Alert archive / Florida / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 78, NWS Tampa Bay, FL

August 31, 1995Hernando County, Pasco County, Florida

NWS Tampa Bay, FL issued this severe thunderstorm warning at Aug 31, 1995, 4:24 PM EDT for Hernando County, Pasco County, Florida. It was in force for 51 min.

The area

The counties it named.

The facts

Issued
Aug 31, 1995, 4:24 PM EDT (20:24 UTC)
Expired
Aug 31, 1995, 5:15 PM EDT
In force
51 min
Issued by
NWS Tampa Bay, FL
Area
Whole counties

Counties Hernando County, FL, Pasco County, FL

The radar

The Tampa radar (KTBW), 81 km from the middle of the area, began a volume at 20:24 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, 8.4 hours before the alert went out and 81 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 1995-08-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2317 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 1995-08-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -9 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
2317 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
491 m above ground
0-6 km bulk shear
7 kt
0-1 km storm-relative helicity
-9 m²/s²
0-3 km storm-relative helicity
2 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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 Aug 31, 3:01 PM EDT, 1 hour 23 minutes earlier.

Area forecast discussion, Aug 31, 3:01 PM EDT, 1 hour 23 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TAMPA BAY-RUSKIN, FL
245 PM EDT THU AUG 31 1995

NGM/ETA IN BETTER AGREEMENT WITH TRACK OF WEAK LOW OFF THE WEST COAST...
EXCEPT FOR AVN. CENTER REMAINS NEARLY STATIONARY THROUGH 24H  THEN GETS
PICKED UP RAPIDLY BY LONG WAVE ACCORDING TO NGM/ETA. AVN KEEPS IT IN SAME
GENERAL AREA. TREND TOWARD NGM ETA SOLUTION BUT A BIT SLOWER. MAX
PRECIPITATION AREAS DICTATED BY ARANGEMENT OF BANDED STRUCTURES. AT
THIS TIME A NEARLY STATIONARY BAND EXTENDS OVER CITRUS AND LEVY COUNTIES.
HAVE KEPT POPS HIGHER THERE TONIGHT.

@1 LEVY CITRUS
@2 HERNANDO SUMTER PASCO PINELLAS HILLSBOROUGH POLK MANATEE
SARASOTA HARDEE DESOTO HIGHLANDS
@3 CHARLOTTE LEE

TPA 77/89 78/90 78 03564

CP

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 31, 4:29 PM EDTTornado WarningTBWPasco31 min

Nearby

Severe Thunderstorm Warnings in Florida, 1995Every severe thunderstorm warning in 1995

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.