Alert archive / North Carolina / Flash Flood Warnings in 2011

Flash Flood Warning 21, NWS Raleigh, NC

July 7, 2011Stanly County, North Carolina

NWS Raleigh, NC issued this flash flood warning at Jul 7, 2011, 5:22 PM EDT for Stanly County, North Carolina. It was in force for 93 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jul 7, 2011, 5:22 PM EDT (21:22 UTC)
Expired: Jul 7, 2011, 6:55 PM EDT
In force: 93 min
Issued by: NWS Raleigh, NC
Area: Storm-based polygon
Flood severity: None

County Stanly County, NC

The radar

The Raleigh/Durham radar (KRAX), 162 km from the middle of the area, began a volume at 21:23 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.

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 9.4 hours before the alert went out and 96 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 852 J/kg
Mixed-layer CIN: -58 J/kg
Mixed-layer LCL: 818 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: 31 m²/s²
0-3 km storm-relative helicity: 18 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

301 
WGUS52 KRAH 072122
FFWRAH
NCC167-080015-
/O.NEW.KRAH.FF.W.0021.110707T2122Z-110708T0015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE RALEIGH NC
522 PM EDT THU JUL 7 2011

THE NATIONAL WEATHER SERVICE IN RALEIGH HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  STANLY COUNTY IN CENTRAL NORTH CAROLINA

* UNTIL 815 PM EDT

* AT 518 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  THUNDERSTORMS WITH VERY HEAVY RAIN PRODUCING FLOODING OVER         
  STANLY COUNTY. DOPPLER RADAR ESTIMATED THAT UP TO THREE INCHES OF  
  RAIN HAS FALLEN OVER STANLY COUNTY WITH MORE HEAVY RAIN EXPECTED   
  OVER THE NEXT COUPLE OF HOURS.

* LOCATIONS THREATENED WITH FLOODING INCLUDE PLYLER AND ALBEMARLE.

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. TWO FEET OF RUSHING WATER CAN CARRY AWAY MOST VEHICLES
INCLUDING SPORT UTILITY VEHICLES AND PICKUP TRUCKS. TURN AROUND...
DONT DROWN.

FLASH FLOODING IS EXTREMELY DANGEROUS. NUMEROUS ROADS AND LOW LYING
AREAS WILL QUICKLY FLOOD. FLOOD WATERS WILL ALSO THREATEN SOME HOMES
AND BUSINESSES. IF YOU ARE EXPERIENCING FLOODING OR LIVE IN A FLOOD
PRONE AREA MOVE TO HIGHER GROUND.

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 3519 8051 3551 8029 3551 8019 3546 8011
      3540 8009 3537 8005 3528 8010 3524 8010
      3518 8005 3515 8007 3519 8011 3516 8017
      3515 8016 3517 8020 3515 8021 3521 8025
      3516 8039 3516 8046

$$

ELLIS

1 follow-up statement

383 
WGUS72 KRAH 072255
FFSRAH

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
655 PM EDT THU JUL 7 2011

NCC167-072304-
/O.CAN.KRAH.FF.W.0021.000000T0000Z-110708T0015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
STANLY NC-
655 PM EDT THU JUL 7 2011

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR STANLY COUNTY...

THE TRAINING STORMS THAT PRODUCED 3 TO 4 INCHES OF RAINFALL ACROSS
PORTIONS OF STANLY COUNTY HAVE MOVED OUT OF THE COUNTY. THERE THE 
FLOODING THREAT HAS ENDED AND THE FLASH WARNING WILL BE CANCELLED.

LAT...LON 3519 8051 3551 8029 3551 8019 3546 8011
      3540 8009 3537 8005 3528 8010 3524 8010
      3518 8005 3515 8007 3519 8011 3516 8017
      3515 8016 3517 8020 3515 8021 3521 8025
      3516 8039 3516 8046

$$

23

The office that day

Everything else NWS Raleigh, NC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 6, 8:25 PM EDT	Areal Flood Advisory	RAH	Franklin	116 min
Jul 6, 9:12 PM EDT	Areal Flood Advisory	RAH	Halifax	108 min
Jul 7, 1:51 PM EDT	Special Weather Statement	RAH	Lee	39 min
Jul 7, 2:33 PM EDT	Special Weather Statement	RAH	Chatham	57 min
Jul 7, 2:46 PM EDT	Special Weather Statement	RAH	Durham	59 min
Jul 7, 2:59 PM EDT	Severe Thunderstorm Warning	RAH	Durham, Granville, Wake	40 min
Jul 7, 3:10 PM EDT	Areal Flood Advisory	RAH	Durham	2 hr
Jul 7, 3:19 PM EDT	Areal Flood Advisory	RAH	Lee	2 hr
Jul 7, 3:48 PM EDT	Special Weather Statement	RAH	Franklin	57 min
Jul 7, 4:33 PM EDT	Areal Flood Advisory	RAH	Franklin, Wake	62 min
Jul 7, 4:51 PM EDT	Special Weather Statement	RAH	Vance	39 min
Jul 7, 5:03 PM EDT	Areal Flood Advisory	RAH	Stanly	116 min
Jul 7, 5:05 PM EDT	Special Weather Statement	RAH	Anson, Montgomery, Richmond, Stanly	85 min
Jul 7, 5:17 PM EDT	Special Weather Statement	RAH	Warren	43 min
Jul 7, 5:24 PM EDT	Areal Flood Advisory	RAH	Anson	88 min
Jul 7, 5:31 PM EDT	Severe Thunderstorm Warning	RAH	Vance, Warren	32 min
Jul 7, 6:47 PM EDT	Special Weather Statement	RAH	Montgomery	58 min
Jul 7, 7:21 PM EDT	Special Weather Statement	RAH	Johnston	24 min
Jul 7, 7:55 PM EDT	Special Weather Statement	RAH	Wilson	65 min

Nearby

Flash Flood Warnings in North Carolina, 2011 Every flash flood warning in 2011

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.