Alert archive / Colorado / Morgan County

Weather alerts in Morgan County, Colorado, 2013

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

Morgan County and its neighbors

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

Alerts
143
Warnings
59
Watches
22
Advisories
20
Busiest month
June40 alerts
Busiest day
August 3, 201312 alerts

Over time

By month

Warning verification

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

2 of 13 tornado warnings covering Morgan County in 2013 had a tornado report inside them; 2 of 3 tornado reports fell inside a warning, on average 10 minutes after it went out.

Morgan County, 2013

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings13285%367%10 min
Severe thunderstorm warnings27774%863%17 min
Flash flood warnings2150%0

Each office's whole area, 2013

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Denver/Boulder, CO: tornado warnings61985%1675%18 min
NWS Denver/Boulder, CO: severe thunderstorm warnings2276571%17361%18 min
NWS Denver/Boulder, CO: flash flood warnings851978%5082%148 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
Feb 9, 5:32 AM MSTBlizzard WarningBOU29 hr
Feb 19, 4:19 AM MSTWinter Storm WatchBOU30 hr
Feb 20, 10:14 AM MSTWinter Storm WarningBOU31 hr
Feb 22, 3:27 PM MSTWinter Storm WatchBOU24 hr
Feb 23, 3:41 PM MSTWinter Storm WarningBOU29 hr
Feb 26, 5:55 PM MSTWinter Weather AdvisoryBOU10 hr
Mar 7, 4:21 AM MSTWinter Storm WatchBOU24 hr
Mar 8, 4:14 AM MSTWinter Storm WarningBOU37 hr
Mar 8, 11:30 AM MSTBlizzard WarningBOU36 hr
Mar 9, 6:33 AM MSTMesoscale DiscussionSPC4 hr
Mar 21, 4:03 PM MDTWinter Storm WatchBOU14 hr
Mar 22, 6:20 AM MDTWinter Storm WarningBOU36 hr
Apr 7, 4:15 AM MDTWinter Storm WatchBOU36 hr
Apr 8, 11:19 AM MDTWinter Storm WarningBOU27 hr
Apr 8, 4:26 PM MDTWinter Weather AdvisoryBOU35 hr
Apr 8, 7:03 PM MDTSevere Thunderstorm WarningBOU27 min
Apr 8, 7:34 PM MDTTornado WarningBOU26 min
Apr 8, 7:43 PM MDTMesoscale DiscussionSPC62 min
Apr 8, 7:59 PM MDTTornado WarningBOU46 min
Apr 14, 5:15 AM MDTWinter Storm WatchBOU26 hr
Apr 15, 4:51 AM MDTWinter Weather AdvisoryBOU23 hr
Apr 16, 3:52 PM MDTBlizzard WatchBOU16 hr
Apr 16, 3:52 PM MDTWinter Weather AdvisoryBOU35 hr
Apr 22, 5:46 AM MDTWinter Weather AdvisoryBOU27 hr
May 16, 2:12 PM MDTMesoscale DiscussionSPC93 min
May 24, 1:57 PM MDTMesoscale DiscussionSPC3 hr
May 25, 2:27 PM MDTMesoscale DiscussionSPC93 min
May 26, 2:49 PM MDTMesoscale DiscussionSPC56 min
May 27, 1:00 PM MDTMesoscale DiscussionSPC60 min
May 28, 2:08 PM MDTMesoscale DiscussionSPC2 hr
May 28, 2:51 PM MDTSevere Thunderstorm WatchSPC9 hr
May 28, 5:05 PM MDTMesoscale DiscussionSPC115 min
May 28, 6:52 PM MDTMesoscale DiscussionSPC113 min
Jun 13, 1:14 PM MDTMesoscale DiscussionSPC91 min
