New York, 2020

Heat and Damaging Winds in New York, July 11, 2020

July 11, 2020 · NWS ALY · 13 events in 13 counties and zones

A hot and humid airmass resulted in heat indices around 95 degrees during the afternoon and evening of July 11th in the Hudson Valley. A severe thunderstorm developed in this airmass and moved through the Mid-Hudson Valley during the evening, resulting in a couple of wind damage reports.

Where it happened

Every event with a place to put it; 11 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.

  • Tornadoes
  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

Open the live radar over this ground

The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
13

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS ALY wrote it up.

A hot and humid airmass resulted in heat indices around 95 degrees during the afternoon and evening of July 11th in the Hudson Valley. A severe thunderstorm developed in this airmass and moved through the Mid-Hudson Valley during the evening, resulting in a couple of wind damage reports.

What forecasters said that day

The local office's own words before the first event, 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 the first event at Jul 11, 10:11 AM EST, 49 minutes earlier.

Area forecast discussion, Jul 11, 10:11 AM EST, 49 minutes before
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Hazardous weather outlook, Jul 11, 4:08 AM EST, 6 hours 52 minutes before
Hazardous Weather Outlook
National Weather Service Albany NY
508 AM EDT Sat Jul 11 2020

CTZ001-013-MAZ001-025-NYZ032-033-038>040-042-043-047-048-051-054-058-
061-063-066-082-VTZ013>015-121100-
Northern Litchfield-Southern Litchfield-Northern Berkshire-
Southern Berkshire-Northern Herkimer-Hamilton-Southern Herkimer-
Southern Fulton-Montgomery-Northern Warren-Northern Washington-
Schoharie-Western Schenectady-Western Albany-Eastern Rensselaer-
Western Greene-Eastern Columbia-Western Ulster-Eastern Dutchess-
Northern Fulton-Bennington-Western Windham-Eastern Windham-
508 AM EDT Sat Jul 11 2020

This Hazardous Weather Outlook is for northwestern Connecticut,
western Massachusetts, eastern New York excluding the Hudson River
Valley, and for southern Vermont.

.DAY ONE...Today and tonight.

There is a Marginal Risk for severe thunderstorms this afternoon and
evening. The main threat would be damaging wind gusts. Thunderstorms
should move from the southwest, toward the northeast at 20 to 25 mph.

In addition, thunderstorms may produce locally heavy rainfall, which
could produce isolated flash flooding in areas where storms persist.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

There is a chance of thunderstorms Monday, Thursday and Friday.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to Standard Operating Procedures. Please relay
any information about observed severe weather or flooding to the NWS
while following all local, state and CDC guidelines.

NYZ041-049-050-052-053-059-060-064-065-083-084-121100-
Northern Saratoga-Eastern Schenectady-Southern Saratoga-
Eastern Albany-Western Rensselaer-Eastern Greene-Western Columbia-
Eastern Ulster-Western Dutchess-Southeast Warren-Southern Washington-
508 AM EDT Sat Jul 11 2020

...HEAT ADVISORY IN EFFECT FROM NOON TODAY TO 7 PM EDT THIS
EVENING...

This Hazardous Weather Outlook is for the Hudson River Valley of
from Glens Falls south to Poughkeepsie in eastern New York.

.DAY ONE...Today and tonight.

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

   Heat Advisory.

There is a Marginal Risk for severe thunderstorms this afternoon and
evening. The main threat would be damaging wind gusts. Thunderstorms
should move from the southwest, toward the northeast at 20 to 25 mph.

In addition, thunderstorms may produce locally heavy rainfall, which
could produce isolated flash flooding in areas where storms persist.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

There is a chance of thunderstorms Monday, Thursday and Friday.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to Standard Operating Procedures. Please relay
any information about observed severe weather or flooding to the NWS
while following all local, state and CDC guidelines.

The radar

The Albany radar (KENX), 60 km away, was scanning. The volume nearest the first event began at 23:19 UTC.

Open the radar archive at this moment

Event by event

11 heat, 2 thunderstorm wind. Local standard time, as filed.

Heat, Northern Saratoga

When
July 11, 11:00 AM EST to 6:00 PM EST
Where
Northern Saratoga forecast zone
Reported by
Mesonet
Coordinates
43.107, -73.864 (the zone’s center; the record gives no point)

Heat, Eastern Schenectady

When
July 11, 11:00 AM EST to 6:00 PM EST
Where
Eastern Schenectady forecast zone
Reported by
Mesonet
Coordinates
42.818, -74.059 (the zone’s center; the record gives no point)

Heat, Southern Saratoga

When
July 11, 11:00 AM EST to 6:00 PM EST
Where
Southern Saratoga forecast zone
Reported by
Mesonet
Coordinates
43.107, -73.864 (the zone’s center; the record gives no point)

Heat, Eastern Albany

When
July 11, 11:00 AM EST to 6:00 PM EST
Where
Eastern Albany forecast zone
Reported by
Mesonet
Coordinates
42.600, -73.974 (the zone’s center; the record gives no point)

Heat, Western Rensselaer

When
July 11, 11:00 AM EST to 6:00 PM EST
Where
Western Rensselaer forecast zone
Reported by
Mesonet
Coordinates
42.711, -73.510 (the zone’s center; the record gives no point)

Heat, Eastern Greene

When
July 11, 11:00 AM EST to 6:00 PM EST
Where
Eastern Greene forecast zone
Reported by
Mesonet
Coordinates
42.277, -74.123 (the zone’s center; the record gives no point)

Heat, Western Columbia

When
July 11, 11:00 AM EST to 6:00 PM EST
Where
Western Columbia forecast zone
Reported by
Mesonet
Coordinates
42.250, -73.632 (the zone’s center; the record gives no point)

Heat, Eastern Ulster

When
July 11, 11:00 AM EST to 6:00 PM EST
Where
Eastern Ulster forecast zone
Reported by
Mesonet
Coordinates
41.888, -74.259 (the zone’s center; the record gives no point)

Heat, Western Dutchess

When
July 11, 11:00 AM EST to 6:00 PM EST
Where
Western Dutchess forecast zone
Reported by
Mesonet
Coordinates
41.765, -73.743 (the zone’s center; the record gives no point)

Heat, Southeast Warren

When
July 11, 11:00 AM EST to 6:00 PM EST
Where
Southeast Warren forecast zone
Reported by
Mesonet
Coordinates
43.561, -73.846 (the zone’s center; the record gives no point)

Heat, Southern Washington

When
July 11, 11:00 AM EST to 6:00 PM EST
Where
Southern Washington forecast zone
Reported by
Mesonet
Coordinates
43.314, -73.431 (the zone’s center; the record gives no point)

Thunderstorm Wind, Ulster

When
July 11, 6:18 PM EST
Where
Ulster County, 0.69 mi N of Esopus
Measured
50 kt (58 mph) estimated gust
Reported by
Emergency Manager
Coordinates
41.830, -73.970

A tree was downed near Esopus.

Thunderstorm Wind, Dutchess

When
July 11, 6:19 PM EST
Where
Dutchess County, 0.69 mi S of Fairview
Measured
50 kt (58 mph) estimated gust
Reported by
Law Enforcement
Coordinates
41.710, -73.930

A tree was downed onto power lines.

What these are

Heat
Heat below excessive heat criteria that still caused deaths, injuries or significant impacts.
Thunderstorm Wind
Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in New York in 2020Every state in 2020This day in weather historyWarnings in New York, July 2020

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-10-01. Each event’s entry at NCEI: 909080, 909081, 909082, 909083, 909084, 909085, 909086, 909087, 909088, 909089, 909090, 909061, 909062.