Alert archive / South Carolina / Flash Flood Warnings in 2014

Flash Flood Warning 42, NWS Greenville-Spartanburg, SC

September 19, 2014Chester County, South Carolina

NWS Greenville-Spartanburg, SC issued this flash flood warning at Sep 19, 2014, 3:34 AM EDT for Chester 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
Sep 19, 2014, 3:34 AM EDT (07:34 UTC)
Expired
Sep 19, 2014, 6:30 AM EDT
In force
3 hr
Issued by
NWS Greenville-Spartanburg, SC
Area
Storm-based polygon
Flood severity
None

County Chester County, SC

The radar

The Columbia radar (KCAE), 83 km from the middle of the area, began a volume at 07:36 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

Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 7.6 hours before the alert went out and 192 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.

Skew-T log-pSkew-T log-p diagram, Greensboro/Hi Pt, NC at 00:00Z on 2014-09-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 162 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Greensboro/Hi Pt, NC at 00:00Z on 2014-09-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 27 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
162 J/kg
Mixed-layer CIN
-23 J/kg
Mixed-layer LCL
1186 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
27 m²/s²
0-3 km storm-relative helicity
63 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

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 Greenville-Spartanburg, SC wrote its last area forecast discussion before this flash flood warning went out at Sep 19, 2:56 AM EDT, 38 minutes earlier.

Area forecast discussion, Sep 19, 2:56 AM EDT, 38 minutes before
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Hazardous weather outlook, Sep 18, 11:46 PM EDT, 3 hours 48 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1146 PM EDT THU SEP 18 2014

GAZ010-017-018-026-028-029-NCZ062>065-068-507>510-SCZ001>008-010>013-
019-200400-
RABUN-HABERSHAM-STEPHENS-FRANKLIN-HART-ELBERT-MACON-SOUTHERN JACKSON-
TRANSYLVANIA-HENDERSON-CLEVELAND-RUTHERFORD MOUNTAINS-
GREATER RUTHERFORD-POLK MOUNTAINS-EASTERN POLK-OCONEE MOUNTAINS-
PICKENS MOUNTAINS-GREENVILLE MOUNTAINS-GREATER OCONEE-
GREATER PICKENS-GREATER GREENVILLE-SPARTANBURG-CHEROKEE-ANDERSON-
ABBEVILLE-LAURENS-UNION SC-GREENWOOD-
1146 PM EDT THU SEP 18 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST GEORGIA...PIEDMONT
NORTH CAROLINA...WESTERN NORTH CAROLINA AND UPSTATE SOUTH CAROLINA.

.DAY ONE...TONIGHT.

ISOLATED THUNDERSTORMS WILL CONTINUE OVERNIGHT. THE PRIMARY
THREATS WITH ANY OF THESE THUNDERSTORMS WILL BE BRIEF HEAVY
RAINFALL AND CLOUD TO GROUND LIGHTNING.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

..FRIDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
..SATURDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
..SUNDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
..MONDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
..TUESDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
..WEDNESDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

NONE.

NCZ033-035>037-048>053-056-058-059-069-501>506-200400-
AVERY-ALEXANDER-IREDELL-DAVIE-MADISON-YANCEY-MITCHELL-SWAIN-HAYWOOD-
BUNCOMBE-CATAWBA-GRAHAM-NORTHERN JACKSON-LINCOLN-CALDWELL MOUNTAINS-
GREATER CALDWELL-BURKE MOUNTAINS-GREATER BURKE-MCDOWELL MOUNTAINS-
EASTERN MCDOWELL-
1146 PM EDT THU SEP 18 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PIEDMONT NORTH CAROLINA AND
WESTERN NORTH CAROLINA.

.DAY ONE...TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

..FRIDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
..SATURDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
..SUNDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
..MONDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
..TUESDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
..WEDNESDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

NONE.

NCZ057-070>072-082-SCZ009-014-200400-
ROWAN-GASTON-MECKLENBURG-CABARRUS-UNION NC-YORK-CHESTER-
1146 PM EDT THU SEP 18 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PIEDMONT NORTH CAROLINA AND
UPSTATE SOUTH CAROLINA.

.DAY ONE...TONIGHT.

THUNDERSTORMS WILL CONTINUE OVERNIGHT. THE MAIN HAZARDS WILL BE
CLOUD TO GROUND LIGHTING AND VERY HEAVY RAINFALL. SOME OF THE
THUNDERSTORMS WILL PRODUCE HAIL AND GUSTY WINDS.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

..FRIDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
..SATURDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
..SUNDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
..MONDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
..TUESDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
..WEDNESDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

NONE.

