Alert archive / Texas / McLennan County
Weather alerts in McLennan County, Texas, 2020
87 weather alerts in 2020, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
McLennan County and its neighbors
Each county as a circle sized by its count in 2020. Tap one for its archive.
- Alerts
- 87
- Warnings
- 14
- Watches
- 8
- Advisories
- 33
- Busiest month
- April21 alerts
- Busiest day
- April 12, 20209 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 1 tornado warnings covering McLennan County in 2020 had a tornado report inside them; 0 of 3 tornado reports fell inside a warning.
McLennan County, 2020
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 0 | 100% | 3 | 0% | |
| Severe thunderstorm warnings | 11 | 8 | 27% | 13 | 85% | 19 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2020
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Fort Worth, TX: tornado warnings | 37 | 13 | 65% | 30 | 60% | 17 min |
| NWS Fort Worth, TX: severe thunderstorm warnings | 212 | 113 | 47% | 327 | 83% | 27 min |
| NWS Fort Worth, TX: flash flood warnings | 28 | 18 | 36% | 31 | 74% | 68 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 10, 1:20 PM CST | Tornado Watch | SPC | 11 hr |
| Jan 10, 2:59 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Jan 10, 4:55 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Jan 10, 6:44 PM CST | Severe Thunderstorm Warning | FWD | 36 min |
| Jan 10, 7:30 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Jan 13, 9:43 PM CST | Dense Fog Advisory | FWD | 12 hr |
| Jan 15, 12:55 AM CST | Dense Fog Advisory | FWD | 7 hr |
| Jan 17, 3:42 PM CST | Dense Fog Advisory | FWD | 8 hr |
| Jan 22, 6:08 PM CST | Dense Fog Advisory | FWD | 13 hr |
| Jan 26, 11:46 PM CST | Dense Fog Advisory | FWD | 11 hr |
| Jan 28, 11:47 AM CST | Wind Advisory | FWD | 20 hr |
| Mar 3, 9:05 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Mar 4, 4:20 AM CST | Mesoscale Discussion | SPC | 115 min |
| Mar 4, 5:44 AM CST | Special Weather Statement | FWD | 31 min |
| Mar 10, 5:10 AM CDT | Dense Fog Advisory | FWD | 5 hr |
| Mar 19, 10:06 AM CDT | Areal Flood Advisory | FWD | 3 hr |
| Mar 19, 6:51 PM CDT | Mesoscale Discussion | SPC | 54 min |
| Mar 20, 3:35 AM CDT | Areal Flood Advisory | FWD | 115 min |
| Mar 22, 10:16 PM CDT | Dense Fog Advisory | FWD | 13 hr |
| Mar 28, 7:40 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 11, 10:10 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 11, 5:37 PM CDT | Mesoscale Discussion | SPC | 113 min |
| Apr 12, 1:37 AM CDT | Mesoscale Discussion | SPC | 113 min |
| Apr 12, 1:55 AM CDT | Wind Advisory | FWD | 23 hr |
| Apr 12, 1:59 AM CDT | Tornado Watch | SPC | 6 hr |
| Apr 12, 4:15 AM CDT | Mesoscale Discussion | SPC | 90 min |
| Apr 12, 4:26 AM CDT | Special Weather Statement | FWD | 34 min |
| Apr 12, 4:51 AM CDT | Tornado Warning | FWD | 39 min |
| Apr 12, 5:09 AM CDT | Special Weather Statement | FWD | 36 min |
| Apr 12, 5:43 AM CDT | Severe Thunderstorm Warning | FWD | 62 min |
| Apr 12, 7:18 AM CDT | Mesoscale Discussion | SPC | 87 min |
| Apr 19, 3:17 AM CDT | Dense Fog Advisory | FWD | 6 hr |
| Apr 19, 7:22 AM CDT | Mesoscale Discussion | SPC | 113 min |
| Apr 19, 7:35 AM CDT | Special Weather Statement | FWD | 25 min |
| Apr 19, 7:42 AM CDT | Severe Thunderstorm Warning | FWD | 63 min |
| Apr 22, 10:38 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 28, 8:06 PM CDT | Mesoscale Discussion | SPC | 54 min |
| Apr 28, 8:25 PM CDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Apr 29, 1:56 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 29, 2:02 AM CDT | Severe Thunderstorm Warning | FWD | 58 min |
