Alert archive / New York / Suffolk County
Weather alerts in Suffolk County, New York, 2012
219 weather alerts in 2012, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Suffolk County and its neighbors
Each county as a circle sized by its count in 2012. Tap one for its archive.
- Alerts
- 219
- Warnings
- 39
- Watches
- 21
- Advisories
- 77
- Busiest month
- July42 alerts
- Busiest day
- August 15, 201211 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
1 of 4 tornado warnings covering Suffolk County in 2012 had a tornado report inside them; 2 of 3 tornado reports fell inside a warning, on average 13 minutes after it went out.
Suffolk County, 2012
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 4 | 1 | 75% | 3 | 67% | 13 min |
| Severe thunderstorm warnings | 19 | 14 | 26% | 21 | 71% | 15 min |
| Flash flood warnings | 4 | 4 | 0% | 8 | 63% | 40 min |
Each office's whole area, 2012
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS New York, NY: tornado warnings | 13 | 3 | 77% | 6 | 83% | 13 min |
| NWS New York, NY: severe thunderstorm warnings | 93 | 68 | 27% | 157 | 82% | 28 min |
| NWS New York, NY: flash flood warnings | 35 | 29 | 17% | 89 | 90% | 43 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 11, 3:56 AM EST | Wind Advisory | OKX | 30 hr |
| Jan 11, 3:13 PM EST | Coastal Flood Advisory | OKX | 24 hr |
| Jan 12, 9:39 PM EST | Wind Advisory | OKX | 23 hr |
| Jan 18, 3:09 AM EST | Wind Advisory | OKX | 4 hr |
| Jan 20, 3:41 AM EST | Winter Weather Advisory | OKX | 36 hr |
| Jan 21, 10:58 AM EST | Winter Storm Warning | OKX | 5 hr |
| Jan 22, 3:40 PM EST | Freezing Rain Advisory | OKX | 20 hr |
| Feb 10, 3:35 PM EST | Winter Weather Advisory | OKX | 9 hr |
| Feb 24, 4:13 AM EST | High Wind Watch | OKX | 11 hr |
| Feb 24, 4:13 AM EST | Wind Advisory | OKX | 44 hr |
| Feb 24, 3:07 PM EST | High Wind Warning | OKX | 24 hr |
| Mar 8, 4:05 AM EST | Wind Advisory | OKX | 18 hr |
| Mar 17, 2:21 AM EDT | Dense Fog Advisory | OKX | 5 hr |
| Mar 18, 6:06 PM EDT | Dense Fog Advisory | OKX | 6 hr |
| Mar 20, 4:46 AM EDT | Dense Fog Advisory | OKX | 6 hr |
| Mar 20, 3:10 PM EDT | Dense Fog Advisory | OKX | 19 hr |
| Mar 21, 10:07 PM EDT | Dense Fog Advisory | OKX | 9 hr |
| Apr 6, 4:15 AM EDT | Coastal Flood Statement | OKX | 22 hr |
| Apr 7, 4:18 AM EDT | Coastal Flood Statement | OKX | 22 hr |
| Apr 8, 3:18 PM EDT | Coastal Flood Statement | OKX | 11 hr |
| Apr 21, 4:05 PM EDT | Flood Watch | OKX | 36 hr |
| Apr 22, 4:01 PM EDT | High Surf Advisory | OKX | 54 hr |
| Apr 22, 8:44 PM EDT | Coastal Flood Statement | OKX | 5 hr |
| Apr 22, 9:55 PM EDT | Areal Flood Advisory | OKX | 6 hr |
| Apr 27, 3:55 AM EDT | Freeze Watch | OKX | 12 hr |
| Apr 27, 3:55 AM EDT | Freeze Warning | OKX | 28 hr |
| Apr 29, 3:47 AM EDT | Freeze Watch | OKX | 9 hr |
| Apr 29, 12:40 PM EDT | Freeze Warning | OKX | 19 hr |
| May 5, 3:59 AM EDT | Coastal Flood Statement | OKX | 21 hr |
| May 8, 4:33 PM EDT | Coastal Flood Advisory | OKX | 6 hr |
| May 15, 8:06 PM EDT | Dense Fog Advisory | OKX | 13 hr |
| May 25, 6:29 AM EDT | Dense Fog Advisory | OKX | 4 hr |
| May 26, 12:45 AM EDT | Dense Fog Advisory | OKX | 8 hr |
