Alert archive / North Carolina / Flash Flood Warnings in 2012
Flash Flood Warning 45, NWS Raleigh, NC
NWS Raleigh, NC issued this flash flood warning at Sep 6, 2012, 4:29 PM EDT for Franklin County, Wake County, North Carolina. It was in force for 3 hr. 6 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 6, 2012, 4:29 PM EDT (20:29 UTC)
- Expired
- Sep 6, 2012, 7:00 PM EDT
- In force
- 3 hr
- Issued by
- NWS Raleigh, NC
- Area
- Storm-based polygon
- Flood severity
- None
Counties Franklin County, NC, Wake County, NC
The radar
The Raleigh/Durham radar (KRAX), 30 km from the middle of the area, began a volume at 20:30 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 6, 4:35 PM EDT | HEAVY RAIN 1.75 | 5 Ssw Rolesville, NC | 1.75 INCHES FELL IN 30 MINUTES ON ARDEN BRANCH LANE |
| Sep 6, 4:55 PM EDT | FLASH FLOOD | 3 Se Raleigh, NC | ROAD CLOSURE DUE TO HIGH WATER NEAR THE INTERSECTION OF RALEIGH BLVD AND NEW BERN AVE. ALSO RECEIVING REPORTS OF VEHICLES STALLED IN FLOODED ROADWAYS IN THE SAME GENERAL AREA. |
| Sep 6, 4:58 PM EDT | HEAVY RAIN 1.16 | 4 Sw Raleigh, NC | FELL IN 30 MINUTES... STILL RAINING |
| Sep 6, 5:35 PM EDT | FLASH FLOOD | 3 Ne Raleigh, NC | TRAINED SPOTTER REPORTED FLOODING OCCURRING AT ATLANTIC AVE AND HARROD ST. ESTIMATES APPROX 2FT OF WATER ON ROADWAY. |
| Sep 6, 5:50 PM EDT | FLASH FLOOD | 1 Se Raleigh, NC | HIGH WATER REPORTED ALONG CAPITAL BLVD NEAR WAKE FOREST RD. |
| Sep 6, 5:50 PM EDT | FLASH FLOOD | 2 S Raleigh, NC | WATER UP TO THE HOOD OF CARS IN A PARKING LOT AT THE INTERSECTION OF PEACE ST AND WILMINGTON ST |
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, 8.5 hours before the alert went out and 119 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
- 843 J/kg
- Mixed-layer CIN
- -23 J/kg
- Mixed-layer LCL
- 721 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 78 m²/s²
- 0-3 km storm-relative helicity
- 27 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.9
The text
As transmitted, in the capitals the NWS used until 2016.
497
WGUS52 KRAH 062029
FFWRAH
NCC069-183-062300-
/O.NEW.KRAH.FF.W.0045.120906T2029Z-120906T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE RALEIGH NC
429 PM EDT THU SEP 6 2012
THE NATIONAL WEATHER SERVICE IN RALEIGH HAS ISSUED A
* FLASH FLOOD WARNING FOR...
FRANKLIN COUNTY IN CENTRAL NORTH CAROLINA
WAKE COUNTY IN CENTRAL NORTH CAROLINA
* UNTIL 700 PM EDT
* AT 425 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THUNDERSTORMS WITH VERY HEAVY RAIN PRODUCING FLOODING OVER WAKE AND
SOUTHERN FRANKLIN COUNTIES. DOPPLER RADAR ESTIMATED THAT UP TO TWO
INCHES OF RAIN HAS FALLEN OVER PORTIONS OF NORTHERN WAKE
COUNTY....INCLUDING THE URBAN AREAS OF RALEIGH. ADDITIONAL HEAVY
RAINFALL FROM TRAINING THUNDERSTORMS WILL CONTINUE INTO SOUTHERN
FRANKLIN COUNTY.
* LOCATIONS THREATENED WITH FLOODING INCLUDE BUNN...WAKE FOREST...RDU
INTERNATIONAL...RALEIGH...GARNER AND CARY.
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 3602 7854 3605 7813 3602 7813 3582 7825
3571 7847 3563 7857 3565 7890 3587 7884
3593 7881 3592 7876 3598 7871 3601 7870
3603 7875 3608 7874 3607 7868
$$
224 follow-up statements
230
WGUS72 KRAH 062049
FFSRAH
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
449 PM EDT THU SEP 6 2012
NCC069-183-062300-
/O.CON.KRAH.FF.W.0045.000000T0000Z-120906T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
FRANKLIN NC-WAKE NC-
449 PM EDT THU SEP 6 2012
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 700 PM EDT FOR WAKE
AND SOUTHERN FRANKLIN COUNTIES...
