Alert archive / Virginia / Pittsylvania County
Weather alerts in Pittsylvania County, Virginia, 2010
221 weather alerts in 2010, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Pittsylvania County and its neighbors
Each county as a circle sized by its count in 2010. Tap one for its archive.
- Alerts
- 221
- Warnings
- 102
- Watches
- 29
- Advisories
- 26
- Busiest month
- August38 alerts
- Busiest day
- October 27, 201013 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
0 of 11 tornado warnings covering Pittsylvania County in 2010 had a tornado report inside them.
Pittsylvania County, 2010
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 11 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 63 | 51 | 19% | 50 | 62% | 30 min |
| Flash flood warnings | 12 | 6 | 50% | 4 | 75% | 82 min |
Each office's whole area, 2010
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Blacksburg, VA: tornado warnings | 31 | 2 | 94% | 7 | 43% | 3 min |
| NWS Blacksburg, VA: severe thunderstorm warnings | 344 | 275 | 20% | 845 | 76% | 23 min |
| NWS Blacksburg, VA: flash flood warnings | 111 | 62 | 44% | 205 | 90% | 130 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, Eastern Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jan 1, 1:06 AM EST | Dense Fog Advisory | RNK | 6 hr |
| Jan 18, 11:47 AM EST | Flash Flood Watch | RNK | 8 days |
| Jan 21, 5:18 AM EST | Winter Weather Advisory | RNK | 31 hr |
| Jan 23, 3:57 PM EST | Wind Advisory | RNK | 39 hr |
| Jan 24, 11:07 AM EST | River Flood Warning | RNK | 3 days |
| Jan 25, 12:14 AM EST | Flash Flood Warning | RNK | 6 hr |
| Jan 25, 5:48 AM EST | River Flood Warning | RNK | 28 hr |
| Jan 25, 6:07 AM EST | Areal Flood Warning | RNK | 6 hr |
| Jan 25, 12:00 PM EST | Areal Flood Warning | RNK | 20 hr |
| Jan 26, 7:48 AM EST | Areal Flood Warning | RNK | 6 hr |
| Jan 27, 3:57 PM EST | Winter Storm Watch | RNK | 36 hr |
| Jan 28, 4:18 PM EST | Winter Storm Warning | RNK | 50 hr |
| Jan 30, 3:56 AM EST | Mesoscale Discussion | SPC | 5 hr |
| Feb 1, 3:53 PM EST | Winter Weather Advisory | RNK | 32 hr |
| Feb 3, 3:53 PM EST | Winter Storm Watch | RNK | 25 hr |
| Feb 4, 4:23 AM EST | Winter Storm Warning | RNK | 59 hr |
| Feb 5, 7:06 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Feb 5, 3:04 PM EST | Winter Weather Advisory | RNK | 25 hr |
| Feb 6, 3:38 AM EST | River Flood Warning | RNK | 22 hr |
| Feb 8, 4:16 PM EST | Winter Weather Advisory | RNK | 3 days |
| Feb 9, 3:56 AM EST | High Wind Watch | RNK | 18 hr |
| Feb 9, 1:22 PM EST | High Wind Warning | RNK | 40 hr |
| Feb 10, 11:30 PM EST | Wind Advisory | RNK | 6 hr |
| Feb 12, 3:25 PM EST | Winter Weather Advisory | RNK | 40 hr |
| Feb 24, 3:44 PM EST | High Wind Warning | RNK | 60 hr |
| Mar 2, 5:08 AM EST | Winter Weather Advisory | RNK | 23 hr |
| Mar 9, 3:33 PM EST | Flood Watch | RNK | 4 days |
| Mar 13, 4:56 PM EST | Special Weather Statement | RNK | 64 min |
| Mar 13, 6:35 PM EST | Special Weather Statement | RNK | 70 min |
| Mar 13, 9:51 PM EST | Special Weather Statement | RNK | 84 min |
| Mar 22, 5:31 AM EDT | Special Weather Statement | RNK | 59 min |
| Mar 28, 4:14 AM EDT | Flood Watch | RNK | 26 hr |
| Mar 28, 7:37 PM EDT | Tornado Watch | SPC | 4 hr |
