Alert archive / South Carolina / Flash Flood Warnings in 2011
Flash Flood Warning 1, NWS Charleston, SC
NWS Charleston, SC issued this flash flood warning at Jun 29, 2011, 6:22 PM EDT for Jasper County, South Carolina; Chatham County, Georgia. It was in force for 3 hr. 15 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
- Jun 29, 2011, 6:22 PM EDT (22:22 UTC)
- Expired
- Jun 29, 2011, 9:15 PM EDT
- In force
- 3 hr
- Issued by
- NWS Charleston, SC
- Area
- Storm-based polygon
- Flood severity
- None
Counties Chatham County, GA, Jasper County, SC
The radar
The Charleston,SC radar (KCLX), 70 km from the middle of the area, began a volume at 22:23 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 |
|---|---|---|---|
| Jun 29, 6:37 PM EDT | HEAVY RAIN 3.24 | Savannah Airport, GA | 3.24 INCHES AND STILL FALLING. |
| Jun 29, 6:55 PM EDT | HEAVY RAIN 3 | Tybee Island, GA | SEVERAL YARDS FLOODED ON TYBEE ISLAND |
| Jun 29, 7:06 PM EDT | FLASH FLOOD | 1 Ssw Savannah Historic, GA | CAR STALLED AT 32ND AND JEFFERSON DUE TO HIGH WATER. |
| Jun 29, 7:06 PM EDT | FLASH FLOOD | 1 Sw Savannah Historic, GA | VEHICLE STALLED AT MLK AND EMERALD DRIVE DUE TO HIGH WATER. |
| Jun 29, 7:06 PM EDT | FLASH FLOOD | 2 W Savannah Historic D, GA | 2 VEHICLES STALLED AT INTERSTATE 16 AND AUGUSTA ROAD DUE TO HIGH WATER. |
| Jun 29, 7:10 PM EDT | FLASH FLOOD | 1 Nnw Savannah, GA | FLOODED INTERSECTION E. HENRY LANE AND EAST BROAD. |
| Jun 29, 7:10 PM EDT | FLASH FLOOD | 1 S Savannah Historic D, GA | FLOODED INTERSECTION AT PRICE AND HENRY. |
| Jun 29, 7:10 PM EDT | FLASH FLOOD | 1 Wnw Savannah, GA | FLOODED INTERSECTION DRAYTON AND 36TH. |
| Jun 29, 7:10 PM EDT | FLASH FLOOD | 1 Wnw Savannah Historic, GA | FLOODED INTERSECTION AT LATHROPE AND AUGUSTA. |
| Jun 29, 7:10 PM EDT | FLASH FLOOD | 1 W Savannah, GA | FLOODED INTERSECTION AT VICTORY AND MLK JR. |
| Jun 29, 7:10 PM EDT | FLASH FLOOD | Savannah, GA | FLOODED INTERSECTION AT VICTORY AND LIVE OAK. |
| Jun 29, 7:10 PM EDT | FLASH FLOOD | Savannah Historic Distr, GA | FLOODED INTERSECTION AT EAST LIBERTY AND EAST BROAD. |
| Jun 29, 7:45 PM EDT | FLASH FLOOD | 1 Nnw Savannah, GA | ANDERSON STREET CLOSED BETWEEN ATLANTIC AND PAULSEN DUE TO FLOODING. |
| Jun 29, 8:01 PM EDT | FLASH FLOOD | 2 Wnw Savannah Historic, GA | I-516 WESTBOUND AT EXIT 7 ONE LANE CLOSED DUE TO FLOODING. |
| Jun 29, 9:00 PM EDT | HEAVY RAIN 4.9 | Savannah Airport, GA | STORM TOTAL FOR JUNE 29TH HEAVY RAIN. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Charleston AFB, SC (KCHS), launched 12:00Z, 10.4 hours before the alert went out and 133 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
- 659 J/kg
- Mixed-layer CIN
- -23 J/kg
- Mixed-layer LCL
- 823 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 37 m²/s²
- 0-3 km storm-relative helicity
- 43 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
181
WGUS52 KCHS 292222
FFWCHS
GAC051-SCC053-300115-
/O.NEW.KCHS.FF.W.0001.110629T2222Z-110630T0115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE CHARLESTON SC
622 PM EDT WED JUN 29 2011
THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A
* FLASH FLOOD WARNING FOR...
