935 AM EST Wed Mar 7 2018 ...INCREASING SNOWFALL RATES BY LATER THIS MORNING AND ESPECIALLY THIS AFTERNOON... Bands of very heavy snow with rates of nearly 2 inches per hour will develop across the region by later this morning and especially this afternoon. This will quickly turn any wet pavement into slush and then snow covered, resulting in very hazardous or impossible travel on all unplowed roads by late this afternoon. Visibility will be significantly reduced at times to a quarter mile or less and northerly winds will become gusty. This is when tree limbs may break or some trees are uprooted, especially where temperatures hover near 32 degrees. The result would be additional power outages. As snowfall rates increase to 1 inch or more per hour, accumulation on roads will quickly become much more efficient and this will make it difficult for road crews to keep up. Travel is not recommended.
I wanted to get an update out for the snow storm on Wednesday, March 6. I also want to give an idea of storm timing. IN general things are slowing down a little.
This Evening
There will be some rain or wet snow shower around starting at 8 pm or thereafter, These will be showers in nature and generally not a big deal. The temperature will be above freezing
Over night
Rain and snow showers will become periods of light wet snow. I’m expecting a coating to a couple of inches by daybreak tomorrow
Wednesday Morning
Many folks may wake up (especially early) and look out the window and say ‘this is our big storm’ and be confused/disappointed. I do not anticipate the snow getting heavy until mid to late morning. Certainly by lunch time the snow should be coming down hard at the rate of 1-2″ per hour
Wednesday Afternoon
From mid to late morning through most of the afternoon is where we will see our heaviest snow. It should come in waves/bands. Where these bands setup will determine who gets what. Look for snow at the rate of 1-2″ per hour
Wednesday Evening
The snow should start to taper down from west to east from early evening on as it looks now. There will still be periods of light snow and flurries into the overnight.
Snow Amounts
I’m pretty confident western New Jersey will receive 6-12″ of snow. There will be some locally higher amounts where the heavy snow bands setup.
I think its safe to say this storm was another over-producer. 3.1″ of very wet snow was recorded in Stewartsville. I never had to shovel most of my driveway – only the part that was in the shade of the house.
Here are some other snow totals:
...Warren County...
Oxford 6.0 415 PM 3/02 Social Media
Allamuchy 6.0 748 PM 3/02 Trained Spotter
Hackettstown 5.0 540 PM 3/02 Trained Spotter
...Northampton County...
Hellertown 6.0 400 PM 3/02 Social Media
Bethlehem 5.6 330 PM 3/02 Trained Spotter
Cherry Hill 5.5 1020 PM 3/02 Trained Spotter
Easton 4.3 700 PM 3/02 Social Media
Martins Creek 3.2 700 PM 3/02 Trained Spotter
Other snow totals from around the area:
...Hunterdon County... 4 N Clinton Twp. 9.3 800 AM 2/18 CoCoRaHS Lebanon 8.8 1116 PM 2/17 Trained Spotter Califon 8.5 700 AM 2/18 Public 3 SW Hampton 8.0 630 AM 2/18 CoCoRaHS 3 ESE Alpha 7.5 700 AM 2/18 CoCoRaHS Ringoes 6.5 956 PM 2/17 Social Media Glen Gardner 6.0 718 PM 2/17 Social Media 3 ENE High Bridge 6.0 640 AM 2/18 CoCoRaHS 4 WNW Cloverhill 6.0 630 AM 2/18 CoCoRaHS 3 E Flemington 5.6 802 AM 2/18 Co-Op Observer Readington Twp 4.8 642 AM 2/18 Trained Spotter Flemington 4.7 1010 PM 2/17 Trained Spotter Kingwood 4.7 1119 PM 2/17 Trained Spotter 2 E Flemington 4.7 800 AM 2/18 CoCoRaHS 2 W Cloverhill 4.6 800 AM 2/18 CoCoRaHS Wertsville 4.3 700 AM 2/18 Co-Op Observer
3 SE Hardyston Twp 6.0 800 AM 2/18 CoCoRaHS Newton 6.0 756 AM 2/18 Social Media Highland Lakes 5.3 630 AM 2/18 Trained Spotter Stockholm 4.5 930 AM 2/18 Trained Spotter 1 SE Sussex 3.9 700 AM 2/18 Co-Op Observer Sussex 3.9 1113 PM 2/17 Social Media 3 N Wantage 3.2 917 AM 2/18 Trained Spotter ...Warren County... 1 ENE Washington 9.3 1159 PM 2/17 CoCoRaHS Washington 8.3 1012 PM 2/17 Trained Spotter Harmony Twp 8.0 836 PM 2/17 Social Media 2 S Greenwich Twp 7.6 1047 PM 2/17 CoCoRaHS Stewartsville 7.6 1035 PM 2/17 Trained Spotter Oxford 7.5 1133 PM 2/17 Trained Spotter Hackettstown 7.0 700 AM 2/18 CoCoRaHS 4 NE Hope 6.5 700 AM 2/18 CoCoRaHS Allamuchy 6.3 629 AM 2/18 Trained Spotter 2 E Blairstown Twp 6.1 700 AM 2/18 CoCoRaHS Blairstown 6.0 948 PM 2/17 CoCoRaHS 4 NE Columbia 5.9 600 AM 2/18 CoCoRaHS 2 W Blairstown 5.8 1018 PM 2/17 CoCoRaHS Phillipsburg 5.7 828 PM 2/17 Trained Spotter Belvidere 5.6 700 AM 2/18 Co-Op Observer Marksboro 5.5 837 PM 2/17 Social Media Columbia 5.5 857 PM 2/17 Social Media
