Alert archive / Florida / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 2, NWS Tampa Bay, FL

March 26, 2002Polk County, Florida

NWS Tampa Bay, FL issued this severe thunderstorm warning at Mar 26, 2002, 5:42 PM EST for Polk County, Florida. It was in force for 48 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
Mar 26, 2002, 5:42 PM EST (22:42 UTC)
Expired
Mar 26, 2002, 6:30 PM EST
In force
48 min
Issued by
NWS Tampa Bay, FL
Area
Whole counties

County Polk County, FL

The radar

The Tampa radar (KTBW), 74 km from the middle of the area, began a volume at 22:46 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 nearest sounding before it

Tampa Bay, FL (KTBW), launched 12:00Z, 10.7 hours before the alert went out and 74 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 2002-03-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 847 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 2002-03-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 2 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
847 J/kg
Mixed-layer CIN
-49 J/kg
Mixed-layer LCL
779 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
2 m²/s²
0-3 km storm-relative helicity
101 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 262242
SVRTBW
FLC105-262330-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
ISSUED BY NWS MELBOURNE FL
541 PM EST TUE MAR 26 2002

THE NATIONAL WEATHER SERVICE IN RUSKIN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN POLK COUNTY
  IN EAST CENTRAL FLORIDA

* UNTIL 630 PM EST.

* AT 540 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
  SEVERE THUNDERSTORM 9 MILES NORTHWEST OF POLK CITY...MOVING EAST   
  AT 15 MPH.

* THE SEVERE THUNDERSTORM WILL BE...
  7 MILES NORTH OF POLK CITY AT 550 PM 
  NEAR LOUGHMAN AT 615 PM...
  AND 7 MILES NORTH OF DAVENPORT AT 620 PM 

DIME TO NICKEL SIZE HAIL...EXCESSIVE LIGHTNING AND DAMAGING WINDS 
ARE LIKELY. TAKE COVER IN A STURDY BUILDING UNTIL THE STORM PASSES.

$$

LAT...LON 2835 8197 2811 8197 2811 8145 2834 8166

KELLY

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 26, 4:34 PM ESTSevere Thunderstorm WarningTBWPolk26 min

Nearby

Severe Thunderstorm Warnings in Florida, 2002Every severe thunderstorm warning in 2002

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.