Alert archive / Alabama / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 19, NWS Mobile, AL

February 10, 1990Baldwin County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Feb 10, 1990, 3:27 AM CST for Baldwin County, Alabama. It was in force for 63 min.

The area

The counties it named.

The facts

Issued
Feb 10, 1990, 3:27 AM CST (09:27 UTC)
Expired
Feb 10, 1990, 4:30 AM CST
In force
63 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 00:00Z, 9.5 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 00:00Z on 1990-02-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1257 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 00:00Z on 1990-02-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 100 square meters per square second.19395878Sfc1 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
1257 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
650 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
100 m²/s²
0-3 km storm-relative helicity
128 m²/s²
Significant tornado parameter
0.7
Supercell composite
3.7

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMOB 100928
SVRMOB
ALC003-097-MSC059-101030-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
327 AM CST SAT FEB 10 1990
 
THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  430 AM CST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTHWEST ALABAMA
 
   ...NORTHERN BALDWIN COUNTY...MOBILE COUNTY
 
 
 
IN SOUTHEAST MISSISSIPPI
 
   ...JACKSON COUNTY
 
 
 
 
AT 325 AM A LINE OF SEVERE THUNDERSTORMS WAS INDICATED BY RADAR FROM
NEAR TENSAW IN BALDWIN COUNTY TO 10 MILES NORTH OF MOSS POINT
MISSISSIPPI. THE LINE WAS CONTINUING TO MOVE TOWARD THE EAST AT 45
MPH.
 
WIND DAMAGE IS LIKELY WITH THESE THUNDERSTORMS
 
 
A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA.  REMEMBER
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES
WITH LITTLE OR NO ADVANCE WARNING.  REMAIN CALM BUT BE ALERT TO
RAPIDLY CHANGING WEATHER CONDITIONS.
 


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, Feb 10, 12:39 AM CST, 2 hours 48 minutes before
ALZ013-015-016-MSZ013-014-100800-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1240 AM CST SAT FEB 10 1990

...TORNADO WATCH IN EFFECT FOR ALL OF SOUTHEAST MISSISSIPPI AND
SOUTHWEST ALABAMA AND THE ADJACENT COASTAL WATERS UNTIL 600 AM...

AT 1235 AM THE MOBILE RADAR SHOWED A LINE OF VERY STRONG THUNDERSTORMS
FROM EAST CENTRAL TO SOUTHWEST MISSISSIPPI SOUTHWEST INTO CENTRAL
LOUISIANA.  THE LINE WAS MOVING TOWARD THE EAST AT 40 MPH WHILE THE
INDIVIDUAL THUNDERSTORMS WERE MOVING TOWARD THE NORTHEAST AT 45 MPH.

THIS LINE OF THUNDERSTORMS WILL MOVE INTO PORTIONS OF SOUTHEAST
MISSISSIPPI BEFORE 200 AM.  RESIDENTS OF THE AREA SHOULD BE PREPARED
FOR THE POSSIBILITY OF SEVERE WEATHER AND REMAIN ALERT.
Local storm report, Feb 10, 2:06 AM CST, 1 hour 21 minutes before
ATTN SELS
STORM REPORT
NATIONAL WEATHER SERVICE MOBILE AL
205 AM CST SAT FEB 10 1990

150 AM CST  GREENE CO MS  TREES DOWN 6 MILES SOUTH OF RUNNELSTOWN.
                          RPTD BY GREENE CO MISSI|SSIPPI SHERIFF DEPT.
Special weather statement, Feb 10, 2:37 AM CST, 50 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PENSACOLA FL
230 AM CST SAT FEB 10 1990

...THUNDERSTORMS ARE HEADING TOWARDS NORTHWEST FLORIDA...

AT 230 AM CST...A SOLID LINE OF THUNDERSTORMS...SOME WITH VERY HEAVY
RAIN AND GUSTY WINDS...STRETCHED FROM JUST NORTH OF NEW ORLEANS
NORTHEAST TO NEAR BIRMINGHAM ALABAMA. THE LEADING EDGE OF THIS LINE WAS
APPROACHING THE NORTH PORTION OF MOBILE COUNTY ALABAMA AND WAS MOVING
RAPIDLY SOUTHEAST TOWARDS MOBILE. IT IS EXPECTED TO MOVE INTO THE NORTH
PORTIONS OF ESCAMBIA AND SANTA ROSA COUNTIES OF FLORIDA IN AN HOUR OR
TWO. IT APPEARS AT THE PRESENT TIME THAT THE STRONGEST STORMS WILL STAY
TO THE NORTH OF THE WEST FLORIDA PANHANDLE.

ELSEWHERE...SCATTERED SHOWERS WERE OCCURRING FROM THE PANAMA CITY AREA
OF FLORIDA NORTH TO THE DOTHAN AREA OF SOUTHEAST ALABAMA. THESE SHOWERS
WERE MOVING NORTHEAST ABOUT 35 MILES AN HOUR.
Special weather statement, Feb 10, 2:42 AM CST, 45 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY...CORRECTION
NATIONAL WEATHER SERVICE PENSACOLA FL
230 AM CST SAT FEB 10 1990

...THUNDERSTORMS ARE HEADING TOWARDS NORTHWEST FLORIDA...

