Alert archive / Kansas / Ellsworth County
Weather alerts in Ellsworth County, Kansas, 2014
225 weather alerts in 2014, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Ellsworth County and its neighbors
Each county as a circle sized by its count in 2014. Tap one for its archive.
- Alerts
- 225
- Warnings
- 66
- Watches
- 36
- Advisories
- 61
- Busiest month
- June46 alerts
- Busiest day
- May 12, 201411 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Ellsworth County, 2014
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 26 | 13 | 50% | 4 | 50% | 35 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2014
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Wichita, KS: tornado warnings | 9 | 5 | 44% | 21 | 57% | 17 min |
| NWS Wichita, KS: severe thunderstorm warnings | 264 | 142 | 46% | 365 | 82% | 24 min |
| NWS Wichita, KS: flash flood warnings | 10 | 7 | 30% | 19 | 95% | 118 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, Central Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jan 1, 3:44 AM CST | Winter Weather Advisory | ICT | 17 hr |
| Jan 4, 4:10 AM CST | Winter Weather Advisory | ICT | 31 hr |
| Jan 5, 3:47 AM CST | Wind Chill Advisory | ICT | 32 hr |
| Jan 9, 8:29 PM CST | Dense Fog Advisory | ICT | 16 hr |
| Jan 13, 3:52 AM CST | Fire Weather Watch | ICT | 24 hr |
| Jan 13, 3:33 PM CST | Wind Advisory | ICT | 25 hr |
| Jan 14, 3:48 AM CST | Red Flag Warning | ICT | 13 hr |
| Jan 15, 3:22 AM CST | Fire Weather Watch | ICT | 24 hr |
| Jan 15, 3:33 AM CST | High Wind Watch | ICT | 24 hr |
| Jan 16, 3:42 AM CST | High Wind Warning | ICT | 15 hr |
| Jan 16, 3:50 AM CST | Red Flag Warning | ICT | 15 hr |
| Jan 18, 3:17 AM CST | Wind Advisory | ICT | 15 hr |
| Jan 18, 3:20 AM CST | Red Flag Warning | ICT | 15 hr |
| Jan 22, 3:08 AM CST | Wind Chill Advisory | ICT | 31 hr |
| Jan 23, 3:37 AM CST | Fire Weather Watch | ICT | 24 hr |
| Jan 26, 3:30 AM CST | Wind Advisory | ICT | 24 hr |
| Jan 26, 6:51 PM CST | High Wind Warning | ICT | 2 hr |
| Jan 26, 6:51 PM CST | Wind Advisory | ICT | 8 hr |
| Jan 31, 4:32 AM CST | Winter Weather Advisory | ICT | 28 hr |
| Feb 2, 3:58 AM CST | Winter Storm Watch | ICT | 24 hr |
| Feb 3, 4:24 AM CST | Winter Storm Warning | ICT | 44 hr |
| Feb 4, 11:54 PM CST | Wind Chill Advisory | ICT | 12 hr |
| Feb 5, 2:31 PM CST | Wind Chill Advisory | ICT | 19 hr |
| Feb 9, 6:36 PM CST | Winter Weather Advisory | ICT | 13 hr |
| Feb 17, 2:58 AM CST | Wind Advisory | ICT | 5 hr |
| Feb 18, 3:16 AM CST | Red Flag Warning | ICT | 15 hr |
| Feb 19, 3:37 AM CST | High Wind Watch | ICT | 11 hr |
| Feb 19, 3:37 AM CST | Wind Advisory | ICT | 38 hr |
| Feb 19, 2:21 PM CST | Winter Weather Advisory | ICT | 21 hr |
| Feb 19, 2:46 PM CST | High Wind Warning | ICT | 20 hr |
| Feb 27, 3:57 PM CST | Winter Storm Watch | ICT | 36 hr |
| Mar 1, 4:19 AM CST | Winter Storm Warning | ICT | 48 hr |
| Mar 1, 4:19 AM CST | Winter Weather Advisory | ICT | 38 hr |
| Mar 1, 8:55 PM CST | Mesoscale Discussion | SPC | 6 hr |
| Mar 2, 4:43 AM CST | Wind Chill Advisory | ICT | 28 hr |
| Mar 6, 2:56 AM CST | Dense Fog Advisory | ICT | 9 hr |
