Alert archive / Pennsylvania / Snow Squall Warnings in 2020
Snow Squall Warning 15, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this snow squall warning at Feb 29, 2020, 10:21 AM EST for Carbon County, Monroe County, Pennsylvania; Sussex County, New Jersey. It was in force for 39 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 29, 2020, 10:21 AM EST (15:21 UTC)
- Expired
- Feb 29, 2020, 11:00 AM EST
- In force
- 39 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Sussex County, NJ, Carbon County, PA, Monroe County, PA
The radar
The Binghamton radar (KBGM), 137 km from the middle of the area, began a volume at 15:22 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, 3.4 hours before the alert went out and 198 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
- 1458 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- -15 m²/s²
- 0-3 km storm-relative helicity
- 51 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
296
WWUS51 KPHI 291522
SQWPHI
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Snow Squall Warning
National Weather Service Mount Holly NJ
1021 AM EST Sat Feb 29 2020
NJC037-PAC025-089-291600-
/O.NEW.KPHI.SQ.W.0015.200229T1521Z-200229T1600Z/
Sussex NJ-Carbon PA-Monroe PA-
1021 AM EST Sat Feb 29 2020
The National Weather Service in Mount Holly NJ has issued a
* Snow Squall Warning for...
Northern Sussex County in northwestern New Jersey...
Carbon County in northeastern Pennsylvania...
Monroe County in northeastern Pennsylvania...
* Until 1100 AM EST.
* At 1021 AM EST, a dangerous snow squall was located along a line
extending from near Highland Lake to near Blooming Grove to near
Sugar Notch, moving southeast at 25 mph.
HAZARD...Poor visibility in snow and blowing snow. Wind gusts up
to 30 mph.
SOURCE...Radar and webcams.
IMPACT...Expect hazardous road conditions.
* This includes the following highways...
Interstate 80 in Pennsylvania between mile markers 278 and 314.
Northeast Extension between exits A87 and A95.
Interstate 380 in Pennsylvania between mile markers 0 and 13.
Locations impacted include...
Lehighton, Montague, Mount Pocono, East Stroudsburg, Tobyhanna, Jim
Thorpe, Nesquehoning, Hamburg, Weatherly, Sussex, Branchville,
Delaware Water Gap, High Point, Werry Lake, Pocono Pines, Lake
Harmony, Skytop, Vernon Valley, Tannersville and Long Pond.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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 4120 7437 4105 7491 4109 7496 4099 7512
4080 7586 4091 7599 4101 7573 4109 7577
4113 7569 4112 7564 4123 7554 4125 7513
4115 7515 4114 7509 4108 7503 4116 7490
4132 7480 4136 7469
TIME...MOT...LOC 1521Z 302DEG 22KT 4154 7482 4133 7522 4117 7597
$$
Staarmann1 follow-up statement
416
WWUS51 KPHI 291548
SQWPHI
Snow Squall Warning
National Weather Service Mount Holly NJ
1047 AM EST Sat Feb 29 2020
NJC037-PAC025-089-291600-
/O.CON.KPHI.SQ.W.0015.000000T0000Z-200229T1600Z/
Sussex NJ-Carbon PA-Monroe PA-
1047 AM EST Sat Feb 29 2020
...A SNOW SQUALL WARNING REMAINS IN EFFECT UNTIL 1100 AM EST FOR
NORTHERN SUSSEX...NORTHEASTERN CARBON AND MONROE COUNTIES...
At 1047 AM EST, a dangerous snow squall was located along a line
extending from near Millrift to near Pecks Pond to near White Haven,
moving southeast at 25 mph.
HAZARD...Poor visibility in snow and blowing snow. Wind gusts up to
30 mph.
SOURCE...Radar and webcams.
IMPACT...Expect hazardous road conditions.
This includes the following highways...
Interstate 80 in Pennsylvania between mile markers 278 and 314.
Northeast Extension between exits A87 and A95.
Interstate 380 in Pennsylvania between mile markers 0 and 10.
Locations impacted include...
Montague, Mount Pocono, East Stroudsburg, Tobyhanna, Jim Thorpe,
Hamburg, Weatherly, Sussex, Branchville, Delaware Water Gap, High
Point, Werry Lake, Pocono Pines, Lake Harmony, Skytop, Vernon Valley,
Tannersville, Long Pond, Kresgeville and Sun Valley.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Consider avoiding or delaying travel until the snow squall passes
your location. If you must travel, use extra caution and allow extra
time. Rapid changes in visibility and slick road conditions may lead
to accidents.
&&
LAT...LON 4084 7569 4097 7584 4101 7573 4109 7577
4113 7569 4112 7564 4118 7559 4124 7528
4125 7513 4115 7515 4114 7509 4108 7503
4116 7490 4132 7480 4136 7469 4120 7437
4105 7491 4109 7496 4099 7512
TIME...MOT...LOC 1547Z 303DEG 22KT 4144 7469 4123 7509 4107 7584
$$
StaarmannThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 29, 11:05 AM EST | Snow Squall Warning | PHI | Carbon, Lehigh, Monroe, Northampton | 55 min |
| Feb 29, 12:50 PM EST | Special Weather Statement | PHI | Warren | 25 min |
| Feb 29, 1:09 PM EST | Special Weather Statement | PHI | Morris | 36 min |
| Feb 29, 1:29 PM EST | Special Weather Statement | PHI | Warren | 46 min |
Nearby
Snow Squall Warnings in Pennsylvania, 2020Snow Squall Warnings in New Jersey, 2020Every snow squall warning in 2020
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.