Alert archive / Florida / Severe Thunderstorm Warnings in 2005
Severe Thunderstorm Warning 28, NWS Tampa Bay, FL
NWS Tampa Bay, FL issued this severe thunderstorm warning at May 17, 2005, 11:48 PM EDT for Hillsborough County, Florida. It was in force for 19 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
- May 17, 2005, 11:48 PM EDT (03:48 UTC)
- Expired
- May 18, 2005, 12:07 AM EDT
- In force
- 19 min
- Issued by
- NWS Tampa Bay, FL
- Area
- Counties, with a storm outline in the text
County Hillsborough County, FL
The radar
The Tampa radar (KTBW), 25 km from the middle of the area, began a volume at 03:49 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 00:00Z, 3.8 hours before the alert went out and 25 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
- 1570 J/kg
- Mixed-layer CIN
- -6 J/kg
- Mixed-layer LCL
- 963 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- -3 m²/s²
- 0-3 km storm-relative helicity
- 42 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS52 KTBW 180349 SVRTBW FLC057-180415- /O.NEW.KTBW.SV.W.0028.050518T0348Z-050518T0415Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 1148 PM EDT TUE MAY 17 2005 THE NATIONAL WEATHER SERVICE IN RUSKIN HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CENTRAL HILLSBOROUGH COUNTY IN FLORIDA. * UNTIL 1215 AM EDT * AT 1148 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM WITH LARGE HAIL AND DAMAGING WINDS...OVER CENTRAL HILLSBOROUGH COUNTY...MOVING NORTH AT 5 MPH. * THE SEVERE THUNDERSTORM WILL AFFECT... BLOOMINGDALE. PALM RIVER. AT 1148 PM EDT...NATIONAL WEATHER SERVICE EMPLOYEE ALSO REPORTED NICKEL SIZE HAIL IN BLOOMINGDALE. SEVERE THUNDERSTORMS CONTAIN WIND GUSTS OF 60 MPH OR HIGHER...AND HAIL THE SIZE OF PENNIES OR LARGER. MOVE TO A PLACE OF SAFETY. WIND GUSTS TO 60 MPH WILL CAUSE SOME STRUCTURAL DAMAGE...MAINLY TO TREES AND POWER LINES. POORLY ANCHORED ROOFS...MOBILE HOMES...AND SHEDS ARE ALSO AT RISK. && LAT...LON 2783 8227 2784 8217 2795 8216 2793 8230 $$ 25
1 follow-up statement
000 WWUS52 KTBW 180407 SVSTBW SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 1207 AM EDT WED MAY 18 2005 FLC057-180417- /O.CAN.KTBW.SV.W.0028.000000T0000Z-050518T0415Z/ HILLSBOROUGH- 1207 AM EDT WED MAY 18 2005 ...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL HILLSBOROUGH COUNTY IS CANCELLED... AT 1207 AM EDT...NATIONAL WEATHER SERVICE RADAR INDICATED THAT THE THUNDERSTORM THAT PROMPTED THE WARNING HAD WEAKENED AND WAS NO LONGER SEVERE...THUS THE WARNING HAS BEEN CANCELLED. A NATIONAL WEATHER SERVICE EMPLOYEE REPORTED NICKEL SIZE HAIL IN BLOOMINGDALE AT 1145 PM. DOPPLER RADAR INDICATED THAT HEAVY RAIN...SMALL HAIL...AND GUSTY WINDS WERE STILL POSSIBLE FROM THE THUNDERSTORM. && LAT...LON 2783 8227 2784 8217 2795 8216 2793 8230 $$ 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 May 17, 9:30 PM EDT, 2 hours 18 minutes earlier.
