1 extreme cold/wind chill, as filed by the National Weather Service.
Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Birmingham, AL wrote its last area forecast discussion before the first event at Aug 21, 1:30 AM CST, 4 hours 30 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE BIRMINGHAM, AL 230 AM CDT TUE AUG 21 2001 THE SURFACE FRONT IS DRAPED ACROSS CENTRAL ALABAMA AT 07Z. THE MODELS CONTINUE TO MOVE IT SOUTHWARD TODAY. DRY AIR HAS FILTERED INTO NORTH ALABAMA WITH DEWPOINTS IN THE LOWER 60S...WITH SOME UPPER 50S. AHEAD OF THE FRONT...THE DEW POINTS ARE STILL IN THE UPPER 60S TO AROUND 70. AT THE UPPER LEVELS...THE TROF THAT EXPENDS FROM THE THE GREAT LAKES THROUGH ALABAMA SHOULD CONTINUE TO MOVE EAST TODAY. THIS WILL ALLOW FOR HIGH PRESSURE TO BUILD INTO THE SOUTHEAST UNITED STATES. SHOULD BE A DRY FORECAST THROUGH THE SHORT TERM. WILL LEAVE THE SLIGHT CHANCE OVER NORTH ALABAMA ON WEDNESDAY. PW/S GO TO OVER ONE INCH...A VORT MAX TRAVELS AROUND THE HIGH...AND LI/S ARE BETWEEN -4 AND -6. NOT CONVINCED THUNDERSTORMS WILL BE ABLE TO BE SQUEEZED OUT AS NOT MUCH LIFT IS PRESENT. MAY JUST RESULT IN A FEW MORE CU. IF A THUNDERSTORM DOES OCCUR...IT COULD MOVE INTO EAST CENTRAL ALABAMA AS PARAMETERS ARE FAIRLY SIMILAR THERE...BUT LI/S ARE NOT QUITE AS LOW. PRELIMINARY NUMBERS FOR COORDINATION PURPOSES ONLY. HSV UA 088/064 091/070 093 002- BHM UA 089/065 091/070 093 0010 MGM UU 091/066 093/070 095 0000 .BHM...NONE. 80
The national radar mosaic for the moment the first event began.
1 extreme cold/wind chill. Local standard time, as filed.
The morning low temperature measured at the Huntsville International Airport was 57 degrees which established a new record low temperature for the date.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Alabama in 2001Every state in 2001This day in weather historyWarnings in Alabama, August 2001
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 5264141.