Weather alerts in Linn County, Missouri, 2010

233 weather alerts in 2010, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Linn County and its neighbors

Each county as a circle sized by its count in 2010. Tap one for its archive.

Alerts: 233
Warnings: 69
Watches: 48
Advisories: 43
Busiest month: June62 alerts
Busiest day: July 20, 201015 alerts

Over time

By month

Warning verification

How often warnings here had a storm report inside them, and how much warning the reports had.

4 of 5 tornado warnings covering Linn County in 2010 had a tornado report inside them; 1 of 1 tornado reports fell inside a warning, on average 8 minutes after it went out.

Linn County, 2010

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	5	4	20%	1	100%	8 min
Severe thunderstorm warnings	21	15	29%	3	67%	12 min
Flash flood warnings	4	4	0%	1	100%	160 min

Each office's whole area, 2010

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Kansas City, MO: tornado warnings	28	9	68%	22	59%	14 min
NWS Kansas City, MO: severe thunderstorm warnings	346	186	46%	467	79%	17 min
NWS Kansas City, MO: flash flood warnings	71	39	45%	105	83%	116 min

An office's figures cover every county it serves, including across state lines.

Verified by the Iowa Environmental Mesonet's Cow, which matches each storm-based warning with the local storm reports inside its polygon while it was in force, within 15 km of its edge: a tornado warning counts as verified on a tornado report, a severe thunderstorm warning on hail of 1 inch or more, a gust of 58 mph or more, or wind damage, a flash flood warning on a flash flood report. The false alarm ratio is the share of warnings with no such report; "inside a warning" is the probability of detection, the share of reports that fell inside one; lead time runs from the warning's issue to each report inside it, counting zero for a report that came first. A warning with no report is not proof nothing happened: reports come from spotters, the public and damage surveys, and are thin where few people live.

The alerts

Every alert, in the order issued. Times are local, Central Time. Each opens its own page with the text, the map, the radar and the sounding.

