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Moderate/Heavy Snow Possible Tuesday/Wednesday 01/12-01/13


dryslot

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Sweet. Why did NWS have to mess with their website so much? Trying to look at probabilistic snowfall and all you get now is a small little pop-up map. I want a more detailed one like we used to have. Has it moved again?

http://www.weather.gov/gyx/winter

 

Mine blow up to full screen when you click on them. Maybe a screen or browser issue?

 

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For historical purposes; this mornings AFD from BOX:

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TAUNTON MA
952 AM EST TUE JAN 12 2016

.SYNOPSIS...
LOW PRESSURE OVER SOUTHERN ONTARIO WILL REDEVELOP IN THE GULF OF
MAINE TONIGHT AND INTENSIFY AS IT MOVES INTO THE MARITIMES
WEDNESDAY. THIS STORM WILL BRING ACCUMULATING SNOW TO THE INTERIOR
OF SOUTHERN NEW ENGLAND LATE AFTERNOON AND THIS EVENING...WITH
RAIN ENDING AS SNOW SHOWERS ALONG THE COAST. WINDY AND COLD
CONDITIONS WILL FOLLOW LATER TONIGHT INTO WEDNESDAY NIGHT. COLD
AND DRY WEATHER CONTINUES THURSDAY...THEN TEMPERATURES MODERATE BY
FRIDAY. ANOTHER STORM SYSTEM WILL LIKELY AFFECT THE REGION
SOMETIME THIS WEEKEND. HOWEVER...THE TIMING AND PRECIPITATION
TYPES REMAIN UNCERTAIN.

&&

.NEAR TERM /UNTIL 2 PM THIS AFTERNOON/...

PATCHY CLOUDS OVER SOUTHERN NEW ENGLAND INCLUDING AN AREA OVER
THE OCEAN SPREADING NORTHEAST OVER CAPE COD AND ISLANDS. EXPECT
CLOUDS OVER NEW YORK TO OVERSPREAD OUR AREA THIS AFTERNOON.
COMPOSITE RADARS AND SURFACE OBS SHOW THE LEADING EDGE OF SNOW
OVER WESTERN NY AND CENTRAL PA MOVING EAST. TREND WOULD BRING THIS
TO THE CT VALLEY AROUND 3-4 PM...BOS-PVD AROUND 5-6 PM.

ADJUSTED HOURLY TEMPERATURES COOLER A FEW DEGREES BASED ON
OBSERVATIONS...BUT TRENDED CLOSE TO ORIGINAL FORECAST HIGH TEMPS
LATER TODAY.

12Z NAM SHOWS TOTALS OF 50 INTO THE REGION FROM WEST TO EAST 4-7
PM WITH HIGHER VALUES OVER EASTERN NEW YORK. MID LEVEL LAPSE RATES
INCREASE TO 6.5 TO 7.5 IN WESTERN MASS/CT DURING THIS TIME. THIS
MAY AID IN DEEPER MIXING IN ANY HEAVIER PCPN IN THESE WESTERN
AREAS THIS EVENING DURING RUSH HOUR. WINDS FORECAST 25-35 KNOTS
AT 2000-5000 FEET AGL. THIS WIND COULD BE BROUGHT DOWN TO THE
SURFACE IN GUSTS WITHIN SOME SHOWERS...CREATING BRIEF POOR VSBYS.

&&

.SHORT TERM /2 PM THIS AFTERNOON THROUGH 6 PM WEDNESDAY/...
*** A PERIOD OF SNOW WITH LOCALLY HEAVY SNOW SQUALLS LIKELY ACROSS
INTERIOR SNE LATE AFTERNOON AND EVENING ***

A RATHER POTENT MID LEVEL SHORTWAVE WILL BE MOVING E FROM THE GT
LAKES AND APPROACHING NEW ENG LATE TODAY. MODEST LOW LEVEL JET
DEVELOPS AHEAD OF THE SHORTWAVE WITH DEEPENING MOISTURE IN THE
COLUMN AND LARGE SCALE FORCING FOR ASCENT. THIS WILL RESULT IN A
PERIOD OF SNOW DEVELOPING IN WESTERN/CENTRAL MA AND N CT MID TO
LATE AFTERNOON. PRECIP REACHES COASTAL PLAIN TOWARD EVENING AND
ALONG AND E OF THE BOS-PVD CORRIDOR TO THE COAST...EXPECT PRECIP
TO BEGIN AS RAIN AS SOUTHERLY FLOW WARMS THE BOUNDARY LAYER. THIS
IS A DYNAMIC SHORTWAVE WITH GOOD MID LEVEL COOLING LEADING TO VERY
STEEP MID LEVEL LAPSE RATES OF 7-8 C/KM. THE STEEP LAPSE RATES
COMBINED WITH A BRIEF PERIOD OF STRONG OMEGA IN THE SNOW GROWTH
REGION SUGGESTS A FEW LOCALLY HEAVY SNOW SQUALLS LATE TODAY AND
EARLY EVENING WITH BTV SNOW SQUALL PARAMETER TARGETING
WESTERN/CENTRAL MA AND PORTIONS OF N CT. ALSO CANT RULE OUT
THUNDER GIVEN THE STEEP LAPSE RATES AND TT NEARING 60 AND HI-RES
GUIDANCE TARGETS SE MA FOR BEST CHANCE OF A TSTM.

