Alert archive / Florida / Tornado Warnings in 2011

Tornado Warning 2, NWS Tampa Bay, FL

January 25, 2011Hernando County, Pasco County, Florida

NWS Tampa Bay, FL issued this tornado warning at Jan 25, 2011, 4:00 PM EST for Hernando County, Pasco County, Florida. It was in force for 45 min. 6 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jan 25, 2011, 4:00 PM EST (21:00 UTC)
Expired
Jan 25, 2011, 4:45 PM EST
In force
45 min
Issued by
NWS Tampa Bay, FL
Area
Storm-based polygon

Counties Hernando County, FL, Pasco County, FL

The radar

The Tampa radar (KTBW), 78 km from the middle of the area, began a volume at 21:02 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

TimeReportWhereRemark
Jan 25, 4:24 PM ESTMARINE TSTM WIND 415 N Hudson, FLWIND GUST AT ARIPEKA COMPS STATION.
Jan 25, 4:34 PM ESTHAIL 0.74 Nnw Spring Hill, FLDIME SIZE HAIL REPORTED.
Jan 25, 4:44 PM ESTTSTM WND GST 582 Nne Masaryktown, FL50 KNOT WIND GUST REPORTED AT BROOKSVILLE HERNANDO COUNTY AIRPORT.
Jan 25, 4:45 PM ESTTSTM WND DMG2 Nne Masaryktown, FLNUMEROUS REPORTS OF TREES AND SOME POWER LINES DOWN IN DIFFERENT PARTS OF THE COUNTY. MAINLY FROM SOUTH SIDE OF SPRING HILL EAST NORTHEAST ACROSS HERNANDO COUNTY AIRPORT TO NEAR SPRING LAKE. WORST STRUCTURAL DAMAGE TO FIVE HOMES JUST NORTHEAST OF HERNANDO COUN
Jan 25, 4:45 PM ESTTSTM WND DMG3 Nne Masaryktown, FLTHE STORM SURVEY TEAM ESTIMATES 60-70MPH STRAIGHT LINE WINDS DOWNED NUMEROUS LARGE TREES NEAR FERRY AVENUE AND THE HERNANDO COUNTY AIRPORT.
Jan 25, 4:45 PM ESTTSTM WND DMGSpring Hill, FLDAMAGE REPORTED TO TWO WINDOWS AND GARAGE DOOR. EXACT LOCATION NOT KNOWN AT THIS TIME.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

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

IssuedProductOfficeLasted
Jan 25, 2:07 PM ESTTornado WatchSPC7 hr

The nearest sounding before it

Tampa Bay, FL (KTBW), launched 12:00Z, 9.0 hours before the alert went out and 78 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 2011-01-25Temperature 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 2011-01-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 368 square meters per square second.1939587897Sfc1 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
-221 J/kg
Mixed-layer LCL
717 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
368 m²/s²
0-3 km storm-relative helicity
493 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.4

Open this sounding in Storm Lab

The text

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

221 
WFUS52 KTBW 252100
TORTBW
FLC053-101-252145-
/O.NEW.KTBW.TO.W.0002.110125T2100Z-110125T2145Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
400 PM EST TUE JAN 25 2011

THE NATIONAL WEATHER SERVICE IN RUSKIN HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHERN HERNANDO COUNTY IN FLORIDA.
  NORTHERN PASCO COUNTY IN FLORIDA.

* UNTIL 445 PM EST

* AT 358 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO 8 MILES NORTHWEST OF PORT RICHEY...OR 9 MILES WEST OF
  HUDSON...MOVING EAST AT 45 MPH.

* THE TORNADO WILL BE NEAR...
  PORT RICHEY.
  HUDSON.
  MOON LAKE ESTATES.
  SPRING HILL.
  MASARYKTOWN.
  BROOKSVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE IN THE PATH OF THE TORNADO GO TO A SMALL INTERIOR ROOM IN
A STRONG AND WELL CONSTRUCTED BUILDING. CARS AND MOBILE HOMES ARE NOT
SAFE. IF NO SHELTER IS AVAILABLE...LIE FLAT IN A DITCH OR CULVERT AND
COVER YOUR HEAD WITH YOUR HANDS.

TO REPORT SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE PLEASE CALL
813-645-2323.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM EST TUESDAY EVENING
FOR WESTERN FLORIDA.

&&

LAT...LON 2826 8275 2828 8276 2830 8274 2831 8275
      2837 8272 2840 8272 2844 8268 2846 8269
      2848 8267 2849 8267 2862 8224 2826 8212
      2824 8276
TIME...MOT...LOC 2100Z 260DEG 41KT 2834 8282

$$
2 follow-up statements
916 
WWUS52 KTBW 252113
SVSTBW

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
413 PM EST TUE JAN 25 2011

FLC053-101-252145-
/O.CON.KTBW.TO.W.0002.000000T0000Z-110125T2145Z/
HERNANDO FL-PASCO FL-
413 PM EST TUE JAN 25 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 445 PM EST FOR NORTHERN
PASCO AND SOUTHERN HERNANDO COUNTIES...

AT 407 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.   LOCATED NEAR HUDSON...MOVING EAST AT 45 MPH.

