Alert archive / South Carolina / Flash Flood Warnings in 2012
Flash Flood Warning 6, NWS Charleston, SC
NWS Charleston, SC issued this flash flood warning at Jul 11, 2012, 1:10 PM EDT for Berkeley County, Charleston County, South Carolina. It was in force for 2 hr. 2 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
- Jul 11, 2012, 1:10 PM EDT (17:10 UTC)
- Expired
- Jul 11, 2012, 3:15 PM EDT
- In force
- 2 hr
- Issued by
- NWS Charleston, SC
- Area
- Storm-based polygon
- Flood severity
- None
Counties Berkeley County, SC, Charleston County, SC
The radar
The Charleston,SC radar (KCLX), 106 km from the middle of the area, began a volume at 17:10 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 |
|---|---|---|---|
| Jul 11, 2:30 PM EDT | FLASH FLOOD | 1 Ese Charleston, SC | TABBULI GRILL ON NORTH MARKET STREET FLOODED WITH SEVERAL INCHES OF WATER INSIDE THE BUILDING. NUMEROUS SIDE STREETS NEAR THE MARKET WERE FLOODED WITH A HALF FOOT OF WATER. |
| Jul 11, 2:30 PM EDT | FLASH FLOOD | 1 Ne Charleston, SC | FIRE DEPARTMENT REPORTED NEARLY 6 INCHES OF RAIN ALONG EAST BAY STREET AND CALHOUN STREET. STREET WERE NOT OFFICIALLY CLOSED BUT WERE IMPASSABLE IN SPOTS. |
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, 5.2 hours before the alert went out and 15 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
- 2022 J/kg
- Mixed-layer CIN
- -51 J/kg
- Mixed-layer LCL
- 802 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 54 m²/s²
- 0-3 km storm-relative helicity
- 54 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
991
WGUS52 KCHS 111710
FFWCHS
SCC015-019-111915-
/O.NEW.KCHS.FF.W.0006.120711T1710Z-120711T1915Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE CHARLESTON SC
110 PM EDT WED JUL 11 2012
THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A
* FLASH FLOOD WARNING FOR...
EXTREME SOUTH CENTRAL BERKELEY COUNTY IN SOUTHEAST SOUTH
CAROLINA...
CENTRAL CHARLESTON COUNTY IN SOUTHEAST SOUTH CAROLINA...
* UNTIL 315 PM EDT
* AT 106 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
VERY HEAVY RAIN OCCURRING NEAR DOWNTOWN CHARLESTON...OR ABOUT OVER
DOWNTOWN CHARLESTON...MOVING NORTHEAST AT 5 MPH.
TORRENTIAL RAINFALL WILL PRODUCE FLASH FLOODING IN DOWNTOWN
CHARLESTON AND SURROUNDING COMMUNITIES THROUGH 315 PM.
* FLASH FLOODING IS EXPECTED IN AND AROUND...
DOWNTOWN CHARLESTON...CHARLES TOWNE LANDING...MOUNT PLEASANT...
NORTH CHARLESTON...CHARLESTON NAVAL COMPLEX...DANIEL ISLAND...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
HIGH TIDE WILL INHIBIT RUNOFF OF HEAVY RAIN...FLOODING AREAS OF POOR
DRAINAGE IN DOWNTOWN CHARLESTON. AREAS MOST PRONE TO FLOODING INCLUDE
THE MARKET...CROSSTOWN...EAST BAY STREET AND MORRISON DRIVE.
TO REPORT FLOODING...CONTACT THE NATIONAL WEATHER SERVICE IN
CHARLESTON TOLL FREE AT 1-888-383-2024.
&&
LAT...LON 3276 7988 3278 7990 3276 7991 3275 7991
3272 7998 3285 8005 3289 7993 3278 7985
$$3 follow-up statements
719
WGUS72 KCHS 111753
FFSCHS
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
153 PM EDT WED JUL 11 2012
SCC015-019-111915-
/O.CON.KCHS.FF.W.0006.000000T0000Z-120711T1915Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CHARLESTON SC-BERKELEY SC-
153 PM EDT WED JUL 11 2012
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 315 PM EDT FOR
EXTREME SOUTH CENTRAL BERKELEY AND CENTRAL CHARLESTON COUNTIES...
