Alert archive / West Virginia / Flash Flood Warnings in 1998

Flash Flood Warning 10, NWS Charleston, WV

January 8, 1998Pocahontas County, West Virginia

NWS Charleston, WV issued this flash flood warning at Jan 8, 1998, 3:45 AM EST for Pocahontas County, West Virginia. 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
Jan 8, 1998, 3:45 AM EST (08:45 UTC)
Expired
Jan 8, 1998, 6:45 AM EST
In force
3 hr
Issued by
NWS Charleston, WV
Area
Whole counties

County Pocahontas County, WV

The radar

The Roanoke radar (KFCX), 147 km from the middle of the area, began a volume at 08:47 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

Roanoke, VA (KRNK), launched 00:00Z, 8.8 hours before the alert went out and 134 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-pSkew-T log-p diagram, Roanoke, VA at 00:00Z on 1998-01-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 61 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Roanoke, VA at 00:00Z on 1998-01-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 235 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
61 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
517 m above ground
0-6 km bulk shear
62 kt
0-1 km storm-relative helicity
235 m²/s²
0-3 km storm-relative helicity
283 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KCRW 080848
FFWCRW
WVC075-081145-
 
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE CHARLESTON WV
345 AM EST THU JAN 8 1998
 
THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  645 AM EST
FOR PEOPLE IN THE FOLLOWING LOCATION......
 
IN EAST WEST VIRGINIA...
 
   ...EASTERN POCAHONTAS COUNTY...
 
AT 335 AM...NATIONAL WEATHER SERVICE RADAR INDICATED HEAVY RAINFALL
ACROSS EASTERN POCAHONTAS COUNTY IN THE LAST HOUR. THE RAIN WILL CAUSE
FLASH FLOODING ALONG THE SMALLER STREAMS AND CREEKS. BEAVER CREEK IS
ALREADY AT BANKFULL. THE LARGER CREEKS AND THE GREENBRIER RIVER WILL
SHOW RAPID RISES...BUT SHOULD REMAIN WITHIN THIER BANKS.
 
 
<< CALL TO ACTION >> 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.  VEHICLES CAUGHT IN RISING WATER SHOULD BE
ABANDONED QUICKLY.  MOVE TO HIGHER GROUND. WAxTCH OUT FOR MUD SLIDES.

The office that day

Everything else NWS Charleston, WV issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 7, 7:59 PM ESTFlash Flood WarningRLXPleasants, Tyler6 hr

Nearby

Flash Flood Warnings in West Virginia, 1998Every flash flood warning in 1998

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.