Alert archive / Pennsylvania / Snow Squall Warnings in 2020
Snow Squall Warning 2, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this snow squall warning at Jan 8, 2020, 7:49 AM EST for Carbon County, Monroe County, Northampton County, Pennsylvania; Warren County, New Jersey. It was in force for 41 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 8, 2020, 7:49 AM EST (12:49 UTC)
- Expired
- Jan 8, 2020, 8:30 AM EST
- In force
- 41 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Warren County, NJ, Carbon County, PA, Monroe County, PA, Northampton County, PA
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 0.8 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 864 m above ground
- 0-6 km bulk shear
- 75 kt
- 0-1 km storm-relative helicity
- 35 m²/s²
- 0-3 km storm-relative helicity
- 123 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
679
WWUS51 KPHI 081249
SQWPHI
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Snow Squall Warning
National Weather Service Mount Holly NJ
749 AM EST Wed Jan 8 2020
NJC041-PAC025-089-095-081330-
/O.NEW.KPHI.SQ.W.0002.200108T1249Z-200108T1330Z/
Warren NJ-Carbon PA-Monroe PA-Northampton PA-
749 AM EST Wed Jan 8 2020
The National Weather Service in Mount Holly NJ has issued a
* Snow Squall Warning for...
Northwestern Warren County in northwestern New Jersey...
Northeastern Carbon County in northeastern Pennsylvania...
Monroe County in northeastern Pennsylvania...
Northeastern Northampton County in eastern Pennsylvania...
* Until 830 AM EST.
* At 749 AM EST, a dangerous snow squall was located along a line
extending from Moscow to Fairview Heights, moving east at 45 mph.
HAZARD...Extremely poor visibility in heavy snow.
SOURCE...Radar and webcams.
IMPACT...Dangerous life-threatening travel.
* This includes the following highways...
Interstate 80 in New Jersey between mile markers 0 and 4.
Interstate 80 in Pennsylvania between mile markers 278 and 314.
Northeast Extension near exit A95.
Interstate 380 in Pennsylvania between mile markers 0 and 12.
Locations impacted include...
Mount Pocono, East Stroudsburg, Tobyhanna, Stormville, Henryville,
Werry Lake, Pocono Pines, Pocono Raceway, Lake Harmony, Delaware
Water Gap, Skytop, Tannersville, Mountainhome, Alpine Mountain, Long
Pond, Albrightsville, Sun Valley, Arrowhead Lake, Reeders and
Analomink.
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.
There is no safe place on a highway when a snow squall hits.
Visibility and traction are immediately lost in whiteout conditions,
making it difficult or impossible to slow down and avoid stopped
vehicles. Delay travel or safely exit the highway before the snow
squall arrives.
&&
LAT...LON 4115 7515 4114 7509 4108 7503 4109 7499
4088 7512 4106 7577 4108 7577 4113 7569
4112 7564 4123 7554 4122 7551 4123 7551
4125 7513
TIME...MOT...LOC 1249Z 275DEG 37KT 4132 7553 4115 7591
$$
JEO2 follow-up statements
472
WWUS51 KPHI 081318
SQWPHI
Snow Squall Warning
National Weather Service Mount Holly NJ
817 AM EST Wed Jan 8 2020
PAC025-081327-
/O.CAN.KPHI.SQ.W.0002.000000T0000Z-200108T1330Z/
Carbon PA-
817 AM EST Wed Jan 8 2020
...THE SNOW SQUALL WARNING FOR NORTHEASTERN CARBON COUNTY IS
CANCELLED...
The snow squall which prompted the warning has moved out of the
warned area. Therefore, the snow squall warning has been cancelled.
LAT...LON 4115 7515 4114 7509 4108 7503 4109 7499
4088 7512 4112 7565 4118 7558 4123 7554
4122 7551 4123 7551 4125 7513
TIME...MOT...LOC 1317Z 275DEG 37KT 4130 7522 4113 7560
$$
NJC041-PAC089-095-081330-
/O.CON.KPHI.SQ.W.0002.000000T0000Z-200108T1330Z/
Warren NJ-Monroe PA-Northampton PA-
817 AM EST Wed Jan 8 2020
...A SNOW SQUALL WARNING REMAINS IN EFFECT UNTIL 830 AM EST FOR
NORTHWESTERN WARREN...MONROE AND NORTHEASTERN NORTHAMPTON COUNTIES...
At 817 AM EST, a dangerous snow squall was located along a line
extending from near Skytop to Stoddartsville, moving east at 45 mph.
HAZARD...Extremely poor visibility in heavy snow.
SOURCE...Radar and webcams.
IMPACT...Dangerous life-threatening travel.
This includes the following highways...
Interstate 80 in New Jersey between mile markers 0 and 4.
