Alert archive / New Mexico / Sierra County

Weather alerts in Sierra County, New Mexico, 2020

100 weather alerts in 2020, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Sierra County and its neighbors

Each county as a circle sized by its count in 2020. Tap one for its archive.

Alerts
100
Warnings
31
Watches
11
Advisories
29
Busiest month
June29 alerts
Busiest day
July 27, 20206 alerts

Over time

By month

Warning verification

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

Sierra County, 2020

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings11464%250%34 min
Flash flood warnings110%2100%4 min

Each office's whole area, 2020

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS El Paso, TX: tornado warnings020%
NWS El Paso, TX: severe thunderstorm warnings46687%3030%34 min
NWS El Paso, TX: flash flood warnings8188%2100%4 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 1, 2:43 PM MSTHigh Wind WatchEPZ23 hr
Feb 2, 1:17 PM MSTHigh Wind WarningEPZ34 hr
Feb 2, 1:17 PM MSTWind AdvisoryEPZ31 hr
Feb 10, 6:00 AM MSTWinter Weather AdvisoryEPZ51 hr
Feb 10, 8:38 PM MSTSpecial Weather StatementEPZ37 min
Feb 10, 8:44 PM MSTSpecial Weather StatementEPZ31 min
Feb 10, 10:27 PM MSTSpecial Weather StatementEPZ48 min
Feb 25, 1:55 AM MSTRed Flag WarningEPZ16 hr
Mar 13, 11:57 AM MDTSpecial Weather StatementEPZ48 min
Mar 18, 10:43 PM MDTSevere Thunderstorm WarningEPZ62 min
Mar 18, 11:37 PM MDTSevere Thunderstorm WarningEPZ53 min
Mar 22, 5:39 AM MDTWind AdvisoryEPZ40 hr
Mar 22, 5:40 AM MDTFire Weather WatchEPZ9 hr
Mar 22, 3:02 PM MDTRed Flag WarningEPZ29 hr
Mar 26, 2:55 PM MDTWind AdvisoryEPZ33 hr
Apr 2, 12:31 AM MDTRed Flag WarningEPZ17 hr
Apr 18, 3:34 AM MDTRed Flag WarningEPZ16 hr
Apr 21, 4:19 AM MDTRed Flag WarningEPZ17 hr
Apr 22, 2:56 AM MDTFire Weather WatchEPZ24 hr
Apr 23, 2:29 AM MDTRed Flag WarningEPZ18 hr
Apr 30, 3:00 PM MDTRed Flag WarningEPZ30 hr
May 5, 5:40 AM MDTFire Weather WatchEPZ33 hr
May 6, 2:51 PM MDTRed Flag WarningEPZ31 hr
May 11, 1:37 PM MDTSpecial Weather StatementEPZ38 min
May 11, 1:59 PM MDTSevere Thunderstorm WarningEPZ46 min
May 11, 2:36 PM MDTSpecial Weather StatementEPZ54 min
May 18, 3:28 AM MDTFire Weather WatchEPZ24 hr
May 19, 3:24 AM MDTRed Flag WarningEPZ17 hr
Jun 3, 6:58 PM MDTSpecial Weather StatementEPZ47 min
Jun 4, 2:43 AM MDTHeat AdvisoryEPZ53 hr
Jun 5, 12:33 PM MDTRed Flag WarningEPZ30 hr
Jun 5, 8:24 PM MDTSpecial Weather StatementEPZ81 min
Jun 5, 10:44 PM MDTSpecial Weather StatementEPZ46 min
Jun 6, 9:45 PM MDTFire Weather WatchEPZ5 hr
Jun 6, 9:45 PM MDTRed Flag WarningEPZ22 hr
Jun 7, 2:53 AM MDTRed Flag WarningEPZ41 hr
Jun 11, 4:04 PM MDTSpecial Weather StatementEPZ26 min
Jun 12, 3:30 PM MDTSpecial Weather StatementEPZ30 min
Jun 12, 4:12 PM MDTAreal Flood AdvisoryEPZ2 hr
Jun 14, 6:13 PM MDTSpecial Weather StatementEPZ47 min
Jun 15, 4:19 PM MDTSpecial Weather StatementEPZ41 min
Jun 23, 4:46 PM MDTSpecial Weather StatementEPZ44 min
Jun 23, 4:59 PM MDTSevere Thunderstorm WarningEPZ46 min
