Alert archive / Maryland / Charles County
Weather alerts in Charles County, Maryland, 2011
268 weather alerts in 2011, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Charles County and its neighbors
Each county as a circle sized by its count in 2011. Tap one for its archive.
- Alerts
- 268
- Warnings
- 90
- Watches
- 47
- Advisories
- 52
- Busiest month
- April47 alerts
- Busiest day
- September 8, 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.
4 of 10 tornado warnings covering Charles County in 2011 had a tornado report inside them; 2 of 2 tornado reports fell inside a warning, on average 7 minutes after it went out.
Charles County, 2011
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 10 | 4 | 60% | 2 | 100% | 7 min |
| Severe thunderstorm warnings | 44 | 31 | 30% | 26 | 96% | 23 min |
| Flash flood warnings | 18 | 12 | 33% | 11 | 91% | 188 min |
Each office's whole area, 2011
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Baltimore/Washington: tornado warnings | 96 | 27 | 72% | 45 | 67% | 11 min |
| NWS Baltimore/Washington: severe thunderstorm warnings | 440 | 335 | 24% | 963 | 78% | 18 min |
| NWS Baltimore/Washington: flash flood warnings | 170 | 99 | 42% | 341 | 84% | 121 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 10, 4:03 AM EST | Winter Storm Watch | LWX | 18 hr |
| Jan 10, 9:39 PM EST | Winter Weather Advisory | LWX | 55 hr |
| Jan 17, 2:44 PM EST | Winter Weather Advisory | LWX | 20 hr |
| Jan 17, 7:44 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Jan 18, 8:19 PM EST | Dense Fog Advisory | LWX | 13 hr |
| Jan 25, 10:16 AM EST | Winter Storm Watch | LWX | 18 hr |
| Jan 26, 3:58 AM EST | Winter Weather Advisory | LWX | 19 hr |
| Jan 26, 2:19 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Jan 31, 2:40 PM EST | Winter Weather Advisory | LWX | 21 hr |
| Feb 8, 3:26 AM EST | Wind Advisory | LWX | 13 hr |
| Feb 13, 11:19 AM EST | Fire Weather Watch | LWX | 15 hr |
| Feb 14, 2:45 AM EST | Wind Advisory | LWX | 22 hr |
| Feb 14, 2:46 AM EST | Red Flag Warning | LWX | 15 hr |
| Feb 18, 3:16 AM EST | Fire Weather Watch | LWX | 11 hr |
| Feb 18, 2:03 PM EST | Red Flag Warning | LWX | 31 hr |
| Feb 18, 5:22 PM EST | High Wind Warning | LWX | 26 hr |
| Feb 18, 5:22 PM EST | Wind Advisory | LWX | 19 hr |
| Feb 19, 6:33 PM EST | Wind Advisory | LWX | 5 hr |
| Feb 21, 11:57 AM EST | Winter Weather Advisory | LWX | 18 hr |
| Feb 24, 1:41 PM EST | Wind Advisory | LWX | 24 hr |
| Feb 24, 8:36 PM EST | High Wind Warning | LWX | 22 hr |
| Feb 25, 11:36 AM EST | Mesoscale Discussion | SPC | 84 min |
| Feb 25, 12:19 PM EST | Severe Thunderstorm Watch | SPC | 3 hr |
| Feb 25, 1:08 PM EST | Special Weather Statement | LWX | 37 min |
| Feb 25, 1:52 PM EST | Severe Thunderstorm Warning | LWX | 38 min |
| Feb 25, 2:40 PM EST | Mesoscale Discussion | SPC | 65 min |
| Feb 28, 8:57 AM EST | Tornado Watch | SPC | 9 hr |
| Feb 28, 12:23 PM EST | Special Weather Statement | LWX | 37 min |
| Feb 28, 12:39 PM EST | Severe Thunderstorm Warning | LWX | 32 min |
| Feb 28, 12:49 PM EST | Mesoscale Discussion | SPC | 56 min |
| Mar 6, 9:08 AM EST | Coastal Flood Advisory | LWX | 12 hr |
