Alert archive / Massachusetts / Berkshire County
Weather alerts in Berkshire County, Massachusetts, 2011
233 weather alerts in 2011, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Berkshire County and its neighbors
Each county as a circle sized by its count in 2011. Tap one for its archive.
- Alerts
- 233
- Warnings
- 77
- Watches
- 29
- Advisories
- 55
- Busiest month
- June44 alerts
- Busiest day
- June 9, 201114 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 1 tornado warnings covering Berkshire County in 2011 had a tornado report inside them.
Berkshire County, 2011
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 38 | 31 | 18% | 34 | 94% | 30 min |
| Flash flood warnings | 6 | 3 | 50% | 3 | 67% | 242 min |
Each office's whole area, 2011
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Albany, NY: tornado warnings | 11 | 3 | 73% | 9 | 56% | 25 min |
| NWS Albany, NY: severe thunderstorm warnings | 189 | 118 | 38% | 402 | 88% | 29 min |
| NWS Albany, NY: flash flood warnings | 49 | 24 | 51% | 94 | 69% | 95 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 6, 4:33 AM EST | Winter Storm Watch | ALY | 23 hr |
| Jan 7, 3:30 AM EST | Winter Weather Advisory | ALY | 31 hr |
| Jan 7, 11:46 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Jan 10, 10:23 AM EST | Winter Storm Watch | ALY | 26 hr |
| Jan 11, 3:40 AM EST | Winter Storm Warning | ALY | 42 hr |
| Jan 12, 6:27 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Jan 17, 4:07 AM EST | Winter Storm Watch | ALY | 12 hr |
| Jan 17, 4:23 PM EST | Winter Storm Warning | ALY | 34 hr |
| Jan 18, 3:33 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Jan 18, 8:01 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Jan 18, 12:37 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Jan 20, 3:57 AM EST | Winter Weather Advisory | ALY | 32 hr |
| Jan 20, 3:30 PM EST | Winter Storm Warning | ALY | 21 hr |
| Jan 21, 12:30 AM EST | Mesoscale Discussion | SPC | 5 hr |
| Jan 21, 3:32 PM EST | Special Weather Statement | ALY | 58 min |
| Jan 22, 4:04 PM EST | Wind Chill Watch | ALY | 24 hr |
| Jan 23, 4:14 PM EST | Wind Chill Warning | ALY | 17 hr |
| Jan 25, 3:54 AM EST | Winter Storm Watch | ALY | 24 hr |
| Jan 25, 4:43 AM EST | Winter Weather Advisory | ALY | 7 hr |
| Jan 26, 3:49 AM EST | Winter Weather Advisory | ALY | 25 hr |
| Jan 31, 3:39 AM EST | Winter Storm Watch | ALY | 12 hr |
| Jan 31, 3:15 PM EST | Winter Storm Warning | ALY | 52 hr |
| Feb 1, 2:42 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Feb 2, 6:13 PM EST | Special Weather Statement | ALY | 47 min |
| Feb 5, 4:39 AM EST | Winter Weather Advisory | ALY | 22 hr |
| Feb 5, 8:45 PM EST | Special Weather Statement | ALY | 60 min |
| Feb 7, 3:46 PM EST | Winter Weather Advisory | ALY | 23 hr |
| Feb 12, 4:15 PM EST | Special Weather Statement | ALY | 30 min |
| Feb 12, 4:57 PM EST | Special Weather Statement | ALY | 33 min |
| Feb 14, 4:35 AM EST | Wind Advisory | ALY | 24 hr |
| Feb 14, 3:10 PM EST | Wind Chill Advisory | ALY | 13 hr |
| Feb 14, 3:15 PM EST | High Wind Warning | ALY | 13 hr |
| Feb 18, 4:03 AM EST | Wind Advisory | ALY | 41 hr |