AT 150 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE AN AREA OF HEAVY RAIN CAPABLE OF PRODUCING FLASH FLOODING.
THIS STORM WAS LOCATED NEAR DOWNTOWN CHARLESTON...MOVING NORTHEAST
AT 5 MPH.
NATIONAL WEATHER SERVICE DOPPLER RADAR ESTIMATED THAT AROUND 2
INCHES OF RAIN HAD FALLEN THUS FAR ACROSS DOWNTOWN CHARLESTON.
RAINFALL RATES HAD TEMPORARILY DIMINISHED...BUT ADDITIONAL
TORRENTIAL RAINFALL WILL MOVE OVER THE CITY THROUGH 315 PM. THIS
ADDITIONAL RAINFALL WILL PRODUCE FLASH FLOODING.
FLASH FLOODING IS EXPECTED IN AND AROUND CHARLES TOWNE LANDING...
CHARLESTON NAVAL COMPLEX...DANIEL ISLAND...DOWNTOWN CHARLESTON...
JAMES ISLAND COUNTY PARK...MOUNT PLEASANT...NORTH CHARLESTON AND WEST
ASHLEY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
HIGH TIDE WILL INHIBIT RUNOFF OF HEAVY RAIN...FLOODING AREAS OF POOR
DRAINAGE IN DOWNTOWN CHARLESTON. AREAS MOST PRONE TO FLOODING INCLUDE
THE MARKET...CROSSTOWN...EAST BAY STREET AND MORRISON DRIVE.
TO REPORT SIGNIFICANT FLOODING...PLEASE CONTACT THE NATIONAL WEATHER
SERVICE IN CHARLESTON TOLL FREE AT 1-888-383-2024 OR EMAIL YOUR
REPORTS TO CHS.SKYWARN@NOAA.GOV. REPORTS CAN ALSO BE SENT THROUGH
TWITTER USING #WXREPORT.
&&
LAT...LON 3276 7988 3278 7990 3276 7991 3275 7991
3272 7998 3285 8005 3289 7993 3278 7985
$$185
WGUS72 KCHS 111840
FFSCHS
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
240 PM EDT WED JUL 11 2012
SCC015-019-111915-
/O.CON.KCHS.FF.W.0006.000000T0000Z-120711T1915Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CHARLESTON SC-BERKELEY SC-
240 PM EDT WED JUL 11 2012
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 315 PM EDT FOR
EXTREME SOUTH CENTRAL BERKELEY AND CENTRAL CHARLESTON COUNTIES...
AT 236 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE AN AREA OF HEAVY RAIN CAPABLE OF PRODUCING FLASH FLOODING.
THIS STORM WAS LOCATED NEAR DOWNTOWN CHARLESTON...MOVING NORTHEAST AT
5 MPH.
DOPPLER RADAR ESTIMATES THAT 1.5 TO 2.5 INCHES OF RAIN HAD FALLEN
THUS FAR ACROSS DOWNTOWN CHARLESTON AND SURROUNDING AREAS. STANDING
WATER WAS REPORTED ON SEVERAL DOWNTOWN STREETS. RAINFALL RATES HAD
ONCE AGAIN DIMINISHED...BUT ADDITIONAL HEAVY RAIN IS EXPECTED IN THE
WARNING AREA BY 315 PM.
FLASH FLOODING IS EXPECTED IN AND AROUND CHARLES TOWNE LANDING...
CHARLESTON NAVAL COMPLEX...DANIEL ISLAND...DOWNTOWN CHARLESTON...
JAMES ISLAND COUNTY PARK...MOUNT PLEASANT...NORTH CHARLESTON AND WEST
ASHLEY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
HIGH TIDE WILL INHIBIT RUNOFF OF HEAVY RAIN...FLOODING AREAS OF POOR
DRAINAGE IN DOWNTOWN CHARLESTON. AREAS MOST PRONE TO FLOODING INCLUDE
THE MARKET...CROSSTOWN...EAST BAY STREET AND MORRISON DRIVE.
