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Jan 20th snow event


Thundersnow12

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Part of 648pm Area Forecast Discussion from NWS Cleveland...

SHORT TERM /6 AM THURSDAY MORNING THROUGH SATURDAY NIGHT/

THE SYNOPTIC PORTION OF THIS EVENT WILL MOVE THROUGH FAST AND BE

FOCUSED ON THURSDAY...QUICKLY OVERSPREADING MOST OF THE AREA

DURING THE MORNING HOURS. WE ARE LOOKING AT A QUICK 1 TO 3 INCH

SNOW WITH BREEZY SOUTH WIND SHIFTING TO THE WEST WITH THE FRONTAL

PASSAGE. ACROSS THE WEST...MAY HAVE FALLING TEMPS FOR THE

AFTERNOON. THURSDAY NIGHT WE GET A BRIEF LAKE EFFECT SET UP. AGAIN

IT IS A SHORT WINDOW OF OPPORTUNITY. A FEW SCATTERED SNOW SHOWERS

WILL REMAIN FRIDAY MORNING. SOME LIMITED CLEARING POSSIBLE OUTSIDE

OF THE SNOWBELT. TEMPS THURSDAY NIGHT STILL LOOK TO BE COLD AND

WILL KEEP THEM BETWEEN 10 AND 15 OR SO.

HIGH PRESSURE SHIFTS ACROSS THE AREA EARLY FRIDAY. WARM ADVECTION

SNOW WILL OVERSPREAD THE AREA FROM THE WEST LATE FRIDAY. INCREASED

POPS FOR FRIDAY NIGHT INTO THE CATEGORICAL RANGE. THIS SYSTEM WILL

BE A SOUTHERN SYSTEM. ITS TRACK AND THE AMOUNT OF WARM AIR PUSH

WILL DETERMINE PRECIP TYPE...ESPECIALLY ACROSS THE SOUTH. THE NAM

IS THE FURTHEST NORTH...GFS FURTHEST SOUTH AND THE ECMWF IN

BETWEEN. HAVE DECIDED TO INTRODUCE THE POSSIBILITY OF A WINTRY MIX

FRIDAY NIGHT. FORECAST SOUNDINGS AT THIS POINT LOOK MORE LIKE

SLEET WITH A DEEPER SUB-FREEZING LAYER WITH A NOSE OF WARMER AIR

ALOFT...BUT STAY TUNED. OTHERWISE A SEVERAL INCH SNOW IS THE MOST

LIKELY ACROSS THE AREA AND ALONG AND SOUTH OF US 30 WILL MENTION

THE CHANCE OF SLEET/WINTRY MIX. WILL HIGHLIGHT IN POSSIBILITY IN

THE HAZARDOUS WEATHER OUTLOOK AT THIS POINT IN THE FORECAST AS

SOME SORT OF HEADLINE MAY BE NEEDED. HPC HAS ALSO PAINTED SOME

ICING IN THE FORECAST TOO. THIS MIX COULD LINGER INTO SATURDAY

MORNING...BUT AGAIN THIS IS A QUICK SYSTEM AND WILL SCOOT ACROSS

FAST ENOUGH THAT PRECIP WILL BE PULLING AWAY SATURDAY. DRIER HIGH

PRESSURE BUILDS IN SATURDAY NIGHT.

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Toledo looks solid for a good thumping. Like there placement for a more wetter solution.

The southern half of DTX's CWA could be flirting with borderline warning criteria. I like where we are at this point.

Mixing with sleet near the Ohio Border will trim down snow totals... Hence weaker ratios.

Sweet spot is between 94 and 69. Ratios will be higher in the 13-17 to 1 category.

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What's crazy about the Euro solution is not only does it give areas like Madison and Milwaukee a half inch of QPF, but 850 temps are in the -8 to -10 range, pretty much the optimal range for the DGR. I don't think we will be able to have a better run for the duration of this model watching period, except maybe by the jacked up NAM.

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Looks like they are ignoring the Euro/NAM

I don't know why the NAM should be considered right now, completely out of line with any other model

Mixing with sleet near the Ohio Border will trim down snow totals... Hence weaker ratios.

Sweet spot is between 94 and 69. Ratios will be higher in the 13-17 to 1 category.

Why sleet? If anything, it would either be all snow or freezing rain which the NAM shows.

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I don't know why the NAM should be considered right now, completely out of line with any other model

Why sleet? If anything, it would either be all snow or freezing rain which the NAM shows.

ok even if it's Freezing rain it still would knock down totals and that means lower snow ratio's is why I think the heaviest snow will be north of Detroit

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What's crazy about the Euro solution is not only does it give areas like Madison and Milwaukee a half inch of QPF, but 850 temps are in the -8 to -10 range, pretty much the optimal range for the DGR. I don't think we will be able to have a better run for the duration of this model watching period, except maybe by the jacked up NAM.

No you would want them to be colder if you want a deeper DGZ.

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