Alert archive / Alabama / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 142, NWS Mobile, AL

July 3, 1990Baldwin County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Jul 3, 1990, 5:26 PM CDT for Baldwin County, Alabama. It was in force for 64 min.

The area

The counties it named.

The facts

Issued
Jul 3, 1990, 5:26 PM CDT (22:26 UTC)
Expired
Jul 3, 1990, 6:30 PM CDT
In force
64 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.

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 10.4 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.

Skew-T log-pSkew-T log-p diagram, Slidell Radar S, LA at 12:00Z on 1990-07-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 210 joules per kilogram.LCLLFCEL10008507005003002001001 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, Slidell Radar S, LA at 12:00Z on 1990-07-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 32 square meters per square second.193958Sfc1 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
210 J/kg
Mixed-layer CIN
-166 J/kg
Mixed-layer LCL
1240 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
32 m²/s²
0-3 km storm-relative helicity
30 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMOB 032228
SVRMOB
ALC003-032330-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING
NATIONAL WEATHER SERVICE MOBILE AL
526 PM CDT TUE JUL 3 1990
 
THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A
SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING
EFFECTIVE UNTIL  630 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTHWEST ALABAMA
 
   ...WESTERN BALDWIN COUNTY
MOBILE RADAR AT 525 PM CDT SHOWED A SEVERE THUNDERSTORM JUST EAST OF
FAIRHOPE IN BALDWIN COUNTY ALABAMA. THE STORM WAS MOVING WEST AT 20
MPH AND WILL BE CROSSING MOBILE BAY WITHIN THE NEXT 30 MINUTES WEST OF
FAIRHOPE.
 
IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A
STRONG BUILDING.  DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN...
AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS.
STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.

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 3, 2:02 PM CDT, 3 hours 24 minutes before
FLZ001>004-031930-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PENSACOLA FL
200 PM CDT TUE JUL 03 1990

...STRONG THUNDERSTORMS WERE DEVELOPING ALONG COASTAL BAY AND WALTON
COUNTIES...

THUNDERSTORMS...SOME WITH VERY HEAVY RAIN AND GUSTY WINDS...WERE ALONG
THE COAST FROM NEAR PANAMA CITY AND ALONG THE COAST AND COASTAL WATERS
TO NEAR FREEPORT.
THE THUNDERSTORMS WERE MOVING WEST AT 15 MILES AN HOUR...AND HAD
INCREASED IN COVERAGE DURING THE PAST HOUR.

THE STRONGER THUNDERSTORMS ARE CAPABLE OF PRODUCING HEAVY DOWNPOURS
CREATING REDUCED VISIBILITY AND SOME BRIEF FLOODING OF POOR DRAINAGE
AREAS...FREQUENT LIGHTNING...GUSTY WINDS...AND POSSIBLE SMALL HAIL.
PERSONS SHOULD TAKE ANY NECESSARY PRECAUTIONS FOR THESE CONDITIONS
WHEN THE STORMS ARE IN THE AREA.
Special weather statement, Jul 3, 2:37 PM CDT, 2 hours 49 minutes before
FLZ001>004-032030-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE PENSACOLA FL
235 PM CDT MON JUL 02 1990

...STRONG THUNDERSTORMS WERE OVER COASTAL WALTON AND BAY COUNTIES...

THUNDERSTORMS...SOME WITH VERY HEAVY RAIN AND GUSTY WINDS...WERE ALONG
THE COAST AND COASTAL WATERS BETWEEN PANAMA CITY AND DESTIN.
THE THUNDERSTORMS WITH THE HEAVIER RAINS WERE OVER COASTAL WALTON
COUNTY...AND WERE MOVING WEST AT 20 MILES AN HOUR.

THUNDERSTORMS WERE SCATTERED OVER SOUTHEAST ALABAMA...SOUTHWEST GEORGIA
...AND FROM NORTH OF APALACHICOLA INTO SOUTHWEST GEORGIA.

