Weather alerts in the United States, 2010

97,839 weather alerts in 2010, 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: 97,839
Warnings: 44,692
Watches: 5,591
Advisories: 25,412
Busiest month: June16,789 alerts
Busiest day: August 5, 2010911 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	19,317
Tornado Warning	3,445
Severe Thunderstorm Watch	488
Tornado Watch	286
Mesoscale Discussion	2,165
Special Weather Statement	19,574
Flooding
Areal Flood Warning	1,610
Flash Flood Warning	4,084
Hydrologic Warning	2
River Flood Warning	4,468
Flash Flood Watch	650
Flood Watch	287
River Flood Watch	256
Areal Flood Advisory	8,485
Hydrologic Advisory	1
River Flood Advisory	489
Hydrologic Statement	1
Winter
Blizzard Warning	139
Ice Storm Warning	13
Lake Effect Snow Warning	55
Winter Storm Warning	870
Blizzard Watch	51
Lake Effect Snow Watch	28
Winter Storm Watch	740
Freezing Rain Advisory	148
Lake Effect Snow Advisory	125
Winter Weather Advisory	2,211
Heat
Excessive Heat Warning	130
Excessive Heat Watch	70
Heat Advisory	631
Cold
Freeze Warning	660
Hard Freeze Warning	167
Wind Chill Warning	62
Freeze Watch	326
Hard Freeze Watch	95
Wind Chill Watch	13
Frost Advisory	634
Wind Chill Advisory	441
Wind and dust
Dust Storm Warning	33
High Wind Warning	550
High Wind Watch	359
Blowing Dust Advisory	15
Lake Wind Advisory	476
Wind Advisory	1,940
Fire
Red Flag Warning	1,684
Fire Weather Watch	1,217
Fog and smoke
Air Stagnation Advisory	7
Dense Fog Advisory	1,215
Dense Smoke Advisory	16
Freezing Fog Advisory	172
Tropical
Hurricane Warning	10
Inland Hurricane Warning	1
Inland Tropical Storm Warning	16
Tropical Storm Warning	57
Hurricane Watch	15
Inland Hurricane Watch	1
Inland Tropical Storm Watch	10
Tropical Storm Watch	30
Hurricane Local Statement	9
Coast and beach
Coastal Flood Warning	71
High Surf Warning	29
Lakeshore Flood Warning	3
Coastal Flood Watch	62
Coastal Flood Advisory	268
High Surf Advisory	300
Lakeshore Flood Advisory	1
Coastal Flood Statement	265
Lakeshore Flood Statement	6
Rip Current Statement	100
Marine
Gale Warning	2,642
Hazardous Seas Warning	95
Heavy Freezing Spray Warning	257
Hurricane Force Wind Warning	17
Special Marine Warning	3,738
Storm Warning	467
Gale Watch	492
Hazardous Seas Watch	66
Heavy Freezing Spray Watch	2
Storm Watch	47
Brisk Wind Advisory	285
Heavy Freezing Spray Advisory	3
Low Water Advisory	41
Marine Dense Fog Advisory	203
Small Craft Advisory	5,841
Small Craft Advisory for Hazardous Seas	668
Small Craft Advisory for Rough Bar	308
Small Craft Advisory for Winds	487
Marine Weather Statement	24
Other
AQ Advisory	1

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 2009 2011

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.