Alert archive / Texas / Matagorda County
Weather alerts in Matagorda County, Texas, 2009
124 weather alerts in 2009, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Matagorda County and its neighbors
Each county as a circle sized by its count in 2009. Tap one for its archive.
- Alerts
- 124
- Warnings
- 24
- Watches
- 25
- Advisories
- 48
- Busiest month
- April27 alerts
- Busiest day
- April 17, 20096 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Matagorda County, 2009
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 6 | 1 | 83% | 1 | 0% | |
| Flash flood warnings | 1 | 0 | 100% | 0 |
Each office's whole area, 2009
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Houston/Galveston, TX: tornado warnings | 46 | 5 | 89% | 16 | 56% | 7 min |
| NWS Houston/Galveston, TX: severe thunderstorm warnings | 221 | 57 | 74% | 129 | 76% | 19 min |
| NWS Houston/Galveston, TX: flash flood warnings | 41 | 16 | 61% | 56 | 86% | 74 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 2, 4:04 AM CST | Dense Fog Advisory | HGX | 8 hr |
| Jan 4, 4:17 AM CST | Dense Fog Advisory | HGX | 5 hr |
| Jan 13, 9:35 AM CST | Red Flag Warning | HGX | 8 hr |
| Jan 13, 8:56 PM CST | Freeze Warning | HGX | 11 hr |
| Jan 18, 3:42 PM CST | Fire Weather Watch | HGX | 6 hr |
| Jan 18, 9:20 PM CST | Red Flag Warning | HGX | 21 hr |
| Jan 19, 7:04 AM CST | Fire Weather Watch | HGX | 22 hr |
| Jan 20, 5:27 AM CST | Red Flag Warning | HGX | 13 hr |
| Feb 1, 3:12 PM CST | Red Flag Warning | HGX | 24 hr |
| Feb 1, 11:55 PM CST | Dense Fog Advisory | HGX | 3 hr |
| Feb 8, 8:45 AM CST | Wind Advisory | HGX | 11 hr |
| Feb 10, 4:22 AM CST | Fire Weather Watch | HGX | 24 hr |
| Feb 10, 9:30 AM CST | Wind Advisory | HGX | 12 hr |
| Feb 10, 9:46 PM CST | Mesoscale Discussion | SPC | 29 min |
| Feb 10, 9:57 PM CST | Severe Thunderstorm Watch | SPC | 5 hr |
| Feb 11, 4:15 AM CST | Red Flag Warning | HGX | 13 hr |
| Feb 18, 3:09 PM CST | Fire Weather Watch | HGX | 15 hr |
| Feb 19, 5:41 AM CST | Red Flag Warning | HGX | 12 hr |
| Feb 22, 7:31 AM CST | Red Flag Warning | HGX | 11 hr |
| Feb 27, 6:32 AM CST | Fire Weather Watch | HGX | 23 hr |
| Feb 27, 2:59 PM CST | Red Flag Warning | HGX | 27 hr |
| Feb 27, 8:11 PM CST | Wind Advisory | HGX | 25 hr |
| Feb 28, 2:57 PM CST | Red Flag Warning | HGX | 27 hr |
| Mar 16, 8:10 PM CDT | Dense Fog Advisory | HGX | 14 hr |
| Mar 17, 8:04 PM CDT | Dense Fog Advisory | HGX | 14 hr |
| Mar 18, 8:31 PM CDT | Dense Fog Advisory | HGX | 14 hr |
| Mar 19, 9:20 PM CDT | Dense Fog Advisory | HGX | 9 hr |
| Mar 21, 3:13 AM CDT | Dense Fog Advisory | HGX | 7 hr |
| Mar 23, 11:05 AM CDT | Wind Advisory | HGX | 9 hr |
| Mar 25, 7:12 PM CDT | Tornado Watch | SPC | 6 hr |
| Mar 26, 12:43 PM CDT | Mesoscale Discussion | SPC | 62 min |
| Mar 26, 12:57 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Mar 26, 3:51 PM CDT | Mesoscale Discussion | SPC | 54 min |
| Mar 28, 1:10 AM CDT | Wind Advisory | HGX | 4 hr |
| Mar 28, 4:34 AM CDT | Fire Weather Watch | HGX | 11 hr |
| Mar 28, 4:34 AM CDT | Red Flag Warning | HGX | 12 hr |
