DT (1.5-PVU surface) potential temperature (shaded, K) and wind barbs (knots), 925–850-hPa layer-averaged cyclonic relative vorticity (black contours, every 0.5 x 10^-4 s^-1)

Indian Ocean Click image for latest 72-h loop	Western North Pacific Click image for latest 72-h loop	North Pacific Click image for latest 72-h loop	Tropical East Pacific Click image for latest 72-h loop	North America Click image for latest 72-h loop	North Atlantic Click image for latest 72-h loop	High-Lat North Atlantic Click image for latest 72-h loop
Select 12/15–12/31 12/7–12/22 12/1–12/15 11/22–12/7 11/15–11/30 11/7–11/22 11/1–11/15 10/22–11/7 10/15–10/31 10/7–10/22 10/1–10/15 9/22–10/7 9/15–9/30 9/7–9/22 9/1–9/15 8/22–9/7 8/15–8/31 8/7–8/22 8/1–8/15 7/22–8/7 7/15–7/31 7/7–7/22 7/1–7/15 6/22–7/7 6/15–6/30 6/7–6/22 6/1–6/15 5/22–6/7 5/15–5/31 5/7–5/22 5/1–5/15 4/22–5/7 4/15–4/30 4/7–4/22 4/1–4/15 3/22–4/7 3/15–3/31 3/7–3/22 3/1–3/15 2/22–3/7 2/15–2/29 2/7–2/22 2/1–2/15 1/22–2/7 1/15–1/31 1/7–1/22 1/1–1/15	Select 12/15–12/31 12/7–12/22 12/1–12/15 11/22–12/7 11/15–11/30 11/7–11/22 11/1–11/15 10/22–11/7 10/15–10/31 10/7–10/22 10/1–10/15 9/22–10/7 9/15–9/30 9/7–9/22 9/1–9/15 8/22–9/7 8/15–8/31 8/7–8/22 8/1–8/15 7/22–8/7 7/15–7/31 7/7–7/22 7/1–7/15 6/22–7/7 6/15–6/30 6/7–6/22 6/1–6/15 5/22–6/7 5/15–5/31 5/7–5/22 5/1–5/15 4/22–5/7 4/15–4/30 4/7–4/22 4/1–4/15 3/22–4/7 3/15–3/31 3/7–3/22 3/1–3/15 2/22–3/7 2/15–2/29 2/7–2/22 2/1–2/15 1/22–2/7 1/15–1/31 1/7–1/22 1/1–1/15	Select 12/15–12/31 12/7–12/22 12/1–12/15 11/22–12/7 11/15–11/30 11/7–11/22 11/1–11/15 10/22–11/7 10/15–10/31 10/7–10/22 10/1–10/15 9/22–10/7 9/15–9/30 9/7–9/22 9/1–9/15 8/22–9/7 8/15–8/31 8/7–8/22 8/1–8/15 7/22–8/7 7/15–7/31 7/7–7/22 7/1–7/15 6/22–7/7 6/15–6/30 6/7–6/22 6/1–6/15 5/22–6/7 5/15–5/31 5/7–5/22 5/1–5/15 4/22–5/7 4/15–4/30 4/7–4/22 4/1–4/15 3/22–4/7 3/15–3/31 3/7–3/22 3/1–3/15 2/22–3/7 2/15–2/29 2/7–2/22 2/1–2/15 1/22–2/7 1/15–1/31 1/7–1/22 1/1–1/15	Select 12/15–12/31 12/7–12/22 12/1–12/15 11/22–12/7 11/15–11/30 11/7–11/22 11/1–11/15 10/22–11/7 10/15–10/31 10/7–10/22 10/1–10/15 9/22–10/7 9/15–9/30 9/7–9/22 9/1–9/15 8/22–9/7 8/15–8/31 8/7–8/22 8/1–8/15 7/22–8/7 7/15–7/31 7/7–7/22 7/1–7/15 6/22–7/7 6/15–6/30 6/7–6/22 6/1–6/15 5/22–6/7 5/15–5/31 5/7–5/22 5/1–5/15 4/22–5/7 4/15–4/30 4/7–4/22 4/1–4/15 3/22–4/7 3/15–3/31 3/7–3/22 3/1–3/15 2/22–3/7 2/15–2/29 2/7–2/22 2/1–2/15 1/22–2/7 1/15–1/31 1/7–1/22 1/1–1/15	Select 12/15–12/31 12/7–12/22 12/1–12/15 11/22–12/7 11/15–11/30 11/7–11/22 11/1–11/15 10/22–11/7 10/15–10/31 10/7–10/22 10/1–10/15 9/22–10/7 9/15–9/30 9/7–9/22 9/1–9/15 8/22–9/7 8/15–8/31 8/7–8/22 8/1–8/15 7/22–8/7 7/15–7/31 7/7–7/22 7/1–7/15 6/22–7/7 6/15–6/30 6/7–6/22 6/1–6/15 5/22–6/7 5/15–5/31 5/7–5/22 5/1–5/15 4/22–5/7 4/15–4/30 4/7–4/22 4/1–4/15 3/22–4/7 3/15–3/31 3/7–3/22 3/1–3/15 2/22–3/7 2/15–2/29 2/7–2/22 2/1–2/15 1/22–2/7 1/15–1/31 1/7–1/22 1/1–1/15	Select 12/15–12/31 12/7–12/22 12/1–12/15 11/22–12/7 11/15–11/30 11/7–11/22 11/1–11/15 10/22–11/7 10/15–10/31 10/7–10/22 10/1–10/15 9/22–10/7 9/15–9/30 9/7–9/22 9/1–9/15 8/22–9/7 8/15–8/31 8/7–8/22 8/1–8/15 7/22–8/7 7/15–7/31 7/7–7/22 7/1–7/15 6/22–7/7 6/15–6/30 6/7–6/22 6/1–6/15 5/22–6/7 5/15–5/31 5/7–5/22 5/1–5/15 4/22–5/7 4/15–4/30 4/7–4/22 4/1–4/15 3/22–4/7 3/15–3/31 3/7–3/22 3/1–3/15 2/22–3/7 2/15–2/29 2/7–2/22 2/1–2/15 1/22–2/7 1/15–1/31 1/7–1/22 1/1–1/15	Select 12/15–12/31 12/7–12/22 12/1–12/15 11/22–12/7 11/15–11/30 11/7–11/22 11/1–11/15 10/22–11/7 10/15–10/31 10/7–10/22 10/1–10/15 9/22–10/7 9/15–9/30 9/7–9/22 9/1–9/15 8/22–9/7 8/15–8/31 8/7–8/22 8/1–8/15 7/22–8/7 7/15–7/31 7/7–7/22 7/1–7/15 6/22–7/7 6/15–6/30 6/7–6/22 6/1–6/15 5/22–6/7 5/15–5/31 5/7–5/22 5/1–5/15 4/22–5/7 4/15–4/30 4/7–4/22 4/1–4/15 3/22–4/7 3/15–3/31 3/7–3/22 3/1–3/15 2/22–3/7 2/15–2/29 2/7–2/22 2/1–2/15 1/22–2/7 1/15–1/31 1/7–1/22 1/1–1/15

