Alert archive / Montana / Treasure County

Weather alerts in Treasure County, Montana, 2008

90 weather alerts in 2008, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Treasure County and its neighbors

Each county as a circle sized by its count in 2008. Tap one for its archive.

Alerts
90
Warnings
31
Watches
18
Advisories
16
Busiest month
June24 alerts
Busiest day
June 18, 200811 alerts

Over time

By month

Warning verification

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

Treasure County, 2008

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings16663%771%19 min
Flash flood warnings2150%0

Each office's whole area, 2008

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Billings, MT: tornado warnings110%250%7 min
NWS Billings, MT: severe thunderstorm warnings1878057%14079%27 min
NWS Billings, MT: flash flood warnings8363%683%155 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 14, 3:51 AM MSTHigh Wind WatchBYZ23 hr
Jan 16, 3:09 AM MSTWinter Storm WatchBYZ13 hr
Jan 16, 3:41 PM MSTWinter Storm WarningBYZ49 hr
Jan 19, 3:28 PM MSTSnow and Blowing Snow AdvisoryBYZ24 hr
Jan 21, 6:33 PM MSTWind Chill AdvisoryBYZ15 hr
Jan 22, 2:49 PM MSTSnow and Blowing Snow AdvisoryBYZ17 hr
Jan 27, 2:40 PM MSTWinter Weather AdvisoryBYZ31 hr
Feb 8, 4:00 AM MSTWinter Weather AdvisoryBYZ41 hr
Feb 9, 8:56 AM MSTWinter Storm WarningBYZ12 hr
Feb 10, 2:54 PM MSTSnow AdvisoryBYZ24 hr
Mar 6, 6:08 AM MSTSnow AdvisoryBYZ15 hr
Mar 30, 3:23 PM MDTSnow AdvisoryBYZ29 hr
Apr 14, 3:20 AM MDTRed Flag WarningBYZ17 hr
Apr 19, 9:41 AM MDTRed Flag WarningBYZ11 hr
Apr 28, 3:03 PM MDTFire Weather WatchBYZ15 hr
Apr 29, 5:59 AM MDTRed Flag WarningBYZ17 hr
May 1, 3:28 PM MDTSnow AdvisoryBYZ15 hr
Jun 1, 2:58 PM MDTMesoscale DiscussionSPC92 min
Jun 1, 4:41 PM MDTSevere Thunderstorm WarningBYZ64 min
Jun 1, 6:06 PM MDTSevere Thunderstorm WarningBYZ54 min
Jun 10, 3:41 PM MDTMesoscale DiscussionSPC64 min
Jun 10, 4:21 PM MDTSevere Thunderstorm WatchSPC4 hr
Jun 16, 3:27 PM MDTMesoscale DiscussionSPC93 min
Jun 17, 12:40 PM MDTMesoscale DiscussionSPC65 min
Jun 17, 1:27 PM MDTSevere Thunderstorm WatchSPC8 hr
Jun 17, 5:48 PM MDTSevere Thunderstorm WatchSPC9 hr
Jun 17, 6:29 PM MDTMesoscale DiscussionSPC61 min
Jun 17, 8:03 PM MDTSevere Thunderstorm WarningBYZ57 min
Jun 17, 8:33 PM MDTSevere Thunderstorm WarningBYZ22 min
Jun 17, 10:16 PM MDTMesoscale DiscussionSPC89 min
Jun 17, 10:29 PM MDTSevere Thunderstorm WarningBYZ61 min
Jun 17, 11:09 PM MDTSevere Thunderstorm WarningBYZ66 min
Jun 17, 11:29 PM MDTSevere Thunderstorm WarningBYZ31 min
Jun 18, 1:14 AM MDTSevere Thunderstorm WarningBYZ61 min
Jun 18, 2:35 AM MDTFlash Flood WarningBYZ6 hr
Jun 18, 3:58 AM MDTSevere Thunderstorm WarningBYZ62 min
Jun 18, 3:57 PM MDTMesoscale DiscussionSPC93 min
