Alert archive / Florida / Severe Thunderstorm Warnings in 2008
Severe Thunderstorm Warning 50, NWS Melbourne, FL
NWS Melbourne, FL issued this severe thunderstorm warning at Jun 12, 2008, 2:09 PM EDT for Osceola County, Florida. It was in force for 21 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
- Jun 12, 2008, 2:09 PM EDT (18:09 UTC)
- Expired
- Jun 12, 2008, 2:30 PM EDT
- In force
- 21 min
- Issued by
- NWS Melbourne, FL
- Area
- Storm-based polygon
County Osceola County, FL
The radar
The Melbourne radar (KMLB), 66 km from the middle of the area, began a volume at 18:11 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
Cape Canaveral, FL (KXMR), launched 12:00Z, 6.2 hours before the alert went out and 85 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
- 2260 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 600 m above ground
- 0-6 km bulk shear
- 4 kt
- 0-1 km storm-relative helicity
- 12 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 KMLB 121809 SVRMLB FLC097-121900- /O.NEW.KMLB.SV.W.0050.080612T1809Z-080612T1900Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MELBOURNE FL 209 PM EDT THU JUN 12 2008 THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CENTRAL OSCEOLA COUNTY IN FLORIDA. * UNTIL 300 PM EDT * AT 206 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED 6 MILES SOUTH OF SAINT CLOUD... AND MOVING NORTHWEST AT 4 MPH. * OTHER LOCATIONS IN THE WARNING INCLUDE...BUT ARE NOT LIMITED TO... WEST LAKE TOHO AND EAST LAKE TOHO SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS IN EXCESS OF 58 MILES AN HOUR AND OR LARGE DESTRUCTIVE HAIL. FREQUENT TO EXCESSIVE LIGHTNING AND VERY HEAVY RAIN WILL ALSO BE POSSIBLE. IF THE STORM APPROACHES YOU...SEEK SHELTER IN AN ENCLOSED BUILDING ON THE LOWEST FLOOR. KEEP AWAY FROM WINDOWS. DOPPLER RADAR HAS INDICATED SOME WEAK ROTATION WITHIN THIS STORM. WHILE NOT IMMEDIATELY LIKELY...A TORNADO MAY STILL DEVELOP. IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY STRUCTURE...SUCH AS A SMALL INTERIOR ROOM. LAT...LON 2834 8131 2816 8115 2803 8130 2819 8150 TIME...MOT...LOC 1809Z 147DEG 3KT 2816 8130 $$ BRAGAW
1 follow-up statement
000 WWUS52 KMLB 121830 SVSMLB SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MELBOURNE FL 229 PM EDT THU JUN 12 2008 FLC097-121839- /O.CAN.KMLB.SV.W.0050.000000T0000Z-080612T1900Z/ OSCEOLA FL- 229 PM EDT THU JUN 12 2008 ...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL OSCEOLA COUNTY IS CANCELLED... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THE SEVERE STORM THAT PROMPTED THE WARNING HAD WEAKENED AND WAS NO LONGER CAPABLE OF PRODUCING LARGE HAIL OR DAMAGING WINDS. AS A RESULT...THE WARNING HAS BEEN CANCELLED. HOWEVER...HEAVY RAIN AND DANGEROUS LIGHTNING STRIKES WILL CONTINUE THROUGH 300 PM. LAT...LON 2834 8131 2816 8115 2803 8130 2819 8150 TIME...MOT...LOC 1829Z 147DEG 3KT 2817 8131 $$ BRAGAW
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 Jun 12, 10:00 AM EDT, 4 hours 9 minutes earlier.