Eurasia Click image for latest 72-h loop	Northern Hemisphere Click image for latest 72-h loop	South America Click image for latest 72-h loop	Africa Click image for latest 72-h loop	Australia Click image for latest 72-h loop
Select 12/15–12/31 12/7–12/22 12/1–12/15 11/22–12/7 11/15–11/30 11/7–11/22 11/1–11/15 10/22–11/7 10/15–10/31 10/7–10/22 10/1–10/15 9/22–10/7 9/15–9/30 9/7–9/22 9/1–9/15 8/22–9/7 8/15–8/31 8/7–8/22 8/1–8/15 7/22–8/7 7/15–7/31 7/7–7/22 7/1–7/15 6/22–7/7 6/15–6/30 6/7–6/22 6/1–6/15 5/22–6/7 5/15–5/31 5/7–5/22 5/1–5/15 4/22–5/7 4/15–4/30 4/7–4/22 4/1–4/15 3/22–4/7 3/15–3/31 3/7–3/22 3/1–3/15 2/22–3/7 2/15–2/29 2/7–2/22 2/1–2/15 1/22–2/7 1/15–1/31 1/7–1/22 1/1–1/15	Select 12/15–12/31 12/7–12/22 12/1–12/15 11/22–12/7 11/15–11/30 11/7–11/22 11/1–11/15 10/22–11/7 10/15–10/31 10/7–10/22 10/1–10/15 9/22–10/7 9/15–9/30 9/7–9/22 9/1–9/15 8/22–9/7 8/15–8/31 8/7–8/22 8/1–8/15 7/22–8/7 7/15–7/31 7/7–7/22 7/1–7/15 6/22–7/7 6/15–6/30 6/7–6/22 6/1–6/15 5/22–6/7 5/15–5/31 5/7–5/22 5/1–5/15 4/22–5/7 4/15–4/30 4/7–4/22 4/1–4/15 3/22–4/7 3/15–3/31 3/7–3/22 3/1–3/15 2/22–3/7 2/15–2/29 2/7–2/22 1/22–2/7 1/15–1/31 1/7–1/22 1/1–1/15	Select 12/15–12/31 12/7–12/22 12/1–12/15 11/22–12/7 11/15–11/30 11/7–11/22 11/1–11/15 10/22–11/7 10/15–10/31 10/7–10/22 10/1–10/15 9/22–10/7 9/15–9/30 9/7–9/22 9/1–9/15 8/22–9/7 8/15–8/31 8/7–8/22 8/1–8/15 7/22–8/7 7/15–7/31 7/7–7/22 7/1–7/15 6/22–7/7 7/7–7/22 7/1–7/15 6/22–7/7 6/15–6/30 6/7–6/22 6/1–6/15 5/22–6/7 5/15–5/31 5/7–5/22 5/1–5/15 4/22–5/7 4/15–4/30 4/7–4/22 4/1–4/15 3/22–4/7 3/15–3/31 3/7–3/22 3/1–3/15 2/22–3/7 2/15–2/29 2/7–2/22 1/22–2/7 1/15–1/31 1/7–1/22 1/1–1/15	Select 12/15–12/31 12/7–12/22 12/1–12/15 11/22–12/7 11/15–11/30 11/7–11/22 11/1–11/15 10/22–11/7 10/15–10/31 10/7–10/22 10/1–10/15 9/22–10/7 9/15–9/30 9/7–9/22 9/1–9/15 8/22–9/7 8/15–8/31 8/7–8/22 8/1–8/15 7/22–8/7 7/15–7/31 7/7–7/22 7/1–7/15 6/22–7/7 6/15–6/30 6/7–6/22 6/1–6/15 5/22–6/7 5/15–5/31 5/7–5/22 5/1–5/15 4/22–5/7 4/15–4/30 4/7–4/22 4/1–4/15 3/22–4/7 3/15–3/31 3/7–3/22 3/1–3/15 2/22–3/7 2/15–2/29 2/7–2/22 1/22–2/7 1/15–1/31 1/7–1/22 1/1–1/15	Select 12/15–12/31 12/7–12/22 12/1–12/15 11/22–12/7 11/15–11/30 11/7–11/22 11/1–11/15 10/22–11/7 10/15–10/31 10/7–10/22 10/1–10/15 9/22–10/7 9/15–9/30 9/7–9/22 9/1–9/15 8/22–9/7 8/15–8/31 8/7–8/22 8/1–8/15 7/22–8/7 7/15–7/31 7/7–7/22 7/1–7/15 6/22–7/7 6/15–6/30 6/7–6/22 6/1–6/15 5/22–6/7 5/15–5/31 5/7–5/22 5/1–5/15 4/22–5/7 4/15–4/30 4/7–4/22 4/1–4/15 3/22–4/7 3/15–3/31 3/7–3/22 3/1–3/15 2/22–3/7 2/15–2/29 2/7–2/22 1/22–2/7 1/15–1/31 1/7–1/22 1/1–1/15

250-hPa meridional wind anomaly (m s^-1, shaded according to color bar, departure from a 21-day running mean long-term climatology, only greater than one-standard-deviation magnitudes are plotted) and PV (solid, every 1 PVU, with the zero line omitted)

Northern Hemisphere Click image for latest 72-h loop

Southern Hemisphere Click image for latest 72-h loop

Select 12/15–12/31 12/7–12/22 12/1–12/15 11/22–12/7 11/15–11/30 11/7–11/22 11/1–11/15 10/22–11/7 10/15–10/31 10/7–10/22 10/1–10/15 9/22–10/7 9/15–9/30 9/7–9/22 9/1–9/15 8/22–9/7 8/15–8/31 8/7–8/22 8/1–8/15 7/22–8/7 7/15–7/31 7/7–7/22 7/1–7/15 6/22–7/7 6/15–6/30 6/7–6/22 6/1–6/15 5/22–6/7 5/15–5/31 5/7–5/22 5/1–5/15 4/22–5/7 4/15–4/30 4/7–4/22 4/1–4/15 3/22–4/7 3/15–3/31 3/7–3/22 3/1–3/15 2/22–3/7 2/15–2/29 2/7–2/22 2/1–2/15 1/22–2/7 1/15–1/31 1/7–1/22 1/1–1/15

Select 12/15–12/31 12/7–12/22 12/1–12/15 11/22–12/7 11/15–11/30 11/7–11/22 11/1–11/15 10/22–11/7 10/15–10/31 10/7–10/22 10/1–10/15 9/22–10/7 9/15–9/30 9/7–9/22 9/1–9/15 8/22–9/7 8/15–8/31 8/7–8/22 8/1–8/15 7/22–8/7 7/15–7/31 7/7–7/22 7/1–7/15 6/22–7/7 6/15–6/30 6/7–6/22 6/1–6/15 5/22–6/7 5/15–5/31 5/7–5/22 5/1–5/15 4/22–5/7 4/15–4/30 4/7–4/22 4/1–4/15 3/22–4/7 3/15–3/31 3/7–3/22 3/1–3/15 2/22–3/7 2/15–2/29 2/7–2/22 2/1–2/15 1/22–2/7 1/15–1/31 1/7–1/22 1/1–1/15

250-hPa wind speed (m s^-1, shaded according to color bar), 1000–500-hPa thickness (dashed contours every 6 dam), SLP (solid contours every 4 hPa), total precipitable water (mm, shaded according to gray scale)

