Alert archive / Mississippi / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 182, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at Sep 4, 1990, 7:17 PM CDT for Harrison County, Mississippi. It was in force for 28 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, 7:17 PM CDT (00:17 UTC)
- Expired
- Sep 4, 1990, 7:45 PM CDT
- In force
- 28 min
- Issued by
- NWS Mobile, AL
- Area
- Whole counties
County Harrison County, MS
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, 7:20 PM CDT | Thunderstorm Wind 0 | Harrison, MS |
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 00:00Z, 0.3 hours before the alert went out and 62 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
- 1824 J/kg
- Mixed-layer CIN
- -54 J/kg
- Mixed-layer LCL
- 1659 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 13 m²/s²
- 0-3 km storm-relative helicity
- 104 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 2.3
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KMOB 050019 SVRMOB MSC047-050045- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MOBILE AL 717 PM CDT TUE SEP 4 1990 THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 745 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTHEAST MISSISSIPPI ...HARRISON COUNTY AT 615 PM CDT RADAR INDICATED A SEVERE THUNDERSTORM JUST WEST OF LYMAN. THE STORM WAS MOVING TO THE WEST AT 15 MPH. 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 ROAD.
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, 3 hours 49 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, 3 hours 40 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, 1 hour 57 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.Local storm report, Sep 4, 5:44 PM CDT, 1 hour 33 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE MOBILE AL
545 PM CDT TUE SEP 4 1990
TIME COUNTY/STATE EVENT
535 PM JACKSON/MS JACKSON COUNTY SO REPORTS NUMEROUS
TREES ?AND POWER LINES DOWN IN MOSS POINT
AND PASCAGOULA.The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 4, 7:28 PM CDT | Severe Thunderstorm Warning | MOB | Hancock | 47 min |
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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.