Alert archive / Florida / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 104, NWS Tampa Bay, FL
NWS Tampa Bay, FL issued this severe thunderstorm warning at Jun 30, 2001, 4:12 PM EDT for Sarasota County, Florida. It was in force for 48 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
- Jun 30, 2001, 4:12 PM EDT (20:12 UTC)
- Expired
- Jun 30, 2001, 5:00 PM EDT
- In force
- 48 min
- Issued by
- NWS Tampa Bay, FL
- Area
- Whole counties
County Sarasota County, FL
The radar
The Tampa radar (KTBW), 58 km from the middle of the area, began a volume at 20:14 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, 8.2 hours before the alert went out and 58 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
- 1195 J/kg
- Mixed-layer CIN
- -34 J/kg
- Mixed-layer LCL
- 878 m above ground
- 0-6 km bulk shear
- 5 kt
- 0-1 km storm-relative helicity
- 9 m²/s²
- 0-3 km storm-relative helicity
- 37 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 KTBW 302012 SVRTBW FLC115-302100- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 412 PM EDT SAT JUN 30 2001 THE NATIONAL WEATHER SERVICE IN RUSKIN HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SARASOTA COUNTY IN FLORIDA. * UNTIL 500 PM EDT. * AT 412 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM WITH LARGE HAIL...OVER CENTRAL SARASOTA COUNTY...MOVING NORTHWEST AT 20 MPH. * THE SEVERE THUNDERSTORM WILL AFFECT... MYAKKA RIVER STATE PARK. BEE RIDGE. FRUITVILLE. DESOTO LAKES. SEVERE THUNDERSTORMS CONTAIN WIND GUSTS OF 60 MPH OR HIGHER...AND HAIL THE SIZEg OF DIMES OR LARGER. MOVE TO A PLACE OF SAFETY. FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY. DO NOT USE ELECTRICAL APPLIANCES OR TELEPHONES. $$ 13 NNNN
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 Tampa Bay, FL wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 30, 12:54 PM EDT, 3 hours 18 minutes earlier.
Area forecast discussion, Jun 30, 12:54 PM EDT, 3 hours 18 minutes before
WEST CENTRAL AND SOUTHWEST FLORIDA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 1254 PM EDT SAT JUN 30 2001 NEAR TERM AN EASTERLY WAVE IN THE EASTERN GULF IS MOVING VERY LITTLE TODAY. CONVECTION IS ON THE INCREASE AND AN UPPER LOW OVER THE WESTERN GULF IS DRIFTING TO THE SOUTH APPARENTLY ENHANCING DIFLUENCE IN THE AREA. WE WILL HAVE TO KEEP AN EYE TO OUR WEST DUE TO ITS POTENTIAL EFFECT ON OUR COASTAL FORECAST...BUT DEEP LAYER EASTERLY FLOW IS EXPECTED TO CONTINUE AT LEAST THROUGH MID WEEK THE SYSTEM SHOULD CONTINUE ITS TREK ACROSS THE GULF OF MEXICO. OVER THE LONGER TERM TWO SYSTEMS WILL BE INFLUENCING OUR WEATHER. THE FIRST IS A TUTT LOW CUTTING OFF EAST OF THE BAHAMAS. I LIKE THE WAY THE AVN HANDLES THIS THE BEST BUT WITH THE CAVEAT THAT MODELS ARE NOTORIOUSLY POOR WITH HANDLING THESE SYSTEMS. STILL THE BEST GUESS IS THAT THE UPPER LOW WILL DRIFT SOUTH WEST ACROSS CUBA AND INTO THE WESTERN CARIBBEAN...KEEPING FLORIDA IN ITS SUBSIDENT SIDE. THIS WILL EFFECTIVELY LESSEN CONVECTIVE DEVELOPMENT STARTING MONDAY. BUT OUR AREA MAY BE A LITTLE FAR WEST TO BE GREATLY INFLUENCED BY THE SYSTEM...AT LEAST MONDAY. THE WAVE IN THE GULF MY ALSO INFLUENCE THE WEATHER...PERHAPS PRODUCING A LITTLE SUBSIDENCE OF ITS OWN...OR IT COULD ENHANCE LOW LEVEL CONVERGENCE OVER THE AREA. A LOT OF IFS...SO I WILL TREND TOWARDS A BLEND OF PERSISTENCE AND CLIMATOLOGY. THE SECOND SYSTEM INFLUENCING OUR WEATHER IS A VERY DEEP LONGWAVE TROUGH DIGGING SOUTH ALONG THE EAST COAST BY MID WEEK OR SO. THIS WILL BRING A SLOW MOVING/STALLING FRONT TO TO STATE PLUS WESTERLY FLOW. I WILL REWORD THE EXTENDED FORECAST FOR MOSTLY MORNING CONVECTION AND INCREASE OVERNIGHT LOW TEMPERATURES JUST A HAIR. MARINE AND FIRE WEATHER...JUST IN A WATCH MODE ON THE WAVE IN THE GULF. I AM NOT REALLY EXPECTING IT TO HAVE MUCH INFLUENCE OVER THE MARINE FORECAST IN THE SHORT TERM. PRELIMINARY NUMBERS TPA BB 074/090 075/090 075 3534 FMY BB 074/090 075/091 075 3534 .TBW...NONE. SOBIEN
The office that day
Everything else NWS Tampa Bay, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 30, 5:49 PM EDT | Severe Thunderstorm Warning | TBW | Citrus | 26 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.