Alert archive / Massachusetts / Freezing Rain Advisories in 2015
Freezing Rain Advisory 7, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this freezing rain advisory at Dec 30, 2015, 3:49 AM EST for 8 counties in Massachusetts. It took effect at Dec 30, 2015, 7:00 PM EST. It was in force for 8 hr.
The area
The counties it named.
The facts
- Issued
- Dec 30, 2015, 3:49 AM EST (08:49 UTC)
- In effect from
- Dec 30, 2015, 7:00 PM EST
- Expired
- Dec 31, 2015, 3:00 AM EST
- In force
- 8 hr
- 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 08:51 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 00:00Z, 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
- 485 m above ground
- 0-6 km bulk shear
- 94 kt
- 0-1 km storm-relative helicity
- 153 m²/s²
- 0-3 km storm-relative helicity
- 285 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this freezing rain 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 freezing rain advisory went out at Dec 29, 4:48 PM EST, 11 hours 1 minute earlier.
Area forecast discussion, Dec 29, 4:48 PM EST, 11 hours 1 minute before
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</html>Hazardous weather outlook, Dec 29, 4:54 PM EST, 10 hours 55 minutes before
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</html>Nearby
Freezing Rain Advisories in Massachusetts, 2015Every freezing rain advisory in 2015
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.