Alert archive / Georgia / Severe Thunderstorm Warnings in 1999
Severe Thunderstorm Warning 480, NWS Atlanta, GA
NWS Atlanta, GA issued this severe thunderstorm warning at Jul 11, 1999, 5:09 PM EDT for Meriwether County, Georgia. It was in force for 36 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 11, 1999, 5:09 PM EDT (21:09 UTC)
- Expired
- Jul 11, 1999, 5:45 PM EDT
- In force
- 36 min
- Issued by
- NWS Atlanta, GA
- Area
- Whole counties
County Meriwether County, GA
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 11, 5:30 PM EDT | Thunderstorm Wind | Rocky Mt, GA | Lamar EMC reported large tree limbs were blown down onto power lines, causing power outages. |
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
Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 9.2 hours before the alert went out and 41 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
- 484 J/kg
- Mixed-layer CIN
- -61 J/kg
- Mixed-layer LCL
- 771 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 44 m²/s²
- 0-3 km storm-relative helicity
- 48 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
660 WUUS1 KATL 112110 SVRATL GAC199-112145- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE PEACHTREE CITY GA 509 PM EDT SUN JUL 11 1999 THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHERN MERIWETHER COUNTY IN WEST CENTRAL GEORGIA * UNTIL 545 PM EDT * AT 508 PM EDT... A SEVERE THUNDERSTORM WAS INDICATED BY DOPPLER RADAR 5 MILES WEST OF ROCKY MOUNT... MOVING EAST AT 25 MPH. * SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM ARE... ROCKY MOUNT AROUND 520 PM EDT... WOOSTER AROUND 525 PM EDT... OAKLAND AROUND 530 PM EDT... GAY AROUND 530 PM EDT... ALVATON AROUND 535 PM EDT... THIS THUNDERSTORM IS PRODUCING VERY HEAVY RAIN THAT MAY FLOOD ROADS QUICKLY. DO NOT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD. IF YOU SEE FLOODING...LARGE HAIL OR WIND DAMAGE...CALL THE NATIONAL WEATHER SERVICE AT 770-486-1133 AT EXTENSION 2 0 4.
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, Jul 11, 4:30 PM EDT, 39 minutes before
GAZ038-039-050-051-060>062-072>076-082>086-094>098-105>113-112230- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PEACHTREE CITY GA 430 PM EDT SUN JUL 11 1999 THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS FOR THIS AFTERNOON AND TONIGHT FOR PORTIONS OF NORTHEAST AND CENTRAL GEORGIA. IT INCLUDES AN AREA EAST OF A LINE FROM HIAWASSE IN TOWNS COUNTY TO CANTON IN CHEROKEE COUNTY TO FRANKLIN IN HEARD COUNTY. AN UPPER LEVEL DISTURBANCE MOVING EAST ACROSS GEORGIA ALONG WITH THE MOIST AND UNSTABLE AIR WILL CAUSE THUNDERSTORMS. SOME OF THESE STORMS MIGHT REACH SEVERE LIMITS BY PRODUCING STRONG GUSTY WINDS AND LARGE HAIL. EMERGENCY MANAGEMENT PERSONNEL AND SPOTTERS SHOULD BE ON THE ALERT FOR POSSIBLE ACTIVATION.
Special weather statement, Jul 11, 4:30 PM EDT, 39 minutes before
GAZ038-039-050-051-060>062-072>076-082>086-094>098-105>113-112230- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PEACHTREE CITY GA 430 PM EDT SUN JUL 11 1999 THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS FOR THIS AFTERNOON AND TONIGHT FOR PORTIONS OF NORTHEAST AND CENTRAL GEORGIA. IT INCLUDES AN AREA EAST OF A LINE FROM HIAWASSE IN TOWNS COUNTY TO CANTON IN CHEROKEE COUNTY TO FRANKLIN IN HEARD COUNTY. AN UPPER LEVEL DISTURBANCE MOVING EAST ACROSS GEORGIA ALONG WITH THE MOIST AND UNSTABLE AIR WILL CAUSE THUNDERSTORMS. SOME OF THESE STORMS MIGHT REACH SEVERE LIMITS BY PRODUCING STRONG GUSTY WINDS AND LARGE HAIL. EMERGENCY MANAGEMENT PERSONNEL AND SPOTTERS SHOULD BE ON THE ALERT FOR POSSIBLE ACTIVATION.
The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 11, 3:31 PM EDT | Severe Thunderstorm Warning | FFC | Jasper, Newton | 34 min |
| Jul 11, 5:48 PM EDT | Severe Thunderstorm Warning | FFC | Emanuel | 32 min |
| Jul 11, 5:50 PM EDT | Flash Flood Warning | FFC | Fannin | 3 hr |
Nearby
Severe Thunderstorm Warnings in Georgia, 1999Every severe thunderstorm 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.