Alert archive / Colorado / Cheyenne County

Weather alerts in Cheyenne County, Colorado, 2016

289 weather alerts in 2016, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Cheyenne County and its neighbors

Each county as a circle sized by its count in 2016. Tap one for its archive.

Alerts
289
Warnings
119
Watches
32
Advisories
21
Busiest month
July80 alerts
Busiest day
April 15, 201615 alerts

Over time

By month

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 2, 11:41 AM MSTRed Flag WarningGLD5 hr
Jan 6, 6:14 PM MSTDense Fog AdvisoryGLD16 hr
Jan 7, 10:04 AM MSTDense Fog AdvisoryGLD3 hr
Jan 8, 8:29 AM MSTWinter Weather AdvisoryGLD3 hr
Jan 17, 3:10 AM MSTFreezing Fog AdvisoryGLD6 hr
Jan 30, 2:03 PM MSTWinter Storm WatchGLD23 hr
Jan 31, 12:56 PM MSTWinter Storm WarningGLD52 hr
Feb 1, 1:45 PM MSTMesoscale DiscussionSPC4 hr
Feb 3, 2:07 PM MSTWind Chill AdvisoryGLD18 hr
Feb 13, 7:21 AM MSTFreezing Fog AdvisoryGLD4 hr
Feb 16, 2:54 AM MSTFire Weather WatchGLD34 hr
Feb 17, 1:15 PM MSTRed Flag WarningGLD28 hr
Feb 18, 9:38 PM MSTHigh Wind WarningGLD5 hr
Feb 24, 8:41 AM MSTRed Flag WarningGLD7 hr
Mar 1, 2:28 AM MSTFire Weather WatchGLD12 hr
Mar 1, 2:43 PM MSTRed Flag WarningGLD28 hr
Mar 5, 2:30 AM MSTFire Weather WatchGLD48 hr
Mar 5, 2:30 AM MSTRed Flag WarningGLD16 hr
Mar 6, 12:36 PM MSTRed Flag WarningGLD29 hr
Mar 13, 9:04 AM MDTRed Flag WarningGLD9 hr
Mar 13, 2:54 PM MDTFire Weather WatchGLD12 hr
Mar 13, 2:54 PM MDTFire Weather WatchGLD24 hr
Mar 13, 2:54 PM MDTFire Weather WatchGLD59 hr
Mar 14, 3:00 AM MDTRed Flag WarningGLD16 hr
Mar 14, 2:30 PM MDTRed Flag WarningGLD29 hr
Mar 16, 2:00 AM MDTRed Flag WarningGLD16 hr
Mar 21, 3:05 AM MDTFire Weather WatchGLD21 hr
Mar 22, 12:27 AM MDTRed Flag WarningGLD18 hr
Mar 22, 3:05 PM MDTHigh Wind WarningGLD33 hr
Mar 27, 2:04 PM MDTFire Weather WatchGLD24 hr
Mar 28, 1:41 PM MDTRed Flag WarningGLD28 hr
Apr 5, 12:27 PM MDTMesoscale DiscussionSPC3 hr
Apr 5, 6:27 PM MDTBlowing Dust AdvisoryGLD3 hr
Apr 6, 8:12 AM MDTRed Flag WarningGLD11 hr
Apr 13, 1:51 PM MDTRed Flag WarningGLD29 hr
Apr 15, 1:07 PM MDTMesoscale DiscussionSPC53 min
Apr 15, 1:51 PM MDTSevere Thunderstorm WatchSPC7 hr
Apr 15, 2:24 PM MDTSpecial Weather StatementGLD51 min
Apr 15, 2:49 PM MDTSevere Thunderstorm WarningGLD41 min
Apr 15, 3:01 PM MDTSevere Thunderstorm WarningGLD44 min
Apr 15, 3:21 PM MDTTornado WarningGLD24 min
Apr 15, 3:43 PM MDTSevere Thunderstorm WarningGLD32 min
Apr 15, 4:01 PM MDTFlash Flood WarningGLD3 hr
Apr 15, 4:08 PM MDTSevere Thunderstorm WarningGLD37 min
Apr 15, 4:16 PM MDTFlash Flood WarningGLD3 hr