Issued	Product	Office	Lasted
Jan 1, 3:03 PM CST	Wind Chill Advisory	EAX	21 hr
Jan 3, 3:20 PM CST	Wind Chill Advisory	EAX	19 hr
Jan 4, 3:34 PM CST	Wind Chill Advisory	EAX	19 hr
Jan 5, 4:37 AM CST	Winter Storm Watch	EAX	10 hr
Jan 5, 2:36 PM CST	Winter Storm Warning	EAX	38 hr
Jan 7, 4:31 AM CST	Wind Chill Warning	EAX	43 hr
Jan 7, 4:31 AM CST	Winter Weather Advisory	EAX	16 hr
Jan 8, 9:24 PM CST	Wind Chill Advisory	EAX	13 hr
Jan 10, 3:32 AM CST	Wind Chill Advisory	EAX	6 hr
Jan 15, 3:06 PM CST	Freezing Fog Advisory	EAX	21 hr
Jan 16, 12:16 PM CST	Dense Fog Advisory	EAX	26 hr
Jan 17, 3:44 PM CST	Dense Fog Advisory	EAX	41 hr
Jan 20, 3:30 PM CST	Dense Fog Advisory	EAX	16 hr
Jan 21, 1:32 AM CST	River Flood Warning	EAX	6 days
Jan 23, 11:00 AM CST	River Flood Warning	EAX	59 hr
Jan 23, 8:53 PM CST	Dense Fog Advisory	EAX	5 hr
Feb 4, 4:04 AM CST	Winter Weather Advisory	EAX	38 hr
Feb 6, 4:15 AM CST	Winter Storm Watch	EAX	34 hr
Feb 7, 2:21 PM CST	Winter Weather Advisory	EAX	35 hr
Feb 12, 3:05 PM CST	Winter Weather Advisory	EAX	66 hr
Feb 19, 3:22 PM CST	Winter Storm Watch	EAX	26 hr
Feb 20, 3:37 AM CST	Winter Storm Warning	EAX	44 hr
Feb 21, 6:32 AM CST	Mesoscale Discussion	SPC	5 hr
Mar 8, 12:00 AM CST	River Flood Warning	EAX	9 days
Mar 9, 2:02 PM CST	River Flood Warning	EAX	5 days
Mar 11, 8:06 AM CST	Areal Flood Warning	EAX	12 hr
Mar 18, 4:02 AM CDT	Dense Fog Advisory	EAX	6 hr
Mar 19, 12:35 PM CDT	Winter Weather Advisory	EAX	42 hr
Mar 24, 10:11 PM CDT	River Flood Warning	EAX	47 hr
Mar 24, 10:11 PM CDT	River Flood Warning	EAX	71 hr
Apr 2, 8:28 AM CDT	Mesoscale Discussion	SPC	92 min
Apr 2, 10:25 AM CDT	Severe Thunderstorm Watch	SPC	3 hr
Apr 2, 10:52 AM CDT	Severe Thunderstorm Warning	EAX	23 min
Apr 4, 2:22 PM CDT	Mesoscale Discussion	SPC	113 min
Apr 4, 3:34 PM CDT	Tornado Watch	SPC	8 hr
Apr 4, 5:53 PM CDT	Special Weather Statement	EAX	37 min
Apr 4, 6:23 PM CDT	Mesoscale Discussion	SPC	67 min
Apr 5, 11:11 AM CDT	Mesoscale Discussion	SPC	64 min
Apr 5, 4:04 PM CDT	Mesoscale Discussion	SPC	56 min
Apr 6, 2:08 PM CDT	Severe Thunderstorm Watch	SPC	8 hr
Apr 6, 8:51 PM CDT	Special Weather Statement	EAX	24 min
Apr 6, 9:28 PM CDT	Severe Thunderstorm Warning	EAX	32 min
Apr 8, 3:56 AM CDT	Frost Advisory	EAX	29 hr
Apr 23, 7:06 PM CDT	Tornado Watch	SPC	5 hr
Apr 24, 4:30 AM CDT	Severe Thunderstorm Warning	EAX	30 min
Apr 24, 11:06 AM CDT	Flood Watch	EAX	13 hr
Apr 24, 8:37 PM CDT	River Flood Warning	EAX	68 hr
Apr 24, 8:37 PM CDT	River Flood Warning	EAX	5 days
Apr 30, 9:18 AM CDT	Mesoscale Discussion	SPC	57 min
Apr 30, 10:20 AM CDT	Severe Thunderstorm Watch	SPC	5 hr