Indian Ocean Click image for latest 72-h loop	Western North Pacific Click image for latest 72-h loop	North Pacific Click image for latest 72-h loop	Tropical East Pacific Click image for latest 72-h loop	North America Click image for latest 72-h loop	North Atlantic Click image for latest 72-h loop	High-Lat North Atlantic Click image for latest 72-h loop
Select 12/15–12/31 12/7–12/22 12/1–12/15 11/22–12/7 11/15–11/30 11/7–11/22 11/1–11/15 10/22–11/7 10/15–10/31 10/7–10/22 10/1–10/15 9/22–10/7 9/15–9/30 9/7–9/22 9/1–9/15 8/22–9/7 8/15–8/31 8/7–8/22 8/1–8/15 7/22–8/7 7/15–7/31 7/7–7/22 7/1–7/15 6/22–7/7 6/15–6/30 6/7–6/22 6/1–6/15 5/22–6/7 5/15–5/31 5/7–5/22 5/1–5/15 4/22–5/7 4/15–4/30 4/7–4/22 4/1–4/15 3/22–4/7 3/15–3/31 3/7–3/22 3/1–3/15 2/22–3/7 2/15–2/29 2/7–2/22 2/1–2/15 1/22–2/7 1/15–1/31 1/7–1/22 1/1–1/15	Select 12/15–12/31 12/7–12/22 12/1–12/15 11/22–12/7 11/15–11/30 11/7–11/22 11/1–11/15 10/22–11/7 10/15–10/31 10/7–10/22 10/1–10/15 9/22–10/7 9/15–9/30 9/7–9/22 9/1–9/15 8/22–9/7 8/15–8/31 8/7–8/22 8/1–8/15 7/22–8/7 7/15–7/31 7/7–7/22 7/1–7/15 6/22–7/7 6/15–6/30 6/7–6/22 6/1–6/15 5/22–6/7 5/15–5/31 5/7–5/22 5/1–5/15 4/22–5/7 4/15–4/30 4/7–4/22 4/1–4/15 3/22–4/7 3/15–3/31 3/7–3/22 3/1–3/15 2/22–3/7 2/15–2/29 2/7–2/22 2/1–2/15 1/22–2/7 1/15–1/31 1/7–1/22 1/1–1/15	Select 12/15–12/31 12/7–12/22 12/1–12/15 11/22–12/7 11/15–11/30 11/7–11/22 11/1–11/15 10/22–11/7 10/15–10/31 10/7–10/22 10/1–10/15 9/22–10/7 9/15–9/30 9/7–9/22 9/1–9/15 8/22–9/7 8/15–8/31 8/7–8/22 8/1–8/15 7/22–8/7 7/15–7/31 7/7–7/22 7/1–7/15 6/22–7/7 6/15–6/30 6/7–6/22 6/1–6/15 5/22–6/7 5/15–5/31 5/7–5/22 5/1–5/15 4/22–5/7 4/15–4/30 4/7–4/22 4/1–4/15 3/22–4/7 3/15–3/31 3/7–3/22 3/1–3/15 2/22–3/7 2/15–2/29 2/7–2/22 2/1–2/15 1/22–2/7 1/15–1/31 1/7–1/22 1/1–1/15	Select 12/15–12/31 12/7–12/22 12/1–12/15 11/22–12/7 11/15–11/30 11/7–11/22 11/1–11/15 10/22–11/7 10/15–10/31 10/7–10/22 10/1–10/15 9/22–10/7 9/15–9/30 9/7–9/22 9/1–9/15 8/22–9/7 8/15–8/31 8/7–8/22 8/1–8/15 7/22–8/7 7/15–7/31 7/7–7/22 7/1–7/15 6/22–7/7 6/15–6/30 6/7–6/22 6/1–6/15 5/22–6/7 5/15–5/31 5/7–5/22 5/1–5/15 4/22–5/7 4/15–4/30 4/7–4/22 4/1–4/15 3/22–4/7 3/15–3/31 3/7–3/22 3/1–3/15 2/22–3/7 2/15–2/29 2/7–2/22 2/1–2/15 1/22–2/7 1/15–1/31 1/7–1/22 1/1–1/15	Select 12/15–12/31 12/7–12/22 12/1–12/15 11/22–12/7 11/15–11/30 11/7–11/22 11/1–11/15 10/22–11/7 10/15–10/31 10/7–10/22 10/1–10/15 9/22–10/7 9/15–9/30 9/7–9/22 9/1–9/15 8/22–9/7 8/15–8/31 8/7–8/22 8/1–8/15 7/22–8/7 7/15–7/31 7/7–7/22 7/1–7/15 6/22–7/7 6/15–6/30 6/7–6/22 6/1–6/15 5/22–6/7 5/15–5/31 5/7–5/22 5/1–5/15 4/22–5/7 4/15–4/30 4/7–4/22 4/1–4/15 3/22–4/7 3/15–3/31 3/7–3/22 3/1–3/15 2/22–3/7 2/15–2/29 2/7–2/22 2/1–2/15 1/22–2/7 1/15–1/31 1/7–1/22 1/1–1/15	Select 12/15–12/31 12/7–12/22 12/1–12/15 11/22–12/7 11/15–11/30 11/7–11/22 11/1–11/15 10/22–11/7 10/15–10/31 10/15–10/31 10/7–10/22 10/1–10/15 9/22–10/7 9/15–9/30 9/7–9/22 9/1–9/15 8/22–9/7 8/15–8/31 8/7–8/22 8/1–8/15 7/22–8/7 7/15–7/31 7/7–7/22 7/1–7/15 6/22–7/7 6/15–6/30 6/7–6/22 6/1–6/15 5/22–6/7 5/15–5/31 5/7–5/22 5/1–5/15 4/22–5/7 4/15–4/30 4/7–4/22 4/1–4/15 3/22–4/7 3/15–3/31 3/7–3/22 3/1–3/15 2/22–3/7 2/15–2/29 2/7–2/22 2/1–2/15 1/22–2/7 1/15–1/31 1/7–1/22 1/1–1/15	Select 12/15–12/31 12/7–12/22 12/1–12/15 11/22–12/7 11/15–11/30 11/7–11/22 11/1–11/15 10/22–11/7 10/15–10/31 10/15–10/31 10/7–10/22 10/1–10/15 9/22–10/7 9/15–9/30 9/7–9/22 9/1–9/15 8/22–9/7 8/15–8/31 8/7–8/22 8/1–8/15 7/22–8/7 7/15–7/31 7/7–7/22 7/1–7/15 6/22–7/7 6/15–6/30 6/7–6/22 6/1–6/15 5/22–6/7 5/15–5/31 5/7–5/22 5/1–5/15 4/22–5/7 4/15–4/30 4/7–4/22 4/1–4/15 3/22–4/7 3/15–3/31 3/7–3/22 3/1–3/15 2/22–3/7 2/15–2/29 2/7–2/22 2/1–2/15 1/22–2/7 1/15–1/31 1/7–1/22 1/1–1/15

