Alert archive / Pennsylvania / Wind Chill Advisories in 2016

Wind Chill Advisory 1, NWS Pittsburgh, PA

January 17, 201614 counties in Pennsylvania; 9 counties in West Virginia; 11 counties in Ohio

NWS Pittsburgh, PA issued this wind chill advisory at Jan 17, 2016, 4:04 AM EST for 14 counties in Pennsylvania; 9 counties in West Virginia; 11 counties in Ohio. It took effect at Jan 18, 2016, 1:00 AM EST. It was in force for 36 hr.

The area

The counties it named.

The facts

Issued
Jan 17, 2016, 4:04 AM EST (09:04 UTC)
In effect from
Jan 18, 2016, 1:00 AM EST
Expired
Jan 19, 2016, 1:00 PM EST
In force
36 hr
Issued by
NWS Pittsburgh, PA
All 34 counties

Belmont County, OH, Carroll County, OH, Columbiana County, OH, Coshocton County, OH, Guernsey County, OH, Harrison County, OH, Jefferson County, OH, Monroe County, OH, Muskingum County, OH, Noble County, OH, Tuscarawas County, OH, Allegheny County, PA, Armstrong County, PA, Beaver County, PA, Butler County, PA, Clarion County, PA, Fayette County, PA, Forest County, PA, Greene County, PA, Jefferson County, PA, Lawrence County, PA, Mercer County, PA, Venango County, PA, Washington County, PA, Westmoreland County, PA, Brooke County, WV, Hancock County, WV, Marion County, WV, Marshall County, WV, Monongalia County, WV, Ohio County, WV, Preston County, WV, Tucker County, WV, Wetzel County, WV

The radar

The Pittsburgh radar (KPBZ), 28 km from the middle of the area, began a volume at 09:10 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

Pittsburgh, PA (KAGC), launched 00:00Z, 9.1 hours before the alert went out and 28 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, Pittsburgh, PA at 00:00Z on 2016-01-17Temperature 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, Pittsburgh, PA at 00:00Z on 2016-01-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 21 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
766 m above ground
0-6 km bulk shear
59 kt
0-1 km storm-relative helicity
21 m²/s²
0-3 km storm-relative helicity
23 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

Everything else NWS Pittsburgh, PA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 16, 8:26 PM ESTFreezing Rain AdvisoryPBZFayette, Westmoreland8 hr
Jan 17, 4:04 AM ESTLake Effect Snow AdvisoryPBZForest, Venango38 hr
Jan 17, 5:14 PM ESTSpecial Weather StatementPBZAllegheny, Armstrong, Butler, Clarion61 min
Jan 17, 6:28 PM ESTSpecial Weather StatementPBZIndiana, Jefferson47 min

Nearby

Wind Chill Advisories in Pennsylvania, 2016Wind Chill Advisories in Ohio, 2016Wind Chill Advisories in West Virginia, 2016Every wind chill advisory in 2016

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.