Jun 18, 8:53 PM MDTSevere Thunderstorm WarningBYZ67 min
Jun 23, 4:13 PM MDTMesoscale DiscussionSPC62 min
Jun 25, 3:01 PM MDTSevere Thunderstorm WatchSPC6 hr
Jun 25, 7:49 PM MDTMesoscale DiscussionSPC86 min
Jul 1, 2:48 PM MDTSevere Thunderstorm WatchSPC7 hr
Jul 1, 6:02 PM MDTMesoscale DiscussionSPC118 min
Jul 5, 3:52 PM MDTSevere Thunderstorm WarningBYZ41 min
Jul 5, 4:25 PM MDTMesoscale DiscussionSPC65 min
Jul 6, 1:32 PM MDTSevere Thunderstorm WatchSPC7 hr
Jul 6, 2:20 PM MDTFlash Flood WarningBYZ3 hr
Jul 6, 6:08 PM MDTMesoscale DiscussionSPC67 min
Jul 10, 3:39 PM MDTRed Flag WarningBYZ26 hr
Jul 18, 12:04 PM MDTMesoscale DiscussionSPC56 min
Jul 18, 1:33 PM MDTSevere Thunderstorm WatchSPC7 hr
Jul 18, 3:32 PM MDTMesoscale DiscussionSPC88 min
Jul 22, 3:12 PM MDTMesoscale DiscussionSPC63 min
Jul 22, 3:24 PM MDTSevere Thunderstorm WatchSPC10 hr
Jul 22, 8:03 PM MDTMesoscale DiscussionSPC87 min
Jul 22, 9:54 PM MDTSevere Thunderstorm WarningBYZ66 min
Jul 23, 12:32 AM MDTMesoscale DiscussionSPC58 min
Jul 26, 1:44 PM MDTMesoscale DiscussionSPC61 min
Jul 26, 8:57 PM MDTSevere Thunderstorm WatchSPC6 hr
Jul 26, 10:09 PM MDTSevere Thunderstorm WatchSPC9 min
Jul 26, 10:37 PM MDTSevere Thunderstorm WarningBYZ53 min
Aug 1, 5:07 AM MDTRed Flag WarningBYZ19 hr
Aug 2, 8:28 PM MDTMesoscale DiscussionSPC62 min
Aug 2, 9:57 PM MDTSevere Thunderstorm WarningBYZ63 min
Aug 3, 8:03 PM MDTMesoscale DiscussionSPC117 min
Aug 3, 9:49 PM MDTSevere Thunderstorm WatchSPC7 hr
Aug 5, 7:37 PM MDTSevere Thunderstorm WarningBYZ53 min
Aug 5, 8:21 PM MDTSevere Thunderstorm WarningBYZ54 min
Aug 5, 8:40 PM MDTMesoscale DiscussionSPC2 hr
Aug 21, 2:33 PM MDTMesoscale DiscussionSPC117 min
Aug 25, 3:31 AM MDTRed Flag WarningBYZ38 hr
Aug 27, 3:41 AM MDTRed Flag WarningBYZ17 hr
Aug 29, 4:26 AM MDTFire Weather WatchBYZ11 hr
Sep 19, 3:06 PM MDTFire Weather WatchBYZ12 hr
Sep 20, 3:32 AM MDTRed Flag WarningBYZ18 hr
Oct 9, 4:12 AM MDTWinter Storm WatchBYZ12 hr
Oct 9, 4:16 PM MDTWinter Storm WarningBYZ71 hr
Oct 11, 10:29 PM MDTMesoscale DiscussionSPC4 hr
Nov 8, 5:44 AM MSTDense Fog AdvisoryBYZ9 hr
Nov 14, 1:17 PM MSTMesoscale DiscussionSPC58 min
Dec 1, 3:42 PM MSTWinter Weather AdvisoryBYZ31 hr
Dec 11, 3:40 PM MSTWinter Storm WatchBYZ24 hr
Dec 12, 3:48 PM MSTBlizzard WarningBYZ35 hr
Dec 12, 3:48 PM MSTWinter Storm WarningBYZ35 hr
Dec 13, 10:35 AM MSTMesoscale DiscussionSPC4 hr
Dec 13, 9:16 PM MSTWind Chill AdvisoryBYZ31 hr
Dec 18, 9:28 PM MSTWinter Weather AdvisoryBYZ24 hr
Dec 22, 4:20 AM MSTWinter Weather AdvisoryBYZ35 hr
Dec 25, 2:18 PM MSTWinter Weather AdvisoryBYZ26 hr
Dec 28, 7:57 PM MSTFreezing Rain AdvisoryBYZ4 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 archive20072009

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.