Jun 13, 4:04 PM MDTSevere Thunderstorm WatchSPC4 hr
Jun 13, 5:00 PM MDTSpecial Weather StatementBOU45 min
Jun 13, 5:37 PM MDTSevere Thunderstorm WarningBOU53 min
Jun 13, 6:22 PM MDTAreal Flood AdvisoryBOU3 hr
Jun 13, 6:46 PM MDTMesoscale DiscussionSPC59 min
Jun 15, 1:53 PM MDTMesoscale DiscussionSPC97 min
Jun 15, 2:34 PM MDTSevere Thunderstorm WatchSPC8 hr
Jun 15, 5:57 PM MDTMesoscale DiscussionSPC63 min
Jun 15, 8:03 PM MDTSpecial Weather StatementBOU42 min
Jun 15, 8:57 PM MDTSevere Thunderstorm WarningBOU33 min
Jun 16, 1:28 PM MDTMesoscale DiscussionSPC92 min
Jun 17, 1:38 PM MDTMesoscale DiscussionSPC97 min
Jun 17, 2:21 PM MDTSevere Thunderstorm WatchSPC9 hr
Jun 17, 4:57 PM MDTSevere Thunderstorm WarningBOU33 min
Jun 17, 5:06 PM MDTTornado WarningBOU24 min
Jun 17, 5:09 PM MDTMesoscale DiscussionSPC66 min
Jun 17, 5:26 PM MDTTornado WarningBOU34 min
Jun 17, 5:28 PM MDTSevere Thunderstorm WarningBOU32 min
Jun 17, 5:52 PM MDTTornado WarningBOU38 min
Jun 18, 1:07 PM MDTMesoscale DiscussionSPC113 min
Jun 18, 1:53 PM MDTSevere Thunderstorm WatchSPC7 hr
Jun 18, 3:09 PM MDTTornado WarningBOU36 min
Jun 18, 5:11 PM MDTMesoscale DiscussionSPC94 min
Jun 18, 7:52 PM MDTMesoscale DiscussionSPC83 min
Jun 22, 12:11 PM MDTMesoscale DiscussionSPC2 hr
Jun 22, 4:00 PM MDTMesoscale DiscussionSPC90 min
Jun 22, 4:18 PM MDTTornado WatchSPC7 hr
Jun 22, 4:31 PM MDTSevere Thunderstorm WarningBOU29 min
Jun 22, 4:59 PM MDTSevere Thunderstorm WarningBOU31 min
Jun 22, 5:40 PM MDTTornado WarningBOU35 min
Jun 23, 3:48 PM MDTMesoscale DiscussionSPC87 min
Jun 23, 4:40 PM MDTSevere Thunderstorm WatchSPC7 hr
Jun 23, 7:19 PM MDTMesoscale DiscussionSPC56 min
Jun 23, 10:14 PM MDTSevere Thunderstorm WarningBOU46 min
Jun 28, 1:54 PM MDTMesoscale DiscussionSPC3 hr
Jun 28, 9:22 PM MDTSevere Thunderstorm WarningBOU38 min
Jun 28, 9:26 PM MDTSevere Thunderstorm WarningBOU49 min
Jun 28, 10:03 PM MDTSevere Thunderstorm WarningBOU42 min
Jun 28, 10:12 PM MDTSevere Thunderstorm WarningBOU48 min
Jul 7, 4:12 PM MDTMesoscale DiscussionSPC2 hr
Jul 7, 6:28 PM MDTSevere Thunderstorm WarningBOU47 min
Jul 10, 1:09 PM MDTMesoscale DiscussionSPC66 min
Jul 10, 1:29 PM MDTSevere Thunderstorm WatchSPC10 hr
Jul 10, 3:54 PM MDTSevere Thunderstorm WarningBOU51 min
Jul 12, 6:17 PM MDTSevere Thunderstorm WarningBOU28 min
Jul 20, 4:03 PM MDTSevere Thunderstorm WatchSPC6 hr
Jul 20, 6:06 PM MDTSevere Thunderstorm WarningBOU24 min
Jul 20, 6:28 PM MDTSevere Thunderstorm WarningBOU32 min
Jul 20, 6:31 PM MDTSevere Thunderstorm WarningBOU29 min
Jul 20, 6:53 PM MDTSevere Thunderstorm WarningBOU37 min
Jul 20, 7:12 PM MDTAreal Flood AdvisoryBOU93 min
Jul 20, 7:23 PM MDTMesoscale DiscussionSPC97 min
Jul 24, 1:43 PM MDTSevere Thunderstorm WatchSPC7 hr
