Alert archive / Florida / Severe Thunderstorm Warnings in 2004
Severe Thunderstorm Warning 54, NWS Miami, FL
NWS Miami, FL issued this severe thunderstorm warning at Jul 11, 2004, 1:25 PM EDT for Broward County, Florida. It was in force for 65 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
- Jul 11, 2004, 1:25 PM EDT (17:25 UTC)
- Expired
- Jul 11, 2004, 2:30 PM EDT
- In force
- 65 min
- Issued by
- NWS Miami, FL
- Area
- Counties, with a storm outline in the text
County Broward County, FL
The radar
The Miami radar (KAMX), 60 km from the middle of the area, began a volume at 17:29 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, 5.4 hours before the alert went out and 39 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
- 2350 J/kg
- Mixed-layer CIN
- -7 J/kg
- Mixed-layer LCL
- 797 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- -18 m²/s²
- 0-3 km storm-relative helicity
- 13 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 111725 SVRMIA FLC011-111830- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MIAMI FL 123 PM EDT SUN JUL 11 2004 THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... EASTERN BROWARD COUNTY IN SOUTH FLORIDA. * UNTIL 230 PM EDT * AT 123 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STORM CAPABLE OF PRODUCING LARGE HAIL...AND DAMAGING WINDS 5 MILES WEST OF SUNRISE...MOVING SOUTH SOUTHWEST AT 5 MPH. * THE STORM WILL AFFECT... WESTON. INTERSECTION I-75 AND U.S. 27. 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 2620 8026 2628 8033 2615 8067 2594 8048 $$ DG
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 Jul 11, 1:25 PM EDT, 0 minutes earlier.
Area forecast discussion, Jul 11, 1:25 PM EDT, 0 minutes before
SOUTH FLORIDA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MIAMI FL 125 PM EDT SUN JUL 11 2004 DISCUSSION...SCATTERED SHOWERS AND THUNDERSTORMS HAVE DEVELOPED ALONG THE EAST COAST SEA BREEZE EARLY THIS AFTERNOON OVER PALM BEACH...AND BROWARD COUNTIES. THE SHOWERS AND THUNDERSTORMS SHOULD CONTINUE TO DEVELOP THROUGH THE AFTERNOON HOURS ALONG THE EAST COAST SEA BREEZE...WHILE MOVING INLAND THROUGH THE INTERIOR AREAS AND THE EAST COAST METRO AREAS. SO PLAN ON HAVING SCATTERED POPS OVER THE EAST COAST METRO REGIONS FOR REST OF THIS AFTERNOON. THE WEST COAST SEA BREEZE HAS ALSO DEVELOPED EARLY THIS AFTERNOON ALONG THE WEST METRO REGIONS OF SOUTH FLORIDA. SHOWERS AND THUNDERSTORMS SHOULD DEVELOP ALONG THE WEST COAST SEA BREEZE THROUGH THE AFTERNOON HOURS AND MOVE SLOWLY INLAND...DUE TO THE STEERING FLOW FROM THE EAST TO NORTHEAST. SO PLAN ON HAVING HIGH END SCATTERED POPS OVER THE WEST COAST METRO AREAS FOR REST OF THIS AFTERNOON. WHERE THE SEA BREEZES AND LAKE BREEZES COLLIDE OVER THE INTERIOR REGION LATE THIS AFTERNOON OR EARLY THIS EVENING...A FEW OF THE STORMS COULD BECOME STRONG WITH GUSTY WINDS...SMALL HAIL...AND LOCALLY HEAVY RAINFALL. SO PLAN ON MENTIONING A FEW STRONG