Alert archive / Iowa / Johnson County

Weather alerts in Johnson County, Iowa, 2016

113 weather alerts in 2016, 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 2016. Tap one for its archive.

Alerts
113
Warnings
23
Watches
21
Advisories
27
Busiest month
July19 alerts
Busiest day
June 22, 20168 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.

IssuedProductOfficeLasted
Jan 8, 6:21 AM CSTDense Fog AdvisoryDVN17 hr
Jan 9, 3:22 AM CSTWind Chill AdvisoryDVN33 hr
Jan 12, 6:03 AM CSTWind Chill AdvisoryDVN6 hr
Jan 16, 3:14 PM CSTWind Chill AdvisoryDVN45 hr
Feb 1, 3:48 AM CSTWinter Weather AdvisoryDVN35 hr
Feb 1, 10:03 AM CSTDense Fog AdvisoryDVN4 hr
Feb 1, 9:14 PM CSTDense Fog AdvisoryDVN6 hr
Feb 2, 5:31 PM CSTDense Fog AdvisoryDVN9 hr
Feb 13, 3:38 AM CSTWinter Weather AdvisoryDVN38 hr
Feb 15, 4:30 AM CSTDense Fog AdvisoryDVN6 hr
Feb 18, 3:49 PM CSTWind AdvisoryDVN26 hr
Feb 19, 9:55 AM CSTHigh Wind WarningDVN8 hr
Mar 14, 12:59 AM CDTDense Fog AdvisoryDVN9 hr
Mar 15, 3:48 AM CDTHigh Wind WatchDVN12 hr
Mar 15, 3:27 PM CDTWind AdvisoryDVN29 hr
Mar 15, 3:31 PM CDTTornado WatchSPC7 hr
Apr 1, 3:28 PM CDTWind AdvisoryDVN28 hr
Apr 3, 4:18 AM CDTWind AdvisoryDVN17 hr
Apr 7, 3:45 PM CDTFreeze WatchDVN12 hr
Apr 8, 3:16 AM CDTFreeze WarningDVN30 hr
Apr 11, 9:42 AM CDTFreeze WarningDVN23 hr
May 9, 11:25 PM CDTRiver Flood WarningDVN44 hr
May 14, 3:47 AM CDTFrost AdvisoryDVN28 hr
May 26, 4:59 AM CDTSevere Thunderstorm WarningDVN31 min
May 26, 5:25 AM CDTSpecial Weather StatementDVN50 min
May 27, 7:19 PM CDTSpecial Weather StatementDVN41 min
May 27, 7:51 PM CDTSpecial Weather StatementDVN54 min
May 27, 8:37 PM CDTFlash Flood WarningDVN6 hr
May 28, 12:37 PM CDTMesoscale DiscussionSPC113 min
May 28, 1:37 PM CDTSevere Thunderstorm WatchSPC7 hr
May 28, 5:33 PM CDTMesoscale DiscussionSPC57 min
May 31, 8:13 PM CDTSpecial Weather StatementDVN62 min
Jun 1, 3:35 AM CDTDense Fog AdvisoryDVN4 hr
Jun 14, 3:49 PM CDTMesoscale DiscussionSPC56 min
Jun 14, 6:24 PM CDTMesoscale DiscussionSPC66 min
Jun 14, 8:36 PM CDTMesoscale DiscussionSPC84 min
Jun 21, 2:33 PM CDTFlash Flood WatchDVN19 hr
Jun 21, 10:28 PM CDTMesoscale DiscussionSPC2 hr
Jun 21, 11:18 PM CDTSevere Thunderstorm WatchSPC6 hr
Jun 22, 1:37 AM CDTFlash Flood WarningDVN6 hr
Jun 22, 2:31 AM CDTMesoscale DiscussionSPC119 min
Jun 22, 3:07 AM CDTSpecial Weather StatementDVN38 min
Jun 22, 4:18 AM CDTFlash Flood WarningDVN6 hr
Jun 22, 9:13 AM CDTSpecial Weather StatementDVN3 hr
Jun 22, 6:11 PM CDTTornado WatchSPC7 hr
Jun 26, 3:32 AM CDTSpecial Weather StatementDVN43 min
Jun 26, 4:19 AM CDTSpecial Weather StatementDVN41 min
Jun 30, 1:29 PM CDTMesoscale DiscussionSPC3 hr
Jul 5, 9:50 PM CDTSevere Thunderstorm WatchSPC7 hr
Jul 5, 10:46 PM CDTMesoscale DiscussionSPC89 min
Jul 6, 1:27 AM CDTMesoscale DiscussionSPC2 hr
Jul 6, 1:51 AM CDTSpecial Weather StatementDVN54 min
Jul 6, 2:42 AM CDTSevere Thunderstorm WarningDVN48 min
Jul 6, 3:09 AM CDTSevere Thunderstorm WarningDVN51 min
Jul 7, 12:30 AM CDTMesoscale DiscussionSPC90 min
