Alert archive / Florida / Severe Thunderstorm Warnings in 2004
Severe Thunderstorm Warning 56, NWS Miami, FL
NWS Miami, FL issued this severe thunderstorm warning at Jul 13, 2004, 4:03 PM EDT for Miami-Dade County, Florida. It was in force for 27 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 13, 2004, 4:03 PM EDT (20:03 UTC)
- Expired
- Jul 13, 2004, 4:30 PM EDT
- In force
- 27 min
- Issued by
- NWS Miami, FL
- Area
- Counties, with a storm outline in the text
County Miami-Dade County, FL
The radar
The Miami radar (KAMX), 26 km from the middle of the area, began a volume at 20:07 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, 8.1 hours before the alert went out and 7 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
- 1914 J/kg
- Mixed-layer CIN
- -9 J/kg
- Mixed-layer LCL
- 862 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 26 m²/s²
- 0-3 km storm-relative helicity
- 8 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 132003 SVRMIA FLC086-132030- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MIAMI FL 400 PM EDT TUE JUL 13 2004 THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHEASTERN MIAMI-DADE COUNTY IN SOUTH FLORIDA. * UNTIL 430 PM EDT * AT 400 PM EDT...TRAINED WEATHER SPOTTERS REPORTED A STORM PRODUCING DIME TO QUARTER SIZE HAIL ALONG THE FLORIDA TURNPIKE NEAR NW 41ST STREET OR 7 MILES SOUTHWEST OF HIALEAH...MOVING NORTHEAST AT 5 MPH. * THE STORM WILL AFFECT... DORAL BY 420 PM EDT. VIRGINIA GARDENS BY 425 PM EDT. HIALEAH GARDENS BY 430 PM EDT. 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 2578 8043 2577 8033 2594 8022 2594 8039 $$ KB
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 13, 1:20 PM EDT, 2 hours 43 minutes earlier.
Area forecast discussion, Jul 13, 1:20 PM EDT, 2 hours 43 minutes before
SOUTH FLORIDA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MIAMI FL 120 PM EDT TUE JUL 13 2004 .DISCUSSION...ISOLATED TO SCATTERED SHOWERS WERE DEVELOPING EARLY THIS AFTERNOON ALONG THE EAST COAST SEA BREEZE OVER THE EASTERN COASTLINE OF SOUTH FLORIDA. THE SHOWERS AND THUNDERSTORMS SHOULD CONTINUE TO DEVELOP ALONG THE EAST COAST SEA BREEZE WHILE REMAINING OVER THE EAST COAST METRO AREAS OF THE CWA...AS SURFACE RIDGE OF HIGH PRESSURE WILL BE OVER THE ATLANTIC WATERS OF SOUTH FLORIDA WHICH WILL CAUSE THE STEERING FLOW TO BE FROM THE SOUTH TO SOUTHWEST. FOR REST OF THE CWA...ISOLATED SHOWERS AND THUNDERSTORMS SHOULD DEVELOP ALONG THE WEST COAST SEA BREEZE EARLY THIS AFTERNOON OVER THE WEST COAST METRO AREAS BEFORE PUSHING INLAND AND BECOMING SCATTERED OVER THE INTERIOR REGIONS. THE SHOWERS AND THUNDERSTORMS SHOULD COME TO AN END EARLY THIS EVENING OVER THE INTERIOR REGIONS...AND HANG AROUND THROUGH THE EVENING HOURS OVER THE EAST COAST METRO AREAS...MAINLY OVER THE