Alert archive / Maryland / Baltimore County
Weather alerts in Baltimore County, Maryland, 2011
330 weather alerts in 2011, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Baltimore County and its neighbors
Each county as a circle sized by its count in 2011. Tap one for its archive.
- Alerts
- 330
- Warnings
- 109
- Watches
- 56
- Advisories
- 70
- Busiest month
- August60 alerts
- Busiest day
- July 8, 201113 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
3 of 11 tornado warnings covering Baltimore County in 2011 had a tornado report inside them; 2 of 2 tornado reports fell inside a warning, on average 10 minutes after it went out.
Baltimore County, 2011
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 11 | 3 | 73% | 2 | 100% | 10 min |
| Severe thunderstorm warnings | 40 | 32 | 20% | 35 | 77% | 23 min |
| Flash flood warnings | 33 | 21 | 36% | 42 | 86% | 134 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 7, 6:50 PM EST | Winter Weather Advisory | LWX | 35 hr |
| 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 17, 10:37 PM EST | Winter Storm Warning | LWX | 10 hr |
| Jan 18, 11:32 PM EST | Freezing Rain Advisory | LWX | 6 hr |
| Jan 20, 8:54 AM EST | Winter Weather Advisory | LWX | 24 hr |
| Jan 25, 10:16 AM EST | Winter Storm Watch | LWX | 18 hr |
| Jan 25, 6:02 PM EST | Winter Storm Warning | LWX | 29 hr |
| Jan 26, 2:19 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Jan 31, 4:07 AM EST | Winter Storm Watch | LWX | 32 hr |
| Jan 31, 2:40 PM EST | Winter Weather Advisory | LWX | 21 hr |
| Feb 1, 11:57 AM EST | Freezing Rain Advisory | LWX | 19 hr |
| Feb 4, 2:44 PM EST | Freezing Rain Advisory | LWX | 22 hr |
| Feb 8, 3:26 AM EST | Wind Advisory | LWX | 13 hr |
| Feb 14, 2:45 AM EST | Wind Advisory | LWX | 22 hr |
| Feb 18, 3:16 AM EST | Fire Weather Watch | LWX | 11 hr |
| Feb 18, 10:30 AM EST | High Wind Watch | LWX | 7 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, 3:51 AM EST | Winter Storm Watch | LWX | 8 hr |
| Feb 21, 11:57 AM EST | Winter Storm Warning | LWX | 18 hr |
| Feb 21, 11:57 AM EST | Winter Weather Advisory | LWX | 18 hr |
| Feb 21, 5:58 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Feb 24, 4:05 AM EST | High Wind Watch | LWX | 10 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, 11:22 AM EST | Special Weather Statement | LWX | 53 min |
| Feb 25, 12:19 PM EST | Severe Thunderstorm Watch | SPC | 3 hr |
| Feb 25, 12:22 PM EST | Special Weather Statement | LWX | 38 min |
| Feb 25, 1:25 PM EST | Severe Thunderstorm Warning | LWX | 33 min |
| Feb 25, 2:40 PM EST | Mesoscale Discussion | SPC | 65 min |
| Mar 5, 3:16 AM EST | Flood Watch | LWX | 43 hr |
| Mar 6, 9:08 AM EST | Coastal Flood Advisory | LWX | 12 hr |
| 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, 12:37 PM EST | Areal Flood Warning | LWX | 6 hr |
| Mar 10, 6:29 PM EST | Flash Flood Warning | LWX | 4 hr |
| Mar 10, 7:30 PM EST | Special Weather Statement | LWX | 30 min |
| Mar 11, 3:13 AM EST | Coastal Flood Advisory | LWX | 12 hr |
| Mar 21, 4:46 AM EDT | Coastal Flood Advisory | LWX | 7 hr |
| Mar 23, 6:29 PM EDT | Special Weather Statement | LWX | 31 min |
