Flash Flood Warning 10, NWS Columbia, SC

Issued

Jul 4, 2003, 8:45 PM EDT (00:45 UTC)

Expired

Jul 4, 2003, 10:30 PM EDT

In force

105 min

Issued by

NWS Columbia, SC

Area

Counties, with a storm outline in the text

County Orangeburg County, SC

The Columbia radar (KCAE), 57 km from the middle of the area, began a volume at 00:47 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.

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this flash flood warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

000 
WGUS52 KCAE 050046
FFWCAE
SCC075-050230-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE COLUMBIA SC
845 PM EDT FRI JUL 4 2003

THE NATIONAL WEATHER SERVICE IN COLUMBIA HAS ISSUED A

* FLASH FLOOD WARNING FOR...
    CENTRAL ORANGEBURG COUNTY IN CENTRAL SOUTH CAROLINA

* UNTIL 1030 PM EDT.

* AT 845 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  A CLUSTER OF NEARLY STATIONARY THUNDERSTORMS OVER THE GREATER
  ORANGEBURG AREA. AT 840 PM...LOCAL LAW ENFORCEMENT REPORTED
  SEVERAL ROADS FLOODED WITH ONE TO TWO FEET OF WATER IN
  ORANGEBURG...AND ONE HOME WAS FLOODED.

* THUNDERSTORM WITH EXCESSIVE RAINFALL WILL BE NEAR THE FOLLOWING
LOCATIONS...
  ORANGEBURG AND VICINITY
  RURAL CENTRAL ORANGEBURG COUNTY

SLOW MOVING THUNDERSTORMS ARE PRODUCING TORRENTIAL RAINFALL IN THE
WARNED AREA. RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH 
FLOODING. DOPPLER RADAR ESTIMATED THAT RAINFALL AMOUNTS IN EXCESS OF 
TWO INCHES HAD FALLEN IN SOME LOCATIONS SINCE 730 PM. VERY HEAVY 
WILL CONTINUE OVER THE WARNED AREA UNTIL 930 PM...WITH TOTAL 
RAINFALL AMOUNTS OF 2 TO 4 INCHES.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED. MOVE TO
HIGHER GROUND.

MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS
BRIDGES...DIPS...OR OTHER LOW SPOTS IF WATER COVERS THE ROADWAY.
NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT. TO
ESCAPE RISING WATER MOVE UP TO HIGHER GROUND.

REPORT ANY FLOODING TO YOUR COUNTY SHERIFF

LAT...LON 3344 8104 3336 8077 3345 8064 3357 8076
          3361 8094

NWS Columbia, SC wrote its last area forecast discussion before this flash flood warning went out at Jul 4, 2:46 PM EDT, 5 hours 59 minutes earlier.

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE COLUMBIA SC
246 PM EDT FRI JUL 4 2003

UPPER RIDGE CONTINUES TO NOSE INTO THE SOUTHEASTERN STATES THROUGH
SUNDAY. BIGGEST DIFFERENCE IN MODELS IS SHORT WAVE CROSSING THE
REGION SUNDAY. GFS HAS THE SHORT WAVE MOVING INTO THE UPSTATE SUNDAY
EVENING THEN CROSSING THE STATE OVERNIGHT SUNDAY. ETA HAS THIS SHORT
WAVE FARTHER NORTH IN NC. BOTH MODELS ARE CONSISTENT WITH THEIR
SOLUTIONS PAST FEW RUNS.

STILL LOOKS LIKE A CHANCE FOR MAINLY DIURNAL CONVECTION TONIGHT INTO
SUNDAY.  MOISTURE ON THE INCREASE WITH PCP H2O INCREASING TO
AROUND 2 INCHES. H7 AND H8 RIDGE LINE WILL KEEP ISOLATED TO CHANCE
POPS FOR THIS EVENING. WILL RANGE POPS FROM 50 PERCENT SOUTH TO 30
PERCENT NORTH FOR SATURDAY. THEN 20 TO 30 PERCENT SATURDAY NIGHT.
POPS A LITTLE HIGHER SUNDAY.. 50 PERCENT ALL AREAS.

EXTENDED DISCUSSION:
UPPER TROUGH OVER THE NORTHEASTERN STATES WITH RIDGE OVER FLORIDA
INTO THE GULF OF MEX FOR MONDAY.  FOR TUE AND WED - UPPER RIDGE
DRIFTS WEST AS UPPER TROUGH DROPS DOWN INTO THE MS RIVER VALLEY.
UPPER TROUGH CROSSES THE REGION THURSDAY WITH ASSOCIATED COLD FRONT
MOVING THROUGH. BY FRIDAY - LOW OVER NEW ENGLAND WITH BIG TROUGH
OVER THE EASTERN US. SURFACE COLD FRONT SOUTH OF THE AREA.

CHANCE OF PRECIP MONDAY THROUGH THURSDAY THEN DRY FRIDAY.

FCSTID =   10
CAE   73  91  73  89 /  10  40  30  50
AGS   70  91  71  89 /  10  50  30  50
SSC   73  91  73  89 /  10  40  30  50
OGB   72  91  72  89 /  10  50  30  50

.CAE...
GA...NONE.
SC...NONE.

LM

GAZ040-063>065-077-SCZ015-016-018-020>022-025>031-035>038-041-041130-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE COLUMBIA SC
525 AM EDT FRI JUL 4 2003

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE MIDLANDS OF SOUTH CAROLINA
AND THE CENTRAL SAVANNAH RIVER AREA.

.DAY ONE...
RIVER FLOODING CONTINUES ON THE CONGAREE RIVER AT CAROLINA EASTMAN
AND
THE SALUDA RIVER AT CHAPPELLS.

.DAYS TWO THROUGH SEVEN...

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED.

AWP

In the hours before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA, SC
305 PM EDT FRI JUL 04 2003

TIME(EDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

215 PM     NEW HOLLAND               SC   1.50 INCH HAIL
07/04/03   AIKEN                          REPORTED BY COUNTY DEPUTY
                                          ALONG HWY 39.

LCV

Flash Flood Warnings in South Carolina, 2003Every flash flood warning in 2003

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.