Jul 10, 7:34 AM CDTMesoscale DiscussionSPC86 min
Jul 13, 11:14 AM CDTSevere Thunderstorm WatchSPC5 hr
Jul 13, 1:44 PM CDTSpecial Weather StatementDVN61 min
Jul 13, 2:01 PM CDTSevere Thunderstorm WarningDVN59 min
Jul 17, 4:37 AM CDTSevere Thunderstorm WarningDVN53 min
Jul 17, 5:31 AM CDTSevere Thunderstorm WarningDVN44 min
Jul 18, 3:37 PM CDTExcessive Heat WatchDVN44 hr
Jul 20, 4:00 AM CDTExcessive Heat WarningDVN4 days
Jul 21, 11:08 PM CDTMesoscale DiscussionSPC67 min
Jul 22, 2:39 PM CDTMesoscale DiscussionSPC3 hr
Jul 23, 2:08 PM CDTMesoscale DiscussionSPC3 hr
Jul 23, 3:23 PM CDTSevere Thunderstorm WatchSPC7 hr
Aug 4, 12:15 PM CDTMesoscale DiscussionSPC2 hr
Aug 4, 4:44 PM CDTSevere Thunderstorm WatchSPC6 hr
Aug 4, 8:19 PM CDTSevere Thunderstorm WarningDVN56 min
Aug 11, 3:08 AM CDTFlash Flood WatchDVN30 hr
Aug 11, 8:57 PM CDTSpecial Weather StatementDVN93 min
Aug 11, 9:07 PM CDTMesoscale DiscussionSPC53 min
Aug 11, 9:31 PM CDTFlash Flood WarningDVN6 hr
Aug 11, 9:53 PM CDTRiver Flood WatchDVN4 days
Aug 11, 9:53 PM CDTRiver Flood WatchDVN4 days
Aug 11, 10:33 PM CDTSpecial Weather StatementDVN87 min
Aug 12, 8:50 AM CDTRiver Flood WarningDVN4 days
Aug 12, 10:05 AM CDTAreal Flood WarningDVN9 hr
Aug 24, 4:05 AM CDTFlash Flood WatchDVN23 hr
Aug 24, 8:01 PM CDTSpecial Weather StatementDVN59 min
Aug 28, 1:31 PM CDTSpecial Weather StatementDVN59 min
Sep 6, 3:25 PM CDTFlash Flood WatchDVN39 hr
Sep 7, 1:00 PM CDTMesoscale DiscussionSPC3 hr
Sep 7, 2:19 PM CDTSpecial Weather StatementDVN26 min
Sep 8, 12:41 AM CDTSpecial Weather StatementDVN64 min
Sep 8, 1:53 AM CDTSpecial Weather StatementDVN22 min
Sep 8, 2:20 AM CDTSpecial Weather StatementDVN55 min
Sep 15, 9:23 PM CDTRiver Flood WatchDVN24 hr
Sep 19, 2:02 PM CDTMesoscale DiscussionSPC58 min
Sep 19, 2:55 PM CDTTornado WatchSPC4 hr
Sep 19, 5:07 PM CDTMesoscale DiscussionSPC113 min
Sep 21, 2:00 PM CDTMesoscale DiscussionSPC2 hr
Sep 21, 9:44 PM CDTRiver Flood WatchDVN24 hr
Sep 22, 10:26 AM CDTRiver Flood WarningDVN10 days
Sep 23, 4:24 AM CDTSpecial Weather StatementDVN51 min
Sep 23, 4:33 AM CDTFlash Flood WarningDVN6 hr
Sep 23, 11:01 PM CDTRiver Flood WarningDVN3 days
Oct 12, 3:45 AM CDTFreeze WarningDVN29 hr
Oct 20, 2:17 PM CDTFrost AdvisoryDVN18 hr
Nov 1, 11:46 PM CDTMesoscale DiscussionSPC2 hr
Nov 15, 5:04 AM CSTDense Fog AdvisoryDVN6 hr
Nov 18, 11:12 AM CSTWind AdvisoryDVN25 hr
Nov 28, 4:28 PM CSTMesoscale DiscussionSPC92 min
Dec 3, 2:44 PM CSTWinter Weather AdvisoryDVN24 hr
Dec 5, 3:47 AM CSTDense Fog AdvisoryDVN9 hr
Dec 9, 11:09 AM CSTWinter Weather AdvisoryDVN58 hr
Dec 14, 3:05 AM CSTWind Chill AdvisoryDVN31 hr
Dec 15, 11:34 AM CSTWinter Weather AdvisoryDVN60 hr
Dec 16, 3:37 PM CSTWind Chill WarningDVN44 hr
Dec 16, 3:37 PM CSTWind Chill AdvisoryDVN66 hr
Dec 26, 1:11 AM CSTRiver Flood WatchDVN6 days
Dec 29, 3:34 AM CSTWind AdvisoryDVN13 hr

By product

Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force nowTornadoes on recordForecastThe radar archive20152017

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.