Weather alerts in Johnson County, Iowa, 2009

174 weather alerts in 2009, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Johnson County and its neighbors

Each county as a circle sized by its count in 2009. Tap one for its archive.

Alerts: 174
Warnings: 59
Watches: 28
Advisories: 34
Busiest month: June45 alerts
Busiest day: June 19, 20099 alerts

Over time

By month

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 3, 3:24 AM CST	Winter Weather Advisory	DVN	26 hr
Jan 8, 3:11 PM CST	Winter Weather Advisory	DVN	48 hr
Jan 10, 3:04 AM CST	Winter Storm Warning	DVN	9 hr
Jan 11, 3:24 PM CST	Winter Storm Watch	DVN	12 hr
Jan 12, 3:24 AM CST	Blizzard Watch	DVN	10 hr
Jan 12, 3:24 AM CST	Winter Weather Advisory	DVN	23 hr
Jan 12, 1:06 PM CST	Blizzard Warning	DVN	11 hr
Jan 12, 6:27 PM CST	Mesoscale Discussion	SPC	4 hr
Jan 13, 2:45 AM CST	Wind Chill Advisory	DVN	12 hr
Jan 13, 3:15 AM CST	Winter Weather Advisory	DVN	36 hr
Jan 13, 6:12 PM CST	Mesoscale Discussion	SPC	4 hr
Jan 13, 11:38 PM CST	Mesoscale Discussion	SPC	4 hr
Jan 14, 3:45 AM CST	Wind Chill Warning	DVN	56 hr
Jan 17, 4:48 PM CST	Winter Weather Advisory	DVN	7 hr
Jan 23, 4:04 AM CST	Wind Chill Advisory	DVN	32 hr
Feb 2, 3:16 PM CST	Wind Chill Advisory	DVN	19 hr
Feb 7, 7:56 PM CST	River Flood Warning	DVN	13 hr
Feb 8, 3:21 AM CST	River Flood Warning	DVN	9 days
Feb 10, 9:49 AM CST	River Flood Warning	DVN	56 hr
Feb 20, 4:17 AM CST	Winter Weather Advisory	DVN	35 hr
Feb 26, 9:26 AM CST	Mesoscale Discussion	SPC	2 hr
Mar 6, 11:21 AM CST	Flash Flood Watch	DVN	51 hr
Mar 7, 9:04 PM CST	River Flood Warning	DVN	8 days
Mar 8, 3:50 AM CDT	River Flood Warning	DVN	5 days
Mar 8, 5:29 AM CDT	River Flood Warning	DVN	4 days
Mar 8, 5:38 AM CDT	Areal Flood Warning	DVN	15 hr
Mar 9, 4:19 AM CDT	Flash Flood Watch	DVN	32 hr
Mar 9, 11:45 PM CDT	Areal Flood Warning	DVN	12 hr
Mar 10, 4:22 AM CDT	Wind Advisory	DVN	27 hr
Mar 10, 9:25 AM CDT	Dense Fog Advisory	DVN	4 hr
Mar 23, 3:39 PM CDT	Wind Advisory	DVN	4 hr
Mar 28, 3:33 AM CDT	Winter Storm Warning	DVN	24 hr
Mar 28, 3:33 AM CDT	Winter Weather Advisory	DVN	24 hr
Apr 4, 4:00 AM CDT	Winter Storm Watch	DVN	12 hr
Apr 4, 3:43 PM CDT	Winter Weather Advisory	DVN	28 hr
Apr 21, 11:03 AM CDT	Wind Advisory	DVN	8 hr
Apr 23, 11:42 PM CDT	Dense Fog Advisory	DVN	8 hr
Apr 25, 5:32 PM CDT	Mesoscale Discussion	SPC	73 min
Apr 26, 2:20 AM CDT	Special Weather Statement	DVN	3 hr
Apr 26, 3:04 AM CDT	Flash Flood Watch	DVN	24 hr
Apr 26, 10:52 AM CDT	River Flood Warning	DVN	12 days
Apr 26, 4:14 PM CDT	Special Weather Statement	DVN	61 min
