Alert archive / Pennsylvania / Special Weather Statements in 2012

Special Weather Statement, NWS State College, PA

January 2, 2012Centre County, Clearfield County, Pennsylvania

NWS State College, PA issued this special weather statement at Jan 2, 2012, 6:02 PM EST for Centre County, Clearfield County, Pennsylvania. It was in force for 28 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jan 2, 2012, 6:02 PM EST (23:02 UTC)
Expired: Jan 2, 2012, 6:30 PM EST
In force: 28 min
Issued by: NWS State College, PA

Counties Centre County, PA, Clearfield County, PA

The radar

The State College radar (KCCX), 47 km from the middle of the area, began a volume at 23:02 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, 11.0 hours before the alert went out and 201 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: 747 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 117 m²/s²
0-3 km storm-relative helicity: 124 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Jan 2, 4:13 PM EST, 1 hour 49 minutes earlier.

Area forecast discussion, Jan 2, 4:13 PM EST, 1 hour 49 minutes before

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Hazardous weather outlook, Jan 2, 4:34 PM EST, 1 hour 28 minutes before

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In the hours before

Special weather statement, Jan 2, 6:02 PM EST, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
602 PM EST MON JAN 2 2012

PAZ017>019-045-022330-
CLEARFIELD PA-NORTHERN CENTRE PA-SOUTHERN CENTRE PA-
SOUTHERN CLINTON PA-
602 PM EST MON JAN 2 2012

...SNOW SQUALLS WILL AFFECT CENTRAL CENTRE...NORTHERN CLEARFIELD AND
SOUTHERN CLINTON COUNTIES...

AN AREA OF SNOW SQUALLS ALONG INTERSTATE 80 FROM CLEARFIELD TO LAMAR
WILL DROP SLOWLY TO THE SOUTH THROUGH 7 PM. THIS WILL KEEP THE SNOW
FALLING OVER I 80 FOR MOST OF THAT TIME.

SEVERAL ACCIDENTS HAVE ALREADY OCCURRED TODAY. DRIVERS SHOULD KEEP
AWARE THAT THERE WILL BE QUICK REDUCTIONS IN VISIBILITY WHEN DRIVING
THROUGH SNOW SQUALLS. THE ROADS CAN ALSO BECOME SLICK OR ICY IF NOT
TREATED RECENTLY. DRIVERS SHOULD USE EXTRA CAUTION WHEN DRIVING IN
SNOW.

WIND GUSTS TO 30 MPH ARE POSSIBLE WITH THESE SNOW SQUALLS. THE SNOW
WILL RAPIDLY DROP VISIBILITIES IN THESE SNOW SQUALLS TO LESS THAN A
QUARTER OF A MILE.

THIS WILL IMPACT THE FOLLOWING CENTRAL PENNSYLVANIA INTERSTATES...
I-80 BETWEEN MILE MARKERS 97 AND 171...I-99 BETWEEN MILE MARKERS 76
AND 85.

LAT...LON 4120 7878 4121 7876 4121 7869 4122 7865
      4123 7865 4100 7739 4079 7763 4108 7881
      4113 7881

FORECASTER: DANGELO

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 2, 9:08 AM EST	Special Weather Statement	CTP	Cameron, Centre, Clearfield, Clinton, Columbia, Elk and 5 more	3 hr
Jan 2, 6:46 PM EST	Special Weather Statement	CTP	Cambria	44 min

Nearby

Special Weather Statements in Pennsylvania, 2012 Every special weather statement in 2012

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.