| Mar 23, 6:57 PM EDT | Special Weather Statement | LWX | 33 min |
| Mar 23, 8:13 PM EDT | Mesoscale Discussion | SPC | 92 min |
| Mar 24, 6:19 AM EDT | Coastal Flood Advisory | LWX | 8 hr |
| Apr 3, 9:46 PM EDT | Special Weather Statement | LWX | 44 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, 4:40 AM EDT | Severe Thunderstorm Warning | LWX | 53 min |
| Apr 5, 8:32 AM EDT | Special Weather Statement | LWX | 58 min |
| Apr 15, 4:34 AM EDT | Flash Flood Watch | LWX | 41 hr |
| 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, 1:29 PM EDT | Tornado Watch | SPC | 8 hr |
| Apr 16, 4:29 PM EDT | Mesoscale Discussion | SPC | 31 min |
| Apr 16, 4:59 PM EDT | Severe Thunderstorm Warning | LWX | 46 min |
| Apr 16, 6:15 PM EDT | Special Weather Statement | LWX | 60 min |
| Apr 16, 6:38 PM EDT | Mesoscale Discussion | SPC | 97 min |
| Apr 16, 7:38 PM EDT | Severe Thunderstorm Warning | LWX | 52 min |
| Apr 16, 8:02 PM EDT | Tornado Warning | LWX | 28 min |
| Apr 16, 8:12 PM EDT | Mesoscale Discussion | SPC | 63 min |
| Apr 16, 8:18 PM EDT | Severe Thunderstorm Warning | LWX | 42 min |
| Apr 16, 8:56 PM EDT | Flash Flood Warning | LWX | 94 min |
| Apr 18, 2:05 AM EDT | Coastal Flood Advisory | LWX | 8 hr |
| 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, 4:30 PM EDT | Severe Thunderstorm Warning | LWX | 45 min |
| Apr 24, 4:43 PM EDT | Severe Thunderstorm Warning | LWX | 47 min |
| Apr 24, 6:10 PM EDT | Mesoscale Discussion | SPC | 65 min |
| Apr 24, 7:54 PM EDT | Severe Thunderstorm Warning | LWX | 32 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, 6:00 PM EDT | Mesoscale Discussion | SPC | 60 min |
| Apr 27, 6:15 PM EDT | Tornado Watch | SPC | 6 hr |
| Apr 27, 7:31 PM EDT | Tornado Warning | LWX | 29 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, 7:55 AM EDT | Tornado Warning | LWX | 27 min |
| Apr 28, 8:14 AM EDT | Tornado Warning | LWX | 11 min |
| Apr 28, 8:45 AM EDT | Tornado Warning | LWX | 30 min |
| Apr 28, 9:14 AM EDT | Tornado Warning | LWX | 31 min |
| Apr 28, 9:49 AM EDT | Tornado Warning | LWX | 26 min |
| Apr 28, 10:36 AM EDT | Flash Flood Warning | LWX | 102 min |
| Apr 28, 10:44 AM EDT | Mesoscale Discussion | SPC | 61 min |
| Apr 28, 11:38 AM EDT | Coastal Flood Advisory | LWX | 7 hr |
| Apr 28, 12:15 PM EDT | Areal Flood Warning | LWX | 3 hr |
| May 3, 3:29 AM EDT | Coastal Flood Advisory | LWX | 16 hr |
| May 3, 2:27 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| 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 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, 2:50 PM EDT | Coastal Flood Warning | LWX | 3 days |
| May 17, 2:50 PM EDT | Coastal Flood Advisory | LWX | 45 hr |
| May 17, 6:27 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 18, 11:44 AM EDT | Coastal Flood Watch | LWX | 7 hr |
| May 18, 12:55 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| May 18, 2:27 PM EDT | Tornado Warning | LWX | 33 min |
| May 18, 2:45 PM EDT | Flash Flood Warning | LWX | 3 hr |
| May 18, 2:57 PM EDT | Tornado Warning | LWX | 33 min |
| May 18, 3:08 PM EDT | Mesoscale Discussion | SPC | 67 min |
| May 18, 4:10 PM EDT | Tornado Warning | LWX | 35 min |
| May 18, 5:35 PM EDT | Areal Flood Warning | LWX | 3 hr |
