Alert archive / Florida / Severe Thunderstorm Warnings in 1991

Severe Thunderstorm Warning 2, NWS Melbourne, FL

March 2, 1991Marion County, Florida

NWS Melbourne, FL issued this severe thunderstorm warning at Mar 2, 1991, 3:15 PM EST for Marion County, Florida. It was in force for 2 hr.

The area

The counties it named.

The facts

Issued
Mar 2, 1991, 3:15 PM EST (20:15 UTC)
Expired
Mar 2, 1991, 5:15 PM EST
In force
2 hr
Issued by
NWS Melbourne, FL
Area
Whole counties

County Marion County, FL

The nearest sounding before it

Jacksonville, FL (KAYS), launched 12:00Z, 8.3 hours before the alert went out and 148 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, Jacksonville, FL at 12:00Z on 1991-03-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Jacksonville, FL at 12:00Z on 1991-03-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -564 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
744 m above ground
0-6 km bulk shear
71 kt
0-1 km storm-relative helicity
-564 m²/s²
0-3 km storm-relative helicity
-546 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KDAB 022019 RRA
SVRDAB
FLC083-022215-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DAYTONA BEACH FL
315 PM EST SAT MAR 2 1991
 
THE NATIONAL WEATHER SERVICE IN DAYTONA BEACH HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNU
5EST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTH CENTRAL FLORIDA
 
   ...MARION COUNTY
 
AT 3155EST...A LINE OF SEVERE THUNDERSTORMS WAS MOVING ACROSS
NORTHCENTRAL PART OF MARION COUNTY...AND ANOTHER LINE OF SEVERE
THUNDERSTORMS WERE MOVING INTO THE WEST END OF MARION COUNTY. THESE
THUNDERSTORMS ARE MOVING EAST AT 45 MPH.
 
 
IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A
STRONG BUILDING.  DAMAGING 2WIND...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, Mar 2, 2:55 PM EST, 20 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DAYTONA BEACH FL
250 PM EST SAT MAR 2 1991

.......STRONG THUNDERSTORMS ARE MOVING INTO MARION COUNTY......

THUNDERSTORMS WITH VERY HEAVY RAINFALL..FREQUENT LIGHTNING..STRONG
GUSTY WINDS AND POSSIBLY SOME HAIL OR MOVING INTO THE NORTHWEST PART OF
MARION COUNTY IN NORTHCENTRAL FLORIDA.

THESE THUNDERSTORMS ARE MOVING RAPIDLY EASTWARD AT ABOUT 45 MPH AND WILL
CONTINUE MOVING ACROSS MARION COUNTY FOR THE NEXT 1 TO 2 HOURS.

PLEASE LISTEN FOR FURTHER STATEMANTS OR WARNINGS CONCERNING THESE
THUNDERSTORMS.

REPEATING...THE TORNADO DRILL IS TERMINATED AT THIS TIME.
Special weather statement, Mar 2, 2:57 PM EST, 18 minutes before
SPECIAL WEATHER STATEMENT...CORRECTION
NATIONAL WEATHER SERVICE DAYTONA BEACH FL
250 PM EST SAT MAR 2 1991

.......STRONG THUNDERSTORMS ARE MOVING INTO MARION COUNTY......

THUNDERSTORMS WITH VERY HEAVY RAINFALL..FREQUENT LIGHTNING..STRONG
GUSTY WINDS AND POSSIBLY SOME HAIL OR MOVING INTO THE NORTHWEST PART OF
MARION COUNTY IN NORTHCENTRAL FLORIDA.

THESE THUNDERSTORMS ARE MOVING RAPIDLY EASTWARD AT ABOUT 45 MPH AND WILL
CONTINUE MOVING ACROSS MARION COUNTY FOR THE NEXT 1 TO 2 HOURS.

PLEASE LISTEN FOR FURTHER STATEMANTS OR WARNINGS CONCERNING THESE
THUNDERSTORMS.

Nearby

Severe Thunderstorm Warnings in Florida, 1991Every severe thunderstorm warning in 1991

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.