Alert archive / Pennsylvania / Snow Squall Warnings in 2019
Snow Squall Warning 8, NWS State College, PA
NWS State College, PA issued this snow squall warning at Dec 18, 2019, 11:20 AM EST for Lycoming County, Sullivan County, Tioga County, Pennsylvania. It was in force for 55 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Dec 18, 2019, 11:20 AM EST (16:20 UTC)
- Expired
- Dec 18, 2019, 12:15 PM EST
- In force
- 55 min
- Issued by
- NWS State College, PA
- Area
- Storm-based polygon
Counties Lycoming County, PA, Sullivan County, PA, Tioga County, PA
The radar
The Binghamton radar (KBGM), 110 km from the middle of the area, began a volume at 16:21 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, 4.3 hours before the alert went out and 213 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
- 1343 m above ground
- 0-6 km bulk shear
- 75 kt
- 0-1 km storm-relative helicity
- -86 m²/s²
- 0-3 km storm-relative helicity
- 42 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this snow squall 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 snow squall warning went out at Dec 18, 9:57 AM EST, 1 hour 23 minutes earlier.
Area forecast discussion, Dec 18, 9:57 AM EST, 1 hour 23 minutes before
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</html>Hazardous weather outlook, Dec 18, 4:05 AM EST, 7 hours 15 minutes before
Hazardous Weather Outlook National Weather Service State College PA 405 AM EST Wed Dec 18 2019 PAZ004-005-190915- Warren-McKean- 405 AM EST Wed Dec 18 2019 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 7 AM EST THURSDAY... This Hazardous Weather Outlook is for central Pennsylvania. .DAY ONE...Today 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...Thursday through Tuesday. 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 snowfall to the National Weather Service in State College PA via the Internet or Phone. PAZ006-010-011-190915- Potter-Elk-Cameron- 405 AM EST Wed Dec 18 2019 This Hazardous Weather Outlook is for central Pennsylvania. .DAY ONE...Today and tonight. Frequent snow showers and brief heavier snow squalls today and tonight will bring total snow accumulations of 1 to 3 inches. Gusty west to northwest winds of 30 to 35 mph will cause locally reduced visibility from the combination of falling and blowing snow. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Spotters are encouraged to report snowfall to the National Weather Service in State College PA via the Internet or Phone. PAZ012-017-018-024-033-037-041-042-190915- Northern Clinton-Clearfield-Northern Centre-Cambria-Somerset-Tioga- Northern Lycoming-Sullivan- 405 AM EST Wed Dec 18 2019 This Hazardous Weather Outlook is for central Pennsylvania. .DAY ONE...Today and tonight. Frequent snow showers will occur from late this morning through the afternoon hours. Scattered snow squalls are also possible, potentially resulting in dangerous driving conditions. Total snow accumulation of 1 to 2 inches is expected by late tonight. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotters are encouraged to report snowfall to the National Weather Service in State College PA via the Internet or Phone. PAZ019-025>028-034-035-045-046-049>053-056-058-190915- Southern Centre-Blair-Huntingdon-Mifflin-Juniata-Bedford-Fulton- Southern Clinton-Southern Lycoming-Union-Snyder-Montour- Northumberland-Columbia-Perry-Schuylkill- 405 AM EST Wed Dec 18 2019 This Hazardous Weather Outlook is for central Pennsylvania. .DAY ONE...Today and tonight. Flurries and scattered snow showers will occur today and tonight. Isolated, heavy snow squalls are possible during the late morning into the mid afternoon hours today, potentially resulting in dangerous driving conditions. Localized snow accumulation of an inch or two is possible. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotters are encouraged to report snowfall to the National Weather Service in State College PA via the Internet or Phone. PAZ036-057-059-063>066-190915- Franklin-Dauphin-Lebanon-Cumberland-Adams-York-Lancaster- 405 AM EST Wed Dec 18 2019 This Hazardous Weather Outlook is for central Pennsylvania. .DAY ONE...Today and tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. Lambert
In the hours before
Special weather statement, Dec 18, 9:28 AM EST, 1 hour 52 minutes before
Special Weather Statement National Weather Service State College PA 928 AM EST Wed Dec 18 2019 PAZ004>006-010>012-017-018-037-041-042-181730- Warren-McKean-Potter-Elk-Cameron-Northern Clinton-Clearfield- Northern Centre-Tioga-Northern Lycoming-Sullivan- 928 AM EST Wed Dec 18 2019 Fast moving bands of snow showers will bring a brief burst of heavier snow to north central Pennsylvania through 1230 PM. The snow will come down hard for a brief time and gusty winds will cause poor visibility. While snow amounts will not be real heavy, the combination of the rate of fall of the snow and gusty winds will likely produce poor travel conditions at times. Persons traveling this morning should be alert for a wide range of conditions. Martin
Special weather statement, Dec 18, 10:07 AM EST, 1 hour 13 minutes before
Special Weather Statement
National Weather Service State College PA
1007 AM EST Wed Dec 18 2019
PAZ005-006-037-181600-
McKean PA-Potter PA-Tioga PA-
1007 AM EST Wed Dec 18 2019
...A BAND OF HEAVY SNOW WILL AFFECT PARTS OF MCKEAN...POTTER...AND
TIOGA COUNTIES...
