Alert archive / Florida / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 13, NWS Tallahassee, FL

March 30, 1993Escambia County, Santa Rosa County, Florida

NWS Tallahassee, FL issued this severe thunderstorm warning at Mar 30, 1993, 1:32 PM CST for Escambia County, Santa Rosa County, Florida. It was in force for 58 min.

The area

The counties it named.

The facts

Issued
Mar 30, 1993, 1:32 PM CST (19:32 UTC)
Expired
Mar 30, 1993, 2:30 PM CST
In force
58 min
Issued by
NWS Tallahassee, FL
Area
Whole counties

Counties Escambia County, FL, Santa Rosa County, FL

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 7.5 hours before the alert went out and 246 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 1993-03-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1840 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 1993-03-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 115 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
1840 J/kg
Mixed-layer CIN
-30 J/kg
Mixed-layer LCL
554 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
115 m²/s²
0-3 km storm-relative helicity
234 m²/s²
Significant tornado parameter
0.8
Supercell composite
4.6

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KPNS 301939 COR
SVRPNS
FLC033-113-302030-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PENSACOLA FL
132 PM CST TUE MAR 30 1993

THE NATIONAL WEATHER SERVICE IN PENSACOLA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  230 PM CST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...

IN NORTHWEST FLORIDA

   ...NORTHERN ESCAMBIA COUNTY...NORTHERN SANTA ROSA COUNTY




A SEVERE THUNDERSTORM WAS INDICATED BY RADAR OVER THE CENTRAL PORTION OF
ESCAMBIA COUNTY OF FLORIDA. IT WAS MOVING TOWARDS THE NORTHEAST ABOUT 30
MILES AN HOUR.


WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING.  DO NOT STAND BY WINDOWS.  DON'T USE TELEPHONES
OvR 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, Mar 30, 12:29 PM CST, 1 hour 3 minutes before
FLZ003-005-GAZ011-301930-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
129 PM EST (1229 PM CST) TUE MAR 30 1993

...STRONG THUNDERSTORMS MOVING INTO JACKSON AND CALHOUN COUNTIES OF
NORTH FLORIDA...

AT 125 PM EST NATIONAL WEATHER SERVICE RADAR INDICATED A BAND OF STRONG
THUNDERSTORMS MOVING ACROSS HOLMES...WASHINGTON...AND
CALHOUN COUNTIES OF NORTH FLORIDA. THESE STORMS WILL BEGIN TO AFFECT
PORTIONS OF JACKSON COUNTY WITHIN THE NEXT HOUR OR SO.  SHOWERS AND
THUNDERSTORMS WILL BE SPREADING ACROSS THE REMAINDER OF THE BIG BEND OF
FLORIDA AND PORTIONS OF EXTREME SOUTHWESTERN GEORGIA DURING THE
REMAINDER OF THIS AFTERNOON AND THIS EVENING.

THESE STORMS WILL BE ACCOMPDANIED BY STRONG GUSTY WINDS...BRIEF HEAVY
RAINS...FREQUENT DANGEROUS LIGHTNING...AND PERHAPS SOME SMALL HAIL AS
THEY MOVE EAST NORTHEASTWARD ACROSS THE AREA AT 25 MPH.

STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER INFORMATION.

The office that day

Everything else NWS Tallahassee, FL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 30, 2:27 PM CSTSevere Thunderstorm WarningTAEEscambia, Okaloosa, Santa Rosa63 min
Mar 30, 3:33 PM CSTSevere Thunderstorm WarningTAEEscambia, Santa Rosa57 min
Mar 30, 3:33 PM CSTSevere Thunderstorm WarningTAEOkaloosa, Walton57 min

Nearby

Severe Thunderstorm Warnings in Florida, 1993Every severe thunderstorm warning in 1993

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.