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April 1-3 Late Season Threat


Ralph Wiggum

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Heres the euro qpf. I cant separate the two storms because they are just to close to gether. So here is the accum precip for both storms. Now heres the accum for storm number 1

holmdel to natl park, nj to radnor pa to reading pa to wellsboro pa...south of there .25-.5...north of there .1-.25...so subtract that from this accum map and you get storm number 2

euro1copy.jpg

yellow 1-.75-2

dark purple 1.5-1.75

purple 1.25-1.5

lgt blue 1-1.25

green .75-1

white .5-.75

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Since this is looking like a legit threat, can everyone save the images they've uploaded so far today, either to AMWX or Photobucket, so that those images will be there later on after the storm.

Thanks

Fwiw any images I posted in this thread (except the first post) are saved and hosted from another site. I recommend others do the same. Helps out when we reanalyze after these events.

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Meanwhile, the 0z RGEM is farther west than the 12z GGEM for 00z Friday. Hr 48 it has a 998mb Low inland over Wilmington, NC.

If the GGEM picks up where the RGEM left off, we're probably looking at more rain and less snow. Perfect balance to the NAM's OTS track. :lightning:

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To my eyes it would appear almost as what the UKMET and GGEM are doing differently from the GFS ..is that they all appear to be making this a one wave scenario or one large storm..

To show what i mean look at the prior frames which are 30-42..

This appears at least to me to be remotely different from what the GFS is suggesting....I am not sure whether the ECM will follow the same direction but the foreign models essentially seem to be of the same likeness!

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ECM may in fact be warmer at TTN...but the ECM is actually COLDER at the surface during the heavier precip at TTN..then the GFS..

FRI 00Z 01-APR 3.4 2.6 1004 96 76 0.20 547 544

FRI 06Z 01-APR 2.4 2.0 997 97 94 0.22 541 544

FRI 12Z 01-APR 1.9 -3.5 994 95 84 0.23 532 536

GFS

FRI 00Z 01-APR 3.8 2.2 1002 99 98 0.40 548 546

FRI 06Z 01-APR 2.6 4.3 988 98 94 1.22 539 549

The difference between the GFS and the ECM is :

The ECM once again can not stay consistent and has gone back to developing the system too late for this area which cuts down on the precipitation which also does not allow the dynamics from the system to effect this region. Even still it manages to be colder then the GFS is for TTN...

Also at 60 hrs the GFS is on top of Central LI where as the ECM is just to the E of LI ...

So not so much like the GFS ....at all...

I do agree with the assessment of the final outcome via VERBATIM ECM 00z but ..lack of consistency brings it into question! Same as GFS..Much better to stick with the means at this point and time!

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ECM may in fact be warmer at TTN...but the ECM is actually COLDER at the surface during the heavier precip at TTN..then the GFS..

FRI 00Z 01-APR 3.4 2.6 1004 96 76 0.20 547 544

FRI 06Z 01-APR 2.4 2.0 997 97 94 0.22 541 544

FRI 12Z 01-APR 1.9 -3.5 994 95 84 0.23 532 536

GFS

FRI 00Z 01-APR 3.8 2.2 1002 99 98 0.40 548 546

FRI 06Z 01-APR 2.6 4.3 988 98 94 1.22 539 549

The difference between the GFS and the ECM is :

The ECM once again can not stay consistent and has gone back to developing the system too late for this area which cuts down on the precipitation which also does not allow the dynamics from the system to effect this region. Even still it manages to be colder then the GFS is for TTN...

Also at 60 hrs the GFS is on top of Central LI where as the ECM is just to the E of LI ...

So not so much like the GFS ....at all...

I do agree with the assessment of the final outcome via VERBATIM ECM 00z but ..lack of consistency brings it into question! Same as GFS..Much better to stick with the means at this point and time!

I just said the EC is a torch not unlike the GFS, I didn't say everything the EC does this run is like the GFS. A big difference this run versus previous EC runs is that (for the first time I believe) the EC brings 850s several degrees above freezing right overtop of I-95.

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