Alert archive / Montana / McCone County

Weather alerts in McCone County, Montana, 2010

262 weather alerts in 2010, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

McCone County and its neighbors

Each county as a circle sized by its count in 2010. Tap one for its archive.

Alerts
262
Warnings
83
Watches
36
Advisories
104
Busiest month
July54 alerts
Busiest day
May 28, 201014 alerts

Over time

By month

Warning verification

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

1 of 7 tornado warnings covering McCone County in 2010 had a tornado report inside them; 1 of 2 tornado reports fell inside a warning, on average 8 minutes after it went out.

McCone County, 2010

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings7186%250%8 min
Severe thunderstorm warnings553045%2291%28 min
Flash flood warnings010%

Each office's whole area, 2010

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Glasgow, MT: tornado warnings25580%2343%14 min
NWS Glasgow, MT: severe thunderstorm warnings18110443%21674%26 min
NWS Glasgow, MT: flash flood warnings20100%50%

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 3, 2:57 PM MSTWinter Storm WatchGGW23 hr
Jan 4, 3:33 AM MSTWinter Storm WarningGGW59 hr
Jan 6, 3:50 AM MSTWind Chill AdvisoryGGW30 hr
Jan 7, 2:39 PM MSTWind Chill AdvisoryGGW4 hr
Jan 7, 6:56 PM MSTWind Chill WarningGGW16 hr
Jan 11, 2:37 AM MSTDense Fog AdvisoryGGW7 hr
Jan 13, 8:42 PM MSTDense Fog AdvisoryGGW14 hr
Jan 17, 4:59 AM MSTDense Fog AdvisoryGGW7 hr
Jan 20, 3:36 AM MSTDense Fog AdvisoryGGW7 hr
Jan 20, 1:54 PM MSTWinter Storm WatchGGW31 hr
Jan 20, 7:56 PM MSTDense Fog AdvisoryGGW24 hr
Jan 21, 8:54 PM MSTWinter Storm WarningGGW60 hr
Jan 24, 8:27 AM MSTBlizzard WarningGGW30 hr
Jan 26, 2:54 PM MSTWind Chill AdvisoryGGW21 hr
Feb 4, 3:51 AM MSTWinter Weather AdvisoryGGW31 hr
Feb 6, 2:27 PM MSTWind Chill AdvisoryGGW45 hr
Feb 9, 6:38 PM MSTWind Chill AdvisoryGGW9 hr
Feb 11, 5:16 PM MSTDense Fog AdvisoryGGW16 hr
Feb 12, 3:26 AM MSTWinter Weather AdvisoryGGW35 hr
Feb 13, 2:30 PM MSTWind Chill AdvisoryGGW18 hr
Feb 15, 3:32 AM MSTDense Fog AdvisoryGGW7 hr
Feb 16, 2:44 PM MSTWinter Weather AdvisoryGGW31 hr
Feb 21, 7:50 PM MSTDense Fog AdvisoryGGW14 hr
Feb 27, 1:40 AM MSTDense Fog AdvisoryGGW7 hr
Feb 27, 9:11 AM MSTDense Fog AdvisoryGGW2 hr
Mar 1, 4:57 AM MSTDense Fog AdvisoryGGW5 hr
