Alert archive / Florida / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 28, NWS Tallahassee, FL

March 16, 1990Escambia County, Santa Rosa County, Florida

NWS Tallahassee, FL issued this severe thunderstorm warning at Mar 16, 1990, 4:47 PM CST for Escambia County, Santa Rosa County, Florida. It was in force for 28 min.

The area

The counties it named.

The facts

Issued
Mar 16, 1990, 4:47 PM CST (22:47 UTC)
Expired
Mar 16, 1990, 5:15 PM CST
In force
28 min
Issued by
NWS Tallahassee, FL
Area
Whole counties

Counties Escambia County, FL, Santa Rosa County, FL

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

Apalachicola Mun, FL (KAQQ), launched 12:00Z, 10.8 hours before the alert went out and 233 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, Apalachicola Mun, FL at 12:00Z on 1990-03-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 17 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, Apalachicola Mun, FL at 12:00Z on 1990-03-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 238 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
17 J/kg
Mixed-layer CIN
-169 J/kg
Mixed-layer LCL
1083 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
238 m²/s²
0-3 km storm-relative helicity
323 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.7

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KPNS 162245
SVRPNS
FLC033-113-162315-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PENSACOLA FL
447 PM CST FRI MAR 16 1990
 
THE NATIONAL WEATHER SERVICE IN PENSACOLA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  515 PM CST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTHWEST FLORIDA
 
   ...SOUTHERN ESCAMBIA COUNTY...SOUTHERN SANTA ROSA COUNTY
 
 
 
 
A SEVERE THUNDERSTORM WAS INDICATED BY RADAR 5 MILES SOUTH OF
PENSACOLA BEACH AT 444 PM. THE STORM WAS MOVING TO THE NORTH-
EAST AROUND 30 MPH.
 
 
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.
 
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, Mar 16, 2:57 PM CST, 1 hour 50 minutes before
FLZ003-005-GAZ011-012-162300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
356 PM EST (256 PM CST) FRI MAR 16 1990

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM EST THIS FRIDAY
AFTERNOON FOR MUCH OF NORTHWEST AND NORTH FLORIDA AND FOR SOUTHWEST
AND SOUTH CENTRAL GEORGIA. AT THIS TIME NATIONAL WEATHER SERVICE
RADARS INDICATED ONLY ISOLATED SHOWERS FROM DOTHAN AL TO CRESTVIEW FL.
THIS WILL BE THE LAST SPECIAL WEATHER STATEMENT UNTIL RADAR OR SURFACE
REPORTS INDICATE ANY SIGNIFICANT WEATHER.

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 16, 8:01 AM CSTSevere Thunderstorm WarningTAEEscambia, Santa Rosa59 min
Mar 16, 9:51 AM CSTFlash Flood WarningTAEEscambia, Santa Rosa2 hr
Mar 16, 10:37 AM CSTTornado WarningTAEEscambia, Santa Rosa38 min
Mar 16, 12:04 PM CSTFlash Flood WarningTAEEscambia, Santa Rosa116 min
Mar 16, 1:55 PM CSTFlash Flood WarningTAEEscambia, Santa Rosa2 hr
Mar 16, 2:29 PM CSTSevere Thunderstorm WarningTAEEscambia, Santa Rosa61 min
Mar 16, 3:55 PM CSTFlash Flood WarningTAEEscambia, Santa Rosa5 hr
Mar 16, 3:55 PM CSTFlash Flood WarningTAEOkaloosa5 hr

Nearby

Severe Thunderstorm Warnings in Florida, 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.