Weather alerts in the United States, December 2010

5,130 weather alerts in December 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: 5,130
Warnings: 1,836
Watches: 618
Advisories: 2,276
Busiest day: December 1, 2010460 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	181
Tornado Warning	101
Severe Thunderstorm Watch	2
Tornado Watch	13
Mesoscale Discussion	70
Special Weather Statement	310
Flooding
Areal Flood Warning	53
Flash Flood Warning	89
River Flood Warning	165
Flash Flood Watch	14
Flood Watch	14
River Flood Watch	5
Areal Flood Advisory	244
River Flood Advisory	23
Winter
Blizzard Warning	53
Ice Storm Warning	2
Lake Effect Snow Warning	28
Winter Storm Warning	202
Blizzard Watch	14
Lake Effect Snow Watch	9
Winter Storm Watch	179
Freezing Rain Advisory	43
Lake Effect Snow Advisory	53
Winter Weather Advisory	542
Cold
Freeze Warning	78
Hard Freeze Warning	61
Wind Chill Warning	12
Freeze Watch	55
Hard Freeze Watch	38
Wind Chill Watch	6
Frost Advisory	6
Wind Chill Advisory	122
Wind and dust
High Wind Warning	62
High Wind Watch	44
Lake Wind Advisory	41
Wind Advisory	198
Fire
Red Flag Warning	137
Fire Weather Watch	116
Fog and smoke
Air Stagnation Advisory	1
Dense Fog Advisory	142
Dense Smoke Advisory	2
Freezing Fog Advisory	37
Coast and beach
Coastal Flood Warning	5
Lakeshore Flood Warning	1
Coastal Flood Watch	5
Coastal Flood Advisory	17
High Surf Advisory	18
Lakeshore Flood Advisory	1
Coastal Flood Statement	15
Lakeshore Flood Statement	2
Rip Current Statement	3
Marine
Gale Warning	341
Hazardous Seas Warning	9
Heavy Freezing Spray Warning	66
Special Marine Warning	138
Storm Warning	52
Gale Watch	82
Hazardous Seas Watch	6
Heavy Freezing Spray Watch	1
Storm Watch	15
Brisk Wind Advisory	40
Low Water Advisory	4
Marine Dense Fog Advisory	12
Small Craft Advisory	585
Small Craft Advisory for Hazardous Seas	57
Small Craft Advisory for Rough Bar	33
Small Craft Advisory for Winds	55

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 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.