Alert archive / Alabama / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 27, NWS Birmingham, AL
NWS Birmingham, AL issued this severe thunderstorm warning at Apr 1, 1990, 3:17 PM CDT for Greene County, Alabama. It was in force for 28 min.
The area
The counties it named.
The facts
- Issued
- Apr 1, 1990, 3:17 PM CDT (20:17 UTC)
- Expired
- Apr 1, 1990, 3:45 PM CDT
- In force
- 28 min
- Issued by
- NWS Birmingham, AL
- Area
- Whole counties
County Greene County, AL
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Centreville/Bibb, AL (KCKL), launched 12:00Z, 8.3 hours before the alert went out and 70 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 667 J/kg
- Mixed-layer CIN
- -72 J/kg
- Mixed-layer LCL
- 840 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 25 m²/s²
- 0-3 km storm-relative helicity
- 20 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KBHM 012020 SVRBHM ALC063-012045- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE BIRMINGHAM AL 317 PM CDT SUN APR 1 1990 THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 345 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS...... IN SOUTH ALABAMA ...GREENE COUNTY AT 315 PM RADAR INDICATES SEVERE THUNDERSTORMS CONTINUE TO MOVE THROUGH GREENE COUNTY AND A SEVERE THUNDERSTORMS WARNING HAS BEEN EXTENED UNTIL 345 PM CDT. WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A STRONG BUILDING. DO NOT STAND BY WINDOWS. DON'T USE TELEPHONES OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM HAS PASSED. MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Special weather statement, Apr 1, 12:41 PM CDT, 2 hours 36 minutes before
ALZ008-007-011-011840- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BIRMINGHAM AL 1240 PM CDT SUN APR 1 1990 ...STRONG THUNDERSTORMS DEVELOPING IN ALABAMA... AT 1240 PM WEATHER SERVICE RADAR SHOWED A STRONG THUNDERSTORM NEAR THE ALABAMA MISSISSIPPI BORDER...ABOUT 20 MILES WEST NORTHWEST OF ALICEVILLE IN PICKENS COUNTY. ANOTHER STRONG THUNDERSTORM WAS IN TALLEDEGA COUNTY ABOUT 10 MILES SOUTHWEST OF THE CITY OF TALLEDEGA. THIS STORM WILL AFFECT OR PAST CLOSE TO THE CITY OF ASHLAND IN CLAY COUNTY WITHIN THE HOUR. THESE THUNDERSTORMS WERE MOVING TO THE EAST AT 30 MPH. THESE STORMS ARE CAPABLE OF PRODUCING VERY HEAVY RAIN...STRONG GUSTY WINDS AND POSSIBLY SOME HAIL.
Special weather statement, Apr 1, 1:41 PM CDT, 1 hour 36 minutes before
ALZ008-007-011-011940- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BIRMINGHAM AL 140 PM CDT SUN APR 1 1990 AT 140 PM WEATHER SERVICE RADAR SHOWED A WEAKENING TREND OF THUNDERSTORMS IN PICKENS AND CLAY COUNTIES. THE THUNDERSHOWER IN CLAY COUNTY WILL AFFECT THE COMMUNTIES OF BARFIELD AND DELTA WITHIN THE NEXT 30 MINUTES OR SO. THE OTHER STORM IN PICKENS COUNTY HAS DISSIPATED. THESE THUNDERSHOWERS AND SHOWERS WERE MOVING TO THE EAST NORTHEAS3T AT 25 MPH. WEATHER SERVICE RADAR SHOWS MORE THUNDERSTORMS IN CENTRAL AND EASTERN MISSISSIPPI. THESE STORMS MAY AFFECT THE WEST CENTRAL COUNTIES BY 2 PM.
The office that day
Everything else NWS Birmingham, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 1, 2:27 PM CDT | Severe Thunderstorm Warning | BMX | Greene, Pickens | 48 min |
| Apr 1, 2:54 PM CDT | Severe Thunderstorm Warning | BMX | Hale, Tuscaloosa | 51 min |
| Apr 1, 3:54 PM CDT | Severe Thunderstorm Warning | BMX | Hale | 26 min |
| Apr 1, 4:03 PM CDT | Severe Thunderstorm Warning | BMX | Perry | 42 min |
| Apr 1, 4:11 PM CDT | Severe Thunderstorm Warning | BMX | Bibb | 36 min |
| Apr 1, 4:11 PM CDT | Severe Thunderstorm Warning | BMX | Chilton | 64 min |
| Apr 1, 5:18 PM CDT | Severe Thunderstorm Warning | BMX | Chilton | 27 min |
Nearby
Severe Thunderstorm Warnings in Alabama, 1990Every severe thunderstorm warning in 1990
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.