Alert archive / Florida / Severe Thunderstorm Warnings in 2004
Severe Thunderstorm Warning 85, NWS Miami, FL
NWS Miami, FL issued this severe thunderstorm warning at Aug 15, 2004, 2:47 PM EDT for Collier County, Florida. It was in force for 33 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 15, 2004, 2:47 PM EDT (18:47 UTC)
- Expired
- Aug 15, 2004, 3:20 PM EDT
- In force
- 33 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), 143 km from the middle of the area, began a volume at 18:48 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, 6.8 hours before the alert went out and 145 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
- 1484 J/kg
- Mixed-layer CIN
- -31 J/kg
- Mixed-layer LCL
- 857 m above ground
- 0-6 km bulk shear
- 7 kt
- 0-1 km storm-relative helicity
- -25 m²/s²
- 0-3 km storm-relative helicity
- -1 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 151847 SVRMIA FLC021-151915- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MIAMI FL 244 PM EDT SUN AUG 15 2004 THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... WESTERN COLLIER COUNTY IN SOUTH FLORIDA. * UNTIL 320 PM EDT * AT 244 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STORM. OVER WESTERN COLLIER COUNTY...MOVING NORTHWEST AT 5 MPH. * THE STORM WILL AFFECT... GOLDEN GATE...QUAIL CREEK ESTATES SEVERE THUNDERSTORMS CAN PRODUCE DAMAGING WINDS IN EXCESS OF 60 MPH...DAMAGING HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAINFALL. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. THIS STORM HAS THE POTENTIAL TO CAUSE SERIOUS INJURY AND SIGNIFICANT DAMAGE TO PROPERTY. LAT...LON 2612 8171 2622 8154 2631 8162 2631 8180 $$ JBL
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 15, 1:25 PM EDT, 1 hour 22 minutes earlier.
Area forecast discussion, Aug 15, 1:25 PM EDT, 1 hour 22 minutes before
SOUTH FLORIDA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MIAMI FL 125 PM EDT SUN AUG 15 2004 .DISCUSSION...SUBTROPICAL RIDGE REMAINS FIRMLY ENTRENCHED OVER THE ATLANTIC, KEEPING LOW/MID LEVEL WINDS LIGHT FROM THE SOUTHEAST OVER SOUTH FLORIDA. BEST MOISTURE POOLING ALONG FRONTAL BOUNDARY EXTENDING FROM ACROSS THE GULF OF MEXICO, NORTH FLORIDA, AND UP THE MID-ATLANTIC COASTLINE. PRECIPITABLE WATER REMAINS JUST SHY OF TWO INCHES OVER THE NEXT COUPLE DAYS. SO JUST YOUR TYPICAL SUMMERTIME POPS WITH AN INLAND EMPHASIS. SURFACE TROUGH IN THE VICINITY OF THE EASTERN BAHAMAS/TURKS AND CAICOS WILL CONTINUE SLOW ADVANCE WESTWARD. THE GFS BRINGS THIS FEATURE INTO SOUTH FLORIDA BY TUESDAY. THUS EXPECT AT LEAST A LITTLE INCREASE IN SHOWER/T-STORM ACTIVITY PRIMARILY TUESDAY AFTERNOON. BY WEDNESDAY THE GFS BRINGS EVEN MORE MOISTURE ACROSS THE AREA AS IT BRINGS THE CENTER OF T.C. EARL WELL TO OUR SOUTH OVER THE WESTERN CARIBBEAN...AS DOES THE ENTIRE SUITE OF 12Z TRACK GUIDANCE AND OFFICIAL NHC FORECAST. NHC INTENSITY FORECAST IS FOR POTENTIALLY A CAT 2 HURRICANE BY THIS TIME. EXPECT H5 RIDGE TO BUILD DIRECTLY OVER SOUTH FLORIDA BY MID-WEEK. ALL THESE FACTORS POINT TO SUBSIDENCE LIMITING THUNDERSTORM