Alert archive / Texas / San Jacinto County
Weather alerts in San Jacinto County, Texas, 2015
148 weather alerts in 2015, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
San Jacinto County and its neighbors
Each county as a circle sized by its count in 2015. Tap one for its archive.
- Alerts
- 148
- Warnings
- 40
- Watches
- 24
- Advisories
- 37
- Busiest month
- May42 alerts
- Busiest day
- April 27, 201510 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 2 tornado warnings covering San Jacinto County in 2015 had a tornado report inside them.
San Jacinto County, 2015
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 2 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 14 | 6 | 57% | 5 | 100% | 19 min |
| Flash flood warnings | 18 | 11 | 39% | 3 | 67% | 38 min |
Each office's whole area, 2015
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Houston/Galveston, TX: tornado warnings | 52 | 10 | 81% | 43 | 33% | 14 min |
| NWS Houston/Galveston, TX: severe thunderstorm warnings | 154 | 69 | 55% | 203 | 69% | 19 min |
| NWS Houston/Galveston, TX: flash flood warnings | 138 | 73 | 47% | 207 | 78% | 65 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 6, 3:03 PM CST | Hard Freeze Watch | HGX | 13 hr |
| Jan 7, 3:58 AM CST | Hard Freeze Warning | HGX | 28 hr |
| Jan 7, 3:58 AM CST | Wind Advisory | HGX | 57 days |
| Jan 19, 10:19 PM CST | Dense Fog Advisory | HGX | 12 hr |
| Jan 20, 6:06 PM CST | Dense Fog Advisory | HGX | 15 hr |
| Feb 11, 12:48 AM CST | Dense Fog Advisory | HGX | 9 hr |
| Feb 22, 12:59 PM CST | Freezing Rain Advisory | HGX | 44 hr |
| Mar 2, 6:26 PM CST | Dense Fog Advisory | HGX | 16 hr |
| Mar 8, 2:58 PM CDT | Flash Flood Watch | HGX | 29 hr |
| Mar 20, 3:33 AM CDT | Flash Flood Watch | HGX | 39 hr |
| Mar 20, 4:08 PM CDT | Special Weather Statement | HGX | 37 min |
| Apr 1, 8:26 PM CDT | Special Weather Statement | HGX | 34 min |
| Apr 3, 5:54 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 14, 12:40 PM CDT | Special Weather Statement | HGX | 50 min |
| Apr 16, 1:34 PM CDT | Mesoscale Discussion | SPC | 116 min |
| Apr 16, 2:22 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Apr 16, 3:19 PM CDT | Flash Flood Watch | HGX | 41 hr |
| Apr 16, 4:59 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Apr 16, 6:19 PM CDT | Areal Flood Advisory | HGX | 116 min |
| Apr 16, 6:19 PM CDT | Mesoscale Discussion | SPC | 86 min |
| Apr 16, 7:20 PM CDT | Flash Flood Warning | HGX | 115 min |
| Apr 18, 11:04 PM CDT | Special Weather Statement | HGX | 56 min |
| Apr 18, 11:40 PM CDT | Severe Thunderstorm Warning | HGX | 40 min |
| Apr 19, 1:52 PM CDT | Mesoscale Discussion | SPC | 53 min |
| Apr 19, 2:31 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Apr 19, 4:45 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 24, 10:05 AM CDT | Special Weather Statement | HGX | 40 min |
| Apr 24, 3:58 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Apr 24, 4:45 PM CDT | Tornado Watch | SPC | 5 hr |
| Apr 27, 12:49 AM CDT | Mesoscale Discussion | SPC | 86 min |
| Apr 27, 1:27 AM CDT | Tornado Watch | SPC | 6 hr |
| Apr 27, 4:27 AM CDT | Severe Thunderstorm Warning | HGX | 78 min |
| Apr 27, 4:36 AM CDT | Tornado Warning | HGX | 39 min |
| Apr 27, 4:40 AM CDT | Severe Thunderstorm Warning | HGX | 35 min |
| Apr 27, 4:46 AM CDT | Areal Flood Advisory | HGX | 119 min |
| Apr 27, 4:52 AM CDT | Tornado Warning | HGX | 23 min |
| Apr 27, 4:56 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 27, 5:40 AM CDT | Special Weather Statement | HGX | 65 min |
| Apr 27, 1:08 PM CDT | Mesoscale Discussion | SPC | 97 min |
| Apr 28, 12:23 AM CDT | Special Weather Statement | HGX | 67 min |