| May 26, 6:04 PM EDT | Mesoscale Discussion | SPC | 56 min |
| May 31, 2:55 AM EDT | Dense Fog Advisory | OKX | 3 hr |
| Jun 1, 3:41 AM EDT | Coastal Flood Statement | OKX | 12 hr |
| Jun 1, 3:38 PM EDT | Coastal Flood Advisory | OKX | 7 hr |
| Jun 2, 2:08 AM EDT | Areal Flood Advisory | OKX | 3 hr |
| Jun 2, 5:40 AM EDT | Coastal Flood Advisory | OKX | 18 hr |
| Jun 2, 5:40 AM EDT | Rip Current Statement | OKX | 15 hr |
| Jun 3, 4:14 AM EDT | Coastal Flood Advisory | OKX | 21 hr |
| Jun 3, 5:54 PM EDT | Severe Thunderstorm Warning | OKX | 31 min |
| Jun 4, 4:41 AM EDT | Coastal Flood Advisory | OKX | 21 hr |
| Jun 5, 4:45 AM EDT | Coastal Flood Statement | OKX | 9 hr |
| Jun 5, 4:45 AM EDT | Coastal Flood Advisory | OKX | 22 hr |
| Jun 6, 4:42 AM EDT | Coastal Flood Statement | OKX | 23 hr |
| Jun 6, 4:42 AM EDT | Coastal Flood Advisory | OKX | 20 hr |
| Jun 19, 4:04 PM EDT | Heat Advisory | OKX | 52 hr |
| Jun 22, 1:41 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 22, 2:16 PM EDT | Areal Flood Advisory | OKX | 89 min |
| Jun 22, 4:33 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Jun 22, 6:42 PM EDT | Mesoscale Discussion | SPC | 63 min |
| Jun 23, 3:22 AM EDT | Areal Flood Advisory | OKX | 81 min |
| Jun 25, 3:44 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 25, 6:21 AM EDT | Mesoscale Discussion | SPC | 24 min |
| Jun 25, 6:39 AM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 25, 7:43 AM EDT | Special Weather Statement | OKX | 62 min |
| Jun 25, 8:44 AM EDT | Areal Flood Advisory | OKX | 2 hr |
| Jun 25, 9:16 AM EDT | Severe Thunderstorm Warning | OKX | 29 min |
| Jun 25, 9:36 AM EDT | Areal Flood Advisory | OKX | 54 min |
| Jun 25, 4:57 PM EDT | Areal Flood Advisory | OKX | 71 min |
| Jun 25, 5:49 PM EDT | Severe Thunderstorm Warning | OKX | 41 min |
| Jun 25, 6:01 PM EDT | Areal Flood Advisory | OKX | 59 min |
| Jun 28, 3:35 PM EDT | Heat Advisory | OKX | 27 hr |
| Jun 29, 5:46 AM EDT | Special Weather Statement | OKX | 59 min |
| Jul 1, 1:35 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 1, 3:25 PM EDT | Mesoscale Discussion | SPC | 95 min |
| Jul 1, 5:21 PM EDT | Special Weather Statement | OKX | 39 min |
| Jul 1, 5:28 PM EDT | Severe Thunderstorm Warning | OKX | 47 min |
| Jul 1, 5:43 PM EDT | Areal Flood Advisory | OKX | 62 min |
| Jul 1, 5:43 PM EDT | Severe Thunderstorm Warning | OKX | 47 min |
| Jul 1, 6:09 PM EDT | Severe Thunderstorm Warning | OKX | 51 min |
| Jul 1, 6:22 PM EDT | Mesoscale Discussion | SPC | 83 min |
| Jul 4, 10:33 PM EDT | Special Weather Statement | OKX | 27 min |
| Jul 4, 11:17 PM EDT | Special Weather Statement | OKX | 28 min |
| Jul 7, 11:41 AM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 7, 1:36 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Jul 7, 3:57 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 7, 8:58 PM EDT | Special Weather Statement | OKX | 62 min |
| Jul 7, 9:19 PM EDT | Severe Thunderstorm Warning | OKX | 26 min |
| Jul 15, 3:50 PM EDT | Heat Advisory | OKX | 3 days |
| Jul 15, 6:44 PM EDT | Areal Flood Advisory | OKX | 61 min |
| Jul 15, 6:44 PM EDT | Special Weather Statement | OKX | 61 min |
