Alert archive / Massachusetts / Winter Storm Watches in 2008

Winter Storm Watch 7, NWS Boston/Norton, MA

February 21, 200810 counties in Massachusetts; Providence County, Rhode Island; Capitol Planning Region, Northeastern Connecticut Planning Region, Connecticut

NWS Boston/Norton, MA issued this winter storm watch at Feb 21, 2008, 11:46 AM EST for 10 counties in Massachusetts; Providence County, Rhode Island; Capitol Planning Region, Northeastern Connecticut Planning Region, Connecticut. It took effect at Feb 22, 2008, 6:00 AM EST. It was in force for .

The area

The counties it named.

The facts

Issued: Feb 21, 2008, 11:46 AM EST (16:46 UTC)
In effect from: Feb 22, 2008, 6:00 AM EST
Expired: Feb 21, 2008, 4:09 PM EST
In force
Issued by: NWS Boston/Norton, MA

Counties Capitol Planning Region, CT, Northeastern Connecticut Planning Region, CT, Bristol County, MA, Essex County, MA, Franklin County, MA, Hampden County, MA, Hampshire County, MA, Middlesex County, MA, Norfolk County, MA, Plymouth County, MA, Suffolk County, MA, Worcester County, MA, Providence County, RI

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 4.8 hours before the alert went out and 175 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1349 m above ground
0-6 km bulk shear: 63 kt
0-1 km storm-relative helicity: -16 m²/s²
0-3 km storm-relative helicity: 120 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 storm watch 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 storm watch went out at Feb 21, 10:27 AM EST, 1 hour 19 minutes earlier.

Area forecast discussion, Feb 21, 10:27 AM EST, 1 hour 19 minutes before

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Hazardous weather outlook, Feb 21, 4:11 AM EST, 7 hours 35 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 21, 4:09 PM EST	Winter Storm Warning	BOX	Bristol, Essex, Franklin, Hampden, Hampshire, Middlesex and 4 more	33 hr
Feb 21, 4:09 PM EST	Winter Weather Advisory	BOX	Barnstable, Bristol, Dukes, Nantucket, Plymouth	34 hr

Nearby

Winter Storm Watches in Massachusetts, 2008 Winter Storm Watches in Connecticut, 2008 Winter Storm Watches in Rhode Island, 2008 Every winter storm watch in 2008

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.