Alert archive / Florida / Severe Thunderstorm Warnings in 2004
Severe Thunderstorm Warning 11, NWS Melbourne, FL
NWS Melbourne, FL issued this severe thunderstorm warning at Apr 8, 2004, 2:37 PM EDT for Orange County, Florida. It was in force for 53 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
- Apr 8, 2004, 2:37 PM EDT (18:37 UTC)
- Expired
- Apr 8, 2004, 3:30 PM EDT
- In force
- 53 min
- Issued by
- NWS Melbourne, FL
- Area
- Counties, with a storm outline in the text
County Orange County, FL
The radar
The Melbourne radar (KMLB), 79 km from the middle of the area, began a volume at 18:35 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 8, 10:45 AM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Cape Canaveral, FL (KXMR), launched 12:00Z, 6.6 hours before the alert went out and 80 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
- 213 J/kg
- Mixed-layer CIN
- -110 J/kg
- Mixed-layer LCL
- 790 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 44 m²/s²
- 0-3 km storm-relative helicity
- 72 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
047 WUUS52 KMLB 081837 SVRMLB FLC095-081930- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MELBOURNE FL 235 PM EDT THU APR 8 2004 THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... ORANGE COUNTY IN EAST CENTRAL FLORIDA * UNTIL 330 PM EDT * AT 230 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED DEVELOPING SEVERE THUNDERSTORMS NEAR WINDERMERE...MOVING EAST AT 35 MPH. * THE SEVERE THUNDERSTORM WILL BE... NEAR OAK RIDGE AT 240 PM EDT NEAR ORLANDO...CONWAY...EDGEWOOD...BELLE ISLE AT 245 PM EDT NEAR AZALEA PARK...5 MILES NORTH OF ORLANDO INTERNATIONAL AIRPORT AT 250 PM EDT NEAR UNION PARK AT 255 PM EDT 5 MILES SOUTH OF BITHLO AT 305 PM EDT NEAR CHRISTMAS AT 315 PM EDT STORMS ACROSS EAST CENTRAL FLORIDA HAVE HAD A HISTORY OF PRODUCING HAIL AND WIND DAMAGE THIS AFTERNOON. SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS IN EXCESS OF 58 MILES AN HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING AND VERY HEAVY RAIN. IF THE STORM APPROACHES YOU...MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR. LAT...LON 2861 8158 2843 8159 2835 8088 2859 8094 $$ 15
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 Melbourne, FL wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 8, 10:57 AM EDT, 3 hours 40 minutes earlier.
Area forecast discussion, Apr 8, 10:57 AM EDT, 3 hours 40 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MELBOURNE FL 1050 AM EDT THU APR 8 2004 .DISCUSSION... ...SEVERE THUNDERSTORM WATCH UNTIL 5 PM FOR LAKE...VOLUSIA...ORANGE AND SEMINOLE COUNTIES... LINE OF STORMS A FEW OF WHICH ARE SUPERCELLS MOVING FROM THE GULF INTO N CENTRAL PORTIONS OF THE STATE ATTM. SHRT/WV JET STREAK WORKING ON LIMITED MOISTURE BUT ENUF IN THE LOW LEVELS TO SUPPORT ORGANIZED CONVECTION. LOW LEVEL SHEAR PROFILE SUPPORTS ROTATING STORMS WITH WIND GUSTS AND HAIL PRIMARY THREATS. CANNOT RULE OUT ISOLATED TORNADO THREAT HOWEVER MAINLY OVER THE FAR N WHERE UPPER DYNAMICS CAN ACT ON LOW LEVEL SHEAR. WILL UPDATE FORECASTS AND HWO FOR INC SVR THREAT. && .MARINE... WILL CONTINUE SCEC THIS AFTN. WINDS AT 41009 NEAR 20KTS BUT RUC INDICATES P-GRAD SLACKENS SLIGHTLY THIS AFTN. OFFSHORE FLOW WILL RESTRICT HIGHER SEAS TO WELL OFFSHORE. WIND GUSTS FOR THUNDER ALREADY IN FCST. CONVECTION MOVING OFFSHORE SHOULD WEAKEN QUICKLY AS IT ENCOUNTERS COOL SHELF WATERS. && .MLB WATCHES/WARNINGS/ADVISORIES... NONE. && BLOTTMAN
