Alert archive / Pennsylvania / Frost Advisories in 2005

Frost Advisory 1, NWS State College, PA

September 29, 200511 counties in Pennsylvania

NWS State College, PA issued this frost advisory at Sep 29, 2005, 2:14 AM EDT for 11 counties in Pennsylvania. It took effect at Sep 30, 2005, 2:00 AM EDT. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued: Sep 29, 2005, 2:14 AM EDT (06:14 UTC)
In effect from: Sep 30, 2005, 2:00 AM EDT
Expired: Sep 30, 2005, 9:00 AM EDT
In force: 7 hr
Issued by: NWS State College, PA

Counties Cameron County, PA, Centre County, PA, Clearfield County, PA, Clinton County, PA, Elk County, PA, Lycoming County, PA, McKean County, PA, Potter County, PA, Sullivan County, PA, Tioga County, PA, Warren County, PA

The radar

The State College radar (KCCX), 59 km from the middle of the area, began a volume at 06:16 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, 6.2 hours before the alert went out and 176 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: 1631 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 192 m²/s²
0-3 km storm-relative helicity: 328 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 frost advisory 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 frost advisory went out at Sep 29, 2:01 AM EDT, 13 minutes earlier.

Area forecast discussion, Sep 29, 2:01 AM EDT, 13 minutes before

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Hazardous weather outlook, Sep 28, 6:39 AM EDT, 19 hours 35 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE STATE COLLEGE PA
639 AM EDT WED SEP 28 2005

PAZ004>006-010>012-017>019-024>028-033>037-041-042-045-046-
049>053-056>059-063>066-291045-
WARREN-MCKEAN-POTTER-ELK-CAMERON-NORTHERN CLINTON-CLEARFIELD-
NORTHERN CENTRE-SOUTHERN CENTRE-CAMBRIA-BLAIR-HUNTINGDON-MIFFLIN-
JUNIATA-SOMERSET-BEDFORD-FULTON-FRANKLIN-TIOGA-NORTHERN LYCOMING-
SULLIVAN-SOUTHERN CLINTON-SOUTHERN LYCOMING-UNION-SNYDER-MONTOUR-
NORTHUMBERLAND-COLUMBIA-PERRY-DAUPHIN-SCHUYLKILL-LEBANON-
CUMBERLAND-ADAMS-YORK-LANCASTER-
639 AM EDT WED SEP 28 2005

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL
PENNSYLVANIA.

.DAY ONE...TODAY AND TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

A COLD FRONT WILL PASS THROUGH THE REGION THURSDAY MORNING...AND
MAY PRODUCE STRONG GUSTY WINDS.

CLEARING SKIES AND COLD TEMPERATURES MAY LEAD TO AREAS OF FROST
FRIDAY MORNING...ESPECIALLY NORTH OF INTERSTATE 80.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED.

DANGELO

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 29, 4:27 AM EDT	Severe Thunderstorm Warning	CTP	Warren	78 min
Sep 29, 5:32 AM EDT	Severe Thunderstorm Warning	CTP	Elk, McKean	58 min
Sep 29, 5:39 AM EDT	Wind Advisory	CTP	Cambria, Cameron, Centre, Clearfield, Clinton, Elk and 7 more	3 hr
Sep 29, 5:59 AM EDT	Severe Thunderstorm Warning	CTP	Clearfield	61 min
Sep 29, 6:20 AM EDT	Severe Thunderstorm Warning	CTP	Cameron, Potter	55 min
Sep 29, 6:26 AM EDT	Severe Thunderstorm Warning	CTP	Cambria	34 min
Sep 29, 6:35 AM EDT	Severe Thunderstorm Warning	CTP	Blair	55 min
Sep 29, 6:41 AM EDT	Severe Thunderstorm Warning	CTP	Centre, Clinton	79 min
Sep 29, 6:51 AM EDT	Severe Thunderstorm Warning	CTP	Tioga	54 min
Sep 29, 6:56 AM EDT	Severe Thunderstorm Warning	CTP	Bedford	34 min
Sep 29, 7:07 AM EDT	Severe Thunderstorm Warning	CTP	Huntingdon	23 min
Sep 29, 7:11 AM EDT	Severe Thunderstorm Warning	CTP	Lycoming	79 min
Sep 29, 7:29 AM EDT	Severe Thunderstorm Warning	CTP	Juniata, Mifflin, Snyder, Union	61 min

Nearby

Frost Advisories in Pennsylvania, 2005 Every frost advisory in 2005

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.