Alert archive / Florida / Severe Thunderstorm Warnings in 2005

Severe Thunderstorm Warning 45, NWS Tampa Bay, FL

August 4, 2005Highlands County, Florida

NWS Tampa Bay, FL issued this severe thunderstorm warning at Aug 4, 2005, 9:00 PM EDT for Highlands County, Florida. It was in force for 30 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
Aug 4, 2005, 9:00 PM EDT (01:00 UTC)
Expired
Aug 4, 2005, 9:30 PM EDT
In force
30 min
Issued by
NWS Tampa Bay, FL
Area
Counties, with a storm outline in the text

County Highlands County, FL

The radar

The Tampa radar (KTBW), 97 km from the middle of the area, began a volume at 01:00 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.

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched one storm report to this severe thunderstorm warning; the first came 10 minutes after it went out.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Tampa Bay, FL (KTBW), launched 00:00Z, 1.0 hours before the alert went out and 97 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-pSkew-T log-p diagram, Tampa Bay, FL at 00:00Z on 2005-08-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2566 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Tampa Bay, FL at 00:00Z on 2005-08-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -16 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
2566 J/kg
Mixed-layer CIN
-6 J/kg
Mixed-layer LCL
1040 m above ground
0-6 km bulk shear
6 kt
0-1 km storm-relative helicity
-16 m²/s²
0-3 km storm-relative helicity
18 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 050101
SVRTBW
FLC055-050130-
/O.NEW.KTBW.SV.W.0045.050805T0100Z-050805T0130Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
900 PM EDT THU AUG 4 2005

THE NATIONAL WEATHER SERVICE IN RUSKIN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN HIGHLANDS COUNTY IN FLORIDA.

* UNTIL 930 PM EDT

* AT 900 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM WITH LARGE HAIL AND DAMAGING WINDS...OVER AVON
  PARK...MOVING SOUTH AT 5 MPH.

* THE SEVERE THUNDERSTORM WILL AFFECT...
  AVON PARK.
  SEBRING SHORES.
  SEBRING.
  LAKE JOSEPHINE.

SEVERE THUNDERSTORMS CONTAIN WIND GUSTS OF 60 MPH OR HIGHER...AND
HAIL THE SIZE OF PENNIES OR LARGER. MOVE TO A PLACE OF SAFETY.

REPORT SEVERE WEATHER OR DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY
OR YOUR COUNTY EMERGENCY MANAGEMENT. THEY WILL RELAY YOUR REPORT TO
THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN RUSKIN.

&&

LAT...LON 2764 8137 2764 8150 2742 8153 2741 8141

$$

25
1 follow-up statement
000 
WWUS52 KTBW 050116
SVSTBW

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
915 PM EDT THU AUG 4 2005

FLC055-050130-
/O.CON.KTBW.SV.W.0045.000000T0000Z-050805T0130Z/
HIGHLANDS-
915 PM EDT THU AUG 4 2005

...A SEVERE THUNDERSTORM WARNING CONTINUES FOR NORTHWESTERN HIGHLANDS
COUNTY UNTIL 930 PM EDT...

AT 915 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
SEVERE THUNDERSTORM OVER AND TO THE WEST OF SEBRING...MOVING SOUTH 
AT 5 MPH.

THE SEVERE THUNDERSTORM WILL AFFECT...
  SEBRING SHORES.
  SEBRING.

THE SEVERE THUNDERSTORM IS ALSO CAPABLE OF PRODUCING...  
  60 MPH WIND GUSTS AND PENNY SIZE HAIL.
  EXCESSIVE AND DEADLY CLOUD-TO-GROUND LIGHTNING.

REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY
WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST
OFFICE IN RUSKIN.

&&

LAT...LON 2764 8137 2764 8150 2742 8153 2741 8141

$$

25

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 Aug 4, 1:28 PM EDT, 7 hours 32 minutes earlier.

