1 thunderstorm wind, as filed by the National Weather Service.
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The local office's own words before the first event, 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 the first event at Apr 11, 3:52 PM EST, 2 hours 1 minute earlier.
SOUTH FLORIDA AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MIAMI FL 452 PM EDT SUN APR 11 2004 .UPDATE...CURRENT FORECAST WILL NEED TO BE UPDATED SHORTLY. NUMERICAL MODELS ALSO PERFORMING POORLY THIS AFTERNOON IN ALL RESPECTS. JUST LIKE YESTERDAY...I AM DISCOUNTING ALMOST ENTIRELY THE GFS AND RUC SOLUTIONS FOR TONIGHT. OUR CURRENT FORECAST POPS ARE CLOSELY IN LINE WITH GFS AT THIS MOMENT. THIS WILL BE CHANGED. MESOETA IS THE ONLY MODEL THAT EVEN REMOTELY COMES CLOSE TO PICKING UP ON UPPER LEVEL DISTURBANCE MOVING ACROSS THE GULF OF MEXICO THOUGH AS USUAL DOESNT PICK UP ON THE SURFACE REFLECTION VERY WELL. AIRCRAFT SOUNDING DATA SHOWS 500 MB TEMPERATURES VARY SIGNIFICANTLY ACROSS CWA FROM A HIGH OF -8 DEGREES C NEAR MIA TO -11 NEAR RSW. DESTABILIZATION OCCURING RAPIDLY LATE THIS AFTERNOON...WITH CAPES NEAR 2000 J/KG. LOW LEVEL THETA-E RIDGE MOVES OVER FORECAST WESTERN ZONES EARLY THIS EVENING AS LOW LEVEL WINDS BACK. SO FOR THE OVERNIGHT TONIGHT...WILL UP POPS TO 60 NAPLES...40 PALM BEACH...AND 30 IN MIAMI. CONCERNED ALSO THAT SOME OF THE CONVECTION COULD BE STRONG...WITH MARGINAL DAMAGING WIND THREAT. WILL ALSO UPDATE HAZARDOUS OUTLOOK TO MENTION THIS POTENTIAL THIS EVENING...MAINLY FOR THE WEST COAST...LAKE OKEE...AND PALM BEACH ZONES. .PREVIOUS DISCUSSION...UNFORTUNATELY THE ONLY GPSMET AVAILABLE TODAY WAS MIAMI. IT DID SHOW WE WERE DRIER THAN YESTERDAY ALONG WITH THE 12UTC RAOBS SO IT WILL BE DIFFICULT TO DEVELOP ANY LATE AFTERNOON AND EARLY EVENING CONVECTION. SURFACE LOW OVER THE NORTH CENTRAL GULF OF MEXICO MOVING WITH UPPER WAVE THAT CAME OUT OF NORTHERN MEXICO AND SOUTHERN TEXAS. THIS FEATURE SHOULD BE NORTH OF THE PENINSULA TOMORROW MORNING AS IT IS MOVING RAPIDLY NORTHEAST. THE UPPER RIDGE OVER US SHOULD HELP TO KEEP THE EFFECTS OF THIS SYSTEM NORTH OF OUR ZONES SO ITS DEEP MOISTURE SHOULD STAY TO OUR NORTH. MONDAY AS THE MAIN SURFACE LOW DEEPENS OVER THE SOUTHEASTERN U.S. IT SHOULD HELP TO DRAW THE DEEPER MOISTURE THAT HAS BEEN SOUTH AND WEST OF US UP OVER OUR ZONES. THE TIMING AND LOCATION OF THE UPPER SUPPORT IS SUCH THAT THE CONVECTION THREAT SHOULD BE MOSTLY TO OUR NORTH AND DURING THE AFTERNOON MONDAY. THE LOW LEVEL CONVERGENCE DOES NOT LOOK LIKE IT SHOULD BE THAT GOOD. HOWEVER WITH HIGH PROBABILITIES ALREADY IN THE FORECAST WILL LEAVE THEM ALONE. THE COLD FRONT IS STILL SET TO MOVE IN ON TUESDAY NIGHT. SO TUESDAY STILL LOOKS LIKE A GOOD PRECIPITATION DAY. BEST UPPER SUPPORT ALSO IS EXPECTED TO REMAIN NORTH OF US ON TUESDAY SO THUNDERSTORM THREAT SHOULD BE MORE WIDESPREAD IN OUR NORTHERN ZONES. AFTER THE FRONT HAS MOVED THROUGH THE REMAINDER OF THE WEEK SHOULD FEATURE MOSTLY SUNNY AND DRY CONDITIONS. THIS SURFACE HIGH SHOULD SPEND MUCH OF THE WEEK MOVING INTO THE ATLANTIC WITH OUR AREA RETURNING TO EASTERLY FLOW BY NEXT WEEKEND. THE UPPER RIDGE OVER OUR ZONES SHOULD ALSO BUILD BACK AND KEEP US FROM DEVELOPING ANY CONVECTION. MAYBE