Alert archive / Florida / Severe Thunderstorm Warnings in 2003
Severe Thunderstorm Warning 21, NWS Melbourne, FL
NWS Melbourne, FL issued this severe thunderstorm warning at Mar 17, 2003, 4:31 PM EST for Lake County, Volusia County, Florida. It was in force for 44 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
- Mar 17, 2003, 4:31 PM EST (21:31 UTC)
- Expired
- Mar 17, 2003, 5:15 PM EST
- In force
- 44 min
- Issued by
- NWS Melbourne, FL
- Area
- Counties, with a storm outline in the text
Counties Lake County, FL, Volusia County, FL
The radar
The Jacksonville radar (KJAX), 139 km from the middle of the area, began a volume at 21:17 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, 9.5 hours before the alert went out and 131 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
- 198 J/kg
- Mixed-layer CIN
- -78 J/kg
- Mixed-layer LCL
- 774 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 245 m²/s²
- 0-3 km storm-relative helicity
- 204 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.3
The text
As transmitted, in the capitals the NWS used until 2016.
303 WUUS52 KMLB 172131 SVRMLB FLC069-127-172215- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MELBOURNE FL 431 PM EST MON MAR 17 2003 THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTH CENTRAL LAKE COUNTY NORTHWESTERN VOLUSIA COUNTY IN EAST CENTRAL FLORIDA * UNTIL 515 PM EST * AT 422 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 16 MILES SOUTH OF LAKE GEORGE...OR ABOUT 8 MILES NORTHWEST OF PAISLEY...MOVING NORTHEAST AT 30 MPH. * THE SEVERE THUNDERSTORM WILL BE... NEAR PIERSON...6 MILES NORTHWEST OF BARBERVILLE...6 MILES SOUTHEAST OF LAKE GEORGE AT 450 PM EST LARGE HAIL...EXCESSIVE LIGHTNING AND DAMAGING WINDS ARE LIKELY. TAKE COVER IN A STURDY BUILDING UNTIL THE STORM PASSES. LAT...LON 2909 8174 2899 8157 2945 8116 2959 8139 $$ MJG
The office that day
Everything else NWS Melbourne, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 17, 3:00 PM EST | Special Marine Warning | MLB | 90 min | |
| Mar 17, 3:33 PM EST | Special Marine Warning | MLB | 117 min | |
| Mar 17, 3:47 PM EST | Severe Thunderstorm Warning | MLB | Brevard | 43 min |
| Mar 17, 4:05 PM EST | Severe Thunderstorm Warning | MLB | Orange | 55 min |
| Mar 17, 4:07 PM EST | Tornado Warning | MLB | Brevard | 38 min |
| Mar 17, 4:43 PM EST | Severe Thunderstorm Warning | MLB | Brevard | 47 min |
| Mar 17, 5:07 PM EST | Special Marine Warning | MLB | 113 min | |
| Mar 17, 5:07 PM EST | Special Marine Warning | MLB | 113 min | |
| Mar 17, 5:15 PM EST | Severe Thunderstorm Warning | MLB | Brevard | 60 min |
| Mar 17, 6:49 PM EST | Special Marine Warning | MLB | 86 min | |
| Mar 17, 6:49 PM EST | Special Marine Warning | MLB | 86 min |
Nearby
Severe Thunderstorm Warnings in Florida, 2003Every severe thunderstorm warning in 2003
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.