| May 11, 5:57 AM CDT | Areal Flood Advisory | HGX | 3 hr |
| May 11, 6:43 AM CDT | Areal Flood Advisory | HGX | 3 hr |
| May 11, 7:04 AM CDT | Mesoscale Discussion | SPC | 56 min |
| May 11, 8:06 AM CDT | Flash Flood Warning | HGX | 114 min |
| May 11, 10:03 AM CDT | Flash Flood Warning | HGX | 117 min |
| May 11, 10:52 AM CDT | Flash Flood Watch | HGX | 24 hr |
| May 12, 3:32 PM CDT | Flash Flood Watch | HGX | 30 hr |
| May 12, 5:01 PM CDT | Severe Thunderstorm Warning | HGX | 44 min |
| May 12, 6:33 PM CDT | Special Weather Statement | HGX | 42 min |
| May 13, 4:14 AM CDT | Flash Flood Warning | HGX | 3 hr |
| May 13, 2:24 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| May 13, 3:50 PM CDT | Flash Flood Warning | HGX | 115 min |
| May 13, 4:47 PM CDT | Flash Flood Warning | HGX | 118 min |
| May 13, 5:39 PM CDT | Areal Flood Advisory | HGX | 2 hr |
| May 15, 6:39 AM CDT | Flash Flood Watch | HGX | 12 hr |
| May 15, 2:29 PM CDT | Areal Flood Advisory | HGX | 2 hr |
| May 18, 5:29 AM CDT | Flash Flood Watch | HGX | 7 hr |
| May 18, 7:27 AM CDT | Areal Flood Advisory | HGX | 2 hr |
| May 18, 5:56 PM CDT | Areal Flood Advisory | HGX | 49 min |
| May 21, 9:42 AM CDT | Areal Flood Advisory | HGX | 2 hr |
| May 21, 10:50 AM CDT | Areal Flood Advisory | HGX | 115 min |
| May 23, 4:47 AM CDT | Flash Flood Watch | HGX | 32 hr |
| May 24, 3:01 PM CDT | Flash Flood Watch | HGX | 51 hr |
| May 25, 2:52 PM CDT | Tornado Watch | SPC | 8 hr |
| May 25, 7:11 PM CDT | Flash Flood Warning | HGX | 3 hr |
| May 25, 7:28 PM CDT | Severe Thunderstorm Warning | HGX | 47 min |
| May 25, 8:05 PM CDT | Mesoscale Discussion | SPC | 85 min |
| May 25, 8:10 PM CDT | Severe Thunderstorm Warning | HGX | 35 min |
| May 25, 8:27 PM CDT | Flash Flood Warning | HGX | 3 hr |
| May 25, 8:31 PM CDT | Flash Flood Warning | HGX | 3 hr |
| May 25, 8:41 PM CDT | Severe Thunderstorm Warning | HGX | 64 min |
| May 25, 8:54 PM CDT | Flash Flood Warning | HGX | 3 hr |
| May 25, 9:11 PM CDT | Flash Flood Warning | HGX | 3 hr |
| May 26, 9:53 AM CDT | River Flood Warning | HGX | 29 days |
| May 27, 4:00 AM CDT | Severe Thunderstorm Warning | HGX | 30 min |
| May 27, 4:43 AM CDT | Flash Flood Warning | HGX | 3 hr |
| May 27, 4:48 AM CDT | Mesoscale Discussion | SPC | 117 min |
| May 27, 5:31 AM CDT | Flash Flood Warning | HGX | 3 hr |
| May 29, 4:26 AM CDT | Flash Flood Watch | HGX | 4 hr |
| May 29, 3:33 PM CDT | Flash Flood Watch | HGX | 30 hr |
| May 30, 3:55 PM CDT | Severe Thunderstorm Warning | HGX | 50 min |
| May 30, 4:13 PM CDT | Areal Flood Advisory | HGX | 2 hr |
| Jun 15, 9:57 AM CDT | Flash Flood Watch | HGX | 3 days |
| Jun 16, 7:48 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 16, 1:01 PM CDT | Tornado Watch | SPC | 11 hr |
| Jun 16, 3:06 PM CDT | Mesoscale Discussion | SPC | 114 min |
| Jun 16, 6:38 PM CDT | Mesoscale Discussion | SPC | 97 min |
| Jun 16, 10:50 PM CDT | Mesoscale Discussion | SPC | 85 min |
| Jun 17, 5:31 AM CDT | Mesoscale Discussion | SPC | 89 min |
| Jun 17, 7:46 AM CDT | Areal Flood Advisory | HGX | 119 min |
| Jun 17, 7:47 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 17, 11:44 AM CDT | Areal Flood Advisory | HGX | 2 hr |
| Jun 18, 3:34 AM CDT | Areal Flood Advisory | HGX | 3 hr |
| Jun 18, 3:51 AM CDT | Flash Flood Warning | HGX | 3 hr |
| Jun 18, 6:30 AM CDT | Flash Flood Warning | HGX | 3 hr |
| Jun 18, 7:56 AM CDT | Special Weather Statement | HGX | 49 min |
| Jun 18, 9:42 AM CDT | Areal Flood Warning | HGX | 6 hr |
| Jun 18, 1:57 PM CDT | Areal Flood Advisory | HGX | 108 min |
| Jun 28, 12:48 AM CDT | Areal Flood Advisory | HGX | 117 min |
| Jun 28, 3:29 AM CDT | Areal Flood Advisory | HGX | 2 hr |