Eurasia Click image for latest 72-h loop	Northern Hemisphere Click image for latest 72-h loop	South America Click image for latest 72-h loop	Africa Click image for latest 72-h loop	Australia Click image for latest 72-h loop
Select 12/15–12/31 12/7–12/22 12/1–12/15 11/22–12/7 11/15–11/30 11/7–11/22 11/1–11/15 10/22–11/7 10/15–10/31 10/7–10/22 10/1–10/15 9/22–10/7 9/15–9/30 9/7–9/22 9/1–9/15 8/22–9/7 8/15–8/31 8/7–8/22 8/1–8/15 7/22–8/7 7/15–7/31 7/7–7/22 7/1–7/15 6/22–7/7 6/15–6/30 6/7–6/22 6/1–6/15 5/22–6/7 5/15–5/31 5/7–5/22 5/1–5/15 4/22–5/7 4/15–4/30 4/7–4/22 4/1–4/15 3/22–4/7 3/15–3/31 3/7–3/22 3/1–3/15 2/22–3/7 2/15–2/29 2/7–2/22 2/1–2/15 1/22–2/7 1/15–1/31 1/7–1/22 1/1–1/15	Select 12/15–12/31 12/7–12/22 12/1–12/15 11/22–12/7 11/15–11/30 11/7–11/22 11/1–11/15 10/22–11/7 10/15–10/31 10/7–10/22 10/1–10/15 9/22–10/7 9/15–9/30 9/7–9/22 9/1–9/15 8/22–9/7 8/15–8/31 8/7–8/22 8/1–8/15 7/22–8/7 7/15–7/31 7/7–7/22 7/1–7/15 6/22–7/7 6/15–6/30 6/7–6/22 6/1–6/15 5/22–6/7 5/15–5/31 5/7–5/22 5/1–5/15 4/22–5/7 4/15–4/30 4/7–4/22 4/1–4/15 3/22–4/7 3/15–3/31 3/7–3/22 3/1–3/15 2/22–3/7 2/15–2/29 2/7–2/22 2/1–2/15 1/22–2/7 1/15–1/31 1/7–1/22 1/1–1/15	Select 12/15–12/31 12/7–12/22 12/1–12/15 11/22–12/7 11/15–11/30 11/7–11/22 11/1–11/15 10/22–11/7 10/15–10/31 10/7–10/22 10/1–10/15 9/22–10/7 9/15–9/30 9/7–9/22 9/1–9/15 8/22–9/7 8/15–8/31 9/1–9/15 8/22–9/7 8/15–8/31 8/7–8/22 8/1–8/15 7/22–8/7 7/15–7/31 7/7–7/22 7/1–7/15 6/22–7/7 6/15–6/30 6/7–6/22 6/1–6/15 5/22–6/7 5/15–5/31 5/7–5/22 5/1–5/15 4/22–5/7 4/15–4/30 4/7–4/22 4/1–4/15 3/22–4/7 3/15–3/31 3/7–3/22 3/1–3/15 2/22–3/7 2/15–2/29 2/7–2/22 2/1–2/15 1/22–2/7 1/15–1/31 1/7–1/22 1/1–1/15	Select 12/15–12/31 12/7–12/22 12/1–12/15 11/22–12/7 11/15–11/30 11/7–11/22 11/1–11/15 10/22–11/7 10/15–10/31 10/7–10/22 10/1–10/15 9/22–10/7 9/15–9/30 9/7–9/22 9/1–9/15 8/22–9/7 8/15–8/31 8/7–8/22 8/1–8/15 7/22–8/7 7/15–7/31 7/7–7/22 7/1–7/15 6/22–7/7 6/15–6/30 6/7–6/22 6/1–6/15 5/22–6/7 5/15–5/31 5/7–5/22 5/1–5/15 4/22–5/7 4/15–4/30 4/7–4/22 4/1–4/15 3/22–4/7 3/15–3/31 3/7–3/22 3/1–3/15 2/22–3/7 2/15–2/29 2/7–2/22 2/1–2/15 1/22–2/7 1/15–1/31 1/7–1/22 1/1–1/15	Select 12/15–12/31 12/7–12/22 12/1–12/15 11/22–12/7 11/15–11/30 11/7–11/22 11/1–11/15 10/22–11/7 10/15–10/31 10/7–10/22 10/1–10/15 9/22–10/7 9/15–9/30 9/7–9/22 9/1–9/15 8/22–9/7 8/15–8/31 8/7–8/22 8/1–8/15 7/22–8/7 7/15–7/31 7/7–7/22 7/1–7/15 6/22–7/7 6/15–6/30 6/7–6/22 6/1–6/15 5/22–6/7 5/15–5/31 5/7–5/22 5/1–5/15 4/22–5/7 4/15–4/30 4/7–4/22 4/1–4/15 3/22–4/7 3/15–3/31 3/7–3/22 3/1–3/15 2/22–3/7 2/15–2/29 2/7–2/22 2/1–2/15 1/22–2/7 1/15–1/31 1/7–1/22 1/1–1/15

250-hPa wind speed (m s^-1, shaded according to color bar), 250-hPa potential vorticity (gray contours every 1 PVU), 250-hPa relative humidity (%, shaded according to gray scale), 600–400-hPa layer averaged ascent (red contours every 5 x 10^-3 hPa s^-1, negative values only), 300–200-hPa layer averaged irrotational wind (vectors starting at 3 m s^-1)