| Jul 15, 6:48 PM EDT | Severe Thunderstorm Warning | OKX | 42 min |
| Jul 18, 10:25 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 18, 12:20 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jul 18, 2:46 PM EDT | Mesoscale Discussion | SPC | 89 min |
| Jul 18, 3:23 PM EDT | Severe Thunderstorm Warning | OKX | 52 min |
| Jul 18, 4:10 PM EDT | Areal Flood Advisory | OKX | 2 hr |
| Jul 18, 4:15 PM EDT | Severe Thunderstorm Warning | OKX | 60 min |
| Jul 18, 4:50 PM EDT | Mesoscale Discussion | SPC | 85 min |
| Jul 20, 5:35 AM EDT | Rip Current Statement | OKX | 38 hr |
| Jul 20, 4:29 PM EDT | Coastal Flood Statement | OKX | 10 hr |
| Jul 23, 9:52 AM EDT | Special Weather Statement | OKX | 53 min |
| Jul 24, 6:01 PM EDT | Severe Thunderstorm Warning | OKX | 44 min |
| Jul 24, 6:46 PM EDT | Special Weather Statement | OKX | 59 min |
| Jul 25, 4:45 PM EDT | Rip Current Statement | OKX | 28 hr |
| Jul 26, 3:37 PM EDT | Mesoscale Discussion | SPC | 113 min |
| Jul 26, 3:57 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 26, 6:04 PM EDT | Mesoscale Discussion | SPC | 86 min |
| Jul 26, 7:14 PM EDT | Severe Thunderstorm Warning | OKX | 91 min |
| Jul 26, 7:28 PM EDT | Mesoscale Discussion | SPC | 92 min |
| Jul 27, 2:13 PM EDT | Rip Current Statement | OKX | 7 hr |
| Jul 28, 8:43 AM EDT | Areal Flood Advisory | OKX | 2 hr |
| Jul 28, 8:49 AM EDT | Areal Flood Advisory | OKX | 116 min |
| Jul 28, 5:04 PM EDT | Areal Flood Advisory | OKX | 116 min |
| Jul 31, 3:55 PM EDT | Coastal Flood Statement | OKX | 8 hr |
| Aug 3, 12:04 PM EDT | Special Weather Statement | OKX | 41 min |
| Aug 3, 12:28 PM EDT | Special Weather Statement | OKX | 32 min |
| Aug 4, 4:07 PM EDT | Rip Current Statement | OKX | 28 hr |
| Aug 5, 6:38 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 10, 8:21 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 10, 1:18 PM EDT | Areal Flood Advisory | OKX | 87 min |
| Aug 10, 1:33 PM EDT | Tornado Warning | OKX | 8 min |
| Aug 10, 1:56 PM EDT | Tornado Warning | OKX | 19 min |
| Aug 10, 2:00 PM EDT | Flash Flood Warning | OKX | 2 hr |
| Aug 10, 2:03 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Aug 10, 2:23 PM EDT | Special Weather Statement | OKX | 52 min |
| Aug 10, 2:24 PM EDT | Areal Flood Advisory | OKX | 81 min |
| Aug 10, 2:47 PM EDT | Flash Flood Warning | OKX | 88 min |
| Aug 10, 3:19 PM EDT | Tornado Warning | OKX | 26 min |
| Aug 11, 5:26 AM EDT | Rip Current Statement | OKX | 16 hr |
| Aug 12, 5:28 AM EDT | Rip Current Statement | OKX | 16 hr |
| Aug 15, 1:28 AM EDT | Areal Flood Advisory | OKX | 92 min |
| Aug 15, 1:32 AM EDT | Special Weather Statement | OKX | 58 min |
| Aug 15, 2:21 AM EDT | Special Weather Statement | OKX | 54 min |
| Aug 15, 7:50 AM EDT | Special Weather Statement | OKX | 70 min |
| Aug 15, 11:25 AM EDT | Severe Thunderstorm Warning | OKX | 50 min |
| Aug 15, 11:59 AM EDT | Special Weather Statement | OKX | 61 min |
| Aug 15, 12:09 PM EDT | Severe Thunderstorm Warning | OKX | 51 min |
| Aug 15, 12:12 PM EDT | Flash Flood Warning | OKX | 78 min |
| Aug 15, 12:21 PM EDT | Areal Flood Advisory | OKX | 54 min |