| Mar 28, 9:49 PM EDT | Flash Flood Warning | RNK | 6 hr |
| Mar 28, 10:13 PM EDT | Mesoscale Discussion | SPC | 62 min |
| Mar 28, 10:36 PM EDT | River Flood Warning | RNK | 13 hr |
| Mar 29, 12:25 AM EDT | Mesoscale Discussion | SPC | 95 min |
| Mar 29, 3:41 AM EDT | Areal Flood Warning | RNK | 8 hr |
| Apr 5, 6:52 PM EDT | Severe Thunderstorm Warning | RNK | 53 min |
| Apr 8, 6:37 PM EDT | Mesoscale Discussion | SPC | 53 min |
| Apr 8, 6:42 PM EDT | Tornado Warning | RNK | 33 min |
| Apr 8, 6:57 PM EDT | Tornado Warning | RNK | 33 min |
| Apr 8, 7:08 PM EDT | Tornado Warning | RNK | 37 min |
| Apr 8, 7:12 PM EDT | Tornado Watch | SPC | 3 hr |
| Apr 8, 7:27 PM EDT | Tornado Warning | RNK | 33 min |
| Apr 8, 7:44 PM EDT | Tornado Warning | RNK | 46 min |
| Apr 8, 8:04 PM EDT | Severe Thunderstorm Warning | RNK | 46 min |
| Apr 18, 3:04 PM EDT | Frost Advisory | RNK | 18 hr |
| Apr 25, 2:53 PM EDT | Mesoscale Discussion | SPC | 67 min |
| Apr 28, 3:12 PM EDT | Frost Advisory | RNK | 18 hr |
| May 12, 2:20 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 12, 10:53 PM EDT | Severe Thunderstorm Warning | RNK | 52 min |
| May 14, 6:11 AM EDT | Dense Fog Advisory | RNK | 3 hr |
| May 14, 2:43 PM EDT | Severe Thunderstorm Warning | RNK | 62 min |
| May 14, 3:54 PM EDT | Special Weather Statement | RNK | 36 min |
| May 14, 9:41 PM EDT | Severe Thunderstorm Warning | RNK | 41 min |
| May 14, 10:20 PM EDT | Severe Thunderstorm Warning | RNK | 55 min |
| May 15, 11:35 PM EDT | Special Weather Statement | RNK | 25 min |
| May 16, 1:10 AM EDT | Special Weather Statement | RNK | 50 min |
| May 16, 10:47 PM EDT | Special Weather Statement | RNK | 58 min |
| May 22, 5:34 PM EDT | Severe Thunderstorm Warning | RNK | 56 min |
| May 23, 1:03 PM EDT | Mesoscale Discussion | SPC | 57 min |
| May 23, 6:01 PM EDT | Severe Thunderstorm Warning | RNK | 59 min |
| May 27, 8:14 PM EDT | Severe Thunderstorm Warning | RNK | 61 min |
| May 28, 4:28 AM EDT | Flash Flood Watch | RNK | 22 hr |
| May 28, 5:15 PM EDT | Special Weather Statement | RNK | 60 min |
| May 28, 6:18 PM EDT | Mesoscale Discussion | SPC | 87 min |
| May 28, 6:22 PM EDT | Severe Thunderstorm Warning | RNK | 53 min |
| May 28, 6:44 PM EDT | Special Weather Statement | RNK | 61 min |
| May 28, 6:46 PM EDT | Severe Thunderstorm Warning | RNK | 59 min |
| May 28, 7:15 PM EDT | Severe Thunderstorm Warning | RNK | 60 min |
| May 28, 7:50 PM EDT | Severe Thunderstorm Warning | RNK | 55 min |
| May 28, 8:37 PM EDT | Flash Flood Warning | RNK | 5 hr |
| May 28, 8:44 PM EDT | Severe Thunderstorm Warning | RNK | 66 min |
| Jun 2, 7:59 PM EDT | Special Weather Statement | RNK | 61 min |
| Jun 2, 8:30 PM EDT | Flash Flood Warning | RNK | 3 hr |
| Jun 3, 2:45 PM EDT | Severe Thunderstorm Warning | RNK | 60 min |
| Jun 6, 5:28 PM EDT | Special Weather Statement | RNK | 62 min |
| Jun 12, 1:27 PM EDT | Severe Thunderstorm Warning | RNK | 49 min |
| Jun 12, 2:06 PM EDT | Severe Thunderstorm Warning | RNK | 54 min |
| Jun 13, 12:27 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 13, 2:17 PM EDT | Severe Thunderstorm Warning | RNK | 58 min |