THREATS TO THE SCATTERED RANGE. NOTHING ELSE OF INTEREST ON THE HORIZON DURING THE NEXT SEVEN DAYS. && .MARINE...SOUTHEAST WINDS GENERALLY UNDER 15 KNOTS SHOULD POSE LITTLE PROBLEM TO BOATERS IN OUR SOUTH FLORIDA WATERS. PEOPLE VENTURING INTO THE CARIBBEAN OR TOO FAR OUT INTO THE GULF WILL WANT TO KEEP AN EYE ON EARL BY MID-WEEK. && .PRELIMINARY POINT TEMPS/POPS... WEST PALM BEACH 78 90 78 90 / 30 30 20 30 FORT LAUDERDALE 80 89 81 89 / 20 20 20 30 MIAMI 79 90 80 90 / 30 30 20 40 NAPLES 76 91 76 91 / 40 40 40 50 && .MFL WATCHES/WARNINGS/ADVISORIES... FL...NONE. AM...NONE. GM...NONE. && HANDEL
Hazardous weather outlook, Aug 15, 8:45 AM EDT, 6 hours 2 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE MIAMI FL 845 AM EDT SUN AUG 15 2004 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH FLORIDA FLZ068-072-074-152200- BROWARD METROPOLITAN-DADE METROPOLITAN-PALM BEACH EASTERN- 845 AM EDT SUN AUG 15 2004 .DAY ONE...TODAY ...MODERATE RISK OF RIP CURRENTS ATLANTIC COAST... SCATTERED SHOWERS WILL MOVE ASHORE FROM THE ATLANTIC THIS MORNING. DURING THE AFTERNOON SCATTERED THUNDERSTORMS WILL BE NEAR THE WESTERN SECTIONS OF THE METRO AREA. EAST TO SOUTHEAST WINDS OF 10 TO 15 MPH COMBINED WITH LOW TIDE AT EARLY AFTERNOON WILL PRODUCE A MODERATE RISK OF RIP CURRENTS. 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...MONDAY THROUGH SATURDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED. FLZ063-066-067-070-071-152200- EASTERN COLLIER-GLADES-HENDRY-PALM BEACH WESTERN-WESTERN BROWARD- 845 AM EDT SUN AUG 15 2004 .DAY ONE...TODAY ...MODERATE RISK OF LIGHTNING... ...HEAT INDICES OF 105 TO 110 INTERIOR... SCATTERED THUNDERSTORMS WILL MOVE INTO THE INTERIOR OF SOUTH FLORIDA THIS AFTERNOON. BRIEF HEAVY DOWNPOURS WILL OCCUR ALONG WITH OCCASIONAL WIND GUSTS TO 30 MPH. THERE WILL BE A MODERATE THREAT OF LIGHTNING STRIKES UNTIL THE THUNDERSTORMS MOVE FURTHER AWAY. TEMPERATURES IN THE LOWER 90S COMBINED WITH RELATIVE HUMIDITY WILL PRODUCE HEAT INDEX VALUES OF 105 TO 110. 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...MONDAY THROUGH SATURDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED. FLZ069-073-075-152200- MAINLAND MONROE-WESTERN COLLIER-WESTERN DADE- 845 AM EDT SUN AUG 15 2004 .DAY ONE...TODAY ...MODERATE RISK OF LIGHTNING... ...HEAT INDICES 100 TO 105 INLAND FROM COAST... SCATTERED THUNDERSTORMS WILL MOVE WEST INTO THE INTERIOR OF SOUTH FLORIDA THIS AFTERNOON. BRIEF HEAVY DOWNPOURS WILL OCCUR ALONG WITH OCCASIONAL WIND GUSTS TO 30 MPH. THERE WILL BE A MODERATE THREAT OF LIGHTNING STRIKES. TEMPERATURES IN THE LOWER 90S COMBINED WITH RELATIVE HUMIDITY WILL PRODUCE HEAT INDEX VALUES OF 105 TO 110 INLAND AREAS AWAY FROM THE COAST. 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...MONDAY THROUGH SATURDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED.
The office that day
Everything else NWS Miami, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 15, 7:42 PM EDT | Severe Thunderstorm Warning | MFL | Glades | 63 min |
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.