Alert archive / Pennsylvania / Wind Chill Advisories in 2015

Wind Chill Advisory 3, NWS Pittsburgh, PA

January 30, 20156 counties in Pennsylvania

NWS Pittsburgh, PA issued this wind chill advisory at Jan 30, 2015, 4:05 AM EST for 6 counties in Pennsylvania. It took effect at Jan 30, 2015, 7:00 PM EST. It was in force for 13 hr.

The area

The counties it named.

The facts

Issued: Jan 30, 2015, 4:05 AM EST (09:05 UTC)
In effect from: Jan 30, 2015, 7:00 PM EST
Expired: Jan 31, 2015, 8:28 AM EST
In force: 13 hr
Issued by: NWS Pittsburgh, PA

Counties Clarion County, PA, Fayette County, PA, Forest County, PA, Jefferson County, PA, Venango County, PA, Westmoreland County, PA

The radar

The Pittsburgh radar (KPBZ), 79 km from the middle of the area, began a volume at 09:11 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

Buffalo Intl Airport, NY (KBUF), launched 00:00Z, 9.1 hours before the alert went out and 232 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 512 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: 245 m²/s²
0-3 km storm-relative helicity: 395 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this wind chill advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Pittsburgh, PA wrote its last area forecast discussion before this wind chill advisory went out at Jan 30, 4:02 AM EST, 3 minutes earlier.

Area forecast discussion, Jan 30, 4:02 AM EST, 3 minutes before

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In the hours before

Local storm report, Jan 30, 2:21 AM EST, 1 hour 44 minutes before

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Local storm report, Jan 30, 2:22 AM EST, 1 hour 43 minutes before

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Local storm report, Jan 30, 2:26 AM EST, 1 hour 39 minutes before

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Local storm report, Jan 30, 3:05 AM EST, 1 hour before

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Local storm report, Jan 30, 3:06 AM EST, 59 minutes before

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Local storm report, Jan 30, 3:07 AM EST, 58 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 30, 12:06 PM EST	Winter Storm Watch	PBZ	Allegheny, Armstrong, Beaver, Butler, Clarion, Fayette and 7 more	26 hr

Nearby

Wind Chill Advisories in Pennsylvania, 2015 Wind Chill Advisories in West Virginia, 2015 Every wind chill advisory in 2015

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.