Alert archive / Florida / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 3, NWS Melbourne, FL

January 16, 1993Okeechobee County, Florida

NWS Melbourne, FL issued this severe thunderstorm warning at Jan 16, 1993, 7:26 AM EST for Okeechobee County, Florida. It was in force for 64 min.

The area

The counties it named.

The facts

Issued
Jan 16, 1993, 7:26 AM EST (12:26 UTC)
Expired
Jan 16, 1993, 8:30 AM EST
In force
64 min
Issued by
NWS Melbourne, FL
Area
Whole counties

County Okeechobee County, FL

The radar

The Melbourne radar (KMLB), 84 km from the middle of the area, began a volume at 12:26 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Tampa Bay, FL (KTBW), launched 12:00Z, 0.4 hours before the alert went out and 153 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, Tampa Bay, FL at 12:00Z on 1993-01-16Temperature 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, Tampa Bay, FL at 12:00Z on 1993-01-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -335 square meters per square second.1939587897117Sfc1 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
665 m above ground
0-6 km bulk shear
76 kt
0-1 km storm-relative helicity
-335 m²/s²
0-3 km storm-relative helicity
-4 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 KPBI 161239 COR
SVRPBI
FLC093-161330-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING...CORRECTION
NATIONAL WEATHER SERVICE WEST PALM BEACH FL
726 AM EST SAT JAN 16 1993

THE NATIONAL WEATHER SERVICE IN WEST PALM BEACH HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  830 AM EST
FOR THE FOLLOWING LOCATIONS......

IN SOUTH FLORIDA

   ...OKEECHOBEE COUNTY

AT 725 AM EST WEATHER RADAR INDICATED A LINE OF THUNDERSTORMS...A FEW
SEVERE THUNDERSTOMS EMBEDDED WITHIN THE LINE...FROM COCOA BEACH
SOUTHWESTWARD TO JUST NORTH OF FORT MYERS.

THE LINE OF THUNDESTORMS WAS MOVING TO THE SOUTHEST AT 30 TO 35 MILES AN
HOUR AND WILL BE MOVING INTO WESTERN OKEECHOBEE COUNTY WITHIN THE NEXT
30 MINUTES.

PERSONS IN OKEECHOBEE COUNTY AND MARINE INTREST ON LAKE OKEECHOBEE
SHOULD BE READY TO TAKE IMMEDIATE SHELTER SHOULD THREATENING WEATHER
APPROACH. THIS LINE OF THUNDERSTORMS HAS ALREADY PRODUCD DAMAGE IN
COUNTIES TO THE WEST OF OKEECHOBEE COUNTY.


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.

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.



NNNN

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, Jan 16, 6:00 AM EST, 1 hour 26 minutes before
FLZ017-011-016-161200-

SPECIAL EAST CENTRAL FLORIDA WEATHER UPDATE
NATIONAL WEATHER SERVICE MELBOURNE FL
600 AM EST SAT JAN 16 1993

...STRONG THUNDERSTORMS MOVING ACROSS EAST CENTRAL FLORIDA...

AT 6 AM...A BAND OF THUNDERSTORMS WITH VERY HEAVY RAIN WAS DETECTED
BY RADAR FROM THE TAMPA AREA TO NEAR ORLANDO AND OFFSHORE DAYTONA
BEACH. THE STORMS WERE MOVING EAST AT 30 MPH AND WILL BE MOVING
ACROSS ORANGE AND OSCEOLA COUNTIES DURING THE NEXT HOUR. STRONG
WIND GUSTS WILL OCCUR AS THE STORMS PASS.

A TORNADO WATCH IS IN EFFECT FOR THESE AREAS...SO PEOPLE SHOULD
BE PREPARED TO SEEK SHELTER AS THE FAST MOVING STORMS MOVE INTO
THE AREA. SEVERAL REPORTS OF TORNADOES HAVE ALREADY BEEN RECEIVED IN
THE TAMPA BAY AREA. STAY TUNED TO NOAA WEATHER RADIO OR OTHER RELIABLE
MEDIA FOR FURTHER STATEMENTS AND POSSIBLE WARNINGS.
Special weather statement, Jan 16, 6:43 AM EST, 43 minutes before
FLZ006>017-020-161225-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE DAYTONA BEACH FL
630 AM EST SAT JAN 16 1993

...A TORNADO WATCH IS IN EFFECT FOR VOLUSIA COUNTY INCLUDING THE
ADJACENT COASTAL WATERS UNTIL 1000 AM EST...

AT 625 AM EST...NATIONAL WEATHER SERVICE RADAR DETECTED SCATTERED
THUNDERSTORMS THAT EXTENDED FROM JUST NORTH OF LAKE WALES TO DELAND
TO 20 MILES OFFSHORE EDGEWATER.

THESE THUNDERSTORMS WERE WITHIN A LARGE AREA OF RAIN THAT COVERED
MUCH OF CENTRAL AND A PORTION OF NORTH FLORIDA FROM WAUCHULA TO
JUST NORTH OF GAINESVILLE...EASTWARD TO THE COAST AND ADJACENT COASTAL
WATERS BETWEEN JACKSONVILLE BEACH AND CAPE CANAVERAL.

MOVEMENT WAS EAST AT 30 M6PH.

THE TORNADO WATCH IS ALSO IN EFFECT FOR SOUTHWEST FLORIDA AND MUCH OF
THE REST OF CENTRAL FLORIDA AND THE ADJACENT COASTAL WATERS.

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 16, 6:56 AM ESTSevere Thunderstorm WarningMLBBrevard64 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; radar from the NEXRAD Level II archive.