Alert archive / Alabama / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 191, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at Dec 18, 1990, 2:28 PM CST for Mobile County, Alabama. It was in force for 62 min.
The area
The counties it named.
The facts
- Issued
- Dec 18, 1990, 2:28 PM CST (20:28 UTC)
- Expired
- Dec 18, 1990, 3:30 PM CST
- In force
- 62 min
- Issued by
- NWS Mobile, AL
- Area
- Whole counties
County Mobile 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
Slidell Radar S, LA (KSIL), launched 12:00Z, 8.5 hours before the alert went out and 152 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
- 97 J/kg
- Mixed-layer CIN
- -40 J/kg
- Mixed-layer LCL
- 593 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 39 m²/s²
- 0-3 km storm-relative helicity
- 118 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KMOB 182030 SVRMOB ALC097-182130- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MOBILE AL 228 PM CST TUE DEC 18 1990 THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 330 PM CST FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTHWEST ALABAMA ...MOBILE COUNTY AT 124 PM CDT RADAR SHOWED A LINE OF THUNDERSTORMS FROM NEAR PASCAGOULA MISSISSIPPI TO CALVERT ALABAMA...MOVING TO THE NORTHEAST AT NEAR 40 MPH. WIND GUSTS TO 43 MPH WERE RECORDED AT BATES FIELD AT 122 PM. 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, Dec 18, 11:23 AM CST, 3 hours 5 minutes before
MSZ014-013-181900- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOBILE AL 1120 AM CST TUE DEC 18 1990 ...COLD FRONT WITH STRONG GUSTY WIND APPROACHING SOUTHEAST MISSISSIPPI... AT 1115 AM CST RADAR SHOWED A LINE OF RAINSHOWERS FROM EAST OF MERIDIAN TO LAUREL MISSISSIPPI TO JUST WEST OF NEW ORLEANS. THIS LINE IS ASSOCIATED WITH A COLD FRONT THAT IS MOVING TO THE SOUTHEAST AT NEAR 25 MPH. STRONG GUSTY WINDS HAVE BEEN REPORTED WITH THIS FRONT. MERIDIAM MISSISSIPPI RECORDED WIND GUSTS TO 68 MPH WITH THIS FRONTAL PASSAGE. PERSONS IN SOUTHEAST MISSISSIPPI SHOULD BE ALERT FOR POSSIBLE DAMAGING WINDS DURING THE NEXT FEW HOURS AS THIS FRONT MOVES THROUGH.
Special weather statement, Dec 18, 1:46 PM CST, 42 minutes before
ALZ013-015-016MSZ014-013-182030- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOBILE AL 145 PM CST TUE DEC 18 1990 ...COLD FRONT WITH STRONG GUSTY WINDS MOVING INTO EXTREME SOUTHEAST MISSISSIPPI AND SOUTHWEST ALABAMA... AT 130 PM CST RADAR SHOWED A LINE OF SHOWERS AND THUNDERSTORMS FROM NEAR THOMASVILLE ALABAMA TO CITRONELLE TO BILOXI MISSISSIPPI AND SOUTHWEST INTO THE LOUISIANA COASTAL AREA. THIS LINE IS LOCATED NEAR A COLD FRONT MOVING TO THE SOUTHEAST AT 25 MPH. STRONG GUSTY WINDS HAVE BEEN REPORTED WITH THIS FRONT. PERSONS EAST OF THE FRONT SHOULD BE ALERT FOR SHIFTING STRONG GUSTY WINDS AS THE FRONT PASSES. CURRENT MOVEMENT WILL BRING THE FRONT TO A MONROEVILLE TO MOBILE ALABAMA LINE WITHIN 2 HOURS. MARINE INTEREST IN THE MISSISSIPPI COASTAL WATERS CAN EXPECT STRONG GUSTY WINDS AND ROUGH SEAS WITH THIS SYSTEM AS IT MOVES THROUGH.
Special weather statement, Dec 18, 1:47 PM CST, 41 minutes before
ALZ013-015-016MSZ014-013-182145- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOBILE AL 145 PM CST TUE DEC 18 1990 ...COLD FRONT WITH STRONG GUSTY WINDS MOVING INTO EXTREME SOUTHEAST MISSISSIPPI AND SOUTHWEST ALABAMA... AT 140 PM CST RADAR SHOWED A LINE OF SHOWERS AND THUNDERSTORMS FROM NEAR THOMASVILLE ALABAMA TO CITRONELLE TO BILOXI MISSISSIPPI AND SOUTHWEST INTO THE LOUISIANA COASTAL AREA. THIS LINE IS LOCATED NEAR A COLD FRONT MOVING TO THE SOUTHEAST AT 25 MPH. STRONG GUSTY WINDS HAVE BEEN REPORTED WITH THIS FRONT. PERSONS EAST OF THE FRONT SHOULD BE ALERT FOR SHIFTING STRONG GUSTY WINDS AS THE FRONT PASSES. CURRENT MOVEMENT WILL BRING THE FRONT TO A MONROEVILLE TO MOBILE ALABAMA LINE WITHIN 2 HOURS. MARINE INTEREST IN THE MISSISSIPPI COASTAL WATERS CAN EXPECT STRONG GUSTY WINDS AND ROUGH SEAS WITH THIS SYSTEM AS IT MOVES THROUGH.
The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 18, 3:10 PM CST | Severe Thunderstorm Warning | MOB | Baldwin | 65 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.