Alert archive / Florida / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 12, NWS Tampa Bay, FL
NWS Tampa Bay, FL issued this severe thunderstorm warning at Aug 1, 1986, 6:06 PM EDT for Citrus County, Hernando County, Florida. It was in force for 39 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Aug 1, 1986, 6:06 PM EDT (22:06 UTC)
- Expired
- Aug 1, 1986, 6:45 PM EDT
- In force
- 39 min
- Issued by
- NWS Tampa Bay, FL
- Area
- Whole counties
Counties Citrus County, FL, Hernando County, FL
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 1, 6:30 PM EDT | Hail 1.75 | Citrus, FL |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Tampa Bay, FL (KTBW), launched 12:00Z, 10.1 hours before the alert went out and 111 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
- 2551 J/kg
- Mixed-layer CIN
- -24 J/kg
- Mixed-layer LCL
- 648 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 54 m²/s²
- 0-3 km storm-relative helicity
- 75 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.
In the hours before
Special weather statement, Aug 1, 1:13 PM EDT, 4 hours 53 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TAMPA BAY AREA RUSKIN FL 1PM EDT FRI AUG 1 1986 ...A HOT HAZY DAY IN TAMPA FLORIDA... THE HEAT INDEX..OR THE APPARENT OUTSIDE TEMPERATURE AT TAMPA INTERNATIONAL AIRPORT THIS NOON HOUR WAS 110 DEGREES. THE ACTUAL TEMPERATURE AT 1 PM EDT WAS 94..JUST ONE DEGREE SHORT OF THE RECORD FOR THIS DATE. WHEN THE HEAT INDEX IS ABOVE 105..EVERYONE SHOULD USE EXTRA CAUTION IN OUTDOOR ACTIVITIES. SUNSTROKE..HEAT CRAMPS..AND HEAT EXHAUSTION ARE VERY POSSIBLE WITH ANY OUTDOOR PHYSICAL ACTIVITY..OR WITH PROLONGED EXPOSURE TO THE SUN. TRY TO KEEP COOL..AND PUT OFF MOWING THAT YARD UNTIL THE COOLER EVENING OR MORNING HOURS.
The office that day
Everything else NWS Tampa Bay, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 1, 7:07 PM EDT | Severe Thunderstorm Warning | TBW | Citrus, Hernando | 68 min |
| Aug 1, 7:14 PM EDT | Severe Thunderstorm Warning | TBW | Manatee, Sarasota | 61 min |
| Aug 1, 7:42 PM EDT | Severe Thunderstorm Warning | TBW | Hillsborough | 63 min |
Nearby
Severe Thunderstorm Warnings in Florida, 1986Every severe thunderstorm warning in 1986
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.