Alert archive / North Carolina / Flash Flood Warnings in 2012
Flash Flood Warning 21, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this flash flood warning at Aug 9, 2012, 7:26 PM EDT for Caldwell County, North Carolina. It was in force for 2 hr. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Aug 9, 2012, 7:26 PM EDT (23:26 UTC)
- Expired
- Aug 9, 2012, 9:35 PM EDT
- In force
- 2 hr
- Issued by
- NWS Greenville-Spartanburg, SC
- Area
- Storm-based polygon
- Flood severity
- None
County Caldwell County, NC
The radar
The Greer radar (KGSP), 134 km from the middle of the area, began a volume at 23:29 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 9, 8:00 PM EDT | FLASH FLOOD | 3 Nnw Patterson, NC | A SMALL STREAM HAS FLOODED WATERFALLS ROAD NEAR THE INTERSECTION WITH KIRBY MOUNTAIN ROAD. ALSO SEVERAL PRIVATE BRIDGES HAVE BEEN WASHED OUT ON RICHLANDS ROAD NEAR U.S. HWY 321. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 11.4 hours before the alert went out and 158 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
- 1282 J/kg
- Mixed-layer CIN
- -71 J/kg
- Mixed-layer LCL
- 930 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 16 m²/s²
- 0-3 km storm-relative helicity
- 15 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
615
WGUS52 KGSP 092326
FFWGSP
NCC027-100330-
/O.NEW.KGSP.FF.W.0021.120809T2326Z-120810T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
726 PM EDT THU AUG 9 2012
THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A
* FLASH FLOOD WARNING FOR...
WESTERN CALDWELL COUNTY IN WESTERN NORTH CAROLINA...
* UNTIL 1130 PM EDT
* AT 721 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA.
RADAR ESTIMATED THAT AS MUCH AS 3 INCHES OF RAIN HAS FALLEN IN THE
MULBERRY CREEK AND LITTLE MULBERRY CREEK BASINS SINCE ABOUT 530
PM. ANOTHER AREA OF VERY HEAVY RAINFALL WILL MOVE ACROSS THE
WARNING AREA THROUGH 9 PM...AND AN ADDITIONAL ONE TO TWO INCHES IS
POSSIBLE ON TOP OF WHAT HAS ALREADY FALLEN.
* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
COLLETTSVILLE...GLOBE AND PATTERSON. THE MAIN STREAMS EXPECTED TO
EXPERIENCE FLOODING INCLUDE MULBERRY CREEK AND LITTLE MULBERRY
CREEK. HOWEVER...OTHER SMALL STREAMS COULD RISE RAPIDLY TO FLOOD
LEVELS AS WELL.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS. DO NOT DRIVE THROUGH AREAS WHERE WATER
COVERS THE ROAD.
TO REPORT HIGH WATER...FLOODING...MUDSLIDES...LANDSLIDES OR OTHER
SEVERE WEATHER THROUGH OUR AUTOMATED REPORTING SYSTEM...CALL OUR TOLL
FREE NUMBER... 1 8 7 7...6 3 3...6 7 7 2.
&&
LAT...LON 3609 8145 3584 8163 3591 8175 3593 8175
3593 8178 3594 8178 3611 8169 3612 8159
$$
LANE1 follow-up statement
925
WGUS72 KGSP 100135
FFSGSP
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
935 PM EDT THU AUG 9 2012
NCC027-100150-
/O.CAN.KGSP.FF.W.0021.000000T0000Z-120810T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CALDWELL NC-
935 PM EDT THU AUG 9 2012
...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR WESTERN CALDWELL
COUNTY IS CANCELLED...
EXCESS RUNOFF FROM HEAVY RAIN HAS ENDED OVER THE WARNED AREA. STREAMS
AND CREEKS IN THE WARNED AREA HAVE RECEDED OR WERE BEGINNING TO
RECEDE...ENDING THE FLOOD THREAT. IF FLOODING HAS BEEN OBSERVED...
PLEASE REPORT IT TO YOUR LOCAL LAW ENFORCEMENT AGENCY.
LAT...LON 3609 8145 3584 8163 3591 8175 3593 8175
3593 8178 3594 8178 3611 8169 3612 8159
$$
JOHThe office that day
Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 8, 8:41 PM EDT | Flash Flood Warning | GSP | Union | 3 hr |
| Aug 9, 1:39 PM EDT | Special Weather Statement | GSP | Graham | 51 min |
| Aug 9, 1:55 PM EDT | Special Weather Statement | GSP | Henderson | 35 min |
| Aug 9, 2:17 PM EDT | Areal Flood Advisory | GSP | Madison | 103 min |
| Aug 9, 2:49 PM EDT | Severe Thunderstorm Warning | GSP | Haywood, Jackson, Swain | 56 min |
| Aug 9, 2:55 PM EDT | Severe Thunderstorm Warning | GSP | Buncombe, Henderson | 46 min |
| Aug 9, 3:16 PM EDT | Severe Thunderstorm Warning | GSP | Haywood | 59 min |
| Aug 9, 4:38 PM EDT | Special Weather Statement | GSP | Henderson | 37 min |
| Aug 9, 4:51 PM EDT | Severe Thunderstorm Warning | GSP | Henderson, Polk | 69 min |
| Aug 9, 6:18 PM EDT | Special Weather Statement | GSP | Rutherford | 42 min |
| Aug 9, 6:41 PM EDT | Special Weather Statement | GSP | Burke | 34 min |
| Aug 9, 6:46 PM EDT | Severe Thunderstorm Warning | GSP | Burke, Cleveland, McDowell, Rutherford | 44 min |
| Aug 9, 6:59 PM EDT | Areal Flood Advisory | GSP | Caldwell | 2 hr |
Nearby
Flash Flood Warnings in North Carolina, 2012Every flash flood warning in 2012
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.