| May 18, 6:01 PM EDT | Mesoscale Discussion | SPC | 89 min |
| May 19, 4:36 AM EDT | Flash Flood Watch | LWX | 14 hr |
| May 19, 12:22 PM EDT | Flash Flood Warning | LWX | 3 hr |
| May 19, 2:17 PM EDT | Mesoscale Discussion | SPC | 58 min |
| May 19, 4:15 PM EDT | Special Weather Statement | LWX | 30 min |
| May 19, 4:34 PM EDT | Severe Thunderstorm Warning | LWX | 41 min |
| May 23, 6:34 AM EDT | Coastal Flood Advisory | LWX | 29 hr |
| May 23, 10:33 AM EDT | Mesoscale Discussion | SPC | 87 min |
| May 23, 10:48 AM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| May 23, 4:40 PM EDT | Mesoscale Discussion | SPC | 95 min |
| May 23, 5:39 PM EDT | Special Weather Statement | LWX | 51 min |
| May 26, 3:48 AM EDT | Coastal Flood Advisory | LWX | 27 hr |
| May 27, 12:24 PM EDT | Mesoscale Discussion | SPC | 96 min |
| 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, 7:55 PM EDT | Severe Thunderstorm Warning | LWX | 50 min |
| May 27, 8:28 PM EDT | Severe Thunderstorm Warning | LWX | 47 min |
| May 27, 8:36 PM EDT | Special Weather Statement | LWX | 24 min |
| May 27, 9:07 PM EDT | Special Weather Statement | LWX | 23 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, 4:12 PM EDT | Special Weather Statement | LWX | 33 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, 12:53 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 9, 1:45 PM EDT | Mesoscale Discussion | SPC | 90 min |
| Jun 9, 6:17 PM EDT | Mesoscale Discussion | SPC | 58 min |
| Jun 9, 7:02 PM EDT | Special Weather Statement | LWX | 28 min |
| Jun 9, 8:04 PM EDT | Severe Thunderstorm Warning | LWX | 41 min |
| Jun 9, 8:15 PM EDT | Severe Thunderstorm Warning | LWX | 45 min |
| Jun 9, 8:40 PM EDT | Severe Thunderstorm Warning | LWX | 33 min |
| Jun 10, 5:28 PM EDT | Mesoscale Discussion | SPC | 92 min |
| Jun 10, 6:55 PM EDT | Severe Thunderstorm Warning | LWX | 26 min |
| Jun 11, 8:18 PM EDT | Severe Thunderstorm Warning | LWX | 42 min |
| Jun 11, 8:54 PM EDT | Severe Thunderstorm Warning | LWX | 51 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, 4:16 PM EDT | Special Weather Statement | LWX | 29 min |
| Jun 12, 4:26 PM EDT | Severe Thunderstorm Warning | LWX | 49 min |
| Jun 12, 4:51 PM EDT | Severe Thunderstorm Warning | LWX | 39 min |
| Jun 15, 8:37 PM EDT | Coastal Flood Advisory | LWX | 12 hr |
| Jun 16, 6:01 PM EDT | Mesoscale Discussion | SPC | 89 min |
| Jun 16, 6:11 PM EDT | Coastal Flood Advisory | LWX | 17 hr |
| Jun 17, 1:30 AM EDT | Coastal Flood Warning | LWX | 10 hr |
| Jun 22, 2:03 PM EDT | Mesoscale Discussion | SPC | 117 min |
| Jul 3, 4:21 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 3, 5:35 PM EDT | Severe Thunderstorm Warning | LWX | 35 min |
| Jul 3, 6:03 PM EDT | Severe Thunderstorm Warning | LWX | 72 min |
| Jul 7, 3:14 PM EDT | Flash Flood Watch | LWX | 29 hr |
| Jul 7, 6:04 PM EDT | Severe Thunderstorm Warning | LWX | 41 min |
| Jul 7, 6:16 PM EDT | Severe Thunderstorm Warning | LWX | 44 min |
| Jul 7, 6:21 PM EDT | Flash Flood Warning | LWX | 3 hr |
| Jul 7, 8:15 PM EDT | Flash Flood Warning | LWX | 3 hr |
| Jul 7, 10:52 PM EDT | Special Weather Statement | LWX | 38 min |