Apr 15, 4:25 PM MDTSevere Thunderstorm WarningGLD50 min
Apr 15, 4:26 PM MDTSevere Thunderstorm WarningGLD49 min
Apr 15, 4:40 PM MDTSevere Thunderstorm WarningGLD50 min
Apr 15, 5:29 PM MDTSevere Thunderstorm WarningGLD46 min
Apr 15, 5:43 PM MDTSpecial Weather StatementGLD17 min
Apr 15, 6:58 PM MDTFlash Flood WarningGLD9 hr
Apr 15, 7:20 PM MDTMesoscale DiscussionSPC85 min
Apr 16, 4:04 AM MDTAreal Flood WarningGLD6 hr
Apr 16, 4:49 AM MDTFlood WatchGLD22 hr
Apr 19, 10:48 PM MDTDense Fog AdvisoryGLD10 hr
Apr 23, 7:50 PM MDTSpecial Weather StatementGLD25 min
Apr 23, 8:15 PM MDTSpecial Weather StatementGLD30 min
Apr 23, 8:28 PM MDTMesoscale DiscussionSPC92 min
May 7, 12:31 PM MDTTornado WatchSPC8 hr
May 7, 1:57 PM MDTSevere Thunderstorm WarningGLD48 min
May 7, 2:26 PM MDTSevere Thunderstorm WarningGLD49 min
May 10, 2:18 PM MDTMesoscale DiscussionSPC117 min
May 21, 2:07 PM MDTTornado WatchSPC8 hr
May 21, 4:34 PM MDTMesoscale DiscussionSPC116 min
May 26, 12:04 PM MDTTornado WatchSPC7 hr
May 26, 2:23 PM MDTMesoscale DiscussionSPC2 hr
May 26, 4:49 PM MDTSevere Thunderstorm WarningGLD41 min
May 26, 5:08 PM MDTTornado Warning Tornado observedConsiderable damage threatGLD15 min
May 26, 5:20 PM MDTSevere Thunderstorm WarningGLD40 min
May 26, 7:45 PM MDTHigh Wind WarningGLD73 min
May 27, 11:03 AM MDTSpecial Weather StatementGLD57 min
May 27, 12:12 PM MDTSevere Thunderstorm WarningGLD12 min
May 27, 12:34 PM MDTSevere Thunderstorm WarningGLD27 min
May 27, 12:51 PM MDTSevere Thunderstorm WarningGLD21 min
May 27, 2:04 PM MDTSevere Thunderstorm WarningGLD26 min
May 27, 3:00 PM MDTTornado WarningGLD30 min
May 27, 3:23 PM MDTTornado WarningGLD21 min
May 30, 1:56 PM MDTMesoscale DiscussionSPC64 min
May 30, 2:19 PM MDTSevere Thunderstorm WatchSPC7 hr
May 30, 4:20 PM MDTSevere Thunderstorm WarningGLD40 min
May 30, 4:57 PM MDTSevere Thunderstorm WarningGLD48 min
May 30, 6:02 PM MDTSevere Thunderstorm WarningGLD43 min
May 30, 6:05 PM MDTMesoscale DiscussionSPC85 min
May 31, 8:41 PM MDTSpecial Weather StatementGLD34 min
Jun 6, 12:33 PM MDTMesoscale DiscussionSPC2 hr
Jun 6, 12:40 PM MDTSpecial Weather StatementGLD35 min
Jun 6, 12:47 PM MDTSevere Thunderstorm WarningGLD28 min
Jun 6, 1:02 PM MDTSpecial Weather StatementGLD28 min
Jun 6, 1:11 PM MDTSevere Thunderstorm WarningGLD34 min
Jun 6, 1:35 PM MDTSevere Thunderstorm WarningGLD25 min
Jun 6, 1:43 PM MDTSevere Thunderstorm WarningGLD15 min
Jun 6, 1:55 PM MDTSevere Thunderstorm WarningGLD35 min
Jun 6, 2:20 PM MDTTornado WarningGLD25 min
Jun 6, 2:34 PM MDTSevere Thunderstorm WarningGLD56 min
