Alert archive / Massachusetts / Freezing Rain Advisories in 2009
Freezing Rain Advisory 2, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this freezing rain advisory at Dec 25, 2009, 4:25 PM EST for 7 counties in Massachusetts; Kent County, Providence County, Rhode Island; Capitol Planning Region, Northeastern Connecticut Planning Region, Connecticut. It took effect at Dec 25, 2009, 10:00 PM EST. It was in force for .
The area
The counties it named.
The facts
- Issued
- Dec 25, 2009, 4:25 PM EST (21:25 UTC)
- In effect from
- Dec 25, 2009, 10:00 PM EST
- Expired
- Dec 25, 2009, 7:09 PM EST
- In force
- Issued by
- NWS Boston/Norton, MA
Counties Capitol Planning Region, CT, Northeastern Connecticut Planning Region, CT, Essex County, MA, Franklin County, MA, Hampden County, MA, Hampshire County, MA, Middlesex County, MA, Norfolk County, MA, Worcester County, MA, Kent County, RI, Providence County, RI
The radar
The Boston radar (KBOX), 68 km from the middle of the area, began a volume at 21:25 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, 9.4 hours before the alert went out and 168 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
- 497 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- -41 m²/s²
- 0-3 km storm-relative helicity
- 6 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 25, 3:40 PM EST, 45 minutes earlier.
Area forecast discussion, Dec 25, 3:40 PM EST, 45 minutes before
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Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 25, 4:26 AM EST | Gale Watch | BOX | 24 hr | |
| Dec 25, 4:26 AM EST | Small Craft Advisory | BOX | 3 days |
Nearby
Freezing Rain Advisories in Massachusetts, 2009Freezing Rain Advisories in Rhode Island, 2009Freezing Rain Advisories in Connecticut, 2009Every freezing rain advisory in 2009
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.