Mar 1, 2:34 PM MSTDense Fog AdvisoryGGW22 hr
Mar 2, 2:33 PM MSTDense Fog AdvisoryGGW20 hr
Mar 3, 9:36 PM MSTDense Fog AdvisoryGGW13 hr
Mar 4, 5:48 PM MSTDense Fog AdvisoryGGW17 hr
Mar 5, 11:50 PM MSTDense Fog AdvisoryGGW14 hr
Mar 6, 6:01 PM MSTDense Fog AdvisoryGGW58 hr
Mar 8, 9:32 AM MSTFreezing Rain AdvisoryGGW4 hr
Mar 29, 9:44 AM MDTRed Flag WarningGGW10 hr
Apr 7, 2:07 PM MDTRed Flag WarningGGW55 hr
Apr 8, 2:39 PM MDTHigh Wind WarningGGW13 hr
Apr 10, 3:37 AM MDTRed Flag WarningGGW16 hr
Apr 14, 2:59 AM MDTLake Wind AdvisoryGGW39 hr
Apr 16, 9:21 PM MDTFire Weather WatchGGW6 hr
Apr 17, 3:38 AM MDTRed Flag WarningGGW15 hr
Apr 17, 3:49 AM MDTLake Wind AdvisoryGGW14 hr
Apr 20, 3:37 AM MDTLake Wind AdvisoryGGW17 hr
Apr 21, 3:38 AM MDTLake Wind AdvisoryGGW17 hr
Apr 22, 2:24 PM MDTLake Wind AdvisoryGGW30 hr
Apr 24, 2:26 PM MDTLake Wind AdvisoryGGW31 hr
Apr 26, 2:53 PM MDTLake Wind AdvisoryGGW4 days
Apr 27, 9:43 PM MDTFire Weather WatchGGW6 hr
Apr 27, 9:43 PM MDTRed Flag WarningGGW19 hr
Apr 30, 9:37 AM MDTHigh Wind WarningGGW11 hr
Apr 30, 9:19 PM MDTLake Wind AdvisoryGGW23 hr
May 1, 9:53 AM MDTWinter Weather AdvisoryGGW18 hr
May 1, 3:39 PM MDTHigh Wind WatchGGW26 hr
May 2, 1:05 PM MDTLake Wind AdvisoryGGW5 hr
May 2, 5:45 PM MDTHigh Wind WarningGGW51 hr
May 4, 9:18 PM MDTLake Wind AdvisoryGGW6 hr
May 6, 4:22 AM MDTWinter Storm WarningGGW10 hr
May 6, 9:24 AM MDTWinter Weather AdvisoryGGW5 hr
May 17, 3:29 AM MDTLake Wind AdvisoryGGW16 hr
May 18, 3:56 AM MDTLake Wind AdvisoryGGW24 hr
May 20, 3:37 AM MDTLake Wind AdvisoryGGW17 hr
May 20, 1:21 PM MDTMesoscale DiscussionSPC54 min
May 22, 2:29 PM MDTLake Wind AdvisoryGGW27 hr
May 24, 3:47 AM MDTLake Wind AdvisoryGGW39 hr
May 24, 2:10 PM MDTFlood WatchGGW22 hr
May 24, 3:06 PM MDTHigh Wind WarningGGW21 hr
May 26, 4:05 AM MDTLake Wind AdvisoryGGW48 hr
May 26, 2:37 PM MDTFlash Flood WatchGGW20 hr
May 27, 10:51 AM MDTFlash Flood WatchGGW23 hr
May 27, 2:54 PM MDTMesoscale DiscussionSPC96 min
May 27, 4:39 PM MDTTornado WatchSPC8 hr
May 27, 6:57 PM MDTMesoscale DiscussionSPC2 hr
May 27, 8:34 PM MDTSevere Thunderstorm WarningGGW26 min
May 27, 8:58 PM MDTSevere Thunderstorm WarningGGW47 min
May 27, 9:01 PM MDTTornado WarningGGW59 min
May 27, 9:25 PM MDTTornado WarningGGW50 min
May 27, 9:29 PM MDTSevere Thunderstorm WarningGGW61 min
May 27, 10:09 PM MDTMesoscale DiscussionSPC66 min