Area forecast discussion, Jun 12, 10:00 AM EDT, 4 hours 9 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MELBOURNE FL 10 AM EDT THU JUN 12 2008 .DISCUSSION... ...STRONG STORMS WITH LOCALLY HEAVY RAINFALL...SMALL HAIL AND GUSTY WINDS AGAIN THIS AFTERNOON... MAIN CONCERN FOR THE AFTERNOON AND EARLY EVENING HOURS WILL BE THE POTENTIAL FOR STRONG STORMS TO FORM OVER THE INTERIOR. MORNING UPPER AIR SOUNDINGS WERE SHOWING SUFFICIENT MOISTURE THROUGH THE COLUMA AND 500MB TEMPERATURES IN THE -9 TO -10C RANGE WHICH HAS BEEN COOL ENOUGH TO PRODUCE COIN SIZE HAIL AND GUSTY WINDS IN AFTERNOON STORMS THE PAST TWO DAYS. ADDITIONAL THREATS ARE FREQUENT LIGHTNING STRIKES AND RAIN ACCUMULATIONS FROM SLOW MOVING STORMS PRODUCING LOCALLY HEAVY RAIN. THE TWO LOCAL WRF MODELS ARE SUGGESTING THAT THE ACTION SHOULD START OVER THE INTERIOR AND WHERE THE LAKE OKEECHOBEE AND SEA BREEZES INTERACT OVER WESTERN MARTIN AND SAINT LUCIE COUNTIES LATE AFTERNOON AND WIND DOWN AN HOUR OR TWO AFTER SUNSET. && .AVIATION...CHC OF TSTM FOR CSTL TERMINALS LATER THIS MORNING INTO EARLY AFTERNOON AS EAST COAST SEA BRZ DEVELOPS JUST INLAND FROM THE COAST. FOR INTERIOR TERMINALS 19Z-23Z LOOKS TO BE THE FAVORABLE WINDOW FOR AFTERNOON CONVECTION AS EAST COAST SEA BRZ BOUNDARY ADVANCES INLAND. HAVE STARTED INLAND TEMPO GROUPS AT 20Z BUT MAY NEED TO BUMP UP AN HOUR EARLIER...WITH ACTIVITY ALREADY ACTIVE JUST OFF THE COAST EARLY THIS MORNING. && .MARINE...LATEST ROUND OF BUOY REPORTS WERE INDICATING 1 TO 2 FOOT SEAS NEARSHORE...TO 3 FEET WELL OFFSHORE AND LIGHT EASTERLY WINDS. WINDS WILL INCREASE OVER THE NEARSHORE WATERS WHEN AFTERNOON SEA BREEZES. NO SIGNIFICANT CHANGES TO AFTERNOON MARINE FORECAST. ALSO...CONDITIONS ARE FAVORABLE (DEEP MOISTURE/LIGHT WINDS) FOR WATERSPOUT FORMATION ALONG THE TREASURE COAST...ESP THROUGH LATE MORNING. HAVE ISSUED AN MWS TO HIGHLIGHT POTENTIAL TO MARINERS IN THE AREA. && .FIRE WEATHER...HIGH KBDIS AND LIGHTNING STORMS AGAIN TODAY WILL BE A FIRE WEATHER CONCERN. LOCALLY HEAVY RAIN WILL OCCUR WITH THE STRONGEST STORMS...FOCUSING ACROSS THE INTERIOR BY LATE AFTERNOON. && WIMMER
Hazardous weather outlook, Jun 12, 8:43 AM EDT, 5 hours 26 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE MELBOURNE FL 843 AM EDT THU JUN 12 2008 AMZ550-552-555-570-572-575-FLZ041-044>047-053-054-058-059-064-141- 144-147-122000- COASTAL WATERS FROM FLAGLER BEACH TO VOLUSIA BREVARD COUNTY LINE OUT 20 NM- COASTAL WATERS FROM VOLUSIA BREVARD COUNTY LINE TO SEBASTIAN INLET OUT 20 NM- COASTAL WATERS FROM SEBASTIAN INLET TO JUPITER INLET OUT 20 NM- WATERS FROM FLAGLER BEACH TO VOLUSIA BREVARD COUNTY LINE 20 TO 60 NM OFFSHORE- WATERS FROM VOLUSIA BREVARD COUNTY LINE TO SEBASTIAN INLET 20 TO 60 NM OFFSHORE- WATERS FROM SEBASTIAN INLET TO JUPITER INLET 20 TO 60 NM OFFSHORE- INLAND VOLUSIA-NORTHERN LAKE-ORANGE-SEMINOLE-SOUTHERN BREVARD- OSCEOLA-INDIAN RIVER-OKEECHOBEE-ST. LUCIE-MARTIN-COASTAL VOLUSIA- SOUTHERN LAKE-NORTHERN BREVARD- 843 AM EDT THU JUN 12 2008 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL FLORIDA. .DAY ONE...TODAY AND TONIGHT. ...THUNDERSTORM IMPACT... AN