Alert archive / Iowa / Jefferson County

Weather alerts in Jefferson County, Iowa, 2021

100 weather alerts in 2021, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Jefferson County and its neighbors

Each county as a circle sized by its count in 2021. Tap one for its archive.

Alerts
100
Warnings
25
Watches
13
Advisories
38
Busiest month
June18 alerts
Busiest day
June 19, 20215 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 2, 2:49 PM CSTDense Fog AdvisoryDVN21 hr
Jan 3, 2:22 PM CSTDense Fog AdvisoryDVN28 hr
Jan 5, 3:41 PM CSTDense Fog AdvisoryDVN18 hr
Jan 6, 2:37 PM CSTDense Fog AdvisoryDVN13 hr
Jan 13, 2:53 PM CSTWinter Weather AdvisoryDVN44 hr
Jan 19, 4:59 AM CSTWinter Weather AdvisoryDVN5 hr
Jan 23, 3:44 PM CSTWinter Storm WatchDVN23 hr
Jan 24, 2:43 PM CSTWinter Storm WarningDVN45 hr
Jan 24, 2:43 PM CSTWinter Weather AdvisoryDVN45 hr
Jan 25, 3:26 PM CSTMesoscale DiscussionSPC4 hr
Jan 29, 2:29 PM CSTWinter Weather AdvisoryDVN52 hr
Feb 3, 1:04 AM CSTDense Fog AdvisoryDVN10 hr
Feb 3, 4:01 AM CSTWinter Weather AdvisoryDVN56 hr
Feb 3, 2:56 PM CSTWinter Storm WarningDVN36 hr
Feb 5, 1:38 PM CSTWinter Weather AdvisoryDVN29 hr
Feb 6, 3:47 AM CSTWind Chill WarningDVN32 hr
Feb 6, 3:47 AM CSTWind Chill AdvisoryDVN32 hr
Feb 8, 11:03 AM CSTWinter Weather AdvisoryDVN12 hr
Feb 8, 2:48 PM CSTWind Chill AdvisoryDVN19 hr
Feb 11, 5:07 PM CSTWind Chill AdvisoryDVN43 hr
Feb 13, 3:37 AM CSTWind Chill WarningDVN56 hr
Feb 15, 12:10 PM CSTWind Chill AdvisoryDVN22 hr
Feb 20, 2:35 PM CSTWinter Weather AdvisoryDVN30 hr
Feb 28, 6:13 AM CSTDense Fog AdvisoryDVN6 hr
Mar 10, 2:52 AM CSTWind AdvisoryDVN17 hr
Mar 16, 12:37 AM CDTDense Fog AdvisoryDVN9 hr
Mar 17, 2:28 PM CDTWind AdvisoryDVN29 hr
Mar 23, 6:11 PM CDTSpecial Weather StatementDVN64 min
Mar 28, 3:24 AM CDTFire Weather WatchDVN12 hr
Mar 28, 2:41 PM CDTWind AdvisoryDVN29 hr
Mar 28, 2:55 PM CDTRed Flag WarningDVN29 hr
Apr 7, 5:04 PM CDTMesoscale DiscussionSPC116 min
Apr 10, 9:53 AM CDTWind AdvisoryDVN14 hr
Apr 13, 2:47 PM CDTFrost AdvisoryDVN17 hr
Apr 14, 2:45 PM CDTFrost AdvisoryDVN17 hr
Apr 19, 3:41 AM CDTFreeze WatchDVN10 hr
Apr 19, 2:07 PM CDTFreeze WarningDVN43 hr
Apr 21, 3:07 AM CDTFreeze WarningDVN30 hr
May 11, 2:26 PM CDTFrost AdvisoryDVN17 hr
Jun 1, 1:18 AM CDTDense Fog AdvisoryDVN8 hr
Jun 16, 2:51 PM CDTHeat AdvisoryDVN28 hr
Jun 18, 9:27 PM CDTMesoscale DiscussionSPC2 hr
Jun 18, 10:08 PM CDTSevere Thunderstorm WatchSPC8 hr
Jun 18, 11:21 PM CDTSevere Thunderstorm WarningDVN39 min
Jun 19, 12:12 AM CDTSevere Thunderstorm WarningDVN48 min
Jun 19, 2:10 AM CDTMesoscale DiscussionSPC2 hr
Jun 20, 4:01 PM CDTSevere Thunderstorm WatchSPC7 hr
Jun 20, 6:56 PM CDTMesoscale DiscussionSPC2 hr
Jun 22, 6:50 PM CDTSpecial Weather StatementDVN25 min
