Alert archive / North Carolina / Flash Flood Warnings in 2012
Flash Flood Warning 28, NWS Raleigh, NC
NWS Raleigh, NC issued this flash flood warning at Aug 11, 2012, 7:33 PM EDT for Davidson County, Guilford County, Randolph County, North Carolina. It was in force for 3 hr. 4 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
- Aug 11, 2012, 7:33 PM EDT (23:33 UTC)
- Expired
- Aug 11, 2012, 10:30 PM EDT
- In force
- 3 hr
- Issued by
- NWS Raleigh, NC
- Area
- Storm-based polygon
- Flood severity
- None
Counties Davidson County, NC, Guilford County, NC, Randolph County, NC
The radar
The Roanoke radar (KFCX), 131 km from the middle of the area, began a volume at 23:34 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 11, 9:00 PM EDT | FLASH FLOOD | 1 S Gordontown, NC | SIGNIFICANT FLOODING... WITH WATER ENTERING VEHICLES IN AN AREA OF 150 FT WIDE FLOODWATERS... AT 9400 OLD US HWY 64. |
| Aug 11, 9:15 PM EDT | FLASH FLOOD | 1 S Gordontown, NC | RESIDENCE FLOODED... WHICH REQUIRED A WATER RESCUE... AT 3140 NEW CUT RD. |
| Aug 11, 9:15 PM EDT | FLASH FLOOD | 2 Se Gordontown, NC | OLD US HWY 64 AND NC 109 INTERSECTION COMPLETELY SUBMERGED. |
| Aug 11, 10:25 PM EDT | FLASH FLOOD | 3 Ssw Gordontown, NC | WATER RESCUES AT 2550 AND 2560 REGAN RD. HOMES SURROUNDED BY FLOOD WATERS. |
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, 11.6 hours before the alert went out and 37 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
- 509 J/kg
- Mixed-layer CIN
- -59 J/kg
- Mixed-layer LCL
- 762 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 31 m²/s²
- 0-3 km storm-relative helicity
- 62 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
454
WGUS52 KRAH 112333
FFWRAH
NCC057-081-151-120230-
/O.NEW.KRAH.FF.W.0028.120811T2333Z-120812T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE RALEIGH NC
733 PM EDT SAT AUG 11 2012
THE NATIONAL WEATHER SERVICE IN RALEIGH HAS ISSUED A
* FLASH FLOOD WARNING FOR...
DAVIDSON COUNTY IN CENTRAL NORTH CAROLINA
GUILFORD COUNTY IN CENTRAL NORTH CAROLINA
RANDOLPH COUNTY IN CENTRAL NORTH CAROLINA
* UNTIL 1030 PM EDT
* AT 730 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
ADDITIONAL HEAVY RAIN FROM THUNDERSTORMS DEVELOPING FROM LEXINGTON
TO HIGH POINT TO GREENSBORO... FALLING OVER SATURATED GROUND. THIS
WILL PRODUCE RAPID RUNOFF. DOPPLER RADAR ESTIMATED THAT RAINFALL
RATES IN EXCESS OF 2 INCHES PER HOUR WERE FALLING OVER AN AREA THAT
HAD RECEIVED VERY HEAVY RAIN FALL EARLIER TODAY.
* LOCATIONS THREATENED WITH FLOODING INCLUDE MCLEANSVILLE...HIGH
POINT...GREENSBORO...THOMASVILLE...LEXINGTON...RANDLEMAN...ASHEBORO
AND LINWOOD.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
NEVER DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROAD.
AS LITTLE AS 6 INCHES OF WATER CAN CAUSE YOU TO LOSE CONTROL OF YOUR
VEHICLE.