| Jun 14, 2:01 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 15, 6:04 PM EDT | Severe Thunderstorm Warning | RNK | 56 min |
| Jun 15, 6:36 PM EDT | Special Weather Statement | RNK | 54 min |
| Jun 15, 11:17 PM EDT | Special Weather Statement | RNK | 58 min |
| Jun 16, 3:48 PM EDT | Special Weather Statement | RNK | 57 min |
| Jun 16, 4:04 PM EDT | Severe Thunderstorm Warning | RNK | 56 min |
| Jun 19, 10:10 PM EDT | Special Weather Statement | RNK | 65 min |
| Jun 24, 3:09 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 24, 6:46 PM EDT | Severe Thunderstorm Warning | RNK | 59 min |
| Jun 28, 6:23 PM EDT | Severe Thunderstorm Warning | RNK | 67 min |
| Jun 28, 7:02 PM EDT | Special Weather Statement | RNK | 28 min |
| Jun 28, 7:27 PM EDT | Severe Thunderstorm Warning | RNK | 63 min |
| Jul 9, 12:08 AM EDT | Severe Thunderstorm Warning | RNK | 67 min |
| Jul 9, 12:38 AM EDT | Severe Thunderstorm Warning | RNK | 67 min |
| Jul 9, 1:07 AM EDT | Severe Thunderstorm Warning | RNK | 53 min |
| Jul 9, 4:19 PM EDT | Flash Flood Watch | RNK | 7 hr |
| Jul 12, 11:26 AM EDT | Mesoscale Discussion | SPC | 94 min |
| Jul 13, 2:13 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 13, 4:51 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Jul 13, 5:50 PM EDT | Severe Thunderstorm Warning | RNK | 51 min |
| Jul 16, 2:57 PM EDT | Severe Thunderstorm Warning | RNK | 53 min |
| Jul 16, 3:39 PM EDT | Severe Thunderstorm Warning | RNK | 45 min |
| Jul 16, 4:08 PM EDT | Severe Thunderstorm Warning | RNK | 45 min |
| Jul 17, 10:29 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 17, 1:38 PM EDT | Special Weather Statement | RNK | 2 hr |
| Jul 18, 3:33 PM EDT | Special Weather Statement | RNK | 57 min |
| Jul 18, 4:35 PM EDT | Special Weather Statement | RNK | 55 min |
| Jul 18, 4:41 PM EDT | Flash Flood Warning | RNK | 3 hr |
| Jul 18, 6:16 PM EDT | Severe Thunderstorm Warning | RNK | 59 min |
| Jul 20, 12:49 PM EDT | Mesoscale Discussion | SPC | 86 min |
| Jul 20, 1:29 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 20, 4:15 PM EDT | Severe Thunderstorm Warning | RNK | 60 min |
| Jul 20, 5:14 PM EDT | Severe Thunderstorm Warning | RNK | 61 min |
| Jul 21, 5:21 PM EDT | Severe Thunderstorm Warning | RNK | 54 min |
| Jul 23, 3:43 AM EDT | Heat Advisory | RNK | 15 hr |
| Jul 23, 2:02 PM EDT | Heat Advisory | RNK | 29 hr |
| Jul 24, 3:44 PM EDT | Heat Advisory | RNK | 27 hr |
| Jul 25, 5:36 PM EDT | Special Weather Statement | RNK | 24 min |
| Jul 25, 5:55 PM EDT | Severe Thunderstorm Warning | RNK | 65 min |
| Jul 25, 7:03 PM EDT | Severe Thunderstorm Warning | RNK | 57 min |
| Jul 27, 8:38 AM EDT | Special Weather Statement | RNK | 67 min |
| Jul 29, 5:20 PM EDT | Severe Thunderstorm Warning | RNK | 55 min |
| Jul 29, 5:41 PM EDT | Severe Thunderstorm Warning | RNK | 64 min |
| Aug 4, 5:52 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Aug 4, 7:48 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Aug 4, 8:21 PM EDT | Severe Thunderstorm Warning | RNK | 54 min |
| Aug 4, 8:50 PM EDT | Severe Thunderstorm Warning | RNK | 43 min |
| Aug 5, 12:14 PM EDT | Heat Advisory | RNK | 5 hr |
| Aug 5, 12:37 PM EDT | Mesoscale Discussion | SPC | 53 min |