Area forecast discussion, Aug 4, 1:28 PM EDT, 7 hours 32 minutes before
WEST CENTRAL AND SOUTHWEST FLORIDA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
128 PM EDT THU AUG 4 2005

.SHORT TERM (TONIGHT-SAT)...12Z NAM/ETA HAS BECOME A BIT MORE
AGGRESSIVE IN BUILDING SURFACE RIDGE SOUTHWARD FROM THE MID-ATLANTIC
STATES FRIDAY AND ESPECIALLY ON SATURDAY. SHOULD THIS VERIFY...RAIN
CHANCES WILL BE HIGHER ALONG THE GULF COAST FRIDAY...AND ESPECIALLY
SATURDAY AFTERNOON WHEN ANY GULF BREEZE THAT DOES DEVELOP GETS
PINNED TO THE COAST. PREVIOUS FORECAST...WHICH WAS WEIGHTED TOWARD
THE GFS SOLUTION...HAD HIGHEST POPS IN THE INTERIOR WITH LOWER POPS
ALONG THE COAST. IN FACT THE LATEST 12Z GFS SOLUTION...AS WELL
AS EARLIER ETA/NAM RUNS...SUPPORT THE INLAND SCENARIO. ITS PROBABLY
NOT PRUDENT AT THIS TIME TO MAKE VERY LARGE CHANGES IN THE FORECAST.

FOR NOW...WILL BRING 40 POPS BACK TO THE COASTAL AREAS FOR THE NEXT
TWO AFTERNOONS WHICH WILL BE A GOOD TRANSITION IF WE END UP HAVING
TO RAMP UP COASTAL POPS IN THE FRIDAY MORNING PACKAGE.

TEMPS LOOK GOOD AND ONLY MINOR TWEAKS MADE THERE. LEANING TOWARD
MAV NUMBERS...BUT AGAIN IF STRONGER EASTERLY WINDS PREVAIL ON
SATURDAY PER ETA/NAM SOLUTION THEN SATURDAY AFTERNOON MAX TEMPS WILL
HAVE TO BE INCREASED A COUPLE OF DEGREES ALONG THE COAST.

&&

.LONG TERM (SAT NIGHT-THU)...UPPER LEVEL RIDGE WILL REMAIN OVER THE
AREA WITH SURFACE RIDGE AXIS MEANDERING OVER THE CENTRAL FLORIDA
PENINSULA THROUGH THE PERIOD.  THIS WILL KEEP RATHER LIGHT FLOW
ACROSS THE REGION ALBEIT A LITTLE MORE SOUTH TO SOUTHWEST ACROSS
THE NATURE COAST AND A LITTLE MORE SOUTHEASTERLY ACROSS SOUTHWEST
FLORIDA.  DAYTIME HEATING WILL COMBINE WITH THE MOISTURE IN PLACE
AND THE SEA/LAKE BREEZES TO CAUSE SCATTERED MAINLY AFTERNOON AND
EVENING THUNDERSTORMS EACH DAY.  TEMPERATURES WILL BE NEAR NORMAL
THROUGH THE PERIOD.

&&

.MARINE...RIDGE AXIS WILL SLOWLY CREEP NORTH TO THE CENTRAL WATERS
AND REMAIN THERE THROUGH THE PERIOD. THIS WILL KEEP WINDS AND SEAS
ON THE LIGHT SIDE WITH THE ONLY HAZARD THROUGH THE PERIOD BEING THE
ISOLATED TO OCCASIONALLY SCATTERED THUNDERSTORMS.

&&

.FIRE WEATHER...NO HIGHLIGHTS.

&&

.PRELIMINARY POINT TEMPS/POPS...
TPA 76 92 76 90 / 00 40 20 40
FMY 76 93 75 93 / 00 40 20 40
GIF 75 94 75 94 / 20 40 20 40
SRQ 75 91 75 90 / 00 40 20 40
BKV 72 92 72 92 / 00 40 20 40

&&

.TBW WATCHES/WARNINGS/ADVISORIES...NONE.

SHORT TERM...JILLSON
LONG TERM...CLOSE
Hazardous weather outlook, Aug 4, 4:41 AM EDT, 16 hours 19 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
441 AM EDT THU AUG 4 2005

FLZ039-042-043-048>052-055>057-060>062-065-041400-
LEVY-CITRUS-SUMTER-HERNANDO-PASCO-PINELLAS-HILLSBOROUGH-POLK-
MANATEE-HARDEE-HIGHLANDS-SARASOTA-DE SOTO-CHARLOTTE-LEE-
441 AM EDT THU AUG 4 2005

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST
FLORIDA AND WEST CENTRAL FLORIDA.

