Alert archive / New York / Tornado Watches in 2026

Tornado Watch 507

July 21, 20264 states

The Storm Prediction Center issued this tornado watch at Jul 21, 2026, 2:06 PM EDT for 4 states. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued: Jul 21, 2026, 2:06 PM EDT (18:06 UTC)
Expired: Jul 21, 2026, 9:00 PM EDT
In force: 7 hr
Issued by: the Storm Prediction Center
Largest hail expected: 1.5 in
Strongest gust expected: 60 kt

All 66 counties

New Castle County, DE, Atlantic County, NJ, Bergen County, NJ, Burlington County, NJ, Camden County, NJ, Cape May County, NJ, Cumberland County, NJ, Essex County, NJ, Gloucester County, NJ, Hudson County, NJ, Hunterdon County, NJ, Mercer County, NJ, Middlesex County, NJ, Monmouth County, NJ, Morris County, NJ, Ocean County, NJ, Passaic County, NJ, Salem County, NJ, Somerset County, NJ, Sussex County, NJ, Union County, NJ, Warren County, NJ, Bronx County, NY, Broome County, NY, Chenango County, NY, Columbia County, NY, Delaware County, NY, Dutchess County, NY, Fulton County, NY, Greene County, NY, Herkimer County, NY, Kings County, NY, Madison County, NY, Montgomery County, NY, Nassau County, NY, New York County, NY, Oneida County, NY, Orange County, NY, Otsego County, NY, Putnam County, NY, Queens County, NY, Richmond County, NY, Rockland County, NY, Schoharie County, NY, Sullivan County, NY, Ulster County, NY, Westchester County, NY, Berks County, PA, Bucks County, PA, Carbon County, PA, Chester County, PA, Delaware County, PA, Lackawanna County, PA, Lancaster County, PA, Lebanon County, PA, Lehigh County, PA, Luzerne County, PA, Monroe County, PA, Montgomery County, PA, Northampton County, PA, Philadelphia County, PA, Pike County, PA, Schuylkill County, PA, Susquehanna County, PA, Wayne County, PA, Wyoming County, PA

The radar

The Albany radar (KENX), 119 km from the middle of the area, began a volume at 18:09 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.

What SPC expected

The probabilities SPC published with the watch, for the watch area over its life.

Two or more tornadoes: 40%
One or more EF2 to EF5 tornadoes: 20%
Ten or more severe wind reports: 70%
One or more gusts of 65 knots or more: 10%
Ten or more severe hail reports: 40%
One or more hailstones of 2 inches or more: 20%
Six or more combined severe hail and wind reports: 90%

