Alert archive / Pennsylvania / Snow Squall Warnings in 2025
Snow Squall Warning 3, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this snow squall warning at Feb 14, 2025, 4:28 AM EST for 4 counties in Pennsylvania. It was in force for 47 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 14, 2025, 4:28 AM EST (09:28 UTC)
- Expired
- Feb 14, 2025, 5:15 AM EST
- In force
- 47 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Berks County, PA, Bucks County, PA, Lehigh County, PA, Montgomery County, PA
The radar
The Philadelphia radar (KDIX), 93 km from the middle of the area, began a volume at 09:27 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 00:00Z, 9.5 hours before the alert went out and 215 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
- 921 m above ground
- 0-6 km bulk shear
- 110 kt
- 0-1 km storm-relative helicity
- -205 m²/s²
- 0-3 km storm-relative helicity
- -242 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
488
WWUS51 KPHI 140928
SQWPHI
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Snow Squall Warning
National Weather Service Mount Holly NJ
428 AM EST Fri Feb 14 2025
PAC011-017-077-091-141015-
/O.NEW.KPHI.SQ.W.0003.250214T0928Z-250214T1015Z/
Berks PA-Lehigh PA-Montgomery PA-Bucks PA-
428 AM EST Fri Feb 14 2025
The National Weather Service in Mount Holly NJ has issued a
* Snow Squall Warning for...
Eastern Berks County in eastern Pennsylvania...
Southeastern Lehigh County in eastern Pennsylvania...
Northeastern Montgomery County in southeastern Pennsylvania...
Central Bucks County in southeastern Pennsylvania...
* Until 515 AM EST.
* At 426 AM EST, a dangerous snow squall was located near Geryville,
or 10 miles south of Allentown, moving southeast at 35 mph.
HAZARD...Intense bursts of heavy snow and gusty winds leading to
blowing snow and rapidly falling visibility. Wind gusts
up to 35 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 36 and 51.
Interstate 78 in Pennsylvania near mile marker 62.
Locations impacted include...
Emmaus, Quakertown, Perkasie, Doylestown, Hatboro, Souderton,
Bedminster, Chalfont, Hatfield, East Greenville, Dublin, Ivyland,
Fricks, Zionsville, Richboro, Geryville, Pipersville, Gardenville,
Horsham, and Telford.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow Down! Rapid changes in visibility and road conditions are
expected with this dangerous snow squall. Be alert for sudden
near whiteout conditions.
&&
LAT...LON 4046 7565 4057 7540 4031 7489 4017 7507
TIME...MOT...LOC 0926Z 304DEG 30KT 4044 7542
SNOW SQUALL...OBSERVED
$$
Gorse3 follow-up statements
306
WWUS51 KPHI 140942
SQWPHI
Snow Squall Warning
National Weather Service Mount Holly NJ
442 AM EST Fri Feb 14 2025
PAC011-077-140951-
/O.CAN.KPHI.SQ.W.0003.000000T0000Z-250214T1015Z/
Berks PA-Lehigh PA-
442 AM EST Fri Feb 14 2025
...THE SNOW SQUALL WARNING FOR EASTERN BERKS AND SOUTHEASTERN LEHIGH
COUNTIES IS CANCELLED...
The snow squall that prompted the warning has moved out of the
warned area. Therefore, the snow squall warning has been cancelled.
LAT...LON 4040 7553 4051 7530 4031 7489 4017 7507
TIME...MOT...LOC 0941Z 304DEG 28KT 4038 7530
$$
PAC017-091-141015-
/O.CON.KPHI.SQ.W.0003.000000T0000Z-250214T1015Z/
Montgomery PA-Bucks PA-
442 AM EST Fri Feb 14 2025
...A SNOW SQUALL WARNING REMAINS IN EFFECT UNTIL 515 AM EST FOR
NORTHEASTERN MONTGOMERY AND CENTRAL BUCKS COUNTIES...
At 441 AM EST, a dangerous snow squall was located over Perkasie, or
17 miles southeast of Allentown, moving southeast at 35 mph.
