Alert archive / North Carolina / Flash Flood Warnings in 2016
Flash Flood Warning 22, NWS Raleigh, NC
NWS Raleigh, NC issued this flash flood warning at Aug 7, 2016, 1:26 PM EDT for Chatham County, Durham County, Wake 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
- Aug 7, 2016, 1:26 PM EDT (17:26 UTC)
- Expired
- Aug 7, 2016, 4:30 PM EDT
- In force
- 3 hr
- Issued by
- NWS Raleigh, NC
- Area
- Storm-based polygon
- Flood severity
- None
Counties Chatham County, NC, Durham County, NC, Wake County, NC
The radar
The Raleigh/Durham radar (KRAX), 45 km from the middle of the area, began a volume at 17:29 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 7, 1:35 PM EDT | FLOOD | 1 Ne Holly Springs, NC | WATER COVERERING LOCKLEY RD. |
| Aug 7, 2:10 PM EDT | HEAVY RAIN 2 | Holly Springs, NC | RAIN SO FAR TODAY |
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, 5.4 hours before the alert went out and 92 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
- 405 J/kg
- Mixed-layer CIN
- -76 J/kg
- Mixed-layer LCL
- 820 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 12 m²/s²
- 0-3 km storm-relative helicity
- 42 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
910
WGUS52 KRAH 071726
FFWRAH
NCC037-063-183-072030-
/O.NEW.KRAH.FF.W.0022.160807T1726Z-160807T2030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE RALEIGH NC
126 PM EDT SUN AUG 7 2016
THE NATIONAL WEATHER SERVICE IN RALEIGH HAS ISSUED A
* FLASH FLOOD WARNING FOR...
CENTRAL CHATHAM COUNTY IN CENTRAL NORTH CAROLINA...
WAKE COUNTY IN CENTRAL NORTH CAROLINA...
SOUTHERN DURHAM COUNTY IN CENTRAL NORTH CAROLINA...
* UNTIL 430 PM EDT
* AT 125 PM EDT...DOPPLER RADAR INDICATED A SLOW MOVING THUNDERSTORM
PRODUCING FLOODING ACROSS THE WARNED AREA. ONE TO TWO INCHES OF
RAIN HAVE ALREADY FALLEN IN SOME LOCATIONS. FLASH FLOODING IS
EXPECTED TO BEGIN SHORTLY.
* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
RALEIGH...DURHAM...CARY...PITTSBORO...WAKE FOREST...GARNER...
FUQUAY-VARINA...GOLDSTON...RDU INTERNATIONAL AND APEX.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.
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...DO NOT DROWN.
&&
LAT...LON 3607 7878 3608 7869 3601 7850 3570 7848
3552 7871 3558 7891 3554 7896 3554 7902
3559 7905 3563 7912 3555 7921 3557 7922
3557 7924 3555 7925 3556 7946 3573 7940
3573 7904 3599 7894 3609 7881
$$
102 follow-up statements
473
WGUS72 KRAH 071807
FFSRAH
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
207 PM EDT SUN AUG 7 2016
NCC063-071816-
/O.CAN.KRAH.FF.W.0022.000000T0000Z-160807T2030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
DURHAM NC-
207 PM EDT SUN AUG 7 2016
...THE FLASH FLOOD WARNING FOR SOUTHERN DURHAM COUNTY IS CANCELLED...
FLOODING IS NO LONGER EXPECTED TO POSE A THREAT. PLEASE CONTINUE TO
HEED ANY REMAINING ROAD CLOSURES.
LAT...LON 3601 7850 3570 7848 3552 7871 3558 7891
3554 7896 3554 7902 3563 7912 3556 7920
3556 7946 3573 7940 3573 7895 3587 7890
3587 7883 3592 7881 3592 7876 3597 7871
3601 7870 3603 7875 3607 7875 3608 7869
$$
NCC037-183-072030-
/O.CON.KRAH.FF.W.0022.000000T0000Z-160807T2030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CHATHAM NC-WAKE NC-
207 PM EDT SUN AUG 7 2016
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 430 PM EDT FOR
SOUTHERN CHATHAM AND WAKE COUNTIES...
