Alert archive / Pennsylvania / Snow Squall Warnings in 2025

Snow Squall Warning 1, NWS Philadelphia/Mount Holly

January 28, 2025Carbon County, Monroe County, Pennsylvania

NWS Philadelphia/Mount Holly issued this snow squall warning at Jan 28, 2025, 8:39 AM EST for Carbon County, Monroe County, Pennsylvania. It was in force for 51 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 28, 2025, 8:39 AM EST (13:39 UTC)
Expired
Jan 28, 2025, 9:30 AM EST
In force
51 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon

Counties Carbon County, PA, Monroe County, PA

The radar

The Binghamton radar (KBGM), 133 km from the middle of the area, began a volume at 13:38 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

Brookhaven, NY (KOKX), launched 12:00Z, 1.7 hours before the alert went out and 214 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-pSkew-T log-p diagram, Brookhaven, NY at 12:00Z on 2025-01-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 12:00Z on 2025-01-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 50 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
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
1977 m above ground
0-6 km bulk shear
90 kt
0-1 km storm-relative helicity
50 m²/s²
0-3 km storm-relative helicity
98 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

965 
WWUS51 KPHI 281339
SQWPHI

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Snow Squall Warning
National Weather Service Mount Holly NJ
839 AM EST Tue Jan 28 2025

PAC025-089-281430-
/O.NEW.KPHI.SQ.W.0001.250128T1339Z-250128T1430Z/
Carbon PA-Monroe PA-
839 AM EST Tue Jan 28 2025

The National Weather Service in Mount Holly NJ has issued a

* Snow Squall Warning for...
  Northeastern Carbon County in northeastern Pennsylvania...
  Monroe County in northeastern Pennsylvania...

* Until 930 AM EST.

* At 837 AM EST, a dangerous snow squall was located along a line
  extending from near Greeley to near Lehigh to Edwardsville, moving
  southeast at 45 mph.

  HAZARD...Intense bursts of heavy snow and gusty winds leading to 
           blowing snow and rapidly falling visibility. Wind gusts 
           up to 40 mph.

  SOURCE...Radar and webcams.

  IMPACT...Travel will become difficult and potentially dangerous 
           within minutes.

This includes the following highways...
 Northeast Extension between mile markers 82 and 97.
 Interstate 80 in Pennsylvania between mile markers 277 and 314.
 Interstate 380 in Pennsylvania between mile markers 0 and 12.

Locations impacted include...
Mount Pocono, East Stroudsburg, Tobyhanna, Delaware Water Gap,
Stormville, Henryville, Brodheadsville, Kunkletown, Werry Lake,
Pocono Pines, Gilbert, Pocono Raceway, Lake Harmony, Skytop,
Tannersville, Mountainhome, Alpine Mountain, Rossland, Long Pond, and
Albrightsville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow Down! Rapid changes in visibility and road conditions are
expected with this dangerous snow squall. Be alert for sudden
whiteout conditions.

&&

LAT...LON 4115 7515 4114 7509 4108 7503 4109 7497
      4105 7503 4081 7545 4098 7580 4101 7573
      4105 7577 4109 7577 4113 7569 4112 7564
      4122 7554 4125 7513
TIME...MOT...LOC 1337Z 305DEG 37KT 4139 7498 4129 7543 4126 7590 

SNOW SQUALL...OBSERVED

$$

Gorse
2 follow-up statements
509 
WWUS51 KPHI 281403
SQWPHI

Snow Squall Warning
National Weather Service Mount Holly NJ
903 AM EST Tue Jan 28 2025

PAC025-089-281430-
/O.CON.KPHI.SQ.W.0001.000000T0000Z-250128T1430Z/
Carbon PA-Monroe PA-
903 AM EST Tue Jan 28 2025

...A SNOW SQUALL WARNING REMAINS IN EFFECT UNTIL 930 AM EST FOR
NORTHEASTERN CARBON AND MONROE COUNTIES...

At 903 AM EST, a dangerous snow squall was located along a line
extending from near Dingmans Ferry to Pocono Pines to near Freeland,
moving southeast at 25 mph.

HAZARD...Intense bursts of heavy snow. Gusty winds leading to 
         blowing snow and rapidly falling visibility. Wind gusts up 
         to 40 mph.

SOURCE...Radar indicated.

IMPACT...Travel will become difficult and potentially dangerous 
         within minutes.

This includes the following highways...
 Northeast Extension between mile markers 82 and 97.
 Interstate 80 in Pennsylvania between mile markers 277 and 314.
 Interstate 380 in Pennsylvania between mile markers 0 and 12.

Locations impacted include...
Mount Pocono, East Stroudsburg, Tobyhanna, Delaware Water Gap,
Stormville, Henryville, Brodheadsville, Kunkletown, Werry Lake,
Pocono Pines, Gilbert, Pocono Raceway, Lake Harmony, Skytop,
Tannersville, Mountainhome, Alpine Mountain, Rossland, Long Pond, and
Albrightsville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow Down! Rapid changes in visibility and road conditions are
expected with this dangerous snow squall. Be alert for sudden
whiteout conditions.

&&

LAT...LON 4115 7515 4114 7509 4108 7503 4109 7497
      4105 7503 4081 7545 4098 7580 4101 7573
      4105 7577 4109 7577 4113 7569 4112 7564
      4122 7554 4125 7513
TIME...MOT...LOC 1403Z 330DEG 21KT 4121 7498 4111 7543 4108 7590 

SNOW SQUALL...RADAR INDICATED

$$

Gorse
944 
WWUS51 KPHI 281427
SQWPHI

Snow Squall Warning
National Weather Service Mount Holly NJ
927 AM EST Tue Jan 28 2025

PAC025-089-281436-
/O.EXP.KPHI.SQ.W.0001.000000T0000Z-250128T1430Z/
Carbon PA-Monroe PA-
927 AM EST Tue Jan 28 2025

...THE SNOW SQUALL WARNING FOR NORTHEASTERN CARBON AND MONROE
COUNTIES WILL EXPIRE AT 930 AM EST...

The snow squall that prompted the warning continues to gradually 
weaken. Therefore, the snow squall warning will be allowed to 
expire. Some roads will remain slippery along with some reduced 
visibility as snow showers continue in portions of the warned area.

LAT...LON 4115 7515 4114 7509 4108 7503 4109 7497
      4105 7503 4081 7545 4098 7580 4101 7573
      4105 7577 4109 7577 4113 7569 4112 7564
      4122 7554 4125 7513
TIME...MOT...LOC 1426Z 305DEG 37KT 4110 7478 4100 7523 4097 7570 

$$

Gorse

The office that day

Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 28, 1:18 PM ESTWind AdvisoryPHIBerks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more29 hr

Nearby

Snow Squall Warnings in Pennsylvania, 2025Every snow squall warning in 2025

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.