Alert archive / North Carolina / Flash Flood Warnings in 2012
Flash Flood Warning 42, NWS Raleigh, NC
NWS Raleigh, NC issued this flash flood warning at Sep 3, 2012, 2:53 PM EDT for Guilford County, North Carolina. It was in force for 3 hr. 2 reports 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
- Sep 3, 2012, 2:53 PM EDT (18:53 UTC)
- Expired
- Sep 3, 2012, 5:45 PM EDT
- In force
- 3 hr
- Issued by
- NWS Raleigh, NC
- Area
- Storm-based polygon
- Flood severity
- None
County Guilford County, NC
The radar
The Roanoke radar (KFCX), 113 km from the middle of the area, began a volume at 18:52 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 |
|---|---|---|---|
| Sep 3, 3:37 PM EDT | FLASH FLOOD | 4 Sse Greensboro, NC | ROAD CLOSED DUE TO FLASH FLOODING AT INTERSECTION OF RANDLEMAN RD AND CORLISS ST |
| Sep 3, 4:23 PM EDT | FLASH FLOOD | 2 E Pleasant Garden, NC | ROAD CLOSED DUE TO FLASH FLOODING AT INTERSECTION OF NEELLEY RD AND TABERNACLE CHURCH RD. STREET COMPLETELY FLOODED AND IMPASSIBLE. |
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, 6.9 hours before the alert went out and 10 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
- 576 J/kg
- Mixed-layer CIN
- -44 J/kg
- Mixed-layer LCL
- 801 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 57 m²/s²
- 0-3 km storm-relative helicity
- 44 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
656
WGUS52 KRAH 031853
FFWRAH
NCC081-032145-
/O.NEW.KRAH.FF.W.0042.120903T1853Z-120903T2145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE RALEIGH NC
253 PM EDT MON SEP 3 2012
THE NATIONAL WEATHER SERVICE IN RALEIGH HAS ISSUED A
* FLASH FLOOD WARNING FOR...
GUILFORD COUNTY IN CENTRAL NORTH CAROLINA
* UNTIL 545 PM EDT
* AT 247 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THUNDERSTORMS WITH VERY HEAVY RAIN PRODUCING FLOODING OVER GUILFORD
COUNTY. DOPPLER RADAR ESTIMATED THAT OVER AN INCH OF RAIN HAS
FALLEN OVER GREENSBORO AND VERY HEAVY RAINFALL IS MOVING INTO THE
CITY.
* LOCATIONS THREATENED WITH FLOODING INCLUDE MCLEANSVILLE...HIGH
POINT AND GREENSBORO.
AN ADDITIONAL 2 TO 3 INCHES OF RAINFALL ARE STILL POSSIBLE RESULTING
IN ADDITIONAL FLOODING.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
EXCESSIVE RUNOFF FROM THE HEAVY RAIN WILL CAUSE FLASH FLOODING OF
CREEKS AND STREAMS...ROADS...LOW LYING AND POOR DRAINAGE AREAS. DO
NOT DRIVE YOUR VEHICLE INTO AREAS WHERE WATER COVERS THE ROAD. MANY
ROADS AND INTERSECTIONS IN THE AREA WILL QUICKLY FLOOD. WHEN
ENCOUNTERING FLOODED ROADS TURN AROUND...DONT DROWN.
PLEASE REPORT FLOODING TO THE NATIONAL WEATHER SERVICE BY CALLING...
1...8 7 7...6 3 3...6 7 7 2 OR NOTIFY YOUR LOCAL LAW ENFORCEMENT
AGENCY.
&&
LAT...LON 3625 7954 3590 7954 3592 8004 3593 8005
3626 8003
$$
102 follow-up statements
840
WGUS72 KRAH 032046
FFSRAH
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
446 PM EDT MON SEP 3 2012
NCC081-032145-
/O.CON.KRAH.FF.W.0042.000000T0000Z-120903T2145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
GUILFORD NC-
446 PM EDT MON SEP 3 2012
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 545 PM EDT FOR
GUILFORD COUNTY...
AT 437 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR ESTIMATED
THAT 2 TO 3 INCHES OF RAIN HAS FALLEN OVER GUILFORD COUNTY. ALTHOUGH
THE HEAVIEST RAIN HAS MOVED OUT OF THE AREA...WATER ON SOUTH BUFFALO
CREEK AND RYAN CREEK CONTINUES TO RISE.
THE INTERSECTION OF NEELLEY RD AND TABERNACLE CHURCH RD WAS ALSO
EXPERIENCING FLOODING.
LOCATIONS THREATENED BY FLOODING INCLUDE BUT ARE NOT LIMITED TO
MCLEANSVILLE AND GREENSBORO.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
EXCESSIVE RUNOFF FROM THE HEAVY RAIN WILL CAUSE FLASH FLOODING OF
CREEKS AND STREAMS...ROADS...LOW LYING AND POOR DRAINAGE AREAS. DO
NOT DRIVE YOUR VEHICLE INTO AREAS WHERE WATER COVERS THE ROAD. MANY
ROADS AND INTERSECTIONS IN THE AREA WILL QUICKLY FLOOD. WHEN
ENCOUNTERING FLOODED ROADS TURN AROUND...DONT DROWN.