BY SUNDAY NIGHT WE SHOULD HAVE STRONG ENOUGH LOW LEVEL EASTERLIES TO SEE SOME EAST COAST NIGHTTIME SHOWERS. WILL STILL LEAVE THESE OUT AT THIS TIME. && .MARINE...WINDS STILL EXPECTED TO INCREASE TONIGHT AND REMAIN AT OR NEAR SMALL CRAFT THROUGH TUESDAY. MAYBE BY MID-WEEK AS THE SURFACE HIGH WEAKENS WE SHOULD RETURN TO WINDS OF 15 KNOTS OR LESS. SO THE END OF THE WEEK SHOULD FEATURE GOOD BOATING CONDITIONS. && .FIRE WEATHER...NO PROBLEMS UNTIL LATE THIS WEEK. BY THURSDAY AND FRIDAY HUMIDITIES COULD APPROACH THRESHOLD VALUES. AFTER THAT TIME AS THE FLOW SLOWLY RETURNS TO EAST THE MOISTURE SHOULD INCREASE. && .PRELIMINARY POINT TEMPS/POPS... WEST PALM BEACH 74 84 71 85 / 20 80 40 70 FORT LAUDERDALE 74 86 73 85 / 10 70 40 70 MIAMI 74 86 73 86 / 10 70 40 70 NAPLES 72 82 72 75 / 20 70 60 70 && .MFL WATCHES/WARNINGS/ADVISORIES... NONE. &&
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE MIAMI FL 513 PM EDT SUN APR 11 2004 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH FLORIDA FLZ063-066>075-120300- BROWARD METROPOLITAN-DADE METROPOLITAN-EASTERN COLLIER-GLADES-HENDRY- MAINLAND MONROE-PALM BEACH EASTERN-PALM BEACH WESTERN- WESTERN BROWARD-WESTERN COLLIER-WESTERN DADE- 513 PM EDT SUN APR 11 2004 .DAY ONE...THIS EVENING ...THUNDERSTORMS PORTIONS OF SOUTH FLORIDA TONIGHT... ...A FEW COULD BE STRONG PARTICULARLY ACROSS SOUTHWEST COAST... AN UPPER LEVEL DISTURBANCE CURRENTLY MOVING ACROSS THE EASTERN GULF OF MEXICO WILL BE APPROACHING THE SOUTHWEST FLORIDA COAST AROUND SUNSET THIS EVENING. A SQUALL LINE IS ACCOMPANYING THIS SYSTEM. THERE IS A SLIGHT CHANCE THAT A FEW OF THE STORMS ACCOMPANYING THIS SYSTEM COULD BE STRONG WITH WIND GUSTS TO AROUND 50 MPH...FREQUENT LIGHTNING...AND SMALL HAIL POSSIBLE. THIS ACTIVITY IS MOST LIKELY TO AFFECT THE SOUTHWEST COAST OF FLORIDA AND AREAS AROUND LAKE OKEECHOBEE LATER TONIGHT. IF YOU SEE LIGHTNING OR HEAR THUNDER MOVE INTO A STURDY BUILDING UNTIL THE STORMS HAVE PASSED. NO OTHER HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. 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 LOW PRESSURE SYSTEM WILL FORM TONIGHT IN THE GULF OF MEXICO AND MOVE INTO THE FLORIDA PANHANDLE MONDAY NIGHT. THIS WILL CREATE STRONG SOUTH WINDS...INCREASING MOISTURE AND INSTABILITY ACROSS SOUTH FLORIDA. THERE IS A CHANCE OF STRONG TO POSSIBLY SEVERE THUNDERSTORMS MONDAY AFTERNOON AND EVENING THROUGHOUT SOUTH FLORIDA. A COLD FRONT WILL MOVE THROUGH SOUTH FLORIDA TUESDAY EVENING ALLOWING MUCH DRYER AIR TO MOVE INTO THE AREA FROM THE NORTH INCREASING THE FIRE DANGER WEDNESDAY AND THURSDAY AFTERNOONS. .SPOTTER INFORMATION STATEMENT... SPOTTERS ARE ADVISED TO REMAIN ON THE ALERT IN CASE THE SEVERE WEATHER THREAT INCREASES AND ACTIVATION IS REQUESTED. PS
The national radar mosaic for the moment the first event began.
1 thunderstorm wind. Local standard time, as filed.
A 73 mph thunderstorm wind gust was measured by the Palmdale FAWN site. Large tree limbs were blown onto power lines and a few trees were uprooted.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Florida in 2004Every state in 2004This day in weather historyWarnings in Florida, April 2004
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 5382080.