Alert archive / Florida / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 154, NWS Tallahassee, FL
NWS Tallahassee, FL issued this severe thunderstorm warning at Jul 1, 1998, 4:27 PM EDT for Madison County, Florida. It was in force for 48 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
- Jul 1, 1998, 4:27 PM EDT (20:27 UTC)
- Expired
- Jul 1, 1998, 5:15 PM EDT
- In force
- 48 min
- Issued by
- NWS Tallahassee, FL
- Area
- Whole counties
County Madison County, FL
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 1, 4:40 PM EDT | Thunderstorm Wind | Greenville, 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.
The nearest sounding before it
Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 8.5 hours before the alert went out and 80 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
- 177 J/kg
- Mixed-layer CIN
- -217 J/kg
- Mixed-layer LCL
- 1367 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- -9 m²/s²
- 0-3 km storm-relative helicity
- 15 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
970 WUUS1 KTLH 012028 SVRTLH FLC079-012115- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TALLAHASSEE FL 427 PM EDT WED JUL 1 1998 THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... MADISON COUNTY IN NORTHERN FLORIDA * UNTIL 515 PM EDT * AT 425 PM EDT... DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 9 MILES SOUTHWEST OF MADISON MOVING EAST AT 15 MPH. THIS STORM WILL PASS SOUTH OF MADISON AND LEE. SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MPH... DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS.
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 Tallahassee, FL wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 1, 2:50 PM EDT, 1 hour 37 minutes earlier.
Area forecast discussion, Jul 1, 2:50 PM EDT, 1 hour 37 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TALLAHASSEE FL 250 PM EDT WED JUL 1 1998 UPPER FEATURES DO NOT CHANGE MUCH ACROSS THE FA THROUGH FRI WITH HI PRES...SFC AND ALOFT GENERALLY IN CONTROL. CLOSED LOW OFF NEW ENGLAND MOVES OFF NE CST AS IMPULSES MOVE FROM THE WESTERN GREAT LAKES TOWARD THE MID-ATLC IN NW FLOW ALOFT. TROPICAL WAVE NEAR YUCATAN MOVES TOWARD S TX THRU FRI WITH TROPICAL MOISTURE MAKING ITS WAY INTO TX/LA BY THE END OF THE WEEK. TLH CWA WILL BE BETWEEN THESE TWO MAIN FEATURES AFFECTING THE ERN HALF OF THE COUNTRY. WEAK FRONTAL BOUNDARY TO MAKE IT TO CENTRAL GA AND STALL OUT. THIS MAY BE A FOCUSING MECHANISM FOR SOME STORMS ACROSS OUR GA CWA THE NEXT FEW DAYS...BUT MORE LIKELY WILL SEE AFTN SEA BRZ BE THE MAIN INITIATOR OF TSTMS ACROSS THE AREA. WILL LEAN TOWARD 30 POPS THU/40 POPS FRI FOR AFTN SEA BRZ CONVECTION...HIGHER THAN RECENT 20 POP DAYS BUT STILL LESS THAN OUR 48 CLIMO POP FOR THIS TIME OF YEAR. HIGH TEMPS WILL RANGE FROM LWR/MID 90S COAST AND MID/UPR 90S INLAND. LOWS IN THE LWR 70S/MID 70S INLAND AND UPR 70S COAST. VOLKMER
The office that day
Everything else NWS Tallahassee, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 1, 3:24 PM EDT | Severe Thunderstorm Warning | TAE | Liberty | 46 min |
| Jul 1, 4:06 PM EDT | Severe Thunderstorm Warning | TAE | Walton | 49 min |
| Jul 1, 4:21 PM EDT | Severe Thunderstorm Warning | TAE | Leon | 49 min |
| Jul 1, 5:02 PM EDT | Severe Thunderstorm Warning | TAE | Jefferson | 48 min |
| Jul 1, 5:03 PM EDT | Severe Thunderstorm Warning | TAE | Walton | 62 min |
| Jul 1, 5:15 PM EDT | Severe Thunderstorm Warning | TAE | Wakulla | 50 min |
| Jul 1, 5:22 PM EDT | Severe Thunderstorm Warning | TAE | Washington | 48 min |
| Jul 1, 5:44 PM EDT | Severe Thunderstorm Warning | TAE | Taylor | 61 min |
| Jul 1, 6:21 PM EDT | Severe Thunderstorm Warning | TAE | Jackson | 49 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.