Alert archive / Florida / Severe Thunderstorm Watches in 1997
Severe Thunderstorm Watch 341
The Storm Prediction Center issued this severe thunderstorm watch at May 27, 1997, 5:30 PM EDT for 28 counties in Florida. It was in force for 4 hr.
The area
The outline as issued.
The facts
- Issued
- May 27, 1997, 5:30 PM EDT (21:30 UTC)
- Expired
- May 27, 1997, 9:00 PM EDT
- In force
- 4 hr
- Issued by
- the Storm Prediction Center
All 28 counties
Alachua County, FL, Baker County, FL, Bradford County, FL, Citrus County, FL, Clay County, FL, Columbia County, FL, Dixie County, FL, Flagler County, FL, Gilchrist County, FL, Hamilton County, FL, Hernando County, FL, Jefferson County, FL, Lafayette County, FL, Lake County, FL, Leon County, FL, Levy County, FL, Madison County, FL, Marion County, FL, Orange County, FL, Putnam County, FL, Saint Johns County, FL, Seminole County, FL, Sumter County, FL, Suwannee County, FL, Taylor County, FL, Union County, FL, Volusia County, FL, Wakulla County, FL
Warnings issued inside it
9 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 27, 5:31 PM EDT | Severe Thunderstorm Warning | JAX | Columbia, Suwannee | 59 min |
| May 27, 5:37 PM EDT | Severe Thunderstorm Warning | MLB | Lake, Volusia | 63 min |
| May 27, 6:03 PM EDT | Severe Thunderstorm Warning | JAX | Saint Johns | 42 min |
| May 27, 6:07 PM EDT | Severe Thunderstorm Warning | MLB | Seminole | 58 min |
| May 27, 6:11 PM EDT | Tornado Warning | JAX | Columbia | 34 min |
| May 27, 6:15 PM EDT | Severe Thunderstorm Warning | JAX | Baker, Bradford, Union | 60 min |
| May 27, 6:19 PM EDT | Severe Thunderstorm Warning | TAE | Dixie, Lafayette | 26 min |
| May 27, 6:23 PM EDT | Severe Thunderstorm Warning | JAX | Alachua, Gilchrist | 67 min |
| May 27, 7:07 PM EDT | Severe Thunderstorm Warning | MLB | Orange | 63 min |
The nearest sounding before it
Jacksonville, FL (KJAX), launched 12:00Z, 9.5 hours before the alert went out and 109 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
- 1370 J/kg
- Mixed-layer CIN
- -76 J/kg
- Mixed-layer LCL
- 909 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 16 m²/s²
- 0-3 km storm-relative helicity
- 12 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 27, 12:15 PM EDT | Severe Thunderstorm Watch | SPC | Baker, Bradford, Clay, Columbia, Duval, Flagler and 6 more | 6 hr |
| May 27, 12:30 PM EDT | Severe Thunderstorm Watch | SPC | Bay, Calhoun, Escambia, Gulf, Holmes, Jackson and 4 more | 6 hr |
Nearby
Severe Thunderstorm Watches in Florida, 1997Every severe thunderstorm watch in 1997
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.