Alert archive / Idaho

Weather alerts in Kootenai County, Idaho

2,006 weather alerts since 1986, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Kootenai County and its neighbors

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

Alerts
2,006
Warnings
510
Watches
361
Advisories
914
Busiest year
2012123 alerts
Average year
57over 35 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.

Severe thunderstorm warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
20086433%0
2009110%10%
201010100%0
2011010%
20128713%367%27 min
20134325%20%
20146517%1145%28 min
201510100%0
20163167%0
201910640%520%29 min
2021010%
2022440%7100%19 min
20235420%2959%15 min
20245420%1100%43 min
202510100%20%

Flash flood warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
2015110%1100%11 min
2017020%
2018010%
2023010%
2024010%

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
Sep 6, 5:22 PM PDTSevere Thunderstorm WarningOTX20 min
Aug 21, 10:55 AM PDTRed Flag WarningOTX44 hr
Aug 11, 11:02 AM PDTRed Flag WarningOTX45 hr
Jul 31, 8:16 AM PDTRed Flag WarningOTX39 hr
Jul 24, 8:27 AM PDTRed Flag WarningOTX38 hr
Jul 15, 11:46 AM PDTRed Flag WarningOTX47 hr
May 28, 7:29 PM PDTSevere Thunderstorm WarningOTX32 min
Mar 10, 1:56 PM PDTHigh Wind WarningOTX45 hr
Mar 10, 4:44 AM PDTWinter Storm WarningOTX4 days
Jan 5, 12:42 AM PSTWinter Storm WarningOTX4 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.