Alert archive / Texas / Guadalupe County
Weather alerts in Guadalupe County, Texas, 2009
118 weather alerts in 2009, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Guadalupe County and its neighbors
Each county as a circle sized by its count in 2009. Tap one for its archive.
- Alerts
- 118
- Warnings
- 37
- Watches
- 18
- Advisories
- 44
- Busiest month
- April23 alerts
- Busiest day
- October 4, 20098 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Guadalupe County, 2009
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 13 | 8 | 38% | 1 | 0% | |
| Flash flood warnings | 9 | 9 | 0% | 6 | 100% | 112 min |
Each office's whole area, 2009
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Austin/San Antonio, TX: tornado warnings | 20 | 1 | 95% | 6 | 33% | 10 min |
| NWS Austin/San Antonio, TX: severe thunderstorm warnings | 164 | 73 | 55% | 192 | 78% | 23 min |
| NWS Austin/San Antonio, TX: flash flood warnings | 67 | 43 | 36% | 91 | 76% | 85 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 18, 5:56 AM CST | Fire Weather Watch | EWX | 15 hr |
| Jan 18, 8:40 PM CST | Red Flag Warning | EWX | 21 hr |
| Jan 19, 4:42 AM CST | Fire Weather Watch | EWX | 10 hr |
| Jan 19, 3:06 PM CST | Red Flag Warning | EWX | 27 hr |
| Jan 26, 5:44 AM CST | Dense Fog Advisory | EWX | 5 hr |
| Jan 27, 5:06 AM CST | Winter Storm Warning | EWX | 28 hr |
| Jan 31, 3:31 PM CST | Fire Weather Watch | EWX | 12 hr |
| Feb 1, 3:41 AM CST | Red Flag Warning | EWX | 38 hr |
| Feb 8, 4:22 PM CST | Wind Advisory | EWX | 8 hr |
| Feb 9, 3:31 PM CST | Fire Weather Watch | EWX | 14 hr |
| Feb 9, 3:31 PM CST | Red Flag Warning | EWX | 48 hr |
| Feb 10, 6:44 AM CST | Wind Advisory | EWX | 23 hr |
| Feb 10, 9:14 PM CST | Severe Thunderstorm Warning | EWX | 31 min |
| Feb 10, 9:33 PM CST | Severe Thunderstorm Warning | EWX | 42 min |
| Feb 10, 10:07 PM CST | Severe Thunderstorm Warning | EWX | 38 min |
| Feb 17, 3:25 PM CST | Red Flag Warning | EWX | 24 hr |
| Feb 21, 9:21 AM CST | Wind Advisory | EWX | 11 hr |
| Feb 26, 1:58 PM CST | Fire Weather Watch | EWX | 24 hr |
| Feb 27, 5:33 AM CST | Wind Advisory | EWX | 36 hr |
| Feb 27, 2:01 PM CST | Red Flag Warning | EWX | 28 hr |
| Mar 17, 3:44 AM CDT | Dense Fog Advisory | EWX | 6 hr |
| Mar 22, 3:16 PM CDT | Wind Advisory | EWX | 24 hr |
| Mar 25, 12:51 PM CDT | Mesoscale Discussion | SPC | 114 min |
| Mar 25, 2:06 PM CDT | Tornado Watch | SPC | 7 hr |
| Mar 25, 3:57 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Mar 26, 9:14 AM CDT | Mesoscale Discussion | SPC | 31 min |
| Mar 26, 9:39 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Mar 26, 4:00 PM CDT | Wind Advisory | EWX | 29 hr |
| Mar 27, 3:48 PM CDT | Red Flag Warning | EWX | 28 hr |
| Mar 28, 4:28 AM CDT | Wind Advisory | EWX | 11 hr |
| Mar 28, 5:20 AM CDT | Freeze Warning | EWX | 28 hr |
| Mar 28, 3:41 PM CDT | Red Flag Warning | EWX | 29 hr |
| Mar 31, 7:43 AM CDT | Severe Thunderstorm Warning | EWX | 47 min |