| Mar 6, 12:06 PM EST | Mesoscale Discussion | SPC | 84 min |
| Mar 8, 3:14 AM EST | Flood Watch | LWX | 65 hr |
| Mar 9, 3:28 AM EST | Coastal Flood Watch | LWX | 30 hr |
| Mar 9, 2:50 PM EST | Coastal Flood Advisory | LWX | 19 hr |
| Mar 10, 9:46 AM EST | Coastal Flood Warning | LWX | 17 hr |
| Mar 10, 1:25 PM EST | Severe Thunderstorm Watch | SPC | 7 hr |
| Mar 10, 5:48 PM EST | Flash Flood Warning | LWX | 4 hr |
| Mar 10, 6:10 PM EST | Severe Thunderstorm Warning | LWX | 65 min |
| Mar 10, 7:06 PM EST | Severe Thunderstorm Warning | LWX | 54 min |
| Mar 11, 3:13 AM EST | Coastal Flood Advisory | LWX | 12 hr |
| Mar 21, 7:24 PM EDT | Special Weather Statement | LWX | 66 min |
| Mar 21, 7:40 PM EDT | Severe Thunderstorm Warning | LWX | 27 min |
| Mar 23, 8:13 PM EDT | Mesoscale Discussion | SPC | 92 min |
| Mar 23, 8:51 PM EDT | Special Weather Statement | LWX | 24 min |
| Mar 26, 4:09 AM EDT | Winter Weather Advisory | LWX | 30 hr |
| Apr 2, 2:56 PM EDT | Special Weather Statement | LWX | 94 min |
| Apr 2, 3:17 PM EDT | Severe Thunderstorm Warning | LWX | 43 min |
| Apr 3, 9:14 PM EDT | Special Weather Statement | LWX | 31 min |
| Apr 5, 2:13 AM EDT | Mesoscale Discussion | SPC | 32 min |
| Apr 5, 2:18 AM EDT | Tornado Watch | SPC | 8 hr |
| Apr 5, 3:34 AM EDT | Mesoscale Discussion | SPC | 116 min |
| Apr 5, 3:56 AM EDT | Special Weather Statement | LWX | 64 min |
| Apr 5, 4:29 AM EDT | Severe Thunderstorm Warning | LWX | 51 min |
| Apr 5, 4:38 AM EDT | Severe Thunderstorm Warning | LWX | 67 min |
| Apr 5, 4:46 AM EDT | Tornado Warning | LWX | 29 min |
| Apr 5, 4:57 AM EDT | Tornado Warning | LWX | 33 min |
| Apr 5, 5:05 AM EDT | Tornado Warning | LWX | 14 min |
| Apr 5, 9:21 AM EDT | Special Weather Statement | LWX | 54 min |
| Apr 15, 10:52 AM EDT | Coastal Flood Watch | LWX | 26 hr |
| Apr 15, 2:57 PM EDT | Coastal Flood Advisory | LWX | 21 hr |
| Apr 16, 12:22 PM EDT | Coastal Flood Warning | LWX | 23 hr |
| Apr 16, 12:52 PM EDT | Mesoscale Discussion | SPC | 113 min |
| Apr 16, 1:29 PM EDT | Tornado Watch | SPC | 8 hr |
| Apr 16, 4:29 PM EDT | Mesoscale Discussion | SPC | 31 min |
| Apr 16, 6:38 PM EDT | Mesoscale Discussion | SPC | 97 min |
| Apr 16, 8:12 PM EDT | Mesoscale Discussion | SPC | 63 min |
| Apr 22, 2:14 PM EDT | Coastal Flood Advisory | LWX | 26 hr |
| Apr 24, 2:12 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Apr 24, 3:40 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Apr 24, 6:10 PM EDT | Mesoscale Discussion | SPC | 65 min |
| Apr 24, 8:06 PM EDT | Severe Thunderstorm Warning | LWX | 39 min |
| Apr 24, 9:02 PM EDT | Mesoscale Discussion | SPC | 58 min |
| Apr 27, 9:51 AM EDT | Flash Flood Watch | LWX | 29 hr |
| Apr 27, 1:23 PM EDT | Tornado Watch | SPC | 5 hr |
| Apr 27, 4:39 PM EDT | Mesoscale Discussion | SPC | 66 min |
| Apr 27, 5:46 PM EDT | Tornado Warning | LWX | 29 min |
| Apr 27, 6:00 PM EDT | Mesoscale Discussion | SPC | 60 min |
| Apr 27, 6:08 PM EDT | Tornado Warning | LWX | 37 min |
| Apr 27, 6:15 PM EDT | Tornado Watch | SPC | 6 hr |
| Apr 27, 6:38 PM EDT | Tornado Warning | LWX | 37 min |
| Apr 27, 7:21 PM EDT | Flash Flood Warning | LWX | 69 min |