| Aug 15, 12:21 PM EDT | Severe Thunderstorm Warning | OKX | 54 min |
| Aug 15, 1:50 PM EDT | Areal Flood Advisory | OKX | 85 min |
| Aug 27, 3:03 PM EDT | Special Weather Statement | OKX | 57 min |
| Aug 27, 5:30 PM EDT | Special Weather Statement | OKX | 45 min |
| Sep 4, 4:27 AM EDT | Rip Current Statement | OKX | 12 hr |
| Sep 4, 4:34 AM EDT | Areal Flood Advisory | OKX | 84 min |
| Sep 4, 6:57 AM EDT | Areal Flood Advisory | OKX | 4 hr |
| Sep 4, 10:22 AM EDT | Areal Flood Advisory | OKX | 53 min |
| Sep 4, 4:55 PM EDT | Rip Current Statement | OKX | 4 days |
| Sep 5, 1:09 PM EDT | Areal Flood Advisory | OKX | 113 min |
| Sep 5, 2:12 PM EDT | Mesoscale Discussion | SPC | 63 min |
| Sep 8, 10:39 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 8, 11:18 AM EDT | Tornado Watch | SPC | 10 hr |
| Sep 8, 6:17 PM EDT | Mesoscale Discussion | SPC | 58 min |
| Sep 8, 7:36 PM EDT | Special Weather Statement | OKX | 54 min |
| Sep 8, 8:40 PM EDT | Special Weather Statement | OKX | 65 min |
| Sep 9, 3:31 AM EDT | Rip Current Statement | OKX | 59 hr |
| Sep 16, 3:30 AM EDT | Rip Current Statement | OKX | 64 hr |
| Sep 17, 3:48 PM EDT | High Wind Watch | OKX | 12 hr |
| Sep 18, 3:45 AM EDT | Wind Advisory | OKX | 22 hr |
| Sep 18, 3:38 PM EDT | Tornado Watch | SPC | 8 hr |
| Sep 18, 4:01 PM EDT | Coastal Flood Advisory | OKX | 8 hr |
| Sep 18, 4:21 PM EDT | Mesoscale Discussion | SPC | 114 min |
| Sep 18, 7:42 PM EDT | Mesoscale Discussion | SPC | 63 min |
| Sep 18, 8:21 PM EDT | Areal Flood Advisory | OKX | 54 min |
| Sep 18, 9:04 PM EDT | Areal Flood Advisory | OKX | 86 min |
| Sep 18, 9:09 PM EDT | Severe Thunderstorm Warning | OKX | 51 min |
| Sep 18, 9:34 PM EDT | Tornado Warning | OKX | 26 min |
| Sep 18, 9:47 PM EDT | Flash Flood Warning | OKX | 88 min |
| Sep 18, 9:58 PM EDT | Severe Thunderstorm Warning | OKX | 62 min |
| Sep 18, 10:00 PM EDT | Mesoscale Discussion | SPC | 60 min |
| Sep 18, 10:41 PM EDT | Severe Thunderstorm Warning | OKX | 22 min |
| Sep 18, 11:21 PM EDT | Areal Flood Advisory | OKX | 54 min |
| Sep 19, 12:18 AM EDT | Areal Flood Advisory | OKX | 117 min |
| Sep 21, 3:48 PM EDT | Rip Current Statement | OKX | 28 hr |
| Sep 25, 3:50 AM EDT | Rip Current Statement | OKX | 16 hr |
| Sep 27, 4:37 PM EDT | Rip Current Statement | OKX | 27 hr |
| Sep 28, 10:46 AM EDT | Areal Flood Advisory | OKX | 44 min |
| Sep 28, 11:49 AM EDT | Severe Thunderstorm Warning | OKX | 56 min |
| Sep 28, 12:48 PM EDT | Special Weather Statement | OKX | 57 min |
| Sep 28, 12:52 PM EDT | Areal Flood Advisory | OKX | 53 min |
| Oct 3, 3:50 AM EDT | Dense Fog Advisory | OKX | 6 hr |
| Oct 18, 8:37 PM EDT | Coastal Flood Advisory | OKX | 19 hr |
| Oct 19, 11:50 PM EDT | Mesoscale Discussion | SPC | 115 min |
| Oct 20, 6:43 AM EDT | Dense Fog Advisory | OKX | 2 hr |
| Oct 27, 5:46 AM EDT | Coastal Flood Watch | OKX | 12 hr |
| Oct 27, 4:36 PM EDT | High Wind Watch | OKX | 12 hr |
| Oct 27, 4:58 PM EDT | Flood Watch | OKX | 52 hr |
| Oct 27, 5:34 PM EDT | Coastal Flood Warning | OKX | 69 hr |
| Oct 27, 5:34 PM EDT | High Surf Advisory | OKX | 12 hr |
| Oct 28, 4:35 AM EDT | High Wind Warning | OKX | 47 hr |