HAZARD...Intense bursts of heavy snow. Gusty winds leading to
blowing snow and rapidly falling visibility. Wind gusts up
to 35 mph.
SOURCE...Radar and webcams.
IMPACT...Travel will become difficult and potentially dangerous
within minutes.
This includes Northeast Extension between mile markers 36 and 44.
Locations impacted include...
Quakertown, Perkasie, Doylestown, Hatboro, Souderton, Bedminster,
Chalfont, Hatfield, East Greenville, Dublin, Ivyland, Fricks,
Richboro, Geryville, Pipersville, Gardenville, Horsham, Telford,
Sellersville, and Pennsburg.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow Down! Rapid changes in visibility and road conditions are
expected with this dangerous snow squall. Be alert for sudden
near whiteout conditions.
&&
LAT...LON 4040 7553 4051 7530 4031 7489 4017 7507
TIME...MOT...LOC 0941Z 304DEG 28KT 4038 7530
SNOW SQUALL...OBSERVED
$$
Gorse544
WWUS51 KPHI 140957
SQWPHI
Snow Squall Warning
National Weather Service Mount Holly NJ
457 AM EST Fri Feb 14 2025
PAC017-091-141015-
/O.CON.KPHI.SQ.W.0003.000000T0000Z-250214T1015Z/
Montgomery PA-Bucks PA-
457 AM EST Fri Feb 14 2025
...A SNOW SQUALL WARNING REMAINS IN EFFECT UNTIL 515 AM EST FOR EAST
CENTRAL MONTGOMERY AND CENTRAL BUCKS COUNTIES...
At 456 AM EST, a dangerous snow squall was located over Chalfont, or
20 miles north of Philadelphia, moving southeast at 35 mph.
HAZARD...Intense bursts of heavy snow. Gusty winds leading to
blowing snow and rapidly falling visibility. Wind gusts up
to 35 mph.
SOURCE...Radar and webcams.
IMPACT...Travel will become difficult and potentially dangerous
within minutes.
Locations impacted include...
Doylestown, Hatboro, Souderton, Chalfont, Hatfield, Ivyland,
Richboro, Fricks, Gardenville, Horsham, Telford, New Britain,
Warminster Heights, Brittany Farms-Highlands, Newtown Grant, and
Montgomeryville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow Down! Rapid changes in visibility and road conditions are
expected with this dangerous snow squall.
&&
LAT...LON 4031 7535 4040 7511 4031 7489 4017 7507
TIME...MOT...LOC 0956Z 306DEG 29KT 4030 7519
SNOW SQUALL...OBSERVED
$$
Gorse221 WWUS51 KPHI 141010 SQWPHI Snow Squall Warning National Weather Service Mount Holly NJ 510 AM EST Fri Feb 14 2025 PAC017-091-141020- /O.EXP.KPHI.SQ.W.0003.000000T0000Z-250214T1015Z/ Montgomery PA-Bucks PA- 510 AM EST Fri Feb 14 2025 ...THE SNOW SQUALL WARNING FOR EAST CENTRAL MONTGOMERY AND CENTRAL BUCKS COUNTIES WILL EXPIRE AT 515 AM EST... The snow squall that prompted the warning has weakened. Therefore, the snow squall warning will be allowed to expire. LAT...LON 4031 7535 4040 7511 4031 7489 4017 7507 TIME...MOT...LOC 1010Z 304DEG 30KT 4025 7509 $$ Gorse
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 14, 3:03 AM EST | Special Weather Statement | PHI | Montgomery | 27 min |
| Feb 14, 3:22 AM EST | Special Weather Statement | PHI | Lehigh | 23 min |
| Feb 14, 3:30 AM EST | Winter Weather Advisory | PHI | Berks, Bucks, Carbon, Chester, Lehigh, Monroe and 2 more | 57 hr |
| Feb 14, 3:31 AM EST | Special Weather Statement | PHI | Montgomery | 29 min |
| Feb 14, 3:46 AM EST | Special Weather Statement | PHI | Lehigh | 29 min |
| Feb 14, 3:55 AM EST | Snow Squall Warning | PHI | Bucks, Lehigh | 35 min |
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.