Alert archive / Texas / Montgomery County
Weather alerts in Montgomery County, Texas, 2019
221 weather alerts in 2019, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Montgomery County and its neighbors
Each county as a circle sized by its count in 2019. Tap one for its archive.
- Alerts
- 221
- Warnings
- 73
- Watches
- 17
- Advisories
- 71
- Busiest month
- May63 alerts
- Busiest day
- September 19, 201918 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
2 of 5 tornado warnings covering Montgomery County in 2019 had a tornado report inside them; 1 of 1 tornado reports fell inside a warning, on average 4 minutes after it went out.
Montgomery County, 2019
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 5 | 2 | 60% | 1 | 100% | 4 min |
| Severe thunderstorm warnings | 26 | 8 | 69% | 2 | 50% | 15 min |
| Flash flood warnings | 15 | 9 | 40% | 10 | 100% | 124 min |
Each office's whole area, 2019
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Houston/Galveston, TX: tornado warnings | 45 | 8 | 82% | 18 | 72% | 8 min |
| NWS Houston/Galveston, TX: severe thunderstorm warnings | 158 | 64 | 59% | 147 | 72% | 21 min |
| NWS Houston/Galveston, TX: flash flood warnings | 67 | 29 | 57% | 89 | 89% | 101 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, Central Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jan 1, 3:12 AM CST | Dense Fog Advisory | HGX | 6 hr |
| Jan 1, 3:10 PM CST | Flash Flood Watch | HGX | 45 hr |
| Jan 2, 6:26 PM CST | Areal Flood Advisory | HGX | 2 hr |
| Jan 2, 8:43 PM CST | Areal Flood Advisory | HGX | 2 hr |
| Jan 3, 4:27 AM CST | Areal Flood Advisory | HGX | 2 hr |
| Jan 3, 6:30 AM CST | Areal Flood Advisory | HGX | 2 hr |
| Jan 3, 2:22 PM CST | River Flood Warning | HGX | 54 hr |
| Jan 3, 2:26 PM CST | River Flood Warning | HGX | 44 hr |
| Jan 4, 10:00 AM CST | River Flood Warning | HGX | 3 days |
| Jan 6, 2:12 AM CST | Dense Fog Advisory | HGX | 8 hr |
| Jan 19, 3:58 AM CST | Wind Advisory | HGX | 18 hr |
| Jan 27, 5:22 AM CST | Dense Fog Advisory | HGX | 6 hr |
| Feb 3, 10:11 PM CST | Dense Fog Advisory | HGX | 14 hr |
| Feb 8, 2:38 PM CST | Special Weather Statement | HGX | 82 min |
| Feb 15, 12:58 AM CST | Dense Fog Advisory | HGX | 6 hr |
| Feb 17, 3:41 AM CST | Dense Fog Advisory | HGX | 4 hr |
| Feb 19, 11:18 AM CST | Special Weather Statement | HGX | 27 min |
| Feb 22, 7:05 AM CST | Dense Fog Advisory | HGX | 6 hr |
| Feb 22, 5:39 PM CST | Dense Fog Advisory | HGX | 17 hr |
| Feb 26, 3:13 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Feb 26, 4:21 PM CST | Special Weather Statement | HGX | 39 min |
| Feb 26, 11:42 PM CST | Dense Fog Advisory | HGX | 34 hr |
| Mar 3, 3:27 PM CST | Freeze Watch | HGX | 24 hr |
| Mar 4, 3:21 PM CST | Hard Freeze Warning | HGX | 18 hr |
| Mar 5, 3:28 PM CST | Freeze Warning | HGX | 17 hr |
| Mar 9, 10:20 PM CST | Dense Fog Advisory | HGX | 12 hr |
| Mar 11, 1:38 AM CDT | Dense Fog Advisory | HGX | 8 hr |
| Mar 13, 2:54 AM CDT | Wind Advisory | HGX | 7 hr |
| Mar 25, 12:10 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Apr 4, 7:10 PM CDT | Dense Fog Advisory | HGX | 15 hr |
