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Pittsburgh, PA Thread: Winter 2015-2016


meatwad

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SHORT TERM /6 PM THIS EVENING THROUGH TUESDAY/...

SEVERAL SUCCESSIVE WAVES WILL KEEP THE AREA RATHER UNSETTLED

THROUGH EARLY IN THE WEEK. ISENTROPIC ASCENT BEGINS OVER THE AREA

ON MONDAY AS A NORTHERN STREAM WAVE MOVES THROUGH THE GREAT LAKES.

MODEL QPF IS EXCEEDINGLY LIGHT WITH THIS SYSTEM...HOWEVER GOOD

SATURATION IS NOTED IN THE 285-295K LAYER WITH CONDENSATION

PRESSURE DEFICITS DROPPING DECIDEDLY BELOW 10 MB FOR MUCH OF THE

DAY. THIS COINCIDES WITH A SATURATION OF THE DENDRITIC GROWTH

LAYER...HOWEVER BOUNDARY LAYER RH VALUES BELOW IT ARE RATHER

ANEMIC. THE RESULT WILL SEEMINGLY BE EFFICIENT SNOW GROWTH WITH

ABUNDANT SUBLIMATION IN THE BOUNDARY LAYER. WITH LIGHT QPF...THE

NET RESULT SEEMS TO BE GENERAL LIGHT SNOW ON MONDAY WITH FAR LESS

THAN AN INCH POSSIBLE MOST EVERYWHERE.

ANOTHER DEEPER WAVE RIDES THROUGH THE MIDDLE ATLANTIC MONDAY NIGHT

INTO TUESDAY. THE MODEL CONSENSUS HAS SHIFTED DECIDEDLY WEST WITH

THE LOW LEVEL REFLECTION OF THIS SYSTEM. MOST GUIDANCE NOW TRACKS

THE 850 MB LOW THROUGH EASTERN OHIO OR UP THE NORTHERN PANHANDLE

OF WEST VIRGINIA. AS A RESULT...AN ALL SNOW FORECAST SEEMS LIKE AN

IMPOSSIBILITY. MODEL SOUNDINGS SUGGEST A PERIOD OF SLEET AND

FREEZING RAIN AFTER INITIAL WARM ADVECTION SNOW

DEVELOPS...HOWEVER THE DURATION OF TIME THE BOUNDARY LAYER WOULD

REMAIN COLD ENOUGH IS FAR FROM CERTAIN. SCREAMING 850 MB FLOW FROM

THE SOUTHWEST INTO THE RIDGES AND METRO PITTSBURGH SUGGESTS THE

PERIOD OF ICING MAY END UP BEING LOWER IN DURATION THAN ONE WOULD

THINK GIVEN WE ARE SITTING AT ZERO DEGREES RIGHT NOW.

HOWEVER...GROUND TEMPERATURES ARE LIKELY VERY COLD AND WILL BE

VERY COLD AT THE ONSET OF THE EVENT. THUS...FREEZING RAIN WORDING

WAS USED IN A FAIRLY HEAVY- HANDED FASHION THROUGH THE FORECAST.

GIVEN MODEL WAFFLING AND TRENDS...IT WOULD SEEM MOST AREAS WOULD

SEE A COUPLE INCHES OF SNOW...BEFORE SOME ICE...AND MANY AREAS

SOUTH OF PITTSBURGH AND EVEN IN THE RIDGES WOULD GO ALL RAIN

OVERNIGHT MONDAY NIGHT. GIVEN THAT NONE OF THE PARAMETERS ARE

LIKELY TO MEET WARNING CRITERIA IN AND OF THEMSELVES...NO WATCHES

HAVE BEEN ISSUED. ADDITIONALLY...GIVEN THAT MODEL TRENDS HAVE BEEN

ANYTHING BUT IN UNISON...CONFIDENCE IS NOT ANYWHERE NEAR HIGH

ENOUGH TO ISSUED ADVISORIES AT THIS EARLY JUNCTURE. THUS...HWO

WORDING HAS BEEN MAINTAINED AND FURTHER SCRUTINY CAN BE GIVEN BY

FURTHER SHIFTS WITH REGARD TO SNOW/ICE/RAIN POTENTIAL. FRIES

 

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Never had much confidence in this system to produce snow, at least down in my neck of the woods. It was a losing bet.

