Alert archive / Florida / Tornado Warnings in 2023

Tornado Warning 20, NWS Tampa Bay, FL

August 30, 2023Pasco County, Florida

NWS Tampa Bay, FL issued this tornado warning at Aug 30, 2023, 9:07 AM EDT for Pasco County, Florida. It was in force for 23 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Aug 30, 2023, 9:07 AM EDT (13:07 UTC)
Expired
Aug 30, 2023, 9:30 AM EDT
In force
23 min
Issued by
NWS Tampa Bay, FL
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

County Pasco County, FL

The radar

The Tampa radar (KTBW), 67 km from the middle of the area, began a volume at 13:09 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.

The watch it was issued in

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

IssuedProductOfficeLasted
Aug 30, 5:38 AM EDTTornado WatchSPC12 hr

The nearest sounding before it

Tampa Bay, FL (KTBW), launched 12:00Z, 1.1 hours before the alert went out and 67 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 2023-08-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1290 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 2023-08-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 216 square meters per square second.19395878Sfc1 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
1290 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
652 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
216 m²/s²
0-3 km storm-relative helicity
234 m²/s²
Significant tornado parameter
1.2
Supercell composite
11.6

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this tornado 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 tornado warning went out at Aug 30, 8:34 AM EDT, 33 minutes earlier.

Area forecast discussion, Aug 30, 8:34 AM EDT, 33 minutes before
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In the hours before

Local storm report, Aug 30, 5:23 AM EDT, 3 hours 44 minutes before
Preliminary Local Storm Report
National Weather Service Tampa Bay Ruskin FL
523 AM EDT Wed Aug 30 2023

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0437 AM     Tropical Cyclone 2 SW Tampa Internationa 27.97N 82.53W
08/30/2023                   Hillsborough       FL   ASOS

            Measured 58 MPH wind gust at ASOS station
            KTPA Tampa.

&&
Local storm report, Aug 30, 5:24 AM EDT, 3 hours 43 minutes before
Preliminary Local Storm Report
National Weather Service Tampa Bay Ruskin FL
524 AM EDT Wed Aug 30 2023

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0515 AM     Tropical Cyclone 6 SSW Charlotte Beach   26.85N 82.25W
08/30/2023                   Charlotte          FL   AWOS

            54 MPH wind gust measured at AWOS station
            K54A 6 SSW Charlotte Beach.

&&
Local storm report, Aug 30, 5:51 AM EDT, 3 hours 16 minutes before
Preliminary Local Storm Report
National Weather Service Tampa Bay Ruskin FL
551 AM EDT Wed Aug 30 2023

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0524 AM     Tropical Cyclone 1 SSE Cedar Key         29.14N 83.03W
08/30/2023                   GMZ850             FL   Buoy

            64 MPH wind gust measured at Buoy station
            CKYF1 Cedar Key, FL.

&&
Local storm report, Aug 30, 5:52 AM EDT, 3 hours 15 minutes before
Preliminary Local Storm Report
National Weather Service Tampa Bay Ruskin FL
552 AM EDT Wed Aug 30 2023

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0534 AM     Tropical Cyclone 6 NNW Anna Maria Island 27.61N 82.76W
08/30/2023                   GMZ853             FL   Mesonet

            62 MPH wind gust measured at station XEGM
            Egmont Channel.

&&
Local storm report, Aug 30, 7:41 AM EDT, 1 hour 26 minutes before
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Local storm report, Aug 30, 7:42 AM EDT, 1 hour 25 minutes before
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      <h1 id="headline">This service is currently unavailable.</h1>
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        Please try again in a few minutes.
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The office that day

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

IssuedProductOfficeCountiesLasted
Aug 29, 8:38 PM EDTSpecial Marine WarningTBW37 min
Aug 29, 11:29 PM EDTSpecial Marine WarningTBW31 min
Aug 30, 1:01 AM EDTAreal Flood AdvisoryTBWCharlotte, DeSoto, Hardee, Lee89 min
Aug 30, 1:40 AM EDTTornado WarningTBWHardee, Highlands, Polk20 min
Aug 30, 2:52 AM EDTAreal Flood AdvisoryTBWCharlotte, DeSoto, Hardee, Highlands, Hillsborough, Lee and 3 more3 hr
Aug 30, 4:18 AM EDTTornado WarningTBWHardee, Polk27 min
Aug 30, 4:23 AM EDTTornado WarningTBWCitrus, Hernando, Sumter22 min
Aug 30, 6:03 AM EDTTornado WarningTBWHardee, Highlands, Polk7 min
Aug 30, 6:03 AM EDTTornado WarningTBWDeSoto, Hardee, Highlands, Polk12 min
Aug 30, 6:20 AM EDTTornado WarningTBWHardee, Highlands, Polk25 min
Aug 30, 6:53 AM EDTTornado WarningTBWHardee, Highlands, Polk12 min
Aug 30, 8:24 AM EDTAreal Flood WarningTBWDeSoto, Hardee, Manatee3 hr
Aug 30, 9:15 AM EDTTornado WarningTBWDeSoto, Hardee, Manatee, Sarasota15 min
Aug 30, 11:28 AM EDTAreal Flood WarningTBWDeSoto, Hardee, Manatee, Polk, Sarasota2 hr
Aug 30, 2:09 PM EDTAreal Flood WarningTBWHillsborough, Pasco, Polk, Sumter2 hr
Aug 30, 3:47 PM EDTRiver Flood WarningTBWDeSoto21 days
Aug 30, 3:47 PM EDTRiver Flood WarningTBWManatee54 hr
Aug 30, 5:31 PM EDTSmall Craft AdvisoryTBW14 hr
Aug 30, 5:33 PM EDTCoastal Flood StatementTBWCharlotte, Citrus, Hernando, Hillsborough, Lee, Levy and 4 more10 hr
Aug 30, 5:33 PM EDTRip Current StatementTBWCharlotte, Hillsborough, Lee, Manatee, Pinellas, Sarasota26 hr
Aug 30, 5:33 PM EDTHigh Surf AdvisoryTBWCharlotte, Hillsborough, Lee, Manatee, Pinellas, Sarasota10 hr

Nearby

Tornado Warnings in Florida, 2023Every tornado warning in 2023Tornadoes in 2023

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.