| Apr 6, 9:08 AM CDT | Mesoscale Discussion | SPC | 3 hr |
| Apr 6, 10:01 AM CDT | Severe Thunderstorm Warning | HGX | 29 min |
| Apr 6, 4:48 PM CDT | Mesoscale Discussion | SPC | 117 min |
| Apr 7, 6:41 AM CDT | Mesoscale Discussion | SPC | 94 min |
| Apr 7, 7:11 AM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Apr 7, 7:28 AM CDT | Areal Flood Advisory | HGX | 62 min |
| Apr 7, 11:13 AM CDT | Mesoscale Discussion | SPC | 92 min |
| Apr 7, 12:04 PM CDT | Severe Thunderstorm Warning | HGX | 41 min |
| Apr 7, 12:20 PM CDT | Severe Thunderstorm Warning | HGX | 40 min |
| Apr 7, 12:35 PM CDT | Severe Thunderstorm Warning | HGX | 25 min |
| Apr 7, 12:54 PM CDT | Tornado Warning | HGX | 21 min |
| Apr 7, 12:58 PM CDT | Severe Thunderstorm Warning | HGX | 47 min |
| Apr 7, 1:35 PM CDT | Severe Thunderstorm Warning | HGX | 55 min |
| Apr 12, 10:14 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Apr 13, 11:11 AM CDT | Mesoscale Discussion | SPC | 34 min |
| Apr 13, 11:26 AM CDT | Tornado Watch | SPC | 8 hr |
| Apr 13, 1:26 PM CDT | Special Weather Statement | HGX | 49 min |
| Apr 13, 1:44 PM CDT | Severe Thunderstorm Warning | HGX | 31 min |
| Apr 13, 2:14 PM CDT | Severe Thunderstorm Warning | HGX | 12 min |
| Apr 13, 3:13 PM CDT | Severe Thunderstorm Warning | HGX | 32 min |
| Apr 18, 12:54 AM CDT | Mesoscale Discussion | SPC | 66 min |
| Apr 18, 1:09 AM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Apr 18, 3:35 AM CDT | Special Weather Statement | HGX | 40 min |
| Apr 24, 3:47 PM CDT | Mesoscale Discussion | SPC | 43 min |
| Apr 24, 4:49 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Apr 24, 7:35 PM CDT | Mesoscale Discussion | SPC | 85 min |
| May 2, 6:53 AM CDT | Special Weather Statement | HGX | 37 min |
| May 2, 4:48 PM CDT | Mesoscale Discussion | SPC | 117 min |
| May 3, 1:12 PM CDT | Tornado Warning | HGX | 33 min |
| May 3, 1:37 PM CDT | Areal Flood Advisory | HGX | 113 min |
| May 3, 1:52 PM CDT | Tornado Warning | HGX | 23 min |
| May 3, 2:08 PM CDT | Tornado Warning | HGX | 15 min |
| May 3, 2:53 PM CDT | Severe Thunderstorm Warning | HGX | 37 min |
| May 3, 3:24 PM CDT | Areal Flood Advisory | HGX | 111 min |
| May 3, 3:29 PM CDT | Severe Thunderstorm Warning | HGX | 31 min |
| May 3, 3:41 PM CDT | Flash Flood Watch | HGX | 12 hr |
| May 3, 4:04 PM CDT | Severe Thunderstorm Warning | HGX | 26 min |
| May 3, 4:42 PM CDT | Areal Flood Advisory | HGX | 2 hr |
| May 3, 8:58 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 3, 11:35 PM CDT | Mesoscale Discussion | SPC | 85 min |
| May 3, 11:44 PM CDT | Areal Flood Advisory | HGX | 3 hr |
| May 4, 1:40 AM CDT | Areal Flood Advisory | HGX | 2 hr |
| May 7, 12:25 PM CDT | Areal Flood Advisory | HGX | 2 hr |
| May 7, 1:14 PM CDT | Flash Flood Warning | HGX | 91 min |
| May 7, 1:43 PM CDT | Areal Flood Advisory | HGX | 62 min |
| May 7, 2:12 PM CDT | Severe Thunderstorm Warning | HGX | 33 min |
| May 7, 2:28 PM CDT | Flash Flood Warning | HGX | 22 min |
| May 7, 2:28 PM CDT | Severe Thunderstorm Warning | HGX | 32 min |
| May 7, 3:01 PM CDT | Severe Thunderstorm Warning | HGX | 44 min |
| May 7, 3:27 PM CDT | Flash Flood Warning | HGX | 2 hr |
