Alert archive / New York / Severe Thunderstorm Warnings in 2020
Severe Thunderstorm Warning 32, NWS Burlington, VT
NWS Burlington, VT issued this severe thunderstorm warning at Jul 7, 2020, 4:52 PM EDT for St. Lawrence County, New York. It was in force for 38 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
- Jul 7, 2020, 4:52 PM EDT (20:52 UTC)
- Expired
- Jul 7, 2020, 5:30 PM EDT
- In force
- 38 min
- Issued by
- NWS Burlington, VT
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County St. Lawrence County, NY
The radar
The Ft Drum radar (KTYX), 94 km from the middle of the area, began a volume at 20:53 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, 8.9 hours before the alert went out and 226 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
- 924 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 53 m²/s²
- 0-3 km storm-relative helicity
- 58 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Jul 7, 3:20 PM EDT, 1 hour 32 minutes earlier.
Area forecast discussion, Jul 7, 3:20 PM EDT, 1 hour 32 minutes before
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</html>Hazardous weather outlook, Jul 7, 3:03 AM EDT, 13 hours 49 minutes before
Hazardous Weather Outlook National Weather Service Burlington VT 303 AM EDT Tue Jul 7 2020 NYZ029>031-034-080715- Southeastern St. Lawrence-Southern Franklin-Western Clinton- Western Essex- 303 AM EDT Tue Jul 7 2020 This Hazardous Weather Outlook is for northern New York. .DAY ONE...Today and tonight. Isolated thunderstorms are possible this afternoon across the northern Adirondacks. Brief heavy rainfall and dangerous cloud to ground lightning are expected to be the primary threats. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Additional thunderstorms are possible during the day Wednesday. A few stronger storms are possible. Also, temperatures in the low to mid 90s are possible Thursday through Saturday, and may result in heat related health concerns. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. NYZ026>028-035-087-VTZ001>012-016>019-080715- Northern St. Lawrence-Northern Franklin-Eastern Clinton- 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- 303 AM EDT Tue Jul 7 2020 This Hazardous Weather Outlook is for northern New York, central Vermont, northeast Vermont, northwest Vermont and southern Vermont. .DAY ONE...Today and tonight. Hazardous weather is not expected at this time. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Scattered thunderstorms are expected during the day Wednesday. From the Champlain Valley eastward, a few severe thunderstorms are possible, producing localized strong winds and hail. Heat and humidity will also be on the increase later this week. Temperatures and heat index values in the low to mid 90s are expected Thursday through Saturday, and may result in heat related health concerns. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
In the hours before
Special weather statement, Jul 7, 4:25 PM EDT, 27 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 7, 4:25 PM EDT | Special Weather Statement | BTV | St. Lawrence | 50 min |
| Jul 7, 5:14 PM EDT | Special Weather Statement | BTV | St. Lawrence | 61 min |
Nearby
Severe Thunderstorm Warnings in New York, 2020Every severe thunderstorm warning in 2020
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.