Alert archive / Vermont / Winter Weather Advisories in 2021

Winter Weather Advisory 13, NWS Burlington, VT

November 25, 20219 counties in Vermont; 4 counties in New York

NWS Burlington, VT issued this winter weather advisory at Nov 25, 2021, 3:21 PM EST for 9 counties in Vermont; 4 counties in New York. It took effect at Nov 26, 2021, 1:00 PM EST. It was in force for 15 hr.

The area

The counties it named.

The facts

Issued: Nov 25, 2021, 3:21 PM EST (20:21 UTC)
In effect from: Nov 26, 2021, 1:00 PM EST
Expired: Nov 27, 2021, 3:51 AM EST
In force: 15 hr
Issued by: NWS Burlington, VT

Counties Clinton County, NY, Essex County, NY, Franklin County, NY, St. Lawrence County, NY, Addison County, VT, Caledonia County, VT, Chittenden County, VT, Essex County, VT, Franklin County, VT, Orange County, VT, Orleans County, VT, Rutland County, VT, Washington County, VT

The radar

The Burlington radar (KCXX), 14 km from the middle of the area, began a volume at 20:24 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, 8.4 hours before the alert went out and 199 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: 1781 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 110 m²/s²
0-3 km storm-relative helicity: 210 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 Burlington, VT wrote its last area forecast discussion before this winter weather advisory went out at Nov 25, 12:37 PM EST, 2 hours 44 minutes earlier.

Area forecast discussion, Nov 25, 12:37 PM EST, 2 hours 44 minutes before

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Hazardous weather outlook, Nov 25, 3:21 PM EST, 0 minutes before

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        The site you requested is temporarily down for maintenance or an unexpected outage.
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The office that day

Everything else NWS Burlington, VT issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Nov 25, 2:59 AM EST	Winter Storm Watch	BTV	Addison, Caledonia, Chittenden, Essex, Franklin, Lamoille and 1 more	12 hr
Nov 25, 3:21 PM EST	Winter Storm Warning	BTV	Addison, Chittenden, Franklin, Lamoille, Rutland	37 hr

Nearby

Winter Weather Advisories in Vermont, 2021 Winter Weather Advisories in New York, 2021 Every winter weather advisory in 2021

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.