Jun 7, 1:37 PM MDTMesoscale DiscussionSPC2 hr
Jun 11, 2:56 PM MDTSpecial Weather StatementGLD19 min
Jun 11, 3:15 PM MDTSpecial Weather StatementGLD15 min
Jun 12, 1:29 PM MDTFlash Flood WatchGLD14 hr
Jun 12, 4:30 PM MDTSpecial Weather StatementGLD30 min
Jun 12, 4:57 PM MDTSpecial Weather StatementGLD33 min
Jun 12, 5:41 PM MDTMesoscale DiscussionSPC2 hr
Jun 12, 5:47 PM MDTSpecial Weather StatementGLD13 min
Jun 12, 5:57 PM MDTSevere Thunderstorm WarningGLD33 min
Jun 12, 6:15 PM MDTSpecial Weather StatementGLD15 min
Jun 12, 6:27 PM MDTSevere Thunderstorm WarningGLD37 min
Jun 13, 11:18 AM MDTMesoscale DiscussionSPC117 min
Jun 13, 1:27 PM MDTTornado WatchSPC8 hr
Jun 13, 4:16 PM MDTMesoscale DiscussionSPC89 min
Jun 13, 6:53 PM MDTMesoscale DiscussionSPC97 min
Jun 13, 10:26 PM MDTMesoscale DiscussionSPC2 hr
Jun 23, 4:43 PM MDTMesoscale DiscussionSPC2 hr
Jun 23, 6:21 PM MDTSevere Thunderstorm WatchSPC7 hr
Jun 23, 8:29 PM MDTMesoscale DiscussionSPC2 hr
Jun 24, 7:28 PM MDTSpecial Weather StatementGLD17 min
Jun 24, 7:47 PM MDTSpecial Weather StatementGLD13 min
Jun 27, 1:50 PM MDTSevere Thunderstorm WatchSPC6 hr
Jun 27, 2:06 PM MDTSevere Thunderstorm WarningGLD39 min
Jun 27, 2:47 PM MDTSevere Thunderstorm WarningGLD43 min
Jun 27, 3:18 PM MDTSpecial Weather StatementGLD27 min
Jun 27, 3:39 PM MDTMesoscale DiscussionSPC96 min
Jun 27, 4:48 PM MDTSpecial Weather StatementPUB27 min
Jun 28, 7:55 PM MDTSevere Thunderstorm WatchSPC7 hr
Jun 28, 11:18 PM MDTSpecial Weather StatementGLD42 min
Jun 28, 11:53 PM MDTSevere Thunderstorm WarningGLD52 min
Jun 29, 12:31 AM MDTSpecial Weather StatementGLD14 min
Jun 29, 12:39 AM MDTSevere Thunderstorm WarningGLD26 min
Jun 29, 6:50 PM MDTSevere Thunderstorm WarningGLD40 min
Jun 29, 7:20 PM MDTSevere Thunderstorm WatchSPC5 hr
Jun 29, 7:27 PM MDTSevere Thunderstorm WarningGLD15 min
Jun 29, 7:46 PM MDTSpecial Weather StatementGLD59 min
Jun 29, 8:48 PM MDTSpecial Weather StatementGLD42 min
Jun 29, 9:39 PM MDTFlash Flood WarningGLD3 hr
Jun 30, 1:46 PM MDTFlash Flood WatchGLD10 hr
Jun 30, 3:48 PM MDTMesoscale DiscussionSPC2 hr
Jul 1, 4:00 AM MDTFlash Flood WatchGLD20 hr
Jul 3, 2:58 AM MDTDense Fog AdvisoryGLD95 min
Jul 3, 4:12 PM MDTSpecial Weather StatementGLD33 min
Jul 3, 4:49 PM MDTSpecial Weather StatementGLD26 min
Jul 3, 5:06 PM MDTFlash Flood WarningGLD3 hr
Jul 7, 11:15 PM MDTSevere Thunderstorm WarningGLD45 min
Jul 7, 11:49 PM MDTSevere Thunderstorm WarningGLD41 min
Jul 8, 12:26 AM MDTSevere Thunderstorm WarningGLD49 min
Jul 11, 6:29 PM MDTSpecial Weather StatementGLD16 min
Jul 11, 6:36 PM MDTSevere Thunderstorm WarningGLD39 min