Warnings issued inside it

43 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

Issued	Product	Office	Counties	Lasted
Jul 21, 2:07 PM EDT	Severe Thunderstorm Warning Considerable damage threat	BGM	Broome, Chenango, Delaware, Madison, Otsego	49 min
Jul 21, 2:18 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Lehigh	42 min
Jul 21, 2:22 PM EDT	Tornado Warning	BGM	Otsego	23 min
Jul 21, 2:25 PM EDT	Tornado Warning	PHI	Morris	50 min
Jul 21, 2:29 PM EDT	Tornado Warning	BGM	Sullivan	46 min
Jul 21, 2:37 PM EDT	Flash Flood Warning	BGM	Sullivan	4 hr
Jul 21, 2:43 PM EDT	Severe Thunderstorm Warning	OKX	Bergen, Essex, Passaic	47 min
Jul 21, 2:49 PM EDT	Tornado Warning	OKX	Bergen, Passaic	26 min
Jul 21, 2:49 PM EDT	Flash Flood Warning	PHI	Morris	3 hr
Jul 21, 2:56 PM EDT	Tornado Warning	OKX	Essex	34 min
Jul 21, 2:57 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon	37 min
Jul 21, 2:57 PM EDT	Tornado Warning	PHI	Morris, Somerset	48 min
Jul 21, 3:07 PM EDT	Flash Flood Warning	OKX	Bergen, Essex, Hudson, Passaic	3 hr
Jul 21, 3:10 PM EDT	Severe Thunderstorm Warning Considerable damage threat	BGM	Sullivan	35 min
Jul 21, 3:13 PM EDT	Flash Flood Warning	PHI	Morris, Somerset	3 hr
Jul 21, 3:15 PM EDT	Tornado Warning	OKX	Essex, Passaic	30 min
Jul 21, 3:22 PM EDT	Severe Thunderstorm Warning	CTP	Schuylkill	53 min
Jul 21, 3:23 PM EDT	Severe Thunderstorm Warning	ALY	Dutchess, Ulster	67 min
Jul 21, 3:33 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster, York	57 min
Jul 21, 3:37 PM EDT	Severe Thunderstorm Warning	PHI	Chester, Delaware	53 min
Jul 21, 3:38 PM EDT	Flash Flood Warning	OKX	Bergen	3 hr
Jul 21, 3:47 PM EDT	Severe Thunderstorm Warning	PHI	Carbon, Monroe	43 min
Jul 21, 3:53 PM EDT	Flash Flood Warning	ALY	Dutchess, Ulster	3 hr
Jul 21, 3:55 PM EDT	Severe Thunderstorm Warning	BGM	Luzerne	17 min
Jul 21, 3:58 PM EDT	Severe Thunderstorm Warning	PHI	New Castle	47 min
Jul 21, 4:04 PM EDT	Flash Flood Warning	OKX	Hudson	3 hr
Jul 21, 4:12 PM EDT	Flash Flood Warning	OKX	Westchester	3 hr
Jul 21, 4:12 PM EDT	Severe Thunderstorm Warning	OKX	Bronx, Nassau, Queens, Suffolk, Westchester	48 min
Jul 21, 4:21 PM EDT	Flash Flood Warning	OKX	Bronx, Nassau, Queens, Suffolk	3 hr
Jul 21, 4:23 PM EDT	Severe Thunderstorm Warning	PHI	Chester, Delaware, Montgomery, Philadelphia	52 min
Jul 21, 4:31 PM EDT	Flash Flood Warning	PHI	Chester, Delaware	96 min
Jul 21, 4:38 PM EDT	Flash Flood Warning Considerable damage threat	PHI	New Castle	4 hr
Jul 21, 4:43 PM EDT	Severe Thunderstorm Warning	PHI	New Castle	47 min
Jul 21, 4:50 PM EDT	Severe Thunderstorm Warning	PHI	Mercer, Middlesex, Monmouth, Somerset	55 min
Jul 21, 5:14 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden	46 min
Jul 21, 5:30 PM EDT	Severe Thunderstorm Warning	PHI	New Castle	45 min
Jul 21, 5:49 PM EDT	Tornado Warning	PHI	Cape May	26 min
Jul 21, 6:00 PM EDT	Severe Thunderstorm Warning	PHI	Kent, New Castle	45 min
Jul 21, 6:06 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Ocean	39 min
Jul 21, 6:09 PM EDT	Tornado Warning	PHI	Cape May	36 min
Jul 21, 6:34 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Ocean	41 min
Jul 21, 6:53 PM EDT	Flash Flood Warning	PHI	Kent, New Castle	3 hr
Jul 21, 7:06 PM EDT	Tornado Warning	PHI	Ocean	12 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 6.1 hours before the alert went out and 165 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1211 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 135 m²/s²
0-3 km storm-relative helicity: 172 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 21, 1:23 PM EDT	Mesoscale Discussion	SPC	Kent, New Castle	2 hr
Jul 21, 2:46 PM EDT	Severe Thunderstorm Watch	SPC	Kent, Sussex	11 hr
Jul 21, 3:40 PM EDT	Mesoscale Discussion	SPC	Kent, New Castle	95 min
Jul 21, 4:43 PM EDT	Mesoscale Discussion	SPC	Kent, Sussex	92 min
Jul 21, 12:15 PM EDT	Mesoscale Discussion	SPC	Garrett	2 hr
Jul 21, 1:53 PM EDT	Mesoscale Discussion	SPC	Anne Arundel, Calvert, Caroline, Charles, Dorchester, Howard and 8 more	97 min
Jul 21, 7:57 PM EDT	Mesoscale Discussion	SPC	Charles	2 hr
Jul 21, 10:35 AM EDT	Mesoscale Discussion	SPC	Bergen, Essex, Hudson	85 min
Jul 21, 5:42 PM EDT	Mesoscale Discussion	SPC	Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 2 more	93 min
Jul 21, 4:16 PM EDT	Mesoscale Discussion	SPC	Cattaraugus, Chautauqua, Erie, Genesee, Niagara, Orleans and 1 more	89 min
Jul 21, 1:13 PM EDT	Severe Thunderstorm Watch	SPC	Allegheny, Beaver, Fayette, Greene, Washington, Westmoreland	10 hr

Nearby

Tornado Watches in New York, 2026 Tornado Watches in New Jersey, 2026 Tornado Watches in Pennsylvania, 2026 Every tornado watch in 2026

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.