Alert archive / West Virginia / Severe Thunderstorm Watches in 1997

Severe Thunderstorm Watch 77

March 1, 19975 counties in Kentucky; Buchanan County, Giles County, Highland County, Virginia; 17 counties in West Virginia

The Storm Prediction Center issued this severe thunderstorm watch at Mar 1, 1997, 4:30 PM EST for 5 counties in Kentucky; Buchanan County, Giles County, Highland County, Virginia; 17 counties in West Virginia. It was in force for 4 hr.

The area

The outline as issued.

The facts

Issued
Mar 1, 1997, 4:30 PM EST (21:30 UTC)
Expired
Mar 1, 1997, 8:00 PM EST
In force
4 hr
Issued by
the Storm Prediction Center
All 25 counties

Floyd County, KY, Knott County, KY, Martin County, KY, Perry County, KY, Pike County, KY, Buchanan County, VA, Giles County, VA, Highland County, VA, Boone County, WV, Clay County, WV, Fayette County, WV, Greenbrier County, WV, Kanawha County, WV, Lincoln County, WV, Logan County, WV, McDowell County, WV, Mercer County, WV, Mingo County, WV, Monroe County, WV, Nicholas County, WV, Pocahontas County, WV, Raleigh County, WV, Summers County, WV, Webster County, WV, Wyoming County, WV

The radar

The Charleston,WV radar (KRLX), 65 km from the middle of the area, began a volume at 21:31 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.

Warnings issued inside it

4 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Mar 1, 5:27 PM ESTSevere Thunderstorm WarningRLXBoone, Kanawha33 min
Mar 1, 5:30 PM ESTSevere Thunderstorm WarningRLXBoone, Kanawha30 min
Mar 1, 5:41 PM ESTSevere Thunderstorm WarningRLXFayette49 min
Mar 1, 6:00 PM ESTSevere Thunderstorm WarningRNKGreenbrier60 min

The nearest sounding before it

Roanoke, VA (KRNK), launched 12:00Z, 9.5 hours before the alert went out and 203 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 12:00Z on 1997-03-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 12:00Z on 1997-03-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 539 square meters per square second.1939587897Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
490 m above ground
0-6 km bulk shear
64 kt
0-1 km storm-relative helicity
539 m²/s²
0-3 km storm-relative helicity
665 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 1, 2:00 AM ESTTornado WatchSPCAllen, Barren, Caldwell, Calloway, Christian, Graves and 9 more5 hr
Mar 1, 3:30 PM ESTTornado WatchSPCAllen, Ballard, Barren, Butler, Caldwell, Calloway and 22 more7 hr

Nearby

Severe Thunderstorm Watches in West Virginia, 1997Severe Thunderstorm Watches in Kentucky, 1997Severe Thunderstorm Watches in Virginia, 1997Every severe thunderstorm watch in 1997

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.