AT 206 PM EDT...DOPPLER RADAR INDICATED SLOW MOVING THUNDERSTORMS
PRODUCING FLOODING OVER THE WARNED AREA. UP TO THREE INCHES OF RAIN
HAVE ALREADY FALLEN OVER HOLLY SPRINGS. THE AREA OF HEAVIEST RAIN IS
NOW OVER FUQUAY-VARINA. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.
SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
RALEIGH...CARY...PITTSBORO...WAKE FOREST...GARNER...FUQUAY-VARINA...
GOLDSTON...RDU INTERNATIONAL...APEX AND HOLLY SPRINGS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.
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.
&&
LAT...LON 3601 7850 3570 7848 3552 7871 3558 7891
3554 7896 3554 7902 3563 7912 3556 7920
3556 7946 3573 7940 3573 7895 3587 7890
3587 7883 3592 7881 3592 7876 3597 7871
3601 7870 3603 7875 3607 7875 3608 7869
$$
10936
WGUS72 KRAH 071918
FFSRAH
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
318 PM EDT SUN AUG 7 2016
NCC037-183-071927-
/O.CAN.KRAH.FF.W.0022.000000T0000Z-160807T2030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CHATHAM NC-WAKE NC-
318 PM EDT SUN AUG 7 2016
...THE FLASH FLOOD WARNING FOR SOUTHERN CHATHAM AND WAKE COUNTIES IS
CANCELLED...
RAIN HAS MOVED OUT OF THE WARNING AREA AND FLOODING IS NO LONGER
EXPECTED TO POSE A THREAT. PLEASE CONTINUE TO HEED ANY REMAINING
ROAD CLOSURES.
LAT...LON 3601 7850 3570 7848 3552 7871 3558 7891
3554 7896 3554 7902 3563 7912 3556 7920
3556 7946 3573 7940 3573 7895 3587 7890
3587 7883 3592 7881 3592 7876 3597 7871
3601 7870 3603 7875 3607 7875 3608 7869
$$
23The office that day
Everything else NWS Raleigh, NC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 7, 12:45 AM EDT | Special Weather Statement | RAH | Alamance, Guilford, Person | 75 min |
| Aug 7, 1:53 AM EDT | Special Weather Statement | RAH | Guilford | 67 min |
| Aug 7, 2:29 AM EDT | Areal Flood Advisory | RAH | Guilford | 2 hr |
| Aug 7, 12:15 PM EDT | Special Weather Statement | RAH | Stanly | 45 min |
| Aug 7, 12:33 PM EDT | Special Weather Statement | RAH | Stanly | 42 min |
| Aug 7, 12:53 PM EDT | Areal Flood Advisory | RAH | Stanly | 3 hr |
| Aug 7, 1:08 PM EDT | Flash Flood Warning | RAH | Stanly | 3 hr |
| Aug 7, 1:12 PM EDT | Areal Flood Advisory | RAH | Chatham, Durham, Orange, Wake | 3 hr |
| Aug 7, 1:53 PM EDT | Areal Flood Advisory | RAH | Johnston, Wayne | 3 hr |
| Aug 7, 2:48 PM EDT | Flash Flood Warning | RAH | Harnett, Johnston, Wayne | 3 hr |
| Aug 7, 4:09 PM EDT | Areal Flood Advisory | RAH | Moore | 2 hr |
| Aug 7, 4:49 PM EDT | Special Weather Statement | RAH | Cumberland, Hoke, Sampson | 41 min |
| Aug 7, 5:04 PM EDT | Special Weather Statement | RAH | Chatham | 41 min |
| Aug 7, 5:05 PM EDT | Areal Flood Advisory | RAH | Cumberland, Hoke, Sampson | 115 min |
| Aug 7, 5:11 PM EDT | Special Weather Statement | RAH | Anson, Richmond, Scotland | 79 min |
| Aug 7, 5:18 PM EDT | Flash Flood Warning | RAH | Cumberland | 117 min |
| Aug 7, 5:33 PM EDT | Flash Flood Warning | RAH | Hoke | 3 hr |
Nearby
Flash Flood Warnings in North Carolina, 2016Every flash flood warning in 2016
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.