Alert archive / Florida / Special Weather Statements in 2011
Special Weather Statement, NWS Melbourne, FL
NWS Melbourne, FL issued this special weather statement at Apr 28, 2011, 3:14 PM EDT for Volusia County, Florida. It was in force for 46 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 28, 2011, 3:14 PM EDT (19:14 UTC)
- Expired
- Apr 28, 2011, 4:00 PM EDT
- In force
- 46 min
- Issued by
- NWS Melbourne, FL
County Volusia County, FL
The radar
The Jacksonville radar (KJAX), 137 km from the middle of the area, began a volume at 19:16 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, 7.2 hours before the alert went out and 125 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
- 671 J/kg
- Mixed-layer CIN
- -81 J/kg
- Mixed-layer LCL
- 1082 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 34 m²/s²
- 0-3 km storm-relative helicity
- 46 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
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 Apr 28, 10:40 AM EDT, 4 hours 34 minutes earlier.
Area forecast discussion, Apr 28, 10:40 AM EDT, 4 hours 34 minutes before
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</html>Hazardous weather outlook, Apr 28, 10:21 AM EDT, 4 hours 53 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE MELBOURNE FL 1021 AM EDT THU APR 28 2011 AMZ550-552-555-570-572-575-FLZ041-044>047-053-054-058-059-064-141- 144-147-290230- 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- 1021 AM EDT THU APR 28 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL FLORIDA. .DAY ONE...TODAY AND TONIGHT. ...THUNDERSTORM IMPACT... A COLD FRONT LOCATED ACROSS THE FLORIDA PANHANDLE LATE THIS MORNING WILL PUSH SLOWLY SOUTH AND EAST AND PUSH INTO CENTRAL FLORIDA TONIGHT. MOISTURE WILL INCREASE THROUGHOUT THE DAY WHICH WILL LEAD TO SCATTERED LIGHTNING STORMS THIS AFTERNOON. STORM MOTION WILL BE TOWARD THE EAST NORTHEAST AT 15 TO 25 MPH. THE EAST COAST SEA BREEZE BOUNDARY WILL DEVELOP FROM BREVARD COUNTY SOUTHWARD TO MARTIN COUNTY WHICH MAY INCREASE STORM COVERAGE AND INTENSITY EARLY THIS EVENING AS STORMS COLLIDE WITH THIS BOUNDARY. THE SEA BREEZE WILL DEVELOP LATER ALONG THE VOLUSIA COAST AND EITHER BE PINNED AT THE COAST OR HANG JUST OFFSHORE. THE PRIMARY HAZARD FROM STORMS TODAY WILL BE CLOUD TO GROUND LIGHTNING AND GUSTY WINDS OF 40 TO 45 MPH. HOWEVER CONDITIONS WILL BECOME MORE FAVORABLE LATER THIS AFTERNOON INTO THIS EVENING FOR ONE OR TWO STORMS TO PRODUCE DAMAGING WINDS AND COIN SIZED HAIL. ...EXCESSIVE HEAT IMPACT... HEAT COMBINED WITH HUMIDITY WILL PUSH HEAT INDICES INTO THE UPPER 90S OVER OKEECHOBEE AND OSCEOLA COUNTIES BY MID AFTERNOON. HEAT INDICES IN THE MID 90S ARE LIKELY ACROSS INTERIOR CENTRAL FLORIDA BY EARLY AFTERNOON. ...RIP CURRENT IMPACT... WEATHER AND OCEAN CONDITIONS WILL PRODUCE AN ELEVATED THREAT FOR RIP CURRENTS AT THE BEACHES OF EAST CENTRAL FLORIDA TODAY. IN ADDITION...A NORTHWARD FLOWING LONGSHORE CURRENT WILL EXIST. ALWAYS SWIM NEAR A LIFEGUARD. ...MARINE THUNDERSTORM GUST IMPACT... SCATTERED LIGHTNING STORMS DEVELOPING OVER EAST CENTRAL FLORIDA THIS AFTERNOON WILL PUSH OFFSHORE THROUGH EARLY THIS EVENING. STRONGER STORMS WILL BE CAPABLE OF PRODUCING WIND GUSTS OF 35 TO 45 KNOTS AND FREQUENT LIGHTNING STRIKES. ...WIND AND SEA IMPACT... SMALL CRAFT SHOULD EXERCISE CAUTION TONIGHT BEYOND 20 MILES FROM THE COAST FOR SOUTH WINDS AROUND 15 KNOTS...PRODUCING CHOPPY WAVES. SEAS WILL REACH TO AROUND 5 TO 6 FEET WELL OFFSHORE. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY. DRY CONDITIONS FRIDAY MAY PRESENT A FIRE WEATHER HAZARD FOR A PORTION OF THE AREA. .SPOTTER INFORMATION STATEMENT... SPOTTERS ARE REQUESTED TO MONITOR THE WEATHER AND SELF ACTIVATE IF NEEDED. KELLY/PENDERGRAST
In the hours before
Special weather statement, Apr 28, 3:14 PM EDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
314 PM EDT THU APR 28 2011
FLZ041-044-141-282000-
COASTAL VOLUSIA COUNTY-INLAND VOLUSIA COUNTY-NORTHERN LAKE COUNTY-
314 PM EDT THU APR 28 2011
...A SIGNIFICANT WEATHER ADVISORY IS IN EFFECT FOR STRONG WIND GUSTS
BETWEEN 45 AND 55 MPH AND SMALL HAIL OVER NORTHERN LAKE COUNTY...
NORTHERN VOLUSIA COUNTY...
* UNTIL 400 PM EDT.
AT 312 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STORM CAPABLE OF PRODUCING STRONG WINDS AND SMALL HAIL 9 MILES
SOUTHWEST OF PIERSON...MOVING EAST AT 20 MPH.
THE PRIMARY THREAT WILL BE FREQUENT 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 2923 8100 2903 8163 2914 8165 2929 8165
2931 8168 2933 8167 2938 8147 2940 8142
2927 8140 2927 8116 2941 8116 2943 8109
TIME...MOT...LOC 1913Z 249DEG 19KT 2916 8156
SEDLOCKThe office that day
Everything else NWS Melbourne, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 28, 3:30 PM EDT | Special Marine Warning | MLB | 110 min | |
| Apr 28, 4:11 PM EDT | Severe Thunderstorm Warning | MLB | Indian River, Saint Lucie | 24 min |
| Apr 28, 5:44 PM EDT | Special Weather Statement | MLB | Okeechobee, Osceola | 61 min |
| Apr 28, 6:18 PM EDT | Special Weather Statement | MLB | Brevard, Indian River | 57 min |
| Apr 28, 6:37 PM EDT | Special Marine Warning | MLB | 53 min | |
| Apr 28, 6:48 PM EDT | Severe Thunderstorm Warning | MLB | Brevard | 42 min |
| Apr 28, 6:54 PM EDT | Severe Thunderstorm Warning | MLB | Okeechobee | 51 min |
| Apr 28, 7:52 PM EDT | Special Weather Statement | MLB | Saint Lucie | 38 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.