Alert archive / Alabama / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 179, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at Sep 4, 1990, 4:53 PM CDT for Baldwin County, Alabama. It was in force for 37 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Sep 4, 1990, 4:53 PM CDT (21:53 UTC)
- Expired
- Sep 4, 1990, 5:30 PM CDT
- In force
- 37 min
- Issued by
- NWS Mobile, AL
- Area
- Whole counties
County Baldwin County, AL
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Sep 4, 5:00 PM CDT | Thunderstorm Wind 0 | Baldwin, AL |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 12:00Z, 9.9 hours before the alert went out and 192 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 042156 SVRMOB ALC003-042230- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING NATIONAL WEATHER SERVICE MOBILE AL 453 PM CDT TUE SEP 4 1990 THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING EFFECTIVE UNTIL 530 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTHWEST ALABAMA ...WESTERN BALDWIN COUNTY AND MOBILE BAY AT 450 PM...A SEVERE THUNDERSTORM WAS LOCATED NEAR FAIRHOPE. IT WAS LIKELY PRODUCING STRONG WINDS AND HAIL. THE STORM IS MOVING SOUTHWEST AT 20 MPH AND WILL BE MOVING INTO MOBILE BAY IN THE NEXT FEW MINUTES. 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 25 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 16 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.
The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 4, 5:03 PM CDT | Severe Thunderstorm Warning | MOB | Mobile | 42 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.