Apr 30, 10:48 AM CDT	Severe Thunderstorm Warning	EAX	27 min
Apr 30, 1:22 PM CDT	Mesoscale Discussion	SPC	53 min
May 6, 9:11 PM CDT	Mesoscale Discussion	SPC	34 min
May 7, 2:31 AM CDT	Mesoscale Discussion	SPC	59 min
May 7, 3:53 AM CDT	Mesoscale Discussion	SPC	37 min
May 7, 4:09 AM CDT	Special Weather Statement	EAX	36 min
May 8, 4:14 AM CDT	Frost Advisory	EAX	27 hr
May 8, 12:35 PM CDT	River Flood Warning	EAX	13 hr
May 10, 2:49 PM CDT	Flood Watch	EAX	13 hr
May 11, 3:05 AM CDT	River Flood Warning	EAX	6 days
May 11, 4:09 AM CDT	River Flood Warning	EAX	13 days
May 11, 7:46 AM CDT	Areal Flood Warning	EAX	56 hr
May 12, 4:00 AM CDT	Flash Flood Watch	EAX	25 hr
May 12, 5:14 PM CDT	Mesoscale Discussion	SPC	91 min
May 12, 6:33 PM CDT	Areal Flood Advisory	EAX	3 hr
May 12, 8:00 PM CDT	Mesoscale Discussion	SPC	90 min
May 12, 8:23 PM CDT	Severe Thunderstorm Watch	SPC	4 hr
May 12, 8:28 PM CDT	Flash Flood Warning	EAX	9 hr
May 12, 9:52 PM CDT	Special Weather Statement	EAX	38 min
May 12, 11:24 PM CDT	Mesoscale Discussion	SPC	96 min
May 12, 11:58 PM CDT	Severe Thunderstorm Watch	SPC	5 hr
May 13, 3:27 PM CDT	Areal Flood Warning	EAX	24 hr
May 14, 3:24 PM CDT	Areal Flood Warning	EAX	24 hr
May 21, 7:17 AM CDT	River Flood Warning	EAX	34 hr
May 25, 11:26 AM CDT	Mesoscale Discussion	SPC	64 min
May 25, 12:16 PM CDT	Special Weather Statement	EAX	44 min
May 25, 12:23 PM CDT	Areal Flood Advisory	EAX	7 hr
May 25, 12:44 PM CDT	Special Weather Statement	EAX	46 min
May 25, 5:46 PM CDT	Special Weather Statement	EAX	29 min
May 25, 6:14 PM CDT	Areal Flood Advisory	EAX	3 hr
Jun 1, 5:39 PM CDT	Mesoscale Discussion	SPC	96 min
Jun 1, 6:25 PM CDT	Severe Thunderstorm Watch	SPC	8 hr
Jun 1, 9:17 PM CDT	Mesoscale Discussion	SPC	118 min
Jun 1, 10:05 PM CDT	Special Weather Statement	EAX	40 min
Jun 1, 10:41 PM CDT	Severe Thunderstorm Warning	EAX	49 min
Jun 1, 11:06 PM CDT	Severe Thunderstorm Warning	EAX	39 min
Jun 1, 11:41 PM CDT	Severe Thunderstorm Warning	EAX	34 min
Jun 2, 4:29 AM CDT	Flash Flood Warning	EAX	5 hr
Jun 2, 9:10 AM CDT	Areal Flood Warning	EAX	24 hr
Jun 2, 9:22 AM CDT	River Flood Warning	EAX	27 hr
Jun 2, 9:22 AM CDT	River Flood Warning	EAX	20 days
Jun 4, 1:43 PM CDT	Mesoscale Discussion	SPC	2 hr
Jun 4, 3:54 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 4, 5:57 PM CDT	Severe Thunderstorm Warning	EAX	33 min
Jun 4, 6:07 PM CDT	Severe Thunderstorm Warning	EAX	38 min
Jun 4, 6:16 PM CDT	Tornado Warning	EAX	29 min
Jun 4, 7:36 PM CDT	Mesoscale Discussion	SPC	54 min
Jun 4, 10:27 PM CDT	Mesoscale Discussion	SPC	33 min
Jun 4, 10:58 PM CDT	Severe Thunderstorm Watch	SPC	5 hr
Jun 5, 12:54 AM CDT	Severe Thunderstorm Warning	EAX	51 min
