Alert archive / South Carolina / Flash Flood Warnings in 2007
Flash Flood Warning 26, NWS Charleston, SC
NWS Charleston, SC issued this flash flood warning at Nov 16, 2007, 11:59 AM EST for Berkeley County, South Carolina. It was in force for 16 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
- Nov 16, 2007, 11:59 AM EST (16:59 UTC)
- Expired
- Nov 16, 2007, 12:15 PM EST
- In force
- 16 min
- Issued by
- NWS Charleston, SC
- Area
- Storm-based polygon
- Flood severity
- Unknown
County Berkeley County, SC
The radar
The Charleston,SC radar (KCLX), 128 km from the middle of the area, began a volume at 17:03 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.
Did it verify
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.
The nearest sounding before it
Charleston AFB, SC (KCHS), launched 12:00Z, 5.0 hours before the alert went out and 42 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
- 1345 m above ground
- 0-6 km bulk shear
- 62 kt
- 0-1 km storm-relative helicity
- -76 m²/s²
- 0-3 km storm-relative helicity
- 55 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS52 KCHS 161700 FFWCHS SCC015-161715- /T.NEW.KCHS.FF.W.0021.071116T1659Z-071116T1715Z/ /00000.U.DM.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED TEST...FLASH FLOOD WARNING...TEST NATIONAL WEATHER SERVICE CHARLESTON SC 1159 AM EST FRI NOV 16 2007 ...THIS MESSAGE IS FOR TEST PURPOSES ONLY... THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A * THIS IS A TEST MESSAGE. FLASH FLOOD WARNING FOR A DAM FAILURE IN... CENTRAL BERKELEY COUNTY IN SOUTHEAST SOUTH CAROLINA... * UNTIL 1215 PM EST * THIS IS A TEST MESSAGE. AT 1159 AM EST...THE TEST DAM FAILED CAUSING FLASH FLOODING DOWNSTREAM ON THE TEST RIVER. * THIS IS A TEST MESSAGE. AFFECTED LOCATIONS INCLUDE PINOPOLIS THIS IS A TEST MESSAGE. TAKE NECESSARY PRECAUTIONS IMMEDIATELY. THIS IS A TEST MESSAGE. MONITOR LOCAL RADIO OR TELEVISION AND FOLLOWING INSTRUCTIONS FOR ANY REQUIRED EVACUATION AS OUTLINED BY LOCAL EMERGENCY OFFICIALS. THIS IS A TEST MESSAGE. DO NOT TAKE ACTION BASED ON THIS MESSAGE. LAT...LON 3336 7985 3323 7970 3311 7991 3324 8006 $$
What forecasters said that day
The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Charleston, SC wrote its last area forecast discussion before this flash flood warning went out at Nov 16, 10:38 AM EST, 1 hour 21 minutes earlier.
Area forecast discussion, Nov 16, 10:38 AM EST, 1 hour 21 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CHARLESTON SC
1038 AM EST FRI NOV 16 2007
.SYNOPSIS...
HIGH PRES WILL BUILD INTO THE AREA THROUGH TONIGHT. A WEAK BACKDOOR
COLD FRONT WILL MOVE SOUTH THROUGH THE AREA LATE SUN AND SUN NIGHT.
HIGH PRES WILL REBUILD FROM THE N MON AND CONTINUE INTO MID WEEK.
&&
.NEAR TERM /THROUGH TONIGHT/...
COLD ADVECTION HAS SLOWLY DIMINISHED THIS MORNING WITH SFC HIGH
PRESSURE BUILDING IN FROM THE W. SUNNY SKIES WILL PREVAIL BUT A
COLD AIRMASS IN PLACE SHOULD KEEP TEMPERATURES IN THE 50S ACROSS
THE AREA.
WINDS HAVE QUICKLY DIMINISHED ON LAKE MOULTRIE DESPITE THE
FAVORABLE LOW-LEVEL MIXING PROFILE. HAVE CANCELED THE LAKE WIND
ADVISORY A COUPLE HOURS AHEAD OF SCHEDULE.
&&
.SHORT TERM /SATURDAY/...
