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March 24-25 Potential Bomb Part Deux


earthlight

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Don't forgot the Euro had the storm almost exiting in Florida for a bunch of runs. GFS was on the storm since 192 hours

- JMA was ironically the best model with this storm throughout the duration (it keep the heaviest precip over jersey the whole time)

WHAT???? THe JMA consistently had 1" QPF for the NYC area

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gfs did really well too, i forgot to mention. it was pretty much just SE with the CBB and didnt budge. ggem and nam both grossly couldnt grasp how pressing the ULL would be.

 

obv this isnt over yet but whats cool about tracking these things is that even when things dont pan out...you can learn alot for the next one. unfortunately, we might have to wait til late october when winter starts again....yea, thats right i said october lol. the only chance i see left for this winter is if that huge cutoff that enters the CA coast can eject in time before the blocking wears down.

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WHAT???? THe JMA consistently had 1" QPF for the NYC area

 

Right , from hr 192 all the way in it was 1 to 1.5 area wide .

Today was the 1 st time it showed .75 to 1 .  But it showed the same solution for 5 straight days

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Don't forgot the Euro had the storm almost exiting in Florida for a bunch of runs. GFS was on the storm since 192 hours

- JMA was ironically the best model with this storm throughout the duration (it keep the heaviest precip over jersey the whole time)

 

dood...jma had big bombs for entire nyc metro. for whatever reason, it loves nyc because every big system it likes to qpf bomb nyc. did so with the feb 8th blizzard as well. so no, jma was not the best model with this storm for this forum. for philly forum, it did much better for them but still too wet.

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Right , from hr 192 all the way in it was 1 to 1.5 area wide .

Today was the 1 st time it showed .75 to 1 . But it showed the same solution for 5 straight days

Certainly a case for the idea that consistency =/= accuracy

Granted it hasn't happened yet, but it ain't looking that good

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I find it interesting that the NYC weather folks on 7 and 2 (including Jeff Smith, who is good) didn't back off their forecasts at 11 pm, although their forecasts are moderately different.  Channel 7 had a general 1-3" for NYC/North NJ/LI with a 3-6" swath in Monmouth/Ocean, while Channel 4 had the same for the metro area, but a swath of 3-5" south and west of the NYC (Somerset/Hunterdon/Morris/Mercer into SE PA) area.  And the NWS hasn't backed off yet, based on the NAM being toned down, implying the NAM wasn't a big part of their forecast or else they're just waiting for the Euro before making changes, which is probably a wise thing to do. 

 

Also, while everyone here is moaning about the latest models, I find it quite interesting that DT has upped his forecast snowfall totals for most of south/central NJ and SE PA (and even a little for NYC/NE NJ) in the past 2 hours vs, his last call and remember, he's been discounting the NAM completely for days, so the NAM's decrease in QPF shouldn't be a factor to him.  If his latest forecast is correct, most of NJ, south of I-78, would get 3-6", SE PA, the Lehigh Valley and NW NJ (Sussex/Morris/Warren/Hunterdon, basically) would get 2-4" and NE NJ (north of 78 and east of 287)/NYC would get 1-2", which would make many of us, except those in the immediate NYC metro area, happy. It is an odd looking map, though...

 

https://www.facebook.com/#!/photo.php?

fbid=503602616353668&set=a.148807335166533.25889.129478830432717&type=1&theater

 

https://www.facebook.com/#!/photo.php?fbid=503439636369966&set=a.148807335166533.25889.129478830432717&type=1&theater

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dood...jma had big bombs for entire nyc metro. for whatever reason, it loves nyc because every big system it likes to qpf bomb nyc. did so with the feb 8th blizzard as well. so no, jma was not the best model with this storm for this forum. for philly forum, it did much better for them but still too wet.

I'm not saying it was the best in the short range but if you were to look at this storm last week it was by far the closest and most consistent in the general area of where the storm was going to hit.

- Every other model wavered from the lakes to ots off Florida including the Euro

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Comes out at 2am and 2pm now due to DST. 

 

Should be out by now, I think, since the 12Z was out around 1 pm - although for awhile, it's been coming out more like 2 pm and 2 am, presumably due to the fact that we're in daylight savings time in the US, but the UK/Europe isn't until 3/31, as far as I know.  So, I'll admit I'm confused, since it's usually a 5-hr difference. 

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nam looks like it improved a decent bit for jersey shore

 

actually better for nyc long island overall too.

 

better than 18z and much better than 0z

Yea deff improved but were just about out of time

- new RAP is much improved as well(one more tick NW and we get into the serious precip)

- HRRR looking much better as well puts the band at our door step

 

Lets see if this trend continues - Last 2 HRRR and RAP runs:

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HRRR looking pretty good based on the radar for D.C......hmmmm

Yea, wouldn't get my hopes up yet but with such a tight gradient now casting is going to be important.

- I'm really interested in that band over DC. The RAP disintegrated the band right before it get to us but if it holds on we could pick up a few inches really quick

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Not true. Check philly obs thread

Radar actually doesn't look bad, but when I tried to find precip reaching the ground you got to go to Delaware even though most of south jersey appears to be under precip, lets see what happens today. 38 cloudy, windy dp 29.

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