LOOKING AT SNOW ACCUM AROUND 1-2 INCHES WEST OF I-95 WITH LOCALLY
UP TO 3 INCHES HIGHER TERRAIN OF CENTRAL AND W MA AND CANT RULE
OUT AN ISOLD 4" AMOUNT IN ANY HEAVY SQUALL. SNOW AND LOCALLY
HEAVY SQUALLS WILL IMPACT THE EVENING COMMUTE...ESPECIALLY
CENTRAL/W NEW ENG WITH POTENTIAL FOR POOR VSBYS AND SNOW COVERED
ROADS...WITH THE SNOW AFFECTING END OF THE COMMUTE ACROSS WESTERN
SUBURBS OF BOS. RAIN IN THE COASTAL PLAIN ALONG AND EAST OF BOS-
PVD THIS EVENING WILL END AS A BRIEF PERIOD OF SNOW SHOWERS 00-03Z
TONIGHT BUT LITTLE OR NO ACCUM IS EXPECTED. CONSIDERED AN ADVISORY
FOR THE HIGHER TERRAIN BUT HELD OFF AS AVERAGE SNOWFALL SHOULD
FALL SHORT FOR MAJORITY OF THE AREA. ISSUED SPS TO COVER THIS
EVENT.

PRECIP ENDS FROM WEST TO EAST THIS EVENING. AS SECONDARY LOW PRES
INTENSIFIES IN MARITIMES...STRONG WESTERLY WINDS WILL DEVELOP
LATE TONIGHT INTO WEDNESDAY IN STRONG COLD ADVECTION PATTERN.
SOUNDINGS SUPPORT WIND GUSTS TO 40-45 MPH AND POSSIBLY UP TO 50
MPH. WIND ADVISORIES WILL NEED TO BE CONSIDERED. GENERALLY DRY
WEATHER WITH PTSUNNY SKIES EXPECTED WEDNESDAY. COLD AIRMASS WITH
850 MB TEMPS DOWN TO -15C TO -16C WILL LEAD TO HIGHS IN THE
20S...TO AROUND 30 IN THE COASTAL PLAIN. STRONG WINDS WILL MAKE IT
FEEL LIKE THE TEENS...AND SINGLE NUMBERS HIGHER ELEVATIONS.

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Some? 4k NAM, HRRR, RAP, RGEM... It looks even better than yesterday. 6pm-9pm for us. It looks to me as if it trended cooler at the surface too. The minute the snow starts to come down heavy... Flips. Paste.

 

I know you weren't trying to down play but wow.. It almost looks like windex on roids.

 

Subtle, but important, differences between the NAM 12 and 4km versions in Bufkit. 4km is slightly cooler at a place like GYX. Instead of getting to +3 at 2 m it gets to +2.

 

Even greater difference at BOS. 12km is +2, and 4km never gets above freezing.

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Subtle, but important, differences between the NAM 12 and 4km versions in Bufkit. 4km is slightly cooler at a place like GYX. Instead of getting to +3 at 2 m it gets to +2.

 

Even greater difference at BOS. 12km is +2, and 4km never gets above freezing.

Yeah, it's going to be awesome later tonight IMO. Even if its only a few inches. When it comes down that quick it has significant impact... 

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We pound

SPECIAL WEATHER STATEMENT

NATIONAL WEATHER SERVICE TAUNTON MA

1120 AM EST TUE JAN 12 2016

CTZ002>004-MAZ002>012-014-015-026-122200-

HARTFORD CT-TOLLAND CT-WINDHAM CT-WESTERN FRANKLIN MA-

EASTERN FRANKLIN MA-NORTHERN WORCESTER MA-CENTRAL MIDDLESEX MA-

WESTERN ESSEX MA-EASTERN ESSEX MA-WESTERN HAMPSHIRE MA-

WESTERN HAMPDEN MA-EASTERN HAMPSHIRE MA-EASTERN HAMPDEN MA-

SOUTHERN WORCESTER MA-SOUTHEAST MIDDLESEX MA-SUFFOLK MA-

NORTHERN MIDDLESEX MA-

INCLUDING THE CITIES OF...HARTFORD...WINDSOR LOCKS...UNION...

VERNON...PUTNAM...WILLIMANTIC...CHARLEMONT...GREENFIELD...

ORANGE...BARRE...FITCHBURG...FRAMINGHAM...LOWELL...LAWRENCE...

GLOUCESTER...CHESTERFIELD...BLANDFORD...AMHERST...NORTHAMPTON...

SPRINGFIELD...MILFORD...WORCESTER...CAMBRIDGE...BOSTON...AYER

1120 AM EST TUE JAN 12 2016

...snow will affect the afternoon commute in much of southern new

england...

snow will begin in western new england around 3 PM or 4 PM and

should reach northeast massachusetts by 6 pm.

locally heavier snow squalls are possible across north central and

northeast massachusetts, including routes 2 and 3 as well as

interstate 495. commuters should be aware of the potential for low

visibility and snow covered roads, especially those heading into

southern new hampshire.

most places will pick up an inch or two of snow by the time it

ends early tonight, but locally as much as 3 or 4 inches of snow

could accumulate in the higher elevations of north central

massachusetts.

plan on extra travel time for the afternoon commute. slow down and

adjust your driving for winter weather conditions.

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Mine blow up to full screen when you click on them. Maybe a screen or browser issue?

 

That page uses the typical jQuery lightbox.  On your average 15" monitor, you only have about 660 pixels of vertical height which causes jQuery to resize the image.  Makes the scale/valid period/image generation time unreadable.

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That page uses the typical jQuery lightbox.  On your average 15" monitor, you only have about 660 pixels of vertical height which causes jQuery to resize the image.  Makes the scale/valid period/image generation time unreadable.

 

Way over my head, but not surprised at all that this wasn't thought of beforehand.

 

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