Alert archive / Alabama / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 17, NWS Mobile, AL

February 11, 1994Coosa County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Feb 11, 1994, 2:25 AM CST for Coosa County, Alabama. It was in force for 65 min.

The area

The counties it named.

The facts

Issued
Feb 11, 1994, 2:25 AM CST (08:25 UTC)
Expired
Feb 11, 1994, 3:30 AM CST
In force
65 min
Issued by
NWS Mobile, AL
Area
Whole counties

County Coosa County, AL

The nearest sounding before it

Centreville/Bibb, AL (KCKL), launched 00:00Z, 8.4 hours before the alert went out and 89 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 00:00Z on 1994-02-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 554 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 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 00:00Z on 1994-02-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 371 square meters per square second.1939587897Sfc1 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
554 J/kg
Mixed-layer CIN
-35 J/kg
Mixed-layer LCL
561 m above ground
0-6 km bulk shear
58 kt
0-1 km storm-relative helicity
371 m²/s²
0-3 km storm-relative helicity
472 m²/s²
Significant tornado parameter
0.0
Supercell composite
4.5

Open this sounding in Storm Lab

The text

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

000 
WUUS1 KMGM 110824 RRA
SVRMGM
ALC037-110930-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MONTGOMERY AL
225 AM CST FRI FEB 11 1994
 
THE NATIONAL WEATHER SERVICE IN MONTGOMERY HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  330 AM CST
FOR PEOPLE IN THE FOLLOWING LOCATION......
 
IN CENTRAL ALABAMA
 
   ...COOSA COUNTY
 
AT 225 AM WEATHER SERVICE RADAR IN MACON COUNTY INDICATED A SEVERE
THUNDERSTORM IN SOUTHERN COOSA COUNTY NEAR ROUTE 29 MOVING TO THE
NORTHEAST AT 35 TO 40 MILES AN HOUR. THIS STORM WILL MOVE THROUGH
ROCKFORD VERY SHORTLY.
 
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, Feb 10, 11:40 PM CST, 2 hours 45 minutes before
FLZ001>010-012-110540-
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE PENSACOLA FL
1140 PM CST THU FEB 10 1994

...A TONADO WATCH IS IN EFFECT FOR THE FLORIDA PANHANDLE AND
ADJACENT COASTAL WATERS UNTIL MIDNIGHT CST...

AT 1135 PM CST...A LINE OF STRONG THUNDERSTORMS WAS OVER SOUTHWEST
ALABAMA AND THE WEST FLORIDA PANHANDLE AND THE ADJACENT COASTAL WATERS
OUT TO 170 MILES OFFSHORE. THE LEADING EDGE OF THE LINE HAD REACHED
PENSACOLA AND BREWTON ALABAMA.

THE LINE WILL BE MOVING THROUGH THE WEST FLORIDA PANHANDLE DURING THE
NEXT ONE TO TWO HOURS. THE THUNDERSTORMS WILL PRODUCE SOME TORRENTIAL
RAIN...GUSTY WINDS...POSSIBLE HAIL AND POSSIBLE TORNADOES.

THE LINE WAS MOVING TO THE EAST 10 TO 15 MPH.
Special weather statement, Feb 10, 11:58 PM CST, 2 hours 27 minutes before
ALZ052-053-055-056-059-061>064-MSZ075>082-110700-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE, AL
1158 PM CST THU FEB 10 1994

...THE TORNADO WATCH /NUMBER 11/ FOR COASTAL AND SOUTHWEST
   ALABAMA WILL EXPIRE AT MIDNIGHT CST...
...A TORNADO WATCH /NUMBER 13/ IS IN EFFECT FOR CONECUH AND
   ESCAMBIA COUNTIES OF ALABAMA UNTIL 5 AM CST...
...A FLOOD WATCH IS IN EFFECT FOR SOUTHEAST MISSISSIPPI TONIGHT...

AT 1155 PM...NATIONAL WEATHER SERVICE RADAR CONTINUED TO SHOW A LINE
OF STRONG THUNDERSTORMS EXTENDING FROM NEAR MONROEVILLE ALABAMA...TO
ORANGE BEACH ALABAMA...AND OFFSHORE FOR 150 NAUTICAL MILES INTO THE
GULF OF MEXICO.  THE LINE WAS MOVING SLOWLY EASTWARD.  THE SHOWERS
AND THUNDERSTORMS IN THE LINE WERE MOVING TO THE NORTHEAST AT 35 MPH.

THE THUNDERSTORMS IN THE LINE ARE CAPABLE OF PRODUCING VERY HEAVY RAINS
IN A SHORT PERIOD OF TIME...STRONG WIND GUSTS...EVEN HAIL AND TORNADOES.
PERSONS IN THE TORNADO WATCH AREA ARE ADVISED TO PAY CLOSE ATTENTION
TO THE DEVELOPING WEATHER SITUATION...CONTINUE TO MONITOR LOCAL
SOURCES OF WEATHER INFORMATION AND BE READY FOR QUICK ACTION
SHOULD A WARNING BE NECESSARY.