| Mar 31, 8:15 AM CDT | Severe Thunderstorm Warning | EWX | 60 min |
| Apr 1, 4:07 AM CDT | Red Flag Warning | EWX | 39 hr |
| Apr 1, 9:41 PM CDT | Wind Advisory | EWX | 19 hr |
| Apr 3, 3:28 PM CDT | Fire Weather Watch | EWX | 12 hr |
| Apr 4, 3:23 AM CDT | Red Flag Warning | EWX | 43 hr |
| Apr 12, 3:55 AM CDT | Mesoscale Discussion | SPC | 95 min |
| Apr 17, 7:28 AM CDT | Mesoscale Discussion | SPC | 92 min |
| Apr 17, 7:48 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Apr 17, 9:56 AM CDT | Mesoscale Discussion | SPC | 94 min |
| Apr 17, 3:19 PM CDT | Mesoscale Discussion | SPC | 56 min |
| Apr 17, 9:20 PM CDT | Flash Flood Watch | EWX | 19 hr |
| Apr 18, 3:22 AM CDT | Mesoscale Discussion | SPC | 113 min |
| Apr 18, 4:21 AM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Apr 18, 5:11 AM CDT | Areal Flood Advisory | EWX | 2 hr |
| Apr 18, 6:32 AM CDT | Mesoscale Discussion | SPC | 118 min |
| Apr 18, 6:45 AM CDT | Flash Flood Warning | EWX | 4 hr |
| Apr 18, 10:50 AM CDT | Areal Flood Advisory | EWX | 115 min |
| Apr 24, 12:07 PM CDT | Mesoscale Discussion | SPC | 113 min |
| Apr 27, 7:55 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Apr 27, 11:58 AM CDT | Areal Flood Advisory | EWX | 2 hr |
| Apr 27, 1:34 PM CDT | Flash Flood Warning | EWX | 3 hr |
| Apr 27, 1:54 PM CDT | Severe Thunderstorm Warning | EWX | 66 min |
| Apr 27, 2:30 PM CDT | Severe Thunderstorm Warning | EWX | 60 min |
| Apr 30, 1:35 AM CDT | High Wind Warning | EWX | 2 hr |
| May 11, 6:38 PM CDT | Severe Thunderstorm Warning | EWX | 37 min |
| May 27, 7:25 AM CDT | Areal Flood Advisory | EWX | 2 hr |
| May 27, 8:22 AM CDT | Flash Flood Warning | EWX | 3 hr |
| Jun 11, 9:36 PM CDT | Severe Thunderstorm Warning | EWX | 54 min |
| Jun 25, 11:24 AM CDT | Heat Advisory | EWX | 4 days |
| Jul 3, 3:15 PM CDT | Heat Advisory | EWX | 28 hr |
| Jul 8, 4:11 AM CDT | Heat Advisory | EWX | 72 hr |
| Jul 20, 10:48 AM CDT | Mesoscale Discussion | SPC | 87 min |
| Jul 20, 7:26 PM CDT | Severe Thunderstorm Warning | EWX | 64 min |
| Jul 30, 1:38 PM CDT | Mesoscale Discussion | SPC | 67 min |
| Aug 22, 1:35 PM CDT | Mesoscale Discussion | SPC | 85 min |
| Aug 23, 2:09 PM CDT | Mesoscale Discussion | SPC | 96 min |
| Aug 27, 10:25 PM CDT | Severe Thunderstorm Warning | EWX | 50 min |
| Sep 10, 2:23 PM CDT | Flash Flood Warning | EWX | 3 hr |
| Sep 11, 9:59 AM CDT | Flash Flood Watch | EWX | 33 hr |
| Sep 11, 4:49 PM CDT | Flash Flood Warning | EWX | 3 hr |
| Sep 11, 5:37 PM CDT | Areal Flood Advisory | EWX | 113 min |
| Sep 12, 8:00 PM CDT | Flash Flood Watch | EWX | 19 hr |
| Sep 28, 1:14 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Oct 1, 9:44 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Oct 3, 2:38 PM CDT | Mesoscale Discussion | SPC | 67 min |
| Oct 3, 3:45 PM CDT | Areal Flood Advisory | EWX | 2 hr |
| Oct 3, 4:59 PM CDT | Severe Thunderstorm Warning | EWX | 61 min |
