Alert archive / South Carolina / Flash Flood Warnings in 2002
Flash Flood Warning 6, NWS Charleston, SC
NWS Charleston, SC issued this flash flood warning at Aug 30, 2002, 10:00 AM EDT for Charleston County, South Carolina. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Aug 30, 2002, 10:00 AM EDT (14:00 UTC)
- Expired
- Aug 30, 2002, 1:00 PM EDT
- In force
- 3 hr
- Issued by
- NWS Charleston, SC
- Area
- Whole counties
County Charleston County, SC
The radar
The Charleston,SC radar (KCLX), 103 km from the middle of the area, began a volume at 14:02 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 12:00Z, 2.0 hours before the alert went out and 18 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
- 998 J/kg
- Mixed-layer CIN
- -10 J/kg
- Mixed-layer LCL
- 531 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 45 m²/s²
- 0-3 km storm-relative helicity
- 68 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.3
The text
As transmitted, in the capitals the NWS used until 2016.
000
WGUS52 KCHS 301400
FFWCHS
SCC019-301700-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING...DANGEROUS FLOODING IN DOWNTOWN CHARLESTON
NATIONAL WEATHER SERVICE CHARLESTON SC
1000 AM EDT FRI AUG 30 2002
THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A
* FLASH FLOOD WARNING FOR...
CHARLESTON COUNTY IN SOUTHEAST SOUTH CAROLINA.
* UNTIL 100 PM EDT.
* AT 1000 AM EDT...EMERGENCY MANAGEMENT OFFICIALS REPORTED SIGNIFICANT
FLOODING IN DOWNTOWN CHARLESTON WITH MANY STREETS FLOODED. HEAVY
RAIN WILL SLOWLY DECREASE IN INTENSITY OVER THE NEXT HOUR HOWEVER
ADDITIONAL RAINFALL WILL ONLY AGGRAVATE ONGOING FLOODING. ADDITIONAL
THUNDERSTORMS ARE DEVELOPING OFF THE SOUTH CAROLINA COAST AND MOVING
NORTH AT 15 TO 20 MPH. WITH HIGH TIDE APPROACHING...LONG TERM
SIGNIFICANT FLOODING IS POSSIBLE ACROSS ALL OF CHARLESTON COUNTY
THROUGH EARLY AFTERNOON.
* SOME LOCATIONS AFFECTED INCLUDE...
ADAMS RUN...AWENDAW... CHARLESTON...CHARLESTON AIRPORT...EDISTO
ISLAND...HANAHAN... HOLLYWOOD...JOHNS ISLAND...MCCLELLANVILLE...
MEGGETT...MOUNT PLEASANT...NORTH CHARLESTON...RAVENEL...
SHADOWMOSS...WADMALAW ISLAND...WEST ASHLEY AND YONGES ISLAND.
DO NOT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD MOST FLASH
FLOOD DEATHS OCCUR IN AUTOMOBILES.
$$
LAT...LON 3262 8036 3253 8032 3310 7932 3316 7946
3282 7995 3297 8006 3280 8014 3283 8036
ST3 follow-up statements
000 WGUS72 KCHS 301448 FFSCHS SCC019-301515- BULLETIN - IMMEDIATE BROADCAST REQUESTED FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE CHARLESTON SC 1048 AM EDT FRI AUG 30 2002 ...FLASH FLOOD WARNING REMAINS IN EFFECT FOR CHARLESTON COUNTY UNTIL 100 PM EDT... ...DANGEROUS AND SIGNIFICANT FLOODING CONTINUES IN DOWNTOWN CHARLESTON... AT 1048 AM...RADAR INDICATED THAT THE HEAVIEST RAINS HAVE PUSHED OUT OF DOWNTOWN CHARLESTON...HOWEVER LIGHT TO OCCASIONALLY MODERATE RAINS WILL CONTINUE THROUGH THE MORNING. SIGNIFICANT FLOODING IS ONGOING THROUGHOUT MUCH OF DOWNTOWN WITH MANY STREETS IMPASSABLE OR CLOSED. FLOOD WATERS ARE ALSO LIKELY THREATENING HOMES. WITH HIGH TIDE QUICKLY APPROACHING...LONG TERM FLOODING WILL CONTINUE EVEN WITH ONLY LIGHT RAIN FALLING. ADDITIONAL THUNDERSTORMS WITH HEAVY RAIN ARE DEVELOPING OFF THE SOUTH CAROLINA AND GEORGIA COASTS. THESE STORMS MAY AFFECT CHARLESTON COUNTY LATER THIS AFTERNOON. MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO DRIVE WHERE WATER COVERS THE ROADWAY. THIS IS A VERY DANGEROUS SITUATION. STAY TUNED TO NOAA WEATHER RADIO...TV OR YOUR LOCAL MEDIA OUTLET FOR THE LATEST INFORMATION FROM THE NATIONAL WEATHER SERVICE. $$ ST