Indian Ocean Click image for latest 72-h loop	Western North Pacific Click image for latest 72-h loop	North Pacific Click image for latest 72-h loop	Tropical East Pacific Click image for latest 72-h loop	North America Click image for latest 72-h loop	North Atlantic Click image for latest 72-h loop	High-Lat North Atlantic Click image for latest 72-h loop
Select 12/15–12/31 12/7–12/22 12/1–12/15 11/22–12/7 11/15–11/30 11/7–11/22 11/1–11/15 10/22–11/7 10/15–10/31 10/7–10/22 10/1–10/15 9/22–10/7 9/15–9/30 9/7–9/22 9/1–9/15 8/22–9/7 8/15–8/31 8/7–8/22 8/1–8/15 7/22–8/7 7/15–7/31 7/7–7/22 7/1–7/15 6/22–7/7 6/15–6/30 6/7–6/22 6/1–6/15 5/22–6/7 5/15–5/31 5/7–5/22 5/1–5/15 4/22–5/7 4/15–4/30 4/7–4/22 4/1–4/15 3/22–4/7 3/15–3/31 3/7–3/22 3/1–3/15 2/22–3/7 2/15–2/29 2/7–2/22 2/1–2/15 1/22–2/7 1/15–1/31 1/7–1/22 1/1–1/15	Select 12/15–12/31 12/7–12/22 12/1–12/15 11/22–12/7 11/15–11/30 11/7–11/22 11/1–11/15 10/22–11/7 10/15–10/31 10/7–10/22 10/1–10/15 9/22–10/7 9/15–9/30 9/7–9/22 9/1–9/15 8/22–9/7 8/15–8/31 8/7–8/22 8/1–8/15 7/22–8/7 7/15–7/31 7/7–7/22 7/1–7/15 6/22–7/7 6/15–6/30 6/7–6/22 6/1–6/15 5/22–6/7 5/15–5/31 5/7–5/22 5/1–5/15 4/22–5/7 4/15–4/30 4/7–4/22 4/1–4/15 3/22–4/7 3/15–3/31 3/7–3/22 3/1–3/15 2/22–3/7 2/15–2/29 2/7–2/22 2/1–2/15 1/22–2/7 1/15–1/31 1/7–1/22 1/1–1/15	Select 12/15–12/31 12/7–12/22 12/1–12/15 11/22–12/7 11/15–11/30 11/7–11/22 11/1–11/15 10/22–11/7 10/15–10/31 10/7–10/22 10/1–10/15 9/22–10/7 9/15–9/30 9/7–9/22 9/1–9/15 8/22–9/7 8/15–8/31 8/7–8/22 8/1–8/15 7/22–8/7 7/15–7/31 7/7–7/22 7/1–7/15 6/22–7/7 6/15–6/30 6/7–6/22 6/1–6/15 5/22–6/7 5/15–5/31 5/7–5/22 5/1–5/15 4/22–5/7 4/15–4/30 4/7–4/22 4/1–4/15 3/22–4/7 3/15–3/31 3/7–3/22 3/1–3/15 2/22–3/7 2/15–2/29 2/7–2/22 2/1–2/15 1/22–2/7 1/15–1/31 1/7–1/22 1/1–1/15	Select 12/15–12/31 12/7–12/22 12/1–12/15 11/22–12/7 11/15–11/30 11/7–11/22 11/1–11/15 10/22–11/7 10/15–10/31 10/7–10/22 10/1–10/15 9/22–10/7 9/15–9/30 9/7–9/22 9/1–9/15 8/22–9/7 8/15–8/31 8/7–8/22 8/1–8/15 7/22–8/7 7/15–7/31 7/7–7/22 7/1–7/15 6/22–7/7 6/15–6/30 6/7–6/22 6/1–6/15 5/22–6/7 5/15–5/31 5/7–5/22 5/1–5/15 4/22–5/7 4/15–4/30 4/7–4/22 4/1–4/15 3/22–4/7 3/15–3/31 3/7–3/22 3/1–3/15 2/22–3/7 2/15–2/29 2/7–2/22 2/1–2/15 1/22–2/7 1/15–1/31 1/7–1/22 1/1–1/15	Select 12/15–12/31 12/7–12/22 12/1–12/15 11/22–12/7 11/15–11/30 11/7–11/22 11/1–11/15 10/22–11/7 10/15–10/31 10/7–10/22 10/1–10/15 9/22–10/7 9/15–9/30 9/7–9/22 9/1–9/15 8/22–9/7 8/15–8/31 8/7–8/22 8/1–8/15 7/22–8/7 7/15–7/31 7/7–7/22 7/1–7/15 6/22–7/7 6/15–6/30 6/7–6/22 6/1–6/15 5/22–6/7 5/15–5/31 5/7–5/22 5/1–5/15 4/22–5/7 4/15–4/30 4/7–4/22 4/1–4/15 3/22–4/7 3/15–3/31 3/7–3/22 3/1–3/15 2/22–3/7 2/15–2/29 2/7–2/22 2/1–2/15 1/22–2/7 1/15–1/31 1/7–1/22 1/1–1/15	Select 12/15–12/31 12/7–12/22 12/1–12/15 11/22–12/7 11/15–11/30 11/7–11/22 11/1–11/15 10/22–11/7 10/15–10/31 10/7–10/22 10/1–10/15 9/22–10/7 9/15–9/30 9/7–9/22 9/1–9/15 8/22–9/7 8/15–8/31 8/7–8/22 8/1–8/15 7/22–8/7 7/15–7/31 7/7–7/22 7/1–7/15 6/22–7/7 6/15–6/30 6/7–6/22 6/1–6/15 5/22–6/7 5/15–5/31 5/7–5/22 5/1–5/15 4/22–5/7 4/15–4/30 4/7–4/22 4/1–4/15 3/22–4/7 3/15–3/31 3/7–3/22 3/1–3/15 2/22–3/7 2/15–2/29 2/7–2/22 2/1–2/15 1/22–2/7 1/15–1/31 1/7–1/22 1/1–1/15	Select 12/15–12/31 12/7–12/22 12/1–12/15 11/22–12/7 11/15–11/30 11/7–11/22 11/1–11/15 10/22–11/7 10/15–10/31 10/7–10/22 10/1–10/15 9/22–10/7 9/15–9/30 9/7–9/22 9/1–9/15 8/22–9/7 8/15–8/31 8/7–8/22 8/1–8/15 7/22–8/7 7/15–7/31 7/7–7/22 7/1–7/15 6/22–7/7 6/15–6/30 6/7–6/22 6/1–6/15 5/22–6/7 5/15–5/31 5/7–5/22 5/1–5/15 4/22–5/7 4/15–4/30 4/7–4/22 4/1–4/15 3/22–4/7 3/15–3/31 3/7–3/22 3/1–3/15 2/22–3/7 2/15–2/29 2/7–2/22 2/1–2/15 1/22–2/7 1/15–1/31 1/7–1/22 1/1–1/15

Eurasia Click image for latest 72-h loop	South America Click image for latest 72-h loop	Africa Click image for latest 72-h loop	Australia Click image for latest 72-h loop
Select 12/15–12/31 12/7–12/22 12/1–12/15 11/22–12/7 11/15–11/30 11/7–11/22 11/1–11/15 10/22–11/7 10/15–10/31 10/7–10/22 10/1–10/15 9/22–10/7 9/15–9/30 9/7–9/22 9/1–9/15 8/22–9/7 8/15–8/31 8/7–8/22 8/1–8/15 7/22–8/7 7/15–7/31 7/7–7/22 7/1–7/15 6/22–7/7 6/15–6/30 6/7–6/22 6/1–6/15 5/22–6/7 5/15–5/31 5/7–5/22 5/1–5/15 4/22–5/7 4/15–4/30 4/7–4/22 4/1–4/15 3/22–4/7 3/15–3/31 3/7–3/22 3/1–3/15 2/22–3/7 2/15–2/29 2/7–2/22 2/1–2/15 1/22–2/7 1/15–1/31 1/7–1/22 1/1–1/15	Select 12/15–12/31 12/7–12/22 12/1–12/15 11/22–12/7 11/15–11/30 11/7–11/22 11/1–11/15 10/22–11/7 10/15–10/31 10/7–10/22 10/1–10/15 9/22–10/7 9/15–9/30 9/7–9/22 9/1–9/15 8/22–9/7 8/15–8/31 8/7–8/22 8/1–8/15 7/22–8/7 7/15–7/31 7/7–7/22 7/1–7/15 6/22–7/7 6/15–6/30 6/7–6/22 6/1–6/15 5/22–6/7 5/15–5/31 5/7–5/22 5/1–5/15 4/22–5/7 4/15–4/30 4/7–4/22 4/1–4/15 3/22–4/7 3/15–3/31 3/7–3/22 3/1–3/15 2/22–3/7 2/15–2/29 2/7–2/22 2/1–2/15 1/22–2/7 1/15–1/31 1/7–1/22 1/1–1/15	Select 12/15–12/31 12/7–12/22 12/1–12/15 11/22–12/7 11/15–11/30 11/7–11/22 11/1–11/15 10/22–11/7 10/15–10/31 10/7–10/22 10/1–10/15 9/22–10/7 9/15–9/30 9/7–9/22 9/1–9/15 8/22–9/7 8/15–8/31 8/7–8/22 8/1–8/15 7/22–8/7 7/15–7/31 7/7–7/22 7/1–7/15 6/22–7/7 6/15–6/30 6/7–6/22 6/1–6/15 5/22–6/7 5/15–5/31 5/7–5/22 5/1–5/15 4/22–5/7 4/15–4/30 4/7–4/22 4/1–4/15 3/22–4/7 3/15–3/31 3/7–3/22 3/1–3/15 2/22–3/7 2/15–2/29 2/7–2/22 2/1–2/15 1/22–2/7 1/15–1/31 1/7–1/22 1/1–1/15	Select 12/15–12/31 12/7–12/22 12/1–12/15 11/22–12/7 11/1–11/15 10/22–11/7 10/15–10/31 10/7–10/22 10/1–10/15 9/22–10/7 9/15–9/30 9/7–9/22 9/1–9/15 8/22–9/7 8/15–8/31 8/7–8/22 8/1–8/15 7/22–8/7 7/15–7/31 7/7–7/22 7/1–7/15 6/22–7/7 6/15–6/30 6/7–6/22 6/1–6/15 5/22–6/7 5/15–5/31 5/7–5/22 5/1–5/15 4/22–5/7 4/15–4/30 4/7–4/22 4/1–4/15 3/22–4/7 3/15–3/31 3/7–3/22 3/1–3/15 2/22–3/7 2/15–2/29 2/7–2/22 2/1–2/15 1/22–2/7 1/15–1/31 1/7–1/22 1/1–1/15

