Weather alerts in Jefferson County, New York

2,832 weather alerts since 1986, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Jefferson County and its neighbors

Each county as a circle sized by its count since 1986. Tap one for its archive.

Alerts: 2,832
Warnings: 857
Watches: 486
Advisories: 692
Busiest year: 2022200 alerts
Average year: 69over 41 years on file

Over time

By year

Before late 2005 the archive holds only tornado, severe thunderstorm, flash flood and marine warnings, and from 1997 SPC's watches, so the jump that year is the archive widening, not the weather.

By month of the year

By product

Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.

Product	Alerts
Severe storms
Severe Thunderstorm Warning	371
Tornado Warning	14
Severe Thunderstorm Watch	113
Tornado Watch	12
Mesoscale Discussion	292
Special Weather Statement	414
Flooding
Areal Flood Warning	17
Flash Flood Warning	19
River Flood Warning	21
Flash Flood Watch	17
Flood Watch	50
Areal Flood Advisory	16
Winter
Blizzard Warning	5
Heavy Snow Warning	3
Ice Storm Warning	4
Lake Effect Snow Warning	138
Snow Squall Warning	5
Winter Storm Warning	89
Lake Effect Snow Watch	67
Winter Storm Watch	107
Freezing Rain Advisory	21
Lake Effect Snow Advisory	64
Lake Effect Snow and Blowing Snow Advisory	2
Snow Advisory	7
Snow and Blowing Snow Advisory	1
Winter Weather Advisory	268
Heat
Excessive Heat Warning	1
Excessive Heat Watch	2
Heat Advisory	24
Cold
Extreme Cold Warning	3
Freeze Warning	32
Hard Freeze Warning	2
Wind Chill Warning	23
Extreme Cold Watch	2
Freeze Watch	17
Wind Chill Watch	15
Cold Weather Advisory	3
Frost Advisory	61
Wind Chill Advisory	52
Wind and dust
High Wind Warning	57
High Wind Watch	43
Wind Advisory	154
Fog and smoke
Air Stagnation Advisory	5
Dense Fog Advisory	14
Coast and beach
Lakeshore Flood Warning	53
Lakeshore Flood Watch	41
Beach Hazards Statement	91

The latest warnings

The most recent on file, newest first.

Issued	Product	Office	Lasted
Sep 2, 8:59 PM EDT	Severe Thunderstorm Warning	BUF	63 min
Aug 14, 3:25 PM EDT	Severe Thunderstorm Warning	BUF	34 min
Aug 14, 2:57 PM EDT	Severe Thunderstorm Warning	BUF	48 min
Jul 21, 1:26 PM EDT	Severe Thunderstorm Warning	BUF	28 min
Jul 1, 8:57 PM EDT	Severe Thunderstorm Warning Considerable damage threat	BUF	33 min
Jul 1, 8:36 PM EDT	Severe Thunderstorm Warning Considerable damage threat	BUF	54 min
Jul 1, 8:03 PM EDT	Severe Thunderstorm Warning	BUF	57 min
Jun 30, 11:30 PM EDT	Severe Thunderstorm Warning	BUF	60 min
Jun 30, 10:42 PM EDT	Severe Thunderstorm Warning	BUF	48 min
Jun 30, 1:56 PM EDT	Severe Thunderstorm Warning Considerable damage threat	BUF	51 min
Jun 30, 12:35 PM EDT	Severe Thunderstorm Warning Considerable damage threat	BUF	85 min
Jun 26, 5:43 AM EDT	Severe Thunderstorm Warning	BUF	18 min

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive

Sources

National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Rebuilt daily.