Jul 12, 1:56 AM MDTSpecial Weather StatementGLD19 min
Jul 12, 2:00 AM MDTSevere Thunderstorm WarningGLD22 min
Jul 13, 10:59 PM MDTSevere Thunderstorm WarningGLD46 min
Jul 14, 2:12 AM MDTSevere Thunderstorm WarningGLD48 min
Jul 14, 2:44 AM MDTSevere Thunderstorm WarningGLD32 min
Jul 14, 12:57 PM MDTMesoscale DiscussionSPC2 hr
Jul 14, 2:01 PM MDTSevere Thunderstorm WarningGLD44 min
Jul 14, 2:46 PM MDTSpecial Weather StatementGLD14 min
Jul 14, 3:03 PM MDTSpecial Weather StatementGLD12 min
Jul 14, 3:15 PM MDTSevere Thunderstorm WarningGLD45 min
Jul 14, 3:23 PM MDTSevere Thunderstorm WarningGLD52 min
Jul 14, 4:11 PM MDTSevere Thunderstorm WarningGLD34 min
Jul 14, 4:43 PM MDTSevere Thunderstorm WarningGLD22 min
Jul 14, 4:54 PM MDTSevere Thunderstorm WarningGLD36 min
Jul 14, 5:14 PM MDTSpecial Weather StatementGLD16 min
Jul 14, 5:17 PM MDTSevere Thunderstorm WarningGLD28 min
Jul 14, 5:31 PM MDTSevere Thunderstorm WarningGLD18 min
Jul 14, 6:06 PM MDTSevere Thunderstorm WarningGLD21 min
Jul 14, 6:42 PM MDTSevere Thunderstorm WarningGLD30 min
Jul 15, 12:44 PM MDTMesoscale DiscussionSPC91 min
Jul 15, 1:10 PM MDTSevere Thunderstorm WarningGLD50 min
Jul 15, 1:12 PM MDTSevere Thunderstorm WatchSPC7 hr
Jul 15, 1:38 PM MDTSevere Thunderstorm WarningGLD52 min
Jul 15, 1:43 PM MDTTornado WarningGLD17 min
Jul 15, 1:47 PM MDTSevere Thunderstorm WarningGLD43 min
Jul 15, 2:10 PM MDTTornado Warning Tornado observedGLD35 min
Jul 15, 2:14 PM MDTSevere Thunderstorm WarningGLD46 min
Jul 15, 2:46 PM MDTSpecial Weather StatementGLD14 min
Jul 17, 2:03 PM MDTMesoscale DiscussionSPC57 min
Jul 17, 6:55 PM MDTSevere Thunderstorm WarningGLD50 min
Jul 17, 7:30 PM MDTSevere Thunderstorm WarningGLD45 min
Jul 17, 8:14 PM MDTSevere Thunderstorm WarningGLD46 min
Jul 17, 9:32 PM MDTSpecial Weather StatementGLD43 min
Jul 21, 8:16 PM MDTSpecial Weather StatementGLD14 min
Jul 21, 9:23 PM MDTSpecial Weather StatementGLD22 min
Jul 22, 8:17 PM MDTSpecial Weather StatementGLD13 min
Jul 22, 8:33 PM MDTSpecial Weather StatementGLD27 min
Jul 22, 9:14 PM MDTSevere Thunderstorm WarningGLD31 min
Jul 24, 1:50 PM MDTMesoscale DiscussionSPC115 min
Jul 24, 4:25 PM MDTSevere Thunderstorm WatchSPC5 hr
Jul 24, 6:03 PM MDTSpecial Weather StatementGLD57 min
Jul 24, 6:18 PM MDTMesoscale DiscussionSPC87 min
Jul 24, 6:31 PM MDTSevere Thunderstorm WarningGLD44 min
Jul 24, 6:53 PM MDTSevere Thunderstorm WarningGLD25 min
Jul 24, 7:21 PM MDTSpecial Weather StatementGLD39 min
Jul 24, 8:01 PM MDTSpecial Weather StatementGLD44 min
Jul 26, 5:40 PM MDTSevere Thunderstorm WarningGLD30 min
