Alert archive / Georgia / Flash Flood Watches in 2018

Flash Flood Watch 6, NWS Greenville-Spartanburg, SC

May 30, 2018Habersham County, Georgia

NWS Greenville-Spartanburg, SC issued this flash flood watch at May 30, 2018, 8:15 AM EDT for Habersham County, Georgia. It was in force for 42 hr.

The area

The counties it named.

The facts

Issued
May 30, 2018, 8:15 AM EDT (12:15 UTC)
Expired
Jun 1, 2018, 2:00 AM EDT
In force
42 hr
Issued by
NWS Greenville-Spartanburg, SC

County Habersham County, GA

The radar

The Greer radar (KGSP), 123 km from the middle of the area, began a volume at 12:18 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

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 0.3 hours before the alert went out and 166 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, Peachtre/Fal Fld, GA at 12:00Z on 2018-05-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 10 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, Peachtre/Fal Fld, GA at 12:00Z on 2018-05-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 33 square meters per square second.193958Sfc1 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
10 J/kg
Mixed-layer CIN
-173 J/kg
Mixed-layer LCL
931 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
33 m²/s²
0-3 km storm-relative helicity
47 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flash flood watch 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 watch went out at May 30, 7:09 AM EDT, 1 hour 6 minutes earlier.

Area forecast discussion, May 30, 7:09 AM EDT, 1 hour 6 minutes before
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Hazardous weather outlook, May 30, 5:24 AM EDT, 2 hours 51 minutes before
Hazardous Weather Outlook
National Weather Service Greenville-Spartanburg SC
524 AM EDT Wed May 30 2018

GAZ017-018-026-028-029-NCZ035>037-056-057-068>072-082-SCZ004>014-019-
310930-
Habersham-Stephens-Franklin-Hart-Elbert-Alexander-Iredell-Davie-
Catawba-Rowan-Cleveland-Lincoln-Gaston-Mecklenburg-Cabarrus-Union-
Greater Oconee-Greater Pickens-Greater Greenville-Spartanburg-
Cherokee-York-Anderson-Abbeville-Laurens-Chester-Greenwood-
524 AM EDT Wed May 30 2018

...FLASH FLOOD WATCH IN EFFECT UNTIL 8 AM EDT THIS MORNING...

This Hazardous Weather Outlook is for northeast Georgia, piedmont
North Carolina and Upstate 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.

   Flash Flood Watch.

Scattered to numerous thunderstorms will develop today and produce
occasional cloud-to-ground lightning and locally heavy rainfall. Any
thunderstorms will produce briefly gusty winds which could knock down
a few trees given the saturated soil conditions.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

..Thursday...Heavy rain with flooding possible.
..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.

.SPOTTER INFORMATION STATEMENT...

Spotters should relay any reports of flooding, landslides, or wind
damage to the National Weather Service.

GAZ010-NCZ033-048>053-058-059-062>065-501>510-SCZ001>003-310930-
Rabun-Avery-Madison-Yancey-Mitchell-Swain-Haywood-Buncombe-Graham-
Northern Jackson-Macon-Southern Jackson-Transylvania-Henderson-
Caldwell Mountains-Greater Caldwell-Burke Mountains-Greater Burke-
McDowell Mountains-Eastern McDowell-Rutherford Mountains-
Greater Rutherford-Polk Mountains-Eastern Polk-Oconee Mountains-
Pickens Mountains-Greenville Mountains-
524 AM EDT Wed May 30 2018

...FLASH FLOOD WATCH IN EFFECT THROUGH THURSDAY MORNING...

This Hazardous Weather Outlook is for northeast Georgia, western
North Carolina and upstate 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.

   Flash Flood Watch.

Scattered to numerous thunderstorms will develop today and produce
occasional cloud-to-ground lightning and locally heavy rainfall. Any
thunderstorms will produce briefly gusty winds which could knock down
a few trees given the saturated soil conditions.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

..Thursday...Heavy rain with flooding possible.
..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.