| Oct 3, 5:06 PM CDT | Areal Flood Advisory | EWX | 114 min |
| Oct 3, 9:25 PM CDT | Areal Flood Advisory | EWX | 110 min |
| Oct 4, 1:48 AM CDT | Mesoscale Discussion | SPC | 117 min |
| Oct 4, 3:06 AM CDT | Areal Flood Advisory | EWX | 114 min |
| Oct 4, 3:59 AM CDT | Flash Flood Watch | EWX | 21 hr |
| Oct 4, 4:41 AM CDT | Flash Flood Warning | EWX | 2 hr |
| Oct 4, 5:55 AM CDT | Flash Flood Warning | EWX | 80 min |
| Oct 4, 7:15 AM CDT | Flash Flood Warning | EWX | 3 hr |
| Oct 4, 12:35 PM CDT | River Flood Warning | EWX | 4 hr |
| Oct 8, 3:34 AM CDT | Flash Flood Watch | EWX | 32 hr |
| Oct 9, 6:56 AM CDT | Areal Flood Advisory | EWX | 5 hr |
| Oct 21, 8:35 PM CDT | Flash Flood Watch | EWX | 14 hr |
| Oct 25, 4:33 AM CDT | Flash Flood Watch | EWX | 35 hr |
| Nov 6, 6:24 AM CST | Dense Fog Advisory | EWX | 4 hr |
| Nov 7, 2:25 AM CST | Dense Fog Advisory | EWX | 9 hr |
| Nov 7, 7:56 PM CST | Dense Fog Advisory | EWX | 8 hr |
| Nov 13, 5:17 AM CST | Dense Fog Advisory | EWX | 5 hr |
| Nov 15, 7:10 AM CST | Dense Fog Advisory | EWX | 110 min |
| Nov 19, 11:37 PM CST | Areal Flood Advisory | EWX | 113 min |
| Nov 20, 9:49 AM CST | Areal Flood Advisory | EWX | 116 min |
| Nov 20, 9:58 AM CST | Areal Flood Advisory | EWX | 107 min |
| Nov 20, 11:03 AM CST | Flash Flood Warning | EWX | 3 hr |
| Nov 20, 3:29 PM CST | Areal Flood Advisory | EWX | 2 hr |
| Nov 20, 5:35 PM CST | Areal Flood Advisory | EWX | 3 hr |
| Nov 22, 3:05 AM CST | Dense Fog Advisory | EWX | 7 hr |
| Nov 22, 9:34 PM CST | Dense Fog Advisory | EWX | 12 hr |
| Dec 3, 11:52 AM CST | Winter Weather Advisory | EWX | 26 hr |
| Dec 4, 4:19 AM CST | Freeze Warning | EWX | 30 hr |
| Dec 6, 9:34 PM CST | Dense Fog Advisory | EWX | 12 hr |
| Dec 8, 9:41 PM CST | Dense Fog Advisory | EWX | 6 hr |
| Dec 12, 9:42 PM CST | Dense Fog Advisory | EWX | 12 hr |
| Dec 13, 9:43 PM CST | Dense Fog Advisory | EWX | 12 hr |
| Dec 14, 7:32 PM CST | Dense Fog Advisory | EWX | 8 hr |
| Dec 17, 9:55 PM CST | Dense Fog Advisory | EWX | 11 hr |
| Dec 23, 3:41 PM CST | Wind Advisory | EWX | 26 hr |
| Dec 23, 11:06 PM CST | Mesoscale Discussion | SPC | 114 min |
| Dec 23, 11:35 PM CST | Severe Thunderstorm Warning | EWX | 40 min |
| Dec 30, 10:26 PM CST | Dense Fog Advisory | EWX | 11 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 | 13 |
| Severe Thunderstorm Watch | 4 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 19 |
| Flooding | |
| Flash Flood Warning | 9 |
| River Flood Warning | 1 |
| Flash Flood Watch | 7 |
| Areal Flood Advisory | 15 |
| Winter | |
| Winter Storm Warning | 1 |
| Winter Weather Advisory | 1 |
| Heat | |
| Heat Advisory | 3 |
| Cold | |
| Freeze Warning | 2 |
| Wind and dust | |
| High Wind Warning | 1 |
| Wind Advisory | 9 |
| Fire | |
| Red Flag Warning | 10 |
| Fire Weather Watch | 6 |
| Fog and smoke | |
| Dense Fog Advisory | 16 |
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.