| Feb 18, 3:36 PM EST | High Wind Warning | ALY | 30 hr |
| Feb 19, 5:48 AM EST | Special Weather Statement | ALY | 57 min |
| Feb 20, 4:07 AM EST | Winter Weather Advisory | ALY | 32 hr |
| Feb 24, 4:31 AM EST | Winter Storm Warning | ALY | 39 hr |
| Feb 24, 10:16 AM EST | Flood Watch | ALY | 28 hr |
| Feb 24, 4:14 PM EST | Winter Weather Advisory | ALY | 27 hr |
| Feb 26, 2:20 PM EST | Winter Weather Advisory | ALY | 20 hr |
| Feb 27, 2:47 PM EST | Winter Weather Advisory | ALY | 21 hr |
| Feb 28, 5:19 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Feb 28, 9:13 AM EST | Areal Flood Advisory | ALY | 6 hr |
| Mar 5, 4:01 PM EST | Flood Watch | ALY | 42 hr |
| Mar 6, 3:53 AM EST | Winter Weather Advisory | ALY | 32 hr |
| Mar 6, 12:19 PM EST | River Flood Warning | ALY | 24 hr |
| Mar 6, 12:59 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Mar 6, 1:52 PM EST | Areal Flood Advisory | ALY | 6 hr |
| Mar 6, 7:13 PM EST | Areal Flood Warning | ALY | 12 hr |
| Mar 6, 7:32 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Mar 7, 12:32 AM EST | River Flood Warning | ALY | 11 hr |
| Mar 7, 6:58 AM EST | Areal Flood Warning | ALY | 24 hr |
| Mar 7, 5:19 PM EST | River Flood Warning | ALY | 9 hr |
| Mar 9, 1:00 PM EST | Flood Watch | ALY | 53 hr |
| Mar 9, 3:39 PM EST | Winter Weather Advisory | ALY | 21 hr |
| Mar 10, 3:52 PM EST | Wind Advisory | ALY | 12 hr |
| Mar 10, 9:27 PM EST | Areal Flood Warning | ALY | 36 hr |
| Mar 15, 4:29 PM EDT | Winter Weather Advisory | ALY | 20 hr |
| Mar 17, 3:45 PM EDT | Wind Advisory | ALY | 26 hr |
| Mar 20, 2:44 PM EDT | Winter Weather Advisory | ALY | 25 hr |
| Mar 23, 3:40 AM EDT | Winter Weather Advisory | ALY | 19 hr |
| Mar 30, 4:22 AM EDT | Winter Storm Watch | ALY | 23 hr |
| Mar 31, 3:42 AM EDT | Winter Storm Warning | ALY | 34 hr |
| Apr 3, 3:01 PM EDT | Flood Watch | ALY | 39 hr |
| Apr 15, 3:56 PM EDT | Wind Advisory | ALY | 37 hr |
| Apr 16, 11:57 PM EDT | Areal Flood Advisory | ALY | 6 hr |
| Apr 17, 5:14 AM EDT | Wind Advisory | ALY | 16 hr |
| Apr 20, 9:16 AM EDT | Special Weather Statement | ALY | 29 min |
| Apr 27, 12:48 AM EDT | Special Weather Statement | ALY | 27 min |
| Apr 28, 9:45 AM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Apr 28, 11:49 AM EDT | Mesoscale Discussion | SPC | 56 min |
| Apr 28, 2:18 PM EDT | Special Weather Statement | ALY | 27 min |
| May 16, 3:33 PM EDT | Flood Watch | ALY | 61 hr |
| May 20, 2:18 PM EDT | Flash Flood Warning | ALY | 6 hr |
| May 20, 6:59 PM EDT | Flash Flood Warning | ALY | 3 hr |
| May 24, 1:34 PM EDT | Mesoscale Discussion | SPC | 116 min |
| May 24, 4:17 PM EDT | Special Weather Statement | ALY | 28 min |
| May 24, 5:07 PM EDT | Special Weather Statement | ALY | 53 min |
| May 26, 10:44 PM EDT | Severe Thunderstorm Warning | ALY | 61 min |
| May 26, 11:23 PM EDT | Severe Thunderstorm Warning | ALY | 67 min |
| May 26, 11:32 PM EDT | Severe Thunderstorm Warning | ALY | 58 min |
| May 27, 12:24 PM EDT | Mesoscale Discussion | SPC | 96 min |
| May 27, 2:00 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 27, 5:49 PM EDT | Mesoscale Discussion | SPC | 56 min |
| May 30, 12:28 AM EDT | Mesoscale Discussion | SPC | 92 min |