May 27, 10:55 PM MDTSevere Thunderstorm WarningGGW64 min
May 27, 11:42 PM MDTSevere Thunderstorm WarningGGW63 min
May 28, 12:24 AM MDTMesoscale DiscussionSPC66 min
May 28, 12:40 AM MDTSevere Thunderstorm WarningGGW65 min
May 28, 1:05 AM MDTSevere Thunderstorm WarningGGW55 min
May 28, 1:18 AM MDTSevere Thunderstorm WarningGGW57 min
May 28, 10:04 AM MDTFlash Flood WatchGGW18 hr
May 28, 7:36 PM MDTMesoscale DiscussionSPC84 min
May 28, 9:44 PM MDTSevere Thunderstorm WatchSPC7 hr
May 28, 11:28 PM MDTSevere Thunderstorm WarningGGW62 min
May 29, 1:05 AM MDTMesoscale DiscussionSPC85 min
May 29, 3:52 AM MDTLake Wind AdvisoryGGW17 hr
May 30, 3:41 AM MDTLake Wind AdvisoryGGW15 hr
Jun 2, 2:13 PM MDTLake Wind AdvisoryGGW31 hr
Jun 4, 2:36 PM MDTLake Wind AdvisoryGGW30 hr
Jun 7, 2:14 PM MDTLake Wind AdvisoryGGW31 hr
Jun 8, 9:49 PM MDTLake Wind AdvisoryGGW24 hr
Jun 15, 2:45 PM MDTHigh Wind WatchGGW37 hr
Jun 15, 2:48 PM MDTFlash Flood WatchGGW48 hr
Jun 16, 2:31 PM MDTMesoscale DiscussionSPC89 min
Jun 16, 5:34 PM MDTMesoscale DiscussionSPC86 min
Jun 16, 6:20 PM MDTTornado WatchSPC8 hr
Jun 16, 7:33 PM MDTSevere Thunderstorm WarningGGW57 min
Jun 16, 7:40 PM MDTSevere Thunderstorm WarningGGW65 min
Jun 16, 8:03 PM MDTSevere Thunderstorm WarningGGW42 min
Jun 16, 8:58 PM MDTSevere Thunderstorm WarningGGW62 min
Jun 17, 3:45 AM MDTHigh Wind WarningGGW30 hr
Jun 20, 2:29 PM MDTFlash Flood WatchGGW33 hr
Jun 20, 4:32 PM MDTSevere Thunderstorm WarningGGW34 min
Jun 21, 3:55 PM MDTTornado WatchSPC5 hr
Jun 21, 4:38 PM MDTSevere Thunderstorm WarningGGW52 min
Jun 21, 5:26 PM MDTSevere Thunderstorm WarningGGW64 min
Jun 21, 5:33 PM MDTTornado WarningGGW27 min
Jun 21, 5:57 PM MDTTornado WarningGGW33 min
Jun 21, 6:26 PM MDTSevere Thunderstorm WarningGGW64 min
Jun 24, 5:25 PM MDTMesoscale DiscussionSPC95 min
Jun 24, 6:16 PM MDTSevere Thunderstorm WarningGGW59 min
Jun 28, 2:40 PM MDTLake Wind AdvisoryGGW25 hr
Jun 29, 6:00 PM MDTMesoscale DiscussionSPC90 min
Jun 29, 8:26 PM MDTSevere Thunderstorm WarningGGW64 min
Jun 29, 8:31 PM MDTSevere Thunderstorm WarningGGW59 min
Jun 29, 8:39 PM MDTSevere Thunderstorm WarningGGW52 min
Jun 29, 9:52 PM MDTSevere Thunderstorm WarningGGW41 min
Jun 30, 3:54 PM MDTMesoscale DiscussionSPC66 min
Jun 30, 4:13 PM MDTSevere Thunderstorm WatchSPC7 hr
Jul 1, 1:37 PM MDTSevere Thunderstorm WatchSPC8 hr
