Alert archive / Florida / Special Weather Statements in 2011
Special Weather Statement, NWS Melbourne, FL
NWS Melbourne, FL issued this special weather statement at Sep 5, 2011, 3:06 PM EDT for Lake County, Seminole County, Florida. It was in force for 54 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
- Sep 5, 2011, 3:06 PM EDT (19:06 UTC)
- Expired
- Sep 5, 2011, 4:00 PM EDT
- In force
- 54 min
- Issued by
- NWS Melbourne, FL
Counties Lake County, FL, Seminole County, FL
The radar
The Melbourne radar (KMLB), 120 km from the middle of the area, began a volume at 19:06 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, 7.1 hours before the alert went out and 104 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
- 1611 J/kg
- Mixed-layer CIN
- -10 J/kg
- Mixed-layer LCL
- 707 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- 3 m²/s²
- 0-3 km storm-relative helicity
- 18 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 Sep 5, 9:35 AM EDT, 5 hours 31 minutes earlier.
Area forecast discussion, Sep 5, 9:35 AM EDT, 5 hours 31 minutes before
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</html>Hazardous weather outlook, Sep 5, 10:54 AM EDT, 4 hours 12 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE MELBOURNE FL 1054 AM EDT MON SEP 5 2011 AMZ550-552-555-570-572-575-FLZ041-044>047-053-054-058-059-064-141- 144-147-052100- 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- 1054 AM EDT MON SEP 5 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL FLORIDA. .DAY ONE...THIS AFTERNOON AND TONIGHT. .THUNDERSTORM IMPACT... SHOWERS AND THUNDERSTORMS WILL INCREASE IN COVERAGE FROM WEST TO EAST AS SOUTHERLY WINDS BRING MOIST AIR INTO EAST CENTRAL FLORIDA. THE MOIST AIRMASS ALONG WITH SURFACE HEATING WILL ALLOW FOR SCATTERED LIGHTNING STORMS TO DEVELOP AND MOVE INTO THE AREA. STEERING WINDS WILL MOVE THE STORMS TO THE NORTHEAST AT 15 TO 20 MPH. SOME STORMS MAY BRIEFLY BECOME STRONG ENOUGH TO PRODUCE WIND GUSTS TO 50 MPH...FREQUENT LIGHTNING STRIKES AND LOCALLY HEAVY RAIN AS THEY APPROACH THE FLORIDA EAST COAST BETWEEN FLAGLER BEACH AND JUPITER INLET. .RIP CURRENT IMPACT... A HIGH RISK OF RIP CURRENTS EXISTS AT AREA BEACHES TODAY AS LONG PERIOD SWELLS FROM HURRICANE KATIA ARE IMPACTING THE COAST. RIP CURRENTS WILL BE MOST PREVALENT THIS AFTERNOON THROUGH THE TIME OF THE LOW TIDE...WHICH WILL BE AROUND 8 PM THIS EVENING. LONGSHORE CURRENTS MOVING PARALLEL TO THE BEACH WILL ALSO BE A CONCERN. THE LONG SHORE CURRENT CAN BE STRONG ENOUGH TO KNOCK YOU OFF A SANDBAR AND INTO DEEP WATER. ALWAYS SWIM NEAR A LIFEGUARD AND NEVER TRY TO SWIM DIRECTLY AGAINST CURRENTS. .MARINE THUNDERSTORM GUST IMPACT... STORMS WILL MOVE FROM SOUTHWEST TO NORTHEAST ACROSS THE PENINSULA TODAY...AFFECTING INLAND LAKES THIS AFTERNOON AND COASTAL AREAS ALONG THE ATLANTIC BY EARLY THIS EVENING. AS THESE STORMS APPROACH THE INDIAN RIVER LAGOON AND THE NEARSHORE