Alert archive / Texas / Karnes County

Weather alerts in Karnes County, Texas, 2020

97 weather alerts in 2020, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Karnes County and its neighbors

Each county as a circle sized by its count in 2020. Tap one for its archive.

Alerts
97
Warnings
19
Watches
8
Advisories
39
Busiest month
May29 alerts
Busiest day
March 21, 20207 alerts

Over time

By month

Warning verification

How often warnings here had a storm report inside them, and how much warning the reports had.

Karnes County, 2020

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings14471%367%44 min
Flash flood warnings220%0

Each office's whole area, 2020

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Austin/San Antonio, TX: tornado warnings33779%786%16 min
NWS Austin/San Antonio, TX: severe thunderstorm warnings2237765%23588%26 min
NWS Austin/San Antonio, TX: flash flood warnings311455%2789%64 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 2, 10:52 PM CSTDense Fog AdvisoryEWX7 hr
Jan 10, 2:52 PM CSTMesoscale DiscussionSPC113 min
Jan 10, 3:30 PM CSTSevere Thunderstorm WatchSPC68 days
Jan 13, 7:32 PM CSTDense Fog AdvisoryEWX14 hr
Jan 22, 9:01 PM CSTDense Fog AdvisoryEWX10 hr
Jan 26, 12:42 AM CSTDense Fog AdvisoryEWX8 hr
Feb 17, 2:23 AM CSTDense Fog AdvisoryEWX8 hr
Mar 19, 7:23 PM CDTMesoscale DiscussionSPC3 hr
Mar 21, 9:17 AM CDTSpecial Weather StatementEWX43 min
Mar 21, 9:57 AM CDTSpecial Weather StatementEWX63 min
Mar 21, 10:08 AM CDTSevere Thunderstorm WarningEWX37 min
Mar 21, 10:34 AM CDTMesoscale DiscussionSPC116 min
Mar 21, 11:33 AM CDTSpecial Weather StatementCRP27 min
Mar 21, 12:53 PM CDTAreal Flood AdvisoryEWX112 min
Mar 21, 2:25 PM CDTAreal Flood AdvisoryEWX4 hr
Mar 25, 7:10 AM CDTDense Fog AdvisoryEWX3 hr
Mar 25, 10:04 AM CDTDense Fog AdvisoryEWX116 min
Apr 3, 12:41 PM CDTSevere Thunderstorm WatchSPC7 hr
Apr 3, 2:34 PM CDTMesoscale DiscussionSPC86 min
Apr 3, 5:52 PM CDTMesoscale DiscussionSPC83 min
Apr 3, 7:17 PM CDTAreal Flood AdvisoryEWX3 hr
Apr 7, 3:22 AM CDTDense Fog AdvisoryEWX7 hr
Apr 9, 2:47 PM CDTSevere Thunderstorm WatchSPC7 hr
Apr 9, 7:34 PM CDTSevere Thunderstorm WarningEWX56 min
Apr 9, 7:59 PM CDTMesoscale DiscussionSPC2 hr
Apr 9, 8:30 PM CDTSevere Thunderstorm WarningEWX30 min
Apr 11, 8:37 PM CDTTornado WatchSPC5 hr
Apr 11, 11:03 PM CDTMesoscale DiscussionSPC57 min
Apr 12, 2:23 AM CDTWind AdvisoryEWX17 hr
Apr 19, 1:06 AM CDTDense Fog AdvisoryEWX8 hr
Apr 19, 9:07 AM CDTDense Fog AdvisoryEWX113 min
Apr 23, 1:07 AM CDTDense Fog AdvisoryEWX5 hr
Apr 25, 11:46 AM CDTSevere Thunderstorm WarningEWX44 min
Apr 25, 12:53 PM CDTSevere Thunderstorm WarningEWX52 min
May 12, 2:12 PM CDTMesoscale DiscussionSPC93 min
May 12, 7:17 PM CDTSpecial Weather StatementEWX58 min
May 12, 7:33 PM CDTAreal Flood AdvisoryEWX3 hr
May 12, 7:51 PM CDTSpecial Weather StatementEWX54 min
May 12, 7:59 PM CDTFlash Flood Warning Considerable damage threatEWX3 hr
