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Plains Weather Discussion


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86 here right now....winds could be 40+ gusts here on thu behind the front.

Yeah it is going to be windy tomorrow. There will probably be a short three hour period around 18Z when the core of the strongest winds aloft have a threat to mix down as the low level cyclone passes to the E. Enjoy the wind!

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88, now top-5.

90 in Crookston and Hallock, MN, 91 in southern Manitoba!

edit - a look back at this day in 2005 ;)

http://www.crh.noaa.gov/images/bis/sd2005/October.pdf

October 4 and 5, 2005, brought an early and very significant blizzard to the Northern Plains including western and northern North

Dakota. A large band of 15 plus inches of snow fell from the southwest into the north central including from Bowman, through

Amidon, New England, Medora, Dickinson, Halliday, Grassy Butte, Garrison, Max, Tioga, Berthold and Minot, to Towner. The

heaviest snow was at Dunn Center, Manning, Marshall and Bowbells all with 22 inches, Beach with 20 inches, and Fairfield,

Hebron, and Richardton all with 18 inches. Visibility dropped to zero for an extended period of time at Dickinson and Minot and to

less than a quarter mile at Hettinger and Williston in snow and blowing snow. Winds gusted to 48 mph at Minot, 45 mph at

Hettinger, 40 mph at Williston, and 35 mph at Dickinson.

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Very very dry here, I can't even remember the last time we had a good appreciable rain. We have to go all the way back to July here. It doesn't look like this system is going to make a dent here. We look to be just on the edge of the decent rain! Winter better make up for this boring weather! I'm losing my passion for weather with 80+ degrees and sunny for the majority of the last three months is sure boring! Haha

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Very very dry here, I can't even remember the last time we had a good appreciable rain. We have to go all the way back to July here. It doesn't look like this system is going to make a dent here. We look to be just on the edge of the decent rain! Winter better make up for this boring weather! I'm losing my passion for weather with 80+ degrees and sunny for the majority of the last three months is sure boring! Haha

Very dry here also, had a total of 0.31 for all of september & nothing so far for the 1st week of october. Windy with temp at 78 as of 9:15pm with rain/tstorm band just to my west but not making much progress eastward.

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First "winter storm potential"of the season in the plains mentioned in the BIS AFD...if the ecmwf wasn't showing the possibility then i wouldn't of posted.

AREA FORECAST DISCUSSION

NATIONAL WEATHER SERVICE BISMARCK ND

252 PM CDT SUN OCT 9 2011

THE SPREAD OF THE DETERMINISTIC AND ENSEMBLE GUIDANCE

INCREASES DRAMATICALLY NEXT WEEKEND AND INTO EARLY NEXT WEEK

REGARDING THE PROPAGATION AND EVOLUTION OF THE GULF OF ALASKA WAVE

ON WEDNESDAY INTO THE WESTERN AND CENTRAL CONUS TOWARDS THE END OF

THE EXTENDED. THE 00 AND 12 UTC RUNS OF THE ECMWF OFFER A POTENTIAL

WINTER STORM FOR THE NORTHERN PLAINS...WHILE THE GFS LAGS THE ECMWF

BY ABOUT 24 HOURS WITH THE WAVE...YET STILL MUCH MORE AMPLIFIED

COMPARED TO ITS ENSEMBLE MEAN. WITH CONFIDENCE IN ANY ONE SOLUTION

LOW...WILL TAKE A CONSERVATIVE APPROACH WITH A BLEND FOR ALL FIELDS.

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First "winter storm potential"of the season in the plains mentioned in the BIS AFD...if the ecmwf wasn't showing the possibility then i wouldn't of posted.

Hmm. It is interesting because my friend I graduated with wrote that (the long-term). I am not seeing what he is talking about though regarding a winter storm...

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Was just glancing ahead to next week and it looks like it could get interesting in the northern plains. Euro and GEM both develop a low in the central/northern plains and move it north in southern ontario. The 00z GFS was much flatter and weaker but the 12z has trended a bit towards the Euro/GEM. Granted it's nearly a week away but exciting nonetheless with the potential to bring many areas their first flakes.

