Weather alerts in the United States, March 2012

9,957 weather alerts in March 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: 9,957
Warnings: 4,319
Watches: 627
Advisories: 2,232
Busiest day: March 2, 2012843 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	1,789
Tornado Warning	509
Severe Thunderstorm Watch	38
Tornado Watch	35
Mesoscale Discussion	211
Special Weather Statement	2,550
Flooding
Areal Flood Warning	142
Flash Flood Warning	280
River Flood Warning	383
Flash Flood Watch	28
Flood Watch	27
River Flood Watch	40
Areal Flood Advisory	473
River Flood Advisory	56
Winter
Blizzard Warning	15
Lake Effect Snow Warning	1
Winter Storm Warning	77
Blizzard Watch	9
Winter Storm Watch	60
Freezing Rain Advisory	7
Lake Effect Snow Advisory	6
Winter Weather Advisory	192
Cold
Freeze Warning	50
Wind Chill Warning	8
Freeze Watch	22
Frost Advisory	37
Wind Chill Advisory	18
Wind and dust
Dust Storm Warning	2
High Wind Warning	98
High Wind Watch	76
Blowing Dust Advisory	8
Lake Wind Advisory	67
Wind Advisory	368
Fire
Red Flag Warning	284
Fire Weather Watch	209
Fog and smoke
Dense Fog Advisory	200
Dense Smoke Advisory	4
Freezing Fog Advisory	1
Coast and beach
Coastal Flood Warning	1
High Surf Warning	6
Lakeshore Flood Warning	1
Coastal Flood Watch	1
Lakeshore Flood Watch	1
Coastal Flood Advisory	8
High Surf Advisory	25
Lakeshore Flood Advisory	1
Coastal Flood Statement	4
Rip Current Statement	14
Marine
Gale Warning	244
Hazardous Seas Warning	14
Heavy Freezing Spray Warning	57
Hurricane Force Wind Warning	4
Special Marine Warning	323
Storm Warning	31
Gale Watch	65
Hazardous Seas Watch	6
Storm Watch	10
Brisk Wind Advisory	50
Low Water Advisory	8
Marine Dense Fog Advisory	68
Marine Dense Smoke Advisory	1
Small Craft Advisory	495
Small Craft Advisory for Hazardous Seas	66
Small Craft Advisory for Rough Bar	19
Small Craft Advisory for Winds	54

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.