| Mar 10, 3:19 PM CDT | Wind Advisory | ICT | 36 hr |
| Mar 11, 3:23 AM CDT | Red Flag Warning | ICT | 16 hr |
| Mar 13, 3:33 AM CDT | Red Flag Warning | ICT | 15 hr |
| Mar 15, 4:18 AM CDT | Wind Advisory | ICT | 29 hr |
| Mar 16, 3:41 PM CDT | Red Flag Warning | ICT | 27 hr |
| Mar 17, 3:58 AM CDT | Fire Weather Watch | ICT | 12 hr |
| Mar 17, 4:05 AM CDT | Wind Advisory | ICT | 42 hr |
| Mar 17, 4:05 PM CDT | Red Flag Warning | ICT | 30 hr |
| Mar 21, 3:32 AM CDT | Red Flag Warning | ICT | 16 hr |
| Mar 25, 3:39 AM CDT | Wind Advisory | ICT | 43 hr |
| Mar 25, 3:49 AM CDT | Fire Weather Watch | ICT | 24 hr |
| Mar 26, 3:39 AM CDT | Red Flag Warning | ICT | 13 hr |
| Mar 26, 12:50 PM CDT | High Wind Warning | ICT | 4 hr |
| Mar 26, 12:50 PM CDT | Wind Advisory | ICT | 10 hr |
| Mar 29, 6:49 AM CDT | Fire Weather Watch | ICT | 9 hr |
| Mar 29, 3:27 PM CDT | Wind Advisory | ICT | 30 hr |
| Mar 29, 3:30 PM CDT | Red Flag Warning | ICT | 30 hr |
| Mar 30, 3:41 PM CDT | Wind Advisory | ICT | 28 hr |
| Mar 30, 3:47 PM CDT | Fire Weather Watch | ICT | 12 hr |
| Mar 31, 3:27 AM CDT | Red Flag Warning | ICT | 17 hr |
| Apr 2, 7:25 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Apr 7, 3:45 PM CDT | Special Weather Statement | ICT | 45 min |
| Apr 8, 3:08 PM CDT | Fire Weather Watch | ICT | 12 hr |
| Apr 9, 3:09 AM CDT | Red Flag Warning | ICT | 16 hr |
| Apr 12, 3:07 PM CDT | Wind Advisory | ICT | 30 hr |
| Apr 12, 6:26 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Apr 13, 4:17 AM CDT | Freeze Watch | ICT | 12 hr |
| Apr 13, 4:17 AM CDT | Freeze Watch | ICT | 12 hr |
| Apr 13, 4:38 PM CDT | Freeze Warning | ICT | 16 hr |
| Apr 13, 4:38 PM CDT | Freeze Warning | ICT | 40 hr |
| Apr 14, 3:43 PM CDT | Fire Weather Watch | ICT | 12 hr |
| Apr 15, 3:41 AM CDT | Red Flag Warning | ICT | 15 hr |
| Apr 19, 12:14 PM CDT | Wind Advisory | ICT | 6 hr |
| Apr 19, 12:16 PM CDT | Red Flag Warning | ICT | 6 hr |
| Apr 22, 3:41 PM CDT | Wind Advisory | ICT | 31 hr |
| Apr 22, 3:50 PM CDT | Fire Weather Watch | ICT | 12 hr |
| Apr 23, 4:04 AM CDT | Red Flag Warning | ICT | 16 hr |
| Apr 23, 9:56 PM CDT | Special Weather Statement | ICT | 34 min |
| Apr 25, 3:44 AM CDT | Fire Weather Watch | ICT | 15 hr |
| Apr 25, 11:56 AM CDT | Red Flag Warning | ICT | 7 hr |
| Apr 25, 6:59 PM CDT | Red Flag Warning | ICT | 25 hr |
| Apr 26, 3:46 AM CDT | Fire Weather Watch | ICT | 39 hr |
| Apr 26, 3:50 AM CDT | Wind Advisory | ICT | 19 hr |
| Apr 26, 3:26 PM CDT | Red Flag Warning | ICT | 30 hr |
| Apr 27, 2:45 AM CDT | Wind Advisory | ICT | 18 hr |
| Apr 27, 5:09 AM CDT | Mesoscale Discussion | SPC | 96 min |
| Apr 27, 5:29 AM CDT | Severe Thunderstorm Warning | ICT | 46 min |
| Apr 27, 6:09 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Apr 27, 3:35 PM CDT | Red Flag Warning | ICT | 27 hr |
| Apr 27, 3:43 PM CDT | Wind Advisory | ICT | 51 hr |
| Apr 27, 5:38 PM CDT | Blowing Dust Advisory | ICT | 3 hr |
| May 1, 4:18 PM CDT | Frost Advisory | ICT | 16 hr |
| May 6, 3:12 AM CDT | Red Flag Warning | ICT | 42 hr |
| May 7, 8:14 AM CDT | Wind Advisory | ICT | 8 hr |
