Alert archive / Georgia / Flash Flood Warnings in 2007
Flash Flood Warning 23, NWS Charleston, SC
NWS Charleston, SC issued this flash flood warning at Dec 21, 2007, 7:32 AM EST for Chatham County, Georgia. It was in force for 3 hr. 7 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Dec 21, 2007, 7:32 AM EST (12:32 UTC)
- Expired
- Dec 21, 2007, 10:30 AM EST
- In force
- 3 hr
- Issued by
- NWS Charleston, SC
- Area
- Storm-based polygon
- Flood severity
- None
County Chatham County, GA
The radar
The Charleston,SC radar (KCLX), 62 km from the middle of the area, began a volume at 12:35 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Dec 21, 7:45 AM EST | FLASH FLOOD | Garden City, GA | AIRPORT RD REPORTED FLOODED BY CHATHAM EM. |
| Dec 21, 7:45 AM EST | FLASH FLOOD | Port Wentworth, GA | BONNIE BRIDGE RD REPORTED FLOODED BY CHATHAM EM. |
| Dec 21, 7:48 AM EST | HEAVY RAIN 6.28 | 2 Sw Port Wentworth, GA | 6.28 INCHES OF RAIN HAS FALLEN SINCE 11 PM YESTERDAY AT SAVANNAH AIRPORT ASOS. |
| Dec 21, 8:25 AM EST | FLASH FLOOD | Savannah, GA | CHATHAM COUNTY REPORTS FLOODING ON MORE THAN 10 ROADS IN AND NORTH OF SAVANNAH. |
| Dec 21, 9:00 AM EST | FLASH FLOOD | Garden City, GA | HEAVY RAIN COMPLETELY FLOODED PARTS OF COMMERCE BOULEVARD IN GARDEN CITY. THE DEPTH OF THE WATER WAS AS HIGH AS 6 FEET IN PLACES AND SEVERAL CARS WERE COMPLETELY SUBMERGED. |
| Dec 21, 9:35 AM EST | FLASH FLOOD | 1 N Savannah, GA | ONE HOUSE EVACUATED DUE TO FLOODING ON EAST 33RD STREET. |
| Dec 21, 9:35 AM EST | FLASH FLOOD | 1 Ssw Port Wentworth, GA | INTERSECTION OF ROBERT MILLER AND HIGHWAY 301 FLOODED UNDER THE RAILROAD CROSSING. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Jacksonville, FL (KJAX), launched 12:00Z, 0.5 hours before the alert went out and 185 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
- 773 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 333 m²/s²
- 0-3 km storm-relative helicity
- 249 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WGUS52 KCHS 211235
FFWCHS
GAC051-211530-
/O.NEW.KCHS.FF.W.0023.071221T1232Z-071221T1530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE CHARLESTON SC
732 AM EST FRI DEC 21 2007
THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A
* FLASH FLOOD WARNING FOR...
NORTHERN CHATHAM COUNTY IN SOUTHEAST GEORGIA...
* UNTIL 1030 AM EST
* AT 730 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
VERY HEAVY RAIN OCCURRING ACROSS NORTHERN CHATHAM COUNTY. THE
HEAVY RAIN WILL CONTINUE AT LEAST THROUGH 830 AM.
* FLASH FLOODING IS EXPECTED IN AND AROUND...
GARDEN CITY...SAVANNAH...
SAVANNAH AIRPORT...POOLER...
THE OFFICIAL READING AT THE SAVANNAH INTERNATIONAL AIRPORT IS IN
EXCESS OF 5 INCHES THIS MORNING...AND RADAR CONFIRMS AMOUNTS OF 3 TO
6 INCHES OVER A WIDE PORTION OF NORTHERN CHATHAM COUNTY. THE HEAVY
RAIN IS SLOWLY MOVING SOUTHEASTWARD TOWARD THE COAST.
MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.
TO REPORT SIGNIFICANT FLOODING...PLEASE CONTACT THE NATIONAL WEATHER
SERVICE IN CHARLESTON TOLL FREE AT 1-888-383-2024.
LAT...LON 3210 8138 3223 8120 3220 8113 3213 8111
3211 8112 3210 8111 3208 8110 3207 8098
3193 8124
TIME...MOT...LOC 1232Z 180DEG 0KT 3210 8120
$$3 follow-up statements
000
WGUS72 KCHS 211304
FFSCHS
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
802 AM EST FRI DEC 21 2007
GAC051-211530-
/O.CON.KCHS.FF.W.0023.000000T0000Z-071221T1530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CHATHAM GA-
802 AM EST FRI DEC 21 2007
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1030 AM EST FOR
NORTHERN CHATHAM COUNTY...
AT 800 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE AN AREA OF HEAVY RAIN CAPABLE OF PRODUCING FLASH FLOODING
OVER THE WARNED AREA.
FLASH FLOODING IS EXPECTED IN AND AROUND BLOOMINGDALE...BURROUGHS...
GARDEN CITY...MEINHARD...MONTEITH...POOLER...PORT
WENTWORTH...SAVANNAH...WHITE BLUFF AND SAVANNAH AIRPORT.
