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January 28th/29th Event Obs - From KU to FU?


JTA66
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My historical analogy of this storm in the 25+ years of doing this is the banding of the tucked in low will be the driver of jackpots and busts in our forecast area. So many times I have seen these coastal lows start to retrograde in late  short range models around the benchmark and pop off some serious banding issues as the low closes off early due to more convection.   This storm is modeling to be a very similar situation to past storms that I have seen.

 

The western fringes areas  of this snow may do very well if banding holds as reverse orographic lifting takes place over the South and Blue Mts. Montgomery/Bucks County into Lehigh and Northampton may overperform because of this situation. I would not be surprised that winter storm warnings are extended up into these counties tomorrow if the short range models continue to indicate retrograding of the LP.

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2 minutes ago, LVblizzard said:

Initial low confidence guess for the Lehigh Valley was 1-3"...maybe time to bump that up to 2-4" or 3-6"? Tomorrow's guidance is going to be important, as well as comparing tonight's models to tomorrow's observations in about 12-24 hours.

I agree the 12Z runs tomorrow will be the final nail in the coffin. Its been a longtime to wait this close to the actual storm event to even have any confidence. Usually the Nam/Euro combo works well but they are even jumping around.

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5 minutes ago, Birds~69 said:

For the late night tired blind people like myself. He really needs to upgrade his snowfall map presentation...been like this for 20yrs.

27F

dt.jpg

Zoomed in I realize the blue line is actually 2 miles to the southeast of my head I am equally blind

 

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34 minutes ago, Albedoman said:

yep, I agree this year. Allentown is having to trouble just cracking 6 inches

I think the majority, if not all of us here in SE PA (and further W burbs...Reading/Allentown) are still in single digit accumulations. (under 8"?) Kinda wacky but good for the NJ folks who usually get screwed...

27F

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Just now issued 3:23am. Jacked up amounts at bit...

27F

Active Weather Alerts

WINTER STORM WARNING
ISSUED: 3:23 AM JAN. 28, 2022 – NATIONAL WEATHER SERVICE
...WINTER STORM WARNING IN EFFECT FROM 7 PM THIS EVENING TO 7 PM
EST SATURDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 4 to
11 inches. Winds gusting as high as 35 mph.

* WHERE...Portions of central, northern and southern New Jersey
and southeast Pennsylvania.

* WHEN...From 7 PM this evening to 7 PM EST Saturday.

* IMPACTS...Travel could be very difficult to impossible. Areas
of blowing snow could significantly reduce visibility.

* ADDITIONAL DETAILS...Accumulating snow is expected to begin
Friday evening, becoming heavy at times Friday night through
Saturday morning. Snowfall rates near one inch per hour are
possible, with significant reductions in visibility. Snow will
diminish late Saturday afternoon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.
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