Alert archive / Alabama / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 176, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at Aug 30, 1990, 4:06 PM CDT for Dale County, Henry County, Alabama. It was in force for 69 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
- Aug 30, 1990, 4:06 PM CDT (21:06 UTC)
- Expired
- Aug 30, 1990, 5:15 PM CDT
- In force
- 69 min
- Issued by
- NWS Mobile, AL
- Area
- Whole counties
Counties Dale County, AL, Henry 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 |
|---|---|---|---|
| Aug 30, 4:20 PM CDT | Hail 0.75 | Dale, 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
Apalachicola Mun, FL (KAQQ), launched 12:00Z, 9.1 hours before the alert went out and 198 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
- 3312 J/kg
- Mixed-layer CIN
- -29 J/kg
- Mixed-layer LCL
- 790 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- 27 m²/s²
- 0-3 km storm-relative helicity
- 24 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KMGM 302110 SVRMGM ALC045-067-302215- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MONTGOMERY AL 406 PM CDT THU AUG 30 1990 THE NATIONAL WEATHER SERVICE IN MONTGOMERY HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 515 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTH ALABAMA ...EASTERN DALE COUNTY...HENRY COUNTY AT 408 PM CDT RADAR INDICATED A SEVERE THUNDERSTORM IN THE NORTHEAST CORNER OF DALE COUNTY MOVING SOUTHEAST AT 10 TO 15 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, Aug 30, 1:38 PM CDT, 2 hours 28 minutes before
FLZ001>004-282125- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE PENSACOLA FL 130 PM CDT THU AUG 30 1990 A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR MOST OF NORTHWEST FLORIDA UNTIL 8 PM CDT. AT 130 PM CDT...THUNDERSTORMS HAD DEVELOPED IN LINES AND CLUSTERS ACROSS NORTHWEST FLORIDA AND SOUTHWEST ALABAMA. ONE QUARTER INCH HAIL WAS REPORTED IN THE FT. WALTON BEACH VICINITY AT 112 PM CDT AND WIND GUSTS TO AROUND 40 MPH. VUERY HEAVY RAINFALL..GUSTY WINDS...FREQUENT LIGHTNING...AND HAIL IS POSSIBLE WITH THE STRONGER THUNDERSTORMS. STAY TUNED FOR LATER STATEMENTS OR WARNINGS.
Local storm report, Aug 30, 2:10 PM CDT, 1 hour 56 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE MOBILE AL
205 PM CDT THU AUG 30 1990
TIME CO/STATE EVENT
145 PM WASHINGTON/AL GROVE HILL STATE AND EOC DIRECTOR REPORTED
TREES{ AND POWER LINES DOWN IN MILLRY...ALSO
ROOFS OFF SEVERAL BUILDINGS.Local storm report, Aug 30, 2:34 PM CDT, 1 hour 32 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE MOBILE AL
230 PM CDT THU AUG 30 1990
TIME CO/STATE EVENT
220 PM ESCAMBIA/AL STATE NURSERY IN POARCH WITH WIND EQUIPMENT
REPORTED SEVERAL GUSTS TO 40 MPH. ALSO...
NICKLE TO QUARTER SIZED HAIL. A GROCERY
CONTACT IN HUXFORD REPORTED DIME TO NICKLE
SIZED HAIL JUST SOUTHWEST OF HUXFORD.Special weather statement, Aug 30, 2:35 PM CDT, 1 hour 31 minutes before
FLZ001>004-302030- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE PENSACOLA FL 230 PM CDT THU AUG 30 1990 A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR MOST OF NORTHWEST FLORIDA UNTIL 8 PM CDT. AT 225 PM CDT...THUNDERSTORMS WERE SCATTERED IN A 25 MILE WIDE AREA FROM THE FLORIDA PANHANDLE TO SOUTHEAST MISSISSIPPI. THE STORMS WERE OCCURRING FROM THE LAUREL...HATTIESBURG AREAS OF MISSISSIPPI...EAST AND SOUTHEAST ACROSS NORTHWEST FLORIDA TO NORTHERN BAY COUNTY. SEVERAL OF THESE THUNDERSTORMS INDICATED FREQUENT LIGHTNING...HAIL... GUSTY WINDS...AND VERY HEAVY RAIN. THE STRONGEST STORMS WERE PRESENTLY LOCATED IN BAY COUNTY NORTHWEST OF PANAMA CITY...AND IN ESCAMBIA COUNTY OF ALABAMA. MOVEMENTS WERE SOUTHEAST 20 TO 25 MPH.
Special weather statement, Aug 30, 3:19 PM CDT, 47 minutes before
ALZ016-302115- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOBILE AL 319 PM CDT THU AUG 30 1990 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 800 PM... ...A SEVERE THUNDERSTORM WARNING IS IN EFFECT UNTIL 330 PM FOR GREENE COUNTY... AT 305 PM...WIND GUSTS FROM 40 TO 50 MPH WERE OCCURRING IN THE MOBILE METRO AREA. THESE WINDS ARE CALLED GUST FRONTS OR OUTFLOW BOUNDARIES AND ARE THE RESULT OF STRONG DOWNDRAFTS FROM NEARBY THUNDERSTORMS. ALTHOUGH THEY ARE DANGEROUS...THEY ARE NOT ASSOCIATED WITH TORNADOS. PEOPLE IN THE MOBILE AREA SHOULD REMAIN IN THEIR HOMES OR SHELTERED AREAS UNTIL THE WINDS SUBSIDE. AN AREA OF THUNDERSTORMS WAS MOVING SOUTH THROUGH SOUTHERN ALABAMA. THESE STORMS HAVE PRODUCED HAIL IN COUNTIES NORTH OF MOBILE IN THE PAST SEVERAL HOURS AND WILL BE MOVING INTO THE MOBILE AREA IN THE NEXT HOUR. PEOPLE SHOULD CONTINUE TO MONITOR THE WEATHER THIS AFTERNOON UNTIL THE WWATCH EXPIRES.
Special weather statement, Aug 30, 3:37 PM CDT, 29 minutes before
FLZ001>004-302030- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE PENSACOLA FL 330 PM CDT THU AUG 30 1990 A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR MOST OF NORTHWEST FLORIDA UNTIL 8 PM CDT. AT 325 PM CDT...STRONG THUNDERSTORMS WERE NUMEROUS IN A BAND...25 MILES WIDE...ACROSS THE GULF COAST. THE THUNDERSTORMS WERE IN CLUSTERS AND SHORT LINES FROM SOUTHEAST MISSISSIPPI...EASTWARD OVER ALABAMA AND NORTHWEST FLORIDA TO DE FUNIAK SPRINGS IN WALTON COUNTY. THESE THUNDERSTORMS HAVE A HISTORY OF SMALL HAIL...FREQUENT LIGHTNING ...GUSTY WINDS AND HEAVY RAIN. THE THUNDERSTORM BAND WAS MOVING SOUTHWARD TOWARD THE COASTLINE.
The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 30, 12:39 PM CDT | Severe Thunderstorm Warning | MOB | Geneva, Houston | 66 min |
| Aug 30, 12:49 PM CDT | Severe Thunderstorm Warning | MOB | Clarke | 56 min |
| Aug 30, 1:44 PM CDT | Severe Thunderstorm Warning | MOB | Washington | 61 min |
| Aug 30, 2:00 PM CDT | Severe Thunderstorm Warning | MOB | Escambia | 45 min |
| Aug 30, 3:57 PM CDT | Severe Thunderstorm Warning | MOB | Mobile | 48 min |
| Aug 30, 4:05 PM CDT | Severe Thunderstorm Warning | MOB | Baldwin | 40 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.