HIGH PRES IS STILL FORECAST TO SETTLE RIGHT OVER FAR SE GEORGIA
BY SUNRISE SAT. A VERY IMPRESSIVE RADIATIONAL SETUP OVER OUR
ENTIRE AREA TONIGHT WILL SEND TEMPERATURES QUICKLY DIPPING INTO
THE 30S THIS EVENING WITH THE FREEZING LINE TEETERING THROUGH N
CHARLESTON TO JUST N OF BEAUFORT BY DAWN. IN SE GEORGIA...UPPER
20S SHOULD BE FAIRLY WDSPRD. FOR NEAR-COASTAL ZONES WHERE THE
GROWING SEASON HAS NOT ENDED...WE UPGRADED TO A FREEZE WARNING
FROM INLAND JASPER COUNTY SOUTHWARD INTO GEORGIA. A CLOSE CALL
AWAY FROM THE IMMEDIATE COAST IN CHARLESTON DOWN TO COASTAL
JASPER...RETAINED FREEZE WATCH BUT AT VERY LEAST A SOLID FROST IS
LIKELY...ALSO POSSIBLY INTO FAR WRN PARTS OF THE GEORGIA IMMEDIATE
COASTAL ZONES. WILL LET NEXT SHIFT GET ANOTHER LOOK AT THE
SITUATION BEFORE COMMITTING TO A FREEZE WARNING WELL N OF THE SFC
HIGH PRES CENTER.
&&
.LONG TERM /SATURDAY NIGHT THROUGH THURSDAY/...
MEDIUM RANGE GUIDANCE IS IN FAIRLY GOOD AGREEMENT ACROSS THE
SOUTHEAST UNITED STATES THROUGHOUT THE EXTENDED PERIOD THIS
MORNING. HIGH PRESSURE CENTERED OVER THE AREA SATURDAY MORNING
WILL SHIFT EASTWARD AND INTO THE ATLANTIC SATURDAY NIGHT AND
SUNDAY AS A WEAK COLD FRONT NORTH OF THE REGION BEGINS TO TAKE AIM
ON THE FORECAST AREA. THIS COLD FRONT WILL PUSH SOUTHWARD THROUGH
THE CWA SUNDAY NIGHT...WITH HIGH PRESSURE THEN BUILDING FROM THE
NORTH ON MONDAY. HIGH PRESSURE WILL REMAIN THE DOMINANT WEATHER
FEATURE MONDAY THROUGH WEDNESDAY...WITH A COLD FRONT THEN
APPROACHING THE REGION FROM THE WEST FOR WEDNESDAY NIGHT AND
THANKSGIVING DAY.
AS FOR FORECAST DETAILS...EXPECT GENERALLY DRY WEATHER THROUGH THE
EXTENDED PERIOD. WILL KEEP THE FORECAST RAIN FREE SATURDAY THROUGH
WEDNESDAY NIGHT...THEN RUN WITH LOW CHANCE POPS ON THANKSGIVING DAY
WITH THE NEXT COLD FRONT EXPECTED TO PUSH THROUGH THE AREA.
TEMPERATURES ARE EXPECTED NEAR TO SLIGHTLY BELOW NORMAL SATURDAY
THROUGH MONDAY...THEN NEAR TO SLIGHTLY ABOVE NORMAL TUESDAY THROUGH
THURSDAY.
&&
.AVIATION /16Z FRIDAY THROUGH TUESDAY/...
VFR CONDITIONS WILL PREVAIL AT KSAV/KCHS FOR THE ENTIRE 12Z TAF
CYCLE.
EXTENDED AVIATION OUTLOOK...VFR CONDITIONS WILL PERSIST.
&&
.MARINE...
WINDS AND SEAS HAVE SHOWN A RAPID DECREASE DURING THE LAST TWO
HOURS DUE TO WEAKENING COLD ADVECTION POST-FROPA. HAVE LOWERED THE
SMALL CRAFT FOR THE NEARSHORE WATERS BUT CONTINUE WITH SMALL CRAFT
OUTER GA WATERS MAINLY FOR SEAS THROUGH TODAY. WILL CONTINUE
EXERCISE CAUTION IN THE HARBOR FOR 15-20 KTS.
HIGH PRESSURE WILL BUILD EASTWARD AND INTO THE ATLANTIC SATURDAY
THROUGH SUNDAY AS A WEAK COLD FRONT APPROACHES FROM THE NORTH. THIS
COLD FRONT WILL PUSH SOUTHWARD THROUGH THE WATERS SUNDAY
NIGHT...WITH HIGH PRESSURE THEN BUILDING BACK INTO THE REGION FOR
MONDAY AND TUESDAY. WINDS ARE EXPECTED TO REMAIN BELOW SMALL CRAFT
ADVISORY THRESHOLDS THROUGH THE PERIOD. SEAS ON THE OTHER HAND MAY
APPROACH SMALL CRAFT CRITERIA LATE MONDAY NIGHT AND TUESDAY ACROSS
THE OUTER GEORGIA WATERS...AS FAVORABLE NORTHEAST FETCH AND DECENT
GRADIENT WILL ALLOW FOR SEAS TO BUILD.