Hopefully we get another chance at snow in a couple weeks. Last couple winters have featured decent March snow so I'm not going to say winter is completely done.

Yeah, the trend this winter has been for more opportunities than not.

This was always gonna have a better chance to be your winter to finally cash in, with the nino/southern stream storms.

The NWS should give you a part time job to measure snow at Hart Field.

It's been too long. Lol

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There second call was 4pm today , But they said on face book it's been moved to 530 pm.

Are these people meteorologists or are they just weenies that started their own page? 

 

It looks like we are back to our normal warm tongue storm with a little sleet and freezing rain to rain and dusting on the backside. We really haven't had any of those yet this year and we usually have several each winter.

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Are these people meteorologists or are they just weenies that started their own page?

It looks like we are back to our normal warm tongue storm with a little sleet and freezing rain to rain and dusting on the backside. We really haven't had any of those yet this year and we usually have several each winter.

Is dt a weenie?
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Are these people meteorologists or are they just weenies that started their own page? 

 

It looks like we are back to our normal warm tongue storm with a little sleet and freezing rain to rain and dusting on the backside. We really haven't had any of those yet this year and we usually have several each winter.

weenies & are TERRIBLE

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They updated and looks like dt one.

Actually theirs looks more reasonable than DT's

 

g1139.png?resize=1024%2C579

AREA  A – Up to 1″ of snow is likely as the front end of the storm moves in Monday Morning and Afternoon. This area will then change to all rain for the rest of the storm. AREA  B  – 1-2″ of snow is likely Monday Morning and Early Afternoon before changing over to all rain by the evening.  AREA  C – 2-3″ of snow is likely Monday Morning into the Early Afternoon before changing over to freezing rain which will cause about .1″ of ice accretion before changing over to all rain by Monday Evening. AREA  D – 3-5″ of snow is likely Monday Morning into the Afternoon before changing over to freezing rain between 6-10 PM. Freezing rain will then continue through about 2-5 AM, when precipitation type will shift to plain rain. Up to .25″ of ice accretion is expected which could cause scattered power outages. AREA  E – 5-8″ of snow is likely Monday Afternoon into Early Tuesday Morning before changing to plain rain by the AM Commute. AREA  F – 8-12″ of snow is likely Monday Evening through Tuesday Afternoon which will cause travel disruptions. This area will stay all snow.
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Actually theirs looks more reasonable than DT's

g1139.png?resize=1024%2C579AREA A – Up to 1″ of snow is likely as the front end of the storm moves in Monday Morning and Afternoon. This area will then change to all rain for the rest of the storm. AREA B – 1-2″ of snow is likely Monday Morning and Early Afternoon before changing over to all rain by the evening. AREA C – 2-3″ of snow is likely Monday Morning into the Early Afternoon before changing over to freezing rain which will cause about .1″ of ice accretion before changing over to all rain by Monday Evening. AREA D – 3-5″ of snow is likely Monday Morning into the Afternoon before changing over to freezing rain between 6-10 PM. Freezing rain will then continue through about 2-5 AM, when precipitation type will shift to plain rain. Up to .25″ of ice accretion is expected which could cause scattered power outages. AREA E – 5-8″ of snow is likely Monday Afternoon into Early Tuesday Morning before changing to plain rain by the AM Commute. AREA F – 8-12″ of snow is likely Monday Evening through Tuesday Afternoon which will cause travel disruptions. This area will stay all snow.

Looks like dt one from a few days ago
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