Jun 5, 1:19 AM CDT	Mesoscale Discussion	SPC	3 hr
Jun 5, 1:45 AM CDT	Special Weather Statement	EAX	30 min
Jun 5, 2:29 AM CDT	Mesoscale Discussion	SPC	2 hr
Jun 5, 9:08 AM CDT	River Flood Warning	EAX	6 days
Jun 5, 3:50 PM CDT	Tornado Watch	SPC	7 hr
Jun 5, 8:25 PM CDT	Severe Thunderstorm Warning	EAX	35 min
Jun 5, 9:23 PM CDT	Areal Flood Warning	EAX	19 hr
Jun 6, 4:01 PM CDT	Flash Flood Watch	EAX	47 hr
Jun 8, 2:39 PM CDT	Tornado Watch	SPC	8 hr
Jun 12, 12:33 PM CDT	River Flood Warning	EAX	6 days
Jun 12, 12:48 PM CDT	Areal Flood Advisory	EAX	2 hr
Jun 12, 3:39 PM CDT	Flash Flood Watch	EAX	42 hr
Jun 13, 12:47 PM CDT	Severe Thunderstorm Watch	SPC	5 hr
Jun 14, 1:31 AM CDT	Mesoscale Discussion	SPC	119 min
Jun 17, 2:38 PM CDT	Flash Flood Watch	EAX	13 hr
Jun 18, 10:41 AM CDT	Mesoscale Discussion	SPC	2 hr
Jun 18, 10:46 PM CDT	Mesoscale Discussion	SPC	89 min
Jun 18, 11:38 PM CDT	Severe Thunderstorm Watch	SPC	5 hr
Jun 19, 8:02 AM CDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 19, 12:21 PM CDT	Severe Thunderstorm Warning	EAX	39 min
Jun 19, 1:01 PM CDT	Severe Thunderstorm Warning	EAX	29 min
Jun 19, 1:22 PM CDT	Severe Thunderstorm Warning	EAX	23 min
Jun 19, 11:13 PM CDT	Mesoscale Discussion	SPC	92 min
Jun 20, 11:00 PM CDT	Mesoscale Discussion	SPC	90 min
Jun 21, 7:39 AM CDT	Mesoscale Discussion	SPC	96 min
Jun 21, 12:28 PM CDT	Mesoscale Discussion	SPC	62 min
Jun 21, 12:58 PM CDT	Severe Thunderstorm Watch	SPC	4 hr
Jun 21, 4:10 PM CDT	Mesoscale Discussion	SPC	35 min
Jun 21, 4:36 PM CDT	Tornado Watch	SPC	5 hr
Jun 21, 5:56 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 22, 4:17 AM CDT	Heat Advisory	EAX	38 hr
Jun 23, 2:12 PM CDT	Mesoscale Discussion	SPC	93 min
Jun 23, 2:44 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 23, 4:52 PM CDT	Areal Flood Advisory	EAX	4 hr
Jun 23, 4:54 PM CDT	Special Weather Statement	EAX	36 min
Jun 23, 6:29 PM CDT	Mesoscale Discussion	SPC	2 hr
Jun 23, 6:30 PM CDT	Areal Flood Advisory	EAX	3 hr
Jun 27, 5:58 AM CDT	Mesoscale Discussion	SPC	92 min
Jun 27, 2:21 PM CDT	Special Weather Statement	EAX	39 min
Jun 27, 3:18 PM CDT	Mesoscale Discussion	SPC	57 min
Jun 27, 3:46 PM CDT	Severe Thunderstorm Warning	EAX	29 min
Jun 27, 4:26 PM CDT	Areal Flood Advisory	EAX	6 hr
Jul 3, 3:44 PM CDT	Flood Watch	EAX	63 hr
Jul 7, 5:15 PM CDT	Flash Flood Warning	EAX	3 hr
Jul 7, 7:27 PM CDT	River Flood Warning	EAX	20 hr
Jul 13, 1:33 PM CDT	Heat Advisory	EAX	46 hr
Jul 14, 7:37 PM CDT	Mesoscale Discussion	SPC	83 min
Jul 15, 12:06 AM CDT	Severe Thunderstorm Warning	EAX	24 min
Jul 15, 12:44 AM CDT	Special Weather Statement	EAX	46 min
