Alert archive / Vermont / Special Weather Statements in 2017
Special Weather Statement, NWS Burlington, VT
NWS Burlington, VT issued this special weather statement at Jul 20, 2017, 4:56 PM EDT for Washington County, Vermont. It was in force for 64 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jul 20, 2017, 4:56 PM EDT (20:56 UTC)
- Expired
- Jul 20, 2017, 6:00 PM EDT
- In force
- 64 min
- Issued by
- NWS Burlington, VT
County Washington County, VT
The radar
The Burlington radar (KCXX), 49 km from the middle of the area, began a volume at 20:57 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
Gray, ME (KGYX), launched 12:00Z, 8.9 hours before the alert went out and 193 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
- 12 J/kg
- Mixed-layer CIN
- -123 J/kg
- Mixed-layer LCL
- 1382 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 46 m²/s²
- 0-3 km storm-relative helicity
- 109 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
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</html>What forecasters said that day
The local office's own words before this special weather statement 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 special weather statement went out at Jul 20, 3:47 PM EDT, 1 hour 9 minutes earlier.
Area forecast discussion, Jul 20, 3:47 PM EDT, 1 hour 9 minutes before
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</html>Hazardous weather outlook, Jul 20, 3:37 AM EDT, 13 hours 19 minutes before
Hazardous Weather Outlook National Weather Service Burlington VT 337 AM EDT Thu Jul 20 2017 NYZ026>031-034-035-087-VTZ001>012-016>019-210745- 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- 337 AM EDT Thu Jul 20 2017 This Hazardous Weather Outlook is for northern New York, central Vermont, northeast Vermont, northwest Vermont and southern Vermont. .DAY ONE...Today and Tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
In the hours before
Special weather statement, Jul 20, 12:56 PM EDT, 4 hours before
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</html>Special weather statement, Jul 20, 2:11 PM EDT, 2 hours 45 minutes before
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</html>Local storm report, Jul 20, 3:31 PM EDT, 1 hour 25 minutes before
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</html>Special weather statement, Jul 20, 4:30 PM EDT, 26 minutes before
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</html>Special weather statement, Jul 20, 4:56 PM EDT, 0 minutes before
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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 |
|---|---|---|---|---|
| Jul 20, 12:56 PM EDT | Special Weather Statement | BTV | Grand Isle | 64 min |
| Jul 20, 2:11 PM EDT | Special Weather Statement | BTV | Rutland | 64 min |
| Jul 20, 4:30 PM EDT | Special Weather Statement | BTV | Franklin | 60 min |
| Jul 19, 8:48 PM EDT | Special Weather Statement | BTV | St. Lawrence | 57 min |
Nearby
Special Weather Statements in Vermont, 2017Every special weather statement in 2017
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.