Jul 1, 4:57 PM MDTMesoscale DiscussionSPC63 min
Jul 1, 8:28 PM MDTSevere Thunderstorm WarningGGW62 min
Jul 1, 8:59 PM MDTMesoscale DiscussionSPC91 min
Jul 1, 9:35 PM MDTSevere Thunderstorm WarningGGW55 min
Jul 1, 9:45 PM MDTSevere Thunderstorm WatchSPC5 hr
Jul 1, 10:08 PM MDTSevere Thunderstorm WarningGGW67 min
Jul 1, 10:14 PM MDTSevere Thunderstorm WarningGGW61 min
Jul 1, 10:26 PM MDTAreal Flood WarningGGW3 hr
Jul 1, 10:59 PM MDTSevere Thunderstorm WarningGGW61 min
Jul 2, 12:43 AM MDTMesoscale DiscussionSPC2 hr
Jul 2, 3:46 AM MDTLake Wind AdvisoryGGW17 hr
Jul 2, 1:39 PM MDTSevere Thunderstorm WatchSPC7 hr
Jul 2, 5:02 PM MDTMesoscale DiscussionSPC58 min
Jul 2, 9:35 PM MDTSevere Thunderstorm WarningGGW55 min
Jul 2, 9:51 PM MDTSevere Thunderstorm WarningGGW54 min
Jul 2, 10:12 PM MDTSevere Thunderstorm WarningGGW63 min
Jul 2, 10:15 PM MDTSevere Thunderstorm WarningGGW22 min
Jul 2, 10:46 PM MDTSevere Thunderstorm WarningGGW59 min
Jul 3, 12:09 AM MDTSevere Thunderstorm WarningGGW66 min
Jul 3, 12:22 AM MDTSevere Thunderstorm WarningGGW53 min
Jul 3, 12:32 AM MDTSevere Thunderstorm WarningGGW58 min
Jul 3, 12:43 AM MDTMesoscale DiscussionSPC3 hr
Jul 3, 1:09 AM MDTSevere Thunderstorm WarningGGW66 min
Jul 3, 1:16 AM MDTSevere Thunderstorm WarningGGW59 min
Jul 3, 2:02 AM MDTSevere Thunderstorm WarningGGW58 min
Jul 5, 3:53 AM MDTLake Wind AdvisoryGGW14 hr
Jul 10, 4:04 AM MDTLake Wind AdvisoryGGW17 hr
Jul 12, 1:03 PM MDTMesoscale DiscussionSPC87 min
Jul 12, 2:06 PM MDTSevere Thunderstorm WatchSPC7 hr
Jul 12, 2:36 PM MDTLake Wind AdvisoryGGW30 hr
Jul 12, 5:31 PM MDTMesoscale DiscussionSPC59 min
Jul 12, 5:46 PM MDTSevere Thunderstorm WarningGGW59 min
Jul 12, 6:28 PM MDTSevere Thunderstorm WarningGGW40 min
Jul 12, 7:03 PM MDTSpecial Weather StatementGGW57 min
Jul 12, 7:14 PM MDTMesoscale DiscussionSPC61 min
Jul 12, 7:25 PM MDTSevere Thunderstorm WarningGGW65 min
Jul 12, 7:58 PM MDTSpecial Weather StatementGGW62 min
Jul 14, 2:55 AM MDTLake Wind AdvisoryGGW18 hr
Jul 16, 3:16 PM MDTLake Wind AdvisoryGGW23 hr
Jul 23, 2:18 AM MDTSpecial Weather StatementGGW57 min
Jul 23, 3:10 AM MDTSpecial Weather StatementGGW65 min
Jul 26, 9:30 AM MDTLake Wind AdvisoryGGW27 hr
Jul 26, 4:15 PM MDTSevere Thunderstorm WatchSPC10 hr
Jul 28, 9:31 AM MDTLake Wind AdvisoryGGW8 hr
Jul 28, 8:27 PM MDTSevere Thunderstorm WarningGGW63 min
Jul 28, 9:25 PM MDTSevere Thunderstorm WarningGGW65 min