| Jul 7, 11:11 PM EDT | Flash Flood Warning | LWX | 3 hr |
| Jul 7, 11:15 PM EDT | Special Weather Statement | LWX | 30 min |
| Jul 7, 11:21 PM EDT | Severe Thunderstorm Warning | LWX | 39 min |
| Jul 8, 12:01 AM EDT | Special Weather Statement | LWX | 29 min |
| Jul 8, 12:34 AM EDT | Special Weather Statement | LWX | 26 min |
| Jul 8, 1:21 AM EDT | Special Weather Statement | LWX | 54 min |
| 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, 3:33 PM EDT | Flash Flood Warning | LWX | 3 hr |
| Jul 8, 3:49 PM EDT | Flash Flood Warning | LWX | 3 hr |
| Jul 8, 5:52 PM EDT | Mesoscale Discussion | SPC | 83 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, 7:34 PM EDT | Severe Thunderstorm Warning | LWX | 41 min |
| Jul 11, 7:44 PM EDT | Mesoscale Discussion | SPC | 61 min |
| Jul 11, 8:15 PM EDT | Severe Thunderstorm Warning | LWX | 45 min |
| Jul 11, 8:56 PM EDT | Severe Thunderstorm Warning | LWX | 34 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, 3:22 PM EDT | Special Weather Statement | LWX | 53 min |
| Jul 19, 10:14 PM EDT | Special Weather Statement | LWX | 31 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, 7:54 AM EDT | Special Weather Statement | LWX | 36 min |
| Jul 23, 3:29 PM EDT | Heat Advisory | LWX | 29 hr |
| Jul 25, 1:12 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 25, 1:28 PM EDT | Severe Thunderstorm Warning | LWX | 32 min |
| Jul 25, 3:16 PM EDT | Flash Flood Warning | LWX | 97 min |
| Jul 28, 12:53 PM EDT | Heat Advisory | LWX | 31 hr |
| Jul 29, 6:17 PM EDT | Mesoscale Discussion | SPC | 88 min |
| Aug 1, 3:22 PM EDT | Mesoscale Discussion | SPC | 83 min |
| Aug 1, 8:13 PM EDT | Special Weather Statement | LWX | 32 min |
| Aug 3, 12:29 AM EDT | Special Weather Statement | LWX | 46 min |
| Aug 6, 7:50 PM EDT | Coastal Flood Advisory | LWX | 8 hr |
| Aug 9, 9:57 AM EDT | Special Weather Statement | LWX | 48 min |
| Aug 9, 2:13 PM EDT | Coastal Flood Advisory | LWX | 14 hr |
| Aug 9, 4:24 PM EDT | Severe Thunderstorm Warning | LWX | 35 min |
| Aug 13, 1:39 PM EDT | Special Weather Statement | LWX | 66 min |
| Aug 13, 1:43 PM EDT | Coastal Flood Advisory | LWX | 21 hr |
| Aug 13, 2:07 PM EDT | Mesoscale Discussion | SPC | 113 min |
| Aug 13, 2:54 PM EDT | Special Weather Statement | LWX | 66 min |
| Aug 14, 3:23 AM EDT | Flash Flood Watch | LWX | 20 hr |
| Aug 14, 10:08 AM EDT | Special Weather Statement | LWX | 52 min |
| Aug 14, 12:18 PM EDT | Flash Flood Warning | LWX | 2 hr |
| Aug 14, 10:49 PM EDT | Special Weather Statement | LWX | 56 min |
| Aug 14, 11:27 PM EDT | Flash Flood Warning | LWX | 77 min |
| Aug 15, 1:09 AM EDT | Coastal Flood Advisory | LWX | 9 hr |
| Aug 15, 8:01 AM EDT | Flash Flood Warning | LWX | 3 hr |
| Aug 15, 9:23 AM EDT | Flash Flood Warning | LWX | 3 hr |
| Aug 15, 12:10 PM EDT | Flash Flood Watch | LWX | 6 hr |
| Aug 15, 1:10 PM EDT | Flash Flood Warning | LWX | 118 min |
| Aug 18, 5:14 PM EDT | Severe Thunderstorm Warning | LWX | 46 min |
| Aug 18, 5:26 PM EDT | Flash Flood Warning | LWX | 3 hr |
| Aug 18, 6:05 PM EDT | Special Weather Statement | LWX | 25 min |
| Aug 18, 6:11 PM EDT | Severe Thunderstorm Warning | LWX | 24 min |
| Aug 18, 6:39 PM EDT | Mesoscale Discussion | SPC | 96 min |