.SPOTTER INFORMATION STATEMENT...

Spotters should relay any reports of flooding, landslides, or wind
damage to the National Weather Service.

HG

In the hours before

Local storm report, May 30, 4:48 AM EDT, 3 hours 27 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
448 AM EDT WED MAY 30 2018

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

1100 PM     FLASH FLOOD      3 WSW COLUMBUS          35.23N 82.26W
05/29/2018                   POLK               NC   BROADCAST MEDIA

            REPORT OF WARRIOR DRIVE CLOSED BETWEEN BAKER RD AND
            MEADOWLARK DRIVE DUE TO FLOOD WATERS.

&&

LACORTE
Local storm report, May 30, 4:49 AM EDT, 3 hours 26 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
449 AM EDT WED MAY 30 2018

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

1100 PM     FLASH FLOOD      6 NW COLUMBUS           35.29N 82.29W
05/29/2018                   POLK               NC   BROADCAST MEDIA

            REPORT OF GREEN RIVER COVE RD CLOSED DUE TO FLOOD WATERS.

&&

LACORTE
Local storm report, May 30, 4:51 AM EDT, 3 hours 24 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
451 AM EDT WED MAY 30 2018

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

1100 PM     FLASH FLOOD      5 W COLUMBUS            35.26N 82.30W
05/29/2018                   POLK               NC   BROADCAST MEDIA

            REPORT OF HOLBERT COVE ROAD NEAR COYOTE LANE CLOSED DUE
            TO FLOOD WATERS.

&&

LACORTE
Local storm report, May 30, 4:53 AM EDT, 3 hours 22 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
453 AM EDT WED MAY 30 2018

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

1100 PM     FLASH FLOOD      SALUDA                  35.24N 82.35W
05/29/2018                   POLK               NC   BROADCAST MEDIA

            PORTIONS OF US 176 CLOSED DUE TO FLOOD WATERS BETWEEN
            SALUDA AND TRYON.

&&

LACORTE
Local storm report, May 30, 5:52 AM EDT, 2 hours 23 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
552 AM EDT WED MAY 30 2018

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

0545 AM     FLASH FLOOD      4 ENE OLD FORT          35.66N 82.11W
05/30/2018                   MCDOWELL           NC   COUNTY OFFICIAL

            MULTIPLE TRACTOR TRAILERS REPORTED STUCK IN FLOOD WATERS
            ON COLUMBIA CAROLINA ROAD IN THE GREENLEE COMMUNITY.