| Aug 5, 1:19 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Aug 5, 2:45 PM EDT | Severe Thunderstorm Warning | RNK | 60 min |
| Aug 5, 3:56 PM EDT | Mesoscale Discussion | SPC | 64 min |
| Aug 5, 4:38 PM EDT | Flash Flood Warning | RNK | 5 hr |
| Aug 5, 4:43 PM EDT | Severe Thunderstorm Warning | RNK | 62 min |
| Aug 5, 4:52 PM EDT | Severe Thunderstorm Warning | RNK | 53 min |
| Aug 5, 6:01 PM EDT | Severe Thunderstorm Warning | RNK | 59 min |
| Aug 5, 6:23 PM EDT | Mesoscale Discussion | SPC | 97 min |
| Aug 11, 10:20 AM EDT | Heat Advisory | RNK | 8 hr |
| Aug 11, 4:38 PM EDT | Special Weather Statement | RNK | 67 min |
| Aug 11, 5:19 PM EDT | Severe Thunderstorm Warning | RNK | 39 min |
| Aug 16, 2:01 PM EDT | Mesoscale Discussion | SPC | 89 min |
| Aug 16, 5:59 PM EDT | Severe Thunderstorm Warning | RNK | 33 min |
| Aug 17, 3:48 PM EDT | Flash Flood Watch | RNK | 50 hr |
| Aug 18, 5:58 AM EDT | Special Weather Statement | RNK | 62 min |
| Aug 18, 2:18 PM EDT | Severe Thunderstorm Warning | RNK | 57 min |
| Aug 18, 2:22 PM EDT | Flash Flood Warning | RNK | 4 hr |
| Aug 18, 3:20 PM EDT | Severe Thunderstorm Warning | RNK | 55 min |
| Aug 18, 3:34 PM EDT | Flash Flood Warning | RNK | 2 hr |
| Aug 18, 3:58 PM EDT | Severe Thunderstorm Warning | RNK | 67 min |
| Aug 18, 4:13 PM EDT | Mesoscale Discussion | SPC | 62 min |
| Aug 18, 4:21 PM EDT | Severe Thunderstorm Warning | RNK | 54 min |
| Aug 20, 3:03 AM EDT | Dense Fog Advisory | RNK | 6 hr |
| Aug 23, 10:56 PM EDT | Special Weather Statement | RNK | 64 min |
| Aug 23, 11:30 PM EDT | Flash Flood Warning | RNK | 3 hr |
| Aug 23, 11:51 PM EDT | Special Weather Statement | RNK | 54 min |
| Aug 24, 12:46 AM EDT | Flash Flood Warning | RNK | 4 hr |
| Aug 24, 2:09 PM EDT | Areal Flood Advisory | RNK | 3 hr |
| Aug 24, 4:24 PM EDT | Special Weather Statement | RNK | 36 min |
| Aug 26, 3:31 PM EDT | Mesoscale Discussion | SPC | 89 min |
| Aug 26, 4:29 PM EDT | Severe Thunderstorm Warning | RNK | 61 min |
| Aug 26, 5:28 PM EDT | Special Weather Statement | RNK | 32 min |
| Sep 22, 4:59 PM EDT | Severe Thunderstorm Warning | RNK | 61 min |
| Sep 22, 5:44 PM EDT | Severe Thunderstorm Warning | RNK | 75 min |
| Sep 22, 5:54 PM EDT | Severe Thunderstorm Warning | RNK | 81 min |
| Sep 22, 6:31 PM EDT | Severe Thunderstorm Warning | RNK | 62 min |
| Sep 22, 7:07 PM EDT | Severe Thunderstorm Warning | RNK | 27 min |
| Sep 26, 3:36 PM EDT | Flood Watch | RNK | 36 hr |
| Sep 29, 4:48 AM EDT | Flash Flood Watch | RNK | 30 hr |
| Sep 29, 8:58 PM EDT | Special Weather Statement | RNK | 92 min |
| Sep 30, 9:02 AM EDT | Areal Flood Advisory | RNK | 6 hr |
| Sep 30, 11:15 AM EDT | River Flood Warning | RNK | 33 hr |
| Oct 21, 1:33 AM EDT | Dense Fog Advisory | RNK | 5 hr |
| Oct 22, 3:14 PM EDT | Frost Advisory | RNK | 18 hr |
| Oct 25, 8:23 AM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Oct 25, 10:44 AM EDT | Mesoscale Discussion | SPC | 61 min |
| Oct 26, 6:21 PM EDT | Mesoscale Discussion | SPC | 54 min |
| Oct 26, 7:19 PM EDT | Tornado Watch | SPC | 12 hr |
| Oct 26, 11:05 PM EDT | Mesoscale Discussion | SPC | 55 min |
| Oct 26, 11:21 PM EDT | Severe Thunderstorm Warning | RNK | 54 min |
| Oct 26, 11:27 PM EDT | Tornado Warning | RNK | 48 min |