AT 439 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE THUNDERSTORMS WITH VERY HEAVY RAIN OVER WAKE AND SOUTHERN
FRANKLIN COUNTIES. DOPPLER RADAR ESTIMATED THAT OVER TWO INCHES OF
RAIN HAS FALLEN OVER PORTIONS OF NORTHERN WAKE COUNTY. THUNDERSTORMS
WILL CONTINUE TO MOVE SLOWLY AND TRAIN ACROSS EASTERN WAKE COUNTY
AND SOUTHERN FRANKLIN COUNTY.
SPOTTERS HAVE REPORTED AS MUCH 1.25 TO 1.75 INCHES OF RAIN IN LESS
THAN 30 MINUTES IN THE URBAN AREA OF RALEIGH.
LOCATIONS THREATENED BY FLOODING INCLUDE BUT ARE NOT LIMITED TO
BUNN...PILOT...WAKE FOREST AND WENDELL.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES
AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.
PLEASE REPORT FLOODING TO THE NATIONAL WEATHER SERVICE BY CALLING...
1...8 7 7...6 3 3...6 7 7 2 OR NOTIFY YOUR LOCAL LAW ENFORCEMENT
AGENCY.
&&
LAT...LON 3602 7854 3605 7813 3602 7813 3582 7825
3571 7847 3563 7857 3565 7890 3587 7884
3593 7881 3592 7876 3598 7871 3601 7870
3603 7875 3608 7874 3607 7868
$$
22500
WGUS72 KRAH 062105
FFSRAH
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
505 PM EDT THU SEP 6 2012
NCC069-183-062300-
/O.CON.KRAH.FF.W.0045.000000T0000Z-120906T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
FRANKLIN NC-WAKE NC-
505 PM EDT THU SEP 6 2012
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 700 PM EDT FOR WAKE
AND SOUTHERN FRANKLIN COUNTIES...
AT 457 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE THUNDERSTORMS WITH VERY HEAVY RAIN OVER WAKE AND SOUTHERN
FRANKLIN COUNTIES. DOPPLER RADAR ESTIMATED THAT OVER TWO INCHES OF
RAIN HAS FALLEN OVER PORTIONS OF NORTHERN AND EASTERN WAKE COUNTY.
THUNDERSTORMS WILL CONTINUE TO MOVE SLOWLY AND TRAIN ACROSS EASTERN
WAKE COUNTY AND SOUTHERN FRANKLIN COUNTY.
THERE HAVE BEEN SEVERAL REPORTS OF RAINFALL RATES OF AROUND THREE
INCHES PER HOUR. HIGH WATER RESCUES AND ROAD CLOSURES HAVE ALSO
BEEN REPORTED ALONG NEW BERN AVENUE IN EAST RALEIGH.
LOCATIONS THREATENED BY FLOODING INCLUDE BUT ARE NOT LIMITED TO
RALEIGH...WENDELL...ZEBULON...PILOT AND BUNN.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES
AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.
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 3602 7854 3605 7813 3602 7813 3582 7825
3571 7847 3563 7857 3565 7890 3587 7884
3593 7881 3592 7876 3598 7871 3601 7870
3603 7875 3608 7874 3607 7868
$$
22921
WGUS72 KRAH 062216
FFSRAH
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
616 PM EDT THU SEP 6 2012
NCC069-062219-
/O.CAN.KRAH.FF.W.0045.000000T0000Z-120906T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
FRANKLIN NC-
616 PM EDT THU SEP 6 2012
...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR SOUTHERN FRANKLIN
COUNTY...
NO FLOODING HAS BEEN REPORTED AND THE HEAVY RAIN THAT PROMPTED THE
WARNING HAS MOVED OUT OF THE AREA. THUS...THE FLASH FLOOD WARNING
HAS BEEN CANCELED.
LAT...LON 3598 7844 3594 7839 3593 7835 3591 7835
3588 7829 3583 7826 3582 7826 3571 7847
3563 7857 3573 7882 3605 7862
$$
NCC183-062300-
/O.CON.KRAH.FF.W.0045.000000T0000Z-120906T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WAKE NC-
616 PM EDT THU SEP 6 2012
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 700 PM EDT FOR WAKE
COUNTY...
