Alert archive / Pennsylvania / Special Weather Statements in 2021
Special Weather Statement, NWS State College, PA
NWS State College, PA issued this special weather statement at Jan 22, 2021, 4:00 PM EST for Sullivan County, Pennsylvania. It was in force for 30 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 22, 2021, 4:00 PM EST (21:00 UTC)
- Expired
- Jan 22, 2021, 4:30 PM EST
- In force
- 30 min
- Issued by
- NWS State College, PA
County Sullivan County, PA
The radar
The Binghamton radar (KBGM), 110 km from the middle of the area, began a volume at 20:59 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, 9.0 hours before the alert went out and 254 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 919 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- 76 m²/s²
- 0-3 km storm-relative helicity
- 83 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
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</html>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 22, 3:15 PM EST, 45 minutes earlier.
Area forecast discussion, Jan 22, 3:15 PM EST, 45 minutes before
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</html>Hazardous weather outlook, Jan 22, 4:53 AM EST, 11 hours 7 minutes before
Hazardous Weather Outlook National Weather Service State College PA 453 AM EST Fri Jan 22 2021 PAZ006-010>012-017>019-025>028-034>037-041-042-045-046-049>053- 056>059-063>066-231000- Potter-Elk-Cameron-Northern Clinton-Clearfield-Northern Centre- Southern Centre-Blair-Huntingdon-Mifflin-Juniata-Bedford-Fulton- Franklin-Tioga-Northern Lycoming-Sullivan-Southern Clinton- Southern Lycoming-Union-Snyder-Montour-Northumberland-Columbia-Perry- Dauphin-Schuylkill-Lebanon-Cumberland-Adams-York-Lancaster- 453 AM EST Fri Jan 22 2021 This Hazardous Weather Outlook is for central Pennsylvania. .DAY ONE...Today and tonight. A cold front will drift southeast across the region late this morning and this afternoon accompanied by a broken line of brief heavy snow showers and even a squall that could bring one half inch of snow in less than 15 minutes. Brief greatly reduced visibility and icy roads are possible in some locations. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. Steady snow will likely spread northeast across the region Monday afternoon and continue into Tuesday as low pressure moves northeast up the Ohio River Valley. .SPOTTER INFORMATION STATEMENT... Spotters are encouraged to report significant hazardous weather. PAZ004-005-231000- Warren-McKean- 453 AM EST Fri Jan 22 2021 This Hazardous Weather Outlook is for central Pennsylvania. .DAY ONE...Today and tonight. A cold front will drift southeast across the region late this morning, accompanied by a broken line of brief heavy snow showers and even some heavier squalls. Accumulations from this weather feature ranging from a coating to one inch, will combine with the already expected occasional snow showers and few inches of Lake Effect Snow. Brief, greatly reduced visibility and icy roads are likely through tonight. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. Light snow accumulation is likely Friday into Saturday due to persistent lake effect snow showers. Steady snow will likely spread northeast across the region late Monday afternoon and continue into Tuesday as low pressure moves northeast up the Ohio River Valley. .SPOTTER INFORMATION STATEMENT... Spotters are encouraged to report significant hazardous weather. PAZ024-033-231000- Cambria-Somerset- 453 AM EST Fri Jan 22 2021 This Hazardous Weather Outlook is for central Pennsylvania. .DAY ONE...Today and tonight. A cold front will drift southeast across the region this afternoon, accompanied by a broken line of brief heavy snow showers and even some heavier squalls. Accumulations from this weather feature ranging from a coating to one inch, will be followed by additional narrow bands of snow showers and upslope snows tonight into Saturday bringing another 1 to 2 inches of snow. Brief, greatly reduced visibility and icy roads are likely through tonight. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. Steady snow will likely spread northeast across the region Monday afternoon and continue into Tuesday, possibly mixing with or changing to sleet and freezing rain as low pressure moves northeast up the Ohio River Valley. .SPOTTER INFORMATION STATEMENT... Spotters are encouraged to report significant hazardous weather. Lambert
In the hours before
Special weather statement, Jan 22, 11:54 AM EST, 4 hours 6 minutes before
Special Weather Statement
National Weather Service State College PA
1154 AM EST Fri Jan 22 2021
PAZ005-006-010>012-037-041-221800-
McKean PA-Potter PA-Northern Clinton PA-Cameron PA-
Northern Lycoming PA-Tioga PA-Elk PA-
1154 AM EST Fri Jan 22 2021
...BANDS OF HEAVY SNOW WILL AFFECT PARTS OF MCKEAN...POTTER...
