Alert archive / Florida / Severe Thunderstorm Warnings in 2004

Severe Thunderstorm Warning 13, NWS Tampa Bay, FL

June 2, 2004Hernando County, Florida

NWS Tampa Bay, FL issued this severe thunderstorm warning at Jun 2, 2004, 1:44 PM EDT for Hernando County, Florida. It was in force for 46 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
Jun 2, 2004, 1:44 PM EDT (17:44 UTC)
Expired
Jun 2, 2004, 2:30 PM EDT
In force
46 min
Issued by
NWS Tampa Bay, FL
Area
Counties, with a storm outline in the text

County Hernando County, FL

The radar

The Tampa radar (KTBW), 89 km from the middle of the area, began a volume at 17:43 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

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

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 12:00Z, 5.7 hours before the alert went out and 89 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 12:00Z on 2004-06-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3944 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 12:00Z on 2004-06-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 63 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
3944 J/kg
Mixed-layer CIN
-20 J/kg
Mixed-layer LCL
650 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
63 m²/s²
0-3 km storm-relative helicity
124 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.

699 
WUUS52 KTBW 021744
SVRTBW
FLC053-021830-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
ISSUED BY NWS MELBOURNE FL
142 PM EDT WED JUN 2 2004

THE NATIONAL WEATHER SERVICE IN RUSKIN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN HERNANDO COUNTY
  IN EAST CENTRAL FLORIDA

* UNTIL 230 PM EDT

* AT 133 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
A   SEVERE THUNDERSTORM 6 MILES SOUTHWEST OF RIDGE MANOR...MOVING 
NORTHEAST AT 10 MPH.

* THE SEVERE THUNDERSTORM WILL BE...
  NEAR RIDGE MANOR AT 155 PM EDT

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.

LAT...LON 2850 8237 2837 8223 2850 8207 2862 8224

$$

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 2, 10:15 AM EDT, 3 hours 29 minutes earlier.

Area forecast discussion, Jun 2, 10:15 AM EDT, 3 hours 29 minutes before
WEST CENTRAL AND SOUTHWEST FLORIDA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
ISSUED BY NATIONAL WEATHER SERVICE MELBOURNE FL
1015 AM EDT WED JUN 2 2004

TBW OFFICE INSTALLING AWIPS OB3 TODAY.

.SHORT TERM (TODAY)...VERY UNSTABLE 12Z TPA SOUNDING THIS MORNING.
ALTHOUGH DEGREE OF SATURATION IN LOW LEVELS APPEARS SUSPECT...RAPID
CONVECTIVE DVLPMNT OVER LEVY COUNTY AND ADJOINING WATERS SUGGESTS
OTHERWISE. LAPSE RATE ON TPA SNDING WORKING ON PREXISTING BNDRYS
SUGGESTS CONVECTIVE DEVLOPMENT WILL CONTINUE WITH MAIN CONCERN FOR
STRONG STRAIGHT LINE WINDS AND MAINLY SMALL HAIL. CONVECTION NOW
ALONG E-W BNDRY WILL TRANSITION TO THE INTERIOR AS WEST COAST BREEZE
MOVES INLAND RATHER RAPIDLY WITH 15 KT SW-W FLOW JUST ABV THE SFC.
(PERFORMED A LITTLE MORE IN DEPTH RAOB ANLYS/MESO DISC IN MIAAFDMLB
...USERS WILL WANT TO ALSO REFER TO THAT PRODUCT AS WELL.)

EARLY CONVECTION WILL REQUIRE AN UPDATE TO ZONES AND COASTALS WITH
HIGHER COVERAGE OF STORMS AND REMOVAL OF TIMING AS IT IS ALREADY
UNDERWAY.

&&

.MARINE...GRADIENT WINDS ARE EXPECTED TO REMAIN AOB 15 KTS...EXCEPT
HIGHER MUCH GUSTS POSSIBLE WITH ANY CONVECTION.

&&

.FIRE WEATHER...BASED UPON CURRENT METARS AND 12Z RAOB DATA...
CRITICAL RH DURATION THRESHOLDS LOOK LIKE THEY WONT BE MET OVER
THE INTERIOR COUNTIES. MAY FLIRT WITH RH NEAR 35%...BUT DONT THINK
TEMP/DEW PT SPREADS WILL GET LARGE FAST ENOUGH TO ACHIEVE SIGNIF
DURATION.