.DAY ONE...TODAY AND TONIGHT

SCATTERED AFTERNOON SHOWERS AND THUNDERSTORMS ARE EXPECTED ACROSS
MOST OF WEST CENTRAL AND SOUTHWEST FLORIDA. THE ONLY EXCEPTION
WILL BE NEAR THE COAST FROM CAPE CORAL NORTH TO NEW PORT RICHEY
WHERE ISOLATED SHOWERS AND THUNDERSTORMS ARE EXPECTED. THE BEST
COVERAGE TODAY IS AGAIN EXPECTED TO BE IN THE INLAND PORTIONS OF
THE NATURE COAST COUNTIES. THE STRONGER STORMS WILL BRING DANGEROUS
CLOUD TO GROUND LIGHTNING... HEAVY RAINS...AND BRIEF GUSTY WINDS.

OUTSIDE OF TODAYS STORMS...HEAT INDICES WILL RISE TO AS HIGH AS
104 DEGREES. THE WARMEST VALUES SHOULD BE FROM THE TAMPA BAY AREA
SOUTH WHERE FEWER THUNDERSTORMS WILL ALLOW TEMPERATURES TO REMAIN
HIGH THROUGH THE AFTERNOON.  DRINK PLENTY OF WATER...BEFORE YOU GET
THIRSTY. WEAR LIGHTWEIGHT AND LIGHT COLORED CLOTHING. RESERVE
STRENUOUS EXERCISE FOR EARLY MORNING OR EVENING HOURS. STAY NEAR
AIR CONDITIONED LOCATIONS IF POSSIBLE.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED EACH DAY WITH THE
STRONGER STORMS PRODUCING BRIEFLY GUSTY WINDS...HEAVY RAINS...AND
DANGEROUS LIGHTNING.

IN ADDITION...HEAT INDICES ARE EXPECTED TO TOP OUT A LITTLE ABOVE 100
DEGREES EACH AFTERNOON.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE REQUIRED.

In the hours before

Special weather statement, Aug 4, 6:39 PM EDT, 2 hours 21 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
639 PM EDT THU AUG 4 2005

FLZ057-042330-
HIGHLANDS-
639 PM EDT THU AUG 4 2005

...STRONG THUNDERSTORMS APPROACHING SOUTHERN HIGHLANDS COUNTY...

THUNDERSTORMS MOVING SLOWLY NORTH...WILL AFFECT RURAL SOUTHERN
HIGHLANDS COUNTY...BETWEEN VENUS AND BRIGHTON...UNTIL 730 PM EDT.
GUSTY WINDS TO 40 MPH AND FREQUENT CLOUD TO GROUND LIGHTNING IS
EXPECTED. RAINFALL RATES OF 1 TO 2 INCHES PER HOUR WILL OCCUR.
MOTORISTS CAN EXPECT PONDING OF WATER ON ROADS...AND MINOR FLOODING
OF POOR DRAINAGE AREAS.
Special weather statement, Aug 4, 7:08 PM EDT, 1 hour 52 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
708 PM EDT THU AUG 4 2005

FLZ052-050000-
POLK-
708 PM EDT THU AUG 4 2005

...STRONG THUNDERSTORMS WILL AFFECT CENTRAL POLK COUNTY...

...MOVING EAST AT 5 MPH...WILL AFFECT LAKE
ALFRED...INWOOD...AUBURNDALE...CYPRESS GARDENDS...EAGLE LAKE...AND
WINTER HAVEN...UNTIL 800 PM EDT. GUSTY WINDS UP TO 40 MPH WILL
OCCUR. FREQUENT CLOUD TO GROUND LIGHTNING IS EXPECTED. IF CAUGHT
OUTSIDE...CROUCH DOWN IN A LOW SPOT...AWAY FROM TALL OBJECTS. HAIL
UP TO ONE HALF INCH IN DIAMETER IS EXPECTED.

RD
Special weather statement, Aug 4, 7:30 PM EDT, 1 hour 30 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
730 PM EDT THU AUG 4 2005

FLZ057-050030-
HIGHLANDS-
730 PM EDT THU AUG 4 2005

...STRONG THUNDERSTORMS WILL AFFECT SOUTH AND SOUTHEAST HIGHLANDS
COUNTY...

STRONG THUNDERSTORMS...NEARLY STATIONARY...WILL AFFECT
ARCHBOLD...UNTIL 830 PM EDT. GUSTY WINDS UP TO 40 MPH WILL OCCUR.
FREQUENT CLOUD TO GROUND LIGHTNING IS EXPECTED. IF CAUGHT
OUTSIDE...CROUCH DOWN IN A LOW SPOT...AWAY FROM TALL OBJECTS.
RAINFALL RATES OF 1 TO 2 INCHES PER HOUR ARE EXPECTED.

