Weather alerts in the United States, November 2009

3,189 weather alerts in November 2009, 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: 3,189
Warnings: 1,254
Watches: 279
Advisories: 1,555
Busiest day: November 11, 2009278 alerts

Over time

By day

Days in UTC, the clock the archive keeps.

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	15
Mesoscale Discussion	11
Special Weather Statement	51
Flooding
Areal Flood Warning	70
Flash Flood Warning	60
River Flood Warning	263
Flash Flood Watch	14
Flood Watch	23
River Flood Watch	1
Areal Flood Advisory	178
River Flood Advisory	43
Winter
Blizzard Warning	9
Winter Storm Warning	41
Blizzard Watch	7
Winter Storm Watch	48
Freezing Rain Advisory	4
Lake Effect Snow Advisory	1
Winter Weather Advisory	115
Cold
Freeze Warning	48
Freeze Watch	21
Frost Advisory	52
Wind Chill Advisory	1
Wind and dust
Dust Storm Warning	1
High Wind Warning	53
High Wind Watch	39
Blowing Dust Advisory	1
Lake Wind Advisory	41
Wind Advisory	129
Fire
Red Flag Warning	37
Fire Weather Watch	26
Fog and smoke
Air Stagnation Advisory	1
Dense Fog Advisory	150
Dense Smoke Advisory	1
Freezing Fog Advisory	1
Tropical
Hurricane Warning	7
Inland Hurricane Warning	2
Inland Tropical Storm Warning	3
Tropical Storm Warning	7
Hurricane Watch	6
Inland Hurricane Watch	2
Inland Tropical Storm Watch	3
Tropical Storm Watch	1
Coast and beach
Coastal Flood Warning	14
High Surf Warning	6
Coastal Flood Watch	19
Coastal Flood Advisory	51
High Surf Advisory	46
Coastal Flood Statement	35
Marine
Gale Warning	330
Hazardous Seas Warning	12
Heavy Freezing Spray Warning	48
Hurricane Force Wind Warning	4
Special Marine Warning	125
Storm Warning	99
Gale Watch	52
Hazardous Seas Watch	11
Hurricane Force Wind Watch	1
Storm Watch	5
Brisk Wind Advisory	19
Low Water Advisory	1
Marine Dense Fog Advisory	4
Small Craft Advisory	569
Small Craft Advisory for Hazardous Seas	80
Small Craft Advisory for Rough Bar	21
Small Craft Advisory for Winds	46
Marine Weather Statement	4

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

Nearby

Alerts in force now The tornado archive The radar archive 2008 2010

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.