Alert archive / Florida / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 111, NWS Tampa Bay, FL
NWS Tampa Bay, FL issued this severe thunderstorm warning at Jun 19, 1998, 2:39 PM EDT for Hillsborough 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
- Jun 19, 1998, 2:39 PM EDT (18:39 UTC)
- Expired
- Jun 19, 1998, 3:10 PM EDT
- In force
- 31 min
- Issued by
- NWS Tampa Bay, FL
- Area
- Whole counties
County Hillsborough County, FL
The nearest sounding before it
Tampa Bay, FL (KTBW), launched 12:00Z, 6.7 hours before the alert went out and 23 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.
- Mixed-layer CAPE
- 1631 J/kg
- Mixed-layer CIN
- -84 J/kg
- Mixed-layer LCL
- 1344 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 3 m²/s²
- 0-3 km storm-relative helicity
- 4 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
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 Jun 19, 9:31 AM EDT, 5 hours 8 minutes earlier.
Area forecast discussion, Jun 19, 9:31 AM EDT, 5 hours 8 minutes before
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</html>In the hours before
Special weather statement, Jun 19, 10:45 AM EDT, 3 hours 54 minutes before
FLZ039-042-043-048>052-055>057-060>062-065-192330- WEST CENTRAL AND SOUTHWEST FLORIDA HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 1045 AM EDT FRI JUN 19 1998 ...HEAT INDEX VALUES OF 105-110 EXPECTED THIS AFTERNOON... ...HIGH FIRE DANGER CONTINUES... ...WIDELY SCATTERED THUNDERSTORMS EXPECTED THIS AFTERNOON... HIGH PRESSURE AT THE SURFACE AND ALOFT FIRMLY ENTRENCHED ACROSS THE STATE WILL MAINTAIN HOT AND HUMID CONDITIONS ACROSS ALL OF WEST CENTRAL AND SOUTHWEST FLORIDA THIS AFTERNOON...BUT WIDELY SCATTERED THUNDERSTORMS MAY PROVIDE SOME TEMPORARY RELIEF ALONG WITH MUCH NEEDED RAINFALL. AFTERNOON TEMPERATURES WILL AGAIN SOAR INTO THE MIDDLE AND UPPER 90S ALONG COASTAL AREAS WITH UPPER 90S TO NEAR 100 DEGREE READINGS OVER THE INTERIOR. THE NEAR RECORD HEAT WILL AGAIN LEAD TO HIGH HEAT INDEX VALUES...WITH "FEEL LIKE" TEMPERATURES OF BETWEEN 100 TO 105 DEGREES ALONG COASTAL AREAS...AND 105 TO 110 DEGREES INLAND LOCALES. IF YOU MUST BE OUTDOORS THIS AFTERNOON...DRINK AMPLE WATER...STAY OUT OF THE SUN AS MUCH AS POSSIBLE...AND CURTAIL ANY PROLONGED STRENUOUS ACTIVITY. MUCH OF WEST CENTRAL FLORIDA REMAINS VERY DRY WITH VEGETATION PRONE TO THE SPREAD OF WILDFIRE...SO BE EXTREMELY CAREFUL WITH ANY FIRE SOURCE. ENOUGH MOISTURE AND ADEQUATE INSTABILITY IN THE ATMOSPHERE ALONG WITH THE DEVELOPMENT OF SEA BREEZES AND DAYTIME HEATING WILL RESULT IN WIDELY SCATTERED AFTERNOON AND EVENING THUNDERSTORMS...WITH THE BEST PROSPECTS FOR THUNDERSTORMS OVER THE INTERIOR AND SOUTHWEST PENINSULA. DEADLY LIGHTNING...GUSTY WINDS TO 35 MPH AND POSSIBLE HAIL WILL ACCOMPANY LOCALLY STRONGER STORMS. IF THREATENING WEATHER APPROACHES YOUR LOCATION MOVE 8INDOORS IMMEDIATELY. MCMICHAEL
Special weather statement, Jun 19, 10:45 AM EDT, 3 hours 54 minutes before
FLZ039-042-043-048>052-055>057-060>062-065-192330- WEST CENTRAL AND SOUTHWEST FLORIDA HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 1045 AM EDT FRI JUN 19 1998 ...HEAT INDEX VALUES OF 105-110 EXPECTED THIS AFTERNOON... ...HIGH FIRE DANGER CONTINUES... ...WIDELY SCATTERED THUNDERSTORMS EXPECTED THIS AFTERNOON... HIGH PRESSURE AT THE SURFACE AND ALOFT FIRMLY ENTRENCHED ACROSS THE STATE WILL MAINTAIN HOT AND HUMID CONDITIONS ACROSS ALL OF WEST CENTRAL AND SOUTHWEST FLORIDA THIS AFTERNOON...BUT WIDELY SCATTERED THUNDERSTORMS MAY PROVIDE SOME TEMPORARY RELIEF ALONG WITH MUCH NEEDED RAINFALL. AFTERNOON TEMPERATURES WILL AGAIN SOAR INTO THE MIDDLE AND UPPER 90S ALONG COASTAL AREAS WITH UPPER 90S TO NEAR 100 DEGREE READINGS OVER THE INTERIOR. THE NEAR RECORD HEAT WILL AGAIN LEAD TO HIGH HEAT INDEX VALUES...WITH "FEEL LIKE" TEMPERATURES OF BETWEEN 100 TO 105 DEGREES ALONG COASTAL AREAS...AND 105 TO 110 DEGREES INLAND LOCALES. IF YOU MUST BE OUTDOORS THIS AFTERNOON...DRINK AMPLE WATER...STAY OUT OF THE SUN AS MUCH AS POSSIBLE...AND CURTAIL ANY PROLONGED STRENUOUS ACTIVITY. MUCH OF WEST CENTRAL FLORIDA REMAINS VERY DRY WITH VEGETATION PRONE TO THE SPREAD OF WILDFIRE...SO BE EXTREMELY CAREFUL WITH ANY FIRE SOURCE. ENOUGH MOISTURE AND ADEQUATE INSTABILITY IN THE ATMOSPHERE ALONG WITH THE DEVELOPMENT OF SEA BREEZES AND DAYTIME HEATING WILL RESULT IN WIDELY SCATTERED AFTERNOON AND EVENING THUNDERSTORMS...WITH THE BEST PROSPECTS FOR THUNDERSTORMS OVER THE INTERIOR AND SOUTHWEST PENINSULA. DEADLY LIGHTNING...GUSTY WINDS TO 35 MPH AND POSSIBLE HAIL WILL ACCOMPANY LOCALLY STRONGER STORMS. IF THREATENING WEATHER APPROACHES YOUR LOCATION MOVE 8INDOORS IMMEDIATELY. MCMICHAEL
The office that day
Everything else NWS Tampa Bay, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 19, 1:46 PM EDT | Severe Thunderstorm Warning | TBW | Hernando, Pasco | 34 min |
| Jun 19, 3:13 PM EDT | Severe Thunderstorm Warning | TBW | Hillsborough | 32 min |
| Jun 19, 3:13 PM EDT | Severe Thunderstorm Warning | TBW | Hillsborough | 47 min |
| Jun 19, 3:47 PM EDT | Severe Thunderstorm Warning | TBW | Polk | 28 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.