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2/15 Snow threat


SnowGoose69

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These are SREF cities off WB .

Ohhh from the 3z run though. The 9z puts a paltry amount of precip over our area. Much much worse. The new SREF is supported by the RAP, which is despised but I love it (maybe too much :/ ) lol. It shows a snow hole over our area and gives us a band of snow later but not much

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The model mean at KNYC is really close to .4 The 11z HRRR is 3 to 4 through the area . There will be many more 4`s that pop up than 2`s . Don't sweat it .

I agree, I think the new SREF is too low. I think most areas around here will get 2-3", with NW NJ and parts of Long Island getting 4-6"


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Latest HRRR showing dry slot off the NJ coast with most of NJ in steady precip all day.  Dry slot seems to include Raritan Bay and NYC and about the western 2/3 of LI.  This is through late afternoon.  Here is the 5 pm pic, earlier frames are similar.  Subsequent frames do show the hole filling in before precip has moved east of the city around 8 pm.

 

post-2848-0-20899100-1392471917_thumb.pn

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This is the 9z SREF Guidance:

 

02152014_2.jpg

 

In addition, the 0z and 6z RGEM, 0z ECMWF, and 0z and 6z GFS all indicate the NYC Metro Area (including nearby New Jersey and southern Westchester County and southwestern Fairfield County) should receive a solid 2"-4" of snow. Parts of Long Island should pick up 3"-6" (mainly Nassau County) and 4"-8" (mainly Suffolk County). In all those areas, a few locally higher amounts could occur.

 

All in all,today's system should add to the large snowfall totals that have been racked up during the last 20 days, some of which are nearing normal snowfall for an entire winter. 

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If anyone cares about the Nam

Nam might be delayed for another 2-3 more hours

 

NCEP Operational Status Message Sat Feb 15 13:08:28 2014 GMT

NOUS42 KWNO 151308
ADMNFD
SENIOR DUTY METEOROLOGIST NWS ADMINISTRATIVE MESSAGE
NWS NCEP CENTRAL OPERATIONS COLLEGE PARK MD
1303Z SAT FEB 15 2014
12Z MODEL PRODUCTION CYCLE WILL DEFINITELY BE DELAYED.. DUE TO
THE MAJOR CIRCUIT AND INTERNET SERVICE ISSUE AT THE TOC/GATEWAY..
WE ARE DELAYING THE START OF THE 12Z CYCLE RUNS.. INCLUDING THE
NAM AND RAP UPDATES.. DUE TO THE ON-GOING ISSUES AT THE
GATEWAY/TOC. THEIR VENDOR/CONTRACTOR SAYS THEIR WORK COULD TAKE
UP TO 2-3 HRS.. BUT THEY ARE ON-SITE AND WORKING ON THE ISSUE.
WE WILL UPDATE YOU AS SOON AS WE KNOW HOW LONG THE DELAY OF THE
12Z MODELS WILL BE... MOST OF THE DATA NEEDED TO RUN THE MODELS
IS NOT REACHING THE NEW WCOSS SUPER COMPUTER TO RUN THE MODELS
AND WE ARE ALSO UNABLE TO SEND PRODUCTS OUT AS WELL TO
AWIPS...VIA THE TOC/GATEWAY.
MORE INFORMATION ONCE THIS BECOMES AVAILABLE..
NEWBY/SDM/NCO/NCEP

 

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Latest HRRR showing dry slot off the NJ coast with most of NJ in steady precip all day.  Dry slot seems to include Raritan Bay and NYC and about the western 2/3 of LI.  This is through late afternoon.  Here is the 5 pm pic, earlier frames are similar.  Subsequent frames do show the hole filling in before precip has moved east of the city around 8 pm.

 

attachicon.gifcref_t3sfc_f10.png

That is not really supposed to fill in until late afternoon for the city and LI. But it's no guarantee of course that it does-if so, great, if not we'll be on the sidelines obviously. The mid level lows have to cooperate and generate that snow.

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