Alert archive / North Dakota

Weather alerts in Dickey County, North Dakota

3,253 weather alerts since 1986, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Dickey County and its neighbors

Each county as a circle sized by its count since 1986. Tap one for its archive.

Alerts
3,253
Warnings
709
Watches
582
Advisories
1,070
Busiest year
2011191 alerts
Average year
81over 40 years on file

Over time

By year

Before late 2005 the archive holds only tornado, severe thunderstorm, flash flood and marine warnings, and from 1997 SPC's watches, so the jump that year is the archive widening, not the weather.

By month of the year

Warning verification

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

From 2008 to 2025, 86% of tornado reports in Dickey County fell inside a tornado warning issued on average 21 minutes before, and 75% of the tornado warnings had no report inside them.

Tornado warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
20083167%1100%25 min
201030100%0
20118450%4100%23 min
201430100%0
201810100%0
201910100%0
20202150%250%7 min
202530100%0
Share of tornado reports inside a tornado warning, by year.

Severe thunderstorm warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
200813931%7100%19 min
20097357%333%19 min
201015660%989%31 min
201114750%771%18 min
20129722%683%12 min
20138538%888%40 min
20147271%250%13 min
201510640%6100%21 min
201616944%1182%25 min
20178363%6100%16 min
20189722%1090%46 min
2019330%250%1 min
2020161131%1173%23 min
20215260%2100%17 min
20229722%11100%24 min
202310100%0
20248713%3100%23 min
20259367%2100%18 min

Flash flood warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
200910100%0
201010100%0
201320100%0
201410100%0
20162150%2100%112 min
2025110%0

Years from 2008, the first full year of storm-based warnings. The year still running is on its own page.

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.

By product

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

The latest warnings

The most recent on file, newest first.

IssuedProductOfficeLasted
Aug 24, 10:11 PM CDTSevere Thunderstorm WarningBIS35 min
Aug 24, 9:05 PM CDTSevere Thunderstorm WarningBIS70 min
Aug 24, 8:58 PM CDTSevere Thunderstorm Warning Considerable damage threatBIS77 min
Aug 24, 8:36 PM CDTSevere Thunderstorm WarningBIS54 min
Aug 11, 5:34 PM CDTSevere Thunderstorm Warning Considerable damage threatBIS39 min
Aug 11, 5:05 PM CDTSevere Thunderstorm Warning Considerable damage threatBIS65 min
Jul 24, 7:23 PM CDTSevere Thunderstorm WarningBIS42 min
Jul 24, 6:59 PM CDTSevere Thunderstorm Warning Considerable damage threatBIS61 min
Jul 19, 10:41 PM CDTSevere Thunderstorm Warning Considerable damage threatBIS46 min
Jul 19, 10:15 PM CDTSevere Thunderstorm WarningBIS60 min
Jul 19, 9:39 PM CDTSevere Thunderstorm WarningBIS66 min
Jul 10, 2:02 AM CDTExtreme Heat WarningBIS5 days

Nearby

Alerts in force nowTornadoes on recordForecastThe radar archive

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.