Jul 26, 6:13 PM MDTSpecial Weather StatementGLD17 min
Jul 26, 7:25 PM MDTSpecial Weather StatementGLD20 min
Jul 26, 7:46 PM MDTSpecial Weather StatementGLD14 min
Jul 26, 8:01 PM MDTSpecial Weather StatementGLD14 min
Jul 26, 11:16 PM MDTSpecial Weather StatementGLD14 min
Jul 27, 4:41 PM MDTSevere Thunderstorm WarningGLD27 min
Jul 28, 1:58 PM MDTMesoscale DiscussionSPC2 hr
Jul 28, 7:01 PM MDTMesoscale DiscussionSPC59 min
Jul 28, 7:33 PM MDTSevere Thunderstorm WatchSPC4 hr
Jul 28, 8:07 PM MDTSpecial Weather StatementGLD8 min
Jul 28, 8:22 PM MDTSpecial Weather StatementGLD8 min
Jul 28, 8:28 PM MDTSevere Thunderstorm WarningGLD27 min
Jul 28, 8:42 PM MDTSevere Thunderstorm WarningGLD33 min
Jul 28, 9:14 PM MDTSpecial Weather StatementGLD16 min
Jul 28, 9:28 PM MDTSpecial Weather StatementGLD17 min
Jul 28, 9:34 PM MDTSevere Thunderstorm WarningGLD26 min
Jul 28, 9:52 PM MDTSpecial Weather StatementGLD8 min
Jul 28, 10:01 PM MDTSpecial Weather StatementGLD14 min
Jul 28, 10:20 PM MDTSpecial Weather StatementGLD40 min
Jul 28, 10:39 PM MDTMesoscale DiscussionSPC2 hr
Jul 29, 11:19 PM MDTSpecial Weather StatementGLD41 min
Jul 29, 11:42 PM MDTSpecial Weather StatementGLD48 min
Jul 29, 11:48 PM MDTSevere Thunderstorm WarningGLD42 min
Aug 1, 6:20 PM MDTSevere Thunderstorm WarningGLD21 min
Aug 6, 2:52 PM MDTMesoscale DiscussionSPC113 min
Aug 6, 4:04 PM MDTSpecial Weather StatementGLD41 min
Aug 6, 5:47 PM MDTSpecial Weather StatementGLD43 min
Aug 6, 6:20 PM MDTSpecial Weather StatementGLD25 min
Aug 6, 6:48 PM MDTSpecial Weather StatementGLD42 min
Aug 8, 6:46 AM MDTDense Fog AdvisoryGLD2 hr
Aug 8, 6:09 PM MDTSpecial Weather StatementGLD36 min
Aug 8, 10:00 PM MDTDense Fog AdvisoryGLD10 hr
Aug 16, 4:56 PM MDTMesoscale DiscussionSPC64 min
Aug 18, 6:30 PM MDTSpecial Weather StatementGLD30 min
Aug 19, 5:01 PM MDTMesoscale DiscussionSPC119 min
Aug 19, 6:28 PM MDTSevere Thunderstorm WarningGLD47 min
Aug 19, 7:14 PM MDTSpecial Weather StatementGLD31 min
Aug 19, 7:39 PM MDTSpecial Weather StatementGLD36 min
Aug 26, 12:52 PM MDTSpecial Weather StatementGLD8 min
Aug 26, 5:37 PM MDTSevere Thunderstorm WarningGLD38 min
Aug 27, 3:35 AM MDTDense Fog AdvisoryGLD7 hr
Aug 27, 2:27 PM MDTMesoscale DiscussionSPC93 min
Aug 27, 3:26 PM MDTSpecial Weather StatementGLD19 min
Aug 27, 3:49 PM MDTSevere Thunderstorm WarningGLD41 min
Aug 27, 4:31 PM MDTSpecial Weather StatementGLD14 min
Aug 27, 4:45 PM MDTSevere Thunderstorm WarningGLD45 min
Aug 27, 5:32 PM MDTSevere Thunderstorm WarningGLD43 min
Aug 30, 3:30 PM MDTFlash Flood WarningGLD3 hr