The NWS has upgraded the Winter Weather Advisory to Winter Storm Warning. Rightfully snow as much more snow is falling that was predicted
Sussex-Warren-Morris-Hunterdon-Somerset-Carbon-Monroe-Berks- Lehigh-Northampton-Western Montgomery-Upper Bucks- Including the cities of Newton, Washington, Morristown, Flemington, Somerville, Jim Thorpe, Stroudsburg, Reading, Allentown, Bethlehem, Easton, Collegeville, Pottstown, Chalfont, and Perkasie 741 PM EST Sat Feb 17 2018 ...WINTER STORM WARNING IN EFFECT UNTIL 4 AM EST SUNDAY... * WHAT...Heavy snow. Total snow accumulations of around 6 inches are expected. * WHERE...Portions of northern and northwest New Jersey and east central, northeast and southeast Pennsylvania. * WHEN...Until 4 AM EST Sunday. * ADDITIONAL DETAILS...Plan on difficult travel conditions. Be prepared for significant reductions in visibility at times. The snow may fall at 1 to 2 inches per hour at times in parts of the region, resulting in rapidly deteriorating road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions will make travel very hazardous or impossible. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1.
I was amazed how fast the snow started coming down and how fast the temperature fell from the upper 30’s to around 32-33 degrees.
Above is the radar showing all snow (blue) and plenty of it. The snow is moderate to heavy.
As of 6:30 pm 3″ of snow has already fallen in Stewartsville. I fear my forecast will bust on the low end. 3-6″ may have been a better forecast. The only hope for my forecast is the system is moving extremely fast. The heavy snow could be done by 10 pm!
Sunny and cold Saturday morning will have increasing clouds as the day wears on. High temperatures will be in the mid to upper 30’s. Look for light snow to arrive as early as late afternoon and continue into the evening and night time hours.
My forecast remains at 2-4″ which is slightly lower than the NWS snow forecast pictured above. I think southern and eastern sections of western New Jersey will see some mixing of sleet and perhaps even rain at times especially towards the end of the storm. Temperatures will struggle to get to or below freezing tonight. This will result in a wet snow that will accumulate more on colder surfaces than treated surfaces. This will also be a very fast moving storm that could be done as early as just after midnight in western sections! There is a possibility I could be too low but I’m sticking with my gut for now.
902 AM EST Sat Feb 17 2018 NJZ001-007>010-012-015-PAZ054-055-060>062-101>106-172300- /O.CON.KPHI.WW.Y.0008.180217T2100Z-180218T0900Z/ Sussex-Warren-Morris-Hunterdon-Somerset-Middlesex-Mercer-Carbon- Monroe-Berks-Lehigh-Northampton-Western Chester-Eastern Chester- Western Montgomery-Eastern Montgomery-Upper Bucks-Lower Bucks- Including the cities of Newton, Washington, Morristown, Flemington, Somerville, New Brunswick, Trenton, Jim Thorpe, Stroudsburg, Reading, Allentown, Bethlehem, Easton, Honey Brook, Oxford, West Chester, Kennett Square, Collegeville, Pottstown, Norristown, Lansdale, Chalfont, Perkasie, Morrisville, and Doylestown 902 AM EST Sat Feb 17 2018 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON TO 4 AM EST SUNDAY... * WHAT...Snow expected. Total snow accumulations of 3 to 5 inches are expected. * WHERE...Most of eastern Pennsylvania and northern New Jersey. * WHEN...Snow quickly overspreads the area from the southwest between around mid afternoon, becoming moderate to potentially heavy at times this evening. The snow should quickly by 4 AM. * ADDITIONAL DETAILS...Plan on difficult travel conditions. Be prepared for reduced visibilities at times. The snow may fall at up to an inch per hour at times in parts of the region, which would result in rapid deteriorating road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for snow means periods of snow will cause primarily travel difficulties. Be prepared for snow covered roads and limited visibilities, and use caution while driving. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1.
Computer models today have decreased and slightly shifted the snow axis to the east and south. Will continue to monitor to see if this is a trend or one off.
My forecast of 2-4″ still stands for overnight Saturday. Snow should start late afternoon/early evening and be over before sunrise Sunday. This will be a wet/heavy snow. Sunshine returns on Sunday with temperatures rising into the mid 40’s!
Winter Storm Watch still in effect for Saturday night. Look for this to go to either a warning or a Winter Weather advisory later today or early tomorrow morning.









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