&&

HG
Local storm report, May 30, 7:50 AM EDT, 25 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
May 29, 8:33 PM EDTSpecial Weather StatementGSPMecklenburg27 min
May 29, 8:43 PM EDTTornado WarningGSPGaston, Mecklenburg32 min
May 29, 10:11 PM EDTAreal Flood AdvisoryGSPJackson9 hr
May 29, 10:32 PM EDTFlash Flood Warning EmergencyGSPMcDowell12 hr
May 29, 10:41 PM EDTAreal Flood AdvisoryGSPMacon15 hr
May 29, 10:57 PM EDTFlash Flood WarningGSPBurke, Caldwell12 hr
May 29, 11:02 PM EDTFlash Flood WarningGSPBuncombe, Henderson, Polk, Rutherford6 hr
May 29, 11:13 PM EDTFlash Flood WarningGSPYancey6 hr
May 29, 11:23 PM EDTFlash Flood WarningGSPAvery, Mitchell6 hr
May 29, 11:56 PM EDTAreal Flood WarningGSPTransylvania24 hr
May 30, 12:40 AM EDTFlash Flood Warning EmergencyGSPMcDowell10 hr
May 30, 1:32 AM EDTRiver Flood WarningGSPBuncombe31 hr
May 30, 3:10 AM EDTAreal Flood AdvisoryGSPAlexander, Burke, Caldwell, Catawba, Iredell24 hr
May 30, 3:17 AM EDTRiver Flood AdvisoryGSPMadison5 hr
May 30, 3:19 AM EDTRiver Flood AdvisoryGSPBuncombe12 hr
May 30, 4:47 AM EDTAreal Flood WarningGSPBuncombe, Henderson, Polk6 hr
May 30, 4:52 AM EDTFlash Flood WarningGSPRutherford6 hr
May 30, 5:17 AM EDTAreal Flood WarningGSPAvery6 hr
May 30, 5:17 AM EDTAreal Flood AdvisoryGSPAvery, Mitchell6 hr
May 30, 7:32 AM EDTAreal Flood AdvisoryGSPMacon, Swain17 hr
May 30, 7:33 AM EDTRiver Flood AdvisoryGSPCleveland12 hr
May 30, 7:42 AM EDTAreal Flood AdvisoryGSPJackson6 hr
May 30, 8:56 AM EDTRiver Flood WarningGSPBuncombe28 hr
May 30, 8:56 AM EDTRiver Flood WarningGSPMadison38 hr
May 30, 10:28 AM EDTAreal Flood WarningGSPBurke, Caldwell, McDowell, Rutherford18 hr
May 30, 10:55 AM EDTAreal Flood WarningGSPBuncombe, Henderson, Polk12 hr
May 30, 11:10 AM EDTAreal Flood AdvisoryGSPAvery, Mitchell6 hr
May 30, 1:30 PM EDTAreal Flood AdvisoryGSPJackson12 hr
May 30, 5:10 PM EDTAreal Flood AdvisoryGSPAvery, Mitchell, Yancey6 hr
May 30, 6:48 PM EDTSpecial Weather StatementGSPUnion27 min
May 30, 6:56 PM EDTRiver Flood WarningGSPCleveland26 hr
May 29, 9:27 PM EDTAreal Flood WarningGSPGreenville, Spartanburg3 hr
May 30, 12:09 AM EDTAreal Flood WarningGSPGreenville, Spartanburg6 hr
May 30, 1:57 AM EDTAreal Flood AdvisoryGSPSpartanburg3 hr
May 30, 6:09 AM EDTAreal Flood WarningGSPGreenville, Spartanburg6 hr
May 30, 6:50 AM EDTAreal Flood AdvisoryGSPSpartanburg6 hr
May 30, 7:33 AM EDTRiver Flood AdvisoryGSPCherokee, York12 hr
May 30, 9:44 AM EDTAreal Flood AdvisoryGSPCherokee, York8 hr
May 30, 9:56 AM EDTAreal Flood AdvisoryGSPAnderson, Oconee18 hr
May 30, 10:30 AM EDTAreal Flood AdvisoryGSPGreenville, Pickens6 hr
May 30, 11:38 AM EDTAreal Flood AdvisoryGSPGreenville, Spartanburg6 hr
May 30, 4:18 PM EDTAreal Flood AdvisoryGSPGreenville, Pickens5 hr
May 30, 5:30 PM EDTAreal Flood AdvisoryGSPGreenville, Spartanburg16 hr
May 30, 6:05 PM EDTAreal Flood AdvisoryGSPCherokee, York6 hr
May 30, 7:20 PM EDTSpecial Weather StatementGSPPickens25 min
May 29, 8:56 PM EDTAreal Flood AdvisoryGSPRabun10 hr
May 30, 6:54 AM EDTFlash Flood WarningGSPRabun5 hr
May 30, 8:58 AM EDTAreal Flood AdvisoryGSPHabersham6 hr
May 30, 12:05 PM EDTAreal Flood WarningGSPRabun45 hr
May 30, 2:14 PM EDTSpecial Weather StatementGSPRabun31 min
May 30, 5:39 PM EDTAreal Flood AdvisoryGSPHabersham3 hr
May 30, 6:07 PM EDTSpecial Weather StatementGSPHart23 min
May 30, 6:39 PM EDTSpecial Weather StatementGSPHart51 min

Nearby

Flash Flood Watches in Georgia, 2018Every flash flood watch in 2018

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.