| Aug 18, 6:49 PM EDT | Severe Thunderstorm Warning | LWX | 41 min |
| Aug 18, 7:28 PM EDT | Severe Thunderstorm Warning | LWX | 47 min |
| Aug 18, 11:53 PM EDT | Severe Thunderstorm Warning | LWX | 52 min |
| Aug 18, 11:58 PM EDT | Special Weather Statement | LWX | 32 min |
| Aug 19, 11:54 AM EDT | Flash Flood Watch | LWX | 8 hr |
| Aug 19, 3:13 PM EDT | Mesoscale Discussion | SPC | 62 min |
| Aug 19, 5:15 PM EDT | Special Weather Statement | LWX | 30 min |
| Aug 19, 5:17 PM EDT | Special Weather Statement | LWX | 28 min |
| Aug 19, 5:19 PM EDT | Severe Thunderstorm Warning | LWX | 41 min |
| Aug 19, 5:43 PM EDT | Special Weather Statement | LWX | 47 min |
| Aug 19, 5:54 PM EDT | Severe Thunderstorm Warning | LWX | 51 min |
| Aug 19, 6:00 PM EDT | Flash Flood Warning | LWX | 118 min |
| Aug 20, 7:00 PM EDT | Tropical Storm Warning | NHC | 8 days |
| Aug 21, 11:10 AM EDT | Flash Flood Watch | LWX | 7 hr |
| 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, 1:11 PM EDT | Special Weather Statement | LWX | 34 min |
| Aug 21, 1:14 PM EDT | Severe Thunderstorm Warning | LWX | 46 min |
| Aug 21, 1:28 PM EDT | Severe Thunderstorm Warning | LWX | 47 min |
| Aug 21, 1:29 PM EDT | Severe Thunderstorm Warning | LWX | 46 min |
| Aug 21, 1:39 PM EDT | Flash Flood Warning | LWX | 3 hr |
| Aug 21, 1:54 PM EDT | Severe Thunderstorm Warning | LWX | 51 min |
| Aug 21, 2:19 PM EDT | Tornado Warning | LWX | 26 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 24, 1:32 PM EDT | Coastal Flood Advisory | LWX | 18 hr |
| 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, 5:35 PM EDT | Tropical Storm Watch | LWX | 12 hr |
| 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, 6:24 PM EDT | Flash Flood Warning | LWX | 9 hr |
| Aug 27, 9:38 PM EDT | Flash Flood Warning | LWX | 6 hr |
| Aug 28, 3:05 AM EDT | Areal Flood Warning | LWX | 6 hr |
| Sep 2, 1:10 PM EDT | Coastal Flood Advisory | LWX | 12 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 5, 3:05 PM EDT | Special Weather Statement | LWX | 25 min |
| Sep 5, 9:58 PM EDT | Special Weather Statement | LWX | 62 min |
| Sep 5, 10:17 PM EDT | Flash Flood Warning | LWX | 2 hr |
| Sep 6, 1:38 PM EDT | Coastal Flood Watch | LWX | 39 hr |
| Sep 7, 1:19 AM EDT | Special Weather Statement | LWX | 56 min |
| Sep 7, 9:51 AM EDT | Flash Flood Warning | LWX | 12 hr |
| Sep 7, 11:33 AM EDT | Flash Flood Warning | LWX | 10 hr |
| Sep 7, 12:37 PM EDT | Coastal Flood Advisory | LWX | 70 hr |
| Sep 7, 1:32 PM EDT | Special Weather Statement | LWX | 28 min |
| Sep 7, 1:58 PM EDT | Flash Flood Warning | LWX | 8 hr |
| Sep 7, 5:25 PM EDT | Areal Flood Warning | LWX | 6 hr |
| Sep 7, 6:12 PM EDT | Special Weather Statement | LWX | 48 min |
| Sep 7, 10:03 PM EDT | Flash Flood Warning | LWX | 6 hr |
| Sep 7, 10:26 PM EDT | Flash Flood Warning | LWX | 6 hr |
| Sep 8, 4:02 AM EDT | Areal Flood Warning | LWX | 20 hr |
| Sep 8, 5:54 AM EDT | Flash Flood Warning | LWX | 3 hr |
| Sep 8, 7:26 AM EDT | Flash Flood Warning | LWX | 3 hr |
| Sep 9, 3:47 AM EDT | Special Weather Statement | LWX | 88 min |
| Sep 9, 5:36 AM EDT | Flash Flood Warning | LWX | 3 hr |
| Sep 10, 7:41 PM EDT | Flash Flood Warning | LWX | 90 min |