THE TORNADO WILL BE NEAR...
  ARIPEKA.
  SPRING HILL.
  MASARYKTOWN.
  BROOKSVILLE.
  SAN ANTONIO.
  CROOM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE IN THE PATH OF THE TORNADO GO TO A SMALL INTERIOR ROOM IN
A STRONG AND WELL CONSTRUCTED BUILDING. CARS AND MOBILE HOMES ARE NOT
SAFE. IF NO SHELTER IS AVAILABLE...LIE FLAT IN A DITCH OR CULVERT AND
COVER YOUR HEAD WITH YOUR HANDS.

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING LARGE
HAIL AND WIDESPREAD DAMAGING WINDS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM EST TUESDAY EVENING
FOR WESTERN FLORIDA.

&&

LAT...LON 2826 8275 2828 8276 2830 8274 2831 8275
      2837 8272 2840 8272 2844 8268 2846 8269
      2848 8267 2849 8267 2862 8224 2826 8212
      2824 8276
TIME...MOT...LOC 2113Z 255DEG 41KT 2842 8266

$$
014 
WWUS52 KTBW 252136
SVSTBW

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
436 PM EST TUE JAN 25 2011

FLC053-101-252145-
/O.CON.KTBW.TO.W.0002.000000T0000Z-110125T2145Z/
HERNANDO FL-PASCO FL-
436 PM EST TUE JAN 25 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 445 PM EST FOR NORTHERN
PASCO AND SOUTHERN HERNANDO COUNTIES...

AT 430 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.   LOCATED NEAR MASARYKTOWN...OR 6 MILES EAST OF
SPRING HILL...MOVING EAST AT 50 MPH.

THE TORNADO WILL BE NEAR...
  BROOKSVILLE.
  CROOM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE IN THE PATH OF THE TORNADO GO TO A SMALL INTERIOR ROOM IN
A STRONG AND WELL CONSTRUCTED BUILDING. CARS AND MOBILE HOMES ARE NOT
SAFE. IF NO SHELTER IS AVAILABLE...LIE FLAT IN A DITCH OR CULVERT AND
COVER YOUR HEAD WITH YOUR HANDS.

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING LARGE
HAIL AND WIDESPREAD DAMAGING WINDS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM EST TUESDAY EVENING
FOR WESTERN FLORIDA.

&&

LAT...LON 2826 8275 2828 8276 2830 8274 2831 8275
      2837 8272 2840 8272 2844 8268 2846 8269
      2848 8267 2849 8267 2862 8224 2826 8212
      2824 8276
TIME...MOT...LOC 2136Z 259DEG 53KT 2848 8237

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 25, 4:16 AM ESTSmall Craft AdvisoryTBW39 hr
Jan 25, 4:34 AM ESTHigh Surf AdvisoryTBWPinellas19 hr
Jan 25, 9:33 AM ESTLake Wind AdvisoryTBWDeSoto, Hardee, Highlands, Pinellas, Polk, Sumter8 hr
Jan 25, 1:48 PM ESTSpecial Marine WarningTBW57 min
Jan 25, 2:41 PM ESTSpecial Marine WarningTBW64 min
Jan 25, 2:57 PM ESTSpecial Weather StatementTBWCitrus, Levy63 min
Jan 25, 3:37 PM ESTSevere Thunderstorm WarningTBWCitrus, Hernando, Pasco53 min
Jan 25, 3:43 PM ESTSpecial Marine WarningTBW62 min
Jan 25, 3:55 PM ESTTornado WarningTBWCitrus39 min
Jan 25, 4:24 PM ESTSpecial Marine WarningTBW96 min
Jan 25, 4:30 PM ESTSevere Thunderstorm WarningTBWCitrus, Hernando, Pasco, Sumter60 min
Jan 25, 4:31 PM ESTSpecial Weather StatementTBWHillsborough, Pinellas59 min
Jan 25, 4:45 PM ESTTornado WarningTBWHernando, Pasco, Sumter30 min
Jan 25, 5:00 PM ESTSevere Thunderstorm WarningTBWHillsborough, Manatee, Pinellas, Sarasota60 min
Jan 25, 5:05 PM ESTSpecial Marine WarningTBW115 min
Jan 25, 5:09 PM ESTTornado WarningTBWHillsborough, Pinellas36 min
Jan 25, 5:29 PM ESTSpecial Weather StatementTBWHillsborough, Manatee, Sarasota61 min
Jan 25, 5:44 PM ESTAreal Flood AdvisoryTBWHillsborough, Pinellas91 min
Jan 25, 5:45 PM ESTTornado WarningTBWHighlands, Polk30 min
Jan 25, 5:49 PM ESTTornado WarningTBWHillsborough26 min
Jan 25, 5:55 PM ESTAreal Flood AdvisoryTBWManatee2 hr
Jan 25, 5:58 PM ESTTornado WarningTBWPolk32 min
Jan 25, 6:00 PM ESTTornado WarningTBWManatee, Sarasota30 min
Jan 25, 6:01 PM ESTTornado WarningTBWHardee, Hillsborough, Manatee, Polk29 min
Jan 25, 6:30 PM ESTTornado WarningTBWDeSoto, Hardee, Manatee, Sarasota30 min
Jan 25, 6:35 PM ESTTornado WarningTBWCharlotte, DeSoto, Sarasota40 min
Jan 25, 6:54 PM ESTSevere Thunderstorm WarningTBWHardee, Highlands, Polk36 min

Nearby

Tornado Warnings in Florida, 2011Every tornado warning in 2011Tornadoes in 2011

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.