Alert archive / Massachusetts / Winter Weather Advisories in 2016

Winter Weather Advisory 2, NWS Boston/Norton, MA

January 9, 2016Franklin County, Hampden County, Hampshire County, Massachusetts

NWS Boston/Norton, MA issued this winter weather advisory at Jan 9, 2016, 12:37 AM EST for Franklin County, Hampden County, Hampshire County, Massachusetts. It was in force for 10 hr.

The area

The counties it named.

The facts

Issued
Jan 9, 2016, 12:37 AM EST (05:37 UTC)
Expired
Jan 9, 2016, 11:00 AM EST
In force
10 hr
Issued by
NWS Boston/Norton, MA

Counties Franklin County, MA, Hampden County, MA, Hampshire County, MA

The radar

The Albany radar (KENX), 121 km from the middle of the area, began a volume at 05:41 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Chatham, MA (KCHH), launched 00:00Z, 5.6 hours before the alert went out and 232 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Chatham, MA at 00:00Z on 2016-01-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Chatham, MA at 00:00Z on 2016-01-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 75 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
647 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
75 m²/s²
0-3 km storm-relative helicity
141 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this winter weather advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Boston/Norton, MA wrote its last area forecast discussion before this winter weather advisory went out at Jan 8, 10:19 PM EST, 2 hours 18 minutes earlier.

Area forecast discussion, Jan 8, 10:19 PM EST, 2 hours 18 minutes before
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Hazardous weather outlook, Jan 8, 4:25 PM EST, 8 hours 12 minutes before
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In the hours before

Special weather statement, Jan 8, 10:05 PM EST, 2 hours 32 minutes before
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Special weather statement, Jan 9, 12:06 AM EST, 31 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
1206 AM EST SAT JAN 9 2016

MAZ002-004-008-009-026-091000-
WESTERN FRANKLIN MA-NORTHERN WORCESTER MA-WESTERN HAMPSHIRE MA-
WESTERN HAMPDEN MA-NORTHERN MIDDLESEX MA-
INCLUDING THE CITIES OF...CHARLEMONT...BARRE...FITCHBURG...
CHESTERFIELD...BLANDFORD...AYER
1206 AM EST SAT JAN 9 2016

...SPOTTY FREEZING DRIZZLE AND LIGHT SNOW MAY RESULT IN SLIPPERY
TRAVEL OVERNIGHT ALONG THE EAST SLOPES OF THE BERKSHIRES AND
HIGHER TERRAIN OF THE NORTHERN WORCESTER HILLS...

SPOTTY FREEZING DRIZZLE AND AREAS OF LIGHT SNOW WILL AFFECT THE
HIGHER TERRAIN ALONG THE EAST SLOPES OF THE BERKSHIRES AND
NORTHERN WORCESTER HILLS OVERNIGHT. THE MAIN CONCERN IS FOR
ELEVATIONS OVER 1000 FEET ESPECIALLY ALONG THE EAST SLOPES OF THE
BERKSHIRES. WHILE ANY SPOTTY FREEZING DRIZZLE OR LIGHT SNOW WILL
BE RATHER LIGHT...UNTREATED ROADS MAY BE SLIPPERY. DRIVE WITH
EXTRA CAUTION IN THIS REGION OVERNIGHT.

FRANK

The office that day

Everything else NWS Boston/Norton, MA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 9, 3:09 AM ESTGale WarningBOX66 hr
Jan 9, 4:17 AM ESTHigh Wind WatchBOXBarnstable, Bristol, Dukes, Essex, Middlesex, Nantucket and 3 more24 hr

Nearby

Winter Weather Advisories in Massachusetts, 2016Every winter weather advisory in 2016

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.