NORTHEAST PORTION OF THE CWA...BEFORE DISSIPATING EARLY TONIGHT. THERE COULD BE SOME SHOWERS AND THUNDERSTORM ACTIVITY OVER THE GULF AND ATLANTIC WATERS THROUGH THE OVERNIGHT HOURS...AND WITH A SOUTH TO SOUTHWEST STEERING FLOW THE ACTIVITY COULD MOVE ONSHORE ALONG THE WEST COAST METRO REGIONS AND INTO THE SOUTHEAST PORTIONS OF THE CWA. SO PLAN ON HAVING A 10% POPS FOR THE WEST COAST AND THE SOUTHEAST COAST OF THE CWA TONIGHT. THE LAST COUPLE OF RUNS IN THE SHORT TERM AND LONG TERM GFS MODELS SHOW THAT THE UPPER LEVEL TROUGH OVER THE EASTERN US TO NOT DEEPEN AS MUCH AS EARLY FORECASTED...AND TO HAVE THE SURFACE RIDGE OF HIGH PRESSURE REMAIN OVER THE CWA REGION THROUGH THE END OF THE WEEK. SO PLAN ON MAKING THE WINDS SOUTHERLY OVER THE SOUTHERN PORTION OF THE CWA THROUGH THE END OF THE WEEK...AND SOUTHWEST OVER THE NORTHERN PORTIONS OF THE CWA. THIS WILL SHIFT THE HIGHER SHOWER AND THUNDERSTORM ACTIVITY TO THE NORTHERN PORTION OF THE CWA...BUT WITH THE SOUTH TO SOUTHWEST FLOW THE EAST COAST SEA BREEZE SHOULD REMAIN OVER THE EAST COAST METRO AREAS. THEREFORE...THERE SHOULD STILL BE 40 TO 50 PERCENT CHANCE OF SHOWERS AND THUNDERSTORMS FOR EACH DAY FOR THE EAST COAST. FOR THE WEST COAST REGIONS THERE SHOULD A 30 PERCENT CHANCE OF ACTIVITY EACH DAY GOING UP TO A 40 TO 50 PERCENT CHANCE OVER THE INTERIOR REGIONS...DUE TO THE HEATING OF THE DAY AND THE WEST COAST SEA BREEZE DEVELOPING AND PUSHING INLAND. .EXTENDED FORECAST...THE SURFACE RIDGE OF HIGH PRESSURE WILL REMAIN OVER THE CWA THROUGH THE WEEKEND AND INTO EARLY NEXT WEEK...AS THE TROUGH OF LOW PRESSURE WILL REMAIN OVER THE EASTERN US. THIS WILL KEEP THE WINDS SOUTH TO SOUTHWEST OVER THE CWA AND KEEP THE CHANCE OF SHOWERS AND THUNDERSTORMS GOING OVER THE CWA...WITH THE HIGHEST CHANCE OF ACTIVITY OVER THE NORTHEAST COAST REGIONS. && .MARINE...WINDS WILL BE MAINLY SOUTH/SOUTHWEST ALL MARINE ZONES WITH SPEEDS LESS THAN 15 KNOTS THROUGH THE ENTIRE FORECAST. WINDS/SEAS HIGHER NEAR STORMS. SO NO HIGHLIGHTS ARE EXPECTED AT THIS TIME. && .FIRE WEATHER...NO FIRE WEATHER PROBLEMS...EXCEPT FOR FUELS REMAINING RATHER DRY SOME AREAS AND LIGHTNING CONTINUES TO BE A FIRE RISK. THERE COULD ALSO BE SOME PATCHY SMOKE OVER THE WESTERN INTERIOR REGIONS OF MIAMI-DADE COUNTY TONIGHT FROM THE WILDFIRE OVER WESTERN MIAMI-DADE COUNTY. && .PRELIMINARY POINT TEMPS/POPS... WEST PALM BEACH 76 93 76 93 / 30 50 40 50 FORT LAUDERDALE 78 91 78 91 / 20 40 30 40 MIAMI 78 92 78 92 / 20 40 30 40 NAPLES 76 90 77 90 / 10 30 20 30 && .MFL WATCHES/WARNINGS/ADVISORIES... FL...NONE. AM...NONE. GM...NONE. &&
