Alert archive / Florida / Severe Thunderstorm Warnings in 2005

Severe Thunderstorm Warning 3, NWS Tampa Bay, FL

March 17, 2005Lee County, Florida

NWS Tampa Bay, FL issued this severe thunderstorm warning at Mar 17, 2005, 10:18 AM EST for Lee County, Florida. It was in force for 57 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
Mar 17, 2005, 10:18 AM EST (15:18 UTC)
Expired
Mar 17, 2005, 11:15 AM EST
In force
57 min
Issued by
NWS Tampa Bay, FL
Area
Counties, with a storm outline in the text

County Lee County, FL

The radar

The Tampa radar (KTBW), 144 km from the middle of the area, began a volume at 15:20 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Mar 17, 9:45 AM ESTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Tampa Bay, FL (KTBW), launched 12:00Z, 3.3 hours before the alert went out and 144 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 2005-03-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 5 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 2005-03-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 58 square meters per square second.1939587897117Sfc1 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
5 J/kg
Mixed-layer CIN
-223 J/kg
Mixed-layer LCL
994 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
58 m²/s²
0-3 km storm-relative helicity
55 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 171519
SVRTBW
FLC071-171615-
/O.NEW.KTBW.SV.W.0003.050317T1518Z-050317T1615Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
1018 AM EST THU MAR 17 2005

THE NATIONAL WEATHER SERVICE IN RUSKIN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  LEE COUNTY IN FLORIDA.

* UNTIL 1115 AM EST

* AT 1018 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM WITH THE POTENTIAL FOR DAMAGING WINDS...OVER   
  SANIBEL...MOVING EAST AT 40 MPH.

* THE SEVERE THUNDERSTORM WILL AFFECT...
  CAPE CORAL BY 1025 AM EST.
  PAGE PARK-PINE MANOR BY 1030 AM EST.
  FORT MYERS BY 1035 AM EST.
  MORSE SHORES BY 1040 AM EST.
  LEHIGH ACRES BY 1045 AM EST.

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.

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

&&

LAT...LON 2658 8213 2675 8168 2675 8157 2655 8157
      2644 8193 2656 8207 2648 8209 2657 8213
      2654 8218 2649 8218 2644 8212 2647 8206
      2644 8203 2642 8207 2649 8220 2654 8220

$$

17
1 follow-up statement
000 
WWUS52 KTBW 171600
SVSTBW

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
1058 AM EST THU MAR 17 2005

FLC071-171615-
/O.CON.KTBW.SV.W.0003.000000T0000Z-050317T1615Z/
LEE-
1058 AM EST THU MAR 17 2005

...A SEVERE THUNDERSTORM WARNING CONTINUES FOR LEE COUNTY UNTIL 1115
AM EST...

AT 1058 AM EST NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
POSSIBLE SEVERE THUNDERSTORM 3 MILES SOUTHWEST OF LEHIGH 
ACRES...MOVING EAST AT 30 MPH.

THE SEVERE THUNDERSTORM WILL AFFECT...
  CAPE CORAL.
  WHISKEY CREEK.
  FORT MYERS VILLAS.
  TICE.
  SOUTHWEST INTERNATIONAL AIRPORT.
  FORT MYERS SHORES.

THE SEVERE THUNDERSTORM IS CAPABLE OF PRODUCING 60 MPH WIND GUSTS. 
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 2658 8213 2675 8168 2675 8157 2655 8157
      2644 8193 2656 8207 2648 8209 2657 8213
      2654 8218 2649 8218 2644 8212 2647 8206
      2644 8203 2642 8207 2649 8220 2654 8220

$$

17

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 Mar 17, 10:00 AM EST, 18 minutes earlier.