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 3583 8047 3586 8042 3585 8039 3589 8042
3589 8037 3598 8040 3600 8022 3603 8018
3601 8005 3606 8004 3617 7954 3584 7954
3569 7964 3565 7985 3562 8026 3568 8034
3572 8034 3572 8041 3575 8046 3579 8048
$$
BADGETT2 follow-up statements
398
WGUS72 KRAH 120004
FFSRAH
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
804 PM EDT SAT AUG 11 2012
NCC057-081-151-120230-
/O.CON.KRAH.FF.W.0028.000000T0000Z-120812T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
DAVIDSON NC-GUILFORD NC-RANDOLPH NC-
804 PM EDT SAT AUG 11 2012
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1030 PM EDT FOR
NORTHERN RANDOLPH...SOUTHERN GUILFORD AND DAVIDSON COUNTIES...
AT 802 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE ADDITIONAL HEAVY RAIN FALLING OVER SATURATED GROUND IN
NORTHERN RANDOLPH...SOUTHERN GUILFORD AND DAVIDSON COUNTIES. DOPPLER
RADAR ESTIMATED THAT RAINFALL RATES CONTINUE AT 1.5 TO 2 INCHES PER
HOUR. THIS RAIN WAS FALLING ON SATURATED GROUND PRODUCING RAPID
RUNOFF.
LOCATIONS THREATENED BY FLOODING INCLUDE BUT ARE NOT LIMITED TO
THOMASVILLE... LEXINGTON... HIGH POINT... GREENSBORO...
MCLEANSVILLE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
NEVER DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROAD.
AS LITTLE AS 6 INCHES OF WATER CAN CAUSE YOU TO LOSE CONTROL OF YOUR
VEHICLE.
TURN AROUND...DONT DROWN.
PLEASE REPORT FLOODING TO THE NATIONAL WEATHER SERVICE BY CALLING...
1...8 7 7...6 3 3...6 7 7 2 OR NOTIFY YOUR LOCAL LAW ENFORCEMENT
AGENCY.
&&
LAT...LON 3583 8047 3586 8042 3585 8039 3589 8042
3589 8037 3596 8026 3599 8014 3596 8019
3597 8005 3606 8002 3616 7955 3583 7954
3569 7964 3565 7984 3562 8026 3568 8034
3572 8034 3572 8041 3575 8046
$$
BADGETT002
WGUS72 KRAH 120130
FFSRAH
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
930 PM EDT SAT AUG 11 2012
NCC057-081-151-120230-
/O.CON.KRAH.FF.W.0028.000000T0000Z-120812T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
DAVIDSON NC-GUILFORD NC-RANDOLPH NC-
930 PM EDT SAT AUG 11 2012
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1030 PM EDT FOR
NORTHERN RANDOLPH...SOUTHEASTERN GUILFORD AND CENTRAL DAVIDSON
COUNTIES...
AT 926 PM... A VERY DANGEROUS FLOODING SITUATION CONTINUED ACROSS
CENTRAL DAVIDSON... SOUTHWEST GUILFORD AND NORTHWEST RANDOLPH
COUNTIES. THE SILVER VALLEY FIRE DEPARTMENT IN CENTRAL DAVIDSON
COUNTY REPORTED AT LEAST ONE WATER RESCUE UNDERWAY DUE TO FLOODING
NEAR GORDONTOWN. SEVERAL ROADS WERE FLOODED INCLUDING PORTIONS OF
HIGHWAY 109.
NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE
ADDITIONAL HEAVY RAIN FALLING OVER SATURATED GROUND FROM CENTRAL
DAVIDSON COUNTY... NORTHEAST ACROSS RANDOLPH COUNTY AND INTO
SOUTHERN GUILFORD COUNTY. DOPPLER RADAR ESTIMATED THAT 4 TO 6 INCHES
OF RAIN HAD FALLEN ACROSS CENTRAL DAVIDSON COUNTY NORTHEAST ACROSS
HIGH POINT. LOCALLY AS MUCH AS 8 TO 9 INCHES OF RAIN HAD FALLEN
BETWEEN HIGH POINT AND ARCHDALE.