Jun 22, 6:57 PM CDTSevere Thunderstorm WarningDVN33 min
Jun 22, 9:42 PM CDTSpecial Weather StatementDVN48 min
Jun 24, 2:08 PM CDTFlash Flood WatchDVN54 hr
Jun 24, 7:23 PM CDTSevere Thunderstorm WarningDVN40 min
Jun 24, 8:13 PM CDTSpecial Weather StatementDVN47 min
Jun 24, 8:42 PM CDTFlash Flood WarningDVN6 hr
Jun 25, 2:49 AM CDTAreal Flood WarningDVN17 hr
Jun 30, 4:22 AM CDTDense Fog AdvisoryDVN4 hr
Jul 9, 2:49 AM CDTFlash Flood WatchDVN40 hr
Jul 9, 5:40 PM CDTMesoscale DiscussionSPC95 min
Jul 9, 5:59 PM CDTSpecial Weather StatementDVN31 min
Jul 9, 7:08 PM CDTSevere Thunderstorm WatchSPC3 hr
Jul 9, 7:51 PM CDTSevere Thunderstorm WarningDVN24 min
Jul 10, 4:25 AM CDTSpecial Weather StatementDVN95 min
Jul 11, 10:56 AM CDTFlash Flood WarningDVN4 hr
Jul 14, 10:02 AM CDTSpecial Weather StatementDVN28 min
Jul 14, 10:28 AM CDTSpecial Weather StatementDVN32 min
Jul 15, 8:58 AM CDTSpecial Weather StatementDVN47 min
Jul 23, 3:18 AM CDTHeat AdvisoryDVN41 hr
Jul 27, 3:12 AM CDTHeat AdvisoryDVN64 hr
Aug 8, 2:24 PM CDTHeat AdvisoryDVN53 hr
Aug 10, 1:12 PM CDTMesoscale DiscussionSPC93 min
Aug 10, 2:08 PM CDTSevere Thunderstorm WatchSPC6 hr
Aug 10, 2:28 PM CDTHeat AdvisoryDVN29 hr
Aug 11, 3:56 PM CDTMesoscale DiscussionSPC3 hr
Aug 23, 2:45 PM CDTHeat AdvisoryDVN29 hr
Aug 25, 3:53 AM CDTSpecial Weather StatementDVN37 min
Aug 26, 3:27 AM CDTHeat AdvisoryDVN17 hr
Aug 26, 1:55 PM CDTSpecial Weather StatementDVN35 min
Aug 26, 10:57 PM CDTSevere Thunderstorm Warning Considerable damage threatDVN48 min
Aug 26, 11:20 PM CDTTornado WarningDVN27 min
Aug 26, 11:39 PM CDTSevere Thunderstorm Warning Considerable damage threatDVN31 min
Sep 20, 2:07 PM CDTSevere Thunderstorm WatchSPC7 hr
Sep 20, 3:55 PM CDTMesoscale DiscussionSPC95 min
Sep 20, 5:52 PM CDTMesoscale DiscussionSPC113 min
Sep 20, 7:13 PM CDTSevere Thunderstorm WarningDVN47 min
Oct 13, 7:51 AM CDTSpecial Weather StatementDVN39 min
Oct 23, 12:53 PM CDTFlash Flood WatchDVN38 hr
Oct 31, 2:22 PM CDTFreeze WarningDVN19 hr
Nov 1, 2:14 PM CDTFreeze WarningDVN19 hr
Nov 14, 2:27 AM CSTWind AdvisoryDVN7 hr
Dec 13, 2:36 PM CSTHigh Wind WatchDVN24 hr
Dec 14, 2:33 PM CSTHigh Wind WarningDVN39 hr
Dec 15, 4:51 PM CSTMesoscale DiscussionSPC114 min
Dec 15, 5:30 PM CSTTornado WatchSPC6 hr
Dec 15, 7:31 PM CSTSevere Thunderstorm Warning Considerable damage threatDVN59 min
Dec 15, 8:18 PM CSTSevere Thunderstorm Warning Considerable damage threatDVN57 min
Dec 15, 8:34 PM CSTSevere Thunderstorm Warning Considerable damage threatDVN26 min
Dec 27, 2:57 PM CSTWinter Weather AdvisoryDVN27 hr
Dec 28, 8:59 AM CSTMesoscale DiscussionSPC5 hr
Dec 30, 7:17 PM CSTDense Fog AdvisoryDVN23 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 archive20202022

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.