Weather alerts in the United States, December 2012

5,517 weather alerts in December 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: 5,517
Warnings: 1,937
Watches: 429
Advisories: 2,207
Busiest day: December 20, 2012520 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	377
Tornado Warning	184
Severe Thunderstorm Watch	9
Tornado Watch	14
Mesoscale Discussion	124
Special Weather Statement	787
Flooding
Areal Flood Warning	30
Flash Flood Warning	23
River Flood Warning	77
Flash Flood Watch	6
Flood Watch	7
River Flood Watch	18
Areal Flood Advisory	111
River Flood Advisory	11
Winter
Blizzard Warning	50
Ice Storm Warning	4
Lake Effect Snow Warning	1
Winter Storm Warning	179
Blizzard Watch	14
Lake Effect Snow Watch	1
Winter Storm Watch	138
Freezing Rain Advisory	34
Lake Effect Snow Advisory	9
Winter Weather Advisory	447
Cold
Freeze Warning	52
Hard Freeze Warning	7
Wind Chill Warning	2
Freeze Watch	16
Hard Freeze Watch	1
Frost Advisory	21
Wind Chill Advisory	61
Wind and dust
Dust Storm Warning	1
High Wind Warning	110
High Wind Watch	72
Blowing Dust Advisory	6
Lake Wind Advisory	28
Wind Advisory	253
Fire
Red Flag Warning	50
Fire Weather Watch	35
Fog and smoke
Dense Fog Advisory	274
Dense Smoke Advisory	2
Freezing Fog Advisory	10
Coast and beach
Coastal Flood Warning	8
High Surf Warning	8
Lakeshore Flood Warning	2
Coastal Flood Watch	4
Coastal Flood Advisory	43
High Surf Advisory	40
Beach Hazards Statement	2
Coastal Flood Statement	24
Rip Current Statement	6
Marine
Gale Warning	371
Hazardous Seas Warning	13
Heavy Freezing Spray Warning	66
Hurricane Force Wind Warning	2
Special Marine Warning	231
Storm Warning	89
Gale Watch	72
Hazardous Seas Watch	6
Storm Watch	16
Brisk Wind Advisory	55
Low Water Advisory	11
Marine Dense Fog Advisory	51
Small Craft Advisory	603
Small Craft Advisory for Hazardous Seas	63
Small Craft Advisory for Rough Bar	27
Small Craft Advisory for Winds	47
Marine Weather Statement	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

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.