&&
LAT...LON 3276 7988 3278 7990 3276 7991 3275 7991
3272 7998 3285 8005 3289 7993 3278 7985
$$323
WGUS72 KCHS 111909
FFSCHS
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
309 PM EDT WED JUL 11 2012
SCC015-019-111918-
/O.EXP.KCHS.FF.W.0006.000000T0000Z-120711T1915Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CHARLESTON SC-BERKELEY SC-
309 PM EDT WED JUL 11 2012
...THE FLASH FLOOD WARNING WILL EXPIRE AT 315 PM EDT FOR FOR EXTREME
SOUTH CENTRAL BERKELEY AND CENTRAL CHARLESTON COUNTIES...
ALTHOUGH HEAVY RAIN AND THE THREAT FOR SIGNIFICANT FLOODING HAS
ENDED...STANDING WATER WILL REMAIN ON SOME ROADS AND DRAINAGE
SYSTEMS AND CULVERTS WILL REMAIN FULL.
LAT...LON 3276 7988 3278 7990 3276 7991 3275 7991
3272 7998 3285 8005 3289 7993 3278 7985
$$The office that day
Everything else NWS Charleston, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 10, 8:18 PM EDT | Special Weather Statement | CHS | Colleton | 27 min |
| Jul 10, 9:21 PM EDT | Special Weather Statement | CHS | Allendale | 24 min |
| Jul 10, 9:36 PM EDT | Special Weather Statement | CHS | Allendale | 24 min |
| Jul 11, 12:31 PM EDT | Severe Thunderstorm Warning | CHS | Charleston | 59 min |
| Jul 11, 12:51 PM EDT | Special Weather Statement | CHS | Charleston | 24 min |
| Jul 11, 12:58 PM EDT | Severe Thunderstorm Warning | CHS | Berkeley, Charleston | 62 min |
| Jul 11, 1:03 PM EDT | Areal Flood Advisory | CHS | Berkeley, Charleston | 87 min |
| Jul 11, 1:21 PM EDT | Special Weather Statement | CHS | Beaufort | 39 min |
| Jul 11, 2:09 PM EDT | Severe Thunderstorm Warning | CHS | Berkeley | 56 min |
| Jul 11, 2:14 PM EDT | Special Weather Statement | CHS | Beaufort, Jasper | 31 min |
| Jul 11, 2:16 PM EDT | Special Weather Statement | CHS | Jasper | 29 min |
| Jul 11, 2:27 PM EDT | Special Weather Statement | CHS | Charleston | 33 min |
| Jul 11, 2:48 PM EDT | Special Weather Statement | CHS | Hampton | 27 min |
| Jul 11, 3:18 PM EDT | Special Weather Statement | CHS | Berkeley | 42 min |
| Jul 11, 3:43 PM EDT | Severe Thunderstorm Warning | CHS | Charleston, Colleton, Dorchester | 51 min |
| Jul 11, 3:53 PM EDT | Special Weather Statement | CHS | Colleton | 52 min |
| Jul 11, 3:59 PM EDT | Special Weather Statement | CHS | Hampton | 31 min |
| Jul 11, 4:05 PM EDT | Special Weather Statement | CHS | Colleton | 40 min |
| Jul 11, 4:14 PM EDT | Special Weather Statement | CHS | Dorchester | 46 min |
| Jul 11, 4:17 PM EDT | Severe Thunderstorm Warning | CHS | Colleton | 58 min |
| Jul 11, 4:46 PM EDT | Severe Thunderstorm Warning | CHS | Berkeley, Colleton, Dorchester | 41 min |
| Jul 11, 4:53 PM EDT | Severe Thunderstorm Warning | CHS | Allendale, Hampton | 67 min |
Nearby
Flash Flood Warnings in South Carolina, 2012Every flash flood warning in 2012
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.