Alert archive / Georgia / Tornado Warnings in 1999
Tornado Warning 20, NWS Charleston, SC
NWS Charleston, SC issued this tornado warning at Aug 23, 1999, 7:13 PM EDT for Bryan County, Chatham County, Georgia. It was in force for 32 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Aug 23, 1999, 7:13 PM EDT (23:13 UTC)
- Expired
- Aug 23, 1999, 7:45 PM EDT
- In force
- 32 min
- Issued by
- NWS Charleston, SC
- Area
- Whole counties
Counties Bryan County, GA, Chatham County, GA
The nearest sounding before it
Charleston AFB, SC (KCHS), launched 12:00Z, 11.2 hours before the alert went out and 156 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
- 2385 J/kg
- Mixed-layer CIN
- -13 J/kg
- Mixed-layer LCL
- 661 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- 3 m²/s²
- 0-3 km storm-relative helicity
- 31 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KCHS 232314 COR TORCHS GAC029-051-232345- BULLETIN...EAS ACTIVATION REQUESTED TORNADO WARNING...CORRECTED NATIONAL WEATHER SERVICE CHARLESTON SC 713 PM EDT MON AUG 23 1999 THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A * TORNADO WARNING FOR... SOUTHERN BRYAN COUNTY IN SOUTHEASTERN GEORGIA. SOUTHERN CHATHAM COUNTY IN SOUTHEASTERN GEORGIA. * UNTIL 745 PM EDT. * AT 710 PM EDT... AREA LAW ENFORCEMENT INDICATED A TORNADO FORT MCALLISTER... MOVING @SOUTHWEST 20 MPH. * THE TORNADO IS EXPECTED TO BE NEAR... FORT MCALLISTER. IF YOU ARE IN A MULTIPLE STORY BUILDING...GO TO A SMALL INTERIOR ROOM AWAY FROM WINDOWS. &
What forecasters said that day
The local office's own words before this tornado 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 tornado warning went out at Aug 23, 3:16 PM EDT, 3 hours 57 minutes earlier.
Area forecast discussion, Aug 23, 3:16 PM EDT, 3 hours 57 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE CHARLESTON SC 316 PM EDT MON AUG 23 1999 MODELS AGAIN PRODUCING A WISHY-WASHY SOLN WITH VERY WEAK DISTURBANCES SLIDING THRU THE BROAD UPR TROF INTO WED. NO CONCENTRATED AREAS OF LIFT TO FOCUS ON. GUID POPS HV COME BACK DOWN INTO THE SLGT CHC/CHC CATEGORIES. WHAT WE DO HAVE TO FOCUS ON IS A VERY MOIST ELY FLOW AT THE SFC. THIS SHUD AID IN SEABREEZE DEVELOPMENT DURING THE DAY...AND SHUD ALSO CAUSE SUM CONVERGENCE OVN AS IT COLLIDES WITH THE LAND BREEZE COMPONENT. MODELS DO SHOW SUM WEAK ENERGY COMING INTO THE AREA LATER TNGT AND TUE...BUT VERY WEAK. WE SEEM TO BE IN BETWEEN SYS TUE NGT/WED AS INITIAL S/WV MOVES BY AND MAIN TROF HANGS BACK TO THE W. ANOTHER FTR TO WATCH WL BE THE AREA OF DISTURBED WX JUST N OF PUERTO RICO AND HISPANIOLA. THIS CUD EASILY DEVELOP INTO SOMETHING MORE...AND WHATEVER DOES DEVELOP WL LIKELY PASS E OF THIS AREA BY THU. UPR TROF OVER TN VLY INTO THE EASTERN SEABOARD SHUD BE ABLE TO HOLD THIS SYS OFF AND KEEP IT OUT OVER THE WATER. BLV THIS FTR WL NOT COME INTO PLAY WITH FCST THIS WEEK...EXCEPT FOR SOME SWELLS OVER THE MARINE AREA. HOWEVER...IT WL NEED TO BE WATCHED. CWF...OVER THE WATERS WILL KEEP WINDS OUT OF THE EAST OVERNIGHT ALTHOUGH MODELS ARE SUGGESTING AT LEAST A BRIEF SHIFT TO THE SOUTHEAST. VEERING SHOULD RESUME ON TUESDAY AND WILL THEN KEEP DIRECTION SOUTHEAST THROUGH THE SHORT RANGE. GRADIENT LOOKS LIGHT BUT WILL INCREASE WAVES TO JUST BELOW SMALL CRAFT CRITERIA ON WEDNESDAY AS SWELL INCREASES FROM APPROACHING TROPICAL LOW. PRELIM CCF CHS BB 073/088 073/088 074 202323 CHL BB 078/086 078/086 079 202323 NBC BB 073/088 073/088 074 202323 SAV BB 073/088 073/088 074 202323 .CHS... SC...NONE. GA...NONE. TJR/
Nearby
Tornado Warnings in Georgia, 1999Every tornado warning in 1999Tornadoes 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.