Alert archive / Alabama / Severe Thunderstorm Warnings in 1993
Severe Thunderstorm Warning 30, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at Apr 25, 1993, 11:46 PM CDT for Clarke County, Washington County, Alabama. It was in force for 44 min.
The area
The counties it named.
The facts
- Issued
- Apr 25, 1993, 11:46 PM CDT (04:46 UTC)
- Expired
- Apr 26, 1993, 12:30 AM CDT
- In force
- 44 min
- Issued by
- NWS Mobile, AL
- Area
- Whole counties
Counties Clarke County, AL, Washington County, AL
The nearest sounding before it
Centreville/Bibb, AL (KCKL), launched 00:00Z, 4.8 hours before the alert went out and 169 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
- 495 J/kg
- Mixed-layer CIN
- -17 J/kg
- Mixed-layer LCL
- 1206 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 121 m²/s²
- 0-3 km storm-relative helicity
- 156 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 2.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KMOB 260449 SVRMOB ALC025-129-260530- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MOBILE AL 1146 PM CDT SUN APR 25 1993 THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1230 AM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTHWEST ALABAMA ...CLARKE COUNTY...WASHINGTON COUNTY AT 1140 PM THE MOBILE RADAR INDICATED TWO SEVERE THUNDERSTORMS...ONE NEAR CHATOM IN WASHINGTON COUNTY AND ANOTHER 5 MILES NORTHWEST OF GROVE HILL IN CLARKE COUNTY. BOTH STORMS WERE MOVING TOWARD THE EAST SOUTHEAST AT 25 MPH. THE WASHINGTON COUNTY STORM WILL MOVE OVER CHATOM IN THE NEXT FEW MINUTES AND HEAD FOR THE AREA AROUND WAGARVILLE. IN CLARKE COUNTY...THAT THUNDERSTORM WILL PASS OVER GROVE HILL AND MOVE TOWARD WHATLEY AND GOSPORT. PERSONS IN THE PATH OF THESE STORMS SHOULD TAKE SHELTER IMMEDIATELY. SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROADh.
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 25, 9:59 PM CDT, 1 hour 47 minutes before
ALZ013-260400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOBILE AL 956 PM CDT SUN APR 25 1993 ...STRONG THUNDERSTORMS APPROACHING WASHINGTON AND CLARKE COUNTIES OF ALABAMA... A LINE OF STRONG THUNDERSTORMS MOVING TOWARD THE SOUTHEAST OUT OF EAST CENTRAL MISSISSIPPI IS APPROACHING PORTIONS OF SOUTHWEST ALABAMA. THESE THUNDERSTORMS ARE EXPECTED TO MOVE INTO THE NORTHWEST PORTIONS OF WASHINGTON AND CLARKE COUNTIES DURING THE NEXT COUPLE OF HOURS. RESIDENTS IN THESE COUNTIES CAN EXPECT STRONG GUSTY WINDS...DANGEROUS LIGHTINING...HEAVY RAINFALL AND POSSIBLE HAIL. THE THUNDERSTORMS ARE LIKELY TO AFFECT OTHER SOUTHWEST ALABAMA COUNTIES LATER THIS EVENING AND INTO THE EARLY MORNING HOURS.
The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 25, 10:55 PM CDT | Severe Thunderstorm Warning | MOB | Washington | 50 min |
| Apr 26, 1:25 AM CDT | Severe Thunderstorm Warning | MOB | Mobile | 65 min |
Nearby
Severe Thunderstorm Warnings in Alabama, 1993Every severe thunderstorm warning in 1993
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.