Alert archive / Vermont / Flash Flood Watches in 2017

Flash Flood Watch 5, NWS Albany, NY

October 23, 2017Bennington County, Windham County, Vermont; Berkshire County, Massachusetts

NWS Albany, NY issued this flash flood watch at Oct 23, 2017, 3:42 PM EDT for Bennington County, Windham County, Vermont; Berkshire County, Massachusetts. It took effect at Oct 24, 2017, 12:00 PM EDT. It was in force for 16 hr.

The area

The counties it named.

The facts

Issued: Oct 23, 2017, 3:42 PM EDT (19:42 UTC)
In effect from: Oct 24, 2017, 12:00 PM EDT
Expired: Oct 25, 2017, 4:00 AM EDT
In force: 16 hr
Issued by: NWS Albany, NY
Flood severity: None

Counties Berkshire County, MA, Bennington County, VT, Windham County, VT

The radar

The Albany radar (KENX), 90 km from the middle of the area, began a volume at 19:47 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, 7.7 hours before the alert went out and 69 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: 1151 m above ground
0-6 km bulk shear: 10 kt
0-1 km storm-relative helicity: 20 m²/s²
0-3 km storm-relative helicity: 33 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 flash flood watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Albany, NY wrote its last area forecast discussion before this flash flood watch went out at Oct 23, 1:35 PM EDT, 2 hours 7 minutes earlier.

Area forecast discussion, Oct 23, 1:35 PM EDT, 2 hours 7 minutes before

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Hazardous weather outlook, Oct 23, 4:06 AM EDT, 11 hours 36 minutes before

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The office that day

Everything else NWS Albany, NY issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Oct 23, 3:36 PM EDT	Wind Advisory	ALY	Albany, Columbia, Dutchess, Fulton, Greene, Hamilton and 8 more	27 hr

Nearby

Flash Flood Watches in Vermont, 2017 Flash Flood Watches in Massachusetts, 2017 Every flash flood watch 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.