Alert archive / New York / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 110, NWS Albany, NY

August 29, 2020Fulton County, Hamilton County, Herkimer County, New York

NWS Albany, NY issued this severe thunderstorm warning at Aug 29, 2020, 2:42 PM EDT for Fulton County, Hamilton County, Herkimer County, New York. It was in force for 63 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 29, 2020, 2:42 PM EDT (18:42 UTC)
Expired
Aug 29, 2020, 3:45 PM EDT
In force
63 min
Issued by
NWS Albany, NY
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Fulton County, NY, Hamilton County, NY, Herkimer County, NY

The radar

The Ft Drum radar (KTYX), 94 km from the middle of the area, began a volume at 18:44 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, 6.7 hours before the alert went out and 102 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-pSkew-T log-p diagram, Albany, NY at 12:00Z on 2020-08-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Albany, NY at 12:00Z on 2020-08-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 218 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
1 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
718 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
218 m²/s²
0-3 km storm-relative helicity
275 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 29, 1:38 PM EDT, 1 hour 4 minutes earlier.

Area forecast discussion, Aug 29, 1:38 PM EDT, 1 hour 4 minutes before
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Hazardous weather outlook, Aug 29, 4:14 AM EDT, 10 hours 28 minutes before
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      <h1 id="headline">This service is currently unavailable.</h1>
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In the hours before

Special weather statement, Aug 29, 1:25 PM EDT, 1 hour 17 minutes before
Special Weather Statement
National Weather Service Albany NY
125 PM EDT Sat Aug 29 2020

NYZ040-048>050-291815-
Eastern Schenectady-Western Schenectady-Montgomery-Southern Saratoga-
125 PM EDT Sat Aug 29 2020

...A STRONG THUNDERSTORM WILL AFFECT CENTRAL SCHENECTADY...
SOUTHWESTERN SARATOGA AND EAST CENTRAL MONTGOMERY COUNTIES...

At 124 PM EDT, a strong thunderstorm was located near Amsterdam,
moving east at 25 mph.

Winds in excess of 40 mph are possible with this storm.

Locations impacted include...
Schenectady, Amsterdam, Scotia, Glenville, Niskayuna, Ballston Spa,
Hagaman, Fort Johnson, Rotterdam Junction, Alplaus, East Glenville,
Burnt Hills, Pattersonville-Rotterdam Junction, Charlton, Glenridge,
Hoffmans, Harding Crossing, Young Corners, Garrison Manor and
Aqueduct.

This includes the following highways...
 Interstate 90 between exits 26 and 27.
 Interstate 890 between exits 1a and 4c.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

LAT...LON 4296 7427 4298 7411 4298 7410 4299 7410
      4302 7387 4300 7382 4278 7383 4287 7429
TIME...MOT...LOC 1724Z 270DEG 21KT 4290 7422

DBT
Special weather statement, Aug 29, 2:23 PM EDT, 19 minutes before
Special Weather Statement
National Weather Service Albany NY
223 PM EDT Sat Aug 29 2020

NYZ041-050-053-054-084-291915-
Western Rensselaer-Eastern Rensselaer-Southern Washington-Southern
Saratoga-Northern Saratoga-
223 PM EDT Sat Aug 29 2020

...A STRONG THUNDERSTORM WILL AFFECT SOUTHEASTERN SARATOGA...SOUTHERN
WASHINGTON AND NORTHERN RENSSELAER COUNTIES...

At 223 PM EDT, a strong thunderstorm was located over Country Knolls,
or over Clifton Park, moving east at 30 mph.

Winds in excess of 40 mph are possible with this storm.

Locations impacted include...
Clifton Park, Mechanicville, Hoosick Falls, Salem, Cambridge,
Greenwich, Round Lake, Country Knolls, Malta, Lee, White Creek,
Easton, Stillwater, Schaghticoke, Valley Falls, Schaghticoke Hill,
Center White Creek, Hoosick Junction, Center Falls and Johnsonville.

This includes Interstate 87 between exits 9 and 12.

