Alert archive / Florida / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 21, NWS Tampa Bay, FL

June 22, 2013Pasco County, Florida

NWS Tampa Bay, FL issued this severe thunderstorm warning at Jun 22, 2013, 6:11 PM EDT for Pasco County, Florida. It was in force for 34 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
Jun 22, 2013, 6:11 PM EDT (22:11 UTC)
Expired
Jun 22, 2013, 6:45 PM EDT
In force
34 min
Issued by
NWS Tampa Bay, FL
Area
Storm-based polygon

County Pasco County, FL

The radar

The Tampa radar (KTBW), 70 km from the middle of the area, began a volume at 22:14 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, 10.2 hours before the alert went out and 70 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 2013-06-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 508 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Tampa Bay, FL at 12:00Z on 2013-06-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -13 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
508 J/kg
Mixed-layer CIN
-40 J/kg
Mixed-layer LCL
967 m above ground
0-6 km bulk shear
3 kt
0-1 km storm-relative helicity
-13 m²/s²
0-3 km storm-relative helicity
-6 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.

027 
WUUS52 KTBW 222211
SVRTBW
FLC101-222245-
/O.NEW.KTBW.SV.W.0021.130622T2211Z-130622T2245Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
611 PM EDT SAT JUN 22 2013

THE NATIONAL WEATHER SERVICE IN RUSKIN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  PASCO COUNTY IN WEST CENTRAL FLORIDA...

* UNTIL 645 PM EDT.

* AT 612 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 7 MILES
  NORTH OF LAND O LAKES...OR 12 MILES SOUTHEAST OF SPRING HILL...AND
  WAS MOVING SLOWLY SOUTHWEST AT 5 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  WESLEY CHAPEL...MOON LAKE ESTATES AND ODESSA.

THIS INCLUDES INTERSTATE 75 BETWEEN EXITS 274 AND 293.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY. LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.

&&

LAT...LON 2843 8253 2843 8232 2841 8224 2817 8230
      2818 8261 2830 8266
TIME...MOT...LOC 2211Z 031DEG 2KT 2832 8241

$$

14-MROCZKA
1 follow-up statement
786 
WWUS52 KTBW 222235
SVSTBW

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
635 PM EDT SAT JUN 22 2013

FLC101-222244-
/O.CAN.KTBW.SV.W.0021.000000T0000Z-130622T2245Z/
PASCO FL-
635 PM EDT SAT JUN 22 2013

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL PASCO COUNTY IS
CANCELLED...

ALTHOUGH THE STORM HAS WEAKENED BELOW SEVERE LIMITS IT WILL CONTINUE 
TO PRODUCE GUSTY WINDS...HEAVY RAIN...AND FREQUENT LIGHTNING UNTIL 
FULLY DISSIPATED.

LAT...LON 2843 8253 2843 8232 2841 8224 2817 8230
      2818 8261 2830 8266
TIME...MOT...LOC 2234Z 111DEG 8KT 2835 8248

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 22, 7:21 AM EDTRiver Flood WarningTBWManatee21 hr
Jun 22, 3:14 PM EDTSpecial Weather StatementTBWCitrus31 min
Jun 22, 3:51 PM EDTSpecial Weather StatementTBWCitrus24 min
Jun 22, 5:26 PM EDTSpecial Weather StatementTBWPasco34 min
Jun 22, 6:06 PM EDTSpecial Weather StatementTBWPasco39 min
Jun 22, 7:47 PM EDTSpecial Marine WarningTBW28 min

Nearby

Severe Thunderstorm Warnings in Florida, 2013Every severe thunderstorm warning in 2013

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.