Area forecast discussion, May 17, 9:30 PM EDT, 2 hours 18 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 930 PM EDT TUE MAY 17 2005 .DISCUSSION...SEA BREEZE SHOWERS AND TSTMS WINDING DOWN THIS EVENING MUCH LIKE LAST NIGHT. WILL UPDATE THE TEXT PRODUCTS TO INDICATE SHOWERS/TSTMS ENDING AROUND MIDNIGHT AS PER OUR CURRENT GRIDS. PATCHY FOG A GOOD CHANCE NORTH OF TAMPA BAY WHERE LIGHT WINDS WILL COMBINE WITH PLENTIFUL LOW LEVEL MOISTURE (AFTER TODAYS RAINS) AND TEMPS FALLING TO THE LOW 60S. OTHERWISE...LIGHT WINDS ACROSS MUCH OF THE AREA OVERNIGHT WITH LOW TEMPS RANGING FROM THE LOW 60S NORTH OF TAMPA BAY TO UPPER 60S CENTRAL AND SOUTH. && .MARINE...LIGHT WINDS AND FAVORABLE SEAS OVERNIGHT WITH THE RIDGE TO OUR NORTH AND WEAK PRES GRAD OVER OUR WATERS. NO CHANGES TO CURRENT CWF. && .TBW WATCHES/WARNINGS/ADVISORIES... NONE. && NP
Hazardous weather outlook, May 17, 5:28 AM EDT, 18 hours 20 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 528 AM EDT TUE MAY 17 2005 FLZ039-042-043-048>052-055>057-060>062-065-171400- CHARLOTTE-CITRUS-DE SOTO-HARDEE-HERNANDO-HIGHLANDS-HILLSBOROUGH-LEE- LEVY-MANATEE-PASCO-PINELLAS-POLK-SARASOTA-SUMTER- 528 AM EDT TUE MAY 17 2005 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WEST CENTRAL AND SOUTHWEST FLORIDA. .DAY ONE...TODAY: AN UPPER LEVEL DISTURBANCE WILL APPROACH THE REGION TODAY IN A WARM AND UNSTABLE ATMOSPHERE TO COMBINE WITH DAYTIME HEATING AND SEA BREEZE COLLISIONS GENERATING SCATTERED THUNDERSTORMS THIS AFTERNOON THROUGH THIS EVENING. GUSTY WINDS AND HAIL ARE POSSIBLE WITH SOME OF THE STRONGER STORMS. WHEN SKIES DARKEN...MOVE INDOORS. IF THERE IS TIME...UNPLUG APPLIANCES AND ELECTRICAL EQUIPMENT. WAIT UNTIL THE STORM ENDS BEFORE USING THE TELEPHONE OR RUNNING WATER. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY: ISOLATED TO SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED IN THE AFTERNOONS AND EVENINGS FOR THE REST OF THE WEEK AND INTO THE WEEKEND. .SPOTTER CALL TO ACTION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED. && FOR ADDITIONAL WEATHER INFORMATION...CHECK OUR WEB SITE AT HTTP://WWW.SRH.NOAA.GOV/TBW (LOWER CASE)
In the hours before
Special weather statement, May 17, 11:32 PM EDT, 16 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 1132 PM EDT TUE MAY 17 2005 FLZ051-180415- HILLSBOROUGH- 1132 PM EDT TUE MAY 17 2005 ...STRONG WINDS WILL AFFECT EASTERN CENTRAL HILLSBOROUGH COUNTY... A THUNDERSTORM...DRIFTING NORTH NORTHWEST AT 5 MPH...WILL AFFECT BLOOMINGDALE...RIVERVIEW...VALRICO AND BRANDON...UNTIL 1215 AM EDT. GUSTY WINDS 40 TO 50 MPH MAY CAUSE LOOSE OBJECTS TO BLOW AROUND. MINOR DAMAGE TO TREE LIMBS AND WIRES IS POSSIBLE. FREQUENT CLOUD TO GROUND LIGHTNING IS EXPECTED. IF CAUGHT OUTSIDE...CROUCH DOWN IN A LOW SPOT...AWAY FROM TALL OBJECTS. THIS STORM WILL PRODUCE PEA SIZE HAIL. 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. RD
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.