| Apr 27, 7:24 PM EDT | Tornado Warning | LWX | 36 min |
| Apr 27, 7:55 PM EDT | Mesoscale Discussion | SPC | 65 min |
| Apr 28, 12:41 AM EDT | Tornado Watch | SPC | 7 hr |
| Apr 28, 7:38 AM EDT | Tornado Watch | SPC | 7 hr |
| Apr 28, 10:38 AM EDT | Severe Thunderstorm Warning | LWX | 52 min |
| Apr 28, 10:44 AM EDT | Mesoscale Discussion | SPC | 61 min |
| Apr 28, 10:54 AM EDT | Special Weather Statement | LWX | 51 min |
| Apr 28, 10:54 AM EDT | Severe Thunderstorm Warning | LWX | 66 min |
| Apr 28, 11:26 AM EDT | Severe Thunderstorm Warning | LWX | 18 min |
| Apr 28, 11:38 AM EDT | Coastal Flood Advisory | LWX | 7 hr |
| Apr 28, 2:00 PM EDT | Mesoscale Discussion | SPC | 60 min |
| May 3, 3:29 AM EDT | Coastal Flood Advisory | LWX | 16 hr |
| May 6, 6:27 PM EDT | Special Weather Statement | LWX | 33 min |
| May 11, 3:35 AM EDT | Coastal Flood Advisory | LWX | 5 days |
| May 14, 4:22 AM EDT | Coastal Flood Watch | LWX | 11 hr |
| May 15, 1:38 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 16, 7:39 PM EDT | Coastal Flood Advisory | LWX | 64 hr |
| May 17, 3:45 AM EDT | Flash Flood Watch | LWX | 44 hr |
| May 17, 3:47 AM EDT | Coastal Flood Watch | LWX | 11 hr |
| May 17, 11:14 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 18, 11:44 AM EDT | Coastal Flood Watch | LWX | 7 hr |
| May 18, 11:55 AM EDT | Mesoscale Discussion | SPC | 65 min |
| May 18, 12:55 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| May 18, 3:08 PM EDT | Mesoscale Discussion | SPC | 67 min |
| May 18, 5:15 PM EDT | Severe Thunderstorm Warning | LWX | 45 min |
| May 18, 5:56 PM EDT | Severe Thunderstorm Warning | LWX | 49 min |
| May 18, 6:01 PM EDT | Mesoscale Discussion | SPC | 89 min |
| May 19, 4:36 AM EDT | Flash Flood Watch | LWX | 14 hr |
| May 23, 6:34 AM EDT | Coastal Flood Advisory | LWX | 29 hr |
| May 23, 10:48 AM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| May 23, 2:33 PM EDT | Mesoscale Discussion | SPC | 87 min |
| May 23, 4:40 PM EDT | Mesoscale Discussion | SPC | 95 min |
| May 24, 12:42 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| May 24, 3:59 PM EDT | Special Weather Statement | LWX | 31 min |
| May 26, 3:48 AM EDT | Coastal Flood Advisory | LWX | 27 hr |
| May 27, 12:57 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| May 27, 6:14 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 27, 6:40 PM EDT | Severe Thunderstorm Warning | LWX | 35 min |
| May 27, 6:58 PM EDT | Severe Thunderstorm Warning | LWX | 32 min |
| May 27, 7:21 PM EDT | Severe Thunderstorm Warning | LWX | 39 min |
| May 29, 1:46 PM EDT | Heat Advisory | LWX | 31 hr |
| May 30, 8:37 PM EDT | Heat Advisory | LWX | 23 hr |
| May 31, 1:26 PM EDT | Heat Advisory | LWX | 31 hr |
| Jun 1, 1:37 PM EDT | Mesoscale Discussion | SPC | 83 min |
| Jun 1, 2:24 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 1, 5:32 PM EDT | Severe Thunderstorm Warning | LWX | 42 min |
| Jun 1, 6:27 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Jun 1, 8:25 PM EDT | Mesoscale Discussion | SPC | 95 min |
| Jun 7, 1:33 PM EDT | Heat Advisory | LWX | 30 hr |
| Jun 8, 1:28 PM EDT | Heat Advisory | LWX | 31 hr |