LOCATIONS THREATENED BY FLOODING INCLUDE BUT ARE NOT LIMITED TO
GORDONTOWN... LEXINGTON... TRINITY...PLEASANT
GARDEN...CLIMAX...LIBERTY AND ARCHDALE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.
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 3579 8038 3584 8027 3585 8031 3586 8022
3590 8012 3587 8014 3587 8013 3594 7988
3601 7955 3582 7954 3569 7964 3565 7983
3562 8026 3568 8034 3572 8034 3572 8041
$$
BADGETTThe office that day
Everything else NWS Raleigh, NC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 10, 11:32 PM EDT | Special Weather Statement | RAH | Forsyth | 43 min |
| Aug 11, 1:01 AM EDT | Special Weather Statement | RAH | Forsyth | 59 min |
| Aug 11, 2:15 AM EDT | Special Weather Statement | RAH | Forsyth | 30 min |
| Aug 11, 4:21 AM EDT | Special Weather Statement | RAH | Davidson | 24 min |
| Aug 11, 4:48 AM EDT | Special Weather Statement | RAH | Guilford | 12 min |
| Aug 11, 5:35 AM EDT | Special Weather Statement | RAH | Person | 40 min |
| Aug 11, 6:11 AM EDT | Special Weather Statement | RAH | Person | 49 min |
| Aug 11, 6:44 AM EDT | Special Weather Statement | RAH | Vance | 46 min |
| Aug 11, 12:03 PM EDT | Special Weather Statement | RAH | Wilson | 57 min |
| Aug 11, 12:44 PM EDT | Special Weather Statement | RAH | Wayne | 61 min |
| Aug 11, 12:59 PM EDT | Special Weather Statement | RAH | Franklin, Halifax, Warren | 61 min |
| Aug 11, 1:05 PM EDT | Special Weather Statement | RAH | Alamance | 55 min |
| Aug 11, 1:13 PM EDT | Tornado Warning | RAH | Halifax, Nash | 25 min |
| Aug 11, 1:33 PM EDT | Special Weather Statement | RAH | Orange, Person | 57 min |
| Aug 11, 1:59 PM EDT | Special Weather Statement | RAH | Granville, Orange | 61 min |
| Aug 11, 2:08 PM EDT | Severe Thunderstorm Warning | RAH | Granville, Vance | 52 min |
| Aug 11, 2:26 PM EDT | Severe Thunderstorm Warning | RAH | Durham, Granville, Orange, Person, Vance | 50 min |
| Aug 11, 2:50 PM EDT | Special Weather Statement | RAH | Franklin, Warren | 55 min |
| Aug 11, 3:19 PM EDT | Special Weather Statement | RAH | Alamance, Durham, Granville, Orange, Person, Vance | 56 min |
| Aug 11, 3:29 PM EDT | Special Weather Statement | RAH | Sampson | 61 min |
| Aug 11, 3:30 PM EDT | Flash Flood Warning | RAH | Davidson, Guilford, Randolph | 3 hr |
| Aug 11, 3:42 PM EDT | Special Weather Statement | RAH | Franklin, Warren | 63 min |
| Aug 11, 4:07 PM EDT | Areal Flood Advisory | RAH | Franklin, Halifax, Warren | 3 hr |
| Aug 11, 4:07 PM EDT | Special Weather Statement | RAH | Edgecombe, Halifax, Johnston, Nash, Wayne, Wilson | 83 min |
| Aug 11, 4:36 PM EDT | Areal Flood Advisory | RAH | Nash, Wayne, Wilson | 3 hr |
| Aug 11, 4:36 PM EDT | Severe Thunderstorm Warning | RAH | Johnston, Wayne, Wilson | 69 min |
| Aug 11, 5:13 PM EDT | Tornado Warning | RAH | Edgecombe, Wilson | 62 min |
| Aug 11, 5:15 PM EDT | Areal Flood Advisory | RAH | Edgecombe, Halifax, Wilson | 3 hr |
| Aug 11, 5:58 PM EDT | Special Weather Statement | RAH | Forsyth | 32 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.