| May 7, 4:08 PM CDT | Areal Flood Advisory | HGX | 2 hr |
| May 7, 4:13 PM CDT | River Flood Warning | HGX | 37 hr |
| May 7, 4:13 PM CDT | River Flood Warning | HGX | 18 hr |
| May 7, 4:53 PM CDT | Flash Flood Warning | HGX | 3 hr |
| May 7, 7:39 PM CDT | Areal Flood Warning | HGX | 3 hr |
| May 7, 10:09 PM CDT | River Flood Warning | HGX | 4 hr |
| May 7, 10:32 PM CDT | Areal Flood Warning | HGX | 15 hr |
| May 8, 12:21 PM CDT | Mesoscale Discussion | SPC | 84 min |
| May 8, 2:07 PM CDT | Mesoscale Discussion | SPC | 53 min |
| May 8, 2:16 PM CDT | Tornado Watch | SPC | 6 hr |
| May 8, 2:29 PM CDT | Severe Thunderstorm Warning | HGX | 46 min |
| May 8, 5:47 PM CDT | Special Weather Statement | HGX | 28 min |
| May 8, 10:31 PM CDT | Mesoscale Discussion | SPC | 89 min |
| May 9, 4:34 AM CDT | Flash Flood Watch | HGX | 59 hr |
| May 9, 5:40 PM CDT | Mesoscale Discussion | SPC | 95 min |
| May 9, 6:31 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| May 9, 7:17 PM CDT | Areal Flood Advisory | HGX | 118 min |
| May 9, 7:25 PM CDT | Areal Flood Advisory | HGX | 2 hr |
| May 9, 7:42 PM CDT | Severe Thunderstorm Warning | HGX | 48 min |
| May 9, 8:02 PM CDT | Areal Flood Advisory | HGX | 118 min |
| May 9, 8:26 PM CDT | Mesoscale Discussion | SPC | 94 min |
| May 9, 8:56 PM CDT | Severe Thunderstorm Warning | HGX | 64 min |
| May 9, 9:11 PM CDT | Areal Flood Advisory | HGX | 2 hr |
| May 9, 9:32 PM CDT | Flash Flood Warning | HGX | 3 hr |
| May 10, 12:33 AM CDT | Flash Flood Warning | HGX | 4 hr |
| May 10, 3:49 AM CDT | River Flood Warning | HGX | 30 hr |
| May 10, 4:35 AM CDT | Areal Flood Warning | HGX | 6 hr |
| May 10, 9:53 AM CDT | River Flood Warning | HGX | 24 hr |
| May 11, 9:01 AM CDT | River Flood Warning | HGX | 48 hr |
| May 11, 2:22 PM CDT | Areal Flood Advisory | HGX | 71 min |
| May 18, 7:13 PM CDT | Mesoscale Discussion | SPC | 62 min |
| May 19, 6:42 PM CDT | Special Weather Statement | HGX | 48 min |
| May 19, 6:59 PM CDT | Special Weather Statement | HGX | 46 min |
| May 19, 7:22 PM CDT | Special Weather Statement | HGX | 38 min |
| May 19, 7:26 PM CDT | Areal Flood Advisory | HGX | 64 min |
| May 19, 7:39 PM CDT | Special Weather Statement | HGX | 36 min |
| May 20, 8:02 PM CDT | Wind Advisory | HGX | 22 hr |
| May 30, 8:47 AM CDT | Areal Flood Advisory | HGX | 58 min |
| May 31, 1:11 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 4, 6:14 AM CDT | Flash Flood Watch | HGX | 37 hr |
| Jun 5, 7:11 AM CDT | Areal Flood Advisory | HGX | 64 min |
| Jun 9, 3:31 PM CDT | Mesoscale Discussion | SPC | 89 min |
| Jun 9, 4:47 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 9, 7:54 PM CDT | Mesoscale Discussion | SPC | 66 min |
| Jun 15, 2:54 PM CDT | Special Weather Statement | HGX | 51 min |
| Jun 16, 1:45 PM CDT | Special Weather Statement | HGX | 45 min |
| Jun 16, 3:56 PM CDT | Special Weather Statement | HGX | 49 min |
| Jun 16, 4:56 PM CDT | Areal Flood Advisory | HGX | 2 hr |
| Jun 16, 6:35 PM CDT | Special Weather Statement | HGX | 40 min |
| Jun 16, 6:44 PM CDT | Areal Flood Advisory | HGX | 2 hr |
| Jun 16, 7:03 PM CDT | Special Weather Statement | HGX | 42 min |
