Alert archive / Florida / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 109, NWS Tampa Bay, FL
NWS Tampa Bay, FL issued this severe thunderstorm warning at Jul 8, 2001, 3:14 PM EDT for Sarasota County, Florida. It was in force for 31 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 8, 2001, 3:14 PM EDT (19:14 UTC)
- Expired
- Jul 8, 2001, 3:45 PM EDT
- In force
- 31 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 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 233 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
- 1418 J/kg
- Mixed-layer CIN
- -21 J/kg
- Mixed-layer LCL
- 867 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 10 m²/s²
- 0-3 km storm-relative helicity
- 18 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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 Jul 8, 2:14 PM EDT, 1 hour earlier.
Area forecast discussion, Jul 8, 2:14 PM EDT, 1 hour before
WEST CENTRAL AND SOUTHWEST FLORIDA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 214 PM EDT SUN JUL 8 2001 PATTERN FOR THE NEXT SEVERAL DAYS ALREADY SETTING UP. NLY UPPER FLOW AROUND THE THE LARGE 5H RIDGE OVER THE CNTRL U.S. IN PLACE...FOLLOWED BY NWLY FLOW ALOFT THROUGH THE COMING WEEK DUE TO SUSTAINED 5H TROFFING OVER THE ERN STATES. SFC RIDGE AXIS ALREADY HAS SAGGED TO THE S PNSULA...TO ONLY GET SHOVED FURTHER SOUTH TO THE FL STRAITS ON MONDAY THROUGH THE WEEK. ABOVE SETS UP A LENGTHY PERIOD OF WLY BNDRY FLOW FAVORING SCATTERED MAINLY MORNING TILL MID AFTERNOON DIURNAL SHWRS/TSTMS DAILY. TEMPS WILL BE QUITE MUGGY WITH BNDRY FLOW OFF MID 80S GULF WATER TEMPS... WITH 75-80 MINS...LOW 90S MAXES...AND ABOVE NORMAL HUMIDITY. INCREASED DAYTIME HUMIDITY WILL LIKELY LEAD TO AFTN HEAT INDEX VALUES BETWEEN 100 AND 105 OUTSIDE ANY TEMPORARY SHOWER RELIEF. SHORT TERM...EXPECT 40-50 POPS FOR SCTD DIURNAL CONVECTION INTO THIS EVENING 50-60 POPS MONDAY AS WEAK UPPER IMPULSES AND HEATING PROVIDE ADEQUATE LIFT FOR SHWRS/TSTMS. NNELY UPPER FLOW WILL LEAD TO EXTENSIVE CONVECTION BLOWOFF CLOUDINESS DURING THE LATE DAY HRS TODAY AND MONDAY...WITH PREMISE FOR SOME SCTD LINGERING R- FROM TSTM DEBRIS CLOUDINESS INTO THE EVENINGS. WITH UPPER FLOW BECOMING MORE NWLY TUESDAY THROUGH THE REMAINDER OF THE WEEK...EXPECT JUST TYPICAL WLY SFC FLOW PATTERN WITH SUB CLIMO 40-50 POPS...WITH JUST ISOLATED EVENING SHOWERS UNDER LESS LATE DAY DEBRIS CLOUDINESS. PATTERN THROUGH THE WEEK NOT FAVORABLE FOR RELIEVING THE RAINFALL DEFICIT FOR THE COASTAL COUNTIES WITH TYPICALLY LIGHTER RAINFALL AMOUNTS UNDER SCTD EARLIER DAY SHWRS/TSTMS. MARINE...EXPECT SUSTAINED WLY WINDS OF 10 KNOTS THROUGH THE WEEK WITH PROBABLE 10-15 KNOTS NEAR SHORE DURING THE AFTERNOONS WITH ADDED ONSHORE SEA BREEZE COMPONENT. PRELIM NUMBERS TPA 78/89/79/89 3534 FMY 75/91/76/90 3534 TBW...NONE. DMR
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.