Alert archive / Nebraska / Johnson County / 2026

Weather alerts in Johnson County, Nebraska, May 2026

37 weather alerts in May 2026, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Alerts
37
Warnings
20
Watches
6
Advisories
2
Busiest day
May 17, 202617 alerts

Over time

By day

Days in UTC, the clock the archive keeps.

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
May 1, 12:36 PM CDTFrost AdvisoryOAX19 hr
May 15, 5:16 PM CDTSevere Thunderstorm WatchSPC8 hr
May 16, 4:42 PM CDTMesoscale DiscussionSPC3 hr
May 16, 5:08 PM CDTSevere Thunderstorm WatchSPC9 hr
May 16, 8:36 PM CDTMesoscale DiscussionSPC114 min
May 16, 8:43 PM CDTFlood WatchOAX6 hr
May 16, 9:12 PM CDTSevere Thunderstorm Warning Considerable damage threatOAX48 min
May 16, 9:56 PM CDTSevere Thunderstorm WarningOAX49 min
May 16, 10:15 PM CDTMesoscale DiscussionSPC2 hr
May 16, 10:28 PM CDTSevere Thunderstorm WarningOAX62 min
May 16, 11:08 PM CDTFlash Flood WarningOAX3 hr
May 16, 11:46 PM CDTSevere Thunderstorm Warning Considerable damage threatOAX59 min
May 16, 11:59 PM CDTSevere Thunderstorm Warning Destructive damage threatOAX46 min
May 17, 12:03 AM CDTSevere Thunderstorm WarningOAX57 min
May 17, 12:33 AM CDTMesoscale DiscussionSPC87 min
May 17, 12:41 AM CDTSevere Thunderstorm WarningOAX79 min
May 17, 12:54 AM CDTFlash Flood WarningOAX93 min
May 17, 11:52 AM CDTFlood WatchOAX34 hr
May 17, 2:45 PM CDTMesoscale DiscussionSPC60 min
May 17, 3:16 PM CDTTornado WatchSPC8 hr
May 17, 6:53 PM CDTMesoscale DiscussionSPC67 min
May 17, 7:56 PM CDTSevere Thunderstorm WarningOAX49 min
May 17, 8:29 PM CDTSevere Thunderstorm WarningOAX46 min
May 17, 8:43 PM CDTSevere Thunderstorm WarningOAX47 min
May 17, 9:14 PM CDTSevere Thunderstorm WarningOAX46 min
May 17, 10:00 PM CDTSevere Thunderstorm WarningOAX30 min
May 18, 12:50 PM CDTTornado Watch PDSSPC7 hr
May 18, 2:54 PM CDTSevere Thunderstorm Warning Considerable damage threatOAX66 min
May 18, 3:29 PM CDTMesoscale DiscussionSPC2 hr
May 18, 3:38 PM CDTTornado WarningOAX50 min
May 18, 3:43 PM CDTSevere Thunderstorm Warning Considerable damage threatOAX51 min
May 18, 3:49 PM CDTFlash Flood WarningOAX4 hr
May 18, 4:02 PM CDTSevere Thunderstorm Warning Considerable damage threatOAX43 min
May 18, 5:02 PM CDTAreal Flood AdvisoryOAX5 hr
May 18, 6:13 PM CDTSevere Thunderstorm WarningOAX20 min
May 22, 5:24 PM CDTMesoscale DiscussionSPC2 hr
May 30, 9:25 PM CDTMesoscale DiscussionSPC2 hr

By product

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

ProductAlerts
Severe storms
Severe Thunderstorm Warning16
Tornado Warning1
Severe Thunderstorm Watch2
Tornado Watch2
Mesoscale Discussion9
Flooding
Flash Flood Warning3
Flood Watch2
Areal Flood Advisory1
Cold
Frost Advisory1

Nearby

Alerts in force nowTornadoes on recordForecastThe radar archive2025

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.