000 WGUS72 KCHS 301619 FFSCHS SCC019-301715- BULLETIN - IMMEDIATE BROADCAST REQUESTED FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE CHARLESTON SC 1219 PM EDT FRI AUG 30 2002 ...FLASH FLOOD WARNING REMAINS IN EFFECT FOR CHARLESTON COUNTY UNTIL 1 PM EDT... ...DANGEROUS AND SIGNIFICANT FLOODING PERSISTS IN DOWNTOWN CHARLESTON... AT 1219 PM EDT...RADAR INDICATED ONLY LIGHT TO OCCASIONALLY MODERATE RAIN FALLING ACROSS MUCH OF CHARLESTON COUNTY. RAINFALL AMOUNTS OF 2 TO 4 INCHES FELL ACROSS MUCH OF THE AREA EARLIER TODAY AND WITH HIGH TIDE APPROACHING...NO STORM DRAINAGE HAS OCCURRED. BECAUSE OF THIS...SIGNIFICANT FLOODING CONTINUES ACROSS MUCH OF DOWNTOWN CHARLESTON. NUMEROUS ROADWAYS CONTINUE TO EITHER BE CLOSED OR HAVE SIGNIFICANT STANDING WATER ON THEM. HOMES ARE ALSO BEING THREATENED BY FLOOD WATERS. ANOTHER LARGE AREA OF RAIN AND THUNDERSTORMS CONTINUES OFF THE SOUTH CAROLINA AND GEORGIA COASTS. THESE STORMS ARE MOVING NORTH BETWEEN 15 AND 20 MPH AND COULD AFFECT CHARLESTON COUNTY LATER THIS AFTERNOON. SHOULD ADDITIONAL HEAVY RAINS DEVELOP...THE FLASH FLOOD WARNING MAY BE EXTENDED BEYOND 1 PM EDT. THIS IS A VERY DANGEROUS SITUATION. STAY TUNED TO NOAA WEATHER RADIO...TV OR YOUR LOCAL MEDIA OUTLET FOR THE LATEST STATEMENTS AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE IN CHARLESTON. $$ ST
000 WGUS72 KCHS 301703 FFSCHS SCC019-301730- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE CHARLESTON SC 103 PM EDT FRI AUG 30 2002 ...FLASH FLOOD WARNING FOR CHARLESTON COUNTY HAS EXPIRED... ALTHOUGH LIGHT RAIN WILL CONTINUE THROUGH MOST OF THE AFTERNOON... HEAVY RAIN IS NOT IMMINENT. THEREFORE THE FLASH FLOOD WARNING HAS BEEN ALLOWED TO EXPIRE. HIGH TIDE WILL OCCUR AROUND 140 PM AND UNTIL THEN...AREAS OF STANDING WATER WILL CONTINUE ACROSS THE COUNTY... INCLUDING DOWNTOWN CHARLESTON...FOR THE NEXT FEW HOURS. SHOULD HEAVY RAIN REDEVELOP ACROSS THE AREA THIS AFTERNOON OR EVENING...ANOTHER FLASH FLOOD WARNING MAY BE NEEDED. A FLOOD WATCH REMAINS IN EFFECT FOR ALL OF SOUTHEAST SOUTH CAROLINA THIS AFTERNOON AND WILL LIKELY BE EXTENDED INTO TONIGHT. PEOPLE ACROSS THE AREA SHOULD REMAIN ALERT AND BE PREPARED TO TAKE ACTION SHOULD FLOODING BE OBSERVED OR IF A FLASH FLOOD WARNING IS ISSUED. STAY TUNED TO NOAA WEATHER RADIO...TV OR YOUR LOCAL MEDIA OUTLET FOR LATER STATEMENTS AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE IN CHARLESTON. $$ ST
The office that day
Everything else NWS Charleston, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 30, 8:05 AM EDT | Special Marine Warning | CHS | 55 min | |
| Aug 30, 8:16 AM EDT | Tornado Warning | CHS | Beaufort | 29 min |
Nearby
Flash Flood Warnings in South Carolina, 2002Every flash flood warning in 2002
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.