ATLANTIC WATERS THEY MAY BECOME STRONG ENOUGH TO PRODUCE CLOUD TO GROUND OR CLOUD TO WATER LIGHTNING STRIKES AND WINDS IN EXCESS OF 34 KNOTS AS THEY MOVE TO THE NORTHEAST AT 15 TO 20 KNOTS. .WIND AND SEA IMPACT... SOUTHERLY WINDS OF 15 TO 20 KNOTS WHEN COMBINED WITH A 3 TO 5 FOOT LONG PERIOD SWELL WILL BUILD SEAS TO 6 FEET BEYOND 20 MILES OF THE COAST FROM SEBASTIAN INLET NORTH. SEAS ARE EXPECTED TO BUILD TO 5 TO 6 FEET OVER THE REST OF THE OFFSHORE COASTAL WATERS TONIGHT. SMALL CRAFT SHOULD EXERCISE CAUTION OVER THE OFFSHORE WATERS THIS AFTERNOON AND OVERNIGHT. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY. SCATTERED AFTERNOON AND EVENING SHOWERS AND THUNDERSTORMS WILL OCCUR THROUGH THE END OF THE WEEK AND INTO THE WEEKEND AS ATMOSPHERIC MOISTURE VALUES REMAIN HIGH. LONG PERIOD SWELLS WILL CONTINUE TO PRODUCE AN ENHANCED RIP CURRENT RISK AND ELEVATED SEAS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY. GUSEMAN/WIMMER
In the hours before
Special weather statement, Sep 5, 3:06 PM EDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
306 PM EDT MON SEP 5 2011
FLZ041-044>046-141-144-052000-
COASTAL VOLUSIA COUNTY-INLAND VOLUSIA COUNTY-NORTHERN LAKE
COUNTY-ORANGE-SEMINOLE-SOUTHERN LAKE COUNTY-
306 PM EDT MON SEP 5 2011
...A SIGNIFICANT WEATHER ADVISORY IS IN EFFECT FOR STRONG WIND GUSTS
BETWEEN 45 AND 55 MPH OVER NORTHERN LAKE COUNTY...NORTHERN ORANGE
COUNTY...SEMINOLE COUNTY...WESTERN VOLUSIA COUNTY...
* UNTIL 400 PM EDT.
AT 302 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STORM CAPABLE OF PRODUCING STRONG WIND GUSTS OVER APOPKA...MOVING
NORTHEAST AT 25 MPH.
LOCATIONS IN THE PATH OF THE STORM WHICH MAY EXPERIENCE STRONG WINDS
INCLUDE DE BARY...DELTONA...DELAND AND WEKIWA SPRINGS STATE PARK.
THE PRIMARY THREAT WILL BE CLOUD TO GROUND LIGHTNING STRIKES AND
GUSTY WINDS OF 45 TO 55 MPH...WHICH CAN CAUSE UNSECURED OBJECTS TO
BLOW AROUND...SNAP TREE LIMBS OR CAUSE POWER OUTAGES. HEAVY RAINFALL
WILL TEMPORARILY REDUCE VISIBILITY. SEEK SHELTER INDOORS UNTIL THE
STORM PASSES.
LAT...LON 2896 8164 2932 8166 2938 8145 2934 8141
2927 8141 2926 8134 2924 8132 2862 8096
2861 8097 2860 8095 2859 8095 2856 8156
2877 8196 2895 8196
TIME...MOT...LOC 1904Z 206DEG 23KT 2866 8152The office that day
Everything else NWS Melbourne, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 4, 8:04 PM EDT | Special Weather Statement | MLB | Osceola | 56 min |
| Sep 5, 4:02 AM EDT | Rip Current Statement | MLB | Volusia | 16 hr |
| Sep 5, 3:07 PM EDT | Special Weather Statement | MLB | Osceola | 53 min |
| Sep 5, 3:38 PM EDT | Special Marine Warning | MLB | 112 min | |
| Sep 5, 3:40 PM EDT | Special Weather Statement | MLB | Indian River, Saint Lucie | 65 min |
| Sep 5, 4:16 PM EDT | Special Weather Statement | MLB | Seminole, Volusia | 44 min |
| Sep 5, 7:31 PM EDT | Special Marine Warning | MLB | 40 min |
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.