| Jun 16, 7:28 PM CDT | Flash Flood Watch | HGX | 12 hr |
| Jun 16, 7:49 PM CDT | Flash Flood Warning | HGX | 116 min |
| Jun 16, 10:00 PM CDT | Severe Thunderstorm Warning | HGX | 30 min |
| Jun 16, 10:31 PM CDT | Severe Thunderstorm Warning | HGX | 29 min |
| Jun 19, 8:51 PM CDT | Heat Advisory | HGX | 22 hr |
| Jun 19, 10:50 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 20, 7:16 PM CDT | Heat Advisory | HGX | 24 hr |
| Jun 23, 1:50 PM CDT | Mesoscale Discussion | SPC | 115 min |
| Jun 23, 1:52 PM CDT | Heat Advisory | HGX | 6 hr |
| Jun 24, 4:49 AM CDT | Special Weather Statement | HGX | 41 min |
| Jun 24, 4:59 AM CDT | Areal Flood Advisory | HGX | 2 hr |
| Jun 26, 6:06 PM CDT | Areal Flood Advisory | HGX | 54 min |
| Jun 27, 12:41 PM CDT | Special Weather Statement | HGX | 64 min |
| Jun 27, 1:40 PM CDT | Special Weather Statement | HGX | 50 min |
| Jun 28, 5:18 PM CDT | Severe Thunderstorm Warning | HGX | 42 min |
| Jun 29, 2:05 PM CDT | Special Weather Statement | HGX | 55 min |
| Jun 29, 3:00 PM CDT | Special Weather Statement | HGX | 90 min |
| Jun 29, 4:57 PM CDT | Severe Thunderstorm Warning | HGX | 21 min |
| Jun 29, 5:32 PM CDT | Special Weather Statement | HGX | 28 min |
| Jun 29, 5:59 PM CDT | Special Weather Statement | HGX | 46 min |
| Jul 9, 4:51 AM CDT | Heat Advisory | HGX | 14 hr |
| Jul 15, 11:32 AM CDT | Special Weather Statement | HGX | 43 min |
| Jul 15, 12:55 PM CDT | Special Weather Statement | HGX | 50 min |
| Jul 15, 1:18 PM CDT | Areal Flood Advisory | HGX | 117 min |
| Jul 15, 1:52 PM CDT | Areal Flood Advisory | HGX | 53 min |
| Jul 30, 4:48 PM CDT | Mesoscale Discussion | SPC | 87 min |
| Jul 30, 5:13 PM CDT | Severe Thunderstorm Warning | HGX | 32 min |
| Jul 30, 5:38 PM CDT | Special Weather Statement | HGX | 52 min |
| Aug 7, 10:06 AM CDT | Heat Advisory | HGX | 3 days |
| Aug 11, 4:21 AM CDT | Heat Advisory | HGX | 4 days |
| Aug 17, 4:20 AM CDT | Heat Advisory | HGX | 15 hr |
| Aug 19, 6:00 PM CDT | Special Weather Statement | HGX | 45 min |
| Aug 23, 2:23 PM CDT | Areal Flood Advisory | HGX | 67 min |
| Aug 23, 2:40 PM CDT | Special Weather Statement | HGX | 35 min |
| Aug 25, 12:25 AM CDT | Areal Flood Advisory | HGX | 2 hr |
| Aug 25, 3:43 PM CDT | Heat Advisory | HGX | 27 hr |
| Aug 26, 9:23 PM CDT | Heat Advisory | HGX | 22 hr |
| Aug 30, 6:10 PM CDT | Special Weather Statement | HGX | 35 min |
| Aug 30, 6:15 PM CDT | Severe Thunderstorm Warning | HGX | 30 min |
| Aug 30, 6:40 PM CDT | Areal Flood Advisory | HGX | 65 min |
| Sep 9, 4:56 PM CDT | Severe Thunderstorm Warning | HGX | 34 min |
| Sep 10, 3:10 PM CDT | Special Weather Statement | HGX | 50 min |
| Sep 10, 7:39 PM CDT | Special Weather Statement | HGX | 51 min |
| Sep 17, 4:14 AM CDT | Flash Flood Watch | HGX | 4 days |
| Sep 18, 6:55 AM CDT | Areal Flood Advisory | HGX | 4 hr |
| Sep 18, 9:51 AM CDT | Areal Flood Advisory | HGX | 3 hr |
| Sep 18, 10:50 AM CDT | Areal Flood Advisory | HGX | 3 hr |
| Sep 18, 3:48 PM CDT | River Flood Warning | HGX | 5 days |
| Sep 19, 12:16 AM CDT | Areal Flood Advisory | HGX | 59 min |
| Sep 19, 1:28 AM CDT | Areal Flood Advisory | HGX | 2 hr |