UPPER LEVEL LOW OFFSHORE FROM EAST CENTRAL FLORIDA IN COMBINATION WITH DAYTIME HEATING...PLENTIFUL MOISTURE AND THE DEVELOPING EAST COAST SEA BREEZE BOUNDARY WILL GENERATE SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS FROM MID DAY INTO THE EARLY EVENING HOURS. INITIAL ACTIVITY WILL LIKELY DEVELOP ALONG THE EAST COAST SEA BREEZE ACROSS THE COASTAL COUNTIES FROM LATE MORNING INTO THE EARLY AFTERNOON. BY LATE AFTERNOON...MUCH OF THE THUNDERSTORM ACTIVITY IS EXPECTED TO CONCENTRATED OVER INTERIOR SECTIONS OF EAST CENTRAL FLORIDA AS THE EAST COAST SEA BREEZE AND THUNDERSTORM OUTFLOW BOUNDARIES INTERACT TO TRIGGER ADDITIONAL STORMS. THE PRIMARY THUNDERSTORM HAZARDS WILL LOCALLY HEAVY RAIN...FREQUENT LIGHTNING...AND GUSTY WINDS WITH THE STRONGER STORMS. A FEW STORMS MAY REACH SEVERE LIMITS WITH STRONG WIND GUSTS AND HAIL. ...FLOOD IMPACT... STORM MOTION WILL BE TOWARD THE SOUTH TODAY AT ONLY 5 TO 10 MPH WITH LOCALLY HEAVY RAINFALL AMOUNTS OF TWO TO THREE INCHES EXPECTED WITH STRONGER STORMS. THE HEAVY RAIN MAY CAUSE MINOR FLOODING OF URBAN...LOW LYING AND POOR DRAINAGE AREAS. ...WATERSPOUT IMPACT... SUFFICIENT MOISTURE AND LIGHT WIND PROFILES MAY ASSIST IN PRODUCING WATERSPOUTS IN ALREADY DEVELOPING CUMULUS CLOUDS OVER THE NEARSHORE WATERS. THE RISK OF WATERSPOUTS WILL DIMINISH IN THE AFTERNOON AS THE EAST COAST SEA FORMS AND LOW LEVEL WIND PROFILES INCREASE. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY. SCATTERED THUNDERSTORMS ARE EXPECTED EACH AFTERNOON THROUGH THE END OF THE WEEK...WITH ACTIVITY FOCUSING ACROSS FAR INTERIOR SECTIONS BY SATURDAY AS DRIER ONSHORE FLOW IS EXPECTED. A TROUGH OF LOW PRESSURE ACROSS THE SOUTHEAST STATES NEXT WEEK WILL INCREASE SHOWER AND THUNDERSTORMS CHANCES AGAIN WITH STEERING FLOW TOWARD THE EAST COAST. .SPOTTER INFORMATION STATEMENT... SPOTTERS ARE REQUESTED TO MONITOR THE WEATHER AND SELF ACTIVATE IF NEEDED. VOLKMER/WIMMER
In the hours before
Local storm report, Jun 12, 10:18 AM EDT, 3 hours 51 minutes before
PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE MELBOURNE FL
1018 AM EDT THU JUN 12 2008
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1000 AM WATER SPOUT 7 NE FORT PIERCE INLET 27.55N 80.21W
06/12/2008 AMZ555 FL LAW ENFORCEMENT
STATE WARNING POINT RELAYED WATERSPOUT REPORT BY SHERIFF
DEPUTY OFFSHORE 1000 BLOCK S.OCEAN DRIVE
&&
FXDLocal storm report, Jun 12, 10:35 AM EDT, 3 hours 34 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MELBOURNE FL
1035 AM EDT THU JUN 12 2008
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1015 AM WATER SPOUT 6 ESE WAVELAND 27.23N 80.12W
06/12/2008 AMZ555 FL COUNTY OFFICIAL
BEACH SAFETY LIFEGAURDS REPORTED WATERSPOUT OFFSHORE
&&
