Alert archive / Vermont / Snow Squall Warnings in 2018
Snow Squall Warning 7, NWS Burlington, VT
NWS Burlington, VT issued this snow squall warning at Nov 21, 2018, 3:00 PM EST for 6 counties in Vermont. It was in force for 60 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Nov 21, 2018, 3:00 PM EST (20:00 UTC)
- Expired
- Nov 21, 2018, 4:00 PM EST
- In force
- 60 min
- Issued by
- NWS Burlington, VT
- Area
- Storm-based polygon
Counties Addison County, VT, Caledonia County, VT, Chittenden County, VT, Orange County, VT, Washington County, VT, Windsor County, VT
The radar
The Burlington radar (KCXX), 59 km from the middle of the area, began a volume at 20:03 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, 8.0 hours before the alert went out and 187 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
- 973 m above ground
- 0-6 km bulk shear
- 78 kt
- 0-1 km storm-relative helicity
- 303 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 snow squall warning 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 snow squall warning went out at Nov 21, 2:58 PM EST, 2 minutes earlier.
Area forecast discussion, Nov 21, 2:58 PM EST, 2 minutes before
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</html>Hazardous weather outlook, Nov 21, 4:04 AM EST, 10 hours 56 minutes before
Hazardous Weather Outlook National Weather Service Burlington VT 404 AM EST Wed Nov 21 2018 NYZ026>031-034-035-087-VTZ001>012-016>019-220915- Northern St. Lawrence-Northern Franklin-Eastern Clinton- Southeastern St. Lawrence-Southern Franklin-Western Clinton- Western Essex-Eastern Essex-Southwestern St. Lawrence-Grand Isle- Western Franklin-Orleans-Essex-Western Chittenden-Lamoille-Caledonia- Washington-Western Addison-Orange-Western Rutland-Windsor- Eastern Franklin-Eastern Chittenden-Eastern Addison-Eastern Rutland- 404 AM EST Wed Nov 21 2018 This Hazardous Weather Outlook is for northern New York, central Vermont, northeast Vermont, northwest Vermont and southern Vermont. .DAY ONE...Today and tonight. Snow squalls are expected across northern New York during the mid to late morning hours today and from midday to mid afternoon across much of Vermont. Affected locations will see rapidly changing weather and road conditions...with brief heavy snow and gusty winds. A quick snow accumulation of 1 or 2 inches is possible along with near zero visibilities. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
In the hours before
Local storm report, Nov 21, 11:34 AM EST, 3 hours 26 minutes before
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</html>Local storm report, Nov 21, 11:57 AM EST, 3 hours 3 minutes before
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</html>Local storm report, Nov 21, 1:32 PM EST, 1 hour 28 minutes before
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</html>Local storm report, Nov 21, 1:34 PM EST, 1 hour 26 minutes before
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</html>Local storm report, Nov 21, 1:58 PM EST, 1 hour 2 minutes before
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</html>Local storm report, Nov 21, 2:11 PM EST, 49 minutes before
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Please try again in a few minutes.
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</html>The office that day
Everything else NWS Burlington, VT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 21, 11:32 AM EST | Snow Squall Warning | BTV | Addison, Chittenden, Essex, Franklin, Grand Isle, Lamoille and 2 more | 43 min |
| Nov 21, 12:16 PM EST | Snow Squall Warning | BTV | Addison, Caledonia, Chittenden, Franklin, Lamoille, Orange and 2 more | 44 min |
| Nov 21, 12:52 PM EST | Snow Squall Warning | BTV | Addison, Caledonia, Essex, Lamoille, Orange, Orleans and 3 more | 53 min |
| Nov 21, 1:28 PM EST | Snow Squall Warning | BTV | Addison, Chittenden, Lamoille, Orange, Washington | 62 min |
| Nov 21, 2:06 PM EST | Snow Squall Warning | BTV | Rutland, Windsor | 54 min |
| Nov 21, 8:57 AM EST | Special Weather Statement | BTV | St. Lawrence | 48 min |
Nearby
Snow Squall Warnings in Vermont, 2018Every snow squall warning in 2018
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.