Alert archive / Pennsylvania / Snow Squall Warnings in 2024
Snow Squall Warning 19, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this snow squall warning at Feb 17, 2024, 3:10 PM EST for 4 counties in Pennsylvania. It was in force for 50 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, 3:10 PM EST (20:10 UTC)
- Expired
- Feb 17, 2024, 4:00 PM EST
- In force
- 50 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Damage threat
- Significant
Counties Carbon County, PA, Lehigh County, PA, Monroe County, PA, Northampton County, PA
The radar
The Binghamton radar (KBGM), 137 km from the middle of the area, began a volume at 20:13 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, 8.2 hours before the alert went out and 221 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
- 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
The text
As transmitted.
881
WWUS51 KPHI 172010
SQWPHI
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Snow Squall Warning
National Weather Service Mount Holly NJ
310 PM EST Sat Feb 17 2024
PAC025-077-089-095-172100-
/O.NEW.KPHI.SQ.W.0019.240217T2010Z-240217T2100Z/
Lehigh PA-Carbon PA-Monroe PA-Northampton PA-
310 PM EST Sat Feb 17 2024
The National Weather Service in Mount Holly NJ has issued a
* Snow Squall Warning for...
Northwestern Lehigh County in eastern Pennsylvania...
Carbon County in northeastern Pennsylvania...
Monroe County in northeastern Pennsylvania...
West central Northampton County in eastern Pennsylvania...
* Until 400 PM EST.
* At 309 PM EST, a dangerous snow squall was located near Weatherly,
or 9 miles north of Lehighton, moving southeast at 55 mph.
HAZARD...Flash freeze on roads. Intense bursts of heavy snow and
gusty winds leading to blowing snow and visibility
rapidly falling to less than one-quarter mile. Wind gusts
up to 35 mph.
SOURCE...Radar and webcams.
IMPACT...Dangerous and life-threatening travel conditions are
expected to develop rapidly in the warning area.
This includes the following highways...
Northeast Extension between mile markers 70 and 97.
Interstate 80 in Pennsylvania between mile markers 277 and 314.
Interstate 380 in Pennsylvania between mile markers 0 and 13.
Locations impacted include...
Lehighton, Mount Pocono, East Stroudsburg, Tobyhanna, Palmerton, Jim
Thorpe, Slatington, Nesquehoning, Weatherly, Delaware Water Gap,
Stormville, Werry Lake, Pocono Pines, Lake Harmony, Skytop,
Tannersville, Long Pond, Kresgeville, Sun Valley, and Reeders.
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.
Consider avoiding or delaying travel until the snow squall passes
your location. If you must travel, use extra caution and allow extra
time. Rapid changes in visibility and slick road conditions may lead
to accidents.
&&
LAT...LON 4115 7515 4114 7509 4108 7503 4108 7499
4083 7538 4072 7576 4072 7579 4073 7577
4091 7599 4101 7573 4105 7577 4109 7577
4113 7569 4112 7564 4123 7554 4125 7513
TIME...MOT...LOC 2009Z 309DEG 47KT 4096 7574
SNOW SQUALL...OBSERVED
SNOW SQUALL IMPACT...SIGNIFICANT
$$
WunderlinThe 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 | Berks, Lehigh | 59 min |
| Feb 17, 2:02 AM EST | Special Weather Statement | PHI | Berks, Lehigh | 58 min |
| Feb 17, 2:08 PM EST | Snow Squall Warning | PHI | Carbon, Lehigh, Monroe, Northampton | 37 min |
| Feb 17, 2:17 PM EST | Snow Squall Warning | PHI | Carbon, Monroe, Northampton | 28 min |
| Feb 17, 2:24 PM EST | Snow Squall Warning | PHI | Carbon, Monroe, Northampton | 21 min |
| Feb 17, 2:26 PM EST | Snow Squall Warning | PHI | Berks, Bucks, Lehigh, Montgomery | 34 min |
| Feb 17, 2:42 PM EST | Snow Squall Warning | PHI | Carbon, Lehigh, Monroe, Northampton | 33 min |
| Feb 17, 2:48 PM EST | Snow Squall Warning | PHI | Carbon, Monroe, Northampton | 27 min |
| Feb 17, 2:57 PM EST | Snow Squall Warning | PHI | Berks, Bucks, Lehigh, Montgomery, Northampton | 33 min |
| Feb 17, 3:17 PM EST | Snow Squall Warning | PHI | Monroe, Northampton | 43 min |
| Feb 17, 3:28 PM EST | Snow Squall Warning | PHI | Berks, Bucks, Carbon, Lehigh, Montgomery, Northampton | 47 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, 4:09 PM EST | Snow Squall Warning | PHI | Lehigh, Northampton | 36 min |
| Feb 17, 4:14 PM EST | Snow Squall Warning | PHI | Bucks | 21 min |
| Feb 17, 4:16 PM EST | Snow Squall Warning | PHI | Berks, Bucks, Chester, Lehigh, Montgomery | 29 min |
| Feb 17, 4:44 PM EST | Snow Squall Warning | PHI | Carbon, Lehigh, Monroe, Northampton | 46 min |
| Feb 17, 5:27 PM EST | Snow Squall Warning | PHI | Carbon, Lehigh, Monroe, Northampton | 48 min |
Nearby
Snow Squall Warnings in Pennsylvania, 2024Every 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.