Jul 24, 5:37 PM MDTMesoscale DiscussionSPC83 min
Jul 26, 1:21 PM MDTMesoscale DiscussionSPC114 min
Jul 26, 3:11 PM MDTSevere Thunderstorm WatchSPC6 hr
Jul 26, 6:31 PM MDTSevere Thunderstorm WarningBOU44 min
Jul 26, 7:17 PM MDTSevere Thunderstorm WarningBOU28 min
Jul 26, 7:18 PM MDTMesoscale DiscussionSPC87 min
Jul 28, 4:20 PM MDTMesoscale DiscussionSPC2 hr
Aug 1, 4:06 PM MDTMesoscale DiscussionSPC54 min
Aug 1, 4:09 PM MDTSevere Thunderstorm WatchSPC5 hr
Aug 2, 10:05 PM MDTSpecial Weather StatementBOU40 min
Aug 3, 1:35 PM MDTSevere Thunderstorm WarningBOU40 min
Aug 3, 1:50 PM MDTMesoscale DiscussionSPC85 min
Aug 3, 1:53 PM MDTTornado WarningBOU37 min
Aug 3, 2:11 PM MDTTornado WarningBOU34 min
Aug 3, 2:15 PM MDTFlash Flood WarningBOU3 hr
Aug 3, 2:28 PM MDTTornado WarningBOU32 min
Aug 3, 2:35 PM MDTTornado WatchSPC6 hr
Aug 3, 2:41 PM MDTTornado WarningBOU34 min
Aug 3, 3:16 PM MDTTornado WarningBOU29 min
Aug 3, 5:21 PM MDTMesoscale DiscussionSPC54 min
Aug 3, 5:45 PM MDTTornado WarningBOU45 min
Aug 10, 9:10 PM MDTSevere Thunderstorm WarningBOU50 min
Aug 12, 2:35 PM MDTMesoscale DiscussionSPC2 hr
Aug 13, 2:05 PM MDTMesoscale DiscussionSPC115 min
Aug 14, 8:29 PM MDTSevere Thunderstorm WarningBOU31 min
Aug 14, 9:00 PM MDTSevere Thunderstorm WarningBOU45 min
Aug 18, 5:33 PM MDTSevere Thunderstorm WarningBOU27 min
Aug 18, 6:38 PM MDTAreal Flood AdvisoryBOU3 hr
Sep 9, 4:09 PM MDTMesoscale DiscussionSPC3 hr
Sep 12, 6:09 AM MDTRiver Flood WarningBOU6 days
Sep 12, 6:09 AM MDTRiver Flood WarningBOU8 days
Sep 14, 7:47 PM MDTFlash Flood WarningBOU3 hr
Sep 15, 9:10 AM MDTAreal Flood WarningBOU12 hr
Sep 17, 3:40 PM MDTRiver Flood WarningBOU5 days
Sep 22, 4:10 PM MDTMesoscale DiscussionSPC2 hr
Sep 22, 7:20 PM MDTSevere Thunderstorm WarningBOU40 min
Sep 23, 10:22 AM MDTRiver Flood AdvisoryBOU30 hr
Sep 23, 10:22 AM MDTRiver Flood AdvisoryBOU30 hr
Sep 23, 12:02 PM MDTAreal Flood WarningBOU6 hr
Sep 23, 12:45 PM MDTAreal Flood AdvisoryBOU4 hr
Sep 23, 5:59 PM MDTAreal Flood AdvisoryBOU6 hr
Sep 23, 6:00 PM MDTRiver Flood AdvisoryBOU24 hr
Sep 23, 6:00 PM MDTRiver Flood AdvisoryBOU24 hr
Sep 27, 4:13 AM MDTFrost AdvisoryBOU28 hr
Oct 3, 10:27 AM MDTFreeze WatchBOU20 hr
Oct 3, 10:27 AM MDTHigh Wind WatchBOU5 hr
Oct 3, 2:57 PM MDTHigh Wind WarningBOU29 hr
Oct 4, 6:06 AM MDTFreeze WarningBOU27 hr
Oct 5, 6:05 PM MDTFreeze WarningBOU15 hr
Oct 14, 3:44 PM MDTFreeze WarningBOU17 hr
Oct 15, 9:05 AM MDTFreeze WarningBOU24 hr
Oct 16, 3:42 PM MDTWinter Weather AdvisoryBOU41 hr
Oct 21, 2:05 AM MDTDense Fog AdvisoryBOU7 hr
Oct 29, 8:13 AM MDTDense Fog AdvisoryBOU3 hr
Nov 20, 3:07 PM MSTWinter Weather AdvisoryBOU25 hr
Dec 21, 5:15 AM MSTDense Fog AdvisoryBOU5 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.