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

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings10100%30%
Severe thunderstorm warnings11827%1385%19 min
Flash flood warnings00

Each office's whole area, 2020

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Fort Worth, TX: tornado warnings371365%3060%17 min
NWS Fort Worth, TX: severe thunderstorm warnings21211347%32783%27 min
NWS Fort Worth, TX: flash flood warnings281836%3174%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.

IssuedProductOfficeLasted
Jan 10, 1:20 PM CSTTornado WatchSPC11 hr
Jan 10, 2:59 PM CSTMesoscale DiscussionSPC2 hr
Jan 10, 4:55 PM CSTMesoscale DiscussionSPC2 hr
Jan 10, 6:44 PM CSTSevere Thunderstorm WarningFWD36 min
Jan 10, 7:30 PM CSTMesoscale DiscussionSPC2 hr
Jan 13, 9:43 PM CSTDense Fog AdvisoryFWD12 hr
Jan 15, 12:55 AM CSTDense Fog AdvisoryFWD7 hr
Jan 17, 3:42 PM CSTDense Fog AdvisoryFWD8 hr
Jan 22, 6:08 PM CSTDense Fog AdvisoryFWD13 hr
Jan 26, 11:46 PM CSTDense Fog AdvisoryFWD11 hr
Jan 28, 11:47 AM CSTWind AdvisoryFWD20 hr
Mar 3, 9:05 PM CSTMesoscale DiscussionSPC2 hr
Mar 4, 4:20 AM CSTMesoscale DiscussionSPC115 min
Mar 4, 5:44 AM CSTSpecial Weather StatementFWD31 min
Mar 10, 5:10 AM CDTDense Fog AdvisoryFWD5 hr
Mar 19, 10:06 AM CDTAreal Flood AdvisoryFWD3 hr
Mar 19, 6:51 PM CDTMesoscale DiscussionSPC54 min
Mar 20, 3:35 AM CDTAreal Flood AdvisoryFWD115 min
Mar 22, 10:16 PM CDTDense Fog AdvisoryFWD13 hr
Mar 28, 7:40 AM CDTMesoscale DiscussionSPC2 hr
Apr 11, 10:10 AM CDTMesoscale DiscussionSPC2 hr
Apr 11, 5:37 PM CDTMesoscale DiscussionSPC113 min
Apr 12, 1:37 AM CDTMesoscale DiscussionSPC113 min
Apr 12, 1:55 AM CDTWind AdvisoryFWD23 hr
Apr 12, 1:59 AM CDTTornado WatchSPC6 hr
Apr 12, 4:15 AM CDTMesoscale DiscussionSPC90 min
Apr 12, 4:26 AM CDTSpecial Weather StatementFWD34 min
Apr 12, 4:51 AM CDTTornado WarningFWD39 min
Apr 12, 5:09 AM CDTSpecial Weather StatementFWD36 min
Apr 12, 5:43 AM CDTSevere Thunderstorm WarningFWD62 min
Apr 12, 7:18 AM CDTMesoscale DiscussionSPC87 min
Apr 19, 3:17 AM CDTDense Fog AdvisoryFWD6 hr
Apr 19, 7:22 AM CDTMesoscale DiscussionSPC113 min
Apr 19, 7:35 AM CDTSpecial Weather StatementFWD25 min
Apr 19, 7:42 AM CDTSevere Thunderstorm WarningFWD63 min
Apr 22, 10:38 AM CDTMesoscale DiscussionSPC2 hr
Apr 28, 8:06 PM CDTMesoscale DiscussionSPC54 min
Apr 28, 8:25 PM CDTSevere Thunderstorm WatchSPC9 hr
Apr 29, 1:56 AM CDTMesoscale DiscussionSPC2 hr
