Alert archive / Florida / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 93, NWS Tampa Bay, FL

June 22, 2001Marion County, Florida

NWS Tampa Bay, FL issued this severe thunderstorm warning at Jun 22, 2001, 11:20 AM EDT for Marion County, Florida. It was in force for 40 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
Jun 22, 2001, 11:20 AM EDT (15:20 UTC)
Expired
Jun 22, 2001, 12:00 PM EDT
In force
40 min
Issued by
NWS Tampa Bay, FL
Area
Whole counties

County Marion County, FL

The radar

The Jacksonville radar (KJAX), 146 km from the middle of the area, began a volume at 15:24 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, 3.3 hours before the alert went out and 171 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 2001-06-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 698 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 2001-06-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 69 square meters per square second.1939Sfc1 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
698 J/kg
Mixed-layer CIN
-80 J/kg
Mixed-layer LCL
1062 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
69 m²/s²
0-3 km storm-relative helicity
80 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.7

Open this sounding in Storm Lab

The text

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

000 
WUUS52 KTBW 221520
SVRTBW
FLC083-221600-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSONVILLE FL
ISSUED BY NWS TAMPA BAY AREA - RUSKIN FL
1120 AM EDT FRI JUN 22 2001

THE NATIONAL WEATHER SERVICE IN JACKSONVILLE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN MARION COUNTY IN FLORIDA.

* UNTIL NOON EDT.

* AT 1120 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM WITH DAMAGING WINDS...OVER SOUTHERN MARION
  COUNTY...MOVING NORTHEAST AT 20 MPH.

* THE SEVERE THUNDERSTORM WILL AFFECT...
  RURAL SOUTHERN MARION COUNTY BY 1120 AM EDT.
  RURAL SOUTHEASTERN MARION COUNTY BY 1135 AM EDT.
  RURAL EASTERN MARION COUNTY BY 1145 AM EDT.

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.

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE
INDOORS IMMEDIATELY. DO NOT USE ELECTRICAL APPLIANCES OR TELEPHONES.

$$

LAT...LON 2900 8209 2887 8195 2912 8163 2928 8181

57
NNNN

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 Jun 22, 9:27 AM EDT, 1 hour 53 minutes earlier.

Area forecast discussion, Jun 22, 9:27 AM EDT, 1 hour 53 minutes before
WEST CENTRAL AND SOUTHWEST FLORIDA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
927 AM EDT FRI JUN 22 2001

PLENTY OF WEATHER TO KEEP US BUSY TODAY. MARINE AREA COVERED BY
EITHER STATEMENTS OR WARNINGS ALREADY. UPDATED ZONES EARLY TO HAVE
LIKELY POPS OR BETTER ALL AREAS. SHOULD SEE SOME ISOLATED SEVERE
AGAIN...WITH BEST CHANCES OVER INTERIOR COUNTIES WHERE HEATING IS
MAXIMIZED. 12Z SOUNDING SHOWS SOME COOLING ALOFT AS WELL WITH -10C
AT 50H.

.TBW...NONE.

ALSHEIMER

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 22, 9:45 AM EDTTornado WarningTBWCitrus45 min
Jun 22, 10:40 AM EDTSevere Thunderstorm WarningTBWPinellas35 min

Nearby

Severe Thunderstorm Warnings in Florida, 2001Every severe thunderstorm warning in 2001

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.