Alert archive / Florida / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 56, NWS Tampa Bay, FL

March 1, 1998Citrus County, Florida

NWS Tampa Bay, FL issued this severe thunderstorm warning at Mar 1, 1998, 3:49 AM EST for Citrus County, Florida. It was in force for 31 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 1, 1998, 3:49 AM EST (08:49 UTC)
Expired
Mar 1, 1998, 4:20 AM EST
In force
31 min
Issued by
NWS Tampa Bay, FL
Area
Whole counties

County Citrus County, FL

The radar

The Tampa radar (KTBW), 128 km from the middle of the area, began a volume at 08:53 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 00:00Z, 8.8 hours before the alert went out and 128 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 00:00Z on 1998-03-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1852 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 00:00Z on 1998-03-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 104 square meters per square second.1939587897117Sfc1 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
1852 J/kg
Mixed-layer CIN
-8 J/kg
Mixed-layer LCL
516 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
104 m²/s²
0-3 km storm-relative helicity
136 m²/s²
Significant tornado parameter
0.9
Supercell composite
3.9

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 Mar 1, 3:20 AM EST, 29 minutes earlier.

Area forecast discussion, Mar 1, 3:20 AM EST, 29 minutes before
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In the hours before

Local storm report, Feb 28, 10:05 PM EST, 5 hours 44 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
1005 PM EST SAT FEB 28 1998

TIME(EST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

853 PM     NEW PORT RICHEY           FL   0.75 IN HAIL
2/28/98    PASCO                          DIME SIZE HAIL REPORTED BY
                                          SKYWARN STORM SPOTTER.

858 PM     NEW PORT RICHEY           FL   WIND DAMAGE
2/28/98    PASCO                          ROOF AND SHINGLE DAMAGE TO
                                          A SINGLE FAMILY DWELLING
                                          NEAR COUNTY ROAD 587 AND
                                          COUNTY ROAD 1.

913 PM     14ENE NEW PORT RICHEY     FL   0.75 IN HAIL
2/28/98    PASCO                          DIME SIZE HAIL REPORTED BY
                                          SKYWARN STORM SPOTTER.
.
ZALESKI
Local storm report, Feb 28, 10:05 PM EST, 5 hours 44 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
1005 PM EST SAT FEB 28 1998

TIME(EST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

853 PM     NEW PORT RICHEY           FL   0.75 IN HAIL
2/28/98    PASCO                          DIME SIZE HAIL REPORTED BY
                                          SKYWARN STORM SPOTTER.

858 PM     NEW PORT RICHEY           FL   WIND DAMAGE
2/28/98    PASCO                          ROOF AND SHINGLE DAMAGE TO
                                          A SINGLE FAMILY DWELLING
                                          NEAR COUNTY ROAD 587 AND
                                          COUNTY ROAD 1.

913 PM     14ENE NEW PORT RICHEY     FL   0.75 IN HAIL
2/28/98    PASCO                          DIME SIZE HAIL REPORTED BY
                                          SKYWARN STORM SPOTTER.
.
ZALESKI
Special weather statement, Feb 28, 11:43 PM EST, 4 hours 6 minutes before
FLZ042-043-048-049-010545-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
1143 PM EST SAT FEB 28 1998

...TORNADO WATCH CANCELLED FOR CITRUS...SUMTER...HERNANDO... AND PASCO
COUNTIES...

THE LINE OF THUNDERSTORMS HAS MOVED TO A POSIITON FROM ORLANDO TO ST.
PETERSBURG. THE THREAT FOR TORNADOES IS NOW SOUTH OF CITRUS...SUMTER
...HERNANDO...AND PASCO COUNTIES.
Special weather statement, Mar 1, 1:50 AM EST, 1 hour 59 minutes before
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Special weather statement, Mar 1, 1:50 AM EST, 1 hour 59 minutes before
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Special weather statement, Mar 1, 2:01 AM EST, 1 hour 48 minutes before
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      <div class="status" id="status">Temporary Notice</div>
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The office that day

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

IssuedProductOfficeCountiesLasted
Feb 28, 8:24 PM ESTSevere Thunderstorm WarningTBWPasco51 min
Feb 28, 9:07 PM ESTSevere Thunderstorm WarningTBWHernando48 min
Feb 28, 9:14 PM ESTSevere Thunderstorm WarningTBWPasco46 min
Feb 28, 11:35 PM ESTSevere Thunderstorm WarningTBWHillsborough45 min
Mar 1, 12:28 AM ESTSevere Thunderstorm WarningTBWHillsborough47 min
Mar 1, 12:42 AM ESTSevere Thunderstorm WarningTBWPolk63 min
Mar 1, 12:53 AM ESTTornado WarningTBWPolk47 min
Mar 1, 1:01 AM ESTSevere Thunderstorm WarningTBWHardee49 min
Mar 1, 5:04 AM ESTSevere Thunderstorm WarningTBWManatee, Sarasota61 min
Mar 1, 5:29 AM ESTTornado WarningTBWManatee31 min
Mar 1, 5:36 AM ESTTornado WarningTBWManatee, Sarasota34 min
Mar 1, 6:11 AM ESTSevere Thunderstorm WarningTBWManatee, Sarasota44 min
Mar 1, 7:12 AM ESTSevere Thunderstorm WarningTBWCharlotte48 min
Mar 1, 8:23 AM ESTSevere Thunderstorm WarningTBWLee47 min

Nearby

Severe Thunderstorm Warnings in Florida, 1998Every severe thunderstorm warning in 1998

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.