Alert archive / Mississippi / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 126, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at May 27, 1990, 8:28 PM CDT for Greene County, Mississippi; Washington County, Alabama. It was in force for 32 min.
The area
The counties it named.
The facts
- Issued
- May 27, 1990, 8:28 PM CDT (01:28 UTC)
- Expired
- May 27, 1990, 9:00 PM CDT
- In force
- 32 min
- Issued by
- NWS Mobile, AL
- Area
- Whole counties
Counties Washington County, AL, Greene County, MS
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
Slidell Radar S, LA (KSIL), launched 00:00Z, 1.5 hours before the alert went out and 170 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
- 2426 J/kg
- Mixed-layer CIN
- -16 J/kg
- Mixed-layer LCL
- 939 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 28 m²/s²
- 0-3 km storm-relative helicity
- 45 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.9
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KMOB 280144 COR
SVRMOB
ALC129-MSC041-280200-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING...CORRECTED TO INCLUDE ALL OF WASHINGTON
COUNTY
NATIONAL WEATHER SERVICE MOBILE AL
842 PM CDT SUN MAY 27 1990
THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 900 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
IN SOUTHWEST ALABAMA
...WASHINGTON COUNTY
IN SOUTHEAST MISSISSIPPI
...NORTHEASTERN GREENE COUNTY
AT 825 PM MOBILE RADAR INDICATED A SEVERE THUNDERSTORM NEAR KNOBTOWN
IN NORTHEAST GREENE COUNTY MISSISSIPPI. IT WAS MOVING TO THE NORTHEAST
AT 20 MILES AN HOUR. THIS STORM IS CAPABLE OF PRODUCING DAMAGING WINDS
AND VERY LARGE HAIL.
RESIDENTS OF STATE LINE MISSISSIPPI AND YELLOW PINE ALABAMA SHOULD SEEK
SHELTER NOW.
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, May 27, 8:17 PM CDT, 11 minutes before
ALZ013-015-016-MSZ014-013-280315-
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
815 PM CDT SUN MAY 27 1990
...SEVERE THUNDERSTORM WATCH IN EFFECT FOR SOUTHERN MISSISSIPPI UNTIL
10 PM...
...SEVERE THUNDERSTORM WATCH IN EFFECT FOR SOUTHERN ALABAMA
UNTIL MIDNIGHT...
AT 810 PM...A LINE OF STRONG THUNDERSTORMS WAS LOCATED FROM NEAR CAMP
SHELBY THEN SOUTH ALONG HIGHWAY 49 TO NEAR GULFPORT.
EARLIER...THUNDERSTORMS IN THIS LINE PRODUCED STRONG WINDS...HAIL...
AND SOME TORNADOES IN LOUISIANA AND MISSISSIPPI.
THE LINE WAS MOVING EAST AT 35 MPH. THE LINE OF STORMS WILL BE MOVING
THROUGH THE PASCAGOULA AREA BEFORE 9 PM. THE LINE WILL MOVE THROUGH
THE MOBILE AREA BETWEEN 915 AMD 10 PM TONIGHT AND THROUGH BALDWIN
COUNTY BETWEEN 10 AND 11 PM.
PEOPLE IN SOUTHERN MISSISSIPPI AND SOUTHERN ALABAMA SHOULD CONTINUE TO
MONITOR THE WEATHER TONIGHT UNTIL THESE THUNDERSTORMS MOVE THROUGH.The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 27, 7:02 PM CDT | Severe Thunderstorm Warning | MOB | Pearl River | 58 min |
| May 27, 7:16 PM CDT | Severe Thunderstorm Warning | MOB | Hancock | 44 min |
| May 28, 11:53 AM CDT | Severe Thunderstorm Warning | MOB | Hancock, Pearl River | 67 min |
| May 27, 9:17 PM CDT | Severe Thunderstorm Warning | MOB | Clarke | 58 min |
Nearby
Severe Thunderstorm Warnings in Mississippi, 1990Severe 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.