Alert archive / South Carolina / Flash Flood Warnings in 2014
Flash Flood Warning 2, NWS Charleston, SC
NWS Charleston, SC issued this flash flood warning at Apr 18, 2014, 11:27 PM EDT for Berkeley County, Charleston County, South Carolina. It was in force for 3 hr. 6 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
- Apr 18, 2014, 11:27 PM EDT (03:27 UTC)
- Expired
- Apr 19, 2014, 2:15 AM EDT
- In force
- 3 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), 125 km from the middle of the area, began a volume at 03:31 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 |
|---|---|---|---|
| Apr 18, 11:38 PM EDT | FLASH FLOOD | Downtown Charleston, SC | THE FOLLOWING ROADS ARE CLOSED IN DOWNTOWN CHARLESTON... AREA BOUNDED BY CALHOUN... ASHLEY... RUTLEDGE... BENNETT AND GADSEN STREETS. CALHOUN STREET FROM OGIER TO RUTLEDGE. OGIER STREET FROM CALHOUN TO VANDERHOURST. BOGARD STREET FROM THE CROSSTOWN TO PRESIDEN |
| Apr 18, 11:57 PM EDT | HEAVY RAIN 2.56 | 3 Ne Archdale, SC | |
| Apr 19, 1:36 AM EDT | HEAVY RAIN 2.71 | Downtown Charleston, SC | |
| Apr 19, 1:43 AM EDT | HEAVY RAIN 2.37 | Charleston Airport, SC | |
| Apr 19, 1:44 AM EDT | HEAVY RAIN 2.9 | Charleston, SC | |
| Apr 19, 1:59 AM EDT | FLASH FLOOD | Downtown Charleston, SC | NUMEROUS ROADS REMAIN CLOSED THROUGH THE DOWNTOWN CHARLESTON AREA. FLASH FLOODING IS STILL IN PROGRESS AS HEAVY RAIN FALLS. |
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 00:00Z, 3.5 hours before the alert went out and 24 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
- 433 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- 384 m²/s²
- 0-3 km storm-relative helicity
- 810 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
456
WGUS52 KCHS 190327
FFWCHS
SCC015-019-190615-
/O.NEW.KCHS.FF.W.0002.140419T0327Z-140419T0615Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE CHARLESTON SC
1127 PM EDT FRI APR 18 2014
THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A
* FLASH FLOOD WARNING FOR...
BERKELEY COUNTY IN SOUTHEAST SOUTH CAROLINA...
EASTERN CHARLESTON COUNTY IN SOUTHEAST SOUTH CAROLINA...
* UNTIL 215 AM EDT
* AT 1116 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A PERSISTENT BAND OF MODERATE TO HEAVY RAIN PUSHING ONSHORE INTO
AREAS ALONG AND EAST OF INTERSTATE 26...INCLUDING DOWNTOWN
CHARLESTON...MOVING NORTH AT 40 MPH.
FLASH FLOODING HAS ALREADY CLOSED SEVERAL ROADS IN DOWNTOWN
CHARLESTON. RAINFALL RATES OCCASIONALLY EXCEEDING 1 TO 2 INCHES
WILL PRODUCE ADDITIONAL FLASH FLOODING ACROSS THE WARNED AREA.
* FLASH FLOODING IS EXPECTED IN AND AROUND...
CHARLESTON...NORTH CHARLESTON...MOUNT PLEASANT...GOOSE
CREEK...SULLIVANS ISLAND...ISLE OF PALMS...MONCKS CORNER...ST
STEPHEN...JAMESTOWN AND MCLELLANVILLE.
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.
HIGH TIDE WILL INHIBIT RUNOFF OF HEAVY RAIN...PRODUCING FLASH
FLOODING AND INUNDATING SOME ROADS IN DOWNTOWN CHARLESTON. AREAS
MOST PRONE TO FLOODING INCLUDE THE MARKET...CROSSTOWN...EAST BAY
STREET AND MORRISON DRIVE.
&&
LAT...LON 3300 7936 3301 7956 3295 7961 3294 7961
3296 7957 3290 7958 3275 7984 3278 7991
3277 7992 3276 7987 3267 7990 3258 8013
3293 8008 3345 8019 3350 8013 3351 8000
3332 7974 3313 7927
$$2 follow-up statements
855
WGUS72 KCHS 190424
FFSCHS
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
1224 AM EDT SAT APR 19 2014
SCC015-019-190615-
/O.CON.KCHS.FF.W.0002.000000T0000Z-140419T0615Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CHARLESTON SC-BERKELEY SC-
1224 AM EDT SAT APR 19 2014
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 215 AM EDT FOR
BERKELEY AND EASTERN CHARLESTON COUNTIES...
AT 1218 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A PERSISTENT BAND OF MODERATE TO HEAVY RAIN PUSHING ONSHORE
INTO AREAS ALONG AND EAST OF INTERSTATE 26...INCLUDING DOWNTOWN
CHARLESTON....MOVING NORTH AT 40 MPH.
