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GHD III possible Winter Storm February 1st-3rd


Thundersnow12

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lol, but he has 109 likes....

 

meanwhile, LOT is being realistic...

 

 

 

ENSEMBLES AND OPERATIONAL GUIDANCE CONTINUE TO STRONGLY SUPPORT A
SIGNIFICANT STORM SYSTEM TRACKING FROM THE SOUTHERN HIGH PLAINS TO
THE MIDWEST MONDAY NIGHT THROUGH TUESDAY NIGHT. THIS WILL BE IN
RESPONSE TO IMPRESSIVE SOUTHERN UPPER JET AND DIGGING MID/UPPER
TROUGH INTO THE SOUTHWEST. WE`RE STILL A LONG WAYS OFF FROM THIS
SYSTEM AFFECTING THE AREA...SO THERE REMAINS SUBSTANTIAL SPREAD
WITH RESPECT TO TRACK....STRENGTH AND TIMING OF THE LOW PRESSURE
SYSTEM AND ASSOCIATED MID/UPPER FEATURES. ASSESSING PREVIOUS 2
DAYS OF MODEL RUNS...BELIEVE THAT THE SUNDAY WAVE BEING STRONGER
COULD PLAY A ROLE IN A BETTER COLD SUPPLY/FARTHER SOUTH BAROCLINIC
ZONE IN ADVANCE OF THE PRECIP SPREADING NORTHWARD LATE MONDAY
NIGHT/EARLY TUESDAY. IN ADDITION...COOL DRY HIGH PRESSURE WILL BE
IN PLACE NORTH OF THE GREAT LAKES REGION.

STRONG SOUTHWEST SYSTEMS SUCH AS THIS ONE WITH GUIDANCE SHOWING
TENDENCY FOR CLOSING OFF AT MIDLEVELS OFTEN TRACK SLOWER IN
REALITY THAN PROGS SEVERAL DAYS OUT. IF THERE IS ENOUGH COLD AIR
IN PLACE...COULD BE A SWATH OF ACCUMULATING SNOW/SLEET IN WAA
PRECIP ON TUESDAY...BUT A FARTHER NORTH BAROCLINIC ZONE AND WAVE
CLOSING OFF FARTHER WEST COULD QUICKLY FLOOD WARM AIR NORTHWARD
AND RESULT IN MAINLY RAIN. OF COURSE...STILL A SCENARIO IN WHICH
WAVE DIGS FAR ENOUGH SOUTHEAST TO GET US IN THE PRIMARILY WINTRY
ZONE. STILL TOO EARLY FOR MUCH IN WAY OF SPECIFICS...AND POTENTIAL
SCENARIOS STILL RANGE THE GAMUT FROM A SWATH OF HEAVY SNOW
SOMEWHERE IN THE CWA TO A WINTRY MIX TO RAIN TO HEAVY RAIN AND
EVEN TSTORMS AND FLOODING. WIDE OPEN GULF WILL RESULT IN
IMPRESSIVE MOISTURE TRANSPORT...AND MODERATE TO HEAVY PRECIP
CONTINUES TO BE A GOOD BET WHATEVER THE TYPE. FOR NOW...IN MONDAY
NIGHT THROUGH TUESDAY NIGHT PERIOD...HAVE GENERALLY GONE WITH
RAIN/SNOW IN WEATHER GRIDS. WITH A STRONG SFC LOW EXPECTED...THERE
WILL ALSO BE PERIODS OF STRONG/GUSTY WINDS AT TIMES AS WELL.
COLDER AIR WILL RETURN ON BACKSIDE OF SYSTEM ON WEDS...WITH ANY
PRECIP FAVORED TO BE IN FORM OF SNOW. STAY TUNED.
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DVN somewhat skeptical of the storm shifting further southeast at this point...

 

...THE EXTENDED FORECAST REMAINS FOCUSED ON A POTENTIAL STRONG STORM

SYSTEM WHICH IS FORECAST TO IMPACT THE REGION MONDAY NIGHT THROUGH
WEDNESDAY. THIS SYSTEM IS CURRENTLY LOCATED IN THE PACIFIC...CLOSER
TO JAPAN THAN ANY OTHER LANDMASS THIS MORNING. THUS...THE MINOR
DIFFERENCES IN MODEL INITIALIZATION ARE RESULTING IN VERY LARGE
DIFFERENCES IN RUN TO RUN AND MODEL TO MODEL FORECASTS OF THE
TRACK...INTENSITY... PRECIPITATION TYPE...AND AMOUNTS OF RAIN OR
SNOW. THIS CAN BE SEEN THROUGHOUT ALL MODELS...BUT ESPECIALLY THE
GFS WHICH HAS GONE FROM A MASSIVE SNOW STORM FOR OUR AREA TO A
LIGHT TO MODERATE SNOW/RAIN EVENT. IN ANY CASE...WHEN WE ARE
LOOKING AT A STORM SO FAR AWAY...WE NORMALLY ARE JUST TRYING TO
FIGURE OUT WHETHER IT WILL BE COLD/MILD...PARTLY CLOUDY/CLOUDY...AND
WHETHER TO INCREASE RAIN CHANCES FROM 20 PERCENT TO 40 PERCENT.
JUST BECAUSE OF THE HIGH IMPACT TO THE REGIONAL WEATHER...INCLUDING
THE IOWA CAUCUS...DOES NOT MEAN THAT THE FORECAST FOR DAY 6 AND 7
SHOULD BE VIEWED IN ANY KIND OF CONFIDENCE. THE ONLY MODEL NOW
INDICATING HIGH IMPACT WEATHER FROM A WINTER STORM AT THIS TIME
NOW IS THE GEM...WHICH REMAINS SOUTH...WHILE THE GFS AND ECMWF
HAVE DECIDEDLY SHIFTED NORTH. I THINK THAT TREND MAY WELL BEAR
OUT...AS THERE DOES NOT SEEM TO BE A LEADING TROF SUNDAY THAT IS
DEEP ENOUGH TO SPREAD SUFFICIENT COLD AIR SOUTH INTO THE MIDWEST
TO WARRANT A WIDESPREAD SNOW EVENT MONDAY...AND THAT SHOULD ALSO
LEAD TO LESS NEGATIVE FEEDBACK OF COLD AIR FOR TUESDAY. THUS A
MORE NARROW BAND OF HEAVY SNOW WOULD BE EXPECTED...
AS RAIN/SLEET/MIX
COVER LOCATIONS ALONG AND EAST OF THE SURFACE LOW TRACK. IN ANY
CASE...AS SAID AT THE START...THE ENERGY IS ON THE OTHER SIDE OF
THE INTERNATIONAL DATELINE...SO WE WILL LIKELY SEE FURTHER SHIFTS
IN THE STORM TRACK AND STRENGTH. IT JUST MAKES MORE SENSE THAT
THE STORM TRACKS FARTHER NORTH GIVEN WHAT I SEE AT THIS TIME.

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