Alert archive / West Virginia / Wind Chill Advisories in 2017

Wind Chill Advisory 3, NWS Baltimore/Washington

March 10, 2017Highland County, Virginia; Grant County, Pendleton County, West Virginia

NWS Baltimore/Washington issued this wind chill advisory at Mar 10, 2017, 12:56 PM EST for Highland County, Virginia; Grant County, Pendleton County, West Virginia. It took effect at Mar 11, 2017, 12:00 AM EST. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued
Mar 10, 2017, 12:56 PM EST (17:56 UTC)
In effect from
Mar 11, 2017, 12:00 AM EST
Expired
Mar 11, 2017, 8:00 AM EST
In force
8 hr
Issued by
NWS Baltimore/Washington

Counties Highland County, VA, Grant County, WV, Pendleton County, WV

The radar

The Sterling radar (KLWX), 166 km from the middle of the area, began a volume at 17:57 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 12:00Z, 5.9 hours before the alert went out and 169 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 2017-03-10Temperature 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 2017-03-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 343 square meters per square second.1939587897117136Sfc1 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
804 m above ground
0-6 km bulk shear
65 kt
0-1 km storm-relative helicity
343 m²/s²
0-3 km storm-relative helicity
376 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

Everything else NWS Baltimore/Washington issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 10, 2:59 AM ESTSmall Craft AdvisoryLWX52 hr
Mar 9, 11:52 PM ESTWinter Weather AdvisoryLWXAllegany12 hr

Nearby

Wind Chill Advisories in West Virginia, 2017Wind Chill Advisories in Virginia, 2017Every wind chill advisory in 2017

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.