Alert archive / Idaho / Elmore County

Weather alerts in Elmore County, Idaho, 2013

95 weather alerts in 2013, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Elmore County and its neighbors

Each county as a circle sized by its count in 2013. Tap one for its archive.

Alerts
95
Warnings
26
Watches
11
Advisories
42
Busiest month
September21 alerts
Busiest day
September 13, 20136 alerts

Over time

By month

Warning verification

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

0 of 1 tornado reports fell inside a warning.

Elmore County, 2013

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings010%
Severe thunderstorm warnings60100%20%
Flash flood warnings10100%10%

Each office's whole area, 2013

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Boise, ID: tornado warnings020%
NWS Boise, ID: severe thunderstorm warnings331167%3358%24 min
NWS Boise, ID: flash flood warnings17476%1362%30 min

An office's figures cover every county it serves, including across state lines.

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.

The alerts

Every alert, in the order issued. Times are local, Mountain Time. Each opens its own page with the text, the map, the radar and the sounding.

IssuedProductOfficeLasted
Jan 7, 12:46 PM MSTWinter Weather AdvisoryBOI7 hr
Jan 8, 3:25 PM MSTWinter Weather AdvisoryBOI50 hr
Jan 16, 11:02 PM MSTDense Fog AdvisoryBOI12 hr
Jan 17, 4:49 PM MSTDense Fog AdvisoryBOI18 hr
Jan 18, 2:40 PM MSTDense Fog AdvisoryBOI20 hr
Jan 19, 2:35 PM MSTDense Fog AdvisoryBOI20 hr
Jan 20, 10:39 AM MSTDense Fog AdvisoryBOI20 hr
Jan 21, 2:19 PM MSTDense Fog AdvisoryBOI21 hr
Jan 23, 1:02 PM MSTWinter Weather AdvisoryBOI22 hr
Jan 24, 2:53 PM MSTWinter Weather AdvisoryBOI33 hr
Jan 24, 2:57 PM MSTDense Fog AdvisoryBOI20 hr
Jan 26, 12:27 AM MSTDense Fog AdvisoryBOI13 hr
Jan 26, 1:13 PM MSTDense Fog AdvisoryBOI4 hr
Jan 27, 1:07 AM MSTDense Fog AdvisoryBOI9 hr
Jan 27, 1:57 PM MSTWinter Storm WarningBOI51 hr
Jan 27, 1:57 PM MSTWinter Weather AdvisoryBOI24 hr
Jan 27, 2:14 PM MSTWind AdvisoryBOI23 hr
Jan 28, 1:30 PM MSTWinter Weather AdvisoryBOI28 hr
Feb 1, 6:41 AM MSTDense Fog AdvisoryBOI30 hr
Feb 2, 2:36 PM MSTDense Fog AdvisoryBOI20 hr
Feb 5, 8:44 AM MSTDense Fog AdvisoryBOI3 hr
Feb 6, 3:38 AM MSTDense Fog AdvisoryBOI8 hr
Feb 21, 12:10 PM MSTWinter Storm WatchBOI16 hr
Feb 21, 1:47 PM MSTHigh Wind WatchBOI15 hr
Feb 21, 1:47 PM MSTWind AdvisoryBOI51 hr
Feb 22, 3:44 AM MSTWinter Storm WarningBOI31 hr
Feb 28, 10:29 PM MSTDense Fog AdvisoryBOI12 hr
Mar 1, 3:21 AM MSTWind AdvisoryBOI63 hr
Mar 1, 10:24 PM MSTDense Fog AdvisoryBOI13 hr
Mar 16, 4:06 AM MDTWind AdvisoryBOI32 hr
Mar 20, 7:29 PM MDTSevere Thunderstorm WarningBOI46 min
Apr 8, 4:12 AM MDTWind AdvisoryBOI17 hr
Apr 12, 12:04 PM MDTWind AdvisoryBOI33 hr
Apr 28, 2:06 PM MDTWind AdvisoryBOI29 hr
Apr 30, 1:51 PM MDTHard Freeze WarningBOI18 hr
May 9, 5:27 PM MDTSpecial Weather StatementBOI63 min