Apr 29, 2:02 AM CDTSevere Thunderstorm WarningFWD58 min
Apr 29, 2:57 AM CDTSevere Thunderstorm WarningFWD63 min
May 7, 11:19 PM CDTWind AdvisoryFWD21 hr
May 15, 8:56 PM CDTMesoscale DiscussionSPC2 hr
May 15, 9:14 PM CDTSevere Thunderstorm WatchSPC7 hr
May 15, 11:10 PM CDTSevere Thunderstorm WarningFWD80 min
May 15, 11:44 PM CDTMesoscale DiscussionSPC2 hr
May 16, 12:25 AM CDTSpecial Weather StatementFWD50 min
May 16, 12:45 AM CDTAreal Flood AdvisoryFWD3 hr
May 16, 1:21 AM CDTSpecial Weather StatementFWD24 min
May 24, 12:39 PM CDTMesoscale DiscussionSPC96 min
May 24, 1:46 PM CDTSpecial Weather StatementFWD29 min
May 24, 5:06 PM CDTSpecial Weather StatementFWD24 min
May 24, 5:55 PM CDTSevere Thunderstorm WarningFWD32 min
May 27, 11:19 AM CDTSevere Thunderstorm WarningFWD56 min
May 27, 12:09 PM CDTSevere Thunderstorm WarningFWD66 min
May 27, 1:17 PM CDTSevere Thunderstorm WarningFWD58 min
May 27, 1:20 PM CDTSevere Thunderstorm WarningFWD55 min
May 27, 1:24 PM CDTSevere Thunderstorm WatchSPC9 hr
Jun 23, 1:33 AM CDTSevere Thunderstorm WatchSPC6 hr
Jun 23, 3:55 AM CDTMesoscale DiscussionSPC95 min
Jun 29, 2:38 PM CDTHeat AdvisoryFWD3 days
Jul 6, 5:03 PM CDTAreal Flood AdvisoryFWD3 hr
Jul 7, 10:18 AM CDTAreal Flood AdvisoryFWD3 hr
Jul 8, 3:29 PM CDTHeat AdvisoryFWD5 days
Jul 14, 12:15 AM CDTHeat AdvisoryFWD20 hr
Aug 12, 3:04 AM CDTHeat AdvisoryFWD5 days
Aug 12, 3:12 PM CDTExcessive Heat WarningFWD3 days
Aug 16, 9:22 PM CDTSpecial Weather StatementFWD53 min
Aug 27, 2:30 PM CDTHeat AdvisoryFWD53 hr
Aug 29, 6:03 PM CDTHeat AdvisoryFWD3 days
Aug 31, 7:06 PM CDTFlash Flood WatchFWD60 hr
Sep 1, 8:55 PM CDTMesoscale DiscussionSPC95 min
Sep 2, 12:00 AM CDTAreal Flood AdvisoryFWD3 hr
Sep 2, 2:11 AM CDTAreal Flood AdvisoryFWD6 hr
Sep 2, 6:57 AM CDTAreal Flood AdvisoryFWD3 hr
Sep 2, 8:41 AM CDTAreal Flood AdvisoryFWD3 hr
Sep 3, 8:11 AM CDTAreal Flood AdvisoryFWD3 hr
Sep 9, 5:43 PM CDTAreal Flood AdvisoryFWD3 hr
Sep 27, 1:10 PM CDTWind AdvisoryFWD18 hr
Oct 23, 9:30 AM CDTSpecial Weather StatementFWD45 min
Nov 24, 10:25 PM CSTSpecial Weather StatementFWD65 min
Nov 29, 1:08 PM CSTFreeze WatchFWD20 hr
Nov 30, 8:57 AM CSTFreeze WarningFWD24 hr
Dec 11, 7:23 PM CSTDense Fog AdvisoryFWD8 hr
Dec 12, 12:33 PM CSTWind AdvisoryFWD32 hr
Dec 22, 6:35 AM CSTDense Fog AdvisoryFWD3 hr
Dec 22, 11:50 PM CSTWind AdvisoryFWD28 hr

By product

Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.

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.