| May 7, 5:10 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 7, 6:29 PM CDT | Special Weather Statement | ICT | 31 min |
| May 7, 7:34 PM CDT | Special Weather Statement | ICT | 26 min |
| May 7, 8:17 PM CDT | Special Weather Statement | ICT | 28 min |
| May 7, 8:27 PM CDT | Severe Thunderstorm Warning | ICT | 48 min |
| May 10, 7:59 PM CDT | Mesoscale Discussion | SPC | 91 min |
| May 10, 9:50 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 10, 11:54 PM CDT | Mesoscale Discussion | SPC | 96 min |
| May 11, 3:36 AM CDT | Wind Advisory | ICT | 21 hr |
| May 11, 3:40 AM CDT | Red Flag Warning | ICT | 16 hr |
| May 11, 1:46 PM CDT | Mesoscale Discussion | SPC | 119 min |
| May 11, 2:38 PM CDT | Tornado Watch | SPC | 7 hr |
| May 11, 5:31 PM CDT | Mesoscale Discussion | SPC | 89 min |
| May 11, 5:48 PM CDT | Severe Thunderstorm Warning | ICT | 57 min |
| May 11, 6:34 PM CDT | Severe Thunderstorm Warning | ICT | 41 min |
| May 11, 7:03 PM CDT | Severe Thunderstorm Warning | ICT | 42 min |
| May 11, 7:17 PM CDT | Severe Thunderstorm Warning | ICT | 43 min |
| May 11, 7:45 PM CDT | Severe Thunderstorm Warning | ICT | 60 min |
| May 11, 7:52 PM CDT | Areal Flood Warning | ICT | 12 hr |
| May 11, 7:58 PM CDT | Severe Thunderstorm Warning | ICT | 47 min |
| May 11, 8:21 PM CDT | Severe Thunderstorm Warning | ICT | 24 min |
| May 11, 8:30 PM CDT | Mesoscale Discussion | SPC | 90 min |
| May 11, 8:41 PM CDT | Severe Thunderstorm Warning | ICT | 49 min |
| May 12, 1:52 AM CDT | Special Weather Statement | ICT | 23 min |
| May 12, 2:15 AM CDT | Special Weather Statement | ICT | 30 min |
| May 12, 2:25 AM CDT | Special Weather Statement | ICT | 35 min |
| May 13, 3:29 PM CDT | Frost Advisory | ICT | 17 hr |
| May 19, 7:54 AM CDT | Wind Advisory | ICT | 13 hr |
| May 28, 3:40 PM CDT | Special Weather Statement | ICT | 35 min |
| May 28, 4:12 PM CDT | Special Weather Statement | ICT | 33 min |
| Jun 1, 3:07 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 1, 6:38 PM CDT | Severe Thunderstorm Warning | ICT | 67 min |
| Jun 1, 6:44 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Jun 1, 7:43 PM CDT | Severe Thunderstorm Warning | ICT | 62 min |
| Jun 1, 7:49 PM CDT | Areal Flood Warning | ICT | 5 hr |
| Jun 2, 3:56 PM CDT | Wind Advisory | ICT | 27 hr |
| Jun 3, 10:44 PM CDT | High Wind Warning | ICT | 2 hr |
| Jun 5, 1:35 AM CDT | Mesoscale Discussion | SPC | 85 min |
| Jun 5, 1:57 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 5, 3:50 AM CDT | Mesoscale Discussion | SPC | 115 min |
| Jun 5, 4:15 AM CDT | Severe Thunderstorm Warning | ICT | 60 min |
| Jun 5, 4:51 AM CDT | Severe Thunderstorm Warning | ICT | 54 min |
| Jun 5, 5:47 AM CDT | Severe Thunderstorm Warning | ICT | 18 min |
| Jun 5, 6:04 AM CDT | Mesoscale Discussion | SPC | 86 min |
| Jun 5, 6:45 AM CDT | High Wind Warning | ICT | 3 hr |
| Jun 6, 8:16 PM CDT | Mesoscale Discussion | SPC | 119 min |
| Jun 6, 8:31 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 9, 1:28 PM CDT | Areal Flood Warning | ICT | 8 hr |
| Jun 9, 9:31 PM CDT | Areal Flood Warning | ICT | 65 hr |
| Jun 10, 3:31 PM CDT | Flood Watch | ICT | 39 hr |
