Alert archive / Alabama / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 144, NWS Mobile, AL

July 8, 1990Barbour County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Jul 8, 1990, 6:25 PM CDT for Barbour County, Alabama. It was in force for 50 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
Jul 8, 1990, 6:25 PM CDT (23:25 UTC)
Expired
Jul 8, 1990, 7:15 PM CDT
In force
50 min
Issued by
NWS Mobile, AL
Area
Whole counties

County Barbour 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

TimeReportWhereRemark
Jul 8, 6:25 PM CDTHail 1.75Barbour, 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

Centreville/Bibb, AL (KCKL), launched 12:00Z, 11.4 hours before the alert went out and 205 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.

Skew-T log-pSkew-T log-p diagram, Centreville/Bibb, AL at 12:00Z on 1990-07-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Centreville/Bibb, AL at 12:00Z on 1990-07-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 15 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
NaN m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
15 m²/s²
0-3 km storm-relative helicity
51 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KBHM 082327
SVRMGM
ALC005-090015-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MONTGOMERY AL
ISSUED BY BIRMINGHAM AL
625 PM CDT SUN JUL 8 1990
 
THE NATIONAL WEATHER SERVICE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  715 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTH ALABAMA
 
   ...BARBOUR COUNTY
 
AT 625 PM GOLF BALL SIZE HAIL WAS REPORTED ALONG HIGHWAY 431 IN
SOUTHERN BARBOUR COUNTY. THE THUNDERSTORM PRODUCING THIS HAIL WAS
MOVING SLOWLY NORTHWARD TOWARD EUFAULA AND CLAYTON.
 
 
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, Jul 8, 2:41 PM CDT, 3 hours 44 minutes before
FLZ001>004-082035-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE PENSACOLA FL
235 PM CDT SUN JUL 8 1990

...VERY LARGE THUNDERSTORMS WERE OVER NORTHERN ESCAMIBA...SANTA ROSA...
AND OKALOOSA COUNTIES OF FLORIDA AND ADJACENT PORTIONS OF SOUTH CENTRAL
ALABAMA...   THESE LARGE STORMS WILL PRODUCE FREQUENT LIGHTNING STRIKES
AND STRONG GUSTY WINDS...ALONG WITH HEAVY DOWNPOURS AND SOME HAIL.

SCATTERED THUNDERSTORMS WERE OVER SOUTHTEAST MISSISSIPPI...SOUTH
ALABAMA...AND ALSO THE CENTRAL FLORIDA PANHANDLE.

MOVEMENT OF ALL STORMS WAS VERY SLOWLY TO THE WEST.
Special weather statement, Jul 8, 2:44 PM CDT, 3 hours 41 minutes before
ALZ016-ALZ015-ALZ013-MSZ013-MSZ014-082045-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
245 PM CDT SUN JUL 8 1990

...WHO SET THE THERMOSTAT SO HIGH...

WHEN THE TEMPERATURE REACHED THE UPPER 90S THIS AFTERNOON NATURES
AIR CONDITIONING SYSTEM STARTED UP IN THE FORM OF RAPIDLY DEVELOPING
THUNDERSTORMS BRINGING RELEIF FROM THE HEAT TO MANY AREAS.

THUNDERSTORMS ARE A NATURAL AFTERNOON OCCURRENCE ALONG THE GULF COAST
AND DO BRING RELIEF FROM THE HEAT...BUT THEY CAN BE DANGEROUS...DUE
PRIMARILY TO THE LIGHTNING THEY PRODUCE...THEY MAY ALSO PRODUCE STRONG
GUSTY WINDS...HEVY DOWN POURS...AND SMALL HAIL.

AT 240 PM CDT THE MOBILE RADAR SHOWED CLUSTERS OF THUNDERSTORMS MOSTLY
SOUVTH OF A BATON ROUGE LOUISIANA TO MONTGOMERY ALABAMA LINE AND NORTH
OF INTERSTATE 10. THE STORMS WERE MOVING TO THE SOUTHWEST AROUND 10 MPH.

The office that day

Everything else NWS Mobile, AL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 8, 4:17 PM CDTSevere Thunderstorm WarningMOBCoffee, Geneva58 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.