May 12, 12:07 PM MDTWind AdvisoryBOI35 hr
May 22, 1:25 PM MDTFrost AdvisoryBOI20 hr
May 22, 9:11 PM MDTFreeze WarningBOI12 hr
May 26, 2:52 PM MDTSpecial Weather StatementBOI38 min
Jun 18, 7:58 PM MDTBlowing Dust AdvisoryBOI3 hr
Jun 28, 1:28 PM MDTHeat AdvisoryBOI5 days
Jul 4, 2:11 PM MDTRed Flag WarningBOI31 hr
Jul 4, 6:44 PM MDTSpecial Weather StatementBOI46 min
Jul 4, 7:05 PM MDTSevere Thunderstorm WarningBOI40 min
Jul 15, 1:58 PM MDTRed Flag WarningBOI40 hr
Jul 19, 9:56 AM MDTRed Flag WarningBOI20 hr
Jul 22, 1:46 PM MDTFire Weather WatchBOI23 hr
Jul 23, 12:54 PM MDTRed Flag WarningBOI29 hr
Jul 31, 11:43 AM MDTRed Flag WarningBOI34 hr
Aug 1, 7:21 PM MDTSpecial Weather StatementBOI39 min
Aug 7, 8:32 AM MDTRed Flag WarningBOI4 days
Aug 13, 2:56 PM MDTFire Weather WatchBOI24 hr
Aug 14, 2:40 PM MDTRed Flag WarningBOI51 hr
Aug 18, 2:10 PM MDTFire Weather WatchBOI23 hr
Aug 19, 12:47 PM MDTRed Flag WarningBOI4 days
Aug 20, 6:59 PM MDTRed Flag WarningBOI65 hr
Aug 22, 4:15 PM MDTMesoscale DiscussionSPC2 hr
Aug 24, 2:55 PM MDTRed Flag WarningBOI8 hr
Aug 24, 3:52 PM MDTSevere Thunderstorm WarningBOI38 min
Aug 25, 3:12 AM MDTRed Flag WarningBOI18 hr
Aug 26, 8:53 AM MDTFire Weather WatchBOI23 hr
Aug 27, 8:00 AM MDTRed Flag WarningBOI37 hr
Aug 27, 4:30 PM MDTSpecial Weather StatementBOI30 min
Aug 27, 4:57 PM MDTSpecial Weather StatementBOI48 min
Aug 27, 5:19 PM MDTSevere Thunderstorm WarningBOI26 min
Sep 1, 3:27 AM MDTFlash Flood WatchBOI69 hr
Sep 3, 2:09 PM MDTMesoscale DiscussionSPC2 hr
Sep 4, 8:50 AM MDTFlash Flood WatchBOI36 hr
Sep 4, 2:48 PM MDTMesoscale DiscussionSPC117 min
Sep 4, 4:27 PM MDTSevere Thunderstorm WarningBOI48 min
Sep 5, 1:06 PM MDTMesoscale DiscussionSPC54 min
Sep 5, 1:35 PM MDTSevere Thunderstorm WatchSPC7 hr
Sep 5, 5:01 PM MDTMesoscale DiscussionSPC89 min
Sep 5, 5:05 PM MDTSevere Thunderstorm WarningBOI40 min
Sep 12, 6:32 PM MDTFlash Flood WarningBOI3 hr
Sep 12, 6:55 PM MDTAreal Flood AdvisoryBOI3 hr
Sep 12, 7:45 PM MDTAreal Flood AdvisoryBOI3 hr
Sep 13, 3:36 AM MDTFlash Flood WatchBOI19 hr
Sep 13, 2:37 PM MDTSpecial Weather StatementBOI83 min
Sep 13, 4:03 PM MDTAreal Flood AdvisoryBOI3 hr
Sep 14, 3:35 AM MDTFlash Flood WatchBOI18 hr
Sep 14, 1:25 PM MDTSpecial Weather StatementBOI35 min
Sep 14, 2:58 PM MDTSpecial Weather StatementBOI32 min
Sep 14, 3:13 PM MDTSpecial Weather StatementBOI47 min
Sep 20, 10:09 AM MDTRed Flag WarningBOI9 hr
Sep 21, 6:41 PM MDTSpecial Weather StatementBOI49 min
Oct 3, 1:33 PM MDTFrost AdvisoryBOI14 hr
Oct 4, 3:21 AM MDTFreeze WarningBOI30 hr
Nov 15, 2:44 AM MSTWinter Weather AdvisoryBOI32 hr
Dec 5, 3:16 PM MSTWinter Weather AdvisoryBOI56 hr
Dec 8, 3:14 PM MSTWind Chill WarningBOI20 hr
Dec 16, 1:42 AM MSTDense Fog AdvisoryBOI12 hr
Dec 16, 2:08 PM MSTDense Fog AdvisoryBOI45 hr
Dec 19, 2:58 PM MSTWinter Weather AdvisoryBOI35 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 archive20122014

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.