PLEASE REPORT FLOODING TO THE NATIONAL WEATHER SERVICE BY CALLING...
1...8 7 7...6 3 3...6 7 7 2 OR NOTIFY YOUR LOCAL LAW ENFORCEMENT
AGENCY.
&&
LAT...LON 3625 7954 3590 7954 3592 8004 3593 8005
3626 8003
$$
10888
WGUS72 KRAH 032140
FFSRAH
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
540 PM EDT MON SEP 3 2012
NCC081-032149-
/O.EXP.KRAH.FF.W.0042.000000T0000Z-120903T2145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
GUILFORD NC-
540 PM EDT MON SEP 3 2012
...THE FLASH FLOOD WARNING WILL EXPIRE AT 545 PM EDT FOR GUILFORD
COUNTY...
AT 537 PM EDT...THE THUNDERSTORMS THAT WERE PRODUCING VERY HEAVY
RAIN OVER GUILFORD COUNTY HAVE WEAKENED AND MOVED OUT OF THE AREA
AND THE FLOODING THREAT HAS ENDED. BE CAUTIOUS WHILE DRIVING...
ESPECIALLY NEAR SMALL CREEKS AND STREAMS WHERE WATER MAY STILL BE
HIGH.
LAT...LON 3625 7954 3590 7954 3592 8004 3593 8005
3626 8003
$$
10The office that day
Everything else NWS Raleigh, NC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 2, 8:20 PM EDT | Special Weather Statement | RAH | Alamance, Orange | 85 min |
| Sep 2, 8:28 PM EDT | Severe Thunderstorm Warning | RAH | Alamance, Durham, Orange, Person | 53 min |
| Sep 2, 8:42 PM EDT | Tornado Warning | RAH | Durham, Orange, Person | 33 min |
| Sep 2, 9:20 PM EDT | Special Weather Statement | RAH | Granville, Vance | 55 min |
| Sep 2, 9:43 PM EDT | Special Weather Statement | RAH | Chatham, Durham, Lee, Moore, Orange | 62 min |
| Sep 2, 10:26 PM EDT | Special Weather Statement | RAH | Lee, Wake | 94 min |
| Sep 2, 11:09 PM EDT | Special Weather Statement | RAH | Franklin, Granville, Nash, Wake | 51 min |
| Sep 2, 11:42 PM EDT | Areal Flood Advisory | RAH | Wake | 108 min |
| Sep 3, 2:35 AM EDT | Areal Flood Advisory | RAH | Montgomery, Richmond | 99 min |
| Sep 3, 1:00 PM EDT | Special Weather Statement | RAH | Davidson, Forsyth, Guilford, Randolph | 90 min |
| Sep 3, 1:01 PM EDT | Flash Flood Warning | RAH | Forsyth | 3 hr |
| Sep 3, 1:06 PM EDT | Special Weather Statement | RAH | Anson, Montgomery, Stanly | 84 min |
| Sep 3, 1:09 PM EDT | Areal Flood Advisory | RAH | Stanly | 3 hr |
| Sep 3, 1:18 PM EDT | Flash Flood Warning | RAH | Stanly | 3 hr |
| Sep 3, 1:21 PM EDT | Severe Thunderstorm Warning | RAH | Forsyth, Guilford | 39 min |
| Sep 3, 1:27 PM EDT | Severe Thunderstorm Warning | RAH | Montgomery, Randolph, Stanly | 48 min |
| Sep 3, 2:23 PM EDT | Areal Flood Advisory | RAH | Guilford | 3 hr |
| Sep 3, 2:35 PM EDT | Special Weather Statement | RAH | Anson, Montgomery, Moore, Richmond, Stanly | 85 min |
| Sep 3, 2:38 PM EDT | Special Weather Statement | RAH | Davidson, Forsyth, Guilford, Randolph | 97 min |
| Sep 3, 3:34 PM EDT | Areal Flood Advisory | RAH | Randolph | 2 hr |
| Sep 3, 3:59 PM EDT | Special Weather Statement | RAH | Hoke, Lee, Moore, Richmond, Scotland | 91 min |
| Sep 3, 4:03 PM EDT | Special Weather Statement | RAH | Alamance, Chatham, Orange | 87 min |
| Sep 3, 4:14 PM EDT | Flash Flood Warning | RAH | Stanly | 2 hr |
| Sep 3, 4:17 PM EDT | Severe Thunderstorm Warning | RAH | Alamance, Orange | 58 min |
| Sep 3, 4:52 PM EDT | Areal Flood Advisory | RAH | Alamance, Orange | 2 hr |
| Sep 3, 4:57 PM EDT | Severe Thunderstorm Warning | RAH | Richmond, Scotland | 48 min |
| Sep 3, 5:40 PM EDT | Areal Flood Advisory | RAH | Durham, Orange | 3 hr |
| Sep 3, 5:41 PM EDT | Special Weather Statement | RAH | Wake | 64 min |
| Sep 3, 5:49 PM EDT | Special Weather Statement | RAH | Wilson | 56 min |
| Sep 3, 6:21 PM EDT | Special Weather Statement | RAH | Durham | 54 min |
| Sep 3, 7:41 PM EDT | Special Weather Statement | RAH | Wake | 64 min |
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.