| Oct 27, 12:16 AM EDT | Tornado Warning | RNK | 44 min |
| Oct 27, 12:24 AM EDT | Mesoscale Discussion | SPC | 66 min |
| Oct 27, 1:58 AM EDT | Special Weather Statement | RNK | 47 min |
| Oct 27, 2:44 AM EDT | Tornado Watch | SPC | 7 hr |
| Oct 27, 5:28 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Oct 27, 12:13 PM EDT | Tornado Watch | SPC | 8 hr |
| Oct 27, 7:16 PM EDT | Mesoscale Discussion | SPC | 59 min |
| Oct 27, 7:32 PM EDT | Severe Thunderstorm Warning | RNK | 73 min |
| Oct 27, 7:46 PM EDT | Tornado Watch | SPC | 8 hr |
| Oct 27, 7:51 PM EDT | Tornado Warning | RNK | 54 min |
| Oct 27, 8:15 PM EDT | Tornado Warning | RNK | 60 min |
| Oct 27, 8:22 PM EDT | Flash Flood Warning | RNK | 5 hr |
| Oct 27, 8:38 PM EDT | Tornado Warning | RNK | 49 min |
| Oct 28, 7:22 AM EDT | River Flood Warning | RNK | 9 hr |
| Oct 29, 4:00 AM EDT | Freeze Watch | RNK | 12 hr |
| Oct 29, 3:32 PM EDT | Frost Advisory | RNK | 17 hr |
| Nov 16, 7:34 PM EST | Mesoscale Discussion | SPC | 116 min |
| Nov 16, 8:47 PM EST | Tornado Watch | SPC | 6 hr |
| Nov 16, 8:56 PM EST | Severe Thunderstorm Warning | RNK | 64 min |
| Nov 16, 9:41 PM EST | Severe Thunderstorm Warning | RNK | 64 min |
| Nov 16, 10:29 PM EST | Severe Thunderstorm Warning | RNK | 77 min |
| Nov 30, 9:29 PM EST | Mesoscale Discussion | SPC | 91 min |
| Nov 30, 9:56 PM EST | Tornado Watch | SPC | 6 hr |
| Dec 1, 12:48 AM EST | Mesoscale Discussion | SPC | 117 min |
| Dec 1, 1:34 AM EST | Severe Thunderstorm Warning | RNK | 57 min |
| Dec 1, 1:48 AM EST | Tornado Warning | RNK | 42 min |
| Dec 1, 2:20 AM EST | Severe Thunderstorm Warning | RNK | 43 min |
| Dec 1, 2:26 AM EST | Flash Flood Warning | RNK | 4 hr |
| Dec 3, 3:23 PM EST | Winter Weather Advisory | RNK | 40 hr |
| Dec 15, 5:10 AM EST | Winter Storm Watch | RNK | 10 hr |
| Dec 15, 3:31 PM EST | Winter Storm Warning | RNK | 26 hr |
| Dec 15, 3:31 PM EST | Winter Weather Advisory | RNK | 37 hr |
| Dec 16, 4:17 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Dec 17, 10:09 PM EST | Dense Fog Advisory | RNK | 6 hr |
| Dec 25, 4:52 AM EST | Winter Storm Warning | RNK | 62 hr |
| Dec 25, 2:22 PM EST | Special Weather Statement | RNK | 113 min |
| Dec 25, 3:22 PM EST | Special Weather Statement | RNK | 113 min |
| Dec 25, 5:10 PM EST | Special Weather Statement | RNK | 80 min |
| Dec 25, 6:17 PM EST | Special Weather Statement | RNK | 88 min |
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 | 63 |
| Tornado Warning | 11 |
| Severe Thunderstorm Watch | 8 |
| Tornado Watch | 8 |
| Mesoscale Discussion | 30 |
| Special Weather Statement | 34 |
| Flooding | |
| Areal Flood Warning | 4 |
| Flash Flood Warning | 12 |
| River Flood Warning | 6 |
| Flash Flood Watch | 5 |
| Flood Watch | 3 |
| Areal Flood Advisory | 2 |
| Winter | |
| Winter Storm Warning | 4 |
| Winter Storm Watch | 3 |
| Winter Weather Advisory | 8 |
| Heat | |
| Heat Advisory | 5 |
| Cold | |
| Freeze Watch | 1 |
| Frost Advisory | 4 |
| Wind and dust | |
| High Wind Warning | 2 |
| High Wind Watch | 1 |
| Wind Advisory | 2 |
| Fog and smoke | |
| Dense Fog Advisory | 5 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20092011
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.