Alert archive / Colorado / Alamosa County

Weather alerts in Alamosa County, Colorado, 2015

84 weather alerts in 2015, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Alamosa County and its neighbors

Each county as a circle sized by its count in 2015. Tap one for its archive.

Alerts
84
Warnings
31
Watches
25
Advisories
18
Busiest month
April21 alerts
Busiest day
April 4, 20154 alerts

Over time

By month

Warning verification

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

Alamosa County, 2015

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings10100%10%
Flash flood warnings00

Each office's whole area, 2015

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Pueblo, CO: tornado warnings381074%1471%19 min
NWS Pueblo, CO: severe thunderstorm warnings2586376%13170%19 min
NWS Pueblo, CO: flash flood warnings47981%1191%33 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 10, 8:37 PM MSTDense Fog AdvisoryPUB12 hr
Jan 20, 3:50 PM MSTWinter Weather AdvisoryPUB35 hr
Jan 29, 3:08 PM MSTWinter Weather AdvisoryPUB61 hr
Feb 9, 2:47 PM MSTWinter Storm WatchPUB13 hr
Feb 10, 4:14 AM MSTWinter Storm WarningPUB29 hr
Feb 10, 4:14 AM MSTWinter Weather AdvisoryPUB31 hr
Feb 15, 4:15 AM MSTWinter Storm WatchPUB9 hr
Feb 15, 4:15 AM MSTWinter Weather AdvisoryPUB43 hr
Feb 15, 1:11 PM MSTWinter Storm WarningPUB34 hr
Feb 19, 2:53 PM MSTWinter Storm WatchPUB24 hr
Feb 20, 3:14 PM MSTWinter Storm WarningPUB3 days
Feb 21, 4:18 AM MSTWinter Weather AdvisoryPUB59 hr
Feb 24, 8:19 PM MSTWinter Storm WatchPUB8 hr
Feb 25, 4:10 AM MSTWinter Storm WarningPUB49 hr
Feb 26, 3:22 PM MSTWinter Storm WarningPUB6 days
Feb 26, 3:22 PM MSTWinter Weather AdvisoryPUB6 days
Mar 17, 2:54 PM MDTWinter Storm WatchPUB13 hr
Mar 18, 4:16 AM MDTWinter Storm WarningPUB47 hr
Mar 18, 4:16 AM MDTWinter Weather AdvisoryPUB47 hr
Mar 23, 3:46 AM MDTRed Flag WarningPUB15 hr
Mar 23, 3:04 PM MDTRed Flag WarningPUB28 hr
Mar 31, 3:14 AM MDTFire Weather WatchPUB10 hr
Mar 31, 1:00 PM MDTRed Flag WarningPUB30 hr
Apr 1, 3:47 AM MDTFire Weather WatchPUB9 hr
Apr 1, 12:50 PM MDTRed Flag WarningPUB31 hr
Apr 4, 4:04 AM MDTFire Weather WatchPUB24 hr
Apr 4, 4:04 AM MDTFire Weather WatchPUB35 hr
Apr 4, 4:04 AM MDTRed Flag WarningPUB16 hr
Apr 4, 3:07 PM MDTRed Flag WarningPUB29 hr
Apr 5, 2:53 PM MDTFire Weather WatchPUB24 hr
Apr 5, 2:53 PM MDTRed Flag WarningPUB30 hr
Apr 6, 3:00 PM MDTFire Weather WatchPUB13 hr
Apr 6, 3:00 PM MDTRed Flag WarningPUB29 hr
Apr 7, 4:03 AM MDTRed Flag WarningPUB40 hr
Apr 13, 12:01 PM MDTFire Weather WatchPUB3 hr
Apr 13, 3:00 PM MDTFire Weather WatchPUB24 hr
Apr 13, 3:00 PM MDTRed Flag WarningPUB29 hr
Apr 14, 3:25 PM MDTRed Flag WarningPUB29 hr
Apr 15, 3:52 AM MDTWinter Storm WatchPUB25 hr
Apr 16, 3:54 AM MDTRed Flag WarningPUB12 hr
Apr 16, 4:26 AM MDTWinter Storm WarningPUB48 hr
Apr 16, 4:26 AM MDTWinter Weather AdvisoryPUB68 hr
Apr 25, 3:56 AM MDTWinter Storm WatchPUB24 hr
Apr 26, 4:22 AM MDTWinter Storm WarningPUB34 hr
May 9, 5:22 AM MDTWinter Weather AdvisoryPUB25 hr
May 10, 10:09 AM MDTWinter Weather AdvisoryPUB18 hr
May 17, 3:15 PM MDTWinter Storm WatchPUB13 hr
May 18, 4:17 AM MDTWinter Storm WarningPUB32 hr
Jun 6, 11:34 PM MDTFlood WatchPUB4 days
Jun 10, 11:50 AM MDTFlash Flood WatchPUB7 days
Jun 27, 4:13 PM MDTSpecial Weather StatementPUB47 min
Jun 27, 6:34 PM MDTSpecial Weather StatementPUB26 min
Jun 28, 3:03 PM MDTSevere Thunderstorm WarningPUB42 min
Jul 1, 4:30 PM MDTSpecial Weather StatementPUB60 min
Jul 1, 5:14 PM MDTSpecial Weather StatementPUB61 min
Jul 2, 4:38 PM MDTSpecial Weather StatementPUB52 min
Jul 2, 5:46 PM MDTSpecial Weather StatementPUB44 min
Jul 3, 12:59 PM MDTMesoscale DiscussionSPC3 hr
Jul 6, 7:13 PM MDTSpecial Weather StatementPUB47 min
Aug 2, 4:06 AM MDTFlash Flood WatchPUB19 hr
Aug 3, 3:32 PM MDTSpecial Weather StatementPUB43 min
Sep 29, 2:14 PM MDTMesoscale DiscussionSPC61 min
Oct 12, 3:58 AM MDTFrost AdvisoryPUB29 hr
Oct 13, 3:55 AM MDTFreeze WatchPUB11 hr
Oct 13, 2:48 PM MDTFreeze WarningPUB18 hr
Oct 14, 4:01 AM MDTFreeze WarningPUB29 hr
Oct 15, 3:42 AM MDTFrost AdvisoryPUB29 hr
Oct 20, 2:49 PM MDTWinter Weather AdvisoryPUB51 hr
Oct 22, 4:01 AM MDTFreeze WatchPUB8 hr
Oct 22, 11:51 AM MDTFreeze WarningPUB20 hr
Oct 23, 1:52 PM MDTFreeze WarningPUB19 hr
Oct 24, 3:55 AM MDTFreeze WatchPUB6 hr
Oct 24, 10:22 AM MDTFreeze WarningPUB23 hr
Nov 15, 5:00 AM MSTWinter Storm WatchPUB24 hr
Nov 15, 5:00 AM MSTWinter Storm WarningPUB54 hr
Nov 15, 2:59 PM MSTWinter Weather AdvisoryPUB50 hr
Nov 25, 11:04 AM MSTWinter Weather AdvisoryPUB70 hr
Nov 26, 1:34 PM MSTWinter Storm WarningPUB18 hr
Dec 10, 3:18 PM MSTWinter Storm WatchPUB13 hr
Dec 11, 4:16 AM MSTWinter Weather AdvisoryPUB61 hr
Dec 12, 5:08 AM MSTWinter Storm WarningPUB37 hr
Dec 19, 4:25 AM MSTHigh Wind WatchPUB24 hr
Dec 19, 8:17 PM MSTHigh Wind WarningPUB8 hr
Dec 23, 3:26 PM MSTWinter Weather AdvisoryPUB55 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 archive20142016

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.