250-hPa streamfunction (red, every 8 x 10⁶ m² s^-1), PV (gray, every 1 PVU), PV advection by the nondivergent wind (shaded according to the color bar in 10^-4 PVU s^-1), and wind speed (shaded according to the gray scale in m s^-1)

Indian Ocean Click image for latest 72-h loop	Western North Pacific Click image for latest 72-h loop	North Pacific Click image for latest 72-h loop	Tropical East Pacific Click image for latest 72-h loop	North America Click image for latest 72-h loop	North Atlantic Click image for latest 72-h loop	High-Lat North Atlantic Click image for latest 72-h loop
Select 12/15–12/31 12/7–12/22 12/1–12/15 11/22–12/7 11/15–11/30 11/7–11/22 11/1–11/15 10/22–11/7 10/15–10/31 10/7–10/22 10/1–10/15 9/22–10/7 9/15–9/30 9/7–9/22 9/1–9/15 8/22–9/7 8/15–8/31 8/7–8/22 8/1–8/15 7/22–8/7 7/15–7/31 7/7–7/22 7/1–7/15 6/22–7/7 6/15–6/30 6/7–6/22 6/1–6/15 5/22–6/7 5/15–5/31 5/7–5/22 5/1–5/15 4/22–5/7 4/15–4/30 4/7–4/22 4/1–4/15 3/22–4/7 3/15–3/31 3/7–3/22 3/1–3/15 2/22–3/7 2/15–2/29 2/7–2/22 2/1–2/15 1/22–2/7 1/15–1/31 1/7–1/22 1/1–1/15	Select 12/15–12/31 12/7–12/22 12/1–12/15 11/22–12/7 11/15–11/30 11/7–11/22 11/1–11/15 10/22–11/7 10/15–10/31 10/7–10/22 10/1–10/15 9/22–10/7 9/15–9/30 9/7–9/22 9/1–9/15 8/22–9/7 8/15–8/31 8/7–8/22 8/1–8/15 7/22–8/7 7/15–7/31 7/7–7/22 7/1–7/15 6/22–7/7 6/15–6/30 6/7–6/22 6/1–6/15 5/22–6/7 5/15–5/31 5/7–5/22 5/1–5/15 4/22–5/7 3/15–3/31 3/7–3/22 3/1–3/15 2/22–3/7 2/15–2/29 2/7–2/22 2/1–2/15 1/22–2/7 1/15–1/31 1/7–1/22 1/1–1/15	Select 12/15–12/31 12/7–12/22 12/1–12/15 11/22–12/7 11/15–11/30 11/7–11/22 11/1–11/15 10/22–11/7 10/15–10/31 10/7–10/22 10/1–10/15 9/22–10/7 9/15–9/30 9/7–9/22 9/1–9/15 8/22–9/7 8/15–8/31 9/1–9/15 8/22–9/7 8/15–8/31 8/7–8/22 8/1–8/15 7/22–8/7 7/15–7/31 7/7–7/22 7/1–7/15 6/22–7/7 6/15–6/30 6/7–6/22 6/1–6/15 5/22–6/7 5/15–5/31 5/7–5/22 5/1–5/15 4/22–5/7 4/15–4/30 4/7–4/22 4/1–4/15 3/22–4/7 3/15–3/31 3/7–3/22 3/1–3/15 2/22–3/7 2/15–2/29 2/7–2/22 2/1–2/15 1/22–2/7 1/15–1/31 1/7–1/22 1/1–1/15	Select 12/15–12/31 12/7–12/22 12/1–12/15 11/22–12/7 11/15–11/30 11/7–11/22 11/1–11/15 10/22–11/7 10/15–10/31 10/7–10/22 10/1–10/15 9/22–10/7 9/15–9/30 9/7–9/22 9/1–9/15 8/22–9/7 8/15–8/31 8/7–8/22 8/1–8/15 7/22–8/7 7/15–7/31 7/7–7/22 7/1–7/15 6/22–7/7 6/15–6/30 6/7–6/22 6/1–6/15 5/22–6/7 5/15–5/31 5/7–5/22 5/1–5/15 4/22–5/7 4/15–4/30 4/7–4/22 4/1–4/15 3/22–4/7 3/15–3/31 3/7–3/22 3/1–3/15 2/22–3/7 2/15–2/29 2/7–2/22 2/1–2/15 1/22–2/7 1/15–1/31 1/7–1/22 1/1–1/15	Select 12/15–12/31 12/7–12/22 12/1–12/15 11/22–12/7 11/15–11/30 11/7–11/22 11/1–11/15 10/22–11/7 10/15–10/31 10/7–10/22 10/1–10/15 9/22–10/7 9/15–9/30 9/7–9/22 9/1–9/15 8/22–9/7 8/15–8/31 8/7–8/22 8/1–8/15 7/22–8/7 7/15–7/31 7/7–7/22 7/1–7/15 6/22–7/7 6/15–6/30 6/7–6/22 6/1–6/15 5/22–6/7 5/15–5/31 5/7–5/22 5/1–5/15 4/22–5/7 4/15–4/30 4/7–4/22 4/1–4/15 3/22–4/7 3/15–3/31 3/7–3/22 3/1–3/15 2/22–3/7 2/15–2/29 2/7–2/22 2/1–2/15 1/22–2/7 1/15–1/31 1/7–1/22 1/1–1/15	Select 12/15–12/31 12/7–12/22 12/1–12/15 11/22–12/7 11/15–11/30 11/7–11/22 11/1–11/15 10/22–11/7 10/15–10/31 10/7–10/22 10/1–10/15 9/22–10/7 9/15–9/30 9/7–9/22 9/1–9/15 8/22–9/7 8/15–8/31 8/7–8/22 8/1–8/15 7/22–8/7 7/15–7/31 7/7–7/22 7/1–7/15 6/22–7/7 6/15–6/30 6/7–6/22 6/1–6/15 5/22–6/7 5/15–5/31 5/7–5/22 5/1–5/15 4/22–5/7 4/15–4/30 4/7–4/22 4/1–4/15 3/22–4/7 3/15–3/31 3/7–3/22 3/1–3/15 2/22–3/7 2/15–2/29 2/7–2/22 2/1–2/15 1/22–2/7 1/15–1/31 1/7–1/22 1/1–1/15	Select 12/15–12/31 12/7–12/22 12/1–12/15 11/22–12/7 11/15–11/30 11/7–11/22 11/1–11/15 10/22–11/7 10/15–10/31 10/7–10/22 10/1–10/15 9/22–10/7 9/15–9/30 9/7–9/22 9/1–9/15 8/22–9/7 8/15–8/31 8/7–8/22 8/1–8/15 7/22–8/7 7/15–7/31 7/7–7/22 7/1–7/15 6/22–7/7 6/15–6/30 6/7–6/22 6/1–6/15 5/22–6/7 5/15–5/31 5/7–5/22 5/1–5/15 4/22–5/7 4/15–4/30 4/7–4/22 4/1–4/15 3/22–4/7 3/15–3/31 3/7–3/22 3/1–3/15 2/22–3/7 2/15–2/29 2/7–2/22 2/1–2/15 1/22–2/7 1/15–1/31 1/7–1/22 1/1–1/15

