Alert archive / Pennsylvania / Snow Squall Warnings in 2024

Snow Squall Warning 13, NWS Philadelphia/Mount Holly

February 17, 2024Sussex County, Warren County, New Jersey; Carbon County, Monroe County, Northampton County, Pennsylvania

NWS Philadelphia/Mount Holly issued this snow squall warning at Feb 17, 2024, 2:17 PM EST for Sussex County, Warren County, New Jersey; Carbon County, Monroe County, Northampton County, Pennsylvania. It was in force for 28 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: Feb 17, 2024, 2:17 PM EST (19:17 UTC)
Expired: Feb 17, 2024, 2:45 PM EST
In force: 28 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon

Counties Sussex County, NJ, Warren County, NJ, Carbon County, PA, Monroe County, PA, Northampton County, PA

The radar

The Binghamton radar (KBGM), 134 km from the middle of the area, began a volume at 19:20 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

Brookhaven, NY (KOKX), launched 12:00Z, 7.3 hours before the alert went out and 212 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: 650 m above ground
0-6 km bulk shear: 86 kt
0-1 km storm-relative helicity: 225 m²/s²
0-3 km storm-relative helicity: 248 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

222 
WWUS51 KPHI 171917
SQWPHI

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Snow Squall Warning
National Weather Service Mount Holly NJ
217 PM EST Sat Feb 17 2024

NJC037-041-PAC025-089-095-171945-
/O.NEW.KPHI.SQ.W.0013.240217T1917Z-240217T1945Z/
Sussex NJ-Warren NJ-Carbon PA-Monroe PA-Northampton PA-
217 PM EST Sat Feb 17 2024

The National Weather Service in Mount Holly NJ has issued a

* Snow Squall Warning for...
  Southwestern Sussex County in northwestern New Jersey...
  Northern Warren County in northwestern New Jersey...
  Northeastern Carbon County in northeastern Pennsylvania...
  Monroe County in northeastern Pennsylvania...
  Northeastern Northampton County in eastern Pennsylvania...

* Until 245 PM EST.

* At 216 PM EST, a dangerous snow squall was located over Pocono
  Pines, or near Mount Pocono, moving southeast at 50 mph.

  HAZARD...Flash freeze on roads. Intense bursts of heavy snow and 
           gusty winds leading to blowing snow and rapidly falling 
           visibility. Wind gusts up to 35 mph.

  SOURCE...Radar indicated.

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

This includes the following highways...
 Northeast Extension between mile markers 85 and 97.
 Interstate 80 in Pennsylvania between mile markers 277 and 314.
 Interstate 80 in New Jersey between mile markers 0 and 10.
 Interstate 380 in Pennsylvania between mile markers 0 and 13.

Locations impacted include...
Mount Pocono, East Stroudsburg, Tobyhanna, Blairstown, Bangor, Pen
Argyl, Wind Gap, East Bangor, Stormville, Werry Lake, Pocono Pines,
Millbrook, Lake Harmony, Skytop, Tannersville, Long Pond,
Kresgeville, Sun Valley, Reeders, and Saylorsburg.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Wet roadways will quickly freeze. Black ice will cause roads,
bridges, and overpasses to become slick and dangerous. Slow down and
be prepared for a sudden loss of traction.

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 4112 7496
      4097 7486 4081 7538 4100 7575 4101 7573
      4105 7577 4109 7577 4113 7569 4112 7564
      4123 7554 4125 7513
TIME...MOT...LOC 1916Z 312DEG 42KT 4109 7548 

SNOW SQUALL...RADAR INDICATED

$$

Wunderlin

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 17, 12:46 AM EST	Special Weather Statement	PHI	Hunterdon, Somerset	59 min
Feb 17, 1:09 AM EST	Special Weather Statement	PHI	Middlesex	66 min
Feb 17, 2:02 AM EST	Special Weather Statement	PHI	Hunterdon, Middlesex, Somerset	58 min
Feb 17, 2:24 PM EST	Snow Squall Warning	PHI	Sussex, Warren	21 min
Feb 17, 2:42 PM EST	Snow Squall Warning	PHI	Warren	33 min
Feb 17, 2:48 PM EST	Snow Squall Warning Significant damage threat	PHI	Hunterdon, Morris, Sussex, Warren	27 min
Feb 17, 3:17 PM EST	Snow Squall Warning Significant damage threat	PHI	Hunterdon, Morris, Warren	43 min
Feb 17, 3:28 PM EST	Snow Squall Warning Significant damage threat	PHI	Hunterdon	47 min
Feb 17, 4:09 PM EST	Snow Squall Warning	PHI	Warren	36 min
Feb 17, 4:14 PM EST	Snow Squall Warning	PHI	Hunterdon	21 min
Feb 17, 4:44 PM EST	Snow Squall Warning Significant damage threat	PHI	Warren	46 min
Feb 17, 5:01 PM EST	Snow Squall Warning	PHI	Hunterdon, Morris, Warren	29 min
Feb 17, 5:17 PM EST	Snow Squall Warning	PHI	Hunterdon, Morris, Somerset	28 min
Feb 17, 5:27 PM EST	Snow Squall Warning Significant damage threat	PHI	Hunterdon, Warren	48 min
Feb 17, 2:08 PM EST	Snow Squall Warning	PHI	Carbon, Lehigh, Monroe, Northampton	37 min
Feb 17, 2:26 PM EST	Snow Squall Warning	PHI	Berks, Bucks, Lehigh, Montgomery	34 min
Feb 17, 2:57 PM EST	Snow Squall Warning Significant damage threat	PHI	Berks, Bucks, Lehigh, Montgomery, Northampton	33 min
Feb 17, 3:10 PM EST	Snow Squall Warning Significant damage threat	PHI	Carbon, Lehigh, Monroe, Northampton	50 min
Feb 17, 3:31 PM EST	Snow Squall Warning	PHI	Berks	44 min
Feb 17, 3:57 PM EST	Snow Squall Warning	PHI	Carbon, Monroe	48 min
Feb 17, 4:16 PM EST	Snow Squall Warning	PHI	Berks, Bucks, Chester, Lehigh, Montgomery	29 min

Nearby

Snow Squall Warnings in Pennsylvania, 2024 Snow Squall Warnings in New Jersey, 2024 Every snow squall warning in 2024

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.