| Jun 1, 10:02 AM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 1, 12:26 PM EDT | Mesoscale Discussion | SPC | 64 min |
| Jun 1, 2:28 PM EDT | Severe Thunderstorm Warning | ALY | 62 min |
| Jun 1, 3:30 PM EDT | Severe Thunderstorm Warning | ALY | 30 min |
| Jun 1, 3:41 PM EDT | Severe Thunderstorm Warning | ALY | 42 min |
| Jun 1, 3:47 PM EDT | Flash Flood Warning | ALY | 81 min |
| Jun 1, 4:17 PM EDT | Mesoscale Discussion | SPC | 88 min |
| Jun 1, 5:39 PM EDT | Severe Thunderstorm Warning | ALY | 66 min |
| Jun 1, 7:09 PM EDT | Mesoscale Discussion | SPC | 96 min |
| Jun 1, 7:13 PM EDT | Severe Thunderstorm Warning | ALY | 62 min |
| Jun 8, 3:46 PM EDT | Mesoscale Discussion | SPC | 59 min |
| Jun 8, 4:15 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 8, 6:07 PM EDT | Severe Thunderstorm Warning | ALY | 68 min |
| Jun 8, 6:31 PM EDT | Severe Thunderstorm Warning | ALY | 20 min |
| Jun 8, 6:36 PM EDT | Severe Thunderstorm Warning | ALY | 54 min |
| Jun 8, 7:31 PM EDT | Severe Thunderstorm Warning | ALY | 59 min |
| Jun 8, 7:45 PM EDT | Mesoscale Discussion | SPC | 90 min |
| Jun 8, 8:02 PM EDT | Severe Thunderstorm Warning | ALY | 43 min |
| Jun 8, 8:07 PM EDT | Severe Thunderstorm Warning | ALY | 38 min |
| Jun 8, 8:28 PM EDT | Severe Thunderstorm Warning | ALY | 62 min |
| Jun 9, 12:21 AM EDT | Severe Thunderstorm Warning | ALY | 42 min |
| Jun 9, 9:13 AM EDT | Severe Thunderstorm Warning | ALY | 62 min |
| Jun 9, 11:33 AM EDT | Mesoscale Discussion | SPC | 57 min |
| Jun 9, 12:06 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 9, 2:08 PM EDT | Severe Thunderstorm Warning | ALY | 67 min |
| Jun 9, 2:55 PM EDT | Severe Thunderstorm Warning | ALY | 65 min |
| Jun 9, 3:10 PM EDT | Severe Thunderstorm Warning | ALY | 50 min |
| Jun 9, 3:18 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Jun 9, 3:43 PM EDT | Severe Thunderstorm Warning | ALY | 62 min |
| Jun 9, 3:54 PM EDT | Severe Thunderstorm Warning | ALY | 51 min |
| Jun 9, 7:17 PM EDT | Mesoscale Discussion | SPC | 58 min |
| Jun 11, 9:10 AM EDT | Areal Flood Advisory | ALY | 3 hr |
| Jun 15, 5:43 PM EDT | Special Weather Statement | BOX | 47 min |
| Jun 17, 3:34 PM EDT | Areal Flood Advisory | ALY | 3 hr |
| Jun 17, 4:07 PM EDT | Special Weather Statement | ALY | 53 min |
| Jun 17, 4:42 PM EDT | Areal Flood Advisory | ALY | 2 hr |
| Jun 17, 4:57 PM EDT | Areal Flood Advisory | ALY | 2 hr |
| Jun 22, 4:10 AM EDT | Flash Flood Watch | ALY | 37 hr |
| Jun 25, 3:44 PM EDT | Special Weather Statement | ALY | 46 min |
| Jun 25, 4:29 PM EDT | Areal Flood Advisory | ALY | 3 hr |
| Jun 28, 10:40 PM EDT | Special Weather Statement | ALY | 35 min |
| Jun 28, 11:14 PM EDT | Severe Thunderstorm Warning | ALY | 61 min |
| Jun 28, 11:41 PM EDT | Special Weather Statement | ALY | 34 min |
| Jun 29, 12:14 AM EDT | Severe Thunderstorm Warning | ALY | 46 min |
| Jul 3, 12:00 PM EDT | Special Weather Statement | ALY | 45 min |
| Jul 6, 1:29 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 6, 4:25 PM EDT | Severe Thunderstorm Warning | ALY | 45 min |
| Jul 6, 5:35 PM EDT | Severe Thunderstorm Warning | ALY | 40 min |
