Jump to content
  • Member Statistics

    18,407
    Total Members
    7,904
    Most Online
    Frosty1218
    Newest Member
    Frosty1218
    Joined

Moderate snowfall 12/14/2025 WWA up for most of the area


WeatherGeek2025
 Share

Recommended Posts

The radar is showing where this precip is to,nyc looking better with each short range model output. It actually aligns well with the current radar. Im sticking to my 3-5 inches of fluff,some spots of 6. Any bump north would put most of the city in that 6 inch range as well.

  • Crap 1
Link to comment
Share on other sites

Nice write up from the afternoon OKX AFD:

 

NEAR TERM /UNTIL 6 AM SUNDAY MORNING/...
Key Points:

* Winter Weather Advisories have been expanded across most of the
  local Tri-State region from 10pm tonight through 1pm Sunday.

* 2 to 3" of snow expected across much of the interior, 3 to 5"
  for NYC/NJ metro and coast, and 4 to 6" for E LI, tonight into
  Sunday morning. Locally higher amounts possible.

A strong polar low (-2 std 500mb height) digs southeast from
Ontario into the Great Lakes into tonight. Trend over the last
24-48 hours has been for this feature to take on a slightly
more neutral tilt (from positive) as it pivots towards the area
tonight into Sunday morning. This will provide a bit more
theta-e advection into the area, and also shift the the ULJ
slightly farther NW of the region. At the surface, a weak cold
front moves through the region this evening, with combination
of approaching shortwave PVA and RRQ of 150kt ULJ inducing weak
low pressure development along the front across Mid Atlantic
this evening, tracking southeast of the 40/70 lat/lon tonight
into Sunday AM.

Although surface features are weak, the deep layered lift overnight
into Sunday AM (including RRQ of ULJ, and modest mid-level
frontogenesis/lift in the snow growth region along the coast), and
slightly more depth of moisture for low pressure to work with has
resulted in a gradual increase in QPF and snowfall totals over
the last 48 hrs.

Good agreement in liquid equivalent of .3 to .5 for coast and .1 to
.2 for interior. Main snowfall amount forecast challenge is from
northward extent and duration of moderate snow banding, and snow
ratios during peak dendritic snow growth late tonight. SLRs
should exceed typical 10:1 late tonight into Sunday morning
during best snow growth period and dropping 850 hpa temps, with
12-14:1 seeming reasonable late tonight into Sun AM. This has
resulted in a general 1" increase in snow amounts across the
area. 3-5" likely across much of the coast including NYC/NJ
metro, with locally 6" possible. 4-6" across E LI, with locally
7" possible. 2 to 4" across interior. WPC Superensemble and
experimental NBM 5.0 have pretty good clustering in these
ranges, with reasonable worst case (10% prob of exceeding) a
couple of inches higher.

In terms of timing, snow could develop as early as 6-7pm this
evening, perhaps mixing with rain for city/coast at onset with
air temps in the upper 30s/lower 40s. Steadier snow likely
develops after 9pm from w to e, with a steady light to moderate
snow from midnight through Sunday morning. Snowfall rates of up
to 1/2"/hr likely develop after midnight through mid to late
morning for much of the area, with potential for brief 1"/hr
rates along the coast from 4am to 11am during best snow growth.
This signal is evident in the high-res CAMs, with highest prob
across southern and E LI. This will be time period of greatest
travel impacts in terms of reduced vsby and snow covered roads
with freezing/sub freezing air temps, higher snow rates, and
reduced vsby. Initially above freezing air/surface temps for
city/coast this evening, dropping below freezing late tonight
into Sunday AM, may resulted in icy spots on untreated surfaces.

Steady snow exits from w to e mid to late morning, except early
afternoon for far SE areas.
  • Like 1
Link to comment
Share on other sites

Snow was definitely beefier than expected in the Midwest. Indianapolis, Cincinnati, Columbus, Pittsburgh went under winter storm warnings but yesterday they were only under winter weather advisories. Maybe it’s a good sign to see more snow than expected to our west. Hopefully that  transfers to our area 

  • Like 1
Link to comment
Share on other sites

Just now, CPcantmeasuresnow said:

Only it falls by 7am. Anything after that they won't measure until 1pm and it will have compressed by then. It's a very old story that hasn't changed much through the years. 

Central park measuring is a joke. That storm in February had most places in NYC at 4-5” and they were at 3”. Last year, the 1/19 storm; most of the city had 3-5” and they had like 1.8”. Saving grace is this storm comes in at night so maybe that’ll reduce melting as the snow falls. I’d still expect some white rain at the onset because temps are still warm right now.  

  • 100% 1
Link to comment
Share on other sites

23 minutes ago, Krs4Lfe said:

Snow was definitely beefier than expected in the Midwest. Indianapolis, Cincinnati, Columbus, Pittsburgh went under winter storm warnings but yesterday they were only under winter weather advisories. Maybe it’s a good sign to see more snow than expected to our west. Hopefully that  transfers to our area 

Can confirm in Iowa. Much more precip than expected. It was very high ratio snow, was expecting 2 inches and got more like 6. 

  • Like 2
Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share

×
×
  • Create New...