| Jun 9, 1:45 PM EDT | Mesoscale Discussion | SPC | 90 min |
| Jun 9, 11:20 PM EDT | Severe Thunderstorm Warning | LWX | 40 min |
| Jun 10, 12:07 AM EDT | Severe Thunderstorm Warning | LWX | 38 min |
| Jun 10, 12:38 AM EDT | Special Weather Statement | LWX | 22 min |
| Jun 11, 12:44 PM EDT | Mesoscale Discussion | SPC | 91 min |
| Jun 11, 4:10 PM EDT | Severe Thunderstorm Warning | LWX | 50 min |
| Jun 12, 12:03 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Jun 12, 1:48 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 12, 3:39 PM EDT | Mesoscale Discussion | SPC | 96 min |
| Jun 12, 5:00 PM EDT | Severe Thunderstorm Warning | LWX | 45 min |
| Jun 12, 5:40 PM EDT | Severe Thunderstorm Warning | LWX | 37 min |
| Jun 12, 6:30 PM EDT | Severe Thunderstorm Warning | LWX | 45 min |
| Jun 16, 5:39 PM EDT | Special Weather Statement | LWX | 51 min |
| Jun 16, 6:01 PM EDT | Mesoscale Discussion | SPC | 89 min |
| Jun 16, 6:11 PM EDT | Coastal Flood Advisory | LWX | 17 hr |
| Jun 16, 6:20 PM EDT | Special Weather Statement | LWX | 55 min |
| Jun 17, 6:34 PM EDT | Special Weather Statement | LWX | 26 min |
| Jun 17, 6:45 PM EDT | Severe Thunderstorm Warning | LWX | 45 min |
| Jun 20, 4:52 AM EDT | Coastal Flood Advisory | LWX | 9 hr |
| Jun 20, 2:36 PM EDT | Coastal Flood Advisory | LWX | 7 hr |
| Jun 24, 1:05 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 28, 6:34 PM EDT | Severe Thunderstorm Warning | LWX | 26 min |
| Jul 3, 4:21 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 3, 7:43 PM EDT | Severe Thunderstorm Warning | LWX | 62 min |
| Jul 3, 8:15 PM EDT | Severe Thunderstorm Warning | LWX | 48 min |
| Jul 3, 8:41 PM EDT | Mesoscale Discussion | SPC | 64 min |
| Jul 4, 2:34 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 7, 3:14 PM EDT | Flash Flood Watch | LWX | 29 hr |
| Jul 8, 11:44 AM EDT | Mesoscale Discussion | SPC | 61 min |
| Jul 8, 1:51 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 8, 5:02 PM EDT | Special Weather Statement | LWX | 43 min |
| Jul 8, 5:10 PM EDT | Severe Thunderstorm Warning | LWX | 50 min |
| Jul 8, 5:27 PM EDT | Severe Thunderstorm Warning | LWX | 48 min |
| Jul 8, 5:52 PM EDT | Mesoscale Discussion | SPC | 83 min |
| Jul 8, 5:53 PM EDT | Severe Thunderstorm Warning | LWX | 26 min |
| Jul 8, 6:00 PM EDT | Special Weather Statement | LWX | 90 min |
| Jul 8, 6:34 PM EDT | Flash Flood Warning | LWX | 76 min |
| Jul 11, 1:31 PM EDT | Heat Advisory | LWX | 23 hr |
| Jul 11, 5:47 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 11, 7:44 PM EDT | Mesoscale Discussion | SPC | 61 min |
| Jul 11, 8:46 PM EDT | Severe Thunderstorm Warning | LWX | 44 min |
| Jul 11, 9:26 PM EDT | Severe Thunderstorm Warning | LWX | 64 min |
| Jul 13, 2:21 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 13, 3:13 PM EDT | Severe Thunderstorm Warning | LWX | 47 min |
| Jul 13, 3:45 PM EDT | Flash Flood Warning | LWX | 3 hr |
| Jul 13, 4:02 PM EDT | Severe Thunderstorm Warning | LWX | 43 min |
| Jul 13, 4:30 PM EDT | Severe Thunderstorm Warning | LWX | 45 min |
| Jul 13, 4:30 PM EDT | Mesoscale Discussion | SPC | 90 min |
| Jul 14, 11:37 PM EDT | Coastal Flood Advisory | LWX | 36 hr |