| Jul 6, 5:55 PM EDT | Severe Thunderstorm Warning | ALY | 65 min |
| Jul 6, 6:03 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Jul 6, 6:41 PM EDT | Special Weather Statement | ALY | 64 min |
| Jul 6, 7:33 PM EDT | Special Weather Statement | ALY | 27 min |
| Jul 8, 1:58 PM EDT | Special Weather Statement | ALY | 62 min |
| Jul 20, 3:52 PM EDT | Heat Advisory | ALY | 28 hr |
| Jul 26, 11:05 AM EDT | Mesoscale Discussion | SPC | 55 min |
| Jul 26, 11:28 AM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 26, 1:34 PM EDT | Mesoscale Discussion | SPC | 86 min |
| Jul 26, 2:42 PM EDT | Severe Thunderstorm Warning | ALY | 63 min |
| Jul 26, 3:21 PM EDT | Severe Thunderstorm Warning | ALY | 39 min |
| Jul 26, 3:37 PM EDT | Areal Flood Advisory | ALY | 91 min |
| Jul 26, 3:39 PM EDT | Mesoscale Discussion | SPC | 66 min |
| Jul 26, 6:17 PM EDT | Mesoscale Discussion | SPC | 58 min |
| Aug 1, 12:07 PM EDT | Mesoscale Discussion | SPC | 53 min |
| Aug 1, 2:15 PM EDT | Mesoscale Discussion | SPC | 90 min |
| Aug 1, 6:18 PM EDT | Mesoscale Discussion | SPC | 57 min |
| Aug 14, 3:59 PM EDT | Flood Watch | ALY | 30 hr |
| Aug 16, 1:21 AM EDT | Areal Flood Advisory | ALY | 3 hr |
| Aug 19, 1:04 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Aug 19, 3:17 PM EDT | Special Weather Statement | ALY | 28 min |
| Aug 19, 4:01 PM EDT | Severe Thunderstorm Warning | ALY | 44 min |
| Aug 19, 4:04 PM EDT | Special Weather Statement | ALY | 26 min |
| Aug 19, 4:21 PM EDT | Areal Flood Advisory | ALY | 3 hr |
| Aug 19, 4:41 PM EDT | Special Weather Statement | ALY | 34 min |
| Aug 19, 5:12 PM EDT | Special Weather Statement | ALY | 33 min |
| Aug 19, 5:24 PM EDT | Severe Thunderstorm Warning | ALY | 66 min |
| Aug 19, 5:53 PM EDT | Special Weather Statement | ALY | 37 min |
| Aug 19, 6:18 PM EDT | Severe Thunderstorm Warning | ALY | 41 min |
| Aug 19, 6:41 PM EDT | Special Weather Statement | ALY | 34 min |
| Aug 19, 6:42 PM EDT | Mesoscale Discussion | SPC | 63 min |
| Aug 21, 11:54 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 21, 12:57 PM EDT | Severe Thunderstorm Warning | ALY | 63 min |
| Aug 21, 1:20 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Aug 21, 1:51 PM EDT | Severe Thunderstorm Warning | ALY | 54 min |
| Aug 21, 1:59 PM EDT | Severe Thunderstorm Warning | ALY | 61 min |
| Aug 21, 4:34 PM EDT | Mesoscale Discussion | SPC | 116 min |
| Aug 21, 6:19 PM EDT | Special Weather Statement | ALY | 26 min |
| Aug 21, 6:25 PM EDT | Severe Thunderstorm Warning | ALY | 65 min |
| Aug 21, 7:02 PM EDT | Areal Flood Advisory | ALY | 4 hr |
| Aug 21, 7:06 PM EDT | Tornado Warning | ALY | 39 min |
| Aug 21, 7:12 PM EDT | Mesoscale Discussion | SPC | 63 min |
| Aug 21, 7:47 PM EDT | Flash Flood Warning | ALY | 3 hr |
| Aug 21, 7:57 PM EDT | Special Weather Statement | ALY | 48 min |
| Aug 21, 8:21 PM EDT | Special Weather Statement | ALY | 24 min |
| Aug 26, 4:47 AM EDT | Flood Watch | ALY | 66 hr |
| Aug 26, 5:21 AM EDT | Tropical Storm Watch | ALY | 36 hr |
| Aug 26, 5:43 PM EDT | Tropical Storm Warning | ALY | 53 hr |
| Aug 28, 4:52 AM EDT | Flash Flood Warning | ALY | 6 hr |
| Aug 28, 4:58 AM EDT | River Flood Warning | ALY | 22 hr |
