Alert archive / Georgia / Severe Thunderstorm Warnings in 1989
Severe Thunderstorm Warning 39, NWS Jacksonville, FL
NWS Jacksonville, FL issued this severe thunderstorm warning at Jun 16, 1989, 3:49 PM EDT for Effingham County, Georgia. It was in force for 41 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
- Jun 16, 1989, 3:49 PM EDT (19:49 UTC)
- Expired
- Jun 16, 1989, 4:30 PM EDT
- In force
- 41 min
- Issued by
- NWS Jacksonville, FL
- Area
- Whole counties
County Effingham County, GA
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 |
|---|---|---|---|
| Jun 16, 3:50 PM EDT | Thunderstorm Wind 0 | Effingham, GA |
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
Charleston AFB, SC (KCHS), launched 12:00Z, 7.8 hours before the alert went out and 139 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- NaN m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 137 m²/s²
- 0-3 km storm-relative helicity
- 162 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 4.1
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, Jun 16, 3:35 PM EDT, 14 minutes before
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</html>The office that day
Everything else NWS Jacksonville, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 15, 8:40 PM EDT | Severe Thunderstorm Warning | JAX | Duval, Saint Johns | 50 min |
| Jun 15, 8:40 PM EDT | Severe Thunderstorm Warning | JAX | Putnam | 50 min |
| Jun 16, 12:35 PM EDT | Tornado Warning | JAX | Lafayette, Suwannee | 25 min |
| Jun 16, 1:09 PM EDT | Severe Thunderstorm Warning | JAX | Clinch, Echols | 51 min |
| Jun 16, 1:34 PM EDT | Severe Thunderstorm Warning | JAX | Ware | 56 min |
| Jun 16, 2:20 PM EDT | Severe Thunderstorm Warning | JAX | Tattnall | 40 min |
| Jun 16, 2:57 PM EDT | Severe Thunderstorm Warning | JAX | Bulloch, Candler, Evans | 63 min |
| Jun 16, 4:00 PM EDT | Severe Thunderstorm Warning | JAX | Chatham | 60 min |
Nearby
Severe Thunderstorm Warnings in Georgia, 1989Every severe thunderstorm warning in 1989
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.