Alert archive / Florida / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 110, NWS Tampa Bay, FL

July 10, 2001Charlotte County, Florida

NWS Tampa Bay, FL issued this severe thunderstorm warning at Jul 10, 2001, 6:52 PM EDT for Charlotte County, Florida. It was in force for 38 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: Jul 10, 2001, 6:52 PM EDT (22:52 UTC)
Expired: Jul 10, 2001, 7:30 PM EDT
In force: 38 min
Issued by: NWS Tampa Bay, FL
Area: Whole counties

County Charlotte County, FL

The radar

The Tampa radar (KTBW), 100 km from the middle of the area, began a volume at 22:54 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
Jul 10, 7:00 PM EDT	Thunderstorm Wind	Punta Gorda, FL	Thunderstorm winds caused minor damage to a few homes and downed several large branches on Riverside Drive in the River Forrest mobile home park in Punta Gorda.

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 nearest sounding before it

Tampa Bay, FL (KTBW), launched 12:00Z, 10.9 hours before the alert went out and 100 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 2568 J/kg
Mixed-layer CIN: -1 J/kg
Mixed-layer LCL: 639 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 10 m²/s²
0-3 km storm-relative helicity: 13 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WUUS52 KTBW 102253
SVRTBW

FLC015-102330-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
652 PM EDT TUE JUL 10 2001

THE NATIONAL WEATHER SERVICE IN RUSKIN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN CHARLOTTE COUNTY IN FLORIDA.

* UNTIL 730 PM EDT.

* AT 652 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM WITH DAMAGING WINDS...OVER NORTHERN            
  CHARLOTTE COUNTY JUST NORTHEAST OF PUNTA GORDA...MOVING SOUTHEAST  
  AT 10 MPH.

* AT 642 PM EDT...THE PUBLIC ALSO REPORTED FUNNEL CLOUDS NEAR
  PUNTA GORDA.

* THE SEVERE THUNDERSTORM WILL AFFECT...
  PUNTA GORDA.
  CLEVELAND BY 650 PM EDT.
  

MOVE INSIDE A STURDY BUILDING. DAMAGING WIND...LARGE HAIL...
TORRENTIAL RAIN...AND DEADLY LIGHTNING ARE EXPECTED. STAY INSIDE AWAY
FROM WINDOWS UNTIL THE STORM HAS PASSED.

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE
INDOORS IMMEDIATELY. DO NOT USE ELECTRICAL APPLIANCES OR TELEPHONES.

SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE
WARNING. MOVE TO A PLACE OF SAFETY...AN INTERIOR ROOM IN THE LOWES?T
FLOOR OF YOUR HOUSE OR BUSINESS.

$$

LAT...LON 2702 8205 2688 8207 2684 8175 2701 8176

57
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 Jul 10, 1:41 PM EDT, 5 hours 11 minutes earlier.

Area forecast discussion, Jul 10, 1:41 PM EDT, 5 hours 11 minutes before

WEST CENTRAL AND SOUTHWEST FLORIDA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
141 PM EDT TUE JUL 10 2001

WESTERLY FLOW WELL ESTABLISHED BELOW 700 MB THIS AFTERNOON...AND
WILL GRADUALLY DEEPEN TO H50 AND ABOVE OVER THE NEXT 24-48H AS
EASTERN U.S. TROUGH AXIS TAKES OVER FLOW ALOFT.  IN FACT...
INDIVIDUAL WEAK SHORT WAVES (OR SHEAR AXES) WILL MAINTAIN TROUGHING
INTO THE WEEKEND.  IN SHORT...MUGGY NIGHTS AND STEAMY DAYS WITH THE
THREAT OF PCPN JUST ABOUT ANYTIME.

MODELS ARE IN GOOD AGREEMENT WITH THE LARGE PICTURE...BUT DIFFER IN
THE DETAILS.  TRYING TO PINPOINT FINER DETAILS IN THIS PATTERN IS
AKIN TO FINDING A NEEDLE IN A HAYSTACK...SO WILL KEEP A FOCUS ON
THE BROAD SCALE RATHER THAN THE SPECIFIC.

SHORT TERM:
CURRENTLY THE CENTRAL FA IS JUST GETTING GOING...WITH THE MAIN WX
STORY HEAT INDEX (100-105).  ACROSS THE N...TSTM TRAIN EXTENDS W FROM
CIT/LEV TO OFF APALACHICOLA.  PCPN FOCUS PROBABLY COMBO OF EARLIER
BOUNDARIES ALONG WITH WEAK PVA AREA AHEAD OF SHEAR ZONE (N FL/S GA)
WHILE CENTRAL ZONES ARE IN WEAK NVA.  EXPECT AT LEAST SCT COVERAGE TO
REACH THE CNTL/SW FA BY MID AFTERNOON.

OTHERWISE...COMBINATION OF BOUNDARIES...INSTABILITY...AND A SLOW
S SINKING OF THE SHEAR AXIS WILL PROVIDE PLENTY OF IMPETUS FOR
SCT-NUMEROUS SHOWERS AND TSTMS.  TIMING WILL GENERALLY FAVOR LATE
NIGHT THROUGH EARLY AFTN COAST AND DAYTIME THROUGH EVE INLAND.
HOWEVER...AVG STORM MOTION OF 15 KT COULD ALLOW GULF DEVELOPED
STORMS TO MAKE THEIR WAY INLAND...EVEN LATE AT NIGHT. DIURNAL
CONSIDERATIONS WILL KEEP NIGHTTIME CHANCES A SHADE LOWER.

HEAT INDEX VALUES WILL REMAIN HIGH OVERNIGHT (90+) IN URBAN AREAS...
BUT DAYTIME RAINS AND GULF BREEZES SHOULD KEEP VALUES NEAR 100 (OR
LESS) EACH DAY.

EXTENDED:
MORE OF THE SAME INTO THE WEEKEND.  12Z AVN/00Z MRF ACTUALLY
ENHANCE SFC-H70 SW FLOW...WHICH COULD ARGUE FOR EVEN MORE WIDESPREAD
COVERAGE FRI AND SAT.  SHADOW OF H50 TROUGH MAY HANG OVER THE E GULF
INTO EARLY NEXT WEEK...BUT WILL DROP BACK TO MORE CLIMO PCPN TRENDS
ON DAYS 6 AND 7.

MARINE:  W OR SW 10-15 KT RIGHT THROUGH THE PERIOD ON AVERAGE WITH
SCT-NMRS TSTMS.  'NUFF SAID.

FIRE WX:  NO HIGHLIGHTS.

PRELIM NUMBERS:
TPA TT 080/088 080/088 4646
FMY TT 076/090 077/090 3646

.TBW...NONE.

88/GOLDSMITH

Nearby

Severe Thunderstorm Warnings in Florida, 2001 Every 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.