Alert archive / New York / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 79, NWS Binghamton, NY

July 29, 2020Seneca County, Yates County, New York

NWS Binghamton, NY issued this severe thunderstorm warning at Jul 29, 2020, 4:36 PM EDT for Seneca County, Yates County, New York. It was in force for 39 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 29, 2020, 4:36 PM EDT (20:36 UTC)
Expired: Jul 29, 2020, 5:15 PM EDT
In force: 39 min
Issued by: NWS Binghamton, NY
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Seneca County, NY, Yates County, NY

The radar

The Binghamton radar (KBGM), 98 km from the middle of the area, began a volume at 20:35 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

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 8.6 hours before the alert went out and 144 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: 95 J/kg
Mixed-layer CIN: -33 J/kg
Mixed-layer LCL: 995 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 59 m²/s²
0-3 km storm-relative helicity: 217 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

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 Binghamton, NY wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 29, 4:16 PM EDT, 20 minutes earlier.

Area forecast discussion, Jul 29, 4:16 PM EDT, 20 minutes before

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Hazardous weather outlook, Jul 29, 3:29 PM EDT, 1 hour 7 minutes before

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In the hours before

Local storm report, Jul 29, 1:18 PM EDT, 3 hours 18 minutes before

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Local storm report, Jul 29, 1:22 PM EDT, 3 hours 14 minutes before

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Local storm report, Jul 29, 1:51 PM EDT, 2 hours 45 minutes before

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Special weather statement, Jul 29, 1:57 PM EDT, 2 hours 39 minutes before

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Special weather statement, Jul 29, 2:32 PM EDT, 2 hours 4 minutes before

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Special weather statement, Jul 29, 3:49 PM EDT, 47 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 29, 12:43 PM EDT	Special Weather Statement	BGM	Yates	62 min
Jul 29, 1:10 PM EDT	Severe Thunderstorm Warning	BGM	Cayuga, Seneca, Yates	35 min
Jul 29, 1:26 PM EDT	Severe Thunderstorm Warning	BGM	Steuben	23 min
Jul 29, 1:37 PM EDT	Severe Thunderstorm Warning	BGM	Cayuga, Chenango, Cortland	53 min
Jul 29, 1:57 PM EDT	Special Weather Statement	BGM	Yates	33 min
Jul 29, 2:32 PM EDT	Special Weather Statement	BGM	Cortland	43 min
Jul 29, 3:49 PM EDT	Special Weather Statement	BGM	Steuben, Yates	41 min
Jul 29, 5:09 PM EDT	Severe Thunderstorm Warning	BGM	Onondaga	51 min
Jul 29, 5:41 PM EDT	Special Weather Statement	BGM	Chemung	49 min
Jul 29, 5:53 PM EDT	Special Weather Statement	BGM	Oneida	37 min

Nearby

Severe Thunderstorm Warnings in New York, 2020 Every 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.