Alert archive / Florida / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 49, NWS Jacksonville, FL

October 3, 1992Clay County, Saint Johns County, Florida

NWS Jacksonville, FL issued this severe thunderstorm warning at Oct 3, 1992, 7:08 PM EDT for Clay County, Saint Johns County, Florida. It was in force for 67 min.

The area

The counties it named.

The facts

Issued
Oct 3, 1992, 7:08 PM EDT (23:08 UTC)
Expired
Oct 3, 1992, 8:15 PM EDT
In force
67 min
Issued by
NWS Jacksonville, FL
Area
Whole counties

Counties Clay County, FL, Saint Johns County, FL

The nearest sounding before it

Jacksonville, FL (KAYS), launched 12:00Z, 11.1 hours before the alert went out and 62 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 1992-10-03Temperature 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 1992-10-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 73 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
603 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
73 m²/s²
0-3 km storm-relative helicity
298 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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, Oct 3, 4:47 PM EDT, 2 hours 21 minutes before
FLZ008-007-009-032245-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
446 PM EDT SAT OCT 3 1992

...TORNADO WATCH NUMBER 860 IS IN EFFECT UNTIL 9PM EDT...

...LOCALLY HEAVY RAINS CONTINUE IN NORTHEAST FLORIDA...

AT 445 PM EDT NATIONAL WEATHER SERVICE RADARS INDICATED A LARGE AREA
OF RAIN WITH IMBEDDED THUNDERSTORMS OCCURRING FROM SOUTH CENTRAL
GEORGIA TO MOST OF THE FLORIDA PENINSULA. THUNDERSTORMS WITH HEAVY
RAIN WERE LOCATED JUST SOUTH OF INTERLACHEN NEAR THE PUTNAM COUNTY
MARION COUNTY LINE. THESE STORMS HAVE A HISTORY OF PRODUCING A
POSSIBLE TORNADO NEAR OCALA AT 3PM EDT. ANOTHER STORM WAS LOCATED NEAR
OCALA. MOVEMENT WAS NORTHEAST AT 25 MPH.

THE THUNDERSTORMS WILL BE ACCOMPANIED BY LOCALLY HEAVY
RAINS...FREQUENT LIGHTNING...GUSTY WINDS...AND POSSIBLE HAIL AS THEY
MOVE THROUGH PUTNAM COUNTY DURING THE NEXT HOUR. THEY WILL ALSO LIKELY
RESULT IN FLOODING OF SMALL CREEKS...DRAINAGE DITCHES...UNDERPASSES
FOR THE NEXT SEVERAL HOURS.

SO FAR RAINFALL TOTALS HAVE BEEN VERY CONSISTANT RANGING FROM 1.5
INCHES NEAR MIDDLEBURG...2.29 INCHES AT JACKSONVILLE INTERNATIONAL
AIRPORT...2.10 INCHES AT ST AUGUSTINE...TO 4.10 INCHES AT JACKSONVILLE
BEACH...AND AROUND 4 INCHES IN GAINESVILLE. THIS HEAVY RAIN RESULTED
LOCALIZED STREET FLOODING THROUGHOUT THE AREA. BLACK CREEK AT
MIDDLEBURG HAS BEEN REPORTED TO HAVE RISEN AND WILL BE CONTINUED TO BE
MONITORED SINCE MORE HEAVY RAIN IS POSSIBLE THIS EVENING.

AS A REMINDER...A TORNADO WATCH MEANS THAT CONDITIONS ARE FAVORABLE
FOR TORNADOES AND RESIDENTS IN NORTH AND NORTHEAST FLORIDA SHOULD KEEP
ABREAST OF THE WEATHER AND BE PREPARED TO TAKE QUICK ACTION IF
WARNINGS ARE ISSUED OR SEVERE WEATHER IS SIGNHTED. SHOWERS AND
THUNDERSTORMS ARE LIKELY TO CONTINUE INTO THIS EVENING.
Special weather statement, Oct 3, 6:45 PM EDT, 23 minutes before
FLZ008-007-009-040045-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
643 PM EDT SAT OCT 3 1992

...TORNADO WATCH NUMBER 860 IN EFFECT FOR ALL OF NORTH AND NORTHEAST
FLORIDA UNTIL 9PM EDT...

...MORE LOCALLY HEAVY RAINS MOVING INTO THE AREA...

AT 643 PM EDT WEATHER RADARS SHOWED A LARGE AREA OF RAIN THAT COVERED
OF SOUTH GEORGIA AND THE FLORIDA PENINSULA. HEAVY RAIN HAD MOVED INTO
DOWNTOWN JACKSONVILLE. THUNDERSTORMS WITH HEAVY RAIN WERE OCCURRING
JUST WEST OF PALATKA AND ALSO HAD MOVED IN FROM THE GULF NORTHEAST OF
CEDAR KEY AND WERE JUST WEST OF NEWBERRY IN ALACHUA COUNTY. MOVEMENT
WAS NORTHEAST AT 20 MPH. THESE STORMS WILL BE ACCOMPANIED BY HEAVY
RAINS...FREQUENT LIGHTNING...GUSTY WINDS...AND POSSIBLE HAIL AS THEY
MOVE THROUGH PUTNAM...SOUTHWESTERN ST JOHNS COUNTY AS WELL AS
GILCHRIST...COLUMBIA...AND ALACHUA COUNTIES DURING THE NEXT HOUR.

RAINFALL TOTALS OF 2 TO 4 INCHES TODAY IN COMBINATION WITH THE
CONTINUOUS RAINS OF THIS AFTERNOON AND EVENING HAS RESULTED IN
NUMEROUS REPORTS OF FLOODING. STREET FLOODING HAS BEEN REPORTED IN ST
JOHNS COUNTY...THE BEACHES...IN GAINESVILLE... AND NUMEROUS REPORTS OF
ROADS FLOODED IN CLAY COUNTY. THE RIVER GUAGE READING AT BLACK CREEK
AT MIDDLEBURG WAS 7.5 FEET AND RISING. THE CREEK WILL CONTINUED TO BE
MONITORED THROUGHOUT THE EVENING AS MORE HEAVY RAIN IS LIKELY.

PERSONS THROUGHOUT NORTHEAST FLORIDA ARE URGED TO EXERCISE CAUTION AND
TO AVOID FLOODED AREAS OR AREAS PRONE TO FLOODING. ALSO BE PREPARED TO
TAKE QUICK ACTION IF WARNINGS ARE ISSUED OR SEVERE WEATHER IS SIGHTED.

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 3, 5:45 PM EDTTornado WarningJAXAlachua, Putnam60 min
Oct 3, 6:53 PM EDTTornado WarningJAXPutnam52 min

Nearby

Severe Thunderstorm Warnings in Florida, 1992Every severe thunderstorm warning in 1992

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.