Alert archive / Florida / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 33, NWS Melbourne, FL
NWS Melbourne, FL issued this severe thunderstorm warning at Jul 14, 1990, 3:45 PM EDT for Saint Lucie County, Florida. It was in force for 60 min.
The area
The counties it named.
The facts
- Issued
- Jul 14, 1990, 3:45 PM EDT (19:45 UTC)
- Expired
- Jul 14, 1990, 4:45 PM EDT
- In force
- 60 min
- Issued by
- NWS Melbourne, FL
- Area
- Whole counties
County Saint Lucie 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
Cape Canaveral, FL (KXMR), launched 12:00Z, 7.8 hours before the alert went out and 121 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
- 1340 J/kg
- Mixed-layer CIN
- -35 J/kg
- Mixed-layer LCL
- 948 m above ground
- 0-6 km bulk shear
- 6 kt
- 0-1 km storm-relative helicity
- 18 m²/s²
- 0-3 km storm-relative helicity
- 34 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 KPBI 141946 SVRPBI FLC111-142045- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE WEST PALM BEACH FL 345 PM EDT SAT JUL 14 1990 THE NATIONAL WEATHER SERVICE IN WEST PALM BEACH HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 445 PM EDT FOR THE FOLLOWING LOCATIONS... IN SOUTHEAST FLORIDA ...CENTRAL AND NORTH CENTRAL ST.LUCIE COUNTY AND THE ADJACANT WATERS OF THE SOUTHEAST FLORIDA COAST AT 345PM EDT...WEATHER SERVICE RADAR INDICATED A SEVERE THUNDERSTORM OVER CENTRAL ST. LUCIE COUNTY SOUTHWEST OF FT. PIERCE. THIS THUNDER STORM IS MOVING TO THE NORTH AT 15 MILES AN HOUR. RESIDENTS OF CENTRAL AND NORTH CENTRAL ST. LUCIE COUNTY SHOULD SEEK SAFE SHELTER FROM THIS STORM DURING THE NEXT HOUR. THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH YOU SHOULD PREPARE FOR DAMAGING WIND IN EXCESS OF 55 MPH...LARGE HAIL...AND DEADLY LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...b PREFERABLY INSIDE A STRONG BUILDING BUT STAY AWAY FROM WINDOWS. 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, Jul 14, 11:41 AM EDT, 4 hours 4 minutes before
FLZ017-011-016-012-141645- SPECIAL EAST CENTRAL FLORIDA WEATHER UPDATE NATIONAL WEATHER SERVICE MELBOURNE FL 1137 AM EDT SAT JUL 14 1990 ...STRONG THUNDERSTORMS IN EAST CENTRAL FLORIDA AND THE ADJACENT COASTAL WATERS... ...A MARINE WARNING REMAINS IN EFFECT UNTIL 1230 PM FOR THE COASTAL WATERS OF FLAGLER AND VOLUSIA COUNTIES... AT 1135 AM EDT NATIONAL WEATHER SERVICE RADARS INDICATED SEVERAL STRONG THUNDERSTORMS OVER EAST CENTRAL FLORIDA...MAINLY FROM DISNEY...TO ORLANDO...TO NEAR SANFORD. OTHER STRONG THUNDERSTORMS WERE OFF THE COASTAL WATERS OF FLAGLER AND VOLUSIA COUNTIES. A MARINE WARNING IS IN EFFECT FOR THE COASTAL WATERS OF THESE COUNTIES AS THUNDERSTORMS PRODUCED 41 MPH WIND GUSTS AT THE DAYTONA WEATHER OFFICE AS THEY MOVED OFFSHORE. THE WARNING IS IN EFFECT UNTIL 1230 PM EDT. THE STORMS WERE MOVING NORTHEAST AT 25 MPH. DURING THE REMAINDER OF THIS MORNING AND THROUGH THE AFTERNOON STRONG THUNDERSTORMS WILL LIKELY EFFECT EAST CENTRAL FLORIDA. PEOPLE SHOULD BE ALERT TO THREATENING WEATHER AND BE READY TO HEAD TO ADEQUATE SHELTER IF THE NEED ARISES OR A WARNING IS ISSUED. THUNDERSTORMS TODAY HAVE THE CAPABILITY TO BECOME QUITE STRONG. PERIODS OF TORRENTIAL' RAIN MAY CAUSE BRIEF FLOODING OF ROADWAYS AND POOR DRAINAGE AREAS. ALSO WINDS NEAR THESE STORMS WILL BE VERY GUSTY. ANYONE WITH MARINE INTERESTS SHOULD ALSO TAKE CAUTION.
