Alert archive / North Carolina / Flash Flood Warnings in 2004

Flash Flood Warning 40, NWS Blacksburg, VA

September 28, 2004Stokes County, North Carolina

NWS Blacksburg, VA issued this flash flood warning at Sep 28, 2004, 4:30 AM EDT for Stokes County, North Carolina. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Sep 28, 2004, 4:30 AM EDT (08:30 UTC)
Expired: Sep 28, 2004, 7:30 AM EDT
In force: 3 hr
Issued by: NWS Blacksburg, VA
Area: Whole counties

County Stokes County, NC

The radar

The Roanoke radar (KFCX), 69 km from the middle of the area, began a volume at 08:34 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.

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 8.5 hours before the alert went out and 47 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: 113 J/kg
Mixed-layer CIN: -25 J/kg
Mixed-layer LCL: 471 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 195 m²/s²
0-3 km storm-relative helicity: 219 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.8

Open this sounding in Storm Lab

The text

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

000 
WGUS51 KRNK 280834
FFWRNK
NCC169-281130-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BLACKSBURG VA
430 AM EDT TUE SEP 28 2004

THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS EXTENDED A

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

* UNTIL 730 AM EDT

* AT 430 AM EDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED ONGOING   
  FLASH FLOODING IN THE COUNTY FROM HEAVY RAIN OVERNIGHT. IN 
  ADDITION...ANOTHER BAND OF HEAVY RAIN WAS APPROACHING THE COUNTY 
  FROM THE SOUTH AND COULD BRING AN ADDITIONAL 1 TO 2 INCHES OF RAIN 
  AFTER 5:30 AM. 

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO 
  VADE...SANDY RIDGE...PRESTONVILLE...MEADOWS...FRANCISCO...
  DILLARD...DANBURY...COLLINSTOWN AND CAPELLA.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL 
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW
LYING AREAS ARE SUBJECT TO FLOODING.

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 RELAY REPORTS OF FLOODING TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...1...8 6 6...2 1 5...4 3 2 4.

LAT...LON 3628 8042 3630 8024 3628 8008 3654 8006
      3653 8042 3654 8047 3643 8045 3627 8046
      3629 8024 3629 8035

$$

JJ

1 follow-up statement

000 
WGUS71 KRNK 281035
FFSRNK
NCC169-281130-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
635 AM EDT TUE SEP 28 2004

...A FLASH FLOOD WARNING CONTINUES UNTIL 730 AM EDT FOR STOKES
COUNTY...

AT 635 AM EDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED ONGOING 
FLOODING ACROSS THE COUNTY. MANY SECONDARY ROADS WERE DAMAGED. 
SIGNIFICANT FLOODING WAS OCCURRING IN THE WESTFIELD AND KING AREAS. 
AN SECOND BAND OF HEAVY RAIN WAS MOVING THROUGH THE COUNTY...AND 
SHOULD BE EXITING BY 7:30. THIS BAND OF RAIN WILL BRING AN 
ADDITIONAL 1 TO 2 INCHES OF RAIN WHICH WILL AGGRAVATE THE ONGOING 
FLOODING.
   
TO REPORT SIGNIFICANT FLOODING...PLEASE CONTACT THE NATIONAL WEATHER 
SERVICE IN BLACKSBURG AT...1...8 6 6...2 1 5...4 3 2 4.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. REMEMBER TO TURN AROUND...DONT DROWN.

LAT...LON 3628 8042 3630 8024 3628 8008 3654 8006
      3653 8042 3654 8047 3643 8045 3627 8046
      3629 8024 3629 8035

$$
JJ

The office that day

Everything else NWS Blacksburg, VA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Sep 28, 1:31 AM EDT	Flash Flood Warning	RNK	Stokes, Surry, Yadkin	3 hr

Nearby

Flash Flood Warnings in North Carolina, 2004 Every flash flood warning in 2004

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.