FXDSpecial weather statement, Jun 12, 10:54 AM EDT, 3 hours 15 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MELBOURNE FL 1054 AM EDT THU JUN 12 2008 FLZ054-059-121545- INDIAN RIVER-ST. LUCIE- 1054 AM EDT THU JUN 12 2008 ...FUNNEL CLOUDS POSSIBLE OVER SOUTHEASTERN INDIAN RIVER COUNTY... NORTHEASTERN ST. LUCIE COUNTY... AT 1053 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STORM CAPABLE OF PRODUCING FUNNEL CLOUDS AND STRONG WIND GUSTS APPROACHING THE COAST...MOVING SOUTHWEST AT AROUND 5 MPH. LOCATIONS IN THE PATH OF THE STORM WHICH MAY EXPERIENCE GUSTY WINDS AND FUNNEL CLOUDS INCLUDE LAKEWOOD PARK......QUEENS COVE...SAINT LUCIE AIRPORT...VERO BEACH HIGHLANDS AND SAINT LUCIE VILLAGE. FUNNEL CLOUDS CAN OCCASIONALLY TOUCH DOWN AND PRODUCE BRIEF...SMALL TORNADOES. MOVE INDOORS AND STAY AWAY FROM WINDOWS. GLITTO
Special weather statement, Jun 12, 11:47 AM EDT, 2 hours 22 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MELBOURNE FL 1147 AM EDT THU JUN 12 2008 FLZ054-121630- INDIAN RIVER- 1147 AM EDT THU JUN 12 2008 ...STRONG THUNDERSTORMS AFFECTING EASTERN INDIAN RIVER COUNTY... AT 1139 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG STORM OVER INDIAN RIVER COUNTY NEAR SOUTH BEACH...MOVING WEST AT 8 MPH. THE PRIMARY THREAT WILL BE CLOUD TO GROUND LIGHTNING STRIKES AND GUSTY WINDS OF 40 TO 45 MPH...WHICH MAY CAUSE UNSECURED OBJECTS TO BLOW AROUND. HEAVY RAINFALL WILL TEMPORARILY REDUCE VISIBILITY. SEEK SHELTER INDOORS UNTIL THE STORM PASSES. 52
Special weather statement, Jun 12, 11:55 AM EDT, 2 hours 14 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MELBOURNE FL 1155 AM EDT THU JUN 12 2008 FLZ059-064-121645- MARTIN-ST. LUCIE- 1155 AM EDT THU JUN 12 2008 ...STRONG THUNDERSTORMS AFFECTING NORTHWESTERN MARTIN COUNTY... SOUTHWESTERN ST. LUCIE COUNTY... AT 1148 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG STORM OVER SOUTH CENTRAL ST. LUCIE COUNTY...MOVING WEST AT 8 MPH. THE PRIMARY THREAT WILL BE CLOUD TO GROUND LIGHTNING STRIKES AND GUSTY WINDS OF 40 TO 45 MPH...WHICH MAY CAUSE UNSECURED OBJECTS TO BLOW AROUND. HEAVY RAINFALL WILL TEMPORARILY REDUCE VISIBILITY. SEEK SHELTER INDOORS UNTIL THE STORM PASSES. A BRIEF PERIOD OF SMALL HAIL...PEA TO DIME SIZE...WILL ALSO BE POSSIBLE IN LOCALIZED AREAS. 52
Special weather statement, Jun 12, 2:00 PM EDT, 9 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MELBOURNE FL 200 PM EDT THU JUN 12 2008 FLZ045-053-121900- ORANGE-OSCEOLA- 203 PM EDT THU JUN 12 2008 ...FUNNEL CLOUDS POSSIBLE OVER SOUTHWESTERN ORANGE COUNTY... NORTHWESTERN OSCEOLA COUNTY... AT 158 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED SEVERAL STRONG THUNDERSTORMS DEVELOPING BETWEEN THE ORLANDO INTERNATIONAL AIRPORT AND THE NORTH SHORE OF LAKE KISSIMMEE. THESE THESE STORM WILL BE CAPABLE OF PRODUCING FUNNEL CLOUDS AND STRONG WIND GUSTS AS THEY DRIFT TO THE WEST AT 5 TO 10 MPH. LOCATIONS IN THE WHICH MAY EXPERIENCE GUSTY WINDS AND FUNNEL CLOUDS INCLUDE KISSIMMEE...SAINT CLOUD...CAMPBELL...BUENA VISTA LAKES...AND CELEBRATION. BRAGAW
The office that day
Everything else NWS Melbourne, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 12, 10:06 AM EDT | Special Marine Warning | MLB | 94 min | |
| Jun 12, 12:25 PM EDT | Severe Thunderstorm Warning | MLB | Martin | 50 min |
| Jun 12, 4:00 PM EDT | Areal Flood Advisory | MLB | Lake, Orange | 90 min |
Nearby
Severe Thunderstorm Warnings in Florida, 2008Every severe thunderstorm warning in 2008
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.