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Another in a series of clippers 1/21-1/22(Rib says call this one a storm :p)


Mitchell Gaines

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I like your call with 6-10, we see it every storm, ratios are never as high as people think, however there will be mesoscale banding with the frontogenesis we are seeing, so someone in the 6-10 range will finish with 12-15" I believe. 

That could happen... if the EC isn't right, which only has a half inch of QPF on average versus the 6Z NAM/GFS 0.7".  If the EC is more correct, and I'm not saying it is, then the loli's will be in the 10-12 range with most places more like 5-9.

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That could happen... if the EC isn't right, which only has a half inch of QPF on average versus the 6Z NAM/GFS 0.7".  If the EC is more correct, and I'm not saying it is, then the loli's will be in the 10-12 range with most places more like 5-9.

 

Yeah, EURO is def. concerning for wanting a foot. How much precip was it forecasting at this range for the 1/3 event? 

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Yeah, EURO is def. concerning for wanting a foot. How much precip was it forecasting at this range for the 1/3 event? 

 

My memory isn't clear, but I don't think it did so great.  That said, I'll invoke one of Tony's favorite sayings and say "Past performance is not necessarily indicative of future trends".

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My memory isn't clear, but I don't think it did so great.  That said, I'll invoke one of Tony's favorite sayings and say "Past performance is not necessarily indicative of future trends".

 

Yeah I agree I was just curious, following the models all my life I've seen the same trend over and over again with storms that start at this time. The 6z models look really robust, the 6z RGEM shifts a bit SE, then at 12z we see the NAM/GFS tick SE which I expect will happen. 

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Latest wxsim with 6z NAM and 0z GFS for NW Chesco

Light Snow by 930am temp 25.4

Heavy Snow by 1230p temp 23.5 (0.6")0.06" w.e.

Heavy Snow at 330pm temp 19.0 (2.9")0.24" w.e.

Heavy Snow at 630pm temp 15.4 (6.1")0.48" w.e.

Mod Snow at 930p temp 12.4 (8.3")0.63" w.e.

Snow ends by 11pm temp 11.3 (total snow 9.8")0.73" w.e.

Temps remain below 15 Thru Sat AM with a highest temp in next 7 days on Saturday at 25.0

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Damn, ch 10 (Glenn) very bullish w/ 9-16" in and around a good part of Philly and surrounding areas. Ch3 and Ch6 have 5-10" in approx the same areas.

 

I must be doing okay because I did not even look at Glenn and 10 and posted earlier:

 

http://liveweatherblogs.com/index.php?option=com_community&view=groups&task=viewdiscussion&groupid=8&topicid=70227&Itemid=179

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I must be doing okay because I did not even look at Glenn and 10 and posted earlier:

 

http://liveweatherblogs.com/index.php?option=com_community&view=groups&task=viewdiscussion&groupid=8&topicid=70227&Itemid=179

 

That's pretty good.

 

Although not Glenn this morning since he'll probably have a long day I'm sure this is his map. Probably counting on banding along I-95.

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Wxsim now with 6z GFS bumped up snow a bit and temps down

Now has 6.1" on ground by 4pm with over 10" by 10pm and ending by 1am with 11.3" with 0.88" w.e.

Latest wxsim with 6z NAM and 0z GFS for NW Chesco

Light Snow by 930am temp 25.4

Heavy Snow by 1230p temp 23.5 (0.6")0.06" w.e.

Heavy Snow at 330pm temp 19.0 (2.9")0.24" w.e.

Heavy Snow at 630pm temp 15.4 (6.1")0.48" w.e.

Mod Snow at 930p temp 12.4 (8.3")0.63" w.e.

Snow ends by 11pm temp 11.3 (total snow 9.8")0.73" w.e.

Temps remain below 15 Thru Sat AM with a highest temp in next 7 days on Saturday at 25.0

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First MCD for heavy snow

 

post-1201-0-77912900-1390308149_thumb.gi

 

MESOSCALE DISCUSSION 0030
NWS STORM PREDICTION CENTER NORMAN OK
0404 AM CST TUE JAN 21 2014

AREAS AFFECTED...ERN WV...WRN INTO NRN VA...WRN MD...S CNTRL PA

CONCERNING...HEAVY SNOW

VALID 211004Z - 211600Z

SUMMARY...SNOW WILL CONTINUE TO INCREASE IN COVERAGE THROUGH THE
MORNING HOURS...WITH 1"/HR RATES LIKELY OVER ERN WV/WRN VA...WITH
SOME LOCATIONS APPROACHING 2"/HR BY LATE MORNING. AN EVOLVING HEAVY
SNOW BAND WILL ALSO INCREASE THROUGHOUT THE DAY BEGINNING OVER SRN
PA AND EVENTUALLY INTO NJ...SRN NY AND SRN NEW ENGLAND.

DISCUSSION...AN INTENSE SHORTWAVE TROUGH WILL CONTINUE TO DIG SEWD
ACROSS THE OH VALLEY WITH MIDLEVEL JET NOSING INTO THE APPALACHIANS
BY 18Z. AT THE SURFACE...LOW PRESSURE WILL DEEPEN OVER WRN NC...WITH
CYCLONE TILTED NWWD WITH HEIGHT /850 MB LOW OVER WRN VA/. AS THIS
LOW DEEPENS...AN INTENSIFYING WARM CONVEYOR WILL BECOME FAVORABLY
ORIENTED IN REGARD TO TOPOGRAPHY TO FURTHER ENHANCE VERTICAL MOTION
FIELDS ACROSS THE MCD AREA. THE RESULT SHOULD BE A RELATIVELY
PROLONGED MODERATE TO HEAVY SNOW SHIELD...WITH LOCALIZED 2"/HR
RATES.

RADAR TRENDS AS OF 10Z SHOW SOME BANDING ACROSS SRN PA...ALIGNED
WITH WEAK FRONTOGENETICAL FORCING. THIS BAND SHOULD INTENSIFY AND
EXPAND EWD LATER TODAY WITH HEAVIER SNOW RATES FROM MD/ERN PA INTO
NEW JERSEY AND SRN NEW YORK WHERE DEEP FRONTOGENETICAL FORCING WILL
BOTH INTENSIFY AND BE ALIGNED WITH TEMPERATURE PROFILES FAVORABLE
FOR MAXIMUM DENDRITIC GROWTH.

..JEWELL.. 01/21/2014

 

 

 

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My memory isn't clear, but I don't think it did so great. That said, I'll invoke one of Tony's favorite sayings and say "Past performance is not necessarily indicative of future trends".

The Euro correctly indicated a 0.75+ area arcing into NJ, similar to the NAM prior to the event. I agree though that it means very little this go around.

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