Analysis Fields

	Current Cycle	Cycle - 6 h	Cycle - 12 h	Cycle - 18 h	Cycle - 24 h	Cycle - 30 h	Cycle - 36 h	Cycle - 42 h	Cycle - 48 h	Loop
Sea Level Pressure Analysis Ensemble mean (contours, hPa) and ensemble standard deviation (shading) sea level pressure.	2014112000	2014111918	2014111912	2014111906	2014111900	2014111818	2014111812	2014111806	2014111800	Loop
Analysis Steering Wind Analysis ensemble mean (barbs) and vector ensemble standard deviation (shading) of 400-800 hPa layer average wind.	2014112000	2014111918	2014111912	2014111906	2014111900	2014111818	2014111812	2014111806	2014111800	Loop
Steering Wind Inc. Background ensemble mean (barbs) and vector increment (shading) 400-800 hPa layer average wind.	2014112000	2014111918	2014111912	2014111906	2014111900	2014111818	2014111812	2014111806	2014111800	Loop
Analysis Precipitable Water Analysis ensemble mean (contours, mm) and ensemble standard deviation (shading) precipitable water.	2014112000	2014111918	2014111912	2014111906	2014111900	2014111818	2014111812	2014111806	2014111800	Loop
Precipitable Water Inc. Background ensemble-mean (contours, mm) and analysis increment (shading) precipitable water valid at analysis time.	2014112000	2014111918	2014111912	2014111906	2014111900	2014111818	2014111812	2014111806	2014111800	Loop
Precipitation Analysis ensemble mean SLP (contours, units hPa) and six hour precipitation (shading, units mm) valid at analysis time.	2014112000	2014111918	2014111912	2014111906	2014111900	2014111818	2014111812	2014111806	2014111800	Loop
Observations Distribution of observations ingested into the assimilation system.	2014112000	2014111918	2014111912	2014111906	2014111900	2014111818	2014111812	2014111806	2014111800	Loop

Observation Diagnostics

	Tropics ( < 30N )	Midlatitude( > 30N )	Full Domain	< 500 km of TC
Rawinsonde U Wind Analysis (black) and background (red) errors against rawinsonde zonal wind observations over past 14 days.	obs	obs	obs	obs
Rawinsonde V Wind Analysis (black) and background (red) errors against rawinsonde meridional wind observations over past 14 days.	obs	obs	obs	obs
Rawinsonde Temperature Analysis (black) and background (red) errors against rawinsonde temperature observations over past 14 days.	obs	obs	obs	obs
Rawinsonde Specific Humidity Analysis (black) and background (red) errors against rawinsonde humidity observations over past 14 days.	obs	obs	obs	obs
Dropsonde U Wind Analysis (black) and background (red) errors against dropsonde zonal wind observations over past 14 days.	obs	obs	obs	obs
Dropsonde V Wind Analysis (black) and background (red) errors against dropsonde meridional wind observations over past 14 days.	obs	obs	obs	obs
Dropsonde Temperature Analysis (black) and background (red) errors against dropsonde temperature observations over past 14 days.	obs	obs	obs	obs
Dropsonde Specific Humidity Analysis (black) and background (red) errors against dropsonde humidity observations over past 14 days.	obs	obs	obs	obs
Satellite U Wind Analysis (black) and background (red) errors against satellite zonal wind observations over past 14 days.	obs	obs	obs	obs
Satellite V Wind Analysis (black) and background (red) errors against satellite meridional wind observations over past 14 days.	obs	obs	obs	obs
GPS Refractivity Analysis (black) and background (red) errors against GPS occultation observations over past 14 days.	obs	obs	obs	obs

Tropical Cyclone Verification

Notes:

• 96 member WRF-ARW ensemble, 36 km horizontal resolution, 36 vertical levels up to 20 hPa, WSM 6 class microphysics, YSU PBL, NOAH LSM.
• All INVEST and TC have a 12 km fixed-move nest.
• Analyses generated each six hours by assimilating surface pressure, rawinsonde data, dropsonde data, aircraft data, ACARS, cloud winds, TC position and minimum SLP data.
• This work is supported by the NOAA Hurricane Forecast Improvement Project and NSF Grant ATM-0850642.
• Calculations are carried out on NOAA t-jet.