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OBS-Nowcast Noon Saturday 2/15-Noon Monday 2/17


wdrag
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1 hour ago, Bxstormwatcher360 said:

Yeah my temps here in the bx have been dropping ..from 35 to 32/30f.

Even the Bronx will make it into the 40s later.Then the salt crews will probably be out in force for areas with residual standing water later. This has been the story all winter.

 

 

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1 minute ago, bluewave said:

Even the Bronx will make it above 50° later. Then the salt crews will probably be out in force for areas with residual standing water later. This has been the story all winter.

 

 

We shall see if 50 verifies, as of right now the cold wont budge fast enough.

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12 minutes ago, wdrag said:

Pressure fall modulations as wind blows into pressure falls if he ardent is not strong. Allows pockets of colder air nearly to to your north-northeast to return for a little while. Still 30.2F here in Wantage.  NAM3K and ECAI 2meters temps seems to have the east fit.

Thanks. That explains it, after getting to 31.9 I'm back down to 30.8 now with freezing drizzle in between the occasional freezing rain showers. 

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So far, the temperature is running colder than had been modeled for New York City. The 2/16 6z NBM had a 13z reading of 39°. The 12z run had 38°. The current reading is 33°. Whether this means that the temperature won't surge to or above 50° still remains to be seen. If, by 20z, readings continue to run well below the modeled output (47° on the 12z NBM), that could be an indication that the high temperature will ultimately fall short of the late day figures currently shown on the guidance.

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6 minutes ago, donsutherland1 said:

So far, the temperature is running colder than had been modeled for New York City. The 2/16 6z NBM had a 13z reading of 39°. The 12z run had 38°. The current reading is 33°. Whether this means that the temperature won't surge to or above 50° still remains to be seen. If, by 20z, readings continue to run well below the modeled output (47° on the 12z NBM), that could be an indication that the high temperature will ultimately fall short of the late day figures currently shown on the guidance.

Im on that anomaly,something is off or a unforeseen transfer to the coast later is possible. Colder air is rushing behind the primary low which i believe might be dying in eastern ohio/western pa and the trailing energy down in tenn now moving in to va is the new primary. Watch out if the low exits the southern jersey coast,alas northerly winds keep it colder. Cle to buff back to snow currently.

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3 minutes ago, bluewave said:

The 50° line should be very close to the Bronx later. But it will be a slow push until then. Central Jersey should have the best shot at 60°.

IMG_3059.thumb.png.cf0153c6060f9fc18e807f065a85e6a0.png

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IMG_3060.thumb.png.dbec2df8c45aca99cbee1b022436bfb9.png

 

Man its gonna close but 60 in southern jerz sounds like a pipe dream rn. The modeling in reguards to thermals are pretty much off by as much as 9 degrees,also no southerly winds rn,means a veryy slow go lol

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1 minute ago, Bxstormwatcher360 said:

Man its gonna close but 60 in southern jerz sounds like a pipe dream rn. The modeling in reguards to thermals are pretty much off by as much as 9 degrees lol

The HRRR that I posted is spot on for the current temps. So the forecast looks good. It usually dose best in these set ups.

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23 minutes ago, donsutherland1 said:

So far, the temperature is running colder than had been modeled for New York City. The 2/16 6z NBM had a 13z reading of 39°. The 12z run had 38°. The current reading is 33°. Whether this means that the temperature won't surge to or above 50° still remains to be seen. If, by 20z, readings continue to run well below the modeled output (47° on the 12z NBM), that could be an indication that the high temperature will ultimately fall short of the late day figures currently shown on the guidance.

Like clockwork…

Take the under 

 

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12 minutes ago, Bxstormwatcher360 said:

For my location its still 32 at 9am..i dont think the guidance suggested still frz at this time. But its gonna be close.

The Bronx mesonet is 33° and the HRRR forecast was 34°. So very close. Need to use the higher resolution guidance in situations like this.

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15 minutes ago, bluewave said:

The Bronx mesonet is 33° and the HRRR forecast was 34°. So very close. Need to use the higher resolution guidance in situations like this.

The 11z HRRR maxed out the Bronx at 57⁰ around 4pm.

The 12z HRRR maxed out the Bronx at 50⁰ around 6pm.

The latest 13z HRRR maxes out the Bronx at 47⁰ around 6pm.

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55 minutes ago, donsutherland1 said:

So far, the temperature is running colder than had been modeled for New York City. The 2/16 6z NBM had a 13z reading of 39°. The 12z run had 38°. The current reading is 33°. Whether this means that the temperature won't surge to or above 50° still remains to be seen. If, by 20z, readings continue to run well below the modeled output (47° on the 12z NBM), that could be an indication that the high temperature will ultimately fall short of the late day figures currently shown on the guidance.

I saw Bluewave  EC High res post but if it hits those numbers its for 3 hours only in mid afternoon. For one thing... a south wind is now drawing on modified cold off the ocean and interior NJ down to BWI.  yes it can hit those values but if the wind goes light south and shifts strong west, it wont grab the coastal NJ warmth.  There is time... imo,

 

unless someone disagrees (lets have it!), the EC AI had nailed this days in advance a reason for my alarming post a couple days ago about icing and branches.  EC AI is only 6 hourly for me but it's good. On sunny days I view out as a BL T (add 10 for a max). On precip days, its the number within 2F.

 

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7 minutes ago, NorthShoreWx said:

The 11z HRRR maxed out the Bronx at 57⁰ around 4pm.

The 12z HRRR maxed out the Bronx at 50⁰ around 6pm.

The latest 13z HRRR maxes out the Bronx at 47⁰ around 6pm.

Par for the course with these set ups as the northern boundary fights to hang on. Looks like mid 40s for the Bronx and 50s on Long Island with the 60s in Central NJ. JFK is already up to 39°.

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1 minute ago, Bxstormwatcher360 said:

Keep it going,my location sez 42°f..so the trend is real .

On the other hand, 13z HRRR gets my neighborhood (further north than most of the Bronx) into the low 50s and keeps them there between 4 and 7pm. 

Bottom line, that warm sector is going to be too close to rule out it blasting right into or through much of Westchester County based on waivering short term model runs.

Maybe it will, maybe it won't...seen this rodeo before.

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1 minute ago, NorthShoreWx said:

On the other hand, 13z HRRR gets my neighborhood (further north than most of the Bronx) into the low 50s and keeps them there between 4 and 7pm. 

Bottom line, that warm sector is going to be too close to rule out it blasting right into or through much of Westchester County based on waivering short term model runs.

Maybe it will, maybe it won't...seen this rodeo before.

That warm sector better be a true southerly wind to achieve mid 50's here. If it does its gonna be brief anyway but imo ,it doesnt hit 50's here.

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