Alert archive / Georgia / Flash Flood Warnings in 1999
Flash Flood Warning 6, NWS Charleston, SC
NWS Charleston, SC issued this flash flood warning at Jun 29, 1999, 9:56 AM EDT for Chatham County, Georgia. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jun 29, 1999, 9:56 AM EDT (13:56 UTC)
- Expired
- Jun 29, 1999, 12:55 PM EDT
- In force
- 3 hr
- Issued by
- NWS Charleston, SC
- Area
- Whole counties
County Chatham County, GA
The nearest sounding before it
Charleston AFB, SC (KCHS), launched 12:00Z, 1.9 hours before the alert went out and 145 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
- 966 J/kg
- Mixed-layer CIN
- -28 J/kg
- Mixed-layer LCL
- 463 m above ground
- 0-6 km bulk shear
- 4 kt
- 0-1 km storm-relative helicity
- 72 m²/s²
- 0-3 km storm-relative helicity
- 136 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 flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Charleston, SC wrote its last area forecast discussion before this flash flood warning went out at Jun 29, 3:30 AM EDT, 6 hours 26 minutes earlier.
Area forecast discussion, Jun 29, 3:30 AM EDT, 6 hours 26 minutes before
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</html>The office that day
Everything else NWS Charleston, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 29, 9:41 AM EDT | Flash Flood Warning | CHS | Jasper | 3 hr |
| Jun 29, 9:41 AM EDT | Flash Flood Warning | CHS | Beaufort | 3 hr |
| Jun 29, 3:35 PM EDT | Flash Flood Warning | CHS | Jasper | 4 hr |
| Jun 29, 3:35 PM EDT | Flash Flood Warning | CHS | Beaufort | 4 hr |
| Jun 29, 8:56 AM EDT | Severe Thunderstorm Warning | CHS | Chatham | 44 min |
| Jun 29, 11:25 AM EDT | Tornado Warning | CHS | Chatham | 35 min |
| Jun 29, 3:35 PM EDT | Flash Flood Warning | CHS | Chatham | 4 hr |
| Jun 29, 3:46 PM EDT | Flash Flood Warning | CHS | Effingham | 3 hr |
| Jun 29, 4:34 PM EDT | Severe Thunderstorm Warning | CHS | Liberty, Long | 46 min |
Nearby
Flash Flood Warnings in Georgia, 1999Every flash flood warning in 1999
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.