Apr 26, 6:14 PM CDT	Mesoscale Discussion	SPC	61 min
Apr 26, 8:21 PM CDT	Mesoscale Discussion	SPC	54 min
Apr 26, 11:01 PM CDT	Special Weather Statement	DVN	119 min
Apr 26, 11:15 PM CDT	Mesoscale Discussion	SPC	60 min
May 8, 1:05 PM CDT	Mesoscale Discussion	SPC	85 min
May 8, 4:58 PM CDT	Special Weather Statement	DVN	77 min
May 8, 5:23 PM CDT	Special Weather Statement	DVN	52 min
May 8, 5:47 PM CDT	Mesoscale Discussion	SPC	58 min
May 8, 5:57 PM CDT	Severe Thunderstorm Warning	DVN	63 min
May 8, 6:10 PM CDT	Severe Thunderstorm Watch	SPC	4 hr
May 13, 5:47 PM CDT	Mesoscale Discussion	SPC	88 min
May 13, 6:19 PM CDT	Special Weather Statement	DVN	86 min
May 13, 8:07 PM CDT	River Flood Warning	DVN	3 days
May 14, 3:19 PM CDT	Flash Flood Watch	DVN	31 hr
May 15, 10:10 AM CDT	River Flood Warning	DVN	11 hr
May 15, 10:10 AM CDT	River Flood Warning	DVN	48 hr
May 16, 3:53 AM CDT	Frost Advisory	DVN	28 hr
May 27, 8:41 PM CDT	River Flood Warning	DVN	7 days
Jun 1, 3:29 PM CDT	Severe Thunderstorm Watch	SPC	8 hr
Jun 7, 4:45 AM CDT	Mesoscale Discussion	SPC	30 min
Jun 7, 8:49 PM CDT	Mesoscale Discussion	SPC	56 min
Jun 17, 4:30 AM CDT	Dense Fog Advisory	DVN	4 hr
Jun 17, 11:53 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Jun 18, 3:20 AM CDT	Mesoscale Discussion	SPC	85 min
Jun 18, 9:39 AM CDT	River Flood Warning	DVN	9 days
Jun 18, 9:39 AM CDT	River Flood Warning	DVN	17 hr
Jun 18, 9:42 AM CDT	Mesoscale Discussion	SPC	93 min
Jun 18, 10:11 AM CDT	Severe Thunderstorm Watch	SPC	6 hr
Jun 18, 1:17 PM CDT	Mesoscale Discussion	SPC	88 min
Jun 19, 6:58 AM CDT	Mesoscale Discussion	SPC	62 min
Jun 19, 7:00 AM CDT	Severe Thunderstorm Warning	DVN	60 min
Jun 19, 7:14 AM CDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 19, 12:37 PM CDT	Mesoscale Discussion	SPC	83 min
Jun 19, 1:54 PM CDT	Mesoscale Discussion	SPC	96 min
Jun 19, 2:24 PM CDT	Severe Thunderstorm Watch	SPC	8 hr
Jun 19, 4:36 PM CDT	Flash Flood Warning	DVN	3 hr
Jun 19, 4:42 PM CDT	Severe Thunderstorm Warning	DVN	46 min
Jun 19, 5:03 PM CDT	Severe Thunderstorm Warning	DVN	57 min
Jun 20, 4:15 AM CDT	River Flood Warning	DVN	3 days
Jun 21, 9:40 AM CDT	River Flood Warning	DVN	48 hr
Jun 21, 3:17 PM CDT	Tornado Watch	SPC	8 hr
Jun 21, 6:51 PM CDT	Mesoscale Discussion	SPC	84 min
Jun 21, 8:06 PM CDT	Tornado Warning	DVN	39 min
Jun 21, 8:23 PM CDT	Tornado Warning	DVN	35 min
Jun 21, 8:37 PM CDT	Flash Flood Warning	DVN	6 hr
Jun 21, 8:38 PM CDT	Tornado Warning	DVN	52 min
Jun 21, 9:06 PM CDT	Mesoscale Discussion	SPC	54 min
Jun 21, 9:45 PM CDT	Flash Flood Warning	DVN	6 hr