Hazardous weather outlook, Apr 8, 11:45 AM EDT, 2 hours 52 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE MELBOURNE FL 1145 AM EDT THU APR 8 2004 AMZ550-555-570-575-FLZ041-044>047-053-054-058-059-064-141-144-147- 082100- COASTAL VOLUSIA-COCOA BEACH TO JUPITER INLET 20 NM TO 60 NM OFFSHORE- COCOA BEACH TO JUPITER INLET OUT TO 20 NM- FLAGLER BEACH TO COCOA BEACH 20 NM TO 60 NM OFFSHORE- FLAGLER BEACH TO COCOA BEACH OUT TO 20 NM-INDIAN RIVER- INLAND VOLUSIA-MARTIN-NORTHERN BREVARD-NORTHERN LAKE-OKEECHOBEE- ORANGE-OSCEOLA-SEMINOLE-SOUTHERN BREVARD-SOUTHERN LAKE-ST. LUCIE- 1107 AM EDT THU APR 8 2004 .DAY ONE... ...THUNDERSTORM IMPACT... A FRONTAL BOUNDARY MOVING AROSS THE SOUTHEAST STATES AND THE NORTHEAST GULF OF MEXICO WAS PRODUCING A LINE THUNDERSTORMS OVER NORTH FLORIDA. AS THE LINE OF STORMS MOVES EAST DURING THE DAY... THUNDERSTORMS WILL DEVELOP OVER THE NORTHERN PORTIONS OF EAST CENTRAL FLORIDA AND THE NORTHERN COASTAL WATERS. SOME OF THE STORMS OVER THE NORTHERN COUNTIES MAY PRODUCE WIND GUSTS OVER 55 MPH AND HAIL NICKEL SIZE OR LARGER. DEADLY CLOUD TO GROUND LIGHTNING WILL ACCOMPANY ALL THE STORMS. THE STRONGEST STORMS MAY HAVE THE POTENTIAL TO PRODUCE A BRIEF TORNADO OVER NORTH LAKE AND INLAND VOLUSIA COUNTIES. ...WIND AND SEA IMPACT... WEST WINDS BETWEEN 15 AND 20 KNOTS WILL PREVAIL ACROSS THE COASTAL WATERS OF EAST CENTRAL FLORIDA TODAY. THESE WINDS WILL GENERATE SEAS BETWEEN 2 AND 3 FEET SEAS NEARSHORE...AND UP TO 6 FEET OFFSHORE. IN ADDITION...THE OFFSHORE WIND COMPONENT WILL CREATE CHOPPY SEAS WITH WAVE PERIODS NEAR OR BELOW 5 SECONDS. SMALL CRAFT OPERATORS SHOULD EXCERCISE CAUTION OVER THE OPEN ATLANTIC TODAY AND REMAIN CLOSE TO SHORE IF POSSIBLE. ...MARINE THUNDERSTORM GUST IMPACT... THUNDERSTORMS MOVING OFF THE MAINLAND BETWEEN FLAGLER BEACH AND COCOA BEACH MAY PRODUCE GUSTY WINDS AS THEY MOVE EAST AT 20 MPH. AN ISOLATED THUNDERSTORM MAY PRODUCE WIND GUSTS OVER 40 KNOTS. .DAYS TWO THROUGH SEVEN... A STORM SYSTEM WILL MOVE ACROSS FLORIDA SUNDAY NIGHT AND MONDAY. THIS SYSTEM MAY GENERATE SCATTERED THUNDERSTORMS WITH DEADLY LIGHTNING AND GUSTY WINDS AS THE SYSTEM PULLS A COLD FRONT INTO FLORIDA. .SPOTTER INFORMATION STATEMENT... SKYWARN NETWORKS ARE REQUESTED TO ACTIVATE IN THE FOLLOWING COUNTIES...VOLUSIA...LAKE...ORANGE...SEMINOLE. WIMMER
In the hours before
Special weather statement, Apr 8, 12:30 PM EDT, 2 hours 7 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MELBOURNE FL 1230 PM EDT THU APR 8 2004 FLZ041-141-081715- COASTAL VOLUSIA COUNTY-INLAND VOLUSIA COUNTY- 1230 PM EDT THU APR 8 2004 ...STRONG STORM CAPABLE OF PRODUCING WINDS FROM 40 TO 45 MPH AND SMALL HAIL ACROSS VOLUSIA COUNTY... AT 1228 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STORM CAPABLE OF PRODUCING STRONG WINDS BETWEEN 40 AND 45 MPH AND SMALL HAIL OVER BARBERVILLE...MOVING EAST AT 40 MPH. THIS STORM WILL TRACK ACROSS DELAND...SPRUCE CREEK AND TOWARD THE COAST NEAR NEW SMYRNA BEACH THROUGH 115 PM. 15