Jul 16, 3:27 PM CDT	Heat Advisory	EAX	48 hr
Jul 16, 5:11 PM CDT	Special Weather Statement	EAX	49 min
Jul 18, 3:05 AM CDT	Severe Thunderstorm Watch	SPC	5 hr
Jul 18, 4:39 AM CDT	Severe Thunderstorm Warning	EAX	51 min
Jul 18, 4:58 AM CDT	Mesoscale Discussion	SPC	62 min
Jul 18, 5:27 AM CDT	Severe Thunderstorm Warning	EAX	48 min
Jul 19, 2:09 PM CDT	Mesoscale Discussion	SPC	2 hr
Jul 19, 7:44 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Jul 19, 9:57 PM CDT	Tornado Warning	EAX	33 min
Jul 19, 10:29 PM CDT	Tornado Warning	EAX	46 min
Jul 19, 11:08 PM CDT	Tornado Warning	EAX	37 min
Jul 19, 11:53 PM CDT	Tornado Warning	EAX	37 min
Jul 20, 1:09 AM CDT	Mesoscale Discussion	SPC	36 min
Jul 20, 1:36 AM CDT	Severe Thunderstorm Watch	SPC	6 hr
Jul 20, 3:59 AM CDT	Flash Flood Watch	EAX	26 hr
Jul 20, 4:13 AM CDT	Mesoscale Discussion	SPC	62 min
Jul 20, 4:49 AM CDT	Severe Thunderstorm Warning	EAX	41 min
Jul 20, 5:27 AM CDT	Special Weather Statement	EAX	33 min
Jul 20, 5:46 AM CDT	Mesoscale Discussion	SPC	89 min
Jul 20, 5:57 AM CDT	Special Weather Statement	EAX	48 min
Jul 20, 10:05 AM CDT	Areal Flood Warning	EAX	47 hr
Jul 20, 3:32 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Jul 21, 4:19 AM CDT	Heat Advisory	EAX	4 days
Jul 21, 11:09 AM CDT	River Flood Warning	EAX	17 hr
Jul 24, 2:22 PM CDT	Mesoscale Discussion	SPC	83 min
Jul 24, 3:32 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Jul 24, 4:26 PM CDT	Areal Flood Advisory	EAX	5 hr
Jul 28, 8:57 PM CDT	Areal Flood Advisory	EAX	3 hr
Jul 30, 12:45 PM CDT	Mesoscale Discussion	SPC	60 min
Aug 1, 2:42 PM CDT	Heat Advisory	EAX	3 days
Aug 6, 3:47 AM CDT	Excessive Heat Watch	EAX	60 hr
Aug 6, 3:47 AM CDT	Excessive Heat Warning	EAX	9 days
Aug 13, 10:36 AM CDT	Mesoscale Discussion	SPC	84 min
Aug 13, 2:14 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Aug 13, 3:28 PM CDT	Severe Thunderstorm Watch	SPC	8 hr
Aug 13, 7:27 PM CDT	Severe Thunderstorm Warning	EAX	48 min
Aug 13, 8:39 PM CDT	Severe Thunderstorm Warning	EAX	51 min
Aug 20, 11:29 AM CDT	Mesoscale Discussion	SPC	91 min
Aug 20, 1:58 PM CDT	Severe Thunderstorm Watch	SPC	8 hr
Aug 20, 3:38 PM CDT	Special Weather Statement	EAX	37 min
Aug 20, 5:20 PM CDT	Mesoscale Discussion	SPC	85 min
Aug 21, 9:57 PM CDT	Dense Fog Advisory	EAX	11 hr
Aug 31, 9:46 PM CDT	Mesoscale Discussion	SPC	59 min
Sep 13, 8:10 PM CDT	Severe Thunderstorm Watch	SPC	109 min
Sep 13, 9:03 PM CDT	Special Weather Statement	EAX	42 min
Sep 15, 3:54 AM CDT	Flash Flood Watch	EAX	18 hr
Sep 18, 1:15 PM CDT	Mesoscale Discussion	SPC	2 hr
Sep 18, 9:25 PM CDT	Severe Thunderstorm Watch	SPC	8 hr
Sep 19, 3:24 AM CDT	Mesoscale Discussion	SPC	66 min