| Sep 19, 2:20 AM CDT | Flash Flood Warning | HGX | 115 min |
| Sep 19, 2:56 AM CDT | River Flood Warning | HGX | 63 hr |
| Sep 19, 4:15 AM CDT | Flash Flood Warning | HGX | 3 hr |
| Sep 19, 5:32 AM CDT | Flash Flood Warning | HGX | 118 min |
| Sep 19, 6:04 AM CDT | Special Weather Statement | HGX | 41 min |
| Sep 19, 7:00 AM CDT | Flash Flood Warning | HGX | 7 hr |
| Sep 19, 7:18 AM CDT | Flash Flood Warning | HGX | 4 hr |
| Sep 19, 7:37 AM CDT | Severe Thunderstorm Warning | HGX | 38 min |
| Sep 19, 8:10 AM CDT | River Flood Warning | HGX | 21 hr |
| Sep 19, 8:12 AM CDT | River Flood Warning | HGX | 33 hr |
| Sep 19, 8:50 AM CDT | Flash Flood Warning | HGX | 5 hr |
| Sep 19, 9:12 AM CDT | Flash Flood Warning | HGX | 3 hr |
| Sep 19, 10:12 AM CDT | River Flood Warning | HGX | 44 hr |
| Sep 19, 12:00 PM CDT | River Flood Warning | HGX | 18 hr |
| Sep 19, 2:00 PM CDT | Flash Flood Warning | HGX | 3 hr |
| Sep 19, 4:34 PM CDT | Areal Flood Warning | HGX | 18 hr |
| Sep 20, 10:30 AM CDT | Areal Flood Warning | HGX | 3 hr |
| Sep 20, 4:53 PM CDT | Areal Flood Advisory | HGX | 2 hr |
| Sep 21, 7:28 AM CDT | Areal Flood Warning | HGX | 18 hr |
| Sep 21, 10:59 PM CDT | Areal Flood Warning | HGX | 12 hr |
| Sep 22, 11:02 PM CDT | Areal Flood Warning | HGX | 12 hr |
| Sep 23, 1:29 PM CDT | Areal Flood Advisory | HGX | 2 hr |
| Oct 10, 11:14 AM CDT | Wind Advisory | HGX | 38 hr |
| Oct 11, 7:33 AM CDT | Special Weather Statement | HGX | 42 min |
| Oct 11, 7:54 AM CDT | Tornado Warning | HGX | 12 min |
| Oct 20, 6:52 PM CDT | Mesoscale Discussion | SPC | 113 min |
| Oct 21, 6:12 AM CDT | Special Weather Statement | HGX | 78 min |
| Oct 29, 1:07 PM CDT | Areal Flood Advisory | HGX | 113 min |
| Oct 29, 1:35 PM CDT | Areal Flood Advisory | HGX | 115 min |
| Oct 31, 10:32 AM CDT | Freeze Warning | HGX | 22 hr |
| Nov 11, 3:33 AM CST | Wind Advisory | HGX | 35 hr |
| Nov 12, 3:48 AM CST | Hard Freeze Watch | HGX | 11 hr |
| Nov 12, 3:16 PM CST | Hard Freeze Warning | HGX | 17 hr |
| Nov 25, 5:11 AM CST | Dense Fog Advisory | HGX | 4 hr |
| Nov 29, 6:44 AM CST | Dense Fog Advisory | HGX | 5 hr |
| Dec 24, 7:25 PM CST | Dense Fog Advisory | HGX | 15 hr |
| Dec 25, 7:48 PM CST | Dense Fog Advisory | HGX | 16 hr |
| Dec 26, 4:48 PM CST | Dense Fog Advisory | HGX | 19 hr |
| Dec 28, 9:12 PM CST | Special Weather Statement | HGX | 33 min |
| Dec 29, 7:28 AM CST | Areal Flood Advisory | HGX | 2 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 | 26 |
| Tornado Warning | 5 |
| Severe Thunderstorm Watch | 7 |
| Tornado Watch | 2 |
| Mesoscale Discussion | 25 |
| Special Weather Statement | 35 |
| Flooding | |
| Areal Flood Warning | 8 |
| Flash Flood Warning | 15 |
| River Flood Warning | 15 |
| Flash Flood Watch | 6 |
| Areal Flood Advisory | 40 |
| Heat | |
| Heat Advisory | 9 |
| Cold | |
| Freeze Warning | 2 |
| Hard Freeze Warning | 2 |
| Freeze Watch | 1 |
| Hard Freeze Watch | 1 |
| Wind and dust | |
| Wind Advisory | 5 |
| Fog and smoke | |
| Dense Fog Advisory | 17 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20182020
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.