Torrential rainfall is also occurring with this storm, and may cause
localized poor drainage flooding. Do not drive your vehicle through
flooded roadways.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

LAT...LON 4289 7328 4283 7384 4295 7392 4321 7326
TIME...MOT...LOC 1823Z 252DEG 27KT 4289 7383

TAW
Special weather statement, Aug 29, 2:34 PM EDT, 8 minutes before
Special Weather Statement
National Weather Service Albany NY
234 PM EDT Sat Aug 29 2020

NYZ038-039-082-291915-
Southern Fulton-Southern Herkimer-Northern Fulton-
234 PM EDT Sat Aug 29 2020

...A STRONG THUNDERSTORM WILL AFFECT WESTERN FULTON AND SOUTHERN
HERKIMER COUNTIES...

At 233 PM EDT, a strong thunderstorm was located near Frankfort, or
near Utica, moving east at 25 mph.

Winds in excess of 40 mph are possible with this storm.

Locations impacted include...
Ilion, Herkimer, Little Falls, Mohawk, Frankfort, Dolgeville,
Newport, Stratford, Middleville, Oppenheim, Fairfield, Norway, Ingham
Mills, West Frankfort, Corrado Corners, Curtis, Farrel Corner,
Countryman, North Ilion and Gulph.

This includes Interstate 90 near exit 30.

Torrential rainfall is also occurring with this storm, and may cause
localized poor drainage flooding. Do not drive your vehicle through
flooded roadways.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

LAT...LON 4318 7510 4327 7469 4305 7461 4304 7473
      4305 7476 4304 7475 4299 7521 4305 7522
TIME...MOT...LOC 1833Z 258DEG 23KT 4309 7510

TAW

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 29, 1:25 PM EDTSpecial Weather StatementALYSchenectady50 min
Aug 29, 2:23 PM EDTSpecial Weather StatementALYSaratoga52 min
Aug 29, 2:34 PM EDTSpecial Weather StatementALYFulton41 min
Aug 29, 3:44 PM EDTSpecial Weather StatementALYFulton31 min
Aug 29, 3:51 PM EDTSevere Thunderstorm WarningALYFulton, Hamilton, Saratoga54 min
Aug 29, 4:00 PM EDTSpecial Weather StatementALYOtsego30 min
Aug 29, 4:17 PM EDTTornado WarningALYFulton, Saratoga43 min
Aug 29, 4:54 PM EDTSevere Thunderstorm WarningALYSaratoga, Warren, Washington45 min
Aug 29, 5:11 PM EDTTornado WarningALYSaratoga, Washington34 min
Aug 29, 5:31 PM EDTTornado Warning Tornado observedALYRensselaer, Saratoga, Washington29 min
Aug 29, 5:34 PM EDTSpecial Weather StatementALYHamilton26 min
Aug 29, 6:00 PM EDTTornado WarningALYRensselaer45 min
Aug 29, 6:12 PM EDTSevere Thunderstorm WarningALYSchoharie52 min
Aug 29, 6:19 PM EDTSevere Thunderstorm WarningALYMontgomery, Schenectady, Schoharie56 min
Aug 29, 6:27 PM EDTTornado WarningALYRensselaer33 min
Aug 29, 6:32 PM EDTSevere Thunderstorm WarningALYRensselaer58 min
Aug 29, 6:34 PM EDTSevere Thunderstorm WarningALYWarren, Washington31 min
Aug 29, 6:48 PM EDTSevere Thunderstorm WarningALYAlbany, Saratoga, Schenectady57 min
Aug 29, 7:01 PM EDTSevere Thunderstorm WarningALYGreene, Schoharie, Ulster44 min
Aug 29, 7:13 PM EDTSevere Thunderstorm WarningALYRensselaer47 min
Aug 29, 7:40 PM EDTSevere Thunderstorm WarningALYColumbia, Rensselaer, Washington65 min
Aug 29, 7:57 PM EDTSevere Thunderstorm WarningALYColumbia, Dutchess63 min
Aug 29, 3:15 PM EDTSpecial Weather StatementALYBennington60 min
Aug 29, 7:01 PM EDTSpecial Weather StatementALYBennington29 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.