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Home Current Weather Forecast Links Archived Data Archived Events
Properties of the Atmosphere
Meteorological Measurements
Weather Maps
Forecasting and Simulating Severe Weather
Atmospheric Stability
Forces and Force Balances
The Development of High- and Low-Pressure Systems
Airmasses and Fronts
Extratropical Cyclones Forming East of the Rocky Mountains
Extratropical Cyclones Forming Along the East and Gulf Coasts
Freezing Precipitation and Ice Storms
Lake Effect Snowstorms
Cold Waves
Great Plains Blizzards
Mountain Snowstorms
Mountain Windstorms
Thunderstorms
Tornadoes
Hailstorms
Lightning
Downbursts
El Niño, La Niña, and the Southern Oscillation
Tropical Cyclones
Floods
Drought
Heat Waves

Archived Data

SourceDescription
Surface Maps
Illinois Hourly contour plots of temperature, dewpoint, surface pressure, and surface observations. Data is available for past three months.
UNISYS US Surface Maps with fronts, Precipitation, and surface observations. Maps available at 00Z and 12Z from 1996 to current.
SPC US surface maps from the Storm Prediction Center (SPC) with sea level pressure analyses and surface observations. Maps available at 00Z and 12Z from Nov. 1998 to current.
USWRP/UCAR Image Archive: May 1996 to present. Requires JavaScript. Depending on day requested may include: ETA500mb analysis, radar composites, radar sites, SPC storm reports, Sat/sfc composites upper air, wind profiler, satellite, soundings, surface.
Satellite Images
Illinois Hourly Visible, IR, and Water Vapor imagery available for last 3 months.
UNISYS Infrared Images for 00z and 12z times. Images include the Atlantic and Pacific Oceans and US. Data is available from 1996 to current.
USWRP/UCAR Image Archive: May 1996 to present. Requires JavaScript. Depending on day requested may include: satellite, ETA500mb analysis, radar composites, radar sites, SPC storm reports, Sat/sfc composites upper air, wind profiler, soundings, surface.
GOES East and West: IR, visible & water vapor. Data available for past 21 days.
Radar Data
USWRP/UCAR Image Archive: May 1996 to present. Requires JavaScript. Depending on day requested may include: ETA500mb analysis, radar composites, radar sites, SPC storm reports, Sat/sfc composites upper air, wind profiler, satellite, soundings, surface.
UCAR NEXRAD imagery for past 6 days. Single images or loops of reflectivity, velocity & regional reflectivity
NCDC National Radar data since 1995. Not up to current month.
Upper Air Maps
USWRP/UCAR Image Archive: May 1996 to present. Requires JavaScript. Depending on day requested may include: ETA500mb analysis, radar composites, radar sites, SPC storm reports, Sat/sfc composites upper air, wind profiler, satellite, soundings, surface.
UNISYS Maps for 850mb, 300mb and the surface are given on one plot. The ETA analysis available at 00Z and 12Z1996 to current.
Wyoming Constant pressure maps (850mb,500mb, etc.) and Soundings for Canada and the US. Available up to current day.
SPC Historic upper air height analyses and sounding observations for six pressure levels (250,300,500,850,925) and surface. Available up to current day for U.S. & southern Canada.
Tropical Data
UW-Madison 24-hour archive of tropical oceans winds, shear, divergence, satellite, vorticity. All tropical ocean regions available.
Johns Hopkins SST composite anaylsis from 1996 to current. User selects ocean region for SST analysis.
UNISYS SST analysis and anomalies (1998 to current) . Times are inconsistent.

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