Special weather statement, Apr 8, 1:28 PM EDT, 1 hour 9 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MELBOURNE FL 128 PM EDT THU APR 8 2004 FLZ041-046-141-081800- COASTAL VOLUSIA COUNTY-INLAND VOLUSIA COUNTY-SEMINOLE- 128 PM EDT THU APR 8 2004 ...STRONG STORM CAPABLE OF PRODUCING SMALL HAIL ACROSS SOUTHERN VOLUSIA COUNTY.. AT 125 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STORM CAPABLE OF PRODUCING SMALL HAIL JUST EAST OF CASSIA...MOVING EAST AT 30 MPH. LOCATIONS IN THE PATH OF THE STORM WHICH MAY EXPERIENCE SMALL HAIL INCLUDE DE BARY...OSTEEN...FARMTON...AND MIDWAY. IF THE STORM STRENGTHENS FURTHER...A WARNING WILL BE ISSUED. 15
Local storm report, Apr 8, 1:40 PM EDT, 57 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MELBOURNE FL
140 PM EDT THU APR 08 2004
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION...ST.. ...SOURCE....
..REMARKS..
0128 PM HAIL DE BARY 28.88N 81.31W
04/08/2004 0.88 INCH VOLUSIA FL PUBLIC
CITY OF DE BARRY EMPLOYEE
&&
MRTSpecial weather statement, Apr 8, 2:03 PM EDT, 34 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MELBOURNE FL 203 PM EDT THU APR 8 2004 FLZ045-144-081845- ORANGE-SOUTHERN LAKE COUNTY- 203 PM EDT THU APR 8 2004 ...STRONG STORM CAPABLE OF PRODUCING WINDS UP TO 50 MPH AND SMALL HAIL CENTRAL LAKE COUNTY...SOUTHWESTERN ORANGE COUNTY... AT 203 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STORM CAPABLE OF PRODUCING STRONG WINDS AND SMALL HAIL OVER GROVELAND TO CLERMONT AND WINTER GARDEN...MOVING EAST AT 30 MPH. LOCATIONS IN THE PATH OF THE STORM WHICH MAY EXPERIENCE STRONG WINDS AND SMALL HAIL INCLUDE BAY HILL...PINE CASTLE...BELLE ISLE AND DOCTOR PHILLIPS. IF THE STORM STRENGTHENS FURTHER...A WARNING WILL BE ISSUED. JP
Local storm report, Apr 8, 2:28 PM EDT, 9 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MELBOURNE FL
228 PM EDT THU APR 08 2004
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION...ST.. ...SOURCE....
..REMARKS..
0203 PM HAIL SCOTTSMOOR 28.77N 80.87W
04/08/2004 0.75 INCH BREVARD FL TRAINED SPOTTER
STORM SPOTTER REPORTED DIME SIZE HAIL AT 203 PM.
&&
MRTThe office that day
Everything else NWS Melbourne, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 8, 12:51 PM EDT | Severe Thunderstorm Warning | MLB | Volusia | 39 min |
| Apr 8, 12:55 PM EDT | Special Marine Warning | MLB | 2 hr | |
| Apr 8, 1:41 PM EDT | Severe Thunderstorm Warning | MLB | Volusia | 44 min |
| Apr 8, 1:46 PM EDT | Severe Thunderstorm Warning | MLB | Seminole | 44 min |
| Apr 8, 3:00 PM EDT | Special Marine Warning | MLB | 2 hr | |
| Apr 8, 3:00 PM EDT | Special Marine Warning | MLB | 2 hr | |
| Apr 8, 3:18 PM EDT | Severe Thunderstorm Warning | MLB | Brevard | 57 min |
| Apr 8, 4:35 PM EDT | Special Marine Warning | MLB | 115 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.