Jul 28, 9:42 PM MDTLake Wind AdvisoryGGW6 hr
Jul 29, 3:03 PM MDTMesoscale DiscussionSPC57 min
Jul 29, 3:38 PM MDTSevere Thunderstorm WatchSPC10 hr
Jul 29, 5:49 PM MDTMesoscale DiscussionSPC86 min
Jul 29, 6:28 PM MDTSevere Thunderstorm WarningGGW62 min
Jul 29, 7:15 PM MDTSevere Thunderstorm WarningGGW31 min
Jul 31, 12:01 PM MDTMesoscale DiscussionSPC89 min
Jul 31, 8:05 PM MDTSevere Thunderstorm WatchSPC6 hr
Jul 31, 8:32 PM MDTSevere Thunderstorm WarningGGW58 min
Jul 31, 9:43 PM MDTSpecial Weather StatementGGW47 min
Jul 31, 10:22 PM MDTSpecial Weather StatementGGW53 min
Aug 1, 12:49 AM MDTMesoscale DiscussionSPC56 min
Aug 1, 2:39 PM MDTSevere Thunderstorm WatchSPC7 hr
Aug 1, 5:37 PM MDTMesoscale DiscussionSPC113 min
Aug 1, 8:43 PM MDTMesoscale DiscussionSPC62 min
Aug 6, 3:03 PM MDTSevere Thunderstorm WatchSPC8 hr
Aug 6, 8:29 PM MDTSevere Thunderstorm WarningGGW61 min
Aug 6, 9:16 PM MDTTornado WarningGGW59 min
Aug 6, 9:24 PM MDTSevere Thunderstorm WarningGGW66 min
Aug 6, 9:50 PM MDTTornado WarningGGW25 min
Aug 6, 10:04 PM MDTSevere Thunderstorm WatchSPC5 hr
Aug 6, 10:13 PM MDTTornado WarningGGW32 min
Aug 6, 10:15 PM MDTSevere Thunderstorm WarningGGW60 min
Aug 6, 10:23 PM MDTSevere Thunderstorm WarningGGW67 min
Aug 6, 10:35 PM MDTAreal Flood AdvisoryGGW2 hr
Aug 6, 10:47 PM MDTSevere Thunderstorm WarningGGW58 min
Aug 9, 5:59 PM MDTSevere Thunderstorm WatchSPC7 hr
Aug 9, 8:02 PM MDTMesoscale DiscussionSPC58 min
Aug 9, 10:43 PM MDTMesoscale DiscussionSPC62 min
Aug 9, 11:21 PM MDTSevere Thunderstorm WarningGGW54 min
Aug 11, 2:59 PM MDTMesoscale DiscussionSPC2 hr
Aug 11, 4:50 PM MDTSevere Thunderstorm WatchSPC7 hr
Aug 11, 7:32 PM MDTMesoscale DiscussionSPC58 min
Aug 11, 10:16 PM MDTSevere Thunderstorm WarningGGW59 min
Aug 12, 2:56 PM MDTLake Wind AdvisoryGGW30 hr
Aug 12, 8:18 PM MDTSpecial Weather StatementGGW57 min
Aug 14, 11:54 AM MDTLake Wind AdvisoryGGW8 hr
Aug 21, 3:53 AM MDTLake Wind AdvisoryGGW11 hr
Aug 21, 5:53 PM MDTSevere Thunderstorm WarningGGW67 min
Aug 21, 6:53 PM MDTSevere Thunderstorm WarningGGW67 min
Aug 22, 3:17 PM MDTLake Wind AdvisoryGGW29 hr
Aug 24, 2:54 PM MDTFire Weather WatchGGW24 hr
Aug 25, 2:56 PM MDTRed Flag WarningGGW54 hr
Aug 26, 2:25 PM MDTLake Wind AdvisoryGGW31 hr
Sep 1, 3:02 PM MDTLake Wind AdvisoryGGW28 hr
Sep 4, 5:10 PM MDTMesoscale DiscussionSPC2 hr
