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 16, 2021, 6:18 PM EST for Blair County, Pennsylvania. It was in force for 27 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 16, 2021, 6:18 PM EST (23:18 UTC)
- Expired
- Jan 16, 2021, 6:45 PM EST
- In force
- 27 min
- Issued by
- NWS State College, PA
County Blair County, PA
The radar
The State College radar (KCCX), 75 km from the middle of the area, began a volume at 23:20 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
Pittsburgh, PA (KPIT), launched 12:00Z, 11.3 hours before the alert went out and 141 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
- 678 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- -17 m²/s²
- 0-3 km storm-relative helicity
- 25 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 16, 3:46 PM EST, 2 hours 32 minutes earlier.
Area forecast discussion, Jan 16, 3:46 PM EST, 2 hours 32 minutes before
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</html>Hazardous weather outlook, Jan 16, 1:56 PM EST, 4 hours 22 minutes before
Hazardous Weather Outlook National Weather Service State College PA 156 PM EST Sat Jan 16 2021 PAZ004>006-010>012-017-018-025-034-037-041-042-171900- Warren-McKean-Potter-Elk-Cameron-Northern Clinton-Clearfield- Northern Centre-Blair-Bedford-Tioga-Northern Lycoming-Sullivan- 156 PM EST Sat Jan 16 2021 This Hazardous Weather Outlook is for central Pennsylvania. .DAY ONE...This afternoon and tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Sunday through Friday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. PAZ019-026>028-035-036-045-046-049>053-056>059-063>066-171900- Southern Centre-Huntingdon-Mifflin-Juniata-Fulton-Franklin- Southern Clinton-Southern Lycoming-Union-Snyder-Montour- Northumberland-Columbia-Perry-Dauphin-Schuylkill-Lebanon-Cumberland- Adams-York-Lancaster- 156 PM EST Sat Jan 16 2021 This Hazardous Weather Outlook is for central Pennsylvania. .DAY ONE...This afternoon and tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Sunday through Friday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. PAZ024-033-171900- Cambria-Somerset- 156 PM EST Sat Jan 16 2021 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 7 AM EST SUNDAY... This Hazardous Weather Outlook is for central Pennsylvania. .DAY ONE...This afternoon and tonight. Please listen to NOAA Weather Radio or go to weather.gov/StateCollege on the internet for more information about the following hazards. Winter Weather Advisory. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Please listen to NOAA Weather Radio or go to weather.gov/StateCollege on the internet for more information about the following hazards. Winter Weather Advisory. .SPOTTER INFORMATION STATEMENT... Spotters are encouraged to report significant hazardous weather. Lambert
In the hours before
Special weather statement, Jan 16, 12:31 PM EST, 5 hours 47 minutes before
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</html>Special weather statement, Jan 16, 2:26 PM EST, 3 hours 52 minutes before
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</html>Local storm report, Jan 16, 3:34 PM EST, 2 hours 44 minutes before
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</html>Special weather statement, Jan 16, 6:18 PM EST, 0 minutes before
Special Weather Statement
National Weather Service State College PA
618 PM EST Sat Jan 16 2021
PAZ025-162345-
Blair PA-
618 PM EST Sat Jan 16 2021
...A SNOW SQUALL WILL AFFECT SOUTHERN BLAIR COUNTY...
HAZARDS...A snow squall which can rapidly reduce visibility to a
quarter of a mile.
LOCATION AND MOVEMENT...At 617 PM EST, a snow squall was over Roaring
Spring moving east at 30 MPH.
THIS SQUALL WILL BE NEAR...
Roaring Spring around 620 PM EST.
Martinsburg and Royer around 630 PM EST.
This includes Interstate 99 from mile markers 16 to 28.
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 4026 7833 4030 7843 4029 7844 4027 7844
4033 7862 4035 7861 4037 7856 4042 7856
4047 7852 4041 7818 4025 7829
TIME...MOT...LOC 2317Z 286DEG 25KT 4035 7843
KFThe office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 16, 12:31 PM EST | Special Weather Statement | CTP | Cambria, Somerset | 119 min |
| Jan 16, 1:53 PM EST | Winter Weather Advisory | CTP | Cambria, Somerset | 17 hr |
| Jan 16, 2:26 PM EST | Special Weather Statement | CTP | Bedford, Cambria | 64 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.