Alert archive / Florida / Tornado Warnings in 1998
Tornado Warning 40, NWS Tampa Bay, FL
NWS Tampa Bay, FL issued this tornado warning at Mar 8, 1998, 11:51 PM EST for Pasco County, Florida. It was in force for 44 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 8, 1998, 11:51 PM EST (04:51 UTC)
- Expired
- Mar 9, 1998, 12:35 AM EST
- In force
- 44 min
- Issued by
- NWS Tampa Bay, FL
- Area
- Whole counties
County Pasco County, FL
The radar
The Tampa radar (KTBW), 67 km from the middle of the area, began a volume at 04:52 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Mar 8, 8:00 PM EST | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Tampa Bay, FL (KTBW), launched 00:00Z, 4.9 hours before the alert went out and 67 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
- 1169 J/kg
- Mixed-layer CIN
- -16 J/kg
- Mixed-layer LCL
- 873 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 238 m²/s²
- 0-3 km storm-relative helicity
- 163 m²/s²
- Significant tornado parameter
- 1.0
- Supercell composite
- 4.9
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KTBW 090450 RRA TORTBW FLC101-090535- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 1151 PM EST SUN MAR 8 1998 THE NATIONAL WEATHER SERVICE HAS ISSUED A...TORNADO WARNING EFFECTIVE UNTIL 1235 AM EST FOR ...PASCO COUNTY AT 1150 PM EST... NATIONAL WEATHER SERVICE DOPPLER RADAR IN RUSKIN INDICATED A DEVELOPING TORNADO JUST EAST OF TARPON SPRINGS ALONG THE PINELLAS/PASCO COUNTY LINE...MOVING NORTHEAST AT 45 MPH. A DOPPLER RADAR DETECTED TORNADO MEANS THAT THERE IS STRONG ROTATION WITHIN A STORM. THE STORM MAY NOT BE PRODUCING A TORNADO AT THE MOMENT...BUT WILL LIKELY DURING THE WARNING PERIOD. THE STORM MAY ALSO INCLUDE HAIL AND DAMAGING STRAIGHT LINE WIND. THOSE IN THE PATH OF THE STORM ARE ADVISED TO TAKE COVER IMMEDIATELY. NASH
The office that day
Everything else NWS Tampa Bay, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 8, 10:25 PM EST | Severe Thunderstorm Warning | TBW | Hernando, Pasco | 55 min |
| Mar 9, 12:29 AM EST | Severe Thunderstorm Warning | TBW | Manatee, Sarasota | 51 min |
| Mar 9, 12:34 AM EST | Severe Thunderstorm Warning | TBW | Hillsborough, Polk | 51 min |
| Mar 9, 12:52 AM EST | Severe Thunderstorm Warning | TBW | Hardee | 48 min |
| Mar 9, 1:24 AM EST | Severe Thunderstorm Warning | TBW | Highlands, Polk | 46 min |
| Mar 9, 1:29 AM EST | Severe Thunderstorm Warning | TBW | Charlotte, Sarasota | 46 min |
| Mar 9, 1:32 AM EST | Tornado Warning | TBW | Polk | 33 min |
| Mar 9, 1:34 AM EST | Tornado Warning | TBW | Highlands | 36 min |
Nearby
Tornado Warnings in Florida, 1998Every tornado warning in 1998Tornadoes 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.