Eurasia Click image for latest 72-h loop	South America Click image for latest 72-h loop	Africa Click image for latest 72-h loop	Australia Click image for latest 72-h loop
Select 12/15–12/31 12/7–12/22 12/1–12/15 11/22–12/7 11/15–11/30 11/7–11/22 11/1–11/15 10/22–11/7 10/15–10/31 10/7–10/22 10/1–10/15 9/22–10/7 9/15–9/30 9/7–9/22 9/1–9/15 8/22–9/7 8/15–8/31 8/7–8/22 8/1–8/15 7/22–8/7 7/15–7/31 7/7–7/22 7/1–7/15 6/22–7/7 6/15–6/30 6/7–6/22 6/1–6/15 5/22–6/7 5/15–5/31 5/7–5/22 5/1–5/15 4/22–5/7 4/15–4/30 4/7–4/22 4/1–4/15 3/22–4/7 3/15–3/31 3/7–3/22 3/1–3/15 2/22–3/7 2/15–2/29 2/7–2/22 2/1–2/15 1/22–2/7 1/15–1/31 1/7–1/22 1/1–1/15	Select 12/15–12/31 12/7–12/22 12/1–12/15 11/22–12/7 11/15–11/30 11/7–11/22 11/1–11/15 10/22–11/7 10/15–10/31 10/7–10/22 10/1–10/15 9/22–10/7 9/15–9/30 9/7–9/22 9/1–9/15 8/22–9/7 8/15–8/31 8/7–8/22 8/1–8/15 7/22–8/7 7/15–7/31 7/7–7/22 7/1–7/15 6/22–7/7 6/15–6/30 6/7–6/22 6/1–6/15 5/22–6/7 5/15–5/31 5/7–5/22 5/1–5/15 4/22–5/7 4/15–4/30 4/7–4/22 4/1–4/15 3/22–4/7 3/15–3/31 3/7–3/22 2/15–2/29 2/7–2/22 2/1–2/15 1/22–2/7 1/15–1/31 1/7–1/22 1/1–1/15	Select 12/15–12/31 12/7–12/22 12/1–12/15 11/22–12/7 11/15–11/30 11/7–11/22 11/1–11/15 10/22–11/7 10/15–10/31 10/7–10/22 10/1–10/15 9/22–10/7 9/15–9/30 9/7–9/22 9/1–9/15 8/22–9/7 8/15–8/31 8/7–8/22 8/1–8/15 7/22–8/7 7/15–7/31 7/7–7/22 7/1–7/15 6/22–7/7 6/15–6/30 6/7–6/22 6/1–6/15 5/22–6/7 5/15–5/31 5/7–5/22 5/1–5/15 4/22–5/7 4/15–4/30 4/7–4/22 4/1–4/15 3/22–4/7 3/15–3/31 3/7–3/22 3/1–3/15 2/22–3/7 2/15–2/29 2/7–2/22 2/1–2/15 1/22–2/7 1/15–1/31 1/7–1/22 1/1–1/15	Select 12/15–12/31 12/7–12/22 12/1–12/15 11/22–12/7 11/15–11/30 11/7–11/22 11/1–11/15 10/22–11/7 10/15–10/31 10/7–10/22 10/1–10/15 9/22–10/7 9/15–9/30 9/7–9/22 9/1–9/15 8/22–9/7 8/15–8/31 8/7–8/22 8/1–8/15 7/22–8/7 7/15–7/31 7/7–7/22 7/1–7/15 6/22–7/7 6/15–6/30 6/7–6/22 6/1–6/15 5/22–6/7 5/15–5/31 5/7–5/22 5/1–5/15 4/22–5/7 4/15–4/30 4/7–4/22 4/1–4/15 3/22–4/7 3/15–3/31 3/7–3/22 3/1–3/15 2/22–3/7 2/15–2/29 2/7–2/22 2/1–2/15 1/22–2/7 1/15–1/31 1/7–1/22 1/1–1/15

700-hPa geopotential height (solid blue, dam), temperature (dashed red, °C), Q vector (arrows, plotted for values greater than 5 x 10^-7 Pa m^-1 s^-1 only), and Term A of the Q-vector form of the QG Omega equation (shaded according to the colorbar, 10^-12 Pa m^-2 s^-1)