NORTHERN CHATHAM COUNTY IN SOUTHEAST GEORGIA...
SOUTH CENTRAL JASPER COUNTY IN SOUTHEAST SOUTH CAROLINA...
* UNTIL 915 PM EDT
* AT 618 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
VERY HEAVY RAIN OCCURRING ALONG A LINE FROM PORT WENTWORTH TO
DOWNTOWN SAVANNAH TO WILMINGTON ISLAND...NEARLY STATIONARY.
RADAR ESTIMATES THAT 2 TO 3 INCHES OF RAIN HAS FALLEN ACROSS THE
WARNING AREA. AS OF 615 PM...THE SAVANNAH AIRPORT HAD RECEIVED
2.50 INCHES OF RAINFALL. WITH THE APPROACH OF HIGH TIDE AT 730 PM
THE RISK FOR SIGNIFICANT FLOODING IN DOWNTOWN SAVANNAH WILL CONTINUE
TO INCREASE.
* FLASH FLOODING IS EXPECTED IN AND AROUND...
SAVANNAH HISTORIC DISTRICT...HUTCHINSON ISLAND...SAVANNAH...PORT
WENTWORTH...POOLER...TYBEE ISLAND...THUNDERBOLT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
AVOID DRIVING INTO WATER ON THE ROAD. THE WATER IS USUALLY DEEPER
THAN IT APPEARS AND THE ROAD MAY BE WASHED OUT. ONLY ONE FOOT OF
WATER WILL STALL A VEHICLE AND LESS THAN TWO FEET OF WATER CAN FLOAT
AND CARRY AWAY A VEHICLE. FLOODING IS THE NUMBER ONE WEATHER-RELATED
CAUSE OF DEATH IN THE UNITED STATES. WHEN ENCOUNTERING FLOODED ROADS
MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.
TO REPORT FLOODING...CONTACT THE NATIONAL WEATHER SERVICE IN
CHARLESTON TOLL FREE AT 1-888-383-2024.
&&
LAT...LON 3213 8134 3223 8119 3207 8088 3205 8089
3203 8087 3203 8084 3202 8083 3200 8083
3197 8085 3194 8091 3191 8093 3188 8097
$$4 follow-up statements
321
WGUS72 KCHS 292248
FFSCHS
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
648 PM EDT WED JUN 29 2011
GAC051-SCC053-300115-
/O.CON.KCHS.FF.W.0001.000000T0000Z-110630T0115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
JASPER SC-CHATHAM GA-
648 PM EDT WED JUN 29 2011
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 915 PM EDT FOR
NORTHERN CHATHAM AND SOUTH CENTRAL JASPER COUNTIES...
AT 641 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE AN AREA OF HEAVY RAIN EXTENDING FROM EDEN TO POOLER TO
SAVANNAH AND TYBEE ISLAND...MOVING SLOWLY SOUTHEAST AT AROUND 10 MPH.
RADAR INDICATES 3 TO 4 INCHES OF RAINFALL HAS OCCURRED ALONG A LINE
FROM THE SAVANNAH AIRPORT TO THE SAVANNAH HISTORIC DISTRICT AND FORT
PULASKI. AS OF 630 PM...THE SAVANNAH AIRPORT HAD RECEIVED 3.24
INCHES OF RAINFALL. ALTHOUGH A BRIEF LULL IN THE HEAVIEST RAIN MAY
OCCUR OVER THE SAVANNAH HISTORIC DISTRICT...MORE SHOWERS AND
THUNDERSTORMS ARE DEVELOPING NORTHWEST OF THE WARNING AREA AND MAY
MOVE INTO THE SAME LOCATIONS THROUGH 8 PM.