| Aug 28, 8:38 AM EDT | Areal Flood Warning | ALY | 12 hr |
| Aug 28, 9:19 AM EDT | River Flood Warning | ALY | 20 hr |
| Aug 28, 10:47 AM EDT | River Flood Warning | ALY | 18 hr |
| Aug 28, 10:49 AM EDT | Areal Flood Warning | ALY | 23 hr |
| Aug 28, 12:51 PM EDT | Flash Flood Warning | ALY | 6 hr |
| Aug 28, 3:42 PM EDT | River Flood Warning | ALY | 44 hr |
| Sep 3, 4:07 AM EDT | Flash Flood Watch | ALY | 3 days |
| Sep 4, 7:46 PM EDT | Severe Thunderstorm Warning | ALY | 56 min |
| Sep 5, 2:45 AM EDT | Special Weather Statement | ALY | 45 min |
| Sep 5, 6:41 PM EDT | Areal Flood Advisory | ALY | 3 hr |
| Sep 6, 2:45 AM EDT | Areal Flood Advisory | ALY | 6 hr |
| Sep 6, 5:30 AM EDT | River Flood Warning | ALY | 5 hr |
| Sep 6, 1:03 PM EDT | Flood Watch | ALY | 47 hr |
| Sep 7, 2:31 AM EDT | Areal Flood Advisory | ALY | 6 hr |
| Sep 7, 8:12 AM EDT | River Flood Warning | ALY | 67 hr |
| Sep 7, 10:50 AM EDT | River Flood Warning | ALY | 8 hr |
| Sep 7, 11:20 AM EDT | River Flood Warning | ALY | 7 hr |
| Sep 8, 2:49 AM EDT | Areal Flood Advisory | ALY | 6 hr |
| Sep 8, 3:49 AM EDT | River Flood Warning | ALY | 10 hr |
| Sep 8, 8:45 AM EDT | Areal Flood Advisory | ALY | 4 hr |
| Sep 16, 3:12 AM EDT | Frost Advisory | ALY | 29 hr |
| Sep 16, 3:12 AM EDT | Freeze Warning | ALY | 29 hr |
| Sep 17, 3:16 AM EDT | Frost Advisory | ALY | 26 hr |
| Sep 22, 3:35 PM EDT | Flood Watch | ALY | 36 hr |
| Sep 23, 4:08 PM EDT | Areal Flood Advisory | ALY | 6 hr |
| Sep 28, 11:14 PM EDT | Areal Flood Advisory | ALY | 3 hr |
| Sep 29, 7:49 AM EDT | Special Weather Statement | ALY | 56 min |
| Sep 29, 8:30 AM EDT | Areal Flood Advisory | ALY | 4 hr |
| Sep 29, 10:46 AM EDT | River Flood Warning | ALY | 4 hr |
| Sep 29, 11:22 AM EDT | Mesoscale Discussion | SPC | 83 min |
| Sep 29, 4:02 PM EDT | Areal Flood Advisory | ALY | 3 hr |
| Sep 29, 4:15 PM EDT | Special Weather Statement | ALY | 60 min |
| Sep 29, 4:19 PM EDT | Severe Thunderstorm Warning | ALY | 56 min |
| Sep 30, 7:02 PM EDT | Special Weather Statement | ALY | 28 min |
| Sep 30, 7:09 PM EDT | Areal Flood Advisory | ALY | 100 min |
| Oct 5, 4:27 AM EDT | Freeze Warning | ALY | 30 hr |
| Oct 14, 2:54 AM EDT | Areal Flood Advisory | ALY | 2 hr |
| Oct 14, 6:20 PM EDT | Special Weather Statement | ALY | 40 min |
| Oct 19, 11:50 AM EDT | Wind Advisory | ALY | 16 hr |
| Oct 28, 4:14 AM EDT | Winter Storm Watch | ALY | 12 hr |
| Oct 28, 4:11 PM EDT | Winter Storm Warning | ALY | 37 hr |
| Oct 29, 1:01 PM EDT | Mesoscale Discussion | SPC | 5 hr |
| Nov 22, 4:54 AM EST | Winter Weather Advisory | ALY | 31 hr |
| Dec 7, 4:01 AM EST | Winter Weather Advisory | ALY | 24 hr |
| Dec 7, 12:09 PM EST | Winter Storm Warning | ALY | 16 hr |
| Dec 7, 10:25 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Dec 14, 3:46 PM EST | Winter Weather Advisory | ALY | 13 hr |
| Dec 16, 2:27 AM EST | Wind Advisory | ALY | 11 hr |
| Dec 22, 3:15 AM EST | Winter Weather Advisory | ALY | 30 hr |
| Dec 28, 3:33 AM EST | Wind Advisory | ALY | 13 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 archive20102012
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.