Alert archive / Florida / Tornado Warnings in 1990
Tornado Warning 1, NWS Jacksonville, FL
NWS Jacksonville, FL issued this tornado warning at Feb 22, 1990, 4:37 PM EST for Duval County, Florida. It was in force for 38 min.
The area
The counties it named.
The facts
- Issued
- Feb 22, 1990, 4:37 PM EST (21:37 UTC)
- Expired
- Feb 22, 1990, 5:15 PM EST
- In force
- 38 min
- Issued by
- NWS Jacksonville, FL
- Area
- Whole counties
County Duval 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
Jacksonville, FL (KAYS), launched 12:00Z, 9.6 hours before the alert went out and 19 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
- 262 J/kg
- Mixed-layer CIN
- -10 J/kg
- Mixed-layer LCL
- 581 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 200 m²/s²
- 0-3 km storm-relative helicity
- 177 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.7
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KJAX 222144 TORJAX FLC031-222215- BULLETIN - EBS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE JACKSONVILLE FLORIDA 437 PM EST THU FEB 22 1990 THE NATIONAL WEATHER SERVICE IN JACKSONVILLE FLORIHAS ISSUED A TORNADO WARNING EFFECTIVE UNTIL 515 PM EST IN NORTHEAST FLORIDA ...DUVAL COUNTY AT 435 PM EST...A PILOT REPORT OF TWO FUNNEL CLOUDS WAS REPORTED 3 MILES EAST OF JACKSONVILLE NAVAL AIR STATION. THE THUNDERSTORMS IN THIS AREA ARE MOVING EAST AT 20 MILES AN HOUR. ANOTHER TORNADO REPORT WAS RECEIVED AT 432 PM EST ON A1A NEAR MAYPORT...THIS TORNADO HAS SINCE DISSIPATED. IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED BUILDING. AS A LAST URESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.
What forecasters said that day
The local office's own words before this tornado 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, Feb 22, 3:27 PM EST, 1 hour 10 minutes before
FLZ000-222130- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSONVILLE FL 225 PM EST THU FEB 22 1990 AT 220 PM EST WEATHER INDICATED A LARGE AREA OF THUNDERSTORMS AND SHOWERS ACROSS NORTHEAST FLORIDA. STRONG THUNDERSTORMS ARE INDICATED IN WESTERN NASSAU COUNTY AND IN THE STAKE AREA. THUNDERSTORMS ARE MOVING EAST AT 20 MILES AN HOUR. THE THUNDERSTORMS MAY BE ACCOMPANIED BY PERIODS OF LOCALLY HEAVY RAIN...GUSTY WINDS...FREQUENT LIGHTNING STRIKES...AND POSSIBLY SMALL HAIL. THUNDERSTORMS PRODUCING LOCALLY HEAVY RAINS WILL CAUSE TEMPORARY FLOODING OF SMALL CREEKS...LOW LYING AREAS...DRAINAGE DITCHES...AND UNDERPASSES.
Special weather statement, Feb 22, 4:34 PM EST, 3 minutes before
FLZ000-222230- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSONVILLE FL 435 PM EST THU FEB 22 1990 AT 430 PM EST NATIONAL WEATHER SERVICE RADARS INDICATED STRONG THUNDERSTORMS MOVING INTO THE COASTAL AREAS OF NORTHEAST FLORIDA AND SOUTHEAST GEORGIA. THESE THUNDERSTORMS HAVE PRODUCED HEAVY RAINFALL AND WIND GUSTS UP TO 49 MILES AN HOUR IN THE LAST 20 MINUTES. MARINE INTERESTS ON THE ST. JOHNS RIVER...INTERCOASTAL WATERWAY AND OFFSHORE CAN EXPECT STRONG GUSTY WINDS WITHIN THE NEXT 15 MINUTES. THUNDERSTORMS ARE MOVING EAST AT 20 MILES AN HOUR. THE THUNDERSTORMS MAY BE ACCOMPANIED BY PERIODS OF LOCALLY HEAVY RAIN...GUSTY WINDS...FREQUENT LIGHTNING STRIKES...AND POSSIBLY SMPALL HAIL. THUNDERSTORMS PRODUCING LOCALLY HEAVY RAINS WILL CAUSE TEMPORARY FLOODING OF SMALL CREEKS...LOW LYING AREAS...DRAINAGE DITCHES...AND UNDERPASSES.
Nearby
Tornado Warnings in Florida, 1990Every tornado warning in 1990Tornadoes 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.