Alert archive / Mississippi / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 181, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at Sep 4, 1990, 5:24 PM CDT for Jackson County, Mississippi. It was in force for 36 min.
The area
The counties it named.
The facts
- Issued
- Sep 4, 1990, 5:24 PM CDT (22:24 UTC)
- Expired
- Sep 4, 1990, 6:00 PM CDT
- In force
- 36 min
- Issued by
- NWS Mobile, AL
- Area
- Whole counties
County Jackson 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 12:00Z, 10.4 hours before the alert went out and 106 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
- 1207 J/kg
- Mixed-layer CIN
- -92 J/kg
- Mixed-layer LCL
- 1245 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 75 m²/s²
- 0-3 km storm-relative helicity
- 80 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.5
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KMOB 042226 SVRMOB MSC059-042300- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MOBILE AL 524 PM CDT TUE SEP 4 1990 THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 600 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTHEAST MISSISSIPPI ...JACKSON COUNTY AT 525 PM A SEVERE THUNDERSTORM WAS LOCATED JUST NORTH OF MOSS POINT. THIS THUNDERSTORM HAS ALREADY PRODUCED 3/4 INCH HAIL IN GRAND BAY. IT IS MOVING SOUTHWEST AT 20 MPH. 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, Sep 4, 3:28 PM CDT, 1 hour 56 minutes before
ALZ016-042200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOBILE AL 325 PM CDT TUE SEP 4 1990 AT 325 PM A STRONG THUNDERSTORM WAS LOCATED 3 MILES NORTHEAST OF ORANGE BEACH. THIS THUNDERSTORM WAS MOVING SOUTHWEST AT 20 MPH. IT WILL BE MOVING OVER ORANGE BEACH AND GULF SHORES IN THE NEXT 1/2 HOUR. ANOTHER STRONG THUNDERSTORM WAS LOCATED 5 MILES NORTHEAST OF BAY MINETTE. IT WILL BE MOVING OVER BAY MINETTE IN THE NEAR 15 MINUTES. THESE STORMS ARE CAPABLE OF PRODUCING STRONG GUSTY WINDS...DANGEROUS LIGHTNING...HEAVY RAIN...AND POSSIBLY SOME SMALL HAIL.
Special weather statement, Sep 4, 3:37 PM CDT, 1 hour 47 minutes before
ALZ016-042200- SPECIAL WEATHER STATEMENT...CORRECTED TYPO IN SECOND PARAGRAPH NATIONAL WEATHER SERVICE MOBILE AL 335 PM CDT TUE SEP 4 1990 AT 325 PM A STRONG THUNDERSTORM WAS LOCATED 3 MILES NORTHEAST OF ORANGE BEACH. THIS THUNDERSTORM WAS MOVING SOUTHWEST AT 20 MPH. IT WILL BE MOVING OVER ORANGE BEACH AND GULF SHORES IN THE NEXT 1/2 HOUR. ANOTHER STRONG THUNDERSTORM WAS LOCATED 5 MILES NORTHEAST OF BAY MINETTE. IT WILL BE MOVING OVER BAY MINETTE IN THE NEXT 15 MINUTES. THESE STORMS ARE CAPABLE OF PRODUCING STRONG GUSTY WINDS...DANGEROUS LIGHTNING...HEAVY RAIN...AND POSSIBLY SOME SMALL HAIL.
Local storm report, Sep 4, 5:20 PM CDT, 4 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE MOBILE AL
520 PM CDT TUE SEP 4 1990
TIME COUNTY/STATE EVENT
450 PM BALDWIN/AL BALDWIN EOC REPORTED 1/2 INCH HAIL AT
POI NT CLEAR.
510 PM MOBILE/AL GROCERY STORE CONTACT REPORTED HAIL THE
SIZE OF DIMES IN GRAND BAY.Nearby
Severe Thunderstorm Warnings in Mississippi, 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.