Alert archive / Florida / Severe Thunderstorm Warnings in 2004
Severe Thunderstorm Warning 96, NWS Miami, FL
NWS Miami, FL issued this severe thunderstorm warning at Aug 31, 2004, 4:28 PM EDT for Collier County, Florida. It was in force for 47 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 31, 2004, 4:28 PM EDT (20:28 UTC)
- Expired
- Aug 31, 2004, 5:15 PM EDT
- In force
- 47 min
- Issued by
- NWS Miami, FL
- Area
- Counties, with a storm outline in the text
County Collier County, FL
The radar
The Miami radar (KAMX), 68 km from the middle of the area, began a volume at 20:30 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.
Did it verify
Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The nearest sounding before it
Miami, FL (KMFL), launched 12:00Z, 8.5 hours before the alert went out and 73 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
- 2895 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 765 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- -46 m²/s²
- 0-3 km storm-relative helicity
- -22 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS52 KMFL 312028 SVRMIA FLC021-312115- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MIAMI FL 428 PM EDT TUE AUG 31 2004 THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHEASTERN COLLIER COUNTY IN SOUTH FLORIDA. * UNTIL 515 PM EDT * AT 428 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STORM CAPABLE OF PRODUCING DIME SIZE HAIL...AND DAMAGING WINDS 10 MILES EAST OF MONROE STATION...MOVING WEST AT 15 MPH. * THE STORM WILL AFFECT... DADE-COLLIER TRAINING AIRPORT. OASIS RANGER STATION. MONROE STATION. SEVERE THUNDERSTORMS CAN PRODUCE DAMAGING WINDS IN EXCESS OF 60 MPH...LARGE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAINFALL. STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED. FREQUENT LIGHTNING IS OCCURRING WITH THIS THUNDERSTORM. IF OUTDOORS...STAY AWAY FROM ISOLATED HIGH OBJECTS SUCH AS TREES AND AVOID WATER. MOVE INDOORS OR INSIDE A VEHICLE IF POSSIBLE. LAT...LON 2583 8090 2603 8089 2597 8118 2583 8119 $$
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.
NWS Miami, FL wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 31, 2:30 PM EDT, 1 hour 58 minutes earlier.
Area forecast discussion, Aug 31, 2:30 PM EDT, 1 hour 58 minutes before
SOUTH FLORIDA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MIAMI FL 230 PM EDT TUE AUG 31 2004 .DISCUSSION...UPPER LOW OVER THE AREA SHOULD MEAN A HIGHER CHANCE OF RAIN THAT WE HAVE BEEN HAVING PREVIOUSLY. WE WILL STILL PROBABLY BE UNDER THE WESTERN PORTION OF THIS FEATURE TONIGHT WITH A LITTLE LESS CERTAINTY OF ITS POSITION AND STRENGTH ON WEDNESDAY. REGARDLESS THIS SHOULD KEEP US IN AN UNSTABLE SITUATION WITH HIGHER PROBABILITIES THROUGH TOMORROW. AFTER THAT WE WILL SWITCH OVER TO FRANCES CONSIDERATIONS. THE AREA OF DRIER AIR TO THE WEST OF THE STORM SHOULD MOVE TO NEAR US BY THURSDAY. SO WE WILL LOWER PROBABILITIES UNTIL THE OUTER PORTION OF THE STORM GIVES US SOME RAIN. THIS SHOULD TEND TO KEEP ANY HIGHER PROBABILITIES OVER OUR NORTHEASTERN FORECAST AREA. OVER THE WEEKEND WE SHOULD CONTINUE TO HAVE RAINBANDS TO CONTEND WITH THEN BY THE BEGINNING OF THE WEEK EVERYTHING SHOULD IMPROVE DRAMATICALLY. SO BY THEN WE SHOULD BE BACK TO A WEAK SURFACE HIGH AND AFTERNOON AND EVENING CONVECTION. AN ESFMIA WILL BE ISSUED THIS AFTERNOON TO DISCUSS THE RAINFALL AMOUNT POSSIBLIITIES. && .MARINE...LATE TOMORROW NIGHT THE ATLANTIC WINDS WILL BEGIN THERE INCREASE. AFTER THAT TIME UNTIL THE BEGINNING OF THE WEEK CONDITIONS WILL BECOME UNSAFE FOR BOATING. BY EARLY NEXT WEEK BOATING SHOULD BE GOOD EXCEPT FOR SOME SWELL FROM FRANCES. && .FIRE WEATHER...NO CONCERNS. && .PRELIMINARY POINT TEMPS/POPS... WEST PALM BEACH 79 90 80 90 / 40 50 20 30 FORT LAUDERDALE 79 90 81 90 / 40 50 20 30 MIAMI 79 90 80 90 / 40 50 20 30 NAPLES 75 92 75 94 / 40 60 20 30 && .MFL WATCHES/WARNINGS/ADVISORIES... FL...NONE. AM...NONE. GM...NONE. &&
Hazardous weather outlook, Aug 31, 10:22 AM EDT, 6 hours 6 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE MIAMI FL 1022 AM EDT TUE AUG 31 2004 FLZ063-066>075-312200- BROWARD METROPOLITAN-DADE METROPOLITAN-EASTERN COLLIER-GLADES-HENDRY- MAINLAND MONROE-PALM BEACH EASTERN-PALM BEACH WESTERN- WESTERN BROWARD-WESTERN COLLIER-WESTERN DADE- 1022 AM EDT TUE AUG 31 2004 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH FLORIDA. .DAY ONE...TODAY ...SCATTERED MAINLY INLAND AFTERNOON THUNDERSTORMS... SEA BREEZE CONVERGENCE THIS AFTERNOON WILL PRODUCE SCATTERED THUNDERSTORM ACTIVITY, MAINLY OVER INTERIOR SECTIONS OF SOUTH FLORIDA. GUSTY WINDS IN EXCESS OF 35 MPH, OCCASIONAL LIGHTNING, SMALL HAIL, AND LOCALLY HEAVY DOWNPOURS ARE POSSIBLE WITH THESE STORMS. ADDITIONAL INFORMATION AND DETAILED GRAPHICS CAN BE FOUND ON THE NATIONAL WEATHER SERVICE WEB SITE AT MIAMIWEATHER.INFO. FOR INFORMATION IN SPANISH, VISIT OUR WEB SITE AT ELTIEMPOENMIAMI.INFO. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY HURRICANE FRANCES IS FORECAST TO MOVE WEST-NORTHWEST INTO THE NORTHERN BAHAMAS BY LATE FRIDAY. ALL PERSONS IN SOUTH FLORIDA SHOULD KEEP UP WITH THE LATEST INFORMATION ON FRANCES AS SHE APPROACHES THE BAHAMAS LATER THIS WEEK. EARLY PREPAREDNESS ACTIONS SUCH AS STOCKING UP ON NON-PERISHABLES SUCH AS BATTERIES, WATER AND CANNED GOODS ARE ENCOURAGED. COMPREHENSIVE WEATHER FORECASTS, GRAPHICS, AND PREPAREDNESS INFORMATION CAN BE FOUND ON OUR WEB SITE AT MIAMIWEATHER.INFO. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED.
Nearby
Severe Thunderstorm Warnings in Florida, 2004Every severe thunderstorm warning in 2004
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.