07

In the hours before

Special weather statement, Sep 18, 11:41 PM EDT, 3 hours 53 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1141 PM EDT THU SEP 18 2014

NCZ082-190430-
UNION-
1141 PM EDT THU SEP 18 2014

...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN UNION COUNTY IN THE
PIEDMONT OF NORTH CAROLINA THROUGH 1230 AM EDT...

AT 1138 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR MARSHVILLE...OR 10 MILES EAST OF MONROE...
MOVING WEST AT 5 MPH.

THIS STORM WILL IMPACT LOCATIONS NEAR...
  WINGATE...
  UNIONVILLE...

SMALL HAIL...WIND GUSTS UP TO 40 MPH AND TORRENTIAL RAINFALL ARE
EXPECTED WITH THIS STORM.

THE COMBINATION OF GUSTY WINDS AND WET SOIL CONDITIONS WILL CAUSE
SCATTERED TREES AND POWER LINES TO FALL. SEEK SHELTER INSIDE AN
INTERIOR ROOM.

HEAVY RAINS MAY FLOOD AREAS WITH POOR DRAINAGE...SUCH AS DITCHES AND
UNDERPASSES. AVOID THESE AREAS AND DO NOT CROSS FLOODED ROADS. WATER
LEVELS OF SMALL STREAMS AND RIVERS MAY ALSO RISE RAPIDLY. SEEK HIGHER
GROUND IF THREATENED BY FLOOD WATERS.

PLEASE REPORT DAMAGING WINDS...HAIL...OR FLOODING TO THE NATIONAL
WEATHER SERVICE GREENVILLE SPARTANBURG BY CALLING TOLL FREE...1...
800...2 6 7...8 1 0 1...OR BY POSTING ON OUR FACEBOOK PAGE...OR TWEET
IT USING HASHTAG NWSGSP. YOUR MESSAGE SHOULD DESCRIBE THE EVENT AND
SPECIFIC LOCATION WHERE IT OCCURRED.

LAT...LON 3503 8029 3497 8029 3491 8031 3498 8063
      3519 8053 3519 8049 3517 8046 3518 8043
      3512 8028

JOH
Local storm report, Sep 19, 1:26 AM EDT, 2 hours 8 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
126 AM EDT FRI SEP 19 2014

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1250 AM     FLASH FLOOD      WINGATE                 34.98N 80.45W
09/19/2014                   UNION              NC   911 CALL CENTER

            HWY 74 IS CLOSED NEAR LOVE STREET DUE TO FLOODING.

&&

JOH
Local storm report, Sep 19, 1:28 AM EDT, 2 hours 6 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
128 AM EDT FRI SEP 19 2014

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0100 AM     FLASH FLOOD      WINGATE                 34.98N 80.45W
09/19/2014                   UNION              NC   911 CALL CENTER

            WILSON STREET IN WINGATE IS CLOSED DUE TO FLOODING.

&&

JOH
Local storm report, Sep 19, 2:59 AM EDT, 35 minutes before
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The office that day

Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 18, 11:27 PM EDTAreal Flood AdvisoryGSPUnion2 hr
Sep 18, 11:41 PM EDTSpecial Weather StatementGSPUnion49 min
Sep 18, 11:53 PM EDTSevere Thunderstorm WarningGSPUnion67 min
Sep 19, 12:19 AM EDTFlash Flood WarningGSPUnion3 hr
Sep 19, 1:19 AM EDTAreal Flood AdvisoryGSPUnion2 hr
Sep 19, 1:44 AM EDTFlash Flood WarningGSPUnion3 hr
Sep 19, 2:18 AM EDTAreal Flood AdvisoryGSPMecklenburg102 min
Sep 19, 3:23 AM EDTAreal Flood AdvisoryGSPUnion2 hr
Sep 19, 4:36 AM EDTAreal Flood AdvisoryGSPUnion114 min
Sep 19, 12:33 AM EDTAreal Flood AdvisoryGSPChester117 min
Sep 19, 2:00 AM EDTFlash Flood WarningGSPChester3 hr
Sep 19, 3:16 AM EDTAreal Flood AdvisoryGSPChester2 hr
Sep 19, 4:49 AM EDTAreal Flood AdvisoryGSPChester2 hr

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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.