| Oct 30, 12:09 AM EDT | Wind Advisory | OKX | 12 hr |
| Oct 30, 2:17 PM EDT | Coastal Flood Statement | OKX | 13 hr |
| Oct 31, 3:36 AM EDT | Coastal Flood Statement | OKX | 8 hr |
| Nov 5, 4:20 PM EST | High Wind Watch | OKX | 24 hr |
| Nov 5, 4:33 PM EST | Coastal Flood Watch | OKX | 24 hr |
| Nov 6, 3:22 PM EST | High Wind Warning | OKX | 30 hr |
| Nov 6, 3:22 PM EST | Wind Advisory | OKX | 33 hr |
| Nov 6, 3:27 PM EST | Winter Weather Advisory | OKX | 38 hr |
| Nov 6, 4:16 PM EST | Coastal Flood Warning | OKX | 26 hr |
| Nov 6, 4:16 PM EST | High Surf Advisory | OKX | 37 hr |
| Nov 7, 4:23 PM EST | Coastal Flood Advisory | OKX | 13 hr |
| Nov 12, 2:03 AM EST | Dense Fog Advisory | OKX | 6 hr |
| Nov 13, 3:47 PM EST | Coastal Flood Statement | OKX | 20 hr |
| Nov 14, 3:36 PM EST | Coastal Flood Statement | OKX | 21 hr |
| Nov 15, 3:07 PM EST | Coastal Flood Statement | OKX | 23 hr |
| Dec 2, 2:23 AM EST | Dense Fog Advisory | OKX | 9 hr |
| Dec 9, 3:39 PM EST | Coastal Flood Statement | OKX | 17 hr |
| Dec 12, 8:15 PM EST | Coastal Flood Statement | OKX | 13 hr |
| Dec 20, 3:30 PM EST | Wind Advisory | OKX | 5 hr |
| Dec 20, 3:34 PM EST | Coastal Flood Statement | OKX | 15 hr |
| Dec 20, 8:59 PM EST | High Wind Warning | OKX | 16 hr |
| Dec 21, 9:22 AM EST | Coastal Flood Statement | OKX | 3 hr |
| Dec 21, 12:05 PM EST | Coastal Flood Statement | OKX | 6 hr |
| Dec 21, 7:40 PM EST | Wind Advisory | OKX | 20 hr |
| Dec 21, 7:48 PM EST | Coastal Flood Statement | OKX | 12 hr |
| Dec 25, 4:05 AM EST | High Wind Watch | OKX | 24 hr |
| Dec 25, 8:14 AM EST | Coastal Flood Watch | OKX | 23 hr |
| Dec 25, 8:14 AM EST | Coastal Flood Watch | OKX | 32 hr |
| Dec 26, 4:18 AM EST | High Wind Warning | OKX | 25 hr |
| Dec 26, 7:19 AM EST | Coastal Flood Warning | OKX | 18 hr |
| Dec 26, 7:19 AM EST | Coastal Flood Advisory | OKX | 15 hr |
| Dec 26, 7:19 AM EST | Coastal Flood Advisory | OKX | 30 hr |
| Dec 26, 4:09 PM EST | Coastal Flood Warning | OKX | 20 hr |
| Dec 28, 3:44 PM EST | Winter Weather Advisory | OKX | 28 hr |
| Dec 29, 2:22 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Dec 29, 3:37 PM EST | Wind Advisory | OKX | 26 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 | 19 |
| Tornado Warning | 4 |
| Severe Thunderstorm Watch | 6 |
| Tornado Watch | 2 |
| Mesoscale Discussion | 26 |
| Special Weather Statement | 21 |
| Flooding | |
| Flash Flood Warning | 4 |
| Flood Watch | 2 |
| Areal Flood Advisory | 29 |
| Winter | |
| Winter Storm Warning | 1 |
| Freezing Rain Advisory | 1 |
| Winter Weather Advisory | 4 |
| Heat | |
| Heat Advisory | 3 |
| Cold | |
| Freeze Warning | 2 |
| Freeze Watch | 2 |
| Wind and dust | |
| High Wind Warning | 5 |
| High Wind Watch | 5 |
| Wind Advisory | 11 |
| Fog and smoke | |
| Dense Fog Advisory | 13 |
| Coast and beach | |
| Coastal Flood Warning | 4 |
| Coastal Flood Watch | 4 |
| Coastal Flood Advisory | 13 |
| High Surf Advisory | 3 |
| Coastal Flood Statement | 21 |
| Rip Current Statement | 14 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20112013
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.