Interstate 80 in Pennsylvania between mile markers 289 and 314.
Interstate 380 in Pennsylvania between mile markers 0 and 12.
Locations impacted include...
Mount Pocono, East Stroudsburg, Tobyhanna, Stormville, Henryville,
Werry Lake, Pocono Pines, Pocono Raceway, Delaware Water Gap, Skytop,
Tannersville, Mountainhome, Alpine Mountain, Long Pond, Arrowhead
Lake, Stoddartsville, Reeders, Analomink, Canadensis and Scotrun.
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.
There is no safe place on a highway when a snow squall hits.
Visibility and traction are immediately lost in whiteout conditions,
making it difficult or impossible to slow down and avoid stopped
vehicles. Delay travel or safely exit the highway before the snow
squall arrives.
&&
LAT...LON 4115 7515 4114 7509 4108 7503 4109 7499
4088 7512 4112 7565 4118 7558 4123 7554
4122 7551 4123 7551 4125 7513
TIME...MOT...LOC 1317Z 275DEG 37KT 4130 7522 4113 7560
$$
JEO473
WWUS51 KPHI 081327
SQWPHI
Snow Squall Warning
National Weather Service Mount Holly NJ
826 AM EST Wed Jan 8 2020
NJC041-PAC089-095-081336-
/O.EXP.KPHI.SQ.W.0002.000000T0000Z-200108T1330Z/
Warren NJ-Monroe PA-Northampton PA-
826 AM EST Wed Jan 8 2020
...THE SNOW SQUALL WARNING FOR NORTHWESTERN WARREN...MONROE AND
NORTHEASTERN NORTHAMPTON COUNTIES WILL EXPIRE AT 830 AM EST...
The snow squall which prompted the warning has exited the area.
Therefore, the snow squall warning will be allowed to expire. Roads
will remain snow covered.
LAT...LON 4115 7515 4114 7509 4108 7503 4109 7499
4088 7512 4112 7565 4118 7558 4123 7554
4122 7551 4123 7551 4125 7513
TIME...MOT...LOC 1326Z 275DEG 37KT 4130 7517 4113 7555
$$
JEOThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 8, 7:44 AM EST | Snow Squall Warning | PHI | Chester | 46 min |
| Jan 8, 8:28 AM EST | Snow Squall Warning | PHI | Berks, Bucks, Chester, Delaware, Montgomery | 47 min |
| Jan 8, 8:28 AM EST | Snow Squall Warning | PHI | Chester, Delaware, Montgomery, Philadelphia | 47 min |
| Jan 8, 8:30 AM EST | Snow Squall Warning | PHI | Monroe | 45 min |
| Jan 8, 11:25 AM EST | Snow Squall Warning | PHI | Berks | 35 min |
| Jan 8, 12:07 PM EST | Special Weather Statement | PHI | Montgomery | 23 min |
| Jan 8, 12:38 PM EST | Special Weather Statement | PHI | Montgomery, Philadelphia | 37 min |
| Jan 8, 12:49 PM EST | Snow Squall Warning | PHI | Chester, Delaware, Montgomery, Philadelphia | 26 min |
| Jan 8, 1:48 PM EST | Snow Squall Warning | PHI | Carbon, Monroe | 42 min |
| Jan 8, 2:05 PM EST | Special Weather Statement | PHI | Montgomery | 25 min |
| Jan 8, 2:32 PM EST | Special Weather Statement | PHI | Carbon, Northampton | 28 min |
| Jan 8, 2:33 PM EST | Special Weather Statement | PHI | Philadelphia | 27 min |
| Jan 8, 2:46 PM EST | Special Weather Statement | PHI | Berks | 44 min |
| Jan 8, 3:05 PM EST | Special Weather Statement | PHI | Northampton | 40 min |
| Jan 8, 8:48 AM EST | Snow Squall Warning | PHI | Hunterdon, Middlesex, Morris, Somerset, Warren | 42 min |
| Jan 8, 9:14 AM EST | Snow Squall Warning | PHI | Atlantic, Burlington, Camden, Cumberland, Gloucester, Salem | 46 min |
| Jan 8, 9:57 AM EST | Special Weather Statement | PHI | Atlantic | 33 min |
| Jan 8, 1:08 PM EST | Snow Squall Warning | PHI | Burlington, Camden | 37 min |
| Jan 8, 2:10 PM EST | Special Weather Statement | PHI | Sussex | 35 min |
| Jan 8, 2:18 PM EST | Snow Squall Warning | PHI | Morris, Sussex | 42 min |
| Jan 8, 4:24 PM EST | Special Weather Statement | PHI | Warren | 36 min |
| Jan 8, 6:10 PM EST | Small Craft Advisory | PHI | 13 hr |
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.