Alert archive / South Carolina / Flash Flood Warnings in 2012
Flash Flood Warning 5, NWS Charleston, SC
NWS Charleston, SC issued this flash flood warning at Jun 26, 2012, 1:50 AM EDT for Charleston County, Colleton County, South Carolina. It was in force for 114 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
- Jun 26, 2012, 1:50 AM EDT (05:50 UTC)
- Expired
- Jun 26, 2012, 3:44 AM EDT
- In force
- 114 min
- Issued by
- NWS Charleston, SC
- Area
- Storm-based polygon
- Flood severity
- None
Counties Charleston County, SC, Colleton County, SC
The radar
The Charleston,SC radar (KCLX), 89 km from the middle of the area, began a volume at 05:52 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 00:00Z, 5.8 hours before the alert went out and 33 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
- 161 J/kg
- Mixed-layer CIN
- -55 J/kg
- Mixed-layer LCL
- 867 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- -64 m²/s²
- 0-3 km storm-relative helicity
- -47 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
887
WGUS52 KCHS 260550
FFWCHS
SCC019-029-260845-
/O.NEW.KCHS.FF.W.0005.120626T0550Z-120626T0845Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE CHARLESTON SC
150 AM EDT TUE JUN 26 2012
THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A
* FLASH FLOOD WARNING FOR...
SOUTHWESTERN CHARLESTON COUNTY IN SOUTHEAST SOUTH CAROLINA...
EXTREME SOUTHEASTERN COLLETON COUNTY IN SOUTHEAST SOUTH CAROLINA...
* UNTIL 445 AM EDT
* AT 147 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
VERY HEAVY RAIN OCCURRING ALONG A LINE EXTENDING FROM SULLIVANS
ISLAND TO EDISTO BEACH...OR ALONG A LINE EXTENDING FROM FORT SUMTER
TO EDISTO BEACH...MOVING NORTHWEST AT 5 MPH.
A BAND OF SHOWERS AND THUNDERSTORMS PRODUCING EXCESSIVE RAINFALL
OF UP TO 2 INCHES PER HOUR WILL PERSIST ALONG COASTAL AREAS DURING
THE OVERNIGHT. HIGH TIDE ALONG THE COAST OCCURRED IN THE PAST HOUR
AND TIDAL LEVELS WERE ALREADY ELEVATED CREATING VERY SLOW RUNOFF.
* FLASH FLOODING IS EXPECTED IN AND AROUND...
KIAWAH ISLAND...EDISTO BEACH...SEABROOK ISLAND...FOLLY BEACH...
FORT SUMTER...SULLIVANS ISLAND...ROCKVILLE...SEABROOK ISLAND...
SUCESSIONVILLE...
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 3275 7984 3275 7986 3268 7988 3260 7999
3259 8011 3254 8017 3255 8020 3247 8035
3243 8035 3245 8038 3248 8035 3247 8039
3251 8043 3265 8012 3278 7999 3284 7976
3280 7973
$$2 follow-up statements
488
WGUS72 KCHS 260707
FFSCHS
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
307 AM EDT TUE JUN 26 2012
SCC029-260714-
/O.CAN.KCHS.FF.W.0005.000000T0000Z-120626T0845Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
COLLETON SC-
307 AM EDT TUE JUN 26 2012
...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR EXTREME
SOUTHEASTERN COLLETON COUNTY...
LAT...LON 3264 7998 3266 8006 3268 8005 3278 7999
3281 7985 3279 7976 3275 7984 3275 7986
3268 7988
$$
SCC019-260845-
/O.CON.KCHS.FF.W.0005.000000T0000Z-120626T0845Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CHARLESTON SC-
307 AM EDT TUE JUN 26 2012
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 445 AM EDT FOR
CENTRAL CHARLESTON COUNTY...
AT 305 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE AN AREA OF HEAVY RAIN CAPABLE OF PRODUCING FLASH FLOODING.
THESE RAINS WERE LOCATED ALONG A LINE EXTENDING FROM MOUNT PLEASANT
TO JAMES ISLAND COUNTY PARK...OR ALONG A LINE EXTENDING FROM MOUNT
PLEASANT TO 9 MILES SOUTHWEST OF DOWNTOWN CHARLESTON...MOVING
NORTHWEST AT 5 MPH. THE OVERALL INTENSITY OF THE RAIN HAS BEEN
SLOWLY DIMINISHING...BUT STANDING WATER IS LIKELY.
FLASH FLOODING IS EXPECTED IN AND AROUND DOWNTOWN CHARLESTON...FOLLY
BEACH...FORT JOHNSON...FORT SUMTER...JAMES ISLAND...JAMES ISLAND
COUNTY PARK...AND SULLIVANS ISLAND.
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 3264 7998 3266 8006 3268 8005 3278 7999
3281 7985 3279 7976 3275 7984 3275 7986
3268 7988
$$019
WGUS72 KCHS 260744
FFSCHS
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
344 AM EDT TUE JUN 26 2012
SCC019-260753-
/O.CAN.KCHS.FF.W.0005.000000T0000Z-120626T0845Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CHARLESTON SC-
344 AM EDT TUE JUN 26 2012
...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR CENTRAL CHARLESTON
COUNTY...
HEAVY RAIN QUICKLY DIMINISHED OVERNIGHT. PONDING WATER MAY PERSIST
ALONG COASTAL CHARLESTON COUNTY THROUGH DAYBREAK.
STAY TUNED TO NOAA WEATHER RADIO ALL-HAZARDS OR LOCAL MEDIA FOR THE
LATEST WEATHER INFORMATION.
LAT...LON 3264 7998 3266 8006 3268 8005 3278 7999
3281 7985 3279 7976 3275 7984 3275 7986
3268 7988
$$The office that day
Everything else NWS Charleston, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 26, 12:24 AM EDT | Areal Flood Advisory | CHS | Berkeley, Charleston, Colleton | 3 hr |
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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.