Alert archive / Vermont / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 72, NWS Albany, NY

June 30, 2009Bennington County, Windham County, Vermont

NWS Albany, NY issued this severe thunderstorm warning at Jun 30, 2009, 6:24 PM EDT for Bennington County, Windham County, Vermont. It was in force for 66 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: Jun 30, 2009, 6:24 PM EDT (22:24 UTC)
Expired: Jun 30, 2009, 7:30 PM EDT
In force: 66 min
Issued by: NWS Albany, NY
Area: Storm-based polygon

Counties Bennington County, VT, Windham County, VT

The radar

The Albany radar (KENX), 106 km from the middle of the area, began a volume at 22:23 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 30, 11:37 AM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 10.4 hours before the alert went out and 84 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: 191 J/kg
Mixed-layer CIN: -97 J/kg
Mixed-layer LCL: 1100 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 93 m²/s²
0-3 km storm-relative helicity: 92 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

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 Albany, NY wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 30, 5:54 PM EDT, 30 minutes earlier.

Area forecast discussion, Jun 30, 5:54 PM EDT, 30 minutes before

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Hazardous weather outlook, Jun 30, 6:17 PM EDT, 7 minutes before

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In the hours before

Local storm report, Jun 30, 5:07 PM EDT, 1 hour 17 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ALBANY NY
507 PM EDT TUE JUN 30 2009

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0400 PM     TSTM WND DMG     QUEENSBURY              43.36N 73.67W
06/30/2009                   WARREN             NY   EMERGENCY MNGR

            TREES DOWN ON SUNNYSIDE ROAD EAST.

&&

BGM

Local storm report, Jun 30, 5:44 PM EDT, 40 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ALBANY NY
544 PM EDT TUE JUN 30 2009

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0510 PM     TSTM WND DMG     WHITEHALL               43.56N 73.42W
06/30/2009                   WASHINGTON         NY   TRAINED SPOTTER

            MULTIPLE TREES DOWN.

&&

BGM

Local storm report, Jun 30, 5:51 PM EDT, 33 minutes before

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Local storm report, Jun 30, 6:03 PM EDT, 21 minutes before

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Special weather statement, Jun 30, 6:19 PM EDT, 5 minutes before

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Local storm report, Jun 30, 6:23 PM EDT, 1 minute 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
Jun 30, 12:59 PM EDT	Severe Thunderstorm Warning	ALY	Fulton, Herkimer, Montgomery	61 min
Jun 30, 1:22 PM EDT	Areal Flood Advisory	ALY	Fulton, Montgomery, Schoharie	3 hr
Jun 30, 1:45 PM EDT	Flash Flood Warning	ALY	Montgomery	4 hr
Jun 30, 1:53 PM EDT	Severe Thunderstorm Warning	ALY	Fulton, Hamilton, Montgomery	67 min
Jun 30, 1:59 PM EDT	Severe Thunderstorm Warning	ALY	Ulster	46 min
Jun 30, 2:16 PM EDT	Areal Flood Advisory	ALY	Fulton, Hamilton	4 hr
Jun 30, 2:16 PM EDT	Severe Thunderstorm Warning	ALY	Rensselaer, Washington	59 min
Jun 30, 2:30 PM EDT	Severe Thunderstorm Warning	ALY	Washington	25 min
Jun 30, 2:32 PM EDT	Severe Thunderstorm Warning	ALY	Greene, Schoharie, Ulster	58 min
Jun 30, 3:05 PM EDT	Severe Thunderstorm Warning	ALY	Albany, Greene, Schoharie	55 min
Jun 30, 3:15 PM EDT	Severe Thunderstorm Warning	ALY	Saratoga, Warren, Washington	60 min
Jun 30, 3:16 PM EDT	Flash Flood Watch	ALY	Albany, Columbia, Dutchess, Fulton, Greene, Hamilton and 9 more	55 hr
Jun 30, 3:21 PM EDT	Severe Thunderstorm Warning	ALY	Columbia, Dutchess, Greene, Ulster	54 min
Jun 30, 3:35 PM EDT	Severe Thunderstorm Warning	ALY	Albany, Fulton, Montgomery, Saratoga, Schenectady, Schoharie	55 min
Jun 30, 3:39 PM EDT	Areal Flood Advisory	ALY	Columbia, Dutchess, Ulster	4 hr
Jun 30, 3:39 PM EDT	Severe Thunderstorm Warning	ALY	Rensselaer, Saratoga, Washington	66 min
Jun 30, 3:40 PM EDT	Severe Thunderstorm Warning	ALY	Saratoga, Warren	65 min
Jun 30, 3:47 PM EDT	Severe Thunderstorm Warning	ALY	Columbia	58 min
Jun 30, 3:49 PM EDT	Areal Flood Advisory	ALY	Albany, Montgomery, Rensselaer, Saratoga, Schenectady	4 hr
Jun 30, 3:56 PM EDT	Severe Thunderstorm Warning	ALY	Washington	64 min
Jun 30, 3:58 PM EDT	Severe Thunderstorm Warning	ALY	Albany, Rensselaer, Saratoga, Washington	47 min
Jun 30, 4:00 PM EDT	Severe Thunderstorm Warning	ALY	Dutchess, Ulster	45 min
Jun 30, 4:15 PM EDT	Severe Thunderstorm Warning	ALY	Warren, Washington	45 min
Jun 30, 4:22 PM EDT	Severe Thunderstorm Warning	ALY	Saratoga, Warren, Washington	38 min
Jun 30, 4:23 PM EDT	Areal Flood Advisory	ALY	Fulton, Saratoga, Warren, Washington	4 hr
Jun 30, 4:50 PM EDT	Severe Thunderstorm Warning	ALY	Warren, Washington	55 min
Jun 30, 4:42 PM EDT	Severe Thunderstorm Warning	ALY	Bennington, Windham	63 min
Jun 30, 5:34 PM EDT	Severe Thunderstorm Warning	ALY	Bennington	41 min
Jun 30, 5:43 PM EDT	Areal Flood Advisory	ALY	Bennington	4 hr
Jun 30, 5:50 PM EDT	Flash Flood Warning	ALY	Bennington	4 hr
Jun 30, 6:36 PM EDT	Areal Flood Advisory	ALY	Windham	3 hr

Nearby

Severe Thunderstorm Warnings in Vermont, 2009 Every severe thunderstorm warning in 2009

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.