Jump to content
  • Member Statistics

    17,598
    Total Members
    7,904
    Most Online
    PublicWorks143
    Newest Member
    PublicWorks143
    Joined

Pittsburgh/ Western PA Part III


Recommended Posts

  • Replies 1.1k
  • Created
  • Last Reply

NWS Says models are further North?

 

NEXT SYSTEM OF INTEREST IS ANOTHER SHORTWAVE WHICH SWEEPS ACROSS
THE GREAT LAKES THURSDAY NIGHT AND THEN THE SAINT LAWRENCE RIVER
VALLEY ON FRIDAY. MODELS ARE IN DECENT AGREEMENT IN
STRENGTH/TIMING...WITH THE TRACK OF THIS SYSTEM FURTHER NORTH THAN
THE PREVIOUS.
THIS WILL MEAN LESS OF A LAKE INFLUENCE AS WINDS
KEEP A MORE WESTERLY COMPONENT. ACCOMPANYING THE SHORTWAVE WILL BE
A REINFORCING COLD FRONT WHICH CROSSES EITHER SIDE OF 12Z FRIDAY.
A NORTH/SOUTH GRADIENT OF POPS LOOKS APPROPRIATE...AND WILL
CONTINUE TO KEEP LIKELY ALONG AND NORTH OF I-80.
..WHERE
THE LONGEST PERIOD OF MOISTURE AND LIFT WILL BE FOUND IN THE
DENDRITIC GROWTH ZONE. A FEW INCHES OF ACCUMULATION WILL BE
POSSIBLE HERE IN A 24 TO 36 HOUR PERIOD...WITH ACCUMULATIONS
BECOMING LESS THAN AN INCH TOTAL SOUTH OF PIT.
TEMPERATURES WILL
LIKELY SHOW A NON-DIURNAL TREND WITH RISING VALUES IN THE WARM
ADVECTION AHEAD OF THE SYSTEM THURSDAY NIGHT...AND FALLING VALUES
BEHIND THE FRONT FRIDAY.

Link to comment
Share on other sites

NWS Says models are further North?

NEXT SYSTEM OF INTEREST IS ANOTHER SHORTWAVE WHICH SWEEPS ACROSS

THE GREAT LAKES THURSDAY NIGHT AND THEN THE SAINT LAWRENCE RIVER

VALLEY ON FRIDAY. MODELS ARE IN DECENT AGREEMENT IN

STRENGTH/TIMING...WITH THE TRACK OF THIS SYSTEM FURTHER NORTH THAN

THE PREVIOUS. THIS WILL MEAN LESS OF A LAKE INFLUENCE AS WINDS

KEEP A MORE WESTERLY COMPONENT. ACCOMPANYING THE SHORTWAVE WILL BE

A REINFORCING COLD FRONT WHICH CROSSES EITHER SIDE OF 12Z FRIDAY.

A NORTH/SOUTH GRADIENT OF POPS LOOKS APPROPRIATE...AND WILL

CONTINUE TO KEEP LIKELY ALONG AND NORTH OF I-80...WHERE

THE LONGEST PERIOD OF MOISTURE AND LIFT WILL BE FOUND IN THE

DENDRITIC GROWTH ZONE. A FEW INCHES OF ACCUMULATION WILL BE

POSSIBLE HERE IN A 24 TO 36 HOUR PERIOD...WITH ACCUMULATIONS

BECOMING LESS THAN AN INCH TOTAL SOUTH OF PIT. TEMPERATURES WILL

LIKELY SHOW A NON-DIURNAL TREND WITH RISING VALUES IN THE WARM

ADVECTION AHEAD OF THE SYSTEM THURSDAY NIGHT...AND FALLING VALUES

BEHIND THE FRONT FRIDAY.

No, that isn't what it says. It says the track is further north than the previous system, which is obvious...not that the models moved north.

Link to comment
Share on other sites

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PITTSBURGH PA
130 PM EST WED JAN 7 2015

PAZ020-021-029-073>076-WVZ001-002-072000-
ALLEGHENY PA-BEAVER PA-BROOKE WV-FAYETTE PA-FAYETTE RIDGES PA-
HANCOCK WV-WASHINGTON PA-WESTMORELAND PA-WESTMORELAND RIDGES PA-
130 PM EST WED JAN 7 2015

...A SNOW SQUALL WILL AFFECT ALLEGHENY...EXTREME NORTHEASTERN
FAYETTE...HANCOCK...NORTHEASTERN BROOKE...NORTHERN WASHINGTON...
SOUTHWESTERN BEAVER AND WESTERN WESTMORELAND COUNTIES...

