Alert archive / Florida / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 7, NWS Melbourne, FL
NWS Melbourne, FL issued this severe thunderstorm warning at Mar 29, 2001, 11:43 AM EST for Seminole County, Florida. It was in force for 62 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Mar 29, 2001, 11:43 AM EST (16:43 UTC)
- Expired
- Mar 29, 2001, 12:45 PM EST
- In force
- 62 min
- Issued by
- NWS Melbourne, FL
- Area
- Whole counties
County Seminole County, FL
The radar
The Melbourne radar (KMLB), 88 km from the middle of the area, began a volume at 16:44 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 29, 12:10 PM EST | Thunderstorm Wind 50 E | Sanlando Spgs, FL | Thunderstorm winds blew down a few trees in the Lake Brantley area 2 miles west of Sanlando Springs. |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Mar 29, 9:15 AM EST | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Cape Canaveral, FL (KXMR), launched 12:00Z, 4.7 hours before the alert went out and 77 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
- 647 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 626 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 185 m²/s²
- 0-3 km storm-relative helicity
- 307 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS52 KMLB 291645 SVRMLB FLC117-291745- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MELBOURNE FL 1143 AM EST THU MAR 29 2001 THE NATIONAL WEATHER SERVICE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SEMINOLE COUNTY IN EAST CENTRAL FLORIDA * UNTIL 1245 PM EST. * AT 1140 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM NEAR ALTAMONTE SPRINGS...MOVING NORTHEAST AT 35 MPH. * THE SEVERE THUNDERSTORM WILL BE... NEAR LONGWOOD...CASSELBERRY AT 1150 AM NEAR WINTER SPRINGS AT 1155 AM NEAR SANFORD AT 1205 PM EST. SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS IN EXCESS OF 58 MILES AN HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING AND VERY HEAVY RAIN. IF THE STORM APPROACHES YOU...MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR. VERY LARGE HAIL IS POSSIBLE WITH THIS SEVERE STORM. IF YOU ARE IN ITS PATH...PUT YOUR CAR IN A GARAGE AND MO.VE TO A STURDY BUILDING AWAY FROM WINDOWS. THESE STORMS PRODUCED UP TO ONE INCH SIZE HAIL IN ZELLWOOD. $$ LAT...LON 2869 8145 2860 8137 2875 8109 2884 8129 PB
The office that day
Everything else NWS Melbourne, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 29, 10:38 AM EST | Severe Thunderstorm Warning | MLB | Lake | 67 min |
| Mar 29, 11:01 AM EST | Severe Thunderstorm Warning | MLB | Orange | 59 min |
| Mar 29, 11:17 AM EST | Severe Thunderstorm Warning | MLB | Osceola | 58 min |
| Mar 29, 11:53 AM EST | Severe Thunderstorm Warning | MLB | Orange | 67 min |
| Mar 29, 12:12 PM EST | Severe Thunderstorm Warning | MLB | Volusia | 63 min |
| Mar 29, 12:15 PM EST | Severe Thunderstorm Warning | MLB | Osceola | 45 min |
| Mar 29, 12:34 PM EST | Severe Thunderstorm Warning | MLB | Brevard | 56 min |
| Mar 29, 1:05 PM EST | Severe Thunderstorm Warning | MLB | Osceola | 55 min |
| Mar 29, 1:22 PM EST | Severe Thunderstorm Warning | MLB | Brevard | 53 min |
| Mar 29, 2:33 PM EST | Severe Thunderstorm Warning | MLB | Okeechobee | 27 min |
| Mar 29, 2:40 PM EST | Severe Thunderstorm Warning | MLB | Indian River | 65 min |
| Mar 29, 3:45 PM EST | Severe Thunderstorm Warning | MLB | Indian River, Saint Lucie | 45 min |
| Mar 29, 4:30 PM EST | Severe Thunderstorm Warning | MLB | Saint Lucie | 45 min |
| Mar 29, 4:54 PM EST | Severe Thunderstorm Warning | MLB | Martin | 66 min |
| Mar 29, 5:20 PM EST | Severe Thunderstorm Warning | MLB | Saint Lucie | 25 min |
| Mar 29, 6:00 PM EST | Severe Thunderstorm Warning | MLB | Martin | 60 min |
Nearby
Severe Thunderstorm Warnings in Florida, 2001Every severe thunderstorm warning in 2001
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.