Special weather statement, Jul 14, 12:53 PM EDT, 2 hours 52 minutes before
FLZ017-011-016-012-141800- SPECIAL EAST CENTRAL FLORIDA WEATHER UPDATE NATIONAL WEATHER SERVICE MELBOURNE FL 1251 PM EDT SAT JUL 14 1990 ...STRONG THUNDERSTORMS WERE MOVING INTO OSCEOLA COUNTY... AT 1245 PM EDT NATIONAL WEATHER SERVICE RADARS SHOWED STRONG THUNDERSTORMS MOVING INTO OSCEOLA COUNTY FROM THE WEST AND SOUTHWEST. THUNDERSTORMS WERE QUITE STRONG IN POLK COUNTY LAST HOUR AND A SEVERE THUNDERSTORM WARNING WAS ISSUED FOR THAT COUNTY AND REMAINED IN EFFECT UNTIL 1230 PM. THESE STORMS WERE MOVING NORTHEAST AT 25 MPH. PEOPLE IN OSCEOLA COUNTY SHOULD BEGIN TO PREPARE FOR THESE STORMS. PERIODS OF VERY HEAVY RAIN...STRONG GUSTY WINDS...AND SMALL HAIL ARE POSSIBLE. ALSO...LIGHTNING DATA HAS SHOWN AN INCREASE IN THE NUMBER OF STRIKES ASSOCIATED WITH THE POLK COUNTY STORMS DURING THE PAST HOUR. PLEASE KEEP IN MIND THE HAZARDS OF LIGHTNING. IF A THUNDERSTORM IS OCCURRING IN YOUR AREA...HEAD TO SAFE SHELTER. SHOWERS AND TuHUNDERSTORMS WILL CONTINUE TO DEVELOP ACROSS ALL OF CENTRAL FLORIDA AND THE ADJACENT COASTAL WATERS TODAY. EVERYONE IN CENTRAL FLORIDA SHOULD REMAIN INFORMED OF THE CURRENT WEATHER SITUATION.
Special weather statement, Jul 14, 2:11 PM EDT, 1 hour 34 minutes before
FLZ017-011-016-012-141915- SPECIAL EAST CENTRAL FLORIDA WEATHER UPDATE NATIONAL WEATHER SERVICE MELBOURNE FL 210 PM EDT SAT JUL 14 1990 ...STRONG THUNDERSTORMS MOVING THROUGH BREVARD AND INDIAN RIVER COUNTIES TOWARDS THE COAST... AT 205 PM EDT NATIONAL WEATHER SERVICE RADARS INDICATED STRONG THUNDERSTORMS FROM 20 MILES SOUTHWEST OF FELLSMERE TO JUST WEST OF MELBOURNE TO NEAR COCOA...TO THE COASTAL WATERS OFF TITUSVILLE. MOVEMENT WAS NORTHEAST AT 25 MPH. THESE STORMS WERE PRODUCING VERY HEAVY RAIN. ALSO...STONG GUSTY WINDS WERE LIKELY AHEAD OF THE STORMS. PEOPLE IN BREVARD AND INDIAN RIVER COUNTIES SHOULD REMAIN ALERT TO THREATENING WEATHER AS THESE STORMS PASS. GIVEN THE NORTHEAST MOVEMENT...THE THUNDERSTORMS WILL SOON BE EFFECTING THE COASTAL AREAS AS WELL. THOSE WITH MARINE INTEREST SHOULD TAKE CAUTION AND PREPARE FOR A POSSIBLE MARINE WARNING. BOATERS SHOULD WEAR FLOTATION DEVICES. SHOWERS AND THUNDERSTORMS WERE OVER MUCH OF EAST CENTRAL FLORIDA AND WILL CONTINUE INTO TONIGHT.
Special weather statement, Jul 14, 3:21 PM EDT, 24 minutes before
FLZ017-142015- SPECIAL EAST CENTRAL FLORIDA WEATHER UPDATE NATIONAL WEATHER SERVICE MELBOURNE FL 320 PM EDT SAT JUL 14 1990 ...STRONG THUNDERSTORMS WERE OVER THE COASTAL WATERS OF BREVARD AND INDIAN RIVER COUNTIES... AT 315 PM EDT NATIONAL WEATHER SERVICE RADARS INDICATED STRONG THUNDERSTORMS OVER THE COASTAL WATERS FROM 25 MILES NORTHEAST OF TITUSVILLE...TO 5 MILES OFF MELBOURNE BEACH...TO VERO BEACH. MOVEMENT WAS NORTHEAST AT 25 MPH. MARINERS SHOULD KEEP INFORMED OF THE LATEST WEATHER. IF THREATENING WEATHER APPROACHES YOUR LOCATION...MOVE QUICKLY TO SAFE HARBOR. BOATERS SHOULD WEAR FLOTATION DEVICES SINCE GUSTY WINDS ARE CERTAIN WI THESE STORMS. VERO BEACH REPORTED A WIND GUST OF 30 KTS AS A THUNDERSTORM APPROACHED THAT AREA AROUND 3PM.
Special weather statement, Jul 14, 3:23 PM EDT, 22 minutes before
FLZ017-142015- SPECIAL EAST CENTRAL FLORIDA WEATHER UPDATE NATIONAL WEATHER SERVICE MELBOURNE FL 320 PM EDT SAT JUL 14 1990 ...STRONG THUNDERSTORMS WERE OVER THE COASTAL WATERS OF BREVARD AND INDIAN RIVER COUNTIES... AT 315 PM EDT NATIONAL WEATHER SERVICE RADARS INDICATED STRONG THUNDERSTORMS OVER THE COASTAL WATERS FROM 25 MILES NORTHEAST OF TITUSVILLE...TO 5 MILES OFF MELBOURNE BEACH...TO VERO BEACH. MOVEMENT WAS NORTHEAST AT 25 MPH. MARINERS SHOULD KEEP INFORMED OF THE LATEST WEATHER. IF THREATENING WEATHER APPROACHES YOUR LOCATION...MOVE QUICKLY TO SAFE HARBOR. BOATERS SHOULD WEAR FLOTATION DEVICES SINCE GUSTY WINDS ARE CERTAIN WITH THESE STORMS. VERO BEACH REPORTED A WIND GUST OF 30 KTS AS A THUNDERSTORM APPROACHED THAT AREA AROUND 3PM.
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; the sounding from the Mesonet's radiosonde archive.