Alert archive / Florida / Special Weather Statements in 2011
Special Weather Statement, NWS Melbourne, FL
NWS Melbourne, FL issued this special weather statement at Aug 24, 2011, 4:43 PM EDT for Lake County, Florida. It was in force for 47 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
- Aug 24, 2011, 4:43 PM EDT (20:43 UTC)
- Expired
- Aug 24, 2011, 5:30 PM EDT
- In force
- 47 min
- Issued by
- NWS Melbourne, FL
County Lake County, FL
The radar
The Tampa radar (KTBW), 131 km from the middle of the area, began a volume at 20:46 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.
The nearest sounding before it
Cape Canaveral, FL (KXMR), launched 12:00Z, 8.7 hours before the alert went out and 138 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
- 134 J/kg
- Mixed-layer CIN
- -79 J/kg
- Mixed-layer LCL
- 1246 m above ground
- 0-6 km bulk shear
- 7 kt
- 0-1 km storm-relative helicity
- -57 m²/s²
- 0-3 km storm-relative helicity
- -15 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>What forecasters said that day
The local office's own words before this special weather statement 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 special weather statement went out at Aug 24, 2:39 PM EDT, 2 hours 4 minutes earlier.
Area forecast discussion, Aug 24, 2:39 PM EDT, 2 hours 4 minutes before
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</html>Hazardous weather outlook, Aug 24, 12:53 PM EDT, 3 hours 50 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE MELBOURNE FL 1253 PM EDT WED AUG 24 2011 AMZ550-552-555-570-572-575-FLZ041-044>047-053-054-058-059-064-141- 144-147-250000- 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- 1253 PM EDT WED AUG 24 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL FLORIDA. .DAY ONE...THIS AFTERNOON AND TONIGHT. .THUNDERSTORM IMPACT... A WEAK TROUGH ALOFT OVER CENTRAL FLORIDA WILL ALLOW ISOLATED TO SCATTERED SHOWERS AND LIGHTNING STORMS TO DEVELOP ACROSS EAST CENTRAL FLORIDA. THE BEST AREA FOR DEVELOPMENT WILL BE OVER THE FAR INLAND AREAS NEAR AND WEST OF METRO ORLANDO AND THE THEME PARKS DUE TO DEEP LAYER ONSHORE WINDS. THE PRIMARY THREATS WILL BE OCCASIONAL CLOUD TO GROUND LIGHTNING AND BRIEF HEAVY RAIN. .COASTAL FLOOD IMPACT... INCREASING SWELL AND ONSHORE WIND WILL PRODUCE POUNDING SURF ALONG THE BEACHES. MINOR BEACH EROSION WILL OCCUR THIS EVENING ALONG WITH DANGEROUS BREAKING WAVES IN THE SURF ZONE. A HIGH SURF ADVISORY WILL BE IN EFFECT FOR THE ATLANTIC BEACHES BEGINNING THIS EVENING. .RIP CURRENT IMPACT... INCREASING LONG PERIOD SWELLS GENERATED BY MAJOR HURRICANE IRENE WILL CONTINUE TO IMPACT THE EAST FLORIDA COAST INTO THURSDAY. THIS WILL RESULT IN A MODERATE THREAT FOR RIP CURRENTS ALONG AREA BEACHES. CHECK WITH BEACH PATROL FOR THE LATEST SURF DANGERS AND NEVER SWIM ALONE. .MARINE THUNDERSTORM GUST IMPACT... ISOLATED THUNDERSTORMS OVER INLAND LAKES WILL BE CAPABLE OF PRODUCING LOCALLY STRONG WINDS IN EXCESS OF 35 KNOTS. .WIND AND SEA IMPACT... AFTERNOON AS IRENE MOVES ACROSS THE BAHAMA BANK SEAS WILL INCREASE STEADILY THIS AFTERNOON AND TONIGHT AS IRENE APPROACHES. SEAS WILL BUILD TO 8 TO 10 FEET WELL OFFSHORE BY LATE TONIGHT AS WINDS INCREASE TO 20 TO 25 KNOT OFFSHORE LATE TONIGHT. SMALL CRAFT SHOULD REMAIN IN PORT BEGINNING ON THURSDAY. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY. THE CENTER OF MAJOR HURRICANE IRENE IS FORECAST TO PASS 200 TO 250 MILES OFFSHORE FROM THE EAST FLORIDA COAST LATE THURSDAY AND INTO FRIDAY. NEVERTHELESS...IRENE IS FORECAST TO BE A LARGE AND POWERFUL HURRICANE. THIS COULD PRODUCE TROPICAL STORM CONDITIONS OVER THE EAST CENTRAL FLORIDA ATLANTIC WATERS AND OCCASIONAL GUSTS TO TROPICAL STORM FORCE IN SQUALLS ACROSS THE COASTAL COUNTIES AND EASTERN SECTIONS OF THE INTERIOR COUNTIES THURSDAY AFTERNOON INTO FRIDAY MORNING. SIGNIFICANT BEACH EROSION AND HIGH SURF IS EXPECTED THURSDAY INTO FRIDAY ALONG THE COAST. FOR MORE DETAILED INFORMATION ON THE IMPACTS FROM IRENE TO EAST CENTRAL FLORIDA PLEASE REFER TO THE HURRICANE LOCAL STATEMENT. .SPOTTER INFORMATION STATEMENT... ACTIVATION IS NOT EXPECTED TODAY. PENDERGRAST/BRAGAW
In the hours before
Special weather statement, Aug 24, 4:43 PM EDT, 0 minutes before
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</html>The office that day
Everything else NWS Melbourne, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 24, 5:15 AM EDT | Tropical Storm Warning | MLB | 57 hr | |
| Aug 24, 2:35 PM EDT | High Surf Advisory | MLB | Volusia | 56 hr |
Nearby
Special Weather Statements in Florida, 2011Every special weather statement in 2011
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.