&&
.FIRE WEATHER...
CRITICAL HUMIDITIES ARE EXPECTED TODAY AND SAT...BUT WINDS WILL BE
MUCH LIGHTER.
&&
.CHS WATCHES/WARNINGS/ADVISORIES...
GA...FREEZE WARNING FROM 1 AM TO 8 AM EST SATURDAY FOR GAZ101-116-
118-137-138-140.
SC...FREEZE WARNING FROM 1 AM TO 8 AM EST SATURDAY FOR SCZ047.
FREEZE WATCH FROM LATE TONIGHT THROUGH SATURDAY MORNING FOR
SCZ048>051.
MARINE...SMALL CRAFT ADVISORY UNTIL 4 PM EST THIS AFTERNOON FOR AMZ374.
&&
JRLHazardous weather outlook, Nov 16, 10:31 AM EST, 1 hour 28 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE CHARLESTON SC 1031 AM EST FRI NOV 16 2007 GAZ087-088-099-100-114-115-117-119-139-141-SCZ040-042>045-171030- JENKINS-SCREVEN-CANDLER-BULLOCH-TATTNALL-EVANS-COASTAL BRYAN- COASTAL CHATHAM-COASTAL LIBERTY-COASTAL MCINTOSH-ALLENDALE-HAMPTON- INLAND COLLETON-DORCHESTER-BERKELEY- 1031 AM EST FRI NOV 16 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST GEORGIA AND SOUTHEAST SOUTH CAROLINA. .DAY ONE...TODAY AND TONIGHT. FIRE WEATHER...CRITICAL RELATIVE HUMIDITY TODAY. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY. FIRE WEATHER...CRITICAL RELATIVE HUMIDITY SATURDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. GAZ101-116-118-137-138-140-SCZ047-171030- EFFINGHAM-INLAND BRYAN-INLAND CHATHAM-LONG-INLAND LIBERTY- INLAND MCINTOSH-INLAND JASPER- 1031 AM EST FRI NOV 16 2007 ...FREEZE WARNING IN EFFECT FROM 1 AM TO 8 AM EST SATURDAY... THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST GEORGIA AND SOUTHEAST SOUTH CAROLINA. .DAY ONE...TODAY AND TONIGHT. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. FREEZE WARNING. FIRE WEATHER...CRITICAL RELATIVE HUMIDITY TODAY. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. FREEZE WARNING. FIRE WEATHER...CRITICAL RELATIVE HUMIDITY SATURDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. SCZ048>051-171030- BEAUFORT-COASTAL COLLETON-CHARLESTON-COASTAL JASPER- 1031 AM EST FRI NOV 16 2007 ...FREEZE WATCH IN EFFECT FROM LATE TONIGHT THROUGH SATURDAY MORNING... THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST SOUTH CAROLINA. .DAY ONE...TODAY AND TONIGHT. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. FREEZE WATCH. FIRE WEATHER...CRITICAL RELATIVE HUMIDITY TODAY. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. FREEZE WATCH. FIRE WEATHER...CRITICAL RELATIVE HUMIDITY SATURDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. AMZ330-350-352-354-374-171030- CHARLESTON HARBOR- WATERS FROM SOUTH SANTEE RIVER TO EDISTO BEACH SC OUT 20 NM- WATERS FROM EDISTO BEACH SC TO SAVANNAH GA OUT 20 NM- WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA OUT 20 NM...INCLUDING GRAYS REEF NATIONAL MARINE SANCTUARY- WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA EXTENDING FROM 20 TO 60 NM- 1031 AM EST FRI NOV 16 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR ATLANTIC COASTAL WATERS. .DAY ONE...TODAY AND TONIGHT. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.
The office that day
Everything else NWS Charleston, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 16, 4:07 AM EST | Freeze Warning | CHS | 29 hr | |
| Nov 16, 11:22 AM EST | Flash Flood Warning | CHS | Berkeley | 23 min |
| Nov 16, 12:20 PM EST | Flash Flood Warning | CHS | Berkeley | 10 min |
Nearby
Flash Flood Warnings in South Carolina, 2007Every flash flood warning in 2007
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.