RKR
Special weather statement, Aug 4, 8:30 PM EDT, 30 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
830 PM EDT THU AUG 4 2005

FLZ052-050115-
POLK-
830 PM EDT THU AUG 4 2005

...STRONG THUNDERSTORMS OVER EASTERN POLK COUNTY...

THUNDERSTORMS...MOVING EAST AT 5 TO 10 MPH...WILL AFFECT RURAL
EASTERN POLK COUNTY...FROM POLK CITY TO FROSTPROOF...AND EASTWARD TO
THE KISSIMMEE RIVER...UNTIL 915 PM EDT. GUSTY WINDS 40 TO 50 MPH MAY
CAUSE LOOSE OBJECTS TO BLOW AROUND. MINOR DAMAGE TO TREE LIMBS AND
WIRES IS POSSIBLE. EXCESSIVE CLOUD TO GROUND LIGHTNING IS EXPECTED.
HAIL UP TO ONE HALF INCH IN DIAMETER MAY ALSO OCCUR WITH THIS
ACTIVITY. RAINFALL RATES OF 1 TO 2 INCHES PER HOUR WILL OCCUR.
MOTORISTS CAN EXPECT PONDING OF WATER ON ROADS...AND MINOR FLOODING
OF POOR DRAINAGE AREAS.
Special weather statement, Aug 4, 8:41 PM EDT, 19 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
841 PM EDT THU AUG 4 2005

FLZ056-050145-
HARDEE-
841 PM EDT THU AUG 4 2005

...STRONG THUNDERSTORMS WILL AFFECT HARDEE COUNTY...

THUNDERSTORMS DRIFTING SOUTH WILL AFFECT ZOLFO SPRINGS AND
WAUCHULA...UNTIL 945 PM EDT. GUSTY WINDS 40 TO 50 MPH MAY CAUSE
LOOSE OBJECTS TO BLOW AROUND. MINOR DAMAGE TO TREE LIMBS AND WIRES
IS POSSIBLE. EXCESSIVE CLOUD TO GROUND LIGHTNING IS EXPECTED IF
OUTSIDE...CROUCH DOWN IN A LOW SPOT...AWAY FROM TALL OBJECTS. IF
INDOORS...REFRAIN FROM USING ELECTRICAL APPLIANCES. HAIL UP TO ONE
HALF INCH IN DIAMETER IS EXPECTED. RAINFALL RATES OF 1 TO 2 INCHES
PER HOUR WILL OCCUR. MOTORISTS CAN EXPECT PONDING OF WATER ON
ROADS...AND MINOR FLOODING OF POOR DRAINAGE AREAS.

RKR
Special weather statement, Aug 4, 8:48 PM EDT, 12 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
848 PM EDT THU AUG 4 2005

FLZ057-050130-
HIGHLANDS-
848 PM EDT THU AUG 4 2005

...STRONG THUNDERSTORM MOVING INTO NORTHERN HIGHLANDS COUNTY...

A THUNDERSTORM...MOVING SOUTH AT 10 MPH...WILL AFFECT AVON PARK AND
SEBRING...UNTIL 930 PM EDT. GUSTY WINDS 40 MPH MAY CAUSE LOOSE
OBJECTS TO BLOW AROUND. MINOR DAMAGE TO TREE LIMBS AND WIRES IS
POSSIBLE. FREQUENT CLOUD TO GROUND LIGHTNING IS EXPECTED.  HAIL UP
TO ONE HALF INCH IN DIAMETER IS ALSO POSSIBLE. TORRENTIAL RAINS WILL
CAUSE PONDING OF WATER ON ROADS...AND MINOR FLOODING OF POOR
DRAINAGE AREAS.

The office that day

Everything else NWS Tampa Bay, FL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 5, 2:07 PM EDTSevere Thunderstorm WarningTBWHillsborough23 min
Aug 5, 3:22 PM EDTSevere Thunderstorm WarningTBWPolk18 min
Aug 5, 3:48 PM EDTSevere Thunderstorm WarningTBWHillsborough20 min

Nearby

Severe Thunderstorm Warnings in Florida, 2005Every severe thunderstorm warning in 2005

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.