&&

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

&&

BLOTTMAN/CRISTALDI
Hazardous weather outlook, Jun 2, 5:00 AM EDT, 8 hours 44 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
5 AM EDT WED JUN 2 2004

FLZ039-042-043-048>052-055>057-060>062-065-021400-
CHARLOTTE-CITRUS-DE SOTO-HARDEE-HERNANDO-HIGHLANDS-HILLSBOROUGH-LEE-
LEVY-MANATEE-PASCO-PINELLAS-POLK-SARASOTA-SUMTER-
5 AM EDT WED JUN 2 2004

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

.DAY ONE...TODAY:

CHANCES FOR AFTERNOON AND EVENING SHOWERS AND THUNDERSTORMS ARE
EXPECTED TO CONTINUE INCREASING TODAY. THE BEST CHANCES FOR SHOWERS
AND THUNDERSTORMS WILL BE WELL INLAND LATER THIS AFTERNOON AND
EVENING...GENERALLY EAST OF A LINE FROM LAKELAND...IN WESTERN POLK
COUNTY...SOUTHWARD TO FORT MYERS...IN LEE COUNTY.

ALTHOUGH SEVERE THUNDERSTORMS ARE NOT EXPECTED TODAY...ALL
THUNDERSTORMS ARE CAPABLE OF PRODUCING DEADLY CLOUD TO GROUND
LIGHTNING. WHEN SKIES DARKEN...MOVE INDOORS.

IN ADDITION...HOT HUMID CONDITIONS ARE EXPECTED AGAIN TODAY...WHICH
WILL CREATE AFTERNOON HEAT INDICES NEAR 100 DEGREES. IF OUTDOORS...
DRINK PLENTY OF FLUIDS...AND STAY OUT OF THE DIRECT SUNLIGHT AS MUCH
AS POSSIBLE.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY:

MORE TYPICAL RAIN CHANCES ARE EXPECTED...WITH SCATTERED MAINLY
AFTERNOON AND EVENING SHOWERS AND THUNDERSTORMS ACROSS THE ENTIRE
REGION THROUGH TUESDAY.

In the hours before

Special weather statement, Jun 2, 11:31 AM EDT, 2 hours 13 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
ISSUED BY NWS MELBOURNE FL
1131 AM EDT WED JUN 2 2004

FLZ043-021600-
SUMTER-
1131 AM EDT WED JUN 2 2004

...STRONG STORM CAPABLE OF PRODUCING WIND GUSTS UP TO 50 MPH OVER
NORTH CENTRAL SUMTER COUNTY...

AT 1126 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STORM CAPABLE OF PRODUCING STRONG WIND GUSTS 10 MILES WEST OF
WILDWOOD.  THE STORM WAS MOVING EAST AT 20 MPH AND WILL CROSS I 75
AND THE INTERCHANGE WITH THE TURNPIKE.

IF THE STORM STRENGTHENS FURTHER...A WARNING WILL BE ISSUED.
Special weather statement, Jun 2, 12:37 PM EDT, 1 hour 7 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
ISSUED BY NWS MELBOURNE FL
1237 PM EDT WED JUN 2 2004

FLZ043-021700-
SUMTER-
1237 PM EDT WED JUN 2 2004

...STRONG STORMS CAPABLE OF PRODUCING WIND GUSTS UP TO 50 MPH OVER
SUMTER COUNTY...

AT 1227 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STORM CAPABLE OF PRODUCING STRONG WIND GUSTS NEAR LAKE
PANASOFFKEE...MOVING NORTHEAST AT 20 MPH. THE STORM WILL AFFECT
COLEMAN AND WILDWOOD. OTHER STORMS IN THE COUNTY WILL MOVE THROUGH
BUSHNELL AND WEBSTER.

THESE STORMS DEVELOPING ALONG A BOUNDARY BISECTING THE COUNTY WILL
BRING VERY HEAVY RAIN...SMALL HAIL AND GUSTY WINDS.

IF THE STORMS STRENGTHEN FURTHER...A WARNING WILL BE ISSUED.

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 2, 9:24 AM EDTSpecial Marine WarningTBW2 hr
Jun 2, 10:44 AM EDTSevere Thunderstorm WarningTBWCitrus61 min
Jun 2, 2:01 PM EDTSevere Thunderstorm WarningTBWPasco44 min

Nearby

Severe Thunderstorm Warnings in Florida, 2004Every severe thunderstorm warning in 2004

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.