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Was just glancing ahead to next week and it looks like it could get interesting in the northern plains. Euro and GEM both develop a low in the central/northern plains and move it north in southern ontario. The 00z GFS was much flatter and weaker but the 12z has trended a bit towards the Euro/GEM. Granted it's nearly a week away but exciting nonetheless with the potential to bring many areas their first flakes.

Here's the latest GGEM at 144...12z Euro still has it but faster than the ggem.

post-252-0-58455900-1319135149.gif

post-252-0-54156900-1319135162.gif

post-252-0-11581000-1319135173.gif

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Was just glancing ahead to next week and it looks like it could get interesting in the northern plains. Euro and GEM both develop a low in the central/northern plains and move it north in southern ontario. The 00z GFS was much flatter and weaker but the 12z has trended a bit towards the Euro/GEM. Granted it's nearly a week away but exciting nonetheless with the potential to bring many areas their first flakes.

Here's the latest GGEM at 144...12z Euro still has it but faster than the ggem.

It is still on the table. The guidance has been having sensitivity issues in response the amplitude of the leading wave ahead of the mean trough. The one for sure is there will be a cold air dump and a strong low level baro zone. GFS op was weak, but the ensembles have some beefy runs. Euro is beefy too with a significant early season snowfall.

post-999-0-99876500-1319223580.gif

post-999-0-91322700-1319223600.png

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  • 2 weeks later...

Tomorrow (Monday Oct 31) marks the 20th Anniversary of the 1991 Halloween Blizzard. I remember it well...started off with rain then freezing rain followed by 11" of snow. Power was out for 2 days, many kids were disappointed as trick-or-treating was canceled until the following monday...very awesome storm. Couple of links for those who wish to revisit that storm.

Link1

Link2

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Tomorrow (Monday Oct 31) marks the 20th Anniversary of the 1991 Halloween Blizzard. I remember it well...started off with rain then freezing rain followed by 11" of snow. Power was out for 2 days, many kids were disappointed as trick-or-treating was canceled until the following monday...very awesome storm. Couple of links for those who wish to revisit that storm.

Link1

Link2

A true Minnesota classic blizzard, the benchmark for a trough-vortex merger. Gulf Lows in MN are RARE. The track that storm took was absolutely insane...nearly due N from Texas.

post-999-0-57922500-1320012525.png

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Almost ready to pull the trigger on a storm thread, but one ECMWF run isn't going to do it for me. EC has had a few of these strong runs mixed in with a number of weak runs. GFS/CMC are also weak and much farther E, but the 0Z ECM still suggests a thread for portions of MN/IA.

Baro, what are your thoughts on the potential next week?...is the euro out to lunch on this as it's the only model showing the w/n solution? I flopped on the storm thread i started last week so i'll pass on starting one for awhile.

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Baro, what are your thoughts on the potential next week?...is the euro out to lunch on this as it's the only model showing the w/n solution? I flopped on the storm thread i started last week so i'll pass on starting one for awhile.

I don't think it is out to lunch, if you look at the various globals there are relatively small scale differences in how they eject the western trough and how much tilt it takes. Timing differences on the northern stream as the wave passes across the plains...even the weaker GFS/CMC runs are close to wrapping it up...there is quite a bit of amplification potential with that type of arctic surge and a decent GOM moisture fetch.

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I don't think it is out to lunch, if you look at the various globals there are relatively small scale differences in how they eject the western trough and how much tilt it takes. Timing differences on the northern stream as the wave passes across the plains...even the weaker GFS/CMC runs are close to wrapping it up...there is quite a bit of amplification potential with that type of arctic surge and a decent GOM moisture fetch.

12z CMC/GFS have came north with the tue/wed event...if ECM holds on 12z then a thread should be started.

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00z GFS looks to have the makings of a big time system somewhere after 144 hrs, which has been consistent for multiple runs in a row now.

Should such a situation manifest itself, the developing Bermuda high and SE ridge would create a favorable pattern for moisture advection into the Southern Plains/Lower MS Valley.

Edit: Euro has a pretty significant system as well (which has also shown up several runs in a row). GFS is faster than this solution...

post-6489-0-20048800-1320572861.gif

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