| 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 14, 10:36 AM EDT | Coastal Flood Advisory | LWX | 13 hr |
| Sep 14, 3:22 PM EDT | Mesoscale Discussion | SPC | 53 min |
| Sep 14, 8:05 PM EDT | Special Weather Statement | LWX | 55 min |
| 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 23, 12:20 PM EDT | Special Weather Statement | LWX | 55 min |
| Sep 23, 12:34 PM EDT | Flash Flood Warning | LWX | 3 hr |
| Sep 23, 3:06 PM EDT | Flash Flood Warning | LWX | 4 hr |
| Sep 27, 1:54 PM EDT | Coastal Flood Advisory | LWX | 9 hr |
| Sep 27, 2:15 PM EDT | Flash Flood Watch | LWX | 6 hr |
| Sep 28, 2:43 AM EDT | Coastal Flood Advisory | LWX | 65 hr |
| Sep 28, 4:45 PM EDT | Mesoscale Discussion | SPC | 60 min |
| Sep 28, 9:27 PM EDT | Special Weather Statement | LWX | 48 min |
| Sep 28, 9:28 PM EDT | Special Weather Statement | LWX | 47 min |
| Sep 28, 9:55 PM EDT | Special Weather Statement | LWX | 20 min |
| 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 12, 5:59 PM EDT | Coastal Flood Warning | LWX | 42 hr |
| Oct 13, 4:28 PM EDT | Tornado Watch | SPC | 4 hr |
| Oct 14, 12:04 PM EDT | Coastal Flood Advisory | LWX | 16 hr |
| Oct 19, 2:08 AM EDT | Coastal Flood Watch | LWX | 8 hr |
| Oct 19, 10:27 AM EDT | Coastal Flood Warning | LWX | 17 hr |
| Oct 19, 10:27 AM EDT | Coastal Flood Advisory | LWX | 40 hr |
| Oct 26, 4:24 PM EDT | Freeze Watch | LWX | 23 hr |
| Oct 28, 3:36 AM EDT | Winter Storm Watch | LWX | 15 hr |
| Oct 28, 6:32 PM EDT | Winter Weather Advisory | LWX | 11 hr |
| Oct 29, 5:30 AM EDT | Winter Weather Advisory | LWX | 15 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 10, 1:15 AM EST | Dense Fog Advisory | LWX | 8 hr |
| Nov 23, 3:01 AM EST | Special Weather Statement | LWX | 59 min |
| Nov 29, 10:41 AM EST | Coastal Flood Advisory | LWX | 14 hr |
| Dec 5, 2:08 AM EST | Dense Fog Advisory | LWX | 7 hr |
| Dec 6, 8:24 PM EST | Flood Watch | LWX | 29 hr |
| Dec 7, 4:30 AM EST | Winter Weather Advisory | LWX | 20 hr |
| Dec 7, 9:36 PM EST | Areal Flood Warning | LWX | 4 hr |
| Dec 15, 11:40 AM EST | Coastal Flood Advisory | LWX | 12 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 | 40 |
| Tornado Warning | 11 |
| Severe Thunderstorm Watch | 12 |
| Tornado Watch | 7 |
| Mesoscale Discussion | 46 |
| Special Weather Statement | 49 |
| Flooding | |
| Areal Flood Warning | 7 |
| Flash Flood Warning | 33 |
| Flash Flood Watch | 15 |
| Flood Watch | 3 |
| Winter | |
| Winter Storm Warning | 3 |
| Winter Storm Watch | 5 |
| Freezing Rain Advisory | 3 |
| Winter Weather Advisory | 9 |
| Heat | |
| Excessive Heat Warning | 3 |
| Excessive Heat Watch | 1 |
| Heat Advisory | 8 |
| Cold | |
| Freeze Warning | 1 |
| Freeze Watch | 1 |
| Wind and dust | |
| High Wind Warning | 2 |
| High Wind Watch | 2 |
| Wind Advisory | 5 |
| Fire | |
| Red Flag Warning | 1 |
| Fire Weather Watch | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 2 |
| Tropical | |
| Tropical Storm Warning | 2 |
| Tropical Storm Watch | 2 |
| Coast and beach | |
| Coastal Flood Warning | 6 |
| Coastal Flood Watch | 7 |
| Coastal Flood Advisory | 43 |
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.