Sep 4, 5:42 PM MDTSpecial Weather StatementGGW63 min
Sep 6, 8:51 AM MDTLake Wind AdvisoryGGW9 hr
Sep 7, 2:28 PM MDTLake Wind AdvisoryGGW36 hr
Sep 9, 2:14 PM MDTLake Wind AdvisoryGGW30 hr
Sep 9, 2:35 PM MDTSevere Thunderstorm WatchSPC8 hr
Sep 19, 1:45 PM MDTLake Wind AdvisoryGGW6 hr
Sep 20, 3:27 AM MDTLake Wind AdvisoryGGW17 hr
Sep 24, 3:03 AM MDTLake Wind AdvisoryGGW15 hr
Sep 28, 7:55 AM MDTLake Wind AdvisoryGGW11 hr
Oct 1, 2:23 PM MDTLake Wind AdvisoryGGW29 hr
Oct 4, 2:22 PM MDTLake Wind AdvisoryGGW29 hr
Oct 11, 3:36 AM MDTLake Wind AdvisoryGGW14 hr
Oct 12, 1:28 PM MDTLake Wind AdvisoryGGW6 hr
Oct 14, 2:35 PM MDTLake Wind AdvisoryGGW31 hr
Oct 24, 2:27 PM MDTLake Wind AdvisoryGGW3 days
Oct 25, 2:25 PM MDTWinter Weather AdvisoryGGW41 hr
Nov 1, 3:04 PM MDTLake Wind AdvisoryGGW27 hr
Nov 8, 6:29 PM MSTLake Wind AdvisoryGGW4 hr
Nov 15, 3:07 AM MSTWinter Storm WatchGGW12 hr
Nov 15, 7:46 AM MSTWinter Weather AdvisoryGGW4 hr
Nov 15, 3:20 PM MSTWinter Storm WarningGGW30 hr
Nov 16, 9:44 PM MSTWinter Weather AdvisoryGGW6 hr
Nov 17, 3:37 AM MSTLake Wind AdvisoryGGW48 hr
Nov 18, 8:18 AM MSTWinter Weather AdvisoryGGW6 hr
Nov 19, 3:57 AM MSTWinter Weather AdvisoryGGW48 hr
Nov 22, 2:57 PM MSTWinter Weather AdvisoryGGW61 hr
Nov 24, 2:50 PM MSTWind Chill AdvisoryGGW19 hr
Nov 28, 2:09 PM MSTWinter Weather AdvisoryGGW21 hr
Dec 2, 1:31 AM MSTDense Fog AdvisoryGGW12 hr
Dec 2, 3:08 AM MSTWinter Weather AdvisoryGGW33 hr
Dec 5, 7:40 PM MSTDense Fog AdvisoryGGW32 hr
Dec 9, 2:37 PM MSTWinter Weather AdvisoryGGW32 hr
Dec 10, 3:11 PM MSTWind Chill AdvisoryGGW18 hr
Dec 11, 3:38 AM MSTWinter Storm WatchGGW25 hr
Dec 11, 2:53 PM MSTWind Chill AdvisoryGGW19 hr
Dec 12, 4:48 AM MSTWinter Weather AdvisoryGGW18 hr
Dec 18, 3:33 PM MSTWinter Storm WatchGGW30 hr
Dec 19, 2:42 PM MSTWinter Storm WarningGGW27 hr
Dec 21, 9:22 PM MSTDense Fog AdvisoryGGW12 hr
Dec 24, 12:51 AM MSTDense Fog AdvisoryGGW32 hr
Dec 27, 3:37 PM MSTWinter Storm WatchGGW23 hr
Dec 27, 3:37 PM MSTWinter Weather AdvisoryGGW3 hr
Dec 28, 2:53 PM MSTWind Chill WatchGGW43 hr
Dec 28, 2:53 PM MSTWinter Storm WarningGGW24 hr
Dec 29, 2:23 PM MSTBlizzard WarningGGW13 hr
Dec 30, 3:38 AM MSTWinter Weather AdvisoryGGW13 hr
Dec 30, 10:03 AM MSTWind Chill AdvisoryGGW49 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 archive20092011

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.