STORMS OVER THE INTERIOR REGIONS FOR THIS EVENING AND REST OF THIS AFTERNOON. THE SHOWERS AND THUNDERSTORMS SHOULD COME TO AND END LATE THIS EVENING OR EARLY TONIGHT OVER THE INTERIOR REGIONS AND THE WEST COAST AREAS. SO PLAN ON HAVING SCATTERED POPS OVER THE INTERIOR AND WEST COAST AREAS THROUGH THE LATE EVENING HOURS. SURFACE HIGH PRESSURE OVER CENTRAL FLORIDA TONIGHT...ALONG WITH AN UPPER LEVEL LOW OVER THE WESTERN CUBA...WILL HELP PUSH ANY ACTIVITY THAT DEVELOPS OVER THE ATLANTIC WATERS TOWARDS THE EAST COAST METRO REGIONS. SO PLAN ON HAVING A 20 PERCENT POPS FOR THE EAST COAST METRO AREAS TONIGHT. THE SURFACE HIGH WILL REMAIN OVER CENTRAL FLORIDA ON MONDAY...AS THE UPPER LEVEL LOW MOVES INTO THE WESTERN CARIBBEAN SEA. THIS WILL KEEP THE EAST FLOW GOING OVER SOUTH FLORIDA ON TUESDAY AND PUSH THE EAST COAST SEA BREEZE INLAND...WHILE THE WEST COAST SEA BREEZE REMAINS NEAR THE WEST COAST. SO PLAN ON HAVING THE HIGHEST POPS OVER THE WEST COAST ON MONDAY. THE SURFACE HIGH WILL THEN MOVE SOUTH INTO SOUTH FLORIDA ON TUESDAY WHILE WEAKENING A LITTLE...AS A TROUGH OF LOW PRESSURE DEVELOPS OVER THE EASTERN US. SHOWERS AND THUNDERSTORMS THAT DEVELOP WILL GET PUSH TO THE NORTH TOWARD THE LAKE REGION AND PALM BEACH AREA. .EXTENDED FORECAST...THE TROUGH OF LOW PRESSURE OVER THE EASTERN US WILL THEN DEEPEN A LITTLE BY MID TO LATE THIS WEEK...WHICH IN TURN WILL PUSH THE HIGH SOUTH OF THE CWA AND ALLOW FOR MORE SHOWERS AND THUNDERSTORMS ACTIVITY FOR THE EAST COAST METRO REGIONS. THE UPPER LEVEL TROUGH OVER EASTERN US WILL REMAIN NEARLY STATIONARY THROUGH NEXT WEEKEND BEFORE WEAKENING...AND MOVING NORTHEAST BY EARLY NEXT WEEK. THIS WILL KEEP THE HIGH END SCATTERED POPS OVER THE EAST COAST NEXT WEEKEND WITH LOW SCATTERED POPS OVER THE WEST COAST. && .MARINE...THE WINDS WILL REMAIN ROUND 10 KNOTS OR BELOW THROUGH THE WEEK WHILE SHIFTING FROM AN EAST SOUTHEAST DIRECTION TO A SOUTHWEST DIRECTION. SEAS WILL ALSO BE 2 FEET OR LESS OVER THE ATLANTIC AND GULF WATERS THROUGH THE WEEK. && .FIRE WEATHER...NO FIRE WEATHER CONCERNS...ALTHOUGH FUELS REMAIN DRY MANY AREAS...ESPECIALLY EAST. ONGOING BRUSH FIRES WEST OF MIAMI MAY GET A GOOD DOWSING NEXT COUPLE OF DAYS...HOPEFULLY. && .PRELIMINARY POINT TEMPS/POPS... WEST PALM BEACH 78 92 77 92 / 20 30 20 40 FORT LAUDERDALE 80 90 79 90 / 20 30 20 30 MIAMI 79 91 78 91 / 20 30 20 30 NAPLES 74 92 76 92 / 40 50 40 40 && .MFL WATCHES/WARNINGS/ADVISORIES... FL...NONE. AM...NONE. GM...NONE. && BAXTER
Hazardous weather outlook, Jul 11, 9:07 AM EDT, 4 hours 18 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE MIAMI FL 907 AM EDT SUN JUL 11 2004 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH FLORIDA FLZ068-072-074-112100- BROWARD METROPOLITAN-DADE METROPOLITAN-PALM BEACH EASTERN- 907 AM EDT SUN JUL 11 2004 .DAY ONE...TODAY SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP THIS AFTERNOON. MUCH OF THE ACTIVITY IS EXPECTED TO REMAIN WEST OF THE METRO AREAS. HOWEVER...THE WESTERN MOST SUBURBS MAY SEE SOME THUNDERSTORMS THIS AFTERNOON. FREQUENT CLOUD TO GROUND LIGHTNING WILL OCCUR WITH THE THUNDERSTORMS THIS AFTERNOON. 