Alert archive / Florida / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 13, NWS Jacksonville, FL
NWS Jacksonville, FL issued this severe thunderstorm warning at Apr 28, 1990, 4:56 PM EDT for Putnam County, Florida. It was in force for 34 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Apr 28, 1990, 4:56 PM EDT (20:56 UTC)
- Expired
- Apr 28, 1990, 5:30 PM EDT
- In force
- 34 min
- Issued by
- NWS Jacksonville, FL
- Area
- Whole counties
County Putnam County, FL
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 28, 5:16 PM EDT | Thunderstorm Wind 0 | Putnam, FL |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Jacksonville, FL (KAYS), launched 12:00Z, 8.9 hours before the alert went out and 99 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.
- Mixed-layer CAPE
- 9 J/kg
- Mixed-layer CIN
- -128 J/kg
- Mixed-layer LCL
- 866 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 130 m²/s²
- 0-3 km storm-relative helicity
- 147 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KJAX 282056 SVRJAX FLC107-282130- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE JACKSONVILLE FL 456 PM EDT SAT APR 28 1990 THE NATIONAL WEATHER SERVICE IN JACKSONVILLE FL HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 530 PM EDT IN NORTH FLORIDA ...NORTHEASTERN PUTNAM COUNTY AT 456 PM EDT WEATHER RADAR INDICATED A SEVERE THUNDERSTORM IN NORTHEAST PUTNAM COUNTY NORTHEAST OF PALATKA MOVING EAST AT 30 MILES AN HOUR. 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, Apr 28, 12:09 PM EDT, 4 hours 47 minutes before
FLZ007-009-281800- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSONVILLE FL 1210 PM EDT SAT APR 28 1990 AT NOON EDT NATIONAL WEATHER SERVICE RADAR SHOWED THUNDERSTORMS WITH HEAVY RAIN FROM MAYO FLORIDA NORTHEAST THROUGH LIVE OAK TO JASPER IN HAMILTON COUNTY. THIS AREA OF THUNDERSTORMS IS MOVING EAST AT 25 TO 30 MILES AN HOUR. THESE THUNDERSTORMS WILL PRODUCE STRONG GUSTY WINDS..LOCALLY HEAVY RAIN DANGEROUS LIGHTNING AND POSSIBLE HAIL AS THEY MOVE THROUGH THE AREA FOR THE NEXT ONE TO TWO HOURS. REMEMBER...MORE PEOPLE ARE KILLED BY LIGHTNING IN FLORIDA THAN ANY OTHER STATE IN THE COUNTRY. WHEN A THUNDERSTORM THREATENS TRY TO GET INSIDE A HOME OR LARGE BUILDING. IF YOU DO NOT HAVE TIME TO REACH A SAFE BUILDING OR CAR...AVOID OPEN FIELDS SUCH AS GOLF COURSES... BASEBALL FIELDS...BEACHES...OR FISHING FROM A SMALL BOAT OR PIERS. STAY TUNED TO NOAA WEATHER RADIO AND OTHER NEWS MEDIA FOR FURTHER STATEMENTS CONCERNING THESE THUNDERSTORMS THAT MAY BE NEEDED LATER TODAY AS THESE THUNDERSTORMS CONTINUE PUSHING THEIR WAY EAST TO THE COAST.
Special weather statement, Apr 28, 2:17 PM EDT, 2 hours 39 minutes before
FLZ007-008-009-281830
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
216 PM EDT SAT APR 28 1990
...TORNADO WATCH NUMBER 175 IS IN EFFECT FOR PERSONS
IN ALACHUA...BRADFORD...CLAY...DUVAL...NASSAU...LAFAYETTE...
GILCHRIST...SUWANNEE...HAMILTON...COLUMBIA...UNION...BAKER COUNTIES OF
FLORIDA UNTIL 6PM EDT.
AT 215 PM EDT WEATHER RADAR INDICATED THUNDERSTORMS MOVING INTO NORTHWEST
NASSAU COUNTY...WESTERN DUVAL...TO JUST WEST OF GAINESVILLE.
THE STRONGEST STORMS WERE MOVING THROUGH NORTHWEST NASSAU COUNTY WHERE
STRONG GUSTY WINDS...FREQUENT LIGHTNING...HEAVY RAIN...AND HAIL ARE LIKLEY
THE NEXT HALF HOUR. THUNDERSTORMS SHOULD BE MOVING THROUGH JACKSONVI5LLE
WITHIN THE HOUR.
STAY TUNED FOR FURTHER STATEMENTS OR WARNINGS.Special weather statement, Apr 28, 3:31 PM EDT, 1 hour 25 minutes before
FLZ007-008-009-282030
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
328 PM EDT SAT APR 28 1990
...TORNADO WATCH NUMBER 175 IS IN EFFECT FOR PERSONS
IN ALACHUA...BRADFORD...CLAY...DUVAL...NASSAU...LAFAYETTE...
GILCHRIST...SUWANNEE...HAMILTON...COLUMBIA...UNION...BAKER COUNTIES OF
FLORIDA AND THE ADJACENT COASTAL WATERS UNTIL 6PM EDT.
AT 325 PM EDT WEATHER RADAR INDICATED THUNDERSTORMS OCCURRING FROM JUST
SOUTH OF ST SIMONS ISLAND GEORGIA TO JACKSONVILLE AND FURTHER
SOUTHWEST TO CECIL AND GAINESVILLE. THE STRONGEST STORMS WERE
OCCURRING JUST SOUTH OF CECIL AND NEAR KINGSLEY LAKE IN CLAY COUNTY.
THE STORMS ARE MOVING TO THE NORTHEAST AT 30 MILES AN HOUR AND WILL
LIKELY PRODUCE STRONG GUSTY WINDS...DANGEROUS LIGHTNING...HEAVY RAIN...
AND POSSIBLE HAIL AS THEY MOVE THROUGH THE AREA THE NEXT COUPLE OF HOURS.
SO FAR NO SEVERE WEATHER HAS BEEN REPORTED TO THE WEATHER OFFICE...
HOWEVER PERSONS IN AND CLOSE TO THE WATCH AREA ARE URGED TO STAY TUNED
AND KEEP ABREAST OF THE SITUATION AND BE PREPARED TO ACT QUICKLY
IF A WARNING IS ISSUED.
MARINE INTERSTS OPERATING IN THE COASTAL WATERS FROM AMELIA ISLAND
TO ST AUGUSTINE SHOULD BE ALERT FORz THREATENING WEATHER AND BE PREPARED
TO SEEK SAFE HARBOUR AS THESE THUNDERSTORMS WILL MOVE OFFSHORE THE NEXT
SEVERAL HOURS.The office that day
Everything else NWS Jacksonville, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 28, 1:29 PM EDT | Severe Thunderstorm Warning | JAX | Baker | 46 min |
| Apr 28, 3:58 PM EDT | Severe Thunderstorm Warning | JAX | Clay | 47 min |
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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.