Alert archive / Florida / Severe Thunderstorm Warnings in 2010
Severe Thunderstorm Warning 43, NWS Melbourne, FL
NWS Melbourne, FL issued this severe thunderstorm warning at Jul 15, 2010, 4:52 PM EDT for Lake County, Orange County, Florida. It was in force for 38 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jul 15, 2010, 4:52 PM EDT (20:52 UTC)
- Expired
- Jul 15, 2010, 5:30 PM EDT
- In force
- 38 min
- Issued by
- NWS Melbourne, FL
- Area
- Storm-based polygon
Counties Lake County, FL, Orange County, FL
The radar
The Melbourne radar (KMLB), 103 km from the middle of the area, began a volume at 20:55 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
Tampa Bay, FL (KTBW), launched 12:00Z, 8.9 hours before the alert went out and 135 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
- 2048 J/kg
- Mixed-layer CIN
- -16 J/kg
- Mixed-layer LCL
- 739 m above ground
- 0-6 km bulk shear
- 5 kt
- 0-1 km storm-relative helicity
- -32 m²/s²
- 0-3 km storm-relative helicity
- -22 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Jul 15, 3:55 PM EDT, 57 minutes earlier.
Area forecast discussion, Jul 15, 3:55 PM EDT, 57 minutes before
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HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE MELBOURNE FL 1224 PM EDT THU JUL 15 2010 AMZ550-552-555-570-572-575-FLZ041-044>047-053-054-058-059-064-141- 144-147-160430- 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- 1224 PM EDT THU JUL 15 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL FLORIDA. .DAY ONE...THIS AFTERNOON AND TONIGHT. ...THUNDERSTORM IMPACT... THE ATMOSPHERE IS MORE MOIST AND SLIGHTLY MORE UNSTABLE TODAY THAN PREVIOUS DAYS. AS A RESULT...ISOLATED LIGHTNING STORMS HAVE DEVELOPED LATE THIS MORNING DESPITE A VEIL OF MID LEVEL CLOUDINESS. THESE CLOUDS ARE EXPECTED TO THIN AND ADDITIONAL LIGHTNING STORMS WILL DEVELOP AS SURFACE HEATING INCREASES AND THE EAST COAST SEA BREEZE PUSHES INLAND. THE PRIMARY HAZARDS WILL BE FREQUENT TO EXCESSIVE LIGHTNING AND GUSTY WINDS FROM 40 TO 50 MPH. EXPECT STORM MOVEMENT TO BE TOWARD THE NORTH OR NORTHWEST AT 10 TO 15 MPH. ...FLOOD IMPACT... LOCALLY HEAVY RAIN MAY ACCUMULATE UP TO 3 INCHES IN SOME SPOTS CAUSING TEMPORARY FLOODING OF LOW LYING AND POOR DRAINAGE AREAS. ...MARINE THUNDERSTORM GUST IMPACT... STRONGER AFTERNOON SHOWERS AND THUNDERSTORMS WILL BE CAPABLE OF PRODUCING CLOUD TO GROUND AND CLOUD TO WATER LIGHTNING STRIKES...AND WIND GUSTS TO 40 KNOTS OVER INLAND LAKES...AND ON THE INTRACOASTAL AND NEARSHORE WATERS. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY. SURFACE RIDGE AXIS OVER CENTRAL FLORIDA WILL SLOWLY LIFT INTO NORTH FLORIDA BY THE END OF THE WEEK AND REMAIN THERE THROUGH EARLY NEXT WEEK. SCATTERED AFTERNOON AND EVENING LIGHTNING STORMS ARE EXPECTED THROUGH THE WEEK...WITH THE HIGHEST COVERAGE EXPECTED OVER INTERIOR PORTIONS. THE PRIMARY THREATS WILL BE CLOUD TO GROUND LIGHTNING AND GUSTY WINDS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY. SEDLOCK/KELLY
In the hours before
Special weather statement, Jul 15, 12:37 PM EDT, 4 hours 15 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 |
|---|---|---|---|---|
| Jul 15, 12:37 PM EDT | Special Weather Statement | MLB | Brevard | 38 min |
| Jul 15, 4:09 PM EDT | Special Weather Statement | MLB | Lake | 111 min |
| Jul 15, 4:23 PM EDT | Severe Thunderstorm Warning | MLB | Lake, Orange, Osceola | 37 min |
| Jul 15, 5:13 PM EDT | Severe Thunderstorm Warning | MLB | Lake, Volusia | 31 min |
Nearby
Severe Thunderstorm Warnings in Florida, 2010Every severe thunderstorm warning in 2010
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.