AT 230 AM CST...A SOLID LINE OF THUNDERSTORMS...SOME WITH VERY HEAVY
RAIN AND GUSTY WINDS...STRETCHED FROM JUST NORTH OF NEW ORLEANS
NORTHEAST TO NEAR BIRMINGHAM ALABAMA. THE LEADING EDGE OF THIS LINE WAS
APPROACHING THE NORTH PORTION OF MOBILE COUNTY ALABAMA AND WAS MOVING
RAPIDLY SOUTHEAST TOWARDS MOBILE. IT IS EXPECTED TO MOVE INTO THE NORTH
PORTIONS OF ESCAMBIA AND SANTA ROSA COUNTIES OF FLORIDA IN AN HOUR OR
TWO. IT APPEARS AT THE PRESENT TIME THAT THE STRONGEST STORMS WILL STAY
TO THE NORTH OF THE WEST FLORIDA PANHANDLE.

ELSEWHERE...SCATTERED SHOWERS WERE OCCURRING FROM THE PANAMA CITY AREA
OF FLORIDA NORTH TO THE DOTHAN AREA OF SOUTHEAST ALABAMA. THESE SHOWERS
WERE MOVING NORTHEAST ABOUT 35 MILES AN HOUR.
Local storm report, Feb 10, 2:56 AM CST, 31 minutes before
ATTN SELS
STORM REPORT
NATIONAL WEATHER SERVICE MOBILE AL
255 AM CST SAT FEB 10 1990

THE FOLLOWING REPORT IS CORRECTED:

150 AM CST  PERRY CO MS  TREES DOWN 6 MILES SOUTH OF RUNNELSTOWN.
                          RPTD BY PERRY CO MISSISSIPPI SHERIFF DEPT.

...PREVIOUSLY REPORTED AS GREENE COUNTY...

244 AM CST GREENE CO MS  POWER LINES DOWN NEAR MCLAIN.  REPORTED BY
SHERIFF.  SVR TSTM WRNG IN EFFECT 147-245 AM.
Local storm report, Feb 10, 3:13 AM CST, 14 minutes before
ATTN SELS
STORM REPORT
NATIONAL WEATHER SERVICE MOBILE AL
310 AM CST SAT FEB 10 1990

230 AM CST WASHINGTON CO AL...TREES REPORTED DOWN IN CHATOM BY SHERIFFS
OFFICE.  ALSO UNCOFIRMED REPORT OF RESIDENTIAL DAMAGE IN YELLOW PINE.
STATE TROOPERS ARE CHECKING IN THE YELLOW PINE AREA AT THIS TIME.

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 10, 1:27 AM CSTSevere Thunderstorm WarningMOBCoffee, Dale48 min
Feb 10, 1:47 AM CSTSevere Thunderstorm WarningMOBWashington58 min
Feb 10, 2:07 AM CSTSevere Thunderstorm WarningMOBClarke68 min
Feb 10, 2:15 AM CSTSevere Thunderstorm WarningMOBDallas, Wilcox60 min
Feb 10, 2:44 AM CSTSevere Thunderstorm WarningMOBMobile, Washington46 min
Feb 10, 2:53 AM CSTSevere Thunderstorm WarningMOBAutauga, Lowndes67 min
Feb 10, 3:05 AM CSTSevere Thunderstorm WarningMOBCoosa, Elmore55 min
Feb 10, 3:05 AM CSTSevere Thunderstorm WarningMOBMontgomery55 min
Feb 10, 3:05 AM CSTSevere Thunderstorm WarningMOBButler55 min
Feb 10, 3:20 AM CSTTornado WarningMOBMontgomery25 min
Feb 10, 3:27 AM CSTSevere Thunderstorm WarningMOBMobile63 min
Feb 10, 3:31 AM CSTSevere Thunderstorm WarningMOBMacon, Tallapoosa59 min
Feb 10, 3:49 AM CSTSevere Thunderstorm WarningMOBChambers, Lee56 min
Feb 10, 3:49 AM CSTSevere Thunderstorm WarningMOBCrenshaw56 min
Feb 10, 3:49 AM CSTSevere Thunderstorm WarningMOBBullock56 min
Feb 10, 3:55 AM CSTSevere Thunderstorm WarningMOBConecuh, Escambia50 min
Feb 10, 4:11 AM CSTSevere Thunderstorm WarningMOBButler, Covington64 min
Feb 10, 4:53 AM CSTSevere Thunderstorm WarningMOBBarbour67 min
Feb 10, 5:08 AM CSTSevere Thunderstorm WarningMOBCoffee, Dale, Geneva67 min
Feb 10, 6:46 AM CSTSevere Thunderstorm WarningMOBMobile44 min
Feb 10, 8:07 AM CSTSevere Thunderstorm WarningMOBBaldwin38 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; the sounding from the Mesonet's radiosonde archive.