| Jul 19, 12:12 PM EDT | Excessive Heat Watch | LWX | 27 hr |
| Jul 19, 8:45 PM EDT | Special Weather Statement | LWX | 45 min |
| Jul 20, 3:19 PM EDT | Excessive Heat Warning | LWX | 31 hr |
| Jul 20, 3:19 PM EDT | Excessive Heat Warning | LWX | 54 hr |
| Jul 21, 3:38 PM EDT | Excessive Heat Warning | LWX | 52 hr |
| Jul 23, 3:29 PM EDT | Heat Advisory | LWX | 29 hr |
| Jul 23, 7:09 PM EDT | Severe Thunderstorm Warning | LWX | 36 min |
| Jul 25, 3:37 PM EDT | Flash Flood Warning | LWX | 2 hr |
| Jul 28, 12:53 PM EDT | Heat Advisory | LWX | 31 hr |
| Aug 1, 3:22 PM EDT | Mesoscale Discussion | SPC | 83 min |
| Aug 1, 5:40 PM EDT | Severe Thunderstorm Warning | LWX | 50 min |
| Aug 1, 6:03 PM EDT | Severe Thunderstorm Warning | LWX | 42 min |
| Aug 3, 1:03 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Aug 7, 12:52 PM EDT | Mesoscale Discussion | SPC | 53 min |
| Aug 13, 2:07 PM EDT | Mesoscale Discussion | SPC | 113 min |
| Aug 14, 3:29 AM EDT | Flash Flood Warning | LWX | 3 hr |
| Aug 14, 6:37 PM EDT | Mesoscale Discussion | SPC | 53 min |
| Aug 15, 1:09 AM EDT | Coastal Flood Advisory | LWX | 9 hr |
| Aug 19, 3:13 PM EDT | Mesoscale Discussion | SPC | 62 min |
| Aug 19, 6:39 PM EDT | Severe Thunderstorm Warning | LWX | 47 min |
| Aug 20, 7:00 PM EDT | Tropical Storm Warning | NHC | 8 days |
| Aug 21, 11:54 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 21, 12:52 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Aug 21, 4:02 PM EDT | Special Weather Statement | LWX | 28 min |
| Aug 21, 7:12 PM EDT | Mesoscale Discussion | SPC | 63 min |
| Aug 21, 7:53 PM EDT | Special Weather Statement | LWX | 7 min |
| Aug 25, 5:00 AM EDT | Tropical Storm Watch | NHC | 54 hr |
| Aug 25, 8:18 AM EDT | Flash Flood Watch | LWX | 12 hr |
| Aug 25, 3:23 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Aug 25, 4:42 PM EDT | Severe Thunderstorm Warning | LWX | 48 min |
| Aug 25, 5:20 PM EDT | Severe Thunderstorm Warning | LWX | 40 min |
| Aug 25, 5:29 PM EDT | Special Weather Statement | LWX | 46 min |
| Aug 25, 5:35 PM EDT | Tropical Storm Watch | LWX | 12 hr |
| Aug 25, 5:47 PM EDT | Flash Flood Warning | LWX | 97 min |
| Aug 26, 5:06 AM EDT | Flash Flood Watch | LWX | 47 hr |
| Aug 26, 5:09 AM EDT | Tropical Storm Warning | LWX | 57 hr |
| Aug 27, 5:09 PM EDT | Flash Flood Warning | LWX | 9 hr |
| Aug 28, 1:58 AM EDT | Areal Flood Warning | LWX | 6 hr |
| Sep 3, 1:49 PM EDT | Coastal Flood Advisory | LWX | 14 hr |
| Sep 4, 1:42 PM EDT | Coastal Flood Advisory | LWX | 14 hr |
| Sep 5, 4:06 AM EDT | Flash Flood Watch | LWX | 5 days |
| Sep 5, 1:41 PM EDT | Coastal Flood Advisory | LWX | 16 hr |
| Sep 6, 1:38 PM EDT | Coastal Flood Watch | LWX | 39 hr |
| Sep 7, 10:47 AM EDT | Flash Flood Warning | LWX | 7 hr |
| Sep 7, 11:28 AM EDT | Special Weather Statement | LWX | 32 min |
| Sep 7, 11:38 AM EDT | Flash Flood Warning | LWX | 3 hr |
| Sep 7, 12:14 PM EDT | Special Weather Statement | LWX | 31 min |
| Sep 7, 12:18 PM EDT | Flash Flood Warning | LWX | 5 hr |
| Sep 7, 12:37 PM EDT | Coastal Flood Advisory | LWX | 70 hr |
| Sep 7, 5:25 PM EDT | Areal Flood Warning | LWX | 6 hr |
