Alert archive / Georgia / Flash Flood Warnings in 2003

Flash Flood Warning 3, NWS Charleston, SC

April 8, 2003Bryan County, Chatham County, Georgia

NWS Charleston, SC issued this flash flood warning at Apr 8, 2003, 5:39 PM EDT for Bryan County, Chatham County, Georgia. It was in force for 111 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Apr 8, 2003, 5:39 PM EDT (21:39 UTC)
Expired: Apr 8, 2003, 7:30 PM EDT
In force: 111 min
Issued by: NWS Charleston, SC
Area: Counties, with a storm outline in the text

Counties Bryan County, GA, Chatham County, GA

The radar

The Charleston,SC radar (KCLX), 84 km from the middle of the area, began a volume at 21:42 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 12:00Z, 9.7 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.

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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 593 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 100 m²/s²
0-3 km storm-relative helicity: 124 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 
WGUS52 KCHS 082139
FFWCHS
GAC029-051-082330-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE CHARLESTON SC
539 PM EDT TUE APR 8 2003

THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHEAST BRYAN COUNTY IN SOUTHEAST GEORGIA...
  CHATHAM COUNTY IN SOUTHEAST GEORGIA...

* UNTIL 730 PM EDT.

* AT 539 PM EDT...RADAR CONTINUED TO INDICATE MODERATE TO HEAVY RAIN
  FALLING ACROSS MUCH OF CHATHAM COUNTY AND SOUTHEAST BRYAN COUNTY.
  MUCH OF THIS AREA HAS RECEIVED SIGNIFICANT RAINFALL THIS AFTERNOON.
  ANOTHER BATCH OF HEAVY RAIN WILL MOVE INTO THE WARNING AREA BY
  545 PM WITH AN ADDITIONAL 1 TO 2 INCHES POSSIBLE. SPOTTER REPORTS 
  OUT OF RICHMOND HILL INDICATE SOME ROADWAYS ARE BECOMING COVERED
  WITH WATER AND SIGNIFICANT STANDING WATER IS BECOMING MORE
  WIDESPREAD. ADDITIONAL HEAVY RAIN WILL PRODUCE FLASH FLOODING.

* FLASH FLOODING WILL OCCUR IN AND AROUND...
  SKIDAWAY ISLAND AND BEAULIEU...
  VERNONBURG AND WINDSOR FOREST...
  ISLE OF HOPE AND SANDFLY...
  THUNDERBOLT AND RIVERSIDE...
  RICHMOND HILL...
  KELLER...

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY
FOR HIGHER GROUND. MOST FLOOD DEATHS OCCUR IN AUTOMOBILES.

LAT...LON 3190 8139 3172 8118 3182 8095 3205 8091
          3204 8117

$$

2 follow-up statements

000 
WGUS72 KCHS 082230
FFSCHS
GAC029-051-082330-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
630 PM EDT TUE APR 8 2003

...A FLASH FLOOD WARNING REMAINS IN EFFECT FOR CHATHAM COUNTY AND 
SOUTHEAST BRYAN COUNTY UNTIL 730 PM EDT...

AT 620 PM EDT...SPOTTERS REPORTS SIGNIFICANT STANDING WATER IN THE 
COMMUNITY OF KELLER WITH WATER REPORTED FLOWING ACROSS HIGHWAY 144 
NEAR FORT MCALLISTER. RADAR ESTIMATES BETWEEN 2 AND 3 INCHES OF RAIN 
HAS FALLEN IN AND AROUND KELLER SINCE LATE AFTERNOON WITH SIMILAR 
AMOUNTS FROM RICHMOND HILL TO WHITE BLUFF...ISLE OF HOPE AND 
THUNDERBOLT IN EASTERN CHATHAM COUNTY.

ALTHOUGH RAINFALL RATES ARE BEGINNING TO DECREASE ACROSS THE WARNING 
AREA...MODERATE RAIN WILL PERSIST ACROSS MUCH OF CHATHAM COUNTY AND 
SOUTHEAST BRYAN COUNTY THROUGH 730 PM. ADDITIONAL RAIN AMOUNTS OF UP 
TO 1 INCH CAN BE EXPECTED. 

REPORT ANY FLOODING TO YOUR LOCAL LAW ENFORCEMENT AGENCY AND ASK 
THEM TO IMMEDIATELY RELAY THE REPORT TO THE NATIONAL WEATHER SERVICE 
IN CHARLESTON.

$$

000 
WGUS72 KCHS 082330
FFSCHS
GAC029-051-082345-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
730 PM EDT TUE APR 8 2003

...FLASH FLOOD WARNING FOR CHATHAM COUNTY AND SOUTHEAST BRYAN COUNTY 
HAS EXPIRED...

THE HEAVIEST RAIN HAS SHIFTED OUT OF CHATHAM AND SOUTHEAST BRYAN 
COUNTY INTO SOUTHEAST SOUTH CAROLINA...THEREFORE THE FLASH FLOOD 
WARNING HAS BEEN ALLOWED TO EXPIRE. FLASH FLOODING WAS REPORTED IN 
SEVERAL LOCATIONS IN EASTERN CHATHAM COUNTY AND SOUTHEAST BRYAN 
COUNTY LATE THIS AFTERNOON AND EVENING. ONLY LIGHT RAIN IS EXPECTED 
TO FALL ACROSS THE AREA THROUGH THIS EVENING...HOWEVER MODERATE TO 
HEAVY RAIN IS EXPECTED TO REDEVELOP LATER TONIGHT. A FLASH FLOOD 
WATCH REMAINS IN EFFECT FOR PORTIONS OF SOUTHEAST GEORGIA THROUGH 
WEDNESDAY AFTERNOON.

PLEASE REPORT ANY DAMAGE OR FLOODING TO YOUR LOCAL LAW ENFORCEMENT 
AGENCY AND ASK THEM TO IMMEDIATELY RELAY THE REPORT TO THE NATIONAL 
WEATHER SERVICE IN CHARLESTON.

$$

ST

The office that day

Everything else NWS Charleston, SC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 8, 3:53 PM EDT	Flash Flood Warning	CHS	Chatham	112 min

Nearby

Flash Flood Warnings in Georgia, 2003 Every flash flood warning in 2003

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; radar from the NEXRAD Level II archive.