| Jun 28, 5:27 AM CDT | Areal Flood Advisory | HGX | 63 min |
| Jun 28, 5:52 AM CDT | Flash Flood Warning | HGX | 113 min |
| Jul 4, 4:14 PM CDT | Special Weather Statement | HGX | 61 min |
| Jul 4, 4:23 PM CDT | Special Weather Statement | HGX | 67 min |
| Aug 8, 10:06 AM CDT | Heat Advisory | HGX | 58 hr |
| Aug 10, 3:18 PM CDT | Heat Advisory | HGX | 30 hr |
| Aug 11, 6:31 PM CDT | Special Weather Statement | HGX | 59 min |
| Aug 11, 7:24 PM CDT | Severe Thunderstorm Warning | HGX | 51 min |
| Aug 12, 3:35 AM CDT | Heat Advisory | HGX | 17 hr |
| Aug 12, 5:42 PM CDT | Severe Thunderstorm Warning | HGX | 48 min |
| Aug 12, 6:39 PM CDT | Special Weather Statement | HGX | 51 min |
| Aug 12, 7:06 PM CDT | Severe Thunderstorm Warning | HGX | 39 min |
| Aug 16, 3:06 PM CDT | Special Weather Statement | HGX | 39 min |
| Aug 18, 5:31 PM CDT | Special Weather Statement | HGX | 44 min |
| Aug 20, 9:21 AM CDT | Flash Flood Watch | HGX | 7 hr |
| Aug 20, 9:30 AM CDT | Areal Flood Advisory | HGX | 2 hr |
| Aug 25, 10:56 AM CDT | Special Weather Statement | HGX | 64 min |
| Aug 25, 12:00 PM CDT | Special Weather Statement | HGX | 60 min |
| Sep 6, 5:59 AM CDT | Dense Fog Advisory | HGX | 3 hr |
| Oct 23, 9:37 AM CDT | Flash Flood Watch | HGX | 49 hr |
| Oct 24, 10:31 AM CDT | Special Weather Statement | HGX | 89 min |
| Oct 24, 3:47 PM CDT | Wind Advisory | HGX | 39 hr |
| Oct 30, 11:35 AM CDT | Flash Flood Watch | HGX | 28 hr |
| Oct 31, 7:49 AM CDT | Flash Flood Warning | HGX | 116 min |
| Oct 31, 8:33 AM CDT | Flash Flood Warning | HGX | 87 min |
| Nov 4, 5:09 AM CST | Dense Fog Advisory | HGX | 4 hr |
| Nov 17, 6:18 AM CST | Special Weather Statement | HGX | 57 min |
| Nov 17, 8:04 AM CST | Severe Thunderstorm Warning | HGX | 41 min |
| Nov 17, 8:55 AM CST | Tornado Watch | SPC | 7 hr |
| Nov 17, 8:57 AM CST | Severe Thunderstorm Warning | HGX | 48 min |
| Nov 17, 9:04 AM CST | Areal Flood Advisory | HGX | 3 hr |
| Nov 22, 3:47 AM CST | Freeze Warning | HGX | 28 hr |
| Dec 9, 11:36 PM CST | Dense Fog Advisory | HGX | 9 hr |
| Dec 12, 10:17 AM CST | River Flood Warning | HGX | 68 hr |
| Dec 12, 2:16 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Dec 12, 3:02 PM CST | Wind Advisory | HGX | 18 hr |
| Dec 12, 6:09 PM CST | Mesoscale Discussion | SPC | 96 min |
| Dec 13, 5:57 AM CST | Special Weather Statement | HGX | 63 min |
| Dec 13, 6:59 AM CST | Special Weather Statement | HGX | 61 min |
| Dec 13, 9:46 AM CST | River Flood Warning | HGX | 8 days |
| Dec 21, 9:44 PM CST | Dense Fog Advisory | HGX | 12 hr |
| Dec 23, 11:03 PM CST | Dense Fog Advisory | HGX | 10 hr |
| Dec 27, 2:50 AM CST | Wind Advisory | HGX | 30 hr |
| Dec 27, 5:44 AM CST | Mesoscale Discussion | SPC | 3 hr |
| Dec 27, 8:56 AM CST | Tornado Watch | SPC | 10 hr |
| Dec 27, 12:45 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Dec 27, 3:19 PM CST | Mesoscale Discussion | SPC | 116 min |
| Dec 27, 5:28 PM CST | Special Weather Statement | HGX | 47 min |
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 | 14 |
| Tornado Warning | 2 |
| Severe Thunderstorm Watch | 2 |
| Tornado Watch | 6 |
| Mesoscale Discussion | 25 |
| Special Weather Statement | 22 |
| Flooding | |
| Areal Flood Warning | 1 |
| Flash Flood Warning | 18 |
| River Flood Warning | 3 |
| Flash Flood Watch | 15 |
| Areal Flood Advisory | 20 |
| Winter | |
| Freezing Rain Advisory | 1 |
| Heat | |
| Heat Advisory | 3 |
| Cold | |
| Freeze Warning | 1 |
| Hard Freeze Warning | 1 |
| Hard Freeze Watch | 1 |
| Wind and dust | |
| Wind Advisory | 4 |
| Fog and smoke | |
| Dense Fog Advisory | 9 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20142016
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.