HIGH TIDE WILL OCCUR AT 730 PM THIS EVENING. THIS WILL SLOW THE
DRAINAGE OF RUNOFF FROM STORM DRAINS...POTENTIALLY WORSENING STREET
FLOODING THIS EVENING.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
AVOID DRIVING INTO WATER ON THE ROAD. THE WATER IS USUALLY DEEPER
THAN IT APPEARS AND THE ROAD MAY BE WASHED OUT. ONLY ONE FOOT OF
WATER WILL STALL A VEHICLE AND LESS THAN TWO FEET OF WATER CAN FLOAT
AND CARRY AWAY A VEHICLE. FLOODING IS THE NUMBER ONE WEATHER-RELATED
CAUSE OF DEATH IN THE UNITED STATES. 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. REPORTS CAN ALSO BE SENT THROUGH
TWITTER USING #WXREPORT.
&&
LAT...LON 3213 8134 3223 8119 3207 8088 3205 8089
3203 8087 3203 8084 3202 8083 3200 8083
3197 8085 3194 8091 3191 8093 3188 8097
$$754
WGUS72 KCHS 292346
FFSCHS
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
746 PM EDT WED JUN 29 2011
GAC051-SCC053-300115-
/O.CON.KCHS.FF.W.0001.000000T0000Z-110630T0115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
JASPER SC-CHATHAM GA-
746 PM EDT WED JUN 29 2011
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 915 PM EDT FOR
NORTHERN CHATHAM AND SOUTH CENTRAL JASPER COUNTIES...
AT 740 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE TORRENTIAL RAINFALL OCCURRING ACROSS AN AREA FROM PEMBROKE
TO POOLER TO DOWNTOWN SAVANNAH AND TYBEE ISLAND. THIS RAINFALL IS
MOVING SLOWLY SOUTHEAST AT AROUND 10 MPH.
DOPPLER RADAR AND RAIN GAGE OBSERVATIONS INDICATE STORM TOTAL
RAINFALL AMOUNTS OF 3 TO 5 INCHES HAVE ALREADY FALLEN ACROSS
PORTIONS OF WHITEMARSH ISLAND AND TYBEE ISLAND. AREAS FROM POOLER
SOUTHEAST TO GARDEN CITY AND DOWNTOWN SAVANNAH HAVE RECEIVED BETWEEN
2 AND 4 INCHES OF RAIN. TYBEE ISLAND POLICE REPORTED THAT BUTLER
ROAD HAD BEEN CLOSED DUE TO FLOODING. IN ADDITION...SAVANNAH
EMERGENCY OFFICIALS REPORTED NUMEROUS ROADS FLOODED IN DOWNTOWN
SAVANNAH.
ONGOING HIGH TIDES WILL WORSEN FLASH FLOODING CONCERNS THIS EVENING.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
AVOID DRIVING INTO WATER ON THE ROAD. THE WATER IS USUALLY DEEPER
THAN IT APPEARS AND THE ROAD MAY BE WASHED OUT. ONLY ONE FOOT OF
WATER WILL STALL A VEHICLE AND LESS THAN TWO FEET OF WATER CAN FLOAT
AND CARRY AWAY A VEHICLE.
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 3213 8134 3223 8119 3207 8088 3205 8089
3203 8087 3203 8084 3202 8083 3200 8083
3197 8085 3194 8091 3191 8093 3188 8097
$$849
WGUS72 KCHS 300038
FFSCHS
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
838 PM EDT WED JUN 29 2011
GAC051-SCC053-300115-
/O.CON.KCHS.FF.W.0001.000000T0000Z-110630T0115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
JASPER SC-CHATHAM GA-
838 PM EDT WED JUN 29 2011
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 915 PM EDT FOR
NORTHERN CHATHAM AND SOUTH CENTRAL JASPER COUNTIES...