Area forecast discussion, Mar 17, 10:00 AM EST, 18 minutes before
WEST CENTRAL AND SOUTHWEST FLORIDA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
1000 AM EST THU MAR 17 2005

.DISCUSSION...SEVERE TSTM WATCH #52 IN EFFECT UNTIL 5 PM FOR OUR
COUNTIES OF CHARLOTTE...LEE...AND HIGHLANDS. CATEGORICAL POPS
CONTINUING THIS AFTERNOON FROM TAMPA BAY SOUTHWARD...AND LIKELY
NORTH OF THE BAY. GIVEN UNSTABLE AIRMASS AND STRONG DEEP LAYER WIND
FIELD...SVR TSTMS POSSIBLE FOR OUR SOUTHERN MOST FORECAST AREA...IN
PARTICULAR THE WATCH AREA AS MENTIONED ABOVE. DAMAGING WIND GUSTS
AND AN ISOLATED TORNADO MAIN CONCERN WITH THE TSTMS.

&&

.MARINE...EXPECTING THE NW WINDS BEHIND THE BOUNDARY TO STAY BELOW
ADVISORY CRITERIA. FOR NOW WILL HOLD AT 15 KT WITH SEAS UP TO 5 FT.

&&

.TBW WATCHES/WARNINGS/ADVISORIES...
...SEVERE THUNDERSTORM WATCH UNTIL 5 PM FOR CHARLOTTE...LEE...AND
    HIGHLANDS.

&&

NP
Hazardous weather outlook, Mar 17, 4:10 AM EST, 6 hours 8 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
410 AM EST THU MAR 17 2005

FLZ039-042-043-048>052-055>057-060>062-065-171700-
CHARLOTTE-CITRUS-DE SOTO-HARDEE-HERNANDO-HIGHLANDS-HILLSBOROUGH-LEE-
LEVY-MANATEE-PASCO-PINELLAS-POLK-SARASOTA-SUMTER-
410 AM EST THU MAR 17 2005

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

.DAY ONE...TODAY:

NUMEROUS SHOWERS AND THUNDERSTORMS ARE EXPECTED ACROSS WEST CENTRAL
AND SOUTHWEST FLORIDA THIS MORNING INTO THIS EVENING. A LARGE AREA OF
CONVECTION IS ONGOING EARLY THIS MORNING ASSOCIATED WITH A COLD
FRONT IN THE GULF OF MEXICO AND UPPER LEVEL DYNAMICS MOVING OVER THE
REGION. SOME OF THE STRONGER STORMS TODAY WILL BE CAPABLE OF
PRODUCING STRONG GUSTY WINDS...FREQUENT CLOUD TO GROUND LIGHTNING
STRIKES...HEAVY RAINFALL...AND THE POSSIBILITY OF SHORT LIVED MARINE
WATERSPOUTS.

IN ADDITION TO THE THUNDERSTORMS...HEAVY RAINFALL WILL BE POSSIBLE
ACROSS THE AREA THROUGH THIS EVENING. CURRENT GUIDANCE SUGGESTS
WIDESPREAD RAINFALL AMOUNTS ON THE ORDER OF 1 TO 3 INCHES WITH
LOCALIZED AMOUNTS UP TO 4 TO 6 INCHES IN SOME LOCATIONS WHERE THE
TRAINING OF CELLS OCCUR.  THIS HEAVY RAINFALL WILL CAUSE AREA RIVERS
TO BE ON THE RISE...AS WELL AS LOCALIZED FLOODING OF LOW LYING AND
POOR DRAINAGE AREAS.

RESIDENTS LIVING IN AREAS THAT ARE PRONE TO URBAN OR SMALL STREAM
FLOODING PROBLEMS...AS WELL AS...ALONG RIVERS AND FASTER FLOWING
STREAMS SHOULD BE ALERT TO RAPID RISES IN WATER LEVELS TODAY AND
TONIGHT AND BE READY TO MOVE TO HIGHER GROUND SHOULD FLOODING BE
OBSERVED. MOTORISTS DRIVING ON WET ROADS TODAY SHOULD USE THEIR
HEADLIGHTS...SLOW DOWN...MAINTAIN A SAFE DRIVING DISTANCE AND AVOID
PONDING OF WATERS ON ROADWAYS.