THE VERY HEAVY RAIN THAT HAS BEEN OVER THE FAR NORTHERN PART OF THE
COUNTY IN THE VICNITY OF THE AIRPORT IS MOVING SOUTHEASTWARD...AND
FLOODING IS LIKELY IN SOME OF THE USUAL FLOOD PRONE LOCATIONS IN AND
AROUND THE CITY OF SAVANNAH.
EXCESSIVE RUNOFF FROM THESE STORMS WILL CAUSE RAPID FLOODING OF
ROADWAYS...SMALL CREEKS AND STREAMS...LOW-LYING AREAS AND DITCHES.
TO REPORT SIGNIFICANT FLOODING...PLEASE CONTACT THE NATIONAL WEATHER
SERVICE IN CHARLESTON TOLL FREE AT 1-888-383-2024 OR EMAIL YOUR
REPORTS TO CHS.SKYWARN@NOAA.GOV.
LAT...LON 3210 8138 3223 8120 3220 8113 3213 8111
3211 8112 3210 8111 3208 8110 3207 8098
3193 8124
TIME...MOT...LOC 1302Z 180DEG 0KT 3210 8120
$$000
WGUS72 KCHS 211339
FFSCHS
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
836 AM EST FRI DEC 21 2007
GAC051-211530-
/O.CON.KCHS.FF.W.0023.000000T0000Z-071221T1530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CHATHAM GA-
836 AM EST FRI DEC 21 2007
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1030 AM EST FOR
NORTHERN CHATHAM COUNTY...
AT 834 AM EST...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED MANY ROADS
IN THE NORTHERN PART OF CHATHAM COUNTY WITH SOME MINOR
FLOODING...AND SOME WITH ENOUGH FLOODING TO CLOSE THE ROADS.
THE RAIN IS SLOWLY TAPERING DOWN IN SOME LOCATIONS...BUT REMAINS
HEAVY IN THE SAVANNAH VICINITY AND WILL CONTINUE UNTIL AFTER 9AM.
FLOODING IS EXPECTED IN AND AROUND BLOOMINGDALE...BURROUGHS...GARDEN
CITY...MEINHARD...MONTEITH...POOLER...PORT WENTWORTH...SAVANNAH
...WHITE BLUFF AND SAVANNAH AIRPORT.
MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.
TO REPORT SIGNIFICANT FLOODING...PLEASE CONTACT THE NATIONAL WEATHER
SERVICE IN CHARLESTON TOLL FREE AT 1-888-383-2024 OR EMAIL YOUR
REPORTS TO CHS.SKYWARN@NOAA.GOV.
LAT...LON 3210 8138 3223 8120 3220 8113 3213 8111
3211 8112 3210 8111 3208 8110 3207 8098
3193 8124
TIME...MOT...LOC 1336Z 180DEG 0KT 3210 8120
$$000
WGUS72 KCHS 211421
FFSCHS
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
920 AM EST FRI DEC 21 2007
GAC051-211530-
/O.CON.KCHS.FF.W.0023.000000T0000Z-071221T1530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CHATHAM GA-
920 AM EST FRI DEC 21 2007
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1030 AM EST FOR
NORTHERN CHATHAM COUNTY...
AT 918 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE AN AREA OF HEAVY RAIN CAPABLE OF PRODUCING FLASH FLOODING
OVER THE WARNED AREA. THE RAIN IS GRADUALLY DIMINISHING IN
INTENSITY...BUT SEVERAL ROADS ARE LIKELY TO CONTINUE TO HAVE SOME
FLOODING THROUGH 1030 AM.
FLASH FLOODING IS EXPECTED IN AND AROUND BLOOMINGDALE...BURROUGHS...
GARDEN CITY...MEINHARD...MONTEITH...POOLER...PORT WENTWORTH...
SAVANNAH...WHITE BLUFF AND SAVANNAH AIRPORT.
MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.
TO REPORT SIGNIFICANT FLOODING...PLEASE CONTACT THE NATIONAL WEATHER
SERVICE IN CHARLESTON TOLL FREE AT 1-888-383-2024 OR EMAIL YOUR
REPORTS TO CHS.SKYWARN@NOAA.GOV.
LAT...LON 3210 8138 3223 8120 3220 8113 3213 8111
3211 8112 3210 8111 3208 8110 3207 8098
3193 8124
TIME...MOT...LOC 1420Z 180DEG 0KT 3210 8120
$$The office that day
Everything else NWS Charleston, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 21, 6:31 AM EST | Areal Flood Advisory | CHS | Chatham, Effingham | 89 min |
| Dec 21, 7:54 AM EST | Areal Flood Advisory | CHS | Effingham | 2 hr |
| Dec 21, 9:47 AM EST | Wind Advisory | CHS | 6 hr | |
| Dec 21, 10:29 AM EST | Flash Flood Warning | CHS | Chatham | 2 hr |
| Dec 21, 1:30 PM EST | High Surf Advisory | CHS | 7 hr |
Nearby
Flash Flood Warnings in Georgia, 2007Every flash flood warning in 2007
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.