| Sep 7, 9:09 PM EDT | Flash Flood Warning | LWX | 3 hr |
| Sep 7, 9:22 PM EDT | Tornado Warning | LWX | 23 min |
| Sep 7, 9:46 PM EDT | Tornado Warning | LWX | 29 min |
| Sep 7, 10:06 PM EDT | Mesoscale Discussion | SPC | 114 min |
| Sep 7, 10:26 PM EDT | Flash Flood Warning | LWX | 6 hr |
| Sep 8, 12:45 AM EDT | Flash Flood Warning | LWX | 4 hr |
| Sep 8, 3:55 AM EDT | Areal Flood Warning | LWX | 14 hr |
| Sep 8, 4:35 AM EDT | Areal Flood Warning | LWX | 40 hr |
| Sep 8, 5:54 AM EDT | Flash Flood Warning | LWX | 3 hr |
| Sep 8, 12:23 PM EDT | Flash Flood Warning | LWX | 11 hr |
| Sep 8, 4:41 PM EDT | Flash Flood Warning | LWX | 4 hr |
| Sep 8, 5:15 PM EDT | Tornado Warning | LWX | 30 min |
| Sep 8, 6:21 PM EDT | Mesoscale Discussion | SPC | 114 min |
| Sep 8, 7:30 PM EDT | Special Weather Statement | LWX | 45 min |
| Sep 8, 8:32 PM EDT | Flash Flood Warning | LWX | 4 hr |
| Sep 10, 9:03 PM EDT | Coastal Flood Advisory | LWX | 13 hr |
| Sep 11, 4:13 AM EDT | Flash Flood Watch | LWX | 20 hr |
| Sep 11, 6:38 PM EDT | Mesoscale Discussion | SPC | 97 min |
| Sep 11, 10:06 PM EDT | Coastal Flood Advisory | LWX | 13 hr |
| Sep 19, 3:24 AM EDT | Coastal Flood Advisory | LWX | 49 hr |
| Sep 22, 11:44 AM EDT | Flash Flood Watch | LWX | 32 hr |
| Sep 27, 3:20 PM EDT | Severe Thunderstorm Warning | LWX | 40 min |
| Sep 27, 3:40 PM EDT | Severe Thunderstorm Warning | LWX | 65 min |
| Sep 28, 2:43 AM EDT | Coastal Flood Advisory | LWX | 65 hr |
| Oct 6, 6:22 PM EDT | Coastal Flood Advisory | LWX | 14 hr |
| Oct 12, 11:07 AM EDT | Coastal Flood Advisory | LWX | 49 hr |
| Oct 13, 4:28 PM EDT | Tornado Watch | SPC | 4 hr |
| Oct 13, 6:53 PM EDT | Mesoscale Discussion | SPC | 97 min |
| Oct 19, 10:27 AM EDT | Coastal Flood Advisory | LWX | 40 hr |
| Oct 29, 10:32 AM EDT | Freeze Warning | LWX | 22 hr |
| Nov 2, 5:58 PM EDT | Coastal Flood Advisory | LWX | 11 hr |
| Nov 5, 9:04 PM EDT | Coastal Flood Advisory | LWX | 23 hr |
| Nov 9, 3:48 AM EST | Dense Fog Advisory | LWX | 6 hr |
| Nov 10, 1:15 AM EST | Dense Fog Advisory | LWX | 8 hr |
| Dec 7, 2:08 PM EST | Areal Flood Warning | LWX | 14 hr |
| Dec 7, 7:39 PM EST | Areal Flood Warning | LWX | 6 hr |
| Dec 27, 4:05 AM EST | Coastal Flood Advisory | LWX | 21 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 | 44 |
| Tornado Warning | 10 |
| Severe Thunderstorm Watch | 16 |
| Tornado Watch | 8 |
| Mesoscale Discussion | 55 |
| Special Weather Statement | 24 |
| Flooding | |
| Areal Flood Warning | 6 |
| Flash Flood Warning | 18 |
| Flash Flood Watch | 9 |
| Flood Watch | 1 |
| Winter | |
| Winter Storm Watch | 2 |
| Winter Weather Advisory | 6 |
| Heat | |
| Excessive Heat Warning | 3 |
| Excessive Heat Watch | 1 |
| Heat Advisory | 8 |
| Cold | |
| Freeze Warning | 1 |
| Wind and dust | |
| High Wind Warning | 2 |
| Wind Advisory | 5 |
| Fire | |
| Red Flag Warning | 2 |
| Fire Weather Watch | 2 |
| Fog and smoke | |
| Dense Fog Advisory | 3 |
| Tropical | |
| Tropical Storm Warning | 2 |
| Tropical Storm Watch | 2 |
| Coast and beach | |
| Coastal Flood Warning | 2 |
| Coastal Flood Watch | 6 |
| Coastal Flood Advisory | 30 |
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.