SEVERAL ROADS IN DOWNTOWN CHARLESTON REMAIN CLOSED DUE TO FLASH
FLOODING. RAINFALL RATES OCCASIONALLY EXCEEDING 1 TO 2 INCHES WILL
PRODUCE ADDITIONAL FLASH FLOODING ACROSS THE WARNED AREA.
FLASH FLOODING IS EXPECTED IN AND AROUND...
CHARLESTON...NORTH CHARLESTON...MOUNT PLEASANT...GOOSE
CREEK...SULLIVANS ISLAND...ISLE OF PALMS...ST STEPHEN...
STEPHEN...JAMESTOWN AND MCLELLANVILLE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
WATER DEPTH IS NEARLY IMPOSSIBLE TO DETERMINE AT NIGHT. DO NOT
ATTEMPT TO CROSS WATER ON THE ROADWAY EVEN IF IT APPEARS SHALLOW.
FIND AN ALTERNATE ROUTE. A SHORT DELAY IN YOUR TRAVEL PLANS IS BETTER
THAN LOSING YOUR CAR...OR YOUR LIFE.
HIGH TIDE WILL CONTINUE TO INHIBIT RUNOFF OF HEAVY RAIN...PRODUCING
FLASH FLOODING IN DOWNTOWN CHARLESTON.
&&
LAT...LON 3300 7936 3301 7956 3295 7961 3294 7961
3296 7957 3290 7958 3275 7984 3278 7991
3277 7992 3276 7987 3267 7990 3258 8013
3293 8008 3345 8019 3350 8013 3351 8000
3332 7974 3313 7927
$$192
WGUS72 KCHS 190505
FFSCHS
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
105 AM EDT SAT APR 19 2014
SCC015-019-190615-
/O.CON.KCHS.FF.W.0002.000000T0000Z-140419T0615Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CHARLESTON SC-BERKELEY SC-
105 AM EDT SAT APR 19 2014
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 215 AM EDT FOR
BERKELEY AND EASTERN CHARLESTON COUNTIES...
AT 104 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A PERSISTENT BAND OF MODERATE TO HEAVY RAIN PUSHING ONSHORE
INTO AREAS ALONG AND EAST OF INTERSTATE 26...INCLUDING DOWNTOWN
CHARLESTON...MOVING NORTH AT 40 MPH.
MANY AREAS IN DOWNTOWN CHARLESTON REMAIN CLOSED DUE TO FLASH
FLOODING. RAINFALL RATES OCCASIONALLY EXCEEDING 1 TO 2 INCHES WILL
PRODUCE ADDITIONAL FLASH FLOODING ACROSS THE WARNED AREA.
FLASH FLOODING IS EXPECTED IN AND AROUND...
CHARLESTON...NORTH CHARLESTON...MOUNT PLEASANT...GOOSE
CREEK...SULLIVANS ISLAND...ISLE OF PALMS...ST STEPHEN...
STEPHEN...JAMESTOWN AND MCCLELLANVILLE.
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.
HIGH TIDE WILL CONTINUE TO INHIBIT RUNOFF OF HEAVY RAIN...PRODUCING
FLASH FLOODING IN DOWNTOWN CHARLESTON.
&&
LAT...LON 3300 7936 3301 7956 3295 7961 3294 7961
3296 7957 3290 7958 3275 7984 3278 7991
3277 7992 3276 7987 3267 7990 3258 8013
3293 8008 3345 8019 3350 8013 3351 8000
3332 7974 3313 7927
$$The office that day
Everything else NWS Charleston, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 18, 8:41 PM EDT | Special Marine Warning | CHS | 2 hr | |
| Apr 18, 9:38 PM EDT | Areal Flood Advisory | CHS | Berkeley, Colleton, Dorchester | 3 hr |
| Apr 18, 9:50 PM EDT | Special Marine Warning | CHS | 115 min | |
| Apr 18, 10:42 PM EDT | Special Marine Warning | CHS | 2 hr | |
| Apr 18, 11:47 PM EDT | Special Marine Warning | CHS | 118 min | |
| Apr 19, 2:05 AM EDT | Flash Flood Warning | CHS | Berkeley, Charleston | 4 hr |
| Apr 19, 3:57 AM EDT | Gale Watch | CHS | 23 hr | |
| Apr 19, 5:59 AM EDT | Flash Flood Warning | CHS | Charleston | 3 hr |
| Apr 19, 3:01 PM EDT | Lake Wind Advisory | CHS | Berkeley | 20 hr |
| Apr 19, 3:03 PM EDT | Gale Warning | CHS | 23 hr | |
| Apr 19, 3:09 PM EDT | Coastal Flood Advisory | CHS | 11 hr | |
| Apr 19, 3:09 PM EDT | Rip Current Statement | CHS | 20 hr | |
| Apr 19, 5:50 PM EDT | Special Marine Warning | CHS | 115 min |
Nearby
Flash Flood Warnings in South Carolina, 2014Every flash flood warning in 2014
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.