| Apr 1, 3:13 PM CDT | Fire Weather Watch | HGX | 17 hr |
| Apr 2, 7:47 AM CDT | Red Flag Warning | HGX | 11 hr |
| Apr 2, 11:19 AM CDT | Wind Advisory | HGX | 8 hr |
| Apr 5, 5:55 AM CDT | Wind Advisory | HGX | 13 hr |
| Apr 5, 7:16 PM CDT | Fire Weather Watch | HGX | 17 hr |
| Apr 6, 12:17 PM CDT | Red Flag Warning | HGX | 7 hr |
| Apr 6, 3:16 PM CDT | Fire Weather Watch | HGX | 15 hr |
| Apr 7, 6:17 AM CDT | Red Flag Warning | HGX | 13 hr |
| Apr 13, 6:54 AM CDT | Dense Fog Advisory | HGX | 2 hr |
| Apr 17, 9:56 AM CDT | Mesoscale Discussion | SPC | 94 min |
| Apr 17, 10:24 AM CDT | Tornado Watch | SPC | 7 hr |
| Apr 17, 11:24 AM CDT | Flood Watch | HGX | 33 hr |
| Apr 17, 1:45 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 17, 3:44 PM CDT | Tornado Watch | SPC | 6 hr |
| Apr 17, 6:50 PM CDT | Mesoscale Discussion | SPC | 85 min |
| Apr 18, 4:21 AM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Apr 18, 9:47 AM CDT | Mesoscale Discussion | SPC | 28 min |
| Apr 18, 9:53 AM CDT | Tornado Watch | SPC | 6 hr |
| Apr 18, 11:26 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 18, 1:43 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Apr 18, 4:59 PM CDT | Areal Flood Advisory | HGX | 2 hr |
| Apr 18, 11:56 PM CDT | Dense Fog Advisory | HGX | 8 hr |
| Apr 26, 11:31 AM CDT | Wind Advisory | HGX | 9 hr |
| Apr 27, 3:47 PM CDT | Flood Watch | HGX | 5 hr |
| Apr 27, 3:50 PM CDT | Mesoscale Discussion | SPC | 85 min |
| Apr 27, 3:58 PM CDT | Tornado Watch | SPC | 5 hr |
| Apr 27, 6:30 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 24, 3:11 PM CDT | Areal Flood Advisory | HGX | 2 hr |
| May 24, 3:38 PM CDT | Flash Flood Warning | HGX | 112 min |
| May 27, 8:38 AM CDT | Mesoscale Discussion | SPC | 97 min |
| May 27, 9:35 AM CDT | Areal Flood Advisory | HGX | 3 hr |
| Jun 3, 1:08 PM CDT | Severe Thunderstorm Warning | HGX | 37 min |
| Jun 3, 2:51 PM CDT | Severe Thunderstorm Warning | HGX | 39 min |
| Jun 3, 4:06 PM CDT | Severe Thunderstorm Warning | HGX | 39 min |
| Jun 24, 4:04 PM CDT | Heat Advisory | HGX | 5 days |
| Jun 29, 8:06 PM CDT | Heat Advisory | HGX | 17 hr |
| Jul 4, 8:51 AM CDT | Heat Advisory | HGX | 34 hr |
| Jul 8, 9:08 PM CDT | Heat Advisory | HGX | 4 days |
| Jul 19, 3:56 PM CDT | Special Weather Statement | HGX | 64 min |
| Jul 19, 4:43 PM CDT | Severe Thunderstorm Warning | HGX | 21 min |
| Jul 31, 3:47 AM CDT | Heat Advisory | HGX | 15 hr |
| Aug 1, 4:12 AM CDT | Heat Advisory | HGX | 15 hr |
| Aug 4, 7:03 PM CDT | Heat Advisory | HGX | 3 days |
| Aug 10, 3:10 PM CDT | Heat Advisory | HGX | 24 hr |
| Aug 12, 6:20 PM CDT | Severe Thunderstorm Warning | HGX | 40 min |
| Aug 21, 4:28 AM CDT | Heat Advisory | HGX | 40 hr |
| Aug 23, 2:09 PM CDT | Mesoscale Discussion | SPC | 96 min |
| Aug 23, 2:12 PM CDT | Special Weather Statement | HGX | 63 min |
| Aug 25, 11:32 AM CDT | Special Weather Statement | HGX | 58 min |
| Aug 25, 3:30 PM CDT | Special Weather Statement | HGX | 60 min |
| Aug 26, 10:47 AM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 26, 1:54 PM CDT | Mesoscale Discussion | SPC | 96 min |