ANOTHER BAND OF SHOWERS WAS MOVING INTO SOUTHEAST MISSISSIPPI
FROM THE WEST.  THESE SHOWERS WILL ADD TO PREVIOUS RAIN TOTALS AND
MAY BRING AREA RIVERS AND STREAMS TO BANKFULL.  PERSONS IN
SOUTHEAST MISSISSIPPI NEAR LOCATIONS PRONE TO FLOODING SHOULD KEEP
AN EYE OUT FOR RISING FLOOD WATERS TONIGHT.
Special weather statement, Feb 11, 12:38 AM CST, 1 hour 47 minutes before
FLZ001>010-012-110630-
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE PENSACOLA FL
1230 AM CST FRI FEB 11 1994

...A TORNADO WATCH IS IN EFFECT FOR THE FLORIDA PANHANDLE AND
ADJACENT COASTAL WATERS UNTIL MIDNIGHT CST...

AT 1230 AM CST...A LINE OF STRONG THUNDERSTORMS STRETCHED FROM DALLAS
COUNTY OF SOUTH ALABAMA SOUTH ACROSS SANTA ROSA COUNTY OF FLORIDA AND
WELL OUT OVER THE GULF. THIS LINE WAS MOVING TOWARDS THE EAST NEAR 20
MILES AN HOUR TOWARDS OKALOOSA AND WALTON COUNTIES OF FLORIDA.

THE LINE WILL BE MOVING THROUGH THE WEST FLORIDA PANHANDLE DURING THE
NEXT ONE TO TWO HOURS. THE THUNDERSTORMS WILL PRODUCE SOME TORRENTIAL
RAIN...GUSTY WINDS...POSSIBLE HAIL AND POSS8IBLE TORNADOES.

ELSEWHERE PATCHES OF LIGHT RAIN WERE OCCURRING AHEAD AND TO THE READ OF
THIS THUNDERSTORM LINE.
Special weather statement, Feb 11, 12:43 AM CST, 1 hour 42 minutes before
FLZ001>010-012-110630-
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY...CORRECTION
NATIONAL WEATHER SERVICE PENSACOLA FL
1230 AM CST FRI FEB 11 1994

...A TORNADO WATCH IS IN EFFECT FOR THE FLORIDA PANHANDLE AND
ADJACENT COASTAL WATERS UNTIL 5 AM CST...

AT 1230 AM CST...A LINE OF STRONG THUNDERSTORMS STRETCHED FROM DALLAS
COUNTY OF SOUTH ALABAMA SOUTH ACROSS SANTA ROSA COUNTY OF FLORIDA AND
WELL OUT OVER THE GULF. THIS LINE WAS MOVING TOWARDS THE EAST NEAR 20
MILES AN HOUR TOWARDS OKALOOSA AND WALTON COUNTIES OF FLORIDA.

THE LINE WILL BE MOVING THROUGH THE WEST FLORIDA PANHANDLE DURING THE
NEXT ONE TO TWO HOURS. THE THUNDERSTORMS WILL PRODUCE SOME TORRENTIAL
RAIN...GUSTY WINDS...POSSIBLE HHAIL AND POSSIBLE TORNADOES.

ELSEWHERE PATCHES OF LIGHT RAIN WERE OCCURRING AHEAD AND TO THE READ OF
THIS THUNDERSTORM LINE.
Special weather statement, Feb 11, 1:30 AM CST, 55 minutes before
ALZ056-059-110830-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
130 AM CST FRI FEB 11 1994

...THE TORNADO WATCH IS NO LONGER IN EFFECT FOR CONECUH AND ESCAMBIA
COUNTIES OF ALABAMA...

AT 125 AM WEATHER SERVICE RADARS INDICATED THAT THE LINE OF STRONG
THUNDERSTORMS HAD MOVED EAST OF ESCAMBIA AND CONECUH COUNTIES...
THEREFORE THE THREAT OF SEVERE WEATHER HAS ENDED.

A SECOND LINE OF SHOWERS AND ISOLATED THUNDERSHOWERS WAS LOCATED ALONG
THE ALABAMA-MISSISSIPPI BORDER AND MOVING TOWARD THE EAST AT 15 TO 20
MPH.  THE LINE IS ASSOCIATED WITH A SHARP COLD FRONT AND MAY CAUSE BRIEF
HEAVY SHOWERS AND GUSTY WINDS.
Special weather statement, Feb 11, 1:32 AM CST, 53 minutes before
FLZ001>010-012-110830-
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE PENSACOLA FL
130 AM CST FRI FEB 11 1994

...A TORNADO WATCH IS IN EFFECT FOR THE FLORIDA PANHANDLE AND
ADJACENT COASTAL WATERS UNTIL 5 AM CST...

AT 130 AM CST...A LINE OF STRONG THUNDERSTORMS STRETCHED FROM BUTLER
COUNTY OF SOUTH ALABAMA SOUTH ACROSS OKALOOSA COUNTY OF FLORIDA AND
WELL OUT OVER THE GULF. THIS LINE WAS MOVING TOWARDS THE EAST NEAR 20
MILES AN HOUR TOWARDS WALTON COUNTY OF FLORIDA.

THE LINE WILL BE MOVING THROUGH THE REMAINDER OF NORTHWEST FLORIDA
DURING THE EARLY MORNING HOURS. THE THUNDERSTORMS WILL PRODUCE HEAVY
RAIN...GUSTY WINDS...AND POSSIBLE HAIL AND TORNADOES.

ELSEWHERE PATCHES OF LIGHT RAIN WERE OCCURRING AHEAD AND TO THE REAR OF
THIS THUNDERSTORM LINE.

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 11, 1:25 AM CSTSevere Thunderstorm WarningMOBAutauga, Lowndes65 min

Nearby

Severe Thunderstorm Warnings in Alabama, 1994Every severe thunderstorm warning in 1994

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.