Jun 22, 12:07 PM CDT	Heat Advisory	DVN	7 hr
Jun 22, 3:25 PM CDT	Heat Advisory	DVN	29 hr
Jun 23, 3:21 PM CDT	Mesoscale Discussion	SPC	54 min
Jun 23, 3:28 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 23, 4:18 PM CDT	Severe Thunderstorm Warning	DVN	87 min
Jun 23, 5:39 PM CDT	Severe Thunderstorm Warning	DVN	51 min
Jun 23, 11:12 PM CDT	River Flood Warning	DVN	29 hr
Jun 24, 3:57 AM CDT	Heat Advisory	DVN	11 hr
Jun 25, 10:40 AM CDT	Heat Advisory	DVN	9 hr
Jun 25, 12:14 PM CDT	Mesoscale Discussion	SPC	61 min
Jun 25, 12:48 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Jun 25, 2:56 PM CDT	Mesoscale Discussion	SPC	64 min
Jun 25, 5:36 PM CDT	Mesoscale Discussion	SPC	84 min
Jun 27, 1:19 PM CDT	Mesoscale Discussion	SPC	56 min
Jun 27, 2:41 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Jul 7, 4:42 PM CDT	Special Weather Statement	DVN	108 min
Jul 10, 1:36 AM CDT	Mesoscale Discussion	SPC	24 min
Jul 10, 10:24 AM CDT	Special Weather Statement	DVN	66 min
Jul 10, 11:46 AM CDT	Flash Flood Warning	DVN	8 hr
Jul 10, 11:52 AM CDT	Special Weather Statement	DVN	53 min
Jul 10, 10:52 PM CDT	Severe Thunderstorm Warning	DVN	53 min
Jul 11, 12:06 AM CDT	Special Weather Statement	DVN	54 min
Jul 15, 5:06 AM CDT	Special Weather Statement	DVN	69 min
Jul 15, 5:50 AM CDT	Special Weather Statement	DVN	85 min
Jul 15, 7:02 AM CDT	Special Weather Statement	DVN	58 min
Jul 15, 7:50 AM CDT	Special Weather Statement	DVN	55 min
Jul 24, 1:12 PM CDT	Tornado Watch	SPC	4 hr
Jul 24, 3:52 PM CDT	Mesoscale Discussion	SPC	83 min
Jul 24, 5:02 PM CDT	Tornado Watch	SPC	6 hr
Jul 24, 7:20 PM CDT	Mesoscale Discussion	SPC	85 min
Jul 24, 8:43 PM CDT	Severe Thunderstorm Warning	DVN	62 min
Jul 24, 9:22 PM CDT	Mesoscale Discussion	SPC	53 min
Jul 24, 9:54 PM CDT	Severe Thunderstorm Warning	DVN	43 min
Aug 8, 2:43 AM CDT	Heat Advisory	DVN	40 hr
Aug 9, 9:55 AM CDT	Mesoscale Discussion	SPC	35 min
Aug 9, 10:21 AM CDT	Severe Thunderstorm Watch	SPC	8 hr
Aug 9, 3:41 PM CDT	Flash Flood Watch	DVN	11 hr
Aug 9, 5:52 PM CDT	Severe Thunderstorm Watch	SPC	8 hr
Aug 9, 7:34 PM CDT	Severe Thunderstorm Warning	DVN	56 min
Aug 9, 8:07 PM CDT	Severe Thunderstorm Warning	DVN	68 min
Aug 19, 4:49 PM CDT	Tornado Watch	SPC	5 hr
Aug 19, 7:45 PM CDT	Mesoscale Discussion	SPC	90 min
Aug 26, 9:10 AM CDT	Flash Flood Watch	DVN	42 hr
Aug 26, 2:19 PM CDT	Special Weather Statement	DVN	56 min
Aug 26, 9:54 PM CDT	River Flood Warning	DVN	5 days
Aug 27, 1:53 AM CDT	Special Weather Statement	DVN	6 hr
Aug 27, 2:06 AM CDT	Flash Flood Warning	DVN	3 hr
