Alert archive / New York / Severe Thunderstorm Warnings in 2024

Severe Thunderstorm Warning 100, NWS Albany, NY

August 19, 2024Rensselaer County, New York

NWS Albany, NY issued this severe thunderstorm warning at Aug 19, 2024, 4:01 PM EDT for Rensselaer County, New York. It was in force for 44 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: Aug 19, 2024, 4:01 PM EDT (20:01 UTC)
Expired: Aug 19, 2024, 4:45 PM EDT
In force: 44 min
Issued by: NWS Albany, NY
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Rensselaer County, NY

The radar

The Albany radar (KENX), 47 km from the middle of the area, began a volume at 20:02 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, 8.0 hours before the alert went out and 26 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: 59 J/kg
Mixed-layer CIN: -28 J/kg
Mixed-layer LCL: 619 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 41 m²/s²
0-3 km storm-relative helicity: 102 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 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 Aug 19, 3:54 PM EDT, 7 minutes earlier.

Area forecast discussion, Aug 19, 3:54 PM EDT, 7 minutes before

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Hazardous weather outlook, Aug 19, 4:09 AM EDT, 11 hours 52 minutes before

Hazardous Weather Outlook
National Weather Service Albany NY
409 AM EDT Mon Aug 19 2024

CTZ001-013-MAZ001-025-NYZ032-033-038>043-047>054-058>061-063>066-
082>084-VTZ013>015-192100-
Northern Litchfield-Southern Litchfield-Northern Berkshire-
Southern Berkshire-Northern Herkimer-Hamilton-Southern Herkimer-
Southern Fulton-Montgomery-Northern Saratoga-Northern Warren-
Northern Washington-Schoharie-Western Schenectady-
Eastern Schenectady-Southern Saratoga-Western Albany-Eastern Albany-
Western Rensselaer-Eastern Rensselaer-Western Greene-Eastern Greene-
Western Columbia-Eastern Columbia-Western Ulster-Eastern Ulster-
Western Dutchess-Eastern Dutchess-Northern Fulton-Southeast Warren-
Southern Washington-Bennington-Western Windham-Eastern Windham-
409 AM EDT Mon Aug 19 2024

This Hazardous Weather Outlook is for northwestern Connecticut,
western Massachusetts, east central New York, eastern New York and
southern Vermont.

.DAY ONE...Today and tonight.

Showers and thunderstorms are expected to develop late this morning
into this afternoon. Locally heavy rainfall will be possible as
repeated heavy downpours may be lead to flooding of urban, low lying,
and poor drainage areas, especially in southern Vermont and southern
Litchfield County which was hard hit with heavy rain yesterday. Some
localized flash flooding and, in southern Litchfield County, renewed
flooding along small streams and creeks is possible. The Weather
Prediction Center has expanded its slight risk into parts of southern
Vermont into parts of Litchfield County with a marginal risk across
the rest of the region.

In addition, a few storms may severe and the Storm Prediction Center
has expanded its marginal risk for severe thunderstorms to cover
most of eastern New York into western New England. Damaging winds
gusts will be the main threat with any storms.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Hazardous weather is not expected at this time.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to relay severe weather and
flooding reports to the National Weather Service in Albany New York.

In the hours before

Special weather statement, Aug 19, 1:39 PM EDT, 2 hours 22 minutes before

Special Weather Statement
National Weather Service Albany NY
139 PM EDT Mon Aug 19 2024

NYZ040-041-048>050-191815-
Eastern Schenectady NY-Western Schenectady NY-Montgomery NY-
Southern Saratoga NY-Northern Saratoga NY-
139 PM EDT Mon Aug 19 2024

...STRONG THUNDERSTORMS WILL IMPACT NORTHEASTERN SCHENECTADY...
SOUTHWESTERN SARATOGA AND EAST CENTRAL MONTGOMERY COUNTIES THROUGH
215 PM EDT...

At 139 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from 6 miles southeast of Edinburg to near
Pattersonville-Rotterdam Junction. Movement was northeast at 20 mph.

HAZARD...Wind gusts up to 40 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor hail damage to vegetation is
         possible.

Locations impacted include...
Scotia, Glenville, Ballston Spa, Galway, Rotterdam Junction, East
Glenville, Burnt Hills, Rock City Falls, Pattersonville-Rotterdam
Junction, North Ballston Spa, Kings, Mount Pleasant, Greenfield,
Charlton, Parkis Mills, Glenridge, Shaw Corners, Hoffmans,
Barkersville, and Harding Crossing.

This includes the following highways...
 Interstate 90 near exit 26.
 Interstate 890 between exits 1a and 1b.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with these storms and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 4298 7412 4298 7410 4302 7410 4320 7401
      4323 7378 4283 7392 4282 7415
TIME...MOT...LOC 1739Z 246DEG 16KT 4318 7397 4284 7412

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH

Picard

Special weather statement, Aug 19, 1:43 PM EDT, 2 hours 18 minutes before

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Special weather statement, Aug 19, 3:14 PM EDT, 47 minutes before

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Special weather statement, Aug 19, 3:41 PM EDT, 20 minutes before

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Local storm report, Aug 19, 3:49 PM EDT, 12 minutes before

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Local storm report, Aug 19, 3:58 PM EDT, 3 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
Aug 18, 8:40 PM EDT	Special Weather Statement	ALY	Herkimer	50 min
Aug 18, 9:29 PM EDT	Special Weather Statement	ALY	Herkimer	46 min
Aug 19, 12:46 PM EDT	Areal Flood Advisory	ALY	Albany, Saratoga, Schenectady	119 min
Aug 19, 1:11 PM EDT	Severe Thunderstorm Warning	ALY	Albany, Rensselaer	34 min
Aug 19, 1:39 PM EDT	Special Weather Statement	ALY	Saratoga	36 min
Aug 19, 1:43 PM EDT	Special Weather Statement	ALY	Rensselaer	32 min
Aug 19, 2:50 PM EDT	Areal Flood Advisory	ALY	Albany, Saratoga, Schenectady	2 hr
Aug 19, 3:04 PM EDT	Flash Flood Warning	ALY	Albany, Schenectady	2 hr
Aug 19, 3:14 PM EDT	Special Weather Statement	ALY	Albany	31 min
Aug 19, 3:41 PM EDT	Special Weather Statement	ALY	Rensselaer	34 min
Aug 19, 4:26 PM EDT	Areal Flood Advisory	ALY	Albany, Columbia, Rensselaer	87 min
Aug 19, 4:32 PM EDT	Special Weather Statement	ALY	Columbia	28 min
Aug 19, 4:54 PM EDT	Areal Flood Advisory	ALY	Columbia, Dutchess, Greene, Ulster	79 min
Aug 19, 7:16 PM EDT	Areal Flood Advisory	ALY	Saratoga	119 min
Aug 19, 1:09 AM EDT	Areal Flood Warning	ALY	Northwest Hills Planning Region	7 hr
Aug 19, 5:07 PM EDT	Special Weather Statement	ALY		23 min

Nearby

Severe Thunderstorm Warnings in New York, 2024 Every severe thunderstorm warning in 2024

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.