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Upstate NY/North Country + adjacent ON, QC, VT: End of Fall/Into Winter!


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Nice surprise. I saw a mesolow form northwest of Rochester before I went to bed, definitely produced.

 

...MONROE COUNTY...
NORTH GREECE 9.0 1000 AM 1/21 PUBLIC
1 ESE IRONDEQUOIT 5.0 730 AM 1/21 SOCIAL MEDIA
PENFIELD 4.5 600 AM 1/21 DEPT OF HIGHWAYS
WEBSTER 4.0 530 AM 1/21 SOCIAL MEDIA
4 E ROCHESTER 2.7 800 AM 1/21 COCORAHS
ROCHESTER AIRPORT 2.2 700 AM 1/21 ASOS
5 W ROCHESTER 2.2 730 AM 1/21 COCORAHS
3 W WEBSTER 0.7 1159 PM 1/20 COCORAHS

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Tea Kettling events are very hard to forecast and affect absolutely tiny areas of the lake shore.  It was a tough call for them.  The snow is usually pure fluff and not a huge deal to clean up.  I wouldnt give them too hard a time, its not like they are missing major events that impact large metro areas with well modeled bands.  These events almost drop below mesoscale resolution sometimes.  Oh well, I'll gladly take the bonus 2-3 inches I woke up to.  

 

I do agree that a radar in Rochester would be fantastic and drastically improve their nowcasting abilities.  It won't happen though

 

Tea Kettling is tricky to forecast, true, but there were plenty of signs that advisory level snows could happen with the initial convergence boundary over the lake late last evening. In BUFs AFD at 11:26PM, they mention this boundary dropping 2-3 across the area, then in the 2:59AM AFD they mention another 1-3 possible from LES based on potential connections from Huron. It wasn't until the 6:58AM discussion (after most of the snow already fell) that they issued the short-lived advisory for another 2-4 (which would place totals in warning territory). By that time, all the problems with traffic/school/etc. were well underway. Even with the fluffy nature of the snow, it still caused lots of issues this morning. There are easily over 100K people in the affected areas which woke up to quite the surprise...

 

For northern Monroe, this could very well be the biggest event we see all winter...just sayin'. :)

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Interesting tidbit from the Buffalo AFD...

LOOKING AT LAKE INFLUENCES...OVER-WATER INSTABILITY WILL BE

INSIGNIFICANT FOR LAKE CONTRIBUTIONS THROUGH TUESDAY AS 850 MB

TEMPERATURES REMAIN WARMER THAN -8C. HOWEVER...LAKE PARAMETERS

BECOME MUCH MORE FAVORABLE TUESDAY NIGHT THROUGH THURSDAY AS 850 MB

TEMPERATURES DROP TO BETWEEN -12C AND -16C AS A MID LEVEL TROUGH

DEEPENS OVER THE GREAT LAKES AND OHIO VALLEY. THIS TIME FRAME WILL

HAVE TO BE MONITORED AS THE COMBINATION OF SYNOPTIC AND LAKE

COMPONENTS WITHIN A WESTERLY/UPSLOPE FLOW REGIME LIKELY BRINGING

MODERATE TO POTENTIALLY HEAVY SNOW TOTALS DURING THE MID WEEK PERIOD.

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I just moved back upstate from cnj, i'm not sure this isn't the new normal lol 

 

2 of the 3 years i lived there we saw 60-70, also the same thing between 2009-2011..The 30 yr long term avg was like 22" a year lol 

 

Growing up in nj everything always seem to run inland, now it's BM or ots lol

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Picked up .2" of snow overnight.

 

Cant really be mad on locations that average 15-40" of snow a year. I've been following there forums for the last few days and it's been a historic storm for sure. Last year was Bostons and NNEs spots and this year Mid-Atlantic. It goes back and forth every couple years on there big dog storms.

 

KBUF mentions possibility of some LES early this week.

 

BY TUESDAY NIGHT THIS COLD AIR ADVECTION OVER THE EASTERN GREAT
LAKES REGION WILL BRING 850 HPA TEMPERATURES DOWN TO -13 TO -16C
OVER THE LAKES. THIS WILL BEGIN THE FORMATION OF LAKE EFFECT SNOW.
ALOFT AN OPEN UPPER LEVEL TROUGH WILL BE PASSING ACROSS THE CENTRAL
GREAT LAKES REGION...AND SOUTHWEST FLOW AHEAD OF THIS TROUGH
SUGGESTS THAT THE INITIAL BANDS OF SNOW WILL BE TO THE NORTHEAST OF
THE LAKES...THE METRO BUFFALO AREA AND THE WATERTOWN/SLV REGION. AS
THIS OPEN SHORTWAVE DRAWS CLOSER TO THE EASTERN GREAT LAKES REGION
THE BOUNDARY LAYER WINDS WILL VEER...SUCH THAT SNOWS WILL QUICKLY
DROP SOUTHWARD.

THERE ARE SEVERAL FACTORS THAT ARE WORKING AGAINST THIS LAKE EFFECT
SNOW EVENT FROM BECOMING A SIGNIFICANT EVENT. ALOFT THE UPPER LEVEL
PATTERN MATCHES CLOSER TO WEAKER SOUTHWEST FLOW EVENTS FOR BUFFALO
AND THE TUG HILL RATHER THAN STRONG EVENTS OF SEVERAL FEET OR MORE
OF SNOW. THE COLD AIR MASS WILL NOT BE QUITE AS COLD AS RECENT
EVENTS...WITH 850 HPA TEMPERATURES AVERAGING -13 TO -16C...AND NOT
NEAR -20C WITH RECENT EVENTS. ALSO THE LAKES ARE COOLER NOW...WITH
ICE FORMING ON LAKE ERIE. THIS WILL LESSEN THE ALREADY MARGINAL
LAPSE RATES FOR LAKE EFFECT SNOW. FINALLY THE BANDS OF SNOW ARE
EXPECTED TO BE MOVING...WITH THE PASSING OF AN UPPER LEVEL SHORTWAVE
WEDNESDAY. THUS AT THIS TIME WE ARE NOT EXPECTING A LARGE...SEVERAL
FOOT SNOW EVENT FROM THIS LAKE EFFECT SNOW RESPONSE...BUT STILL
MODERATE SNOW ACCUMULATIONS/POTENTIAL HEADLINES ARE
POSSIBLE...ESPECIALLY IF UPSTREAM LAKE BAND CONNECTIONS FORM. WILL
INTRODUCE THIS NEXT LAKE EFFECT SNOW POTENTIAL INTO THE HWO.

AIR TEMPERATURES THIS PERIOD WILL TUMBLE FROM JUST ABOVE FREEZING
MONDAY AND TUESDAY...TO THE UPPER TEENS TO LOWER 20S BY TUESDAY
NIGHT.

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