HAZARDS...A band of heavy snow which can rapidly reduce visibility to
near a quarter of a mile.
LOCATION AND MOVEMENT...At 1006 AM EST, a band of heavy snow was
along a line extending from Keeneyville to near Coudersport to near
Keating Summit and moving southeast at 35 MPH.
THIS BAND OF HEAVY SNOW WILL BE NEAR...
Wellsboro and Keeneyville around 1010 AM EST.
Cherry Springs State Park around 1020 AM EST.
Lyman Run State Park around 1025 AM EST.
Mansfield and Covington around 1030 AM EST.
Galeton, Wharton and Blossburg around 1035 AM EST.
Leonard Harrison State Park around 1050 AM 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 4192 7726 4180 7690 4160 7687 4155 7696
4154 7760 4148 7760 4148 7798 4154 7812
4162 7820 4162 7831 4167 7844 4194 7809
TIME...MOT...LOC 1506Z 294DEG 29KT 4186 7730 4178 7793 4167 7828
Colbert/STSpecial weather statement, Dec 18, 10:46 AM EST, 34 minutes before
Special Weather Statement
National Weather Service State College PA
1046 AM EST Wed Dec 18 2019
PAZ010>012-181645-
Northern Clinton PA-Cameron PA-Elk PA-
1046 AM EST Wed Dec 18 2019
...A BAND OF HEAVY SNOW WILL AFFECT PARTS OF NORTHERN CLINTON...
CAMERON...AND ELK COUNTIES...
HAZARDS...A band of heavy snow which can rapidly reduce visibility to
near a quarter of a mile.
LOCATION AND MOVEMENT...At 1045 AM EST, a band of heavy snow was
along a line extending from near Kettle Creek State Park to Benezette
to near Portland Mills and moving east at 25 MPH.
THIS BAND OF HEAVY SNOW WILL BE NEAR...
Kettle Creek State Park around 1050 AM EST.
Hicks Run around 1055 AM EST.
Westport around 1105 AM EST.
Renovo around 1110 AM EST.
St. Marys and South Renovo around 1115 AM EST.
Force around 1120 AM 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 4145 7906 4145 7898 4144 7896 4150 7896
4148 7856 4144 7816 4127 7741 4118 7790
4125 7790 4121 7794 4121 7797 4117 7797
4117 7806 4122 7810 4125 7865 4122 7865
4125 7874 4126 7874 4137 7897 4134 7910
TIME...MOT...LOC 1545Z 286DEG 22KT 4136 7798 4133 7834 4137 7876
Colbert/DMThe office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 18, 3:39 AM EST | Winter Weather Advisory | CTP | McKean, Warren | 24 hr |
| Dec 18, 10:07 AM EST | Special Weather Statement | CTP | Potter, Tioga | 53 min |
| Dec 18, 10:32 AM EST | Snow Squall Warning | CTP | Potter, Tioga | 43 min |
| Dec 18, 10:46 AM EST | Special Weather Statement | CTP | Cameron, Clinton, Elk | 59 min |
| Dec 18, 11:54 AM EST | Special Weather Statement | CTP | Clinton | 66 min |
| Dec 18, 12:03 PM EST | Special Weather Statement | CTP | Centre, Clearfield | 87 min |
| Dec 18, 2:30 PM EST | Snow Squall Warning | CTP | Blair, Cambria, Huntingdon, Juniata, Mifflin | 75 min |
| Dec 18, 3:53 PM EST | Special Weather Statement | CTP | Bedford, Fulton, Huntingdon, Juniata, Somerset | 52 min |
Nearby
Snow Squall Warnings in Pennsylvania, 2019Every snow squall warning in 2019
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.