May 12, 8:24 PM CDTSpecial Weather StatementEWX51 min
May 15, 8:56 PM CDTMesoscale DiscussionSPC2 hr
May 15, 9:14 PM CDTSevere Thunderstorm WatchSPC7 hr
May 15, 10:55 PM CDTSevere Thunderstorm WarningEWX65 min
May 15, 11:44 PM CDTMesoscale DiscussionSPC2 hr
May 15, 11:54 PM CDTSevere Thunderstorm WarningEWX66 min
May 16, 12:29 AM CDTAreal Flood AdvisoryEWX3 hr
May 24, 8:21 PM CDTMesoscale DiscussionSPC114 min
May 24, 8:59 PM CDTSevere Thunderstorm WarningEWX61 min
May 24, 9:05 PM CDTSevere Thunderstorm WatchSPC7 hr
May 24, 10:04 PM CDTSevere Thunderstorm WarningEWX56 min
May 25, 7:25 PM CDTMesoscale DiscussionSPC65 min
May 25, 7:49 PM CDTSevere Thunderstorm WatchSPC8 hr
May 25, 11:18 PM CDTSpecial Weather StatementEWX42 min
May 25, 11:36 PM CDTSevere Thunderstorm WarningEWX39 min
May 25, 11:39 PM CDTMesoscale DiscussionSPC2 hr
May 26, 12:21 AM CDTAreal Flood AdvisoryEWX3 hr
May 26, 4:49 PM CDTMesoscale DiscussionSPC86 min
May 27, 5:05 PM CDTMesoscale DiscussionSPC115 min
May 27, 5:23 PM CDTSevere Thunderstorm WatchSPC8 hr
May 27, 9:35 PM CDTMesoscale DiscussionSPC115 min
May 27, 9:57 PM CDTSevere Thunderstorm WarningEWX63 min
May 27, 10:56 PM CDTSevere Thunderstorm WarningEWX32 min
May 28, 6:29 PM CDTMesoscale DiscussionSPC2 hr
Jun 8, 2:26 PM CDTHeat AdvisoryEWX29 hr
Jun 23, 9:41 PM CDTSevere Thunderstorm WarningEWX31 min
Jun 23, 10:05 PM CDTSpecial Weather StatementEWX55 min
Jun 23, 10:11 PM CDTSevere Thunderstorm WarningEWX51 min
Jun 23, 10:56 PM CDTSpecial Weather StatementEWX64 min
Jun 26, 6:26 AM CDTAreal Flood AdvisoryEWX3 hr
Jul 10, 2:14 AM CDTHeat AdvisoryEWX17 hr
Jul 10, 2:12 PM CDTHeat AdvisoryEWX30 hr
Jul 11, 2:14 PM CDTExcessive Heat WarningEWX54 hr
Jul 13, 3:09 PM CDTHeat AdvisoryEWX29 hr
Aug 2, 4:24 PM CDTSpecial Weather StatementEWX51 min
Aug 3, 7:17 PM CDTSpecial Weather StatementEWX43 min
Aug 12, 3:22 AM CDTHeat AdvisoryEWX16 hr
Aug 13, 4:05 AM CDTHeat AdvisoryEWX4 days
Aug 18, 7:23 PM CDTSpecial Weather StatementEWX52 min
Aug 18, 9:27 PM CDTSpecial Weather StatementEWX63 min
Aug 28, 4:03 AM CDTHeat AdvisoryEWX16 hr
Aug 28, 2:46 PM CDTHeat AdvisoryEWX29 hr
Aug 30, 3:13 AM CDTHeat AdvisoryEWX65 hr
Sep 3, 8:02 PM CDTSpecial Weather StatementEWX58 min
Sep 10, 12:09 AM CDTAreal Flood AdvisoryEWX3 hr
Sep 10, 1:23 AM CDTFlash Flood Warning Considerable damage threatEWX5 hr
Sep 10, 8:05 PM CDTRiver Flood WarningEWX18 hr
Oct 14, 7:59 AM CDTDense Fog AdvisoryEWX2 hr
Nov 6, 4:15 AM CSTDense Fog AdvisoryEWX6 hr
Nov 10, 2:06 AM CSTDense Fog AdvisoryEWX6 hr
Nov 19, 7:16 AM CSTDense Fog AdvisoryEWX3 hr
Nov 20, 3:33 AM CSTDense Fog AdvisoryEWX6 hr
Nov 21, 3:18 AM CSTDense Fog AdvisoryEWX6 hr
Nov 30, 1:59 PM CSTFreeze WarningEWX19 hr
Dec 11, 8:46 PM CSTDense Fog AdvisoryEWX10 hr
Dec 12, 7:34 PM CSTWind AdvisoryEWX28 hr
Dec 22, 7:28 AM CSTDense Fog AdvisoryEWX3 hr
Dec 23, 11:33 AM CSTWind AdvisoryEWX18 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.