Alert archive / New York / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 25, NWS Albany, NY

May 15, 2020Dutchess County, New York; Northwest Hills Planning Region, Connecticut

NWS Albany, NY issued this severe thunderstorm warning at May 15, 2020, 7:59 PM EDT for Dutchess County, New York; Northwest Hills Planning Region, Connecticut. It was in force for 61 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
May 15, 2020, 7:59 PM EDT (23:59 UTC)
Expired
May 15, 2020, 9:00 PM EDT
In force
61 min
Issued by
NWS Albany, NY
Area
Storm-based polygon
Tornado
Possible
Hail
0.75 in
Wind
60.0 mph

Counties Northwest Hills Planning Region, CT, Dutchess County, NY

The radar

The Albany radar (KENX), 99 km from the middle of the area, began a volume at 00:03 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.

IssuedProductOfficeLasted
May 15, 3:32 PM EDTTornado WatchSPC6 hr

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 12.0 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 2020-05-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2020-05-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 136 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
815 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
136 m²/s²
0-3 km storm-relative helicity
149 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 May 15, 7:53 PM EDT, 6 minutes earlier.

Area forecast discussion, May 15, 7:53 PM EDT, 6 minutes before
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Hazardous weather outlook, May 15, 7:02 PM EDT, 57 minutes before
Hazardous Weather Outlook
National Weather Service Albany NY
702 PM EDT Fri May 15 2020

CTZ001-013-MAZ001-025-NYZ043-051>054-058>061-063>066-084-VTZ013>015-
161200-
Northern Litchfield-Southern Litchfield-Northern Berkshire-
Southern Berkshire-Northern Washington-Western Albany-Eastern Albany-
Western Rensselaer-Eastern Rensselaer-Western Greene-Eastern Greene-
Western Columbia-Eastern Columbia-Western Ulster-Eastern Ulster-
Western Dutchess-Eastern Dutchess-Southern Washington-Bennington-
Western Windham-Eastern Windham-
702 PM EDT Fri May 15 2020

...TORNADO WATCH 187 IN EFFECT UNTIL 10 PM EDT THIS EVENING...

This Hazardous Weather Outlook is for northwestern Connecticut,
western Massachusetts, the Capital Region, the mid-Hudson Valley,
the eastern Catskills and the central and southern Taconics in
eastern New York.

.DAY ONE...Tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Tornado Watch.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to Standard Operating Procedures while following
all local, state and CDC guidelines.

NYZ032-033-038>042-047>050-082-083-161200-
Northern Herkimer-Hamilton-Southern Herkimer-Southern Fulton-
Montgomery-Northern Saratoga-Northern Warren-Schoharie-
Western Schenectady-Eastern Schenectady-Southern Saratoga-
Northern Fulton-Southeast Warren-
702 PM EDT Fri May 15 2020

This Hazardous Weather Outlook is for east central New York and
eastern New York.

.DAY ONE...Tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

In the hours before

Local storm report, May 15, 7:54 PM EDT, 5 minutes before
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Local storm report, May 15, 7:55 PM EDT, 4 minutes before
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Local storm report, May 15, 7:56 PM EDT, 3 minutes before
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Local storm report, May 15, 7:57 PM EDT, 2 minutes before
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Local storm report, May 15, 7:58 PM EDT, 1 minute before
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Local storm report, May 15, 7:59 PM EDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
May 15, 3:48 PM EDTSpecial Weather StatementALYLewis27 min
May 15, 4:06 PM EDTSpecial Weather StatementALYHerkimer39 min
May 15, 4:26 PM EDTSevere Thunderstorm WarningALYFulton, Hamilton, Herkimer64 min
May 15, 4:46 PM EDTTornado WarningALYHamilton, Herkimer23 min
May 15, 4:58 PM EDTTornado WarningALYFulton, Hamilton, Herkimer21 min
May 15, 5:11 PM EDTSevere Thunderstorm WarningALYFulton, Hamilton, Saratoga51 min
May 15, 5:42 PM EDTSevere Thunderstorm WarningALYFulton, Montgomery, Rensselaer, Saratoga, Schenectady, Warren and 1 more48 min
May 15, 5:48 PM EDTSevere Thunderstorm WarningALYAlbany, Montgomery, Schenectady, Schoharie42 min
May 15, 6:09 PM EDTSpecial Weather StatementALYDutchess36 min
May 15, 6:16 PM EDTTornado WarningALYWashington29 min
May 15, 6:20 PM EDTSevere Thunderstorm WarningALYAlbany, Greene, Schoharie, Ulster25 min
May 15, 6:22 PM EDTSevere Thunderstorm WarningALYAlbany, Columbia, Greene, Rensselaer, Saratoga, Schenectady38 min
May 15, 6:26 PM EDTSevere Thunderstorm WarningALYRensselaer, Washington49 min
May 15, 6:42 PM EDTSevere Thunderstorm WarningALYColumbia, Dutchess, Greene, Ulster33 min
May 15, 6:59 PM EDTSevere Thunderstorm WarningALYColumbia, Rensselaer31 min
May 15, 7:04 PM EDTSpecial Weather StatementALYDutchess, Ulster41 min
May 15, 7:09 PM EDTSevere Thunderstorm WarningALYDutchess, Ulster51 min
May 15, 7:13 PM EDTSevere Thunderstorm WarningALYColumbia, Dutchess47 min
May 15, 7:21 PM EDTTornado WarningALYUlster24 min
May 15, 7:10 PM EDTTornado WarningALYWindham16 min
May 15, 7:13 PM EDTSevere Thunderstorm WarningALYWindham32 min

Nearby

Severe Thunderstorm Warnings in New York, 2020Severe Thunderstorm Warnings in Connecticut, 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.