Hazardous weather outlook, Jul 13, 9:52 AM EDT, 6 hours 11 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE MIAMI FL 952 AM EDT TUE JUL 13 2004 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH FLORIDA FLZ068-132200- PALM BEACH EASTERN- 952 AM EDT TUE JUL 13 2004 .DAY ONE...TODAY ...SCATTERED THUNDERSTORMS WITH A MODERATE RISK OF LIGHTNING... ...MODERATE RISK OF WATERSPOUTS ATLANTIC WATERS... ...HEAT INDICES TO 105 THIS AFTERNOON... SCATTERED THUNDERSTORMS DEVELOPING INLAND THIS AFTERNOON...WILL MOVE NORTHEAST TOWARD METROPOLITAN PALM BEACH COUNTY. THESE THUNDERSTORMS WILL PRODUCE FREQUENT LIGHTNING...LOCALLY HEAVY RAINS AND SOME GUSTY WINDS. BEFORE THE THUNDERSTORMS ARRIVE...TEMPERATURES INLAND MAY CLIMB TO THE MID 90S WITH HEAT INDICES NEARING 105. 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 NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED. FLZ072-074-132200- BROWARD METROPOLITAN-DADE METROPOLITAN- 952 AM EDT TUE JUL 13 2004 .DAY ONE...TODAY ...MODERATE RISK OF WATERSPOUTS ATLANTIC WATERS... ...HEAT INDICES TO 105 INLAND AREAS THIS AFTERNOON... THE VISIBILITY RESTRICTIONS OVER WESTERN METRO MIAMI-DADE COUNTY WILL CONTINUE TO IMPROVE THROUGHOUT THE DAY...AS THE EAST COAST SEA BREEZE DEVELOPS AND CARRIES THE SMOKE AWAY FROM THE MIAMI METRO AREA. ISOLATED THUNDERSTORMS MAY DEVELOP INLAND THIS AFTERNOON. ANY STORM THAT DOES DEVELOP WILL CONTAIN FREQUENT LIGHTNING...LOCALLY HEAVY RAINS AND SOME GUSTY WINDS. HEAT INDEX VALUES ARE EXPECTED TO NEAR 105 IN THE WESTERN SUBURBS THIS AFTERNOON. NO OTHER HAZARDOUS WEATHER IS EXPECTED. 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 NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED. FLZ063-066-067-070-071-073-075-132200- EASTERN COLLIER-GLADES-HENDRY-MAINLAND MONROE-PALM BEACH WESTERN- WESTERN BROWARD-WESTERN DADE- 952 AM EDT TUE JUL 13 2004 .DAY ONE...TODAY ...SCATTERED THUNDERSTORMS WITH A MODERATE RISK OF LIGHTNING... ...HEAT INDICES TO 105... SCATTERED THUNDERSTORMS DEVELOPING THIS AFTERNOON WILL PRODUCE FREQUENT LIGHTNING...LOCALLY HEAVY RAINS AND SOME GUSTY WINDS. BEFORE THE THUNDERSTORMS HIT...TEMPERATURES MAY CLIMB TO THE MID 90S WITH HEAT INDICES NEARING 105. NO OTHER HAZARDOUS WEATHER IS EXPECTED. 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 NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED. FLZ069-132200- WESTERN COLLIER- 952 AM EDT TUE JUL 13 2004 .DAY ONE...TODAY ...HEAT INDICES TO 105 INLAND FROM THE COAST... LIGHTNING STRIKES WILL BE THE MAIN WEATHER HAZARD TODAY AS ISOLATED THUNDERSTORMS DEVELOP INLAND ALONG THE WEST COAST SEA BREEZE. UNTIL THE SEA BREEZE DEVELOPS...HEAT INDICES WILL NEAR 105 AS INLAND TEMPERATURES WILL NEAR THE MID 90S. NO OTHER HAZARDOUS WEATHER IS EXPECTED. 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 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 |
|---|---|---|---|---|
| Jul 13, 10:32 AM EDT | Special Marine Warning | MFL | 43 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.