Alert archive / North Carolina / Flash Flood Warnings in 2009

Flash Flood Warning 15, NWS Greenville-Spartanburg, SC

May 26, 2009Iredell County, North Carolina

NWS Greenville-Spartanburg, SC issued this flash flood warning at May 26, 2009, 3:09 PM EDT for Iredell County, North 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
May 26, 2009, 3:09 PM EDT (19:09 UTC)
Expired
May 26, 2009, 6:00 PM EDT
In force
3 hr
Issued by
NWS Greenville-Spartanburg, SC
Area
Storm-based polygon
Flood severity
None

County Iredell County, NC

The radar

The Roanoke radar (KFCX), 146 km from the middle of the area, began a volume at 19:10 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 12:00Z, 7.2 hours before the alert went out and 93 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 12:00Z on 2009-05-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 254 joules per kilogram.LCLEL10008507005003002001001 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 12:00Z on 2009-05-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 3 square meters per square second.1939Sfc1 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
254 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
478 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
3 m²/s²
0-3 km storm-relative helicity
1 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 May 26, 2:49 PM EDT, 20 minutes earlier.

Area forecast discussion, May 26, 2:49 PM EDT, 20 minutes before
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Hazardous weather outlook, May 26, 3:44 AM EDT, 11 hours 25 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
344 AM EDT TUE MAY 26 2009

GAZ010-017-NCZ062>065-501>510-SCZ001-002-004-005-270745-
RABUN-HABERSHAM-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-GREATER OCONEE-GREATER PICKENS-
344 AM EDT TUE MAY 26 2009

...FLASH FLOOD WATCH IN EFFECT THROUGH WEDNESDAY AFTERNOON...

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.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   FLASH FLOOD WATCH.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS MAY BE NEEDED TO RELAY EXCESSIVE RAINFALL REPORTS OR
REPORTS OF FLASH FLOODING.

GAZ018-026-028-029-NCZ033-035>037-048>053-056>059-068>072-082-SCZ003-
006>014-019-270745-
STEPHENS-FRANKLIN-HART-ELBERT-AVERY-ALEXANDER-IREDELL-DAVIE-MADISON-
YANCEY-MITCHELL-SWAIN-HAYWOOD-BUNCOMBE-CATAWBA-ROWAN-GRAHAM-
NORTHERN JACKSON-CLEVELAND-LINCOLN-GASTON-MECKLENBURG-CABARRUS-
UNION NC-GREENVILLE MOUNTAINS-GREATER GREENVILLE-SPARTANBURG-
CHEROKEE-YORK-ANDERSON-ABBEVILLE-LAURENS-UNION SC-CHESTER-GREENWOOD-
344 AM EDT TUE MAY 26 2009

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

.DAY ONE...TODAY AND TONIGHT.

SHOWERS AND THUNDERSTORMS WILL DEVELOP ACROSS THE WESTERN
CAROLINAS AND NORTHEAST GEORGIA TODAY AND TONIGHT. ANY SHOWERS
THAT DEVELOP IN THIS TROPICAL AIRMASS WILL HAVE THE POTENTIAL TO
PRODUCE LOCALLY VERY HEAVY RAINFALL. ISOLATED FLOODING COULD
DEVELOP IN AREAS THAT REPEATEDLY EXPERIENCE SHOWERS.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

NONE.

HG

In the hours before

Local storm report, May 26, 11:11 AM EDT, 3 hours 58 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
May 25, 9:54 PM EDTAreal Flood AdvisoryGSPBurke, Caldwell111 min
May 25, 11:43 PM EDTAreal Flood AdvisoryGSPMcDowell47 min
May 26, 12:46 AM EDTAreal Flood AdvisoryGSPMcDowell59 min
May 26, 1:30 AM EDTAreal Flood AdvisoryGSPTransylvania3 hr
May 26, 2:04 AM EDTAreal Flood AdvisoryGSPBurke3 hr
May 26, 3:04 AM EDTAreal Flood AdvisoryGSPCatawba116 min
May 26, 3:24 AM EDTAreal Flood AdvisoryGSPAlexander111 min
May 26, 3:41 AM EDTFlash Flood WatchGSPBurke, Caldwell, Henderson, Jackson, McDowell, Macon and 3 more38 hr
May 26, 3:49 AM EDTFlash Flood WarningGSPBurke3 hr
May 26, 5:10 AM EDTAreal Flood AdvisoryGSPRutherford3 hr
May 26, 5:17 AM EDTAreal Flood AdvisoryGSPAlexander118 min
May 26, 8:23 AM EDTFlash Flood WarningGSPAlexander, Iredell3 hr
May 26, 10:11 AM EDTAreal Flood AdvisoryGSPCleveland3 hr
May 26, 6:15 PM EDTAreal Flood AdvisoryGSPGaston, Lincoln105 min
May 26, 7:25 PM EDTAreal Flood AdvisoryGSPCleveland50 min
May 25, 11:31 PM EDTAreal Flood AdvisoryGSPOconee, Pickens59 min
May 26, 12:35 AM EDTAreal Flood AdvisoryGSPOconee55 min
May 26, 4:27 AM EDTAreal Flood AdvisoryGSPSpartanburg2 hr
May 26, 8:19 AM EDTFlash Flood WarningGSPCherokee3 hr
May 26, 11:18 AM EDTAreal Flood WarningGSPCherokee, York3 hr
May 26, 2:39 PM EDTAreal Flood AdvisoryGSPOconee111 min

Nearby

Flash Flood Warnings in North Carolina, 2009Every flash flood warning in 2009

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.