AT 117 PM EST...A SNOW SQUALL WAS ALONG A LINE FROM NEW CUMBERLAND TO
DELMONT...MOVING SOUTHEAST AT 15 MPH. WIND GUSTS TO 40 MPH ARE
POSSIBLE WITH THIS SNOW SQUALL AND VISIBILITIES WILL RAPIDLY DROP
TO LESS THAN A QUARTER OF A MILE. THE COMBINATION OF RAPIDLY
CHANGING VISIBILITIES AND SLICK ROADS WILL SIGNIFICANTLY INCREASE
THE LIKELIHOOD OF ACCIDENTS AND MOTORISTS ARE URGED TO USE EXTRA
CAUTION IF YOU MUST TRAVEL AND CANNOT DELAY TRAVEL UNTIL LATER THIS
AFTERNOON WHEN CONDITIONS IMPROVE.


LOCATIONS IMPACTED INCLUDE...
TOMLINSON RUN STATE PARK... NEW MANCHESTER...
SOUTH SIDE PITTSBURGH...
RACCOON CREEK STATE PARK...
DOWNTOWN PITTSBURGH... PERRYSVILLE...
NORTH SIDE PITTSBURGH... MURRYSVILLE...
MOUNT WASHINGTON... MOON... MONROEVILLE...
IMPERIAL...

Link to comment
Share on other sites

The Canadian is still insistent bringing the friday clipper further south. Something to watch I guess

I saw this too and it gives us a nice little burst of snow. Now the Nam is south and wetter as well. We may be looking at another 1-2 inch snowfall early Friday morning. Not a big storm but it is trending better.

I just had some really gusty winds go through. I am guessing with wind chills tonight most schools will delay tomorrow.

Link to comment
Share on other sites

It looks like that squall line near I-80 has turned deadly. 3 killed and 30 injured.

When we wish for extreme weather we often forget about the consequences.

 

http://www.post-gazette.com/news/transportation/2015/01/07/14-vehicle-accident-on-I-80-near-Clarion-kills-at-least-one-person/stories/201501070185

Link to comment
Share on other sites

Special Weather Statement
SPECIAL WEATHER STATEMENTNATIONAL WEATHER SERVICE PITTSBURGH PA650 PM EST WED JAN 7 2015PAZ020-021-029-080015-ALLEGHENY PA-BEAVER PA-WASHINGTON PA-650 PM EST WED JAN 7 2015...A SNOW SQUALL WILL AFFECT EAST CENTRAL WASHINGTON...SOUTH CENTRALBEAVER AND SOUTHWESTERN ALLEGHENY COUNTIES...AT 650 PM EST...A SNOW SQUALL WAS LOCATED NEAR IMPERIAL...MOVINGSOUTHEAST AT 30 MPH...AND WILL IMPACT 376 WEST OF PITTSBURGH ANDPORTIONS OF INTERSTATE 79 FROM JUST NORTH OF ROBINSON TO SOUTH OFBRIDGEVILLE.THIS SNOW SQUALL WILL RAPIDLY DROP VISIBILITY TO LESS THAN A QUARTEROF A MILE AND ALSO COVER PREVIOUSLY TREATED ROADS CREATING DANGEROUSDRIVING CONDITIONS.  LOCATIONS IMPACTED INCLUDE...  MOON...               IMPERIAL...           HARSHAVILLE...  ROBINSON TOWNSHIP...  OAKDALE...            IMPERIAL-ENLOW...  CARNOT-MOON...        INGRAM...             CRAFTON...  CARNEGIE...           GREEN TREE...         BRIDGEVILLE...PLEASE REPORT SIGNIFICANT WEATHER BY POSTING TO THE NWS PITTSBURGHFACEBOOK PAGE OR BY USING TWITTER @NWSPITTSBURGH.LAT...LON 4033 7985 4024 7995 4055 8043 4062 8035$$

Striking coincidence that it's directly downwind of Shippingport. Power Plant effect snow?

On edit: Or not. Oldest radar image available ATTM shows it upwind of Shippingport. Never mind...


post-826-0-14003100-1420676020_thumb.png

Link to comment
Share on other sites

I cannot believe most schools had 2 hr delay. City of Pgh too. A lot of city kids have no proper winter cloths.its not like we go below zero a lot. What's up with clipper for tomm???

Looking at the radar, it looks like the southern extent of snow is much further south than modeled. Hopefully we can get an inch or 2 out of it.

Link to comment
Share on other sites

Looking at the radar, it looks like the southern extent of snow is much further south than modeled. Hopefully we can get an inch or 2 out of it.

the problem is the clippers look good when they are to the west but as they head east they lose steam.
Link to comment
Share on other sites

Archived

This topic is now archived and is closed to further replies.

Guest
This topic is now closed to further replies.
  • Recently Browsing   0 members

    • No registered users viewing this page.

×
×
  • Create New...