27-28 April 2011 Severe Weather Outbreak

Maplist Posts:

Synoptic Overview (from Lance Bosart)

Synoptic Analysis & Scientific Questions (from Clark Evans)

NAM Sounding & Hodograph (from Lance Bosart)

Standardized Anomalies (courtesy of Tom Galarneau):

850-hPa Height, Temp, U-wind, V-wind (1200 UTC 27 Apr)

500-hPa Height, Temp, U-wind, V-wind (1200 UTC 27 Apr)

200-hPa Height, Temp, U-wind, V-wind (1200 UTC 27 Apr)

850-hPa Height, Temp, U-wind, V-wind (0000 UTC 28 Apr)

500-hPa Height, Temp, U-wind, V-wind (0000 UTC 28 Apr)

200-hPa Height, Temp, U-wind, V-wind (0000 UTC 28 Apr)

Synoptic Forcing (courtesty of Heather Archambault):

DT Theta/Wind, 925-850-hPa Rel Vort (1200 UTC 27 Apr)

700-hPa Height, Temp, Q-vectors (1200 UTC 27 Apr)

1000-500-hPa Thck, 250-hPa Wind, SLP, PW (1200 UTC 27 Apr)

250-hPa Wind/PV/RH, 600-400-hPa Omega, 300-200-hPa IW (1200 UTC 27 Apr)

DT Theta/Wind, 925-850-hPa Rel Vort (0000 UTC 28 Apr)

700-hPa Height, Temp, Q-vectors (0000 UTC 28 Apr)

1000-500-hPa Thck, 250-hPa Wind, SLP, PW (0000 UTC 28 Apr)

250-hPa Wind/PV/RH, 600-400-hPa Omega, 300-200-hPa IW (0000 UTC 28 Apr)

Soundings & Hodographs:

NAM Sounding (0000 UTC 27 Apr)

NAM Hodograph (0000 UTC 27 Apr)

Jackson, MS (1800 UTC 27 Apr)

Birmingham, AL (1800 UTC 27 Apr)

Birmingham, AL (0000 UTC 28 Apr)

Intraseasonal Climate Variability:

Daily 500-hPa Height Anomaly (27 Mar - 25 April 2011)

NAO: Observed & Ensemble Forecasts (from CPC)

10-day, 30-day, and 90-day Storm Tracks (from CPC)

500-hPa Zonal Wind Anomaly (1-26 April 2011)

925-hPa Specific Humidity Anomaly (1-25 April 2011)

NOAA/NESDIS Gulf of Mexico SSTs (24-26 April 2011)

NOAA/NESDIS SST Anomaly (28 April 2011)