Weather alerts in the United States, 2016

116,896 weather alerts in 2016, from the National Weather Service and the Storm Prediction Center. Each alert counts once, however many counties it covered.

Weather alerts by state

Each state shaded by its count. Tap a state for its own archive.

Alerts: 116,896
Warnings: 39,678
Watches: 3,978
Advisories: 24,288
Busiest month: July21,227 alerts
Busiest day: July 8, 20161,043 alerts

Over time

By month

By product

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

Product	Alerts
Severe storms
Extreme Wind Warning	1
Severe Thunderstorm Warning	18,377
Tornado Warning	2,049
Severe Thunderstorm Watch	389
Tornado Watch	129
Mesoscale Discussion	1,917
Special Weather Statement	46,111
Flooding
Areal Flood Warning	1,407
Flash Flood Warning	3,481
River Flood Warning	3,400
Flash Flood Watch	556
Flood Watch	164
River Flood Watch	142
Areal Flood Advisory	8,353
River Flood Advisory	388
Hydrologic Statement	4
Winter
Blizzard Warning	85
Ice Storm Warning	15
Lake Effect Snow Warning	60
Winter Storm Warning	551
Blizzard Watch	41
Lake Effect Snow Watch	46
Winter Storm Watch	426
Freezing Rain Advisory	157
Lake Effect Snow Advisory	105
Winter Weather Advisory	1,824
Heat
Excessive Heat Warning	105
Excessive Heat Watch	50
Heat Advisory	529
Cold
Freeze Warning	483
Hard Freeze Warning	41
Wind Chill Warning	53
Freeze Watch	252
Hard Freeze Watch	17
Wind Chill Watch	19
Frost Advisory	491
Wind Chill Advisory	297
Wind and dust
Dust Storm Warning	24
High Wind Warning	489
High Wind Watch	315
Blowing Dust Advisory	97
Lake Wind Advisory	287
Wind Advisory	1,718
Fire
Red Flag Warning	1,005
Fire Weather Watch	659
Fog and smoke
Air Stagnation Advisory	6
Ashfall Advisory	1
Dense Fog Advisory	1,209
Dense Smoke Advisory	7
Freezing Fog Advisory	54
Tropical
Hurricane Warning	12
Tropical Storm Warning	42
Hurricane Watch	13
Tropical Storm Watch	30
Coast and beach
Coastal Flood Warning	72
High Surf Warning	47
Lakeshore Flood Warning	3
Coastal Flood Watch	32
Tsunami Watch	2
Coastal Flood Advisory	496
High Surf Advisory	303
Lakeshore Flood Advisory	7
Beach Hazards Statement	352
Coastal Flood Statement	152
Lakeshore Flood Statement	1
Rip Current Statement	415
Marine
Gale Warning	2,532
Hazardous Seas Warning	117
Heavy Freezing Spray Warning	256
Hurricane Force Wind Warning	26
Special Marine Warning	4,565
Storm Warning	380
Gale Watch	630
Hazardous Seas Watch	16
Heavy Freezing Spray Watch	4
Hurricane Force Wind Watch	2
Storm Watch	44
Brisk Wind Advisory	277
Heavy Freezing Spray Advisory	22
Low Water Advisory	43
Marine Dense Fog Advisory	276
Small Craft Advisory	6,333
Small Craft Advisory for Hazardous Seas	489
Small Craft Advisory for Rough Bar	270
Small Craft Advisory for Winds	249

By state

Every state and territory, with the alerts that covered any part of it. Each state’s page lists every one of them.

15 more states

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now The tornado archive The radar archive 2015 2017

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.