NORTHERN CLINTON...CAMERON...NORTHERN LYCOMING...TIOGA...AND ELK
COUNTIES...
HAZARDS...Bands of heavy snow which can rapidly reduce visibility to
less than one half of a mile.
LOCATION AND MOVEMENT...At 1153 AM EST, bands of heavy snow were
along a line extending from Lyman Run State Park to East Branch Dam
and moving southeast at 35 MPH.
THIS BAND OF HEAVY SNOW WILL BE NEAR...
Cherry Springs State Park around 1200 PM EST.
Elk River around 1210 PM EST.
Truman around 1215 PM EST.
Leetonia and Emporium around 1225 PM EST.
Cameron and Cedar Run around 1235 PM EST.
Stevenson Dam around 1250 PM EST.
SAFETY INFO... Use extra caution if you must travel into or through
this band of heavy snow. Rapid changes in visibility and potentially
slick roads are likely to lead to accidents. Consider delaying
travel until this band of heavy snow passes your location.
&&
LAT...LON 4155 7706 4131 7809 4151 7857 4171 7886
4179 7831 4167 7759
TIME...MOT...LOC 1653Z 294DEG 28KT 4172 7781 4154 7860
DeVoirSpecial weather statement, Jan 22, 1:48 PM EST, 2 hours 12 minutes before
Special Weather Statement
National Weather Service State College PA
148 PM EST Fri Jan 22 2021
PAZ011-012-018-041-045-046-221945-
Southern Lycoming PA-Northern Centre PA-Southern Clinton PA-
Northern Clinton PA-Cameron PA-Northern Lycoming PA-
148 PM EST Fri Jan 22 2021
...A SNOW SQUALL WILL AFFECT PARTS OF SOUTHERN LYCOMING...NORTHERN
CENTRE...SOUTHERN CLINTON...NORTHERN CLINTON...CAMERON...AND NORTHERN
LYCOMING COUNTIES...
HAZARDS...A snow squall which can rapidly reduce visibility to less
than one half of a mile.
LOCATION AND MOVEMENT...At 148 PM EST, a snow squall was along a line
extending from near Cammal to 6 miles south of Hicks Run and moving
southeast at 20 MPH.
THIS SQUALL WILL BE NEAR...
Cammal around 155 PM EST.
Little Pine State Park around 205 PM EST.
Waterville around 210 PM EST.
SAFETY INFO...
Use extra caution if you must travel into or through this squall.
Rapid changes in visibility and potentially slick roads are likely to
lead to accidents. Consider delaying travel until this squall passes
your location.
&&
LAT...LON 4126 7703 4109 7762 4109 7763 4105 7774
4108 7791 4115 7804 4122 7810 4123 7818
4126 7824 4129 7823 4147 7743
TIME...MOT...LOC 1848Z 309DEG 18KT 4146 7740 4128 7820
DeVoirSpecial weather statement, Jan 22, 4:00 PM EST, 0 minutes before
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</html>The office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 22, 9:51 AM EST | Special Weather Statement | CTP | Elk, McKean | 54 min |
| Jan 22, 11:42 AM EST | Snow Squall Warning | CTP | Potter | 48 min |
| Jan 22, 11:54 AM EST | Special Weather Statement | CTP | Cameron | 66 min |
| Jan 22, 12:46 PM EST | Snow Squall Warning | CTP | Lycoming, Potter, Tioga | 44 min |
| Jan 22, 1:43 PM EST | Snow Squall Warning | CTP | Columbia, Lycoming, Sullivan, Tioga | 77 min |
| Jan 22, 1:48 PM EST | Special Weather Statement | CTP | Clinton | 57 min |
Nearby
Special Weather Statements in Pennsylvania, 2021Every special weather statement in 2021
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.