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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
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Mountain Windstorms
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Tornadoes
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Lightning
Downbursts
El Niño, La Niña, and the Southern Oscillation
Tropical Cyclones
Floods
Drought
Heat Waves

Current Weather

Severe Thunderstorms / Heavy Rain
Time Available Information
Storm Reports Severe Reports: Yesterday, Today
Current Watches/Warnings | Watch boxes | Mesoscale discussions | Recent severe storm warnings | NWS warnings
Winter weather warnings
Forecast Severe outlook: Today, Tomorrow, Day 3 | Fire Weather
Precip forecast: Excessive Rainfall | Day-1 / Day-2 / Day-3 | River Flooding
Excessive Snow: 6-18 hr. / 18-30 hr. / 2-Day

Tropical
Data Available information
Data Sources National Hurricane Center
Tropical Page at the U Wisc.-Madison
NRL - Tropical Cyclone Page
Maps Current tracks: Atlantic | NE Pacific | World | Other oceans
Sea Surface Temperature: UW / Anomalies (Navy)

Observations & Local Conditions
Data Available information
Recent Data (temp/rain/snow) Temperature: 24h change
Precip Totals: 7-day | 1-month | 3-month | 12-month | % of Normal
Current Conditions Obs: U.S. / NW / SW / N Plains / S Plains / Midwest / NE / Mid-Atlantic / SE
Regional Obs: NV / CO / SD / KS / TX / AL / MN / IN / NY / AK
Mexico/ Caribbean || Canada: W / E / N | North Pole Obs

Surface Maps
Data Available information
Images Surface Analysis | Surface + radar
Temp | Dewpoint | Pressure | SLP/Wind | SLP/Temp | SLP/Dewpt
US Snow Cover | US Snow Depth
COD surface maps: several contoured map combinations
North American Temperatures | North Pole Surface Map

Upper Air Data
Data Available information
Maps 925 mb | 850 | 700 | 500 | 300 | 250 |
            | 850 | 700 | 500 | 300 | 250 |
            | 850 | 700 | 500 | 300 | 250 | 200 |
Soundings
Plymouth State | U. Wyoming | COD
Profilers COD | RAP | FSL

Satellite
Data Available information
United States Images GOES8/10: VIS | IR | WV | IR/SLP | Sea ice & snow cover
GOES8 (east): vis + winds | ir + winds | wv + winds
GOES10 (west): vis + winds | ir + winds | wv + winds
VIS, WV, IR-color, IR-b/w: clickable satellite + animation
World Images Global: montage | ir | vapor
Atlantic: VIS/ IR/ WV/ WV Winds -- Gulf of Mexico: VIS/ IR
Eastern Caribbean: VIS/ IR -- Europe: IR -- Eastern Pacific: VIS/ IR/ WV/ WV Winds

Radar
Data Available information
Radar NWS radar | NCAR radar imagery


Other links
WW2010 Link Weather World 2010 - online guides to meteorology
Severe Storm Glossary

Department of Atmospheric Sciences Severe and Hazardous Weather at Department of Atmospheric Sciences University of Illinois
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