Alert archive / Florida / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 252, NWS Jacksonville, FL

July 3, 1998Putnam County, Florida

NWS Jacksonville, FL issued this severe thunderstorm warning at Jul 3, 1998, 6:01 PM EDT for Putnam County, Florida. It was in force for 64 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 3, 1998, 6:01 PM EDT (22:01 UTC)
Expired: Jul 3, 1998, 7:05 PM EDT
In force: 64 min
Issued by: NWS Jacksonville, FL
Area: Whole counties

County Putnam County, FL

What was reported inside it

Time	Report	Where	Remark
Jul 3, 6:35 PM EDT	Thunderstorm Wind	East Palatka, FL	Large trees and power lines were blown down.

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

Jacksonville, FL (KJAX), launched 12:00Z, 10.0 hours before the alert went out and 99 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 487 J/kg
Mixed-layer CIN: -80 J/kg
Mixed-layer LCL: 1301 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: 7 m²/s²
0-3 km storm-relative helicity: 9 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KJAX 032201 RRA
SVRJAX
FLC107-032305-

BULLETIN
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSONVILLE FL
601 PM EDT FRI JUL 3 1998

THE NATIONAL WEATHER SERVICE IN JACKSONVILLE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  PUTNAM COUNTY IN NORTHEASTERN FLORIDA

* UNTIL 705 PM EDT


* AT 559 PM EDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 2 MILES WEST OF BRIDGEPORT MOVING SOUTH AT 10 MPH.

  THIS STORM CAN BE EX.PECTED IN THE VICINITY OF...
  BRIDGEPORT  BY 601 PM EDT
  BARDIN  BY 615 PM EDT
  ORANGE MILLS BY 625 PM EDT
  SPRINGSIDE BY 625 PM EDT
  PALATKA BY 635 PM EDT

THIS IS A DANGEROUS STORM. STAY INDOORS AWAY FROM WINDOWS.


JOHNSON

The office that day

Everything else NWS Jacksonville, FL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 3, 5:20 AM EDT	Severe Thunderstorm Warning	JAX	Saint Johns	80 min
Jul 3, 5:20 PM EDT	Severe Thunderstorm Warning	JAX	Saint Johns	80 min
Jul 3, 5:36 PM EDT	Severe Thunderstorm Warning	JAX	Flagler	74 min
Jul 3, 6:24 PM EDT	Severe Thunderstorm Warning	JAX	Clay	66 min
Jul 3, 7:14 PM EDT	Severe Thunderstorm Warning	JAX	Putnam	76 min

Nearby

Severe Thunderstorm Warnings in Florida, 1998 Every 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.