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 A SURFACE TROUGH WILL MOVE NORTH OF THE AREA BY THE MIDDLE AND LATTER PART OF THE WEEK...RESULTING IN A SOUTHWESTERLY FLOW. THIS WILL ALLOW FOR A BETTER CHANCE FOR THUNDERSTORM ACTIVITY AND MUCH NEEDED RAINFALL TO AFFECT THE EAST COAST METRO AREAS EACH AFTERNOON AND EVENING FROM WEDNESDAY THROUGH SATURDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED. FLZ069>071-073-075-112100- EASTERN COLLIER-MAINLAND MONROE-WESTERN BROWARD-WESTERN COLLIER- WESTERN DADE- 907 AM EDT SUN JUL 11 2004 .DAY ONE...TODAY ...STRONG STORMS POSSIBLE THIS AFTERNOON... A VERY UNSTABLE ATMOSPHERE ACROSS THE AREA TODAY WILL ALLOW FOR NUMEROUS THUNDERSTORMS TO DEVELOP ACROSS THE AREA THIS AFTERNOON. SOME OF THE STORMS ARE FORECAST TO BE STRONG...WITH GUSTY WINDS...HAIL...AND FREQUENT CLOUD TO GROUND LIGHTNING. LOCALLY HEAVY DOWNPOURS WILL ACCOMPANY THE STORMS AS WELL. 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 MAY BE REQUIRED THIS AFTERNOON. FLZ063-066-067-112100- GLADES-HENDRY-PALM BEACH WESTERN- 907 AM EDT SUN JUL 11 2004 .DAY ONE...TODAY SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP ACROSS THE AREA THIS AFTERNOON. FREQUENT CLOUD TO GROUND LIGHTNING AND LOCALLY HEAVY DOWNPOURS WILL ACCOMPANY THE THUNDERSTORMS. 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.
In the hours before
Special weather statement, Jul 11, 1:13 PM EDT, 12 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MIAMI FL 113 PM EDT SUN JUL 11 2004 FLZ067-068-111745- PALM BEACH EASTERN-PALM BEACH WESTERN- 113 PM EDT SUN JUL 11 2004 ...STRONG STORMS AFFECTING EASTERN PALM BEACH COUNTY... AT 113 PM...DOPPLER RADAR INDICATED STRONG THUNDERSTORMS OVER EASTERN PALM BEACH COUNTY. THE STRONGEST THUNDERSTORM WAS LOCATED BETWEEN ROYAL PALM BEACH AND WELLINGTON...MOVING SOUTHWEST AT 10 MPH. THIS STORM WILL AFFECT WELLINGTON...PRODUCING GUSTY WINDS TO 40 MPH...FREQUENT CLOUD TO GROUND LIGHTNING...AND POSSIBLY SMALL HAIL. STAY TUNED TO NOAA WEATHER RADIO AND OTHER LOCAL MEDIA FOR FURTHER DETAILS OR UPDATES. FOR ADDITIONAL INFORMATION VISIT THE MIAMI NATIONAL WEATHER SERVICE WEBSITE AT MIAMIWEATHER.INFO. FOR INFORMATION IN SPANISH, VISIT OUR WEBSITE AT ELTIEMPOENMIAMI.INFO. DG
The office that day
Everything else NWS Miami, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 11, 3:26 PM EDT | Special Marine Warning | MFL | 64 min | |
| Jul 11, 4:25 PM EDT | Special Marine Warning | MFL | 65 min | |
| Jul 11, 5:22 PM EDT | Severe Thunderstorm Warning | MFL | Glades | 53 min |
| Jul 11, 5:25 PM EDT | Special Marine Warning | MFL | 65 min | |
| Jul 11, 7:12 PM EDT | Special Marine Warning | MFL | 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.