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February 2012 General Discussion Part 2


Hoosier

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While others are wondering about Thursday's snow track I have had a rather unexpected inch of snow here in Dunlap today. Very fine pouring snow this early am, then some huge quarter and half dollar snowflakes in early afternoon. Ground continues to be mainly white. Today's snow has lasted a lot longer on the ground than Tues. am snow did.

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What the heck is the GFS showing next Weds?

Its pumping out 2 inches of precip for LSE (mostly all liquid, or so it would seem)...

That would be a nice svr wx maker from IN on southward in my estimation. GFS has been

rather consistent in showing something significant for near the end of Feb. in many runs so we shall see.

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Snowstorms, I heard back from climate services today re: Feb 11

Good afternoon Michael,

Your comment has been forwarded to Environment Canada's National Climate Services. It is likely that you are correct. After viewing the hourly data you will see that snow is listed as falling during the first 12 hours of the day while rain is never mentioned. I have forwarded on your findings to the Quality Control Team for them to investigate. This will take some time as they will likely need to contact the station. Thank you for passing along this information. If you ever happen to find any other similar errors please send them to me directly. We are always looking for ways to improve the quality of our data.

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Snowstorms, I heard back from climate services today re: Feb 11

:)

Thats great. Atleast they realize the error and can fix it quickly. Even then, I still think 2.2cm is quite low. I think it should be corrected to 2" atleast as every other station got 2" atleast.

If thats the case, then the month will be closing in on 6" thus far. Overall the total maybe around 16" then. Then only 4" more to the record low lol.

Thanks for telling.

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NWS out of Memphis already mentioning next week's potential system:

CONSIDERABLE UNCERTAINTY STILL EXISTS IN THE FORECAST

MONDAY THROUGH MIDWEEK. HAD A HARD TIME FINDING ANY GUIDANCE DEW

POINT TEMPERATURES I AGREED WITH NEXT WEEK...SO STARTED WITH THE

GFS...BUT IN GENERAL RAISED READINGS 4-12 DEGREES. IN

ADDITION...TEMPERATURES LOOK A BIT COOL...BUT NOT ON THE MAGNITUDE

OF TDS. STARTING TO SEE THE MAKINGS OF A STRONG STORM SYSTEM

MIDWEEK. GUIDANCE HAS TRENDED SLOWER WITH THIS SYSTEM...WHICH

WOULD ALLOW MOISTURE AND TEMPERATURES SEVERAL DAYS TO REBOUND. A

SURFACE LOW IS FORECAST TO TRACK OUT OF THE CENTRAL PLAINS ACROSS

MISSOURI...PLACING THE ENTIRE MIDSOUTH IN THE WARM SECTOR TUESDAY

NIGHT OR WEDNESDAY. THERE IS STILL A TON OF UNCERTAINTY WITH THE

DETAILS OF THIS SYSTEM...AND LOTS OF TIME FOR THINGS TO

CHANGE...BUT CERTAINLY WORTH KEEPING A CLOSE EYE ON.

Some kind of active pattern on the 00z GFS... :snowing::twister:

00z CMC/GGEM going nuts with the SLP next week:

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Here's the aforementioned CMC at 156 and 168 hrs:

Unsurprisingly, Day 4-8 mentions the potential:

DAY 4-8 CONVECTIVE OUTLOOK

NWS STORM PREDICTION CENTER NORMAN OK

0237 AM CST THU FEB 23 2012

VALID 261200Z - 021200Z

...DISCUSSION...

THE DETERMINISTIC GFS AND ECMWF HAVE CONVERGED TO SIMILAR SOLUTIONS

THROUGH DAY 6 REGARDING SYNOPTIC PATTERN EVOLUTION. HOWEVER..THEY

HAVE NOT DEMONSTRATED GOOD RUN TO RUN CONSISTENCY...AND ENSEMBLE

SPREADS INCREASE CONSIDERABLY BEYOND DAY 5. CONSENSUS IS THAT UPPER

PATTERN WILL REMAIN PROGRESSIVE AND MODERATELY AMPLIFIED AS A SERIES

OF WAVES TRAVERSE THE COUNTRY.

SEVERE POTENTIAL SHOULD REMAIN LOW INTO DAY 4 WITH SHORTWAVE TROUGH

THAT WILL ADVANCE THROUGH THE UPPER MS VALLEY AND GREAT LAKES DUE TO

LIMITED MOISTURE RETURN. GFS AND ECMWF SUGGEST A SEVERE THREAT MAY

INCREASE FROM THE SRN PLAINS INTO THE LOWER-MID MS VALLEY BY TUESDAY

/DAY 6/ THEN OH VALLEY AND SERN STATES WEDNESDAY AS RICHER GULF

MOISTURE ADVECTS NWD AHEAD OF A SRN STREAM WAVE. IF MODELS BEGIN TO

SHOW BETTER RUN TO RUN CONSISTENCY A RISK AREA MAY NEED TO BE

INTRODUCED IN LATER UPDATES.

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Saints=

Why does everything that look good for around here end up being a complete failure? We may go through this "active" period with nothing.

Did u see the 6z? Almost no precip now for LSE... Just amazing how crappy the GFS (and others at times) have handled all of this.

I would throw the 6z out, but it does follow the seasonal trend that we have seen so many times. It takes next weeks system south and week. The Euro really dumps on us though.

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