Aug 30, 3:53 PM MDTSpecial Weather StatementGLD22 min
Aug 31, 2:56 PM MDTSpecial Weather StatementGLD19 min
Aug 31, 3:27 PM MDTSpecial Weather StatementGLD18 min
Sep 2, 2:33 PM MDTMesoscale DiscussionSPC57 min
Sep 2, 8:47 PM MDTFlash Flood WarningGLD3 hr
Sep 2, 11:53 PM MDTAreal Flood WarningGLD9 hr
Sep 3, 1:14 AM MDTAreal Flood WarningGLD9 hr
Sep 3, 11:48 AM MDTFlash Flood WatchGLD17 hr
Sep 3, 1:51 PM MDTMesoscale DiscussionSPC114 min
Sep 3, 5:31 PM MDTSevere Thunderstorm WatchSPC7 hr
Sep 3, 6:49 PM MDTSevere Thunderstorm WarningGLD21 min
Sep 4, 1:53 PM MDTSpecial Weather StatementGLD22 min
Sep 4, 1:54 PM MDTMesoscale DiscussionSPC2 hr
Sep 4, 2:24 PM MDTSevere Thunderstorm WatchSPC7 hr
Sep 4, 2:36 PM MDTSpecial Weather StatementGLD9 min
Sep 4, 2:45 PM MDTSevere Thunderstorm WarningGLD45 min
Sep 5, 2:30 PM MDTMesoscale DiscussionSPC90 min
Sep 6, 6:36 PM MDTSpecial Weather StatementGLD24 min
Sep 17, 1:29 PM MDTSevere Thunderstorm WarningGLD35 min
Sep 17, 1:44 PM MDTMesoscale DiscussionSPC2 hr
Sep 17, 3:34 PM MDTSevere Thunderstorm WarningGLD9 min
Sep 17, 4:09 PM MDTTornado WarningGLD36 min
Sep 22, 5:40 PM MDTSpecial Weather StatementGLD20 min
Sep 22, 6:07 PM MDTSpecial Weather StatementGLD8 min
Sep 23, 7:23 PM MDTSpecial Weather StatementGLD22 min
Sep 23, 7:43 PM MDTSpecial Weather StatementGLD17 min
Sep 23, 7:58 PM MDTSpecial Weather StatementGLD32 min
Sep 23, 8:24 PM MDTSpecial Weather StatementGLD21 min
Sep 23, 8:29 PM MDTSpecial Weather StatementGLD31 min
Sep 23, 9:14 PM MDTSpecial Weather StatementGLD31 min
Sep 23, 9:44 PM MDTSpecial Weather StatementGLD31 min
Sep 23, 10:15 PM MDTSpecial Weather StatementGLD30 min
Sep 25, 12:00 PM MDTFrost AdvisoryGLD19 hr
Oct 2, 3:10 AM MDTFire Weather WatchGLD11 hr
Oct 2, 2:14 PM MDTRed Flag WarningGLD29 hr
Oct 4, 1:16 PM MDTFrost AdvisoryGLD19 hr
Oct 6, 2:29 AM MDTFrost AdvisoryGLD30 hr
Oct 14, 6:09 PM MDTFire Weather WatchGLD20 hr
Oct 15, 12:58 PM MDTFire Weather WatchGLD25 hr
Oct 15, 2:36 PM MDTRed Flag WarningGLD28 hr
Oct 16, 2:02 PM MDTRed Flag WarningGLD29 hr
Oct 19, 2:49 PM MDTFrost AdvisoryGLD18 hr
Oct 20, 1:47 PM MDTFrost AdvisoryGLD19 hr
Nov 16, 2:00 AM MSTRed Flag WarningGLD14 hr
Dec 7, 1:28 PM MSTWind Chill AdvisoryGLD19 hr
Dec 16, 12:34 PM MSTWind Chill AdvisoryGLD28 hr
Dec 17, 12:27 PM MSTWind Chill WarningGLD21 hr
Dec 18, 1:10 PM MSTWind Chill AdvisoryGLD19 hr
Dec 22, 2:05 PM MSTFreezing Rain AdvisoryGLD19 hr
Dec 25, 3:59 AM MSTHigh Wind WarningGLD13 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 archive20152017

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. Rebuilt daily.