Weather alerts in O'Brien County, Iowa

3,101 weather alerts since 1986, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

O'Brien County and its neighbors

Each county as a circle sized by its count since 1986. Tap one for its archive.

Alerts: 3,101
Warnings: 847
Watches: 592
Advisories: 900
Busiest year: 2010200 alerts
Average year: 76over 41 years on file

Over time

By year

Before late 2005 the archive holds only tornado, severe thunderstorm, flash flood and marine warnings, and from 1997 SPC's watches, so the jump that year is the archive widening, not the weather.

By month of the year

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	439
Tornado Warning	64
Severe Thunderstorm Watch	271
Tornado Watch	121
Mesoscale Discussion	762
Flooding
Areal Flood Warning	25
Flash Flood Warning	65
River Flood Warning	44
Flash Flood Watch	53
Flood Watch	19
River Flood Watch	1
Winter
Blizzard Warning	27
Heavy Snow Warning	2
Ice Storm Warning	5
Winter Storm Warning	38
Blizzard Watch	10
Winter Storm Watch	63
Blowing Snow Advisory	1
Freezing Rain Advisory	6
Snow Advisory	19
Snow and Blowing Snow Advisory	1
Winter Weather Advisory	199
Heat
Excessive Heat Warning	12
Extreme Heat Warning	5
Excessive Heat Watch	6
Extreme Heat Watch	2
Heat Advisory	67
Cold
Extreme Cold Warning	3
Freeze Warning	29
Wind Chill Warning	16
Extreme Cold Watch	2
Freeze Watch	6
Wind Chill Watch	4
Cold Weather Advisory	13
Frost Advisory	35
Wind Chill Advisory	121
Wind and dust
High Wind Warning	25
High Wind Watch	9
Wind Advisory	236
Fire
Red Flag Warning	48
Fire Weather Watch	25
Fog and smoke
Air Stagnation Advisory	2
Dense Fog Advisory	198
Freezing Fog Advisory	2

The latest warnings

The most recent on file, newest first.

Issued	Product	Office	Lasted
Sep 1, 10:34 PM CDT	Severe Thunderstorm Warning Considerable damage threat	FSD	71 min
Sep 1, 10:04 PM CDT	Tornado Warning	FSD	26 min
Sep 1, 10:02 PM CDT	Severe Thunderstorm Warning Considerable damage threat	FSD	43 min
Aug 29, 5:08 AM CDT	Severe Thunderstorm Warning	FSD	8 min
Aug 9, 2:49 AM CDT	Severe Thunderstorm Warning	FSD	38 min
Jul 25, 9:53 PM CDT	Severe Thunderstorm Warning	FSD	37 min
Jul 25, 9:49 PM CDT	Severe Thunderstorm Warning Considerable damage threat	FSD	41 min
Jul 25, 9:26 PM CDT	Severe Thunderstorm Warning Considerable damage threat	FSD	34 min
Jul 25, 9:09 PM CDT	Severe Thunderstorm Warning Considerable damage threat	FSD	51 min
Jul 24, 11:24 PM CDT	Extreme Heat Warning	FSD	46 hr
Jul 2, 8:48 AM CDT	Severe Thunderstorm Warning	FSD	42 min
Jul 1, 3:06 AM CDT	Severe Thunderstorm Warning	FSD	39 min

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive

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.