Alert archive / Massachusetts / Winter Storm Watches in 2019
Winter Storm Watch 3, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this winter storm watch at Feb 10, 2019, 3:49 PM EST for 8 counties in Massachusetts. It took effect at Feb 12, 2019, 12:00 PM EST. It was in force for .
The area
The counties it named.
The facts
- Issued
- Feb 10, 2019, 3:49 PM EST (20:49 UTC)
- In effect from
- Feb 12, 2019, 12:00 PM EST
- Expired
- Feb 12, 2019, 3:05 AM EST
- In force
- Issued by
- NWS Boston/Norton, MA
Counties Essex County, MA, Franklin County, MA, Hampden County, MA, Hampshire County, MA, Middlesex County, MA, Norfolk County, MA, Suffolk County, MA, Worcester County, MA
The radar
The Boston radar (KBOX), 72 km from the middle of the area, began a volume at 20:50 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
Albany, NY (KALY), launched 12:00Z, 8.8 hours before the alert went out and 171 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1061 m above ground
- 0-6 km bulk shear
- 100 kt
- 0-1 km storm-relative helicity
- -3 m²/s²
- 0-3 km storm-relative helicity
- 183 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 10, 12:56 PM EST, 2 hours 53 minutes earlier.
Area forecast discussion, Feb 10, 12:56 PM EST, 2 hours 53 minutes before
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</html>Hazardous weather outlook, Feb 10, 3:16 AM EST, 12 hours 33 minutes before
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Local storm report, Feb 10, 1:51 PM EST, 1 hour 58 minutes before
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</html>Nearby
Winter Storm Watches in Massachusetts, 2019Every winter storm watch in 2019
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.