Weather alerts in the United States, 2012

105,651 weather alerts in 2012, 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: 105,651
Warnings: 39,918
Watches: 4,734
Advisories: 22,369
Busiest month: July18,756 alerts
Busiest day: July 18, 20121,104 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
Severe Thunderstorm Warning	20,150
Tornado Warning	2,412
Severe Thunderstorm Watch	503
Tornado Watch	197
Mesoscale Discussion	2,249
Special Weather Statement	35,883
Flooding
Areal Flood Warning	750
Flash Flood Warning	2,633
River Flood Warning	1,422
Flash Flood Watch	342
Flood Watch	174
River Flood Watch	132
Areal Flood Advisory	6,645
River Flood Advisory	151
Winter
Blizzard Warning	148
Ice Storm Warning	10
Lake Effect Snow Warning	31
Winter Storm Warning	617
Blizzard Watch	64
Lake Effect Snow Watch	16
Winter Storm Watch	493
Freezing Rain Advisory	101
Lake Effect Snow Advisory	73
Winter Weather Advisory	1,709
Heat
Excessive Heat Warning	141
Excessive Heat Watch	68
Heat Advisory	510
Cold
Extreme Cold Warning	13
Freeze Warning	727
Hard Freeze Warning	71
Wind Chill Warning	28
Extreme Cold Watch	3
Freeze Watch	330
Hard Freeze Watch	29
Wind Chill Watch	2
Frost Advisory	573
Wind Chill Advisory	203
Wind and dust
Dust Storm Warning	31
High Wind Warning	695
High Wind Watch	478
Blowing Dust Advisory	83
Lake Wind Advisory	437
Wind Advisory	2,140
Fire
Red Flag Warning	1,801
Fire Weather Watch	1,195
Fog and smoke
Air Stagnation Advisory	10
Dense Fog Advisory	1,393
Dense Smoke Advisory	24
Freezing Fog Advisory	44
Air Stagnation Outlook	1
Tropical
Hurricane Warning	6
Tropical Storm Warning	35
Hurricane Watch	9
Tropical Storm Watch	28
Hurricane Local Statement	15
Coast and beach
Coastal Flood Warning	56
High Surf Warning	33
Lakeshore Flood Warning	11
Tsunami Warning	2
Coastal Flood Watch	39
Lakeshore Flood Watch	7
Tsunami Watch	1
Coastal Flood Advisory	320
High Surf Advisory	254
Lakeshore Flood Advisory	3
Tsunami Advisory	2
Beach Hazards Statement	76
Coastal Flood Statement	149
Lakeshore Flood Statement	2
Rip Current Statement	250
Marine
Gale Warning	2,481
Hazardous Seas Warning	103
Heavy Freezing Spray Warning	328
Hurricane Force Wind Warning	28
Special Marine Warning	4,760
Storm Warning	395
Gale Watch	503
Hazardous Seas Watch	58
Heavy Freezing Spray Watch	2
Hurricane Force Wind Watch	2
Storm Watch	59
Brisk Wind Advisory	325
Heavy Freezing Spray Advisory	1
Low Water Advisory	57
Marine Dense Fog Advisory	318
Marine Dense Smoke Advisory	2
Small Craft Advisory	5,711
Small Craft Advisory for Hazardous Seas	582
Small Craft Advisory for Rough Bar	250
Small Craft Advisory for Winds	448
Marine Weather Statement	5

By state

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

14 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 2011 2013

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.