OVER THE MARINE WATERS...GUSTY WINDS IN AND NEAR THE NUMEROUS SHOWERS
AND THUNDERSTORMS WILL TEMPORARILY INCREASE SEAS MAKING FOR ROUGH
BOATING CONDITIONS. MARINERS MAY WANT TO POSTPONE ANY TRIPS UNTIL
CONDITIONS IMPROVE TONIGHT AND FRIDAY.

RESIDENTS OF WEST CENTRAL AND SOUTHWEST FLORIDA SHOULD MONITOR
ONGOING WEATHER CONDITIONS TODAY AND THIS EVENING...AND IF
THREATENING WEATHER APPROACHES YOUR LOCATION MOVE INDOORS
IMMEDIATELY.  STAY TUNED TO NOAA WEATHER RADIO OR YOUR LOCAL MEDIA
OUTLETS FOR POSSIBLE WATCHES OR WARNINGS.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY:

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER CALL TO ACTION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

&&

FOR ADDITIONAL WEATHER INFORMATION...CHECK OUR WEB SITE AT
HTTP://WWW.SRH.NOAA.GOV/TBW (LOWER CASE)

RD

In the hours before

Special weather statement, Mar 17, 8:44 AM EST, 1 hour 34 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
844 AM EST THU MAR 17 2005

FLZ057-171445-
HIGHLANDS-
844 AM EST THU MAR 17 2005

...STRONG THUNDERSTORMS WILL AFFECT SOUTHERN HIGHLANDS COUNTY...
A THUNDERSTORM...MOVING NORTHEAST AT 40 MPH...WILL AFFECT SOUTHERN
HIGHLAND COUNTY...INCLUDING VENUS...UNTIL 945 AM EST. 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. TORRENTIAL RAINS WILL CAUSE PONDING OF WATER ON
ROADS...AND MINOR FLOODING OF POOR DRAINAGE AREAS.

NP
Special weather statement, Mar 17, 9:51 AM EST, 27 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
951 AM EST THU MAR 17 2005

FLZ057-062-065-172200-
CHARLOTTE-HIGHLANDS-LEE-
951 AM EST THU MAR 17 2005

...SEVERE THUNDERSTORM WATCH NUMBER 52 IN EFFECT UNTIL 500 PM EST...

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WATCH
FOR HIGHLANDS...LEE AND CHARLOTTE COUNTIES.

AN UNSTABLE AIR MASS WITHIN THE WATCH AREA...COMBINED WITH A STRONG
UPPER AIR DISTURBANCE MOVING ACROSS FLORIDA...WILL INCREASE THE
THREAT OF STRONG TO SEVERE THUNDERSTORMS THROUGH THIS AFTERNOON AS A
STRONG LINE OF THUNDERSTORMS MOVE ONSHORE FROM THE GULF. THE MAIN
THREAT WITH THESE THUNDERSTORMS WILL BE DAMAGING WIND GUSTS...SMALL
HAIL...FREQUENT LIGHTNING...AND TORRENTIAL DOWNPOURS. IN
ADDITION...THE COMBINATION OF INSTABILITY AND IMPRESSIVE SHEAR WILL
ALLOW FOR ISOLATED TORNADIC ACTIVITY WITHIN THE WATCH AREA.  IF
THREATENING WEATHER APPROACHES YOUR LOCATION MOVE INDOORS
IMMEDIATELY.

STAY TUNED TO NOAA WEATHER RADIO OR YOUR LOCAL MEDIA OUTLETS FOR
UPDATES.

&&

FOR ADDITIONAL WEATHER INFORMATION, CHECK OUR WEB SITE AT
HTTP://WWW.SRH.NOAA.GOV/TBW (LOWER CASE)

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 17, 9:10 AM ESTSpecial Marine WarningTBW95 min
Mar 17, 11:44 AM ESTSpecial Marine WarningTBW61 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.