Sep 19, 4:00 AM CDT	Severe Thunderstorm Watch	SPC	6 hr
Sep 19, 5:01 AM CDT	Flash Flood Warning	EAX	7 hr
Sep 19, 5:46 AM CDT	Special Weather Statement	EAX	29 min
Sep 19, 6:14 AM CDT	Mesoscale Discussion	SPC	61 min
Sep 19, 8:52 AM CDT	River Flood Warning	EAX	45 hr
Sep 19, 8:52 AM CDT	River Flood Warning	EAX	10 days
Sep 19, 11:51 AM CDT	Areal Flood Warning	EAX	24 hr
Sep 21, 3:54 AM CDT	Flash Flood Watch	EAX	24 hr
Sep 21, 1:54 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Sep 21, 5:59 PM CDT	Mesoscale Discussion	SPC	91 min
Sep 21, 7:52 PM CDT	Mesoscale Discussion	SPC	53 min
Sep 21, 8:26 PM CDT	River Flood Warning	EAX	4 days
Sep 22, 2:30 AM CDT	Areal Flood Warning	EAX	14 hr
Sep 22, 10:46 AM CDT	Areal Flood Warning	EAX	6 hr
Sep 22, 4:05 PM CDT	Areal Flood Warning	EAX	23 hr
Sep 23, 4:16 AM CDT	Flash Flood Watch	EAX	19 hr
Sep 23, 8:59 PM CDT	Areal Flood Advisory	EAX	6 hr
Oct 2, 3:33 AM CDT	Frost Advisory	EAX	29 hr
Oct 3, 2:35 PM CDT	Frost Advisory	EAX	18 hr
Oct 23, 2:12 PM CDT	Mesoscale Discussion	SPC	93 min
Oct 23, 3:22 PM CDT	Tornado Watch	SPC	3 hr
Oct 23, 6:23 PM CDT	Mesoscale Discussion	SPC	67 min
Oct 25, 3:52 PM CDT	Wind Advisory	EAX	27 hr
Oct 25, 9:36 PM CDT	Mesoscale Discussion	SPC	24 min
Oct 25, 10:03 PM CDT	Tornado Watch	SPC	9 hr
Oct 27, 3:21 AM CDT	Red Flag Warning	EAX	16 hr
Oct 28, 3:42 AM CDT	Freeze Warning	EAX	29 hr
Nov 6, 3:15 PM CDT	Red Flag Warning	EAX	28 hr
Nov 22, 10:50 AM CST	Mesoscale Discussion	SPC	85 min
Dec 10, 8:58 PM CST	Wind Advisory	EAX	39 hr
Dec 11, 4:11 AM CST	Winter Weather Advisory	EAX	24 hr
Dec 11, 3:09 PM CST	Wind Chill Advisory	EAX	18 hr
Dec 12, 4:32 AM CST	Wind Chill Advisory	EAX	28 hr
Dec 23, 10:41 AM CST	Winter Weather Advisory	EAX	37 hr
Dec 26, 11:26 PM CST	Dense Fog Advisory	EAX	10 hr

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	21
Tornado Warning	5
Severe Thunderstorm Watch	26
Tornado Watch	7
Mesoscale Discussion	55
Special Weather Statement	18
Flooding
Areal Flood Warning	11
Flash Flood Warning	4
River Flood Warning	21
Flash Flood Watch	8
Flood Watch	3
Areal Flood Advisory	10
Winter
Winter Storm Warning	2
Winter Storm Watch	3
Winter Weather Advisory	7
Heat
Excessive Heat Warning	1
Excessive Heat Watch	1
Heat Advisory	5
Cold
Freeze Warning	1
Wind Chill Warning	1
Frost Advisory	4
Wind Chill Advisory	7
Wind and dust
Wind Advisory	2
Fire
Red Flag Warning	2
Fog and smoke
Dense Fog Advisory	7
Freezing Fog Advisory	1

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast 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. Warning verification from the Mesonet's Cow. Rebuilt daily.