AT 607 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE SHOWERS WITH LIGHT TO MODERATE RAINFALL OVER WAKE COUNTY.
THERE HAVE BEEN SEVERAL REPORTS OF FLOODING...STRANDED VEHICLES AND
WATER RESCUES. THE WORST FLOODING REPORTS HAVE BEEN FROM ATLANTIC
AVENUE...PEACE STREET...AND NEW BERN AVENUE IN AND AROUND THE
DOWNTOWN AREA OF RALEIGH. WHILE THE HEAVIEST SHOWERS AND STORMS
HAVE MOVED OUT OF THE AREA...THE FLASH FLOOD WARNING WILL CONTINUE
UNTIL 700 PM WHILE THE HIGH WATER RECEDES.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES
AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.
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 3598 7844 3594 7839 3593 7835 3591 7835
3588 7829 3583 7826 3582 7826 3571 7847
3563 7857 3573 7882 3605 7862
$$
22060
WGUS72 KRAH 062257
FFSRAH
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
657 PM EDT THU SEP 6 2012
NCC183-062301-
/O.EXP.KRAH.FF.W.0045.000000T0000Z-120906T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WAKE NC-
657 PM EDT THU SEP 6 2012
...THE FLASH FLOOD WARNING WILL EXPIRE AT 700 PM EDT FOR WAKE
COUNTY...
THE HEAVY RAIN THAT CAUSED FLOODING IN AND AROUND THE EASTERN
PORTIONS OF DOWNTOWN RALEIGH HAS MOVED SOUTH OF WAKE COUNTY...AND NO
ADDITIONAL RAINFALL IS EXPECTED. WATER LEVELS ALONG CRABTREE CREEK
CONTINUE TO BE HIGH BUT WITHIN THE BANKS. THE RALEIGH POLICE
DEPARTMENT REPORTS IMPROVED CONDITIONS ALONG THE ROADWAYS THAT WERE
CLOSED EARLIER. THUS...THE FLASH FLOOD WARNING WILL BE ALLOWED TO
EXPIRE.
PEOPLE IN THE DOWNTOWN AREA ARE STILL URGED TO BE CAUTIOUS
NEAR CREEKS AND STREAMS...OR OTHER LOW LYING AREAS WHERE WATER MAY
STILL BE HIGH.
LAT...LON 3598 7844 3594 7839 3593 7835 3591 7835
3588 7829 3583 7826 3582 7826 3571 7847
3563 7857 3573 7882 3605 7862
$$
22The office that day
Everything else NWS Raleigh, NC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 6, 1:18 PM EDT | Special Weather Statement | RAH | Granville, Halifax, Person, Vance, Warren | 57 min |
| Sep 6, 1:37 PM EDT | Special Weather Statement | RAH | Granville, Halifax, Person, Vance, Warren | 53 min |
| Sep 6, 2:24 PM EDT | Special Weather Statement | RAH | Granville, Halifax, Vance, Warren | 96 min |
| Sep 6, 2:39 PM EDT | Areal Flood Advisory | RAH | Halifax | 3 hr |
| Sep 6, 3:42 PM EDT | Special Weather Statement | RAH | Wake | 63 min |
| Sep 6, 4:05 PM EDT | Areal Flood Advisory | RAH | Durham, Orange | 3 hr |
| Sep 6, 4:22 PM EDT | Areal Flood Advisory | RAH | Wake | 3 hr |
| Sep 6, 4:22 PM EDT | Flash Flood Warning | RAH | Orange | 2 hr |
| Sep 6, 4:30 PM EDT | Severe Thunderstorm Warning | RAH | Johnston, Wake | 60 min |
| Sep 6, 4:43 PM EDT | Special Weather Statement | RAH | Chatham | 17 min |
| Sep 6, 4:50 PM EDT | Special Weather Statement | RAH | Lee | 10 min |
| Sep 6, 5:34 PM EDT | Special Weather Statement | RAH | Johnston | 56 min |
| Sep 6, 5:40 PM EDT | Severe Thunderstorm Warning | RAH | Johnston, Sampson, Wayne | 52 min |
| Sep 6, 6:37 PM EDT | Special Weather Statement | RAH | Cumberland | 53 min |
| Sep 6, 7:23 PM EDT | Areal Flood Advisory | RAH | Cumberland | 3 hr |
| Sep 6, 7:43 PM EDT | Flash Flood Warning | RAH | Cumberland | 76 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.