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NE OK/ NW AR/ SE KS/ SW MO Winter 2010


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Dodge City's discussion was depressing today:

TROPICAL THUNDERSTORM ACTIVITY HAS INCREASED IN THE EASTERN INDIAN OCEAN IN RECENT DAYS WHILE REMAINING ANOMALOUSLY WIDESPREAD ACROSS THE MARITIME CONTINENT. RELATIVE ANGULAR MOMENTUM VALUES STILL ARE 1 TO 2 STANDARD DEVIATIONS BELOW CLIMATOLOGY, AS WOULD BE EXPECTED IN A LA NINA YEAR. MOUNTAIN TORQUE STILL IS POSITIVE WITH MUCH OF THE POSITIVE CONTRIBUTION COMING FROM NORTH AMERICA, BUT THE MOUNTAIN TORQUE AND THE CALCULATED RELATIVE ANGULAR MOMENTUM TENDENCY ARE DECREASING. THE ATMOSPHERE APPEARS TO BE ORBITING BACK TOWARD PHASE 2-3 IN THE GLOBAL WIND OSCILLATION PHASE SPACE DIAGRAM, ALTHOUGH THE GWO SIGNAL IS WEAK AT BEST. THE WHEELER-HENDON MJO PHASE SPACE DIAGRAM HAS PICKED UP ON THE INCREASED CONVECTION IN THE EASTERN INDIAN OCEAN AND SUGGESTS THAT THE ATMOSPHERE IS IN PHASE 5 OF THE MJO PHASE SPACE DIAGRAM, WHICH FAVORS ANTICYCLONIC FLOW IN WESTERN CANADA. ADDING COMPLEXITY TO THE FLOW IS THE PERSISTENT RIDGING NEAR GREENLAND. THE BLOCKING RIDGE NEAR GREENLAND APPEARS TO HAVE WEAKENED TEMPORARILY, BUT MOST OF THE GFS ENSEMBLE MEMBERS ARE SUGGESTING INCREASINGLY NEGATIVE VALUES FOR THE ARCTIC OSCILLATION IN EARLY JANUARY. THE NET RESULT LIKELY WILL BE ONLY TEMPORARY TROUGHING IN THE CENTRAL UNITED STATES WITH A RETURN TO BLOCKING IN THE ATLANTIC AFTER THE FIRST OF THE YEAR, A SPLIT FLOW IN THE EASTERN PACIFIC AND A GENERALLY PROGRESSIVE PATTERN ACROSS THE UNITED STATES.

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This was from Dodge City, KS today. Anyone care to translate. Does this mean a brief warmup for the East Coast and then back to how it's been through December? Not sure if that's a good sign for us or not. Thoughts?