AT 831 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THE
HEAVIEST RAINFALL HAD SHIFTED SOUTH OF THE WARNING AREA. ADDITIONAL
HEAVY RAIN IS NOT EXPECTED THROUGH 915 PM. HOWEVER...DUE TO THE
PASSING HIGH TIDE AND A LARGE AMOUNT OF STANDING WATER YET TO
DRAIN...ROADS IN SAVANNAH...WHITEMARSH ISLAND...TYBEE ISLAND AND
SURROUNDING AREAS WILL LIKELY REMAIN TREACHEROUS FOR QUITE SOME TIME.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
WATER DEPTH IS NEARLY IMPOSSIBLE TO DETERMINE AT NIGHT. DO NOT
ATTEMPT TO CROSS WATER ON THE ROADWAY EVEN IF IT APPEARS SHALLOW.
FIND AN ALTERNATE ROUTE. A SHORT DELAY IN YOUR TRAVEL PLANS IS BETTER
THAN LOSING YOUR CAR...OR YOUR LIFE.
&&
LAT...LON 3213 8134 3223 8119 3207 8088 3205 8089
3203 8087 3203 8084 3202 8083 3200 8083
3197 8085 3194 8091 3191 8093 3188 8097
$$977
WGUS72 KCHS 300108
FFSCHS
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
908 PM EDT WED JUN 29 2011
GAC051-SCC053-300118-
/O.EXP.KCHS.FF.W.0001.000000T0000Z-110630T0115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
JASPER SC-CHATHAM GA-
908 PM EDT WED JUN 29 2011
...THE FLASH FLOOD WARNING WILL EXPIRE AT 915 PM EDT FOR FOR NORTHERN
CHATHAM AND SOUTH CENTRAL JASPER COUNTIES...
ALTHOUGH THE SIGNIFICANT FLOODING HAS ENDED...DRAINAGE SYSTEMS AND
CULVERTS WILL REMAIN FULL. PONDING WATER WILL PERSIST IN LOW-LYING
AREAS AND MAY POSE A HAZARD TO MOTORISTS. STAY TUNED TO NOAA WEATHER
RADIO ALL-HAZARDS FOR THE LATEST WEATHER INFORMATION.
LAT...LON 3213 8134 3223 8119 3207 8088 3205 8089
3203 8087 3203 8084 3202 8083 3200 8083
3197 8085 3194 8091 3191 8093 3188 8097
$$The office that day
Everything else NWS Charleston, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 29, 4:06 PM EDT | Special Weather Statement | CHS | Beaufort | 39 min |
| Jun 29, 5:07 PM EDT | Special Weather Statement | CHS | Beaufort | 38 min |
| Jun 29, 5:58 PM EDT | Areal Flood Advisory | CHS | Jasper | 3 hr |
| Jun 29, 4:18 PM EDT | Special Weather Statement | CHS | McIntosh | 27 min |
| Jun 29, 5:31 PM EDT | Special Weather Statement | CHS | Chatham | 44 min |
| Jun 29, 5:47 PM EDT | Special Marine Warning | CHS | 118 min | |
| Jun 29, 5:51 PM EDT | Special Marine Warning | CHS | 54 min | |
| Jun 29, 6:26 PM EDT | Special Marine Warning | CHS | 2 hr | |
| Jun 29, 7:19 PM EDT | Special Weather Statement | CHS | Bryan | 41 min |
| Jun 29, 7:26 PM EDT | Special Marine Warning | CHS | 2 hr | |
| Jun 29, 7:54 PM EDT | Special Weather Statement | CHS | Bryan, Chatham, Liberty, Long | 66 min |
Nearby
Flash Flood Warnings in South Carolina, 2011Flash Flood Warnings in Georgia, 2011Every flash flood warning in 2011
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.