| Apr 29, 2:57 AM CDT | Severe Thunderstorm Warning | FWD | 63 min |
| May 7, 11:19 PM CDT | Wind Advisory | FWD | 21 hr |
| May 15, 8:56 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 15, 9:14 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 15, 11:10 PM CDT | Severe Thunderstorm Warning | FWD | 80 min |
| May 15, 11:44 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 16, 12:25 AM CDT | Special Weather Statement | FWD | 50 min |
| May 16, 12:45 AM CDT | Areal Flood Advisory | FWD | 3 hr |
| May 16, 1:21 AM CDT | Special Weather Statement | FWD | 24 min |
| May 24, 12:39 PM CDT | Mesoscale Discussion | SPC | 96 min |
| May 24, 1:46 PM CDT | Special Weather Statement | FWD | 29 min |
| May 24, 5:06 PM CDT | Special Weather Statement | FWD | 24 min |
| May 24, 5:55 PM CDT | Severe Thunderstorm Warning | FWD | 32 min |
| May 27, 11:19 AM CDT | Severe Thunderstorm Warning | FWD | 56 min |
| May 27, 12:09 PM CDT | Severe Thunderstorm Warning | FWD | 66 min |
| May 27, 1:17 PM CDT | Severe Thunderstorm Warning | FWD | 58 min |
| May 27, 1:20 PM CDT | Severe Thunderstorm Warning | FWD | 55 min |
| May 27, 1:24 PM CDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jun 23, 1:33 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 23, 3:55 AM CDT | Mesoscale Discussion | SPC | 95 min |
| Jun 29, 2:38 PM CDT | Heat Advisory | FWD | 3 days |
| Jul 6, 5:03 PM CDT | Areal Flood Advisory | FWD | 3 hr |
| Jul 7, 10:18 AM CDT | Areal Flood Advisory | FWD | 3 hr |
| Jul 8, 3:29 PM CDT | Heat Advisory | FWD | 5 days |
| Jul 14, 12:15 AM CDT | Heat Advisory | FWD | 20 hr |
| Aug 12, 3:04 AM CDT | Heat Advisory | FWD | 5 days |
| Aug 12, 3:12 PM CDT | Excessive Heat Warning | FWD | 3 days |
| Aug 16, 9:22 PM CDT | Special Weather Statement | FWD | 53 min |
| Aug 27, 2:30 PM CDT | Heat Advisory | FWD | 53 hr |
| Aug 29, 6:03 PM CDT | Heat Advisory | FWD | 3 days |
| Aug 31, 7:06 PM CDT | Flash Flood Watch | FWD | 60 hr |
| Sep 1, 8:55 PM CDT | Mesoscale Discussion | SPC | 95 min |
| Sep 2, 12:00 AM CDT | Areal Flood Advisory | FWD | 3 hr |
| Sep 2, 2:11 AM CDT | Areal Flood Advisory | FWD | 6 hr |
| Sep 2, 6:57 AM CDT | Areal Flood Advisory | FWD | 3 hr |
| Sep 2, 8:41 AM CDT | Areal Flood Advisory | FWD | 3 hr |
| Sep 3, 8:11 AM CDT | Areal Flood Advisory | FWD | 3 hr |
| Sep 9, 5:43 PM CDT | Areal Flood Advisory | FWD | 3 hr |
| Sep 27, 1:10 PM CDT | Wind Advisory | FWD | 18 hr |
| Oct 23, 9:30 AM CDT | Special Weather Statement | FWD | 45 min |
| Nov 24, 10:25 PM CST | Special Weather Statement | FWD | 65 min |
| Nov 29, 1:08 PM CST | Freeze Watch | FWD | 20 hr |
| Nov 30, 8:57 AM CST | Freeze Warning | FWD | 24 hr |
| Dec 11, 7:23 PM CST | Dense Fog Advisory | FWD | 8 hr |
| Dec 12, 12:33 PM CST | Wind Advisory | FWD | 32 hr |
| Dec 22, 6:35 AM CST | Dense Fog Advisory | FWD | 3 hr |
| Dec 22, 11:50 PM CST | Wind Advisory | FWD | 28 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 | 11 |
| Tornado Warning | 1 |
| Severe Thunderstorm Watch | 4 |
| Tornado Watch | 2 |
| Mesoscale Discussion | 21 |
| Special Weather Statement | 11 |
| Flooding | |
| Flash Flood Watch | 1 |
| Areal Flood Advisory | 11 |
| Heat | |
| Excessive Heat Warning | 1 |
| Heat Advisory | 6 |
| Cold | |
| Freeze Warning | 1 |
| Freeze Watch | 1 |
| Wind and dust | |
| Wind Advisory | 6 |
| Fog and smoke | |
| Dense Fog Advisory | 10 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20192021
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.