| Aug 29, 3:23 PM CDT | Special Weather Statement | HGX | 37 min |
| Aug 29, 4:28 PM CDT | Areal Flood Advisory | HGX | 2 hr |
| Aug 31, 3:03 AM CDT | Areal Flood Advisory | HGX | 117 min |
| Sep 20, 4:47 PM CDT | Special Weather Statement | HGX | 58 min |
| Sep 27, 1:06 AM CDT | Dense Fog Advisory | HGX | 8 hr |
| Oct 3, 2:38 PM CDT | Mesoscale Discussion | SPC | 67 min |
| Oct 8, 9:41 AM CDT | Wind Advisory | HGX | 9 hr |
| Oct 22, 5:08 AM CDT | Areal Flood Advisory | HGX | 112 min |
| Oct 25, 3:43 PM CDT | Flash Flood Watch | HGX | 24 hr |
| Oct 26, 2:05 AM CDT | Severe Thunderstorm Warning | HGX | 40 min |
| Oct 28, 5:15 AM CDT | Flash Flood Watch | HGX | 47 hr |
| Oct 29, 11:19 AM CDT | Wind Advisory | HGX | 9 hr |
| Nov 6, 3:35 AM CST | Coastal Flood Statement | HGX | 3 days |
| Nov 6, 9:24 PM CST | Dense Fog Advisory | HGX | 7 hr |
| Nov 18, 1:48 PM CST | Coastal Flood Statement | HGX | 32 hr |
| Nov 19, 3:11 PM CST | Flash Flood Watch | HGX | 27 hr |
| Nov 19, 10:08 PM CST | Coastal Flood Warning | HGX | 32 hr |
| Nov 22, 8:56 PM CST | Dense Fog Advisory | HGX | 13 hr |
| Nov 24, 6:03 AM CST | Special Weather Statement | HGX | 57 min |
| Nov 29, 3:30 PM CST | Coastal Flood Statement | HGX | 24 hr |
| Nov 30, 3:02 PM CST | Coastal Flood Advisory | HGX | 30 hr |
| Dec 3, 4:55 AM CST | Winter Storm Watch | HGX | 17 hr |
| Dec 3, 7:43 AM CST | Freeze Warning | HGX | 49 hr |
| Dec 3, 10:17 PM CST | Winter Storm Warning | HGX | 20 hr |
| Dec 3, 10:17 PM CST | Winter Weather Advisory | HGX | 17 hr |
| Dec 7, 1:16 AM CST | Dense Fog Advisory | HGX | 7 hr |
| Dec 8, 5:07 AM CST | Dense Fog Advisory | HGX | 5 hr |
| Dec 8, 2:32 PM CST | Dense Fog Advisory | HGX | 8 hr |
| Dec 11, 8:25 AM CST | Coastal Flood Statement | HGX | 19 hr |
| Dec 12, 3:45 AM CST | Coastal Flood Statement | HGX | 7 hr |
| Dec 12, 3:30 PM CST | Dense Fog Advisory | HGX | 18 hr |
| Dec 13, 3:01 PM CST | Dense Fog Advisory | HGX | 19 hr |
| Dec 14, 2:56 PM CST | Dense Fog Advisory | HGX | 18 hr |
| Dec 23, 8:48 PM CST | Tornado Watch | SPC | 9 hr |
| Dec 23, 9:32 PM CST | Wind Advisory | HGX | 30 hr |
| Dec 30, 11:57 PM CST | Dense Fog Advisory | HGX | 12 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 | 6 |
| Severe Thunderstorm Watch | 4 |
| Tornado Watch | 6 |
| Mesoscale Discussion | 15 |
| Special Weather Statement | 7 |
| Flooding | |
| Flash Flood Warning | 1 |
| Flash Flood Watch | 3 |
| Flood Watch | 2 |
| Areal Flood Advisory | 6 |
| Winter | |
| Winter Storm Warning | 1 |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 1 |
| Heat | |
| Heat Advisory | 9 |
| Cold | |
| Freeze Warning | 2 |
| Wind and dust | |
| Wind Advisory | 11 |
| Fire | |
| Red Flag Warning | 13 |
| Fire Weather Watch | 9 |
| Fog and smoke | |
| Dense Fog Advisory | 20 |
| Coast and beach | |
| Coastal Flood Warning | 1 |
| Coastal Flood Advisory | 1 |
| Coastal Flood Statement | 5 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20082010
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.