Jun 23, 5:46 PM MDTSevere Thunderstorm WarningEPZ59 min
Jun 23, 5:59 PM MDTSpecial Weather StatementEPZ46 min
Jun 24, 2:56 PM MDTMesoscale DiscussionSPC2 hr
Jun 24, 3:05 PM MDTSpecial Weather StatementEPZ40 min
Jun 24, 3:21 PM MDTSevere Thunderstorm WarningEPZ39 min
Jun 24, 3:59 PM MDTSpecial Weather StatementEPZ46 min
Jun 24, 4:11 PM MDTSevere Thunderstorm WarningEPZ49 min
Jun 26, 5:44 PM MDTDust Storm AdvisoryEPZ91 min
Jun 27, 1:35 PM MDTRed Flag WarningEPZ30 hr
Jun 27, 4:58 PM MDTDust Storm WarningEPZ62 min
Jun 28, 2:37 AM MDTFire Weather WatchEPZ11 hr
Jun 28, 1:40 PM MDTRed Flag WarningEPZ30 hr
Jun 29, 2:35 AM MDTFire Weather WatchEPZ27 hr
Jun 30, 5:29 AM MDTRed Flag WarningEPZ9 hr
Jul 7, 12:49 PM MDTHeat AdvisoryEPZ64 hr
Jul 10, 5:09 AM MDTHeat AdvisoryEPZ5 days
Jul 13, 5:26 PM MDTSpecial Weather StatementEPZ49 min
Jul 14, 1:47 PM MDTSpecial Weather StatementEPZ43 min
Jul 19, 4:34 PM MDTSpecial Weather StatementEPZ41 min
Jul 19, 5:11 PM MDTAreal Flood AdvisoryEPZ3 hr
Jul 21, 2:34 PM MDTAreal Flood AdvisoryEPZ3 hr
Jul 23, 8:00 PM MDTSpecial Weather StatementEPZ30 min
Jul 23, 8:39 PM MDTAreal Flood AdvisoryEPZ3 hr
Jul 24, 10:56 AM MDTFlash Flood WatchEPZ39 hr
Jul 24, 8:28 PM MDTSpecial Weather StatementEPZ47 min
Jul 26, 3:52 AM MDTFlash Flood WatchEPZ20 hr
Jul 26, 5:08 PM MDTSpecial Weather StatementEPZ37 min
Jul 26, 5:13 PM MDTAreal Flood AdvisoryEPZ3 hr
Jul 26, 5:48 PM MDTAreal Flood AdvisoryEPZ3 hr
Jul 26, 5:59 PM MDTSpecial Weather StatementEPZ61 min
Jul 26, 6:05 PM MDTFlash Flood Warning Considerable damage threatEPZ5 hr
Jul 26, 6:40 PM MDTAreal Flood AdvisoryEPZ3 hr
Jul 26, 6:50 PM MDTSpecial Weather StatementEPZ40 min
Jul 26, 6:53 PM MDTAreal Flood AdvisoryEPZ3 hr
Jul 26, 7:25 PM MDTAreal Flood AdvisoryEPZ3 hr
Jul 26, 9:07 PM MDTAreal Flood AdvisoryEPZ3 hr
Jul 31, 8:44 PM MDTSevere Thunderstorm WarningEPZ46 min
Aug 1, 2:13 PM MDTMesoscale DiscussionSPC2 hr
Aug 1, 7:52 PM MDTSevere Thunderstorm WarningEPZ38 min
Aug 2, 2:43 PM MDTAreal Flood AdvisoryEPZ4 hr
Aug 2, 3:38 PM MDTAreal Flood AdvisoryEPZ5 hr
Aug 3, 4:21 PM MDTAreal Flood AdvisoryEPZ4 hr
Aug 6, 2:04 PM MDTAreal Flood AdvisoryEPZ116 min
Aug 6, 2:40 PM MDTSpecial Weather StatementEPZ50 min
Aug 15, 4:36 PM MDTSpecial Weather StatementEPZ39 min
Aug 16, 8:34 PM MDTSevere Thunderstorm WarningEPZ41 min
Aug 16, 8:36 PM MDTSevere Thunderstorm WarningEPZ39 min
Sep 8, 3:08 PM MDTAreal Flood AdvisoryEPZ112 min
Sep 8, 11:16 PM MDTAreal Flood AdvisoryEPZ3 hr
Sep 9, 2:48 AM MDTAreal Flood AdvisoryEPZ3 hr
Sep 9, 3:12 AM MDTAreal Flood AdvisoryEPZ3 hr
Oct 25, 5:32 AM MDTRed Flag WarningEPZ14 hr
Oct 25, 2:29 PM MDTWinter Storm WatchEPZ15 hr
Oct 26, 5:36 AM MDTWinter Weather AdvisoryEPZ48 hr
Oct 26, 3:33 PM MDTWinter Storm WarningEPZ38 hr
Nov 7, 6:22 AM MSTWind AdvisoryEPZ23 hr
Nov 8, 5:02 AM MSTWind AdvisoryEPZ36 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 archive20192021

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.