Weather alerts in the United States, 2007

57,984 weather alerts in 2007, 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: 57,984
Warnings: 38,178
Watches: 4,258
Advisories: 10,354
Busiest month: June9,114 alerts
Busiest day: May 6, 2007582 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	21,141
Tornado Warning	2,660
Severe Thunderstorm Watch	456
Tornado Watch	295
Mesoscale Discussion	2,276
Special Weather Statement	1,734
Flooding
Areal Flood Warning	101
Flash Flood Warning	4,394
River Flood Warning	877
Flash Flood Watch	540
Flood Watch	277
River Flood Watch	63
Areal Flood Advisory	558
River Flood Advisory	118
Hydrologic Statement	1
River Flood Statement	1
Winter
Blizzard Warning	109
Heavy Snow Warning	292
Ice Storm Warning	86
Lake Effect Snow Warning	104
Winter Storm Warning	524
Blizzard Watch	40
Lake Effect Snow Watch	71
Winter Storm Watch	698
Blowing Snow Advisory	126
Freezing Rain Advisory	229
Lake Effect Snow Advisory	191
Lake Effect Snow and Blowing Snow Advisory	25
Snow Advisory	1,189
Snow and Blowing Snow Advisory	298
Winter Weather Advisory	679
Heat
Excessive Heat Warning	76
Excessive Heat Watch	46
Heat Advisory	246
Cold
Freeze Warning	546
Hard Freeze Warning	14
Wind Chill Warning	48
Freeze Watch	237
Hard Freeze Watch	1
Wind Chill Watch	9
Frost Advisory	422
Wind Chill Advisory	356
Wind and dust
Dust Storm Warning	28
High Wind Warning	482
High Wind Watch	353
Blowing Dust Advisory	6
Lake Wind Advisory	504
Wind Advisory	1,662
Fire
Red Flag Warning	1,566
Fire Weather Watch	1,125
Fog and smoke
Air Stagnation Advisory	80
Ashfall Advisory	1
Dense Fog Advisory	1,082
Dense Smoke Advisory	42
Freezing Fog Advisory	63
Tropical
Hurricane Warning	1
Inland Hurricane Warning	1
Inland Tropical Storm Warning	9
Tropical Storm Warning	7
Inland Tropical Storm Watch	2
Tropical Storm Watch	7
Coast and beach
Coastal Flood Warning	49
High Surf Warning	22
Lakeshore Flood Warning	1
Coastal Flood Watch	37
Lakeshore Flood Watch	1
Coastal Flood Advisory	126
High Surf Advisory	188
Coastal Flood Statement	182
Lakeshore Flood Statement	5
Marine
Gale Warning	1,312
Heavy Freezing Spray Warning	271
Hurricane Force Wind Warning	13
Special Marine Warning	3,172
Storm Warning	272
Brisk Wind Advisory	199
Low Water Advisory	30
Small Craft Advisory	1,934
Marine Weather Statement	995

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 2006 2008

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.