Alert archive / Pennsylvania / Lake Effect Snow Warnings in 2016

Lake Effect Snow Warning 1, NWS State College, PA

January 12, 2016Warren County, Pennsylvania

NWS State College, PA issued this lake effect snow warning at Jan 12, 2016, 3:13 PM EST for Warren County, Pennsylvania. It took effect at Jan 12, 2016, 7:00 PM EST. It was in force for 16 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 12, 2016, 3:13 PM EST (20:13 UTC)
In effect from: Jan 12, 2016, 7:00 PM EST
Expired: Jan 13, 2016, 11:28 AM EST
In force: 16 hr
Issued by: NWS State College, PA

County Warren County, PA

The radar

The Buffalo radar (KBUF), 134 km from the middle of the area, began a volume at 20:15 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 12:00Z, 8.2 hours before the alert went out and 133 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: 637 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: 309 m²/s²
0-3 km storm-relative helicity: 410 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 lake effect snow warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS State College, PA wrote its last area forecast discussion before this lake effect snow warning went out at Jan 12, 1:27 PM EST, 1 hour 46 minutes earlier.

Area forecast discussion, Jan 12, 1:27 PM EST, 1 hour 46 minutes before

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Hazardous weather outlook, Jan 12, 3:01 AM EST, 12 hours 12 minutes before

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In the hours before

Special weather statement, Jan 12, 12:55 PM EST, 2 hours 18 minutes before

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Special weather statement, Jan 12, 1:56 PM EST, 1 hour 17 minutes before

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Local storm report, Jan 12, 2:04 PM EST, 1 hour 9 minutes before

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Special weather statement, Jan 12, 2:16 PM EST, 57 minutes before

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Special weather statement, Jan 12, 2:51 PM EST, 22 minutes before

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Special weather statement, Jan 12, 3:08 PM EST, 5 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 12, 2:08 AM EST	Lake Effect Snow Watch	CTP	McKean, Warren	13 hr
Jan 12, 2:08 AM EST	Winter Weather Advisory	CTP	Cambria, Cameron, Clearfield, Elk, McKean, Potter and 2 more	29 hr
Jan 12, 12:55 PM EST	Special Weather Statement	CTP	Cameron, Clearfield, Elk	65 min
Jan 12, 1:56 PM EST	Special Weather Statement	CTP	Cameron, Clearfield	79 min
Jan 12, 2:16 PM EST	Special Weather Statement	CTP	Blair, Cambria, Somerset	74 min
Jan 12, 2:51 PM EST	Special Weather Statement	CTP	Centre, Clinton, Lycoming	84 min
Jan 12, 3:08 PM EST	Special Weather Statement	CTP	Bedford, Blair, Huntingdon, Juniata, Mifflin, Somerset	82 min
Jan 12, 3:13 PM EST	Lake Effect Snow Advisory	CTP	McKean	20 hr
Jan 12, 3:46 PM EST	Special Weather Statement	CTP	Lycoming, Montour, Northumberland, Snyder, Sullivan, Union	59 min
Jan 12, 3:54 PM EST	Special Weather Statement	CTP	Adams, Cumberland, Dauphin, Franklin, Fulton, Perry	66 min
Jan 12, 4:46 PM EST	Special Weather Statement	CTP	Columbia, Montour, Northumberland, Schuylkill, Sullivan	59 min
Jan 12, 4:52 PM EST	Special Weather Statement	CTP	Adams, Cumberland, Dauphin, Lancaster, Lebanon, York	53 min
Jan 12, 6:01 PM EST	Special Weather Statement	CTP	Lancaster, York	74 min

Nearby

Lake Effect Snow Warnings in Pennsylvania, 2016 Every lake effect snow warning 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.