| Jun 11, 7:49 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jun 11, 9:49 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 11, 10:47 PM CDT | Severe Thunderstorm Warning | ICT | 43 min |
| Jun 11, 11:37 PM CDT | Special Weather Statement | ICT | 23 min |
| Jun 12, 12:00 AM CDT | Severe Thunderstorm Warning | ICT | 45 min |
| Jun 14, 3:02 AM CDT | Wind Advisory | ICT | 19 hr |
| Jun 14, 10:56 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Jun 14, 11:32 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 14, 11:46 PM CDT | Severe Thunderstorm Warning | ICT | 44 min |
| Jun 15, 12:27 AM CDT | Severe Thunderstorm Warning | ICT | 48 min |
| Jun 16, 4:18 AM CDT | Wind Advisory | ICT | 16 hr |
| Jun 18, 3:22 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 18, 9:37 PM CDT | Severe Thunderstorm Warning | ICT | 23 min |
| Jun 18, 10:00 PM CDT | Special Weather Statement | ICT | 30 min |
| Jun 18, 10:23 PM CDT | Special Weather Statement | ICT | 37 min |
| Jun 18, 10:25 PM CDT | Special Weather Statement | ICT | 35 min |
| Jun 22, 2:57 PM CDT | Mesoscale Discussion | SPC | 63 min |
| Jun 22, 3:47 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 22, 5:34 PM CDT | Special Weather Statement | ICT | 26 min |
| Jun 22, 5:45 PM CDT | Severe Thunderstorm Warning | ICT | 45 min |
| Jun 22, 6:29 PM CDT | Special Weather Statement | ICT | 31 min |
| Jun 28, 1:49 AM CDT | Special Weather Statement | ICT | 26 min |
| Jun 28, 2:14 AM CDT | Special Weather Statement | ICT | 31 min |
| Jun 28, 2:40 AM CDT | Special Weather Statement | ICT | 35 min |
| Jun 29, 1:33 AM CDT | Mesoscale Discussion | SPC | 87 min |
| Jun 29, 6:38 AM CDT | Mesoscale Discussion | SPC | 97 min |
| Jul 7, 8:09 PM CDT | Mesoscale Discussion | SPC | 66 min |
| Jul 7, 8:22 PM CDT | Special Weather Statement | ICT | 23 min |
| Jul 7, 8:47 PM CDT | Special Weather Statement | ICT | 28 min |
| Jul 8, 3:42 AM CDT | Special Weather Statement | ICT | 33 min |
| Jul 9, 11:27 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Jul 10, 2:39 AM CDT | Mesoscale Discussion | SPC | 96 min |
| Jul 20, 3:59 PM CDT | Heat Advisory | ICT | 28 hr |
| Jul 21, 2:55 AM CDT | Heat Advisory | ICT | 41 hr |
| Jul 24, 2:44 PM CDT | Heat Advisory | ICT | 29 hr |
| Jul 25, 3:48 PM CDT | Heat Advisory | ICT | 28 hr |
| Jul 27, 3:39 AM CDT | Special Weather Statement | ICT | 66 min |
| Aug 9, 5:32 PM CDT | Mesoscale Discussion | SPC | 88 min |
| Aug 9, 6:52 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 9, 9:22 PM CDT | Mesoscale Discussion | SPC | 53 min |
| Aug 9, 11:13 PM CDT | Mesoscale Discussion | SPC | 62 min |
| Aug 17, 9:07 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Aug 17, 9:14 PM CDT | Severe Thunderstorm Warning | ICT | 46 min |
| Aug 17, 9:58 PM CDT | Severe Thunderstorm Warning | ICT | 47 min |
| Aug 25, 9:51 PM CDT | Special Weather Statement | ICT | 54 min |
| Aug 31, 5:17 PM CDT | Mesoscale Discussion | SPC | 58 min |
| Aug 31, 5:34 PM CDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Aug 31, 7:13 PM CDT | Severe Thunderstorm Warning | ICT | 47 min |