Aug 27, 3:59 AM CDT	River Flood Warning	DVN	4 days
Aug 27, 7:19 AM CDT	Special Weather Statement	DVN	4 hr
Aug 27, 7:55 AM CDT	Flash Flood Warning	DVN	6 hr
Aug 27, 9:52 AM CDT	River Flood Warning	DVN	49 hr
Aug 27, 5:51 PM CDT	Flash Flood Warning	DVN	6 hr
Aug 28, 12:03 AM CDT	Areal Flood Warning	DVN	12 hr
Aug 28, 6:38 AM CDT	River Flood Warning	DVN	14 hr
Aug 28, 12:00 PM CDT	Areal Flood Warning	DVN	48 hr
Sep 9, 9:22 PM CDT	Dense Fog Advisory	DVN	13 hr
Sep 10, 3:10 PM CDT	Dense Fog Advisory	DVN	18 hr
Sep 23, 4:12 AM CDT	Dense Fog Advisory	DVN	6 hr
Sep 29, 3:17 AM CDT	Frost Advisory	DVN	24 hr
Oct 9, 4:02 AM CDT	Freeze Warning	DVN	29 hr
Oct 22, 9:43 AM CDT	River Flood Warning	DVN	19 days
Oct 23, 4:38 AM CDT	River Flood Warning	DVN	48 hr
Oct 29, 7:30 PM CDT	River Flood Warning	DVN	4 days
Oct 29, 8:44 PM CDT	River Flood Warning	DVN	50 hr
Nov 20, 9:28 PM CST	Dense Fog Advisory	DVN	13 hr
Dec 6, 3:14 PM CST	Winter Storm Watch	DVN	25 hr
Dec 7, 3:46 AM CST	Blizzard Watch	DVN	34 hr
Dec 7, 3:45 PM CST	Winter Storm Warning	DVN	50 hr
Dec 8, 11:22 AM CST	Mesoscale Discussion	SPC	5 hr
Dec 8, 1:55 PM CST	Blizzard Warning	DVN	28 hr
Dec 8, 6:00 PM CST	Mesoscale Discussion	SPC	5 hr
Dec 9, 10:22 AM CST	Mesoscale Discussion	SPC	4 hr
Dec 9, 3:41 PM CST	Winter Weather Advisory	DVN	12 hr
Dec 10, 3:16 AM CST	Wind Chill Advisory	DVN	9 hr
Dec 12, 2:52 PM CST	Freezing Rain Advisory	DVN	17 hr
Dec 14, 2:06 AM CST	Winter Weather Advisory	DVN	10 hr
Dec 14, 3:25 PM CST	Wind Chill Advisory	DVN	20 hr
Dec 21, 3:18 PM CST	Winter Storm Watch	DVN	3 days
Dec 22, 3:47 PM CST	Flood Watch	DVN	62 hr
Dec 22, 4:07 PM CST	Winter Weather Advisory	DVN	36 hr
Dec 23, 6:44 AM CST	Mesoscale Discussion	SPC	4 hr
Dec 25, 10:10 AM CST	River Flood Warning	DVN	24 hr
Dec 25, 10:10 AM CST	River Flood Warning	DVN	42 hr
Dec 27, 3:52 AM CST	River Flood Warning	DVN	31 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	11
Tornado Warning	3
Severe Thunderstorm Watch	11
Tornado Watch	4
Mesoscale Discussion	36
Special Weather Statement	17
Flooding
Areal Flood Warning	4
Flash Flood Warning	7
River Flood Warning	27
Flash Flood Watch	6
Flood Watch	1
Winter
Blizzard Warning	2
Winter Storm Warning	3
Blizzard Watch	2
Winter Storm Watch	4
Freezing Rain Advisory	1
Winter Weather Advisory	11
Heat
Heat Advisory	5
Cold
Freeze Warning	1
Wind Chill Warning	1
Frost Advisory	2
Wind Chill Advisory	5
Wind and dust
Wind Advisory	3
Fog and smoke
Dense Fog Advisory	7

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2008 2010

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.