TROPICAL THUNDERSTORM ACTIVITY HAS INCREASED IN THE EASTERN INDIAN

OCEAN IN RECENT DAYS WHILE REMAINING ANOMALOUSLY WIDESPREAD ACROSS

THE MARITIME CONTINENT. RELATIVE ANGULAR MOMENTUM VALUES STILL ARE 1

TO 2 STANDARD DEVIATIONS BELOW CLIMATOLOGY, AS WOULD BE EXPECTED IN

A LA NINA YEAR. MOUNTAIN TORQUE STILL IS POSITIVE WITH MUCH OF THE

POSITIVE CONTRIBUTION COMING FROM NORTH AMERICA, BUT THE MOUNTAIN

TORQUE AND THE CALCULATED RELATIVE ANGULAR MOMENTUM TENDENCY ARE

DECREASING. THE ATMOSPHERE APPEARS TO BE ORBITING BACK TOWARD PHASE

2-3 IN THE GLOBAL WIND OSCILLATION PHASE SPACE DIAGRAM, ALTHOUGH THE

GWO SIGNAL IS WEAK AT BEST. THE WHEELER-HENDON MJO PHASE SPACE

DIAGRAM HAS PICKED UP ON THE INCREASED CONVECTION IN THE EASTERN

INDIAN OCEAN AND SUGGESTS THAT THE ATMOSPHERE IS IN PHASE 5 OF THE

MJO PHASE SPACE DIAGRAM, WHICH FAVORS ANTICYCLONIC FLOW IN WESTERN

CANADA. ADDING COMPLEXITY TO THE FLOW IS THE PERSISTENT RIDGING NEAR

GREENLAND. THE BLOCKING RIDGE NEAR GREENLAND APPEARS TO HAVE

WEAKENED TEMPORARILY, BUT MOST OF THE GFS ENSEMBLE MEMBERS ARE

SUGGESTING INCREASINGLY NEGATIVE VALUES FOR THE ARCTIC OSCILLATION

IN EARLY JANUARY. THE NET RESULT LIKELY WILL BE ONLY TEMPORARY

TROUGHING IN THE CENTRAL UNITED STATES WITH A RETURN TO BLOCKING IN

THE ATLANTIC AFTER THE FIRST OF THE YEAR, A SPLIT FLOW IN THE

EASTERN PACIFIC AND A GENERALLY PROGRESSIVE PATTERN ACROSS THE

UNITED STATES.

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Well there is hope. There is a nice storm coming up on the GFS about 300 hours from now... make that 294... :arrowhead:

NW storm, won't produce precip here :-p

Also, we can't even get any waves to eject out of the cutoff over the SW to give us anything.

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It's already 56 here right now, GFS is going to be at least 4 degrees or more off, it seems to be running too cool. NAM is handling the temps better of course which means we may see mid-upper 60's tomorrow. I can't really find any GFS Ensemble to hug in the next 16 days.

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These warnings may have verified, however. Lots of damage reports coming into Springfield this morning.

http://www.weather.g...prodtype=public

Quite a storm report coming in from Cincinnati, AR (south of Siloam Springs). Looks like a tornado went through that community of around 100 people:

0609 AM TORNADO CINCINNATI 36.04N 94.51W

12/31/2010 WASHINGTON AR CO-OP OBSERVER

PRELIMNARY REPORT OF TORNADO DAMAGE IN CINCINNATI. ONE

MOBILE HOME AND TWO BARNS DESTROYED. ADDITIONAL

INFORMATION TO FOLLOW.

0609 AM TORNADO CINCINNATI 36.04N 94.51W

12/31/2010 WASHINGTON AR CO-OP OBSERVER

ADDITIONAL PRELIMINARY REPORTS FROM CINCINNATI. EXTENSIVE

DAMAGE REPORTED IN THE AREA. BRICK HOME DESTROYED.

VEHICLES DAMAGED. VOLUNTEER FIRE DEPT FACILITY DAMAGED.

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where's the tornado warning from Springfield? Oh it's not Jasper or Barton county ;)

EDIT: Oh there they are.

Are they really that bad with just throwing out a tornado warning lol? Its pretty intense up here at the moment! Heavy rain wind and tons of thunder which has awaken me. 58 degrees outside then the dry cold front comes through and it gets cold again for a lil bit lol. The same ole same ole. Dont think I have ever seen a severe thunderstorm warning in the winter time lol....always a first for everything i guess

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UPDATE 12:44

GFS and Euro look completely different as early as 72 hours. Euro brings the SW low into the Plains much earlier than the GFS. @120, the Euro has it over SW Kansas while the GFS has it cutoff the west coast.

3 dead in NW Ark due to the tornado that touched down.

What a difference 12 hours makes on the GFS. It's a whole lot colder.

00z GFS @ 180

12z GFS @ 168:

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I'm becoming more suspicious of an overrunning/ice storm setup in our next 2-3 weeks here. I feel we'll be more prone to one this winter ala the 06-07 and 07-08 winters.

Yeah, it was nice yesterday so I trimmed trees in case we do get ice. There is a lot of disagreement in the models this morning. GGEM even brings in some precip as early as 96 hours from the model run this morning.

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Yeah and it looks like the Euro is trying to bring a sw across around that same time frame as well. May not be as quite as they are expecting around here next week.

Yeah the Euro and GFS are completely different at that time. The Euro has a 'SW bias' and it's ejecting this low out. Phases with some N Stream energy and produces another storm over the NE on the Euro. GFS says, what storm?

The 00z runs are going to be really interesting.

UPDATE: 2:32 PM

Apparently the Euro is wayyy different than it's ensembles.

Maybe some of these 216 hour GFS panels will come true:

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12z GGEM is bringing a system in @ 96 hours which is Weds morning. It may be close on temps, possibly starting as something frozen. 12z GFS and Ensembles don't have this at all, instead they keep precip down across the Gulf coast.

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