| Aug 31, 8:34 PM CDT | Special Weather Statement | ICT | 26 min |
| Aug 31, 9:39 PM CDT | Mesoscale Discussion | SPC | 96 min |
| Aug 31, 10:28 PM CDT | Severe Thunderstorm Warning | ICT | 32 min |
| Aug 31, 11:31 PM CDT | Areal Flood Warning | ICT | 8 hr |
| Aug 31, 11:36 PM CDT | Special Weather Statement | ICT | 24 min |
| Aug 31, 11:54 PM CDT | Areal Flood Warning | ICT | 8 hr |
| Sep 1, 12:02 AM CDT | Mesoscale Discussion | SPC | 88 min |
| Sep 3, 12:06 AM CDT | Mesoscale Discussion | SPC | 84 min |
| Sep 3, 12:24 AM CDT | Special Weather Statement | ICT | 36 min |
| Sep 3, 12:37 AM CDT | Special Weather Statement | ICT | 38 min |
| Sep 3, 1:13 AM CDT | Special Weather Statement | ICT | 32 min |
| Sep 3, 2:03 AM CDT | Special Weather Statement | ICT | 27 min |
| Sep 9, 5:26 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Sep 9, 10:32 PM CDT | Mesoscale Discussion | SPC | 88 min |
| Sep 9, 10:47 PM CDT | Special Weather Statement | ICT | 28 min |
| Sep 18, 1:10 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 23, 7:55 AM CDT | Areal Flood Warning | ICT | 5 hr |
| Sep 30, 5:21 PM CDT | Mesoscale Discussion | SPC | 54 min |
| Sep 30, 6:23 PM CDT | Special Weather Statement | ICT | 52 min |
| Sep 30, 6:40 PM CDT | Severe Thunderstorm Warning | ICT | 34 min |
| Oct 1, 8:50 AM CDT | Dense Fog Advisory | ICT | 2 hr |
| Oct 3, 9:20 PM CDT | Frost Advisory | ICT | 12 hr |
| Oct 12, 3:47 PM CDT | Wind Advisory | ICT | 27 hr |
| Oct 20, 6:32 AM CDT | Dense Fog Advisory | ICT | 2 hr |
| Oct 25, 5:53 AM CDT | Dense Fog Advisory | ICT | 4 hr |
| Oct 28, 3:55 PM CDT | Frost Advisory | ICT | 17 hr |
| Oct 30, 3:28 AM CDT | Freeze Warning | ICT | 54 hr |
| Nov 2, 1:47 AM CST | Wind Advisory | ICT | 15 hr |
| Nov 10, 3:41 AM CST | Wind Advisory | ICT | 23 hr |
| Nov 14, 3:49 AM CST | Winter Weather Advisory | ICT | 31 hr |
| Nov 21, 10:54 AM CST | Dense Fog Advisory | ICT | 26 hr |
| Nov 23, 3:57 AM CST | Wind Advisory | ICT | 17 hr |
| Dec 7, 11:47 PM CST | Dense Fog Advisory | ICT | 4 hr |
| Dec 12, 5:12 PM CST | Dense Fog Advisory | ICT | 18 hr |
| Dec 17, 4:20 AM CST | Winter Weather Advisory | ICT | 30 hr |
| Dec 29, 3:50 AM CST | Winter Weather Advisory | ICT | 32 hr |
| Dec 30, 4:14 PM CST | Wind Chill Advisory | ICT | 17 hr |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Severe storms | |
| Severe Thunderstorm Warning | 26 |
| Severe Thunderstorm Watch | 16 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 30 |
| Special Weather Statement | 32 |
| Flooding | |
| Areal Flood Warning | 7 |
| Flood Watch | 1 |
| Winter | |
| Winter Storm Warning | 2 |
| Winter Storm Watch | 2 |
| Winter Weather Advisory | 9 |
| Heat | |
| Heat Advisory | 4 |
| Cold | |
| Freeze Warning | 3 |
| Freeze Watch | 2 |
| Frost Advisory | 4 |
| Wind Chill Advisory | 6 |
| Wind and dust | |
| High Wind Warning | 6 |
| High Wind Watch | 2 |
| Blowing Dust Advisory | 1 |
| Wind Advisory | 29 |
| Fire | |
| Red Flag Warning | 22 |
| Fire Weather Watch | 12 |
| Fog and smoke | |
| Dense Fog Advisory | 8 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20132015
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.