Alert archive / Virginia / Flash Flood Warnings in 2018

Flash Flood Warning 2, NWS Morristown, TN

May 26, 2018Wise County, Virginia

NWS Morristown, TN issued this flash flood warning at May 26, 2018, 12:41 PM EDT for Wise County, Virginia. It was in force for 3 hr. 1 report 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: May 26, 2018, 12:41 PM EDT (16:41 UTC)
Expired: May 26, 2018, 3:45 PM EDT
In force: 3 hr
Issued by: NWS Morristown, TN
Area: Storm-based polygon
Flood severity: None

County Wise County, VA

The radar

The Jackson,KY radar (KJKL), 82 km from the middle of the area, began a volume at 16:40 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
May 26, 2:00 PM EDT	FLASH FLOOD	Pound, VA	FLOODING ON ROADWAY US23 AT THE US23/RT 83 INTERSECTION IN POUND, VA.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Roanoke, VA (KRNK), launched 12:00Z, 4.7 hours before the alert went out and 279 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: 15 J/kg
Mixed-layer CIN: -139 J/kg
Mixed-layer LCL: 932 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: -3 m²/s²
0-3 km storm-relative helicity: 119 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

As transmitted.

710 
WGUS54 KMRX 261641
FFWMRX
VAC195-261945-
/O.NEW.KMRX.FF.W.0002.180526T1641Z-180526T1945Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Morristown TN
1241 PM EDT SAT MAY 26 2018

The National Weather Service in Morristown has issued a

* Flash Flood Warning for...
  Northwestern Wise County in southwestern Virginia...

* Until 345 PM EDT.

* At 1240 PM EDT, Doppler radar indicated heavy rain across the
  warned area. Up to three inches of rain have already fallen. Flash
  flooding is expected to begin shortly.

* Some locations that will experience flooding include...
  Pound.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

&&

LAT...LON 3713 8255 3707 8250 3704 8249 3701 8253
      3701 8278 3703 8276 3703 8275 3704 8274
      3705 8272 3707 8273 3708 8272 3712 8272
      3715 8264 3720 8255

$$

CDG

2 follow-up statements

030 
WGUS74 KMRX 261837
FFSMRX

Flash Flood Statement
National Weather Service Morristown TN
237 PM EDT SAT MAY 26 2018

VAC195-261945-
/O.CON.KMRX.FF.W.0002.000000T0000Z-180526T1945Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Wise VA-
237 PM EDT SAT MAY 26 2018

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 345 PM EDT FOR
NORTHWESTERN WISE COUNTY...

At 236 PM EDT, Doppler radar indicated heavy rain had occured over 
the last 6 hours across the warned area. Up to three inches of rain 
have already fallen. Flash flooding is already occurring.

Some locations that will experience flooding include...
Pound.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

&&

LAT...LON 3713 8255 3707 8250 3704 8249 3701 8253
      3701 8278 3703 8276 3703 8275 3704 8274
      3705 8272 3707 8273 3708 8272 3712 8272
      3715 8264 3720 8255

$$

CDG

577 
WGUS74 KMRX 261940
FFSMRX

Flash Flood Statement
National Weather Service Morristown TN
340 PM EDT SAT MAY 26 2018

VAC195-261948-
/O.EXP.KMRX.FF.W.0002.000000T0000Z-180526T1945Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Wise VA-
340 PM EDT SAT MAY 26 2018

...THE FLASH FLOOD WARNING FOR NORTHWESTERN WISE COUNTY WILL EXPIRE
AT 345 PM EDT...

Flood waters have receded. Please continue to heed any remaining 
road closures. Additional rainfall is expected later today therefore 
further advisories or warnings may be needed.

LAT...LON 3713 8255 3707 8250 3704 8249 3701 8253
      3701 8278 3703 8276 3703 8275 3704 8274
      3705 8272 3707 8273 3708 8272 3712 8272
      3715 8264 3720 8255

$$

CDG

The office that day

Everything else NWS Morristown, TN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 26, 9:03 AM EDT	Areal Flood Advisory	MRX	Russell, Washington, City of Bristol	3 hr
May 26, 11:41 AM EDT	Areal Flood Advisory	MRX	Russell, Scott, Washington, City of Bristol	3 hr
May 26, 11:57 AM EDT	Areal Flood Advisory	MRX	Wise	2 hr
May 26, 12:55 PM EDT	Flash Flood Warning	MRX	Russell, Washington	6 hr

Nearby

Flash Flood Warnings in Virginia, 2018 Every flash flood warning in 2018

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.