Indian Ocean Click image for latest 72-h loop	Western North Pacific Click image for latest 72-h loop	North Pacific Click image for latest 72-h loop	North America Click image for latest 72-h loop	North Atlantic Click image for latest 72-h loop	High-Lat North Atlantic Click image for latest 72-h loop
Select 12/15–12/31 12/7–12/22 12/1–12/15 11/22–12/7 11/15–11/30 11/7–11/22 11/1–11/15 10/22–11/7 10/15–10/31 10/7–10/22 10/1–10/15 9/22–10/7 9/15–9/30 9/7–9/22 9/1–9/15 8/22–9/7 8/15–8/31 8/7–8/22 8/1–8/15 7/22–8/7 7/15–7/31 7/7–7/22 7/1–7/15 6/22–7/7 6/15–6/30 6/7–6/22 6/1–6/15 5/22–6/7 5/15–5/31 5/7–5/22 5/1–5/15 4/22–5/7 4/15–4/30 4/7–4/22 4/1–4/15 3/22–4/7 3/15–3/31 3/7–3/22 3/1–3/15 2/22–3/7 2/15–2/29 2/7–2/22 2/1–2/15 1/22–2/7 1/15–1/31 1/7–1/22 1/1–1/15	Select 12/15–12/31 12/7–12/22 12/1–12/15 11/22–12/7 11/15–11/30 11/7–11/22 11/1–11/15 10/22–11/7 10/15–10/31 10/7–10/22 10/1–10/15 9/22–10/7 9/15–9/30 9/7–9/22 9/1–9/15 8/22–9/7 8/15–8/31 8/7–8/22 8/1–8/15 7/22–8/7 7/15–7/31 7/7–7/22 7/1–7/15 6/22–7/7 6/15–6/30 6/7–6/22 6/1–6/15 5/22–6/7 5/15–5/31 5/7–5/22 5/1–5/15 4/22–5/7 4/15–4/30 4/7–4/22 4/1–4/15 3/22–4/7 3/15–3/31 3/7–3/22 3/1–3/15 2/22–3/7 2/15–2/29 2/7–2/22 2/1–2/15 1/22–2/7 1/15–1/31 1/7–1/22 1/1–1/15	Select 12/15–12/31 12/7–12/22 12/1–12/15 11/22–12/7 11/15–11/30 11/7–11/22 11/1–11/15 10/22–11/7 10/15–10/31 10/7–10/22 10/1–10/15 9/22–10/7 9/15–9/30 9/7–9/22 9/1–9/15 8/22–9/7 8/15–8/31 8/7–8/22 8/1–8/15 7/22–8/7 7/15–7/31 7/7–7/22 7/1–7/15 6/22–7/7 6/15–6/30 6/7–6/22 6/1–6/15 5/22–6/7 5/15–5/31 5/7–5/22 5/1–5/15 4/22–5/7 3/15–3/31 3/7–3/22 3/1–3/15 2/22–3/7 2/15–2/29 2/7–2/22 2/1–2/15 1/22–2/7 1/15–1/31 1/7–1/22 1/1–1/15	Select 12/15–12/31 12/7–12/22 12/1–12/15 11/22–12/7 11/15–11/30 11/7–11/22 11/1–11/15 10/22–11/7 10/15–10/31 10/7–10/22 10/1–10/15 9/22–10/7 9/15–9/30 9/7–9/22 9/1–9/15 8/22–9/7 8/15–8/31 8/7–8/22 8/1–8/15 7/22–8/7 7/15–7/31 7/7–7/22 7/1–7/15 6/22–7/7 6/15–6/30 6/7–6/22 6/1–6/15 5/22–6/7 5/15–5/31 5/7–5/22 5/1–5/15 4/22–5/7 4/15–4/30 4/7–4/22 4/1–4/15 3/22–4/7 3/15–3/31 3/7–3/22 3/1–3/15 2/22–3/7 2/15–2/29 2/7–2/22 2/1–2/15 1/22–2/7 1/15–1/31 1/7–1/22 1/1–1/15	Select 12/15–12/31 12/7–12/22 12/1–12/15 11/22–12/7 11/15–11/30 11/7–11/22 11/1–11/15 10/22–11/7 10/15–10/31 10/7–10/22 10/1–10/15 9/22–10/7 10/7–10/22 10/1–10/15 9/22–10/7 9/15–9/30 9/7–9/22 9/1–9/15 8/22–9/7 8/15–8/31 8/7–8/22 8/1–8/15 7/22–8/7 7/15–7/31 7/7–7/22 7/1–7/15 6/22–7/7 6/15–6/30 6/7–6/22 6/1–6/15 5/22–6/7 5/15–5/31 5/7–5/22 5/1–5/15 4/22–5/7 4/15–4/30 4/7–4/22 4/1–4/15 3/22–4/7 3/15–3/31 3/7–3/22 3/1–3/15 2/22–3/7 2/15–2/29 2/7–2/22 2/1–2/15 1/22–2/7 1/15–1/31 1/7–1/22 1/1–1/15	Select 12/15–12/31 12/7–12/22 12/1–12/15 11/22–12/7 11/15–11/30 11/7–11/22 11/1–11/15 10/22–11/7 10/15–10/31 10/7–10/22 10/1–10/15 9/22–10/7 9/15–9/30 9/7–9/22 9/1–9/15 8/22–9/7 8/15–8/31 8/7–8/22 8/1–8/15 7/22–8/7 7/15–7/31 7/7–7/22 7/1–7/15 6/22–7/7 6/15–6/30 6/7–6/22 6/1–6/15 5/22–6/7 5/15–5/31 5/7–5/22 5/1–5/15 4/22–5/7 4/15–4/30 4/7–4/22 4/1–4/15 3/22–4/7 3/15–3/31 3/7–3/22 3/1–3/15 2/22–3/7 2/15–2/29 2/7–2/22 2/1–2/15 1/22–2/7 1/15–1/31 1/7–1/22 1/1–1/15

Eurasia Click image for latest 72-h loop	South America Click image for latest 72-h loop	Africa Click image for latest 72-h loop	Australia Click image for latest 72-h loop
Select 12/15–12/31 12/7–12/22 12/1–12/15 11/22–12/7 11/15–11/30 11/7–11/22 11/1–11/15 10/22–11/7 10/15–10/31 10/7–10/22 10/1–10/15 9/22–10/7 9/15–9/30 9/7–9/22 9/1–9/15 8/22–9/7 8/15–8/31 8/7–8/22 8/1–8/15 7/22–8/7 7/15–7/31 7/7–7/22 7/1–7/15 6/22–7/7 6/15–6/30 6/7–6/22 6/1–6/15 5/22–6/7 5/15–5/31 5/7–5/22 5/1–5/15 4/22–5/7 4/15–4/30 4/7–4/22 4/1–4/15 3/22–4/7 3/15–3/31 3/7–3/22 3/1–3/15 2/22–3/7 2/15–2/29 2/7–2/22 2/1–2/15 1/22–2/7 1/15–1/31 1/7–1/22 1/1–1/15	Select 12/15–12/31 12/7–12/22 12/1–12/15 11/22–12/7 11/15–11/30 11/7–11/22 11/1–11/15 10/22–11/7 10/15–10/31 10/7–10/22 10/1–10/15 9/22–10/7 9/15–9/30 9/7–9/22 9/1–9/15 8/22–9/7 8/15–8/31 8/7–8/22 8/1–8/15 7/22–8/7 7/15–7/31 7/7–7/22 7/1–7/15 6/22–7/7 6/15–6/30 6/7–6/22 6/1–6/15 5/22–6/7 5/15–5/31 5/7–5/22 5/1–5/15 4/22–5/7 4/15–4/30 4/7–4/22 4/1–4/15 3/22–4/7 3/15–3/31 3/7–3/22 3/1–3/15 2/22–3/7 2/15–2/29 2/7–2/22 2/1–2/15 1/22–2/7 1/15–1/31 1/7–1/22 1/1–1/15	Select 12/15–12/31 12/7–12/22 12/1–12/15 11/22–12/7 11/15–11/30 11/7–11/22 11/1–11/15 10/22–11/7 10/15–10/31 10/7–10/22 10/1–10/15 9/22–10/7 9/15–9/30 9/7–9/22 9/1–9/15 8/22–9/7 8/15–8/31 8/7–8/22 8/1–8/15 7/22–8/7 7/15–7/31 7/7–7/22 7/1–7/15 6/22–7/7 6/15–6/30 6/7–6/22 6/1–6/15 5/22–6/7 5/15–5/31 5/7–5/22 5/1–5/15 4/22–5/7 4/15–4/30 4/7–4/22 4/1–4/15 3/22–4/7 3/15–3/31 3/7–3/22 3/1–3/15 2/22–3/7 2/15–2/29 2/7–2/22 2/1–2/15 1/22–2/7 1/15–1/31 1/7–1/22 1/1–1/15	Select 12/15–12/31 12/7–12/22 12/1–12/15 11/22–12/7 11/15–11/30 11/7–11/22 11/1–11/15 10/22–11/7 10/15–10/31 10/7–10/22 10/1–10/15 9/22–10/7 9/15–9/30 9/7–9/22 9/1–9/15 8/22–9/7 8/15–8/31 8/7–8/22 8/1–8/15 7/22–8/7 7/15–7/31 7/7–7/22 7/1–7/15 6/22–7/7 6/15–6/30 6/7–6/22 6/1–6/15 5/22–6/7 6/1–6/15 5/22–6/7 5/15–5/31 5/7–5/22 5/1–5/15 4/22–5/7 4/15–4/30 4/7–4/22 4/1–4/15 3/22–4/7 3/15–3/31 3/7–3/22 3/1–3/15 2/22–3/7 2/15–2/29 2/7–2/22 2/1–2/15 1/22–2/7 1/15–1/31 1/7–1/22 1/1–1/15