THE STRONGER THUNDERSTORMS ARE CAPABLE OF PRODUCING HEAVY DOWNPOURS...
GUSTY WINDS 35 TO 45 MPH...FREQUENT LIGHTNING...POSSIBLE SMALL HAIL...
AND SOME BRIEF FLOODING OF POOR DRAINAGE AREAS.
PERSONS SHOULD TAKE ANY NECESSARY PRECAUTIONS FOR THESE CONDITIONS
WHEN THE THUNDERSTORMS ARE IN YOUR AREA.
Special weather statement, Jul 3, 4:25 PM CDT, 1 hour 1 minute before
ALZ016-032330-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
425 PM CDT MON JUL 2 1990

...STRONG THUNDERSTORMS MOVING WEST INTO EASTERN BALDWIN COUNTY...

MOBILE RADAR AT 420 PM CDT SHOWED A CLUSTER OF STRONG THUNDERSTORMS
MOVING INTO THE EASTERN PART OF CENTRAL AND SOUTHERN BALDWIN COUNTY
ALABAMA FROM NORTHWEST FLORIDA. THE STORMS WERE MOVING WEST AT 20 MPH.

RESIDENTS IN CENTRAL AND SOUTHERN BALDWIN COUNTY MAY EXPERIENCE STRONG
GUSTY WINDS... DANGEROUS LIGHTNING... BRIEF STREET FLOODING... AND THE
POSSBILE OF SMALL HAIL AS THESE STORMS MOVES WEST ACROSS THE COUNTY FOR
THE NEXT HOUR.
Special weather statement, Jul 3, 4:25 PM CDT, 1 hour 1 minute before
ALZ016-032330-

SPECIAL WEATHER STATEMENT...CORRECT DATE TIME GROUP...
NATIONAL WEATHER SERVICE MOBILE AL
425 PM CDT TUE JUL 3 1990

...STRONG THUNDERSTORMS MOVING WEST INTO EASTERN BALDWIN COUNTY...

MOBILE RADAR AT 420 PM CDT SHOWED A CLUSTER OF STRONG THUNDERSTORMS
MOVING INTO THE EASTERN PART OF CENTRAL AND SOUTHERN BALDWIN COUNTY
ALABAMA FROM NORTHWEST FLORIDA. THE STORMS WERE MOVING WEST AT 20 MPH.

RESIDENTS IN CENTRAL AND SOUTHERN BALDWIN COUNTY MAY EXPERIENCE STRONG
GUSTY WINDS... DANGEROUS LIGHTNING... BRIEF STREET FLOODING... AND THE
POSSBILE OF SMALL HAIL AS THESE STORMS MOVES WEST ACROSS THE COUNTY FOR
THE NEXT HOUR.
Special weather statement, Jul 3, 5:21 PM CDT, 5 minutes before
FLZ001>004-032225-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE PENSACOLA FL
525 PM CDT MON JUL 03 1990

...A TORNADO WARNINGS IS IN EFFECT UNTIL 545 PM CDT FOR THE SOUTH
PORTIONS OF SANTA ROSA AND ESCAMBIA CPUNTIES OF FLORIDA.

THUNDERSTORMS...SOME WITH VERY HEAVY RAIN AND GUSTY WINDS...EXTENDED
FROM SOUTH BALDWIN COUNTY ALABAMA EAST ACROSS NORTHWEST FLORIDA AND THE
ADJACENT COASTAL WATERS TO THE APALACHICOLA RIVER. A LONE THUNDERSTORM
WAS OVER SOUTH COVINGTON COUNTY OF ALABAMA. STRONGEST STORMS WERE OVER
SOUTH BALDWIN COUNTY ALABAMA MOVING TOWARD MOBILE BAY.

A SLIGHT DECREASE IN THUNDERSTORM INTENSITY WAS NOTED DURING THE PAST
HOUR.

MOVEMENTS WERE TOWARD THE WEST NEAR 20 MILES AN HOUR.

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.