Weather alerts in Medina County, Texas, 2020

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

Medina County and its neighbors

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

Alerts: 116
Warnings: 32
Watches: 14
Advisories: 39
Busiest month: May45 alerts
Busiest day: May 28, 202012 alerts

Over time

By month

Warning verification

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

1 of 2 tornado warnings covering Medina County in 2020 had a tornado report inside them.

Medina County, 2020

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	2	1	50%	0
Severe thunderstorm warnings	25	10	60%	4	50%	30 min
Flash flood warnings	1	0	100%	0

Each office's whole area, 2020

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Austin/San Antonio, TX: tornado warnings	33	7	79%	7	86%	16 min
NWS Austin/San Antonio, TX: severe thunderstorm warnings	223	77	65%	235	88%	26 min
NWS Austin/San Antonio, TX: flash flood warnings	31	14	55%	27	89%	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.

Issued	Product	Office	Lasted
Jan 10, 2:52 PM CST	Mesoscale Discussion	SPC	113 min
Jan 10, 3:30 PM CST	Severe Thunderstorm Watch	SPC	68 days
Jan 10, 5:35 PM CST	Special Weather Statement	EWX	40 min
Jan 10, 5:42 PM CST	Severe Thunderstorm Warning	EWX	63 min
Jan 10, 6:30 PM CST	Mesoscale Discussion	SPC	2 hr
Jan 10, 6:45 PM CST	Special Weather Statement	EWX	60 min
Jan 10, 6:52 PM CST	Severe Thunderstorm Warning	EWX	38 min
Jan 10, 7:19 PM CST	Severe Thunderstorm Warning	EWX	56 min
Jan 13, 4:33 AM CST	Dense Fog Advisory	EWX	6 hr
Jan 13, 7:32 PM CST	Dense Fog Advisory	EWX	14 hr
Jan 15, 4:07 AM CST	Dense Fog Advisory	EWX	3 hr
Jan 16, 9:27 AM CST	Areal Flood Advisory	EWX	6 hr
Jan 22, 9:01 PM CST	Dense Fog Advisory	EWX	10 hr
Jan 26, 12:42 AM CST	Dense Fog Advisory	EWX	8 hr
Jan 28, 3:08 AM CST	Special Weather Statement	EWX	37 min
Feb 16, 6:42 AM CST	Dense Fog Advisory	EWX	3 hr
Feb 17, 2:23 AM CST	Dense Fog Advisory	EWX	8 hr
Mar 4, 2:03 AM CST	Mesoscale Discussion	SPC	117 min
Mar 4, 2:28 AM CST	Severe Thunderstorm Watch	SPC	6 hr
Mar 4, 3:56 AM CST	Severe Thunderstorm Warning	EWX	49 min
Mar 4, 4:43 AM CST	Severe Thunderstorm Warning	EWX	47 min
Mar 19, 7:23 PM CDT	Mesoscale Discussion	SPC	3 hr
Mar 21, 10:34 AM CDT	Mesoscale Discussion	SPC	116 min
Mar 30, 11:11 PM CDT	Dense Fog Advisory	EWX	7 hr
Apr 3, 11:35 AM CDT	Mesoscale Discussion	SPC	115 min
Apr 3, 12:41 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Apr 3, 1:44 PM CDT	Flash Flood Watch	EWX	7 hr
Apr 3, 2:34 PM CDT	Mesoscale Discussion	SPC	86 min
Apr 4, 10:17 AM CDT	Areal Flood Advisory	EWX	3 hr
Apr 7, 3:22 AM CDT	Dense Fog Advisory	EWX	7 hr
Apr 9, 2:47 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Apr 9, 6:00 PM CDT	Severe Thunderstorm Warning	EWX	30 min
Apr 9, 6:24 PM CDT	Special Weather Statement	EWX	66 min
Apr 11, 8:37 PM CDT	Tornado Watch	SPC	5 hr
Apr 11, 11:03 PM CDT	Mesoscale Discussion	SPC	57 min
Apr 11, 11:11 PM CDT	Special Weather Statement	EWX	49 min
Apr 12, 1:59 AM CDT	Tornado Watch	SPC	6 hr
Apr 12, 2:23 AM CDT	Wind Advisory	EWX	17 hr
Apr 19, 1:06 AM CDT	Dense Fog Advisory	EWX	8 hr
Apr 19, 9:07 AM CDT	Dense Fog Advisory	EWX	113 min
Apr 27, 10:27 PM CDT	Special Weather Statement	EWX	48 min
May 8, 3:33 AM CDT	Wind Advisory	EWX	15 hr
May 14, 3:39 AM CDT	Special Weather Statement	EWX	51 min
May 14, 3:47 AM CDT	Areal Flood Advisory	EWX	3 hr
May 15, 8:56 PM CDT	Severe Thunderstorm Warning	EWX	64 min
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, 9:54 PM CDT	Severe Thunderstorm Warning	EWX	66 min
May 15, 10:31 PM CDT	Severe Thunderstorm Warning	EWX	59 min
May 15, 10:53 PM CDT	Areal Flood Advisory	EWX	3 hr
May 15, 10:55 PM CDT	Severe Thunderstorm Warning	EWX	65 min
May 20, 10:29 PM CDT	Special Weather Statement	EWX	46 min
May 23, 8:41 PM CDT	Special Weather Statement	EWX	64 min
May 23, 9:05 PM CDT	Severe Thunderstorm Warning	EWX	40 min
May 24, 5:28 PM CDT	Mesoscale Discussion	SPC	2 hr
May 24, 5:56 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
May 24, 6:46 PM CDT	Special Weather Statement	EWX	44 min
May 24, 6:57 PM CDT	Severe Thunderstorm Warning	EWX	42 min
May 24, 7:10 PM CDT	Severe Thunderstorm Warning	EWX	65 min
May 24, 7:34 PM CDT	Flash Flood Warning Considerable damage threat	EWX	3 hr
May 24, 7:43 PM CDT	Tornado Warning	EWX	32 min
May 24, 8:00 PM CDT	Severe Thunderstorm Warning	EWX	60 min
May 24, 8:04 PM CDT	Tornado Warning	EWX	26 min
May 24, 8:59 PM CDT	Severe Thunderstorm Warning	EWX	61 min
May 24, 9:49 PM CDT	Areal Flood Advisory	EWX	3 hr
May 25, 7:25 PM CDT	Mesoscale Discussion	SPC	65 min
May 25, 7:49 PM CDT	Severe Thunderstorm Watch	SPC	8 hr
May 25, 8:53 PM CDT	Special Weather Statement	EWX	52 min
May 25, 9:25 PM CDT	Areal Flood Advisory	EWX	3 hr
May 25, 11:11 PM CDT	Severe Thunderstorm Warning	EWX	34 min
May 25, 11:38 PM CDT	Severe Thunderstorm Warning	EWX	52 min
May 25, 11:39 PM CDT	Mesoscale Discussion	SPC	2 hr
May 26, 12:26 AM CDT	Severe Thunderstorm Warning	EWX	22 min
May 27, 5:23 PM CDT	Severe Thunderstorm Watch	SPC	8 hr
May 27, 8:29 PM CDT	Severe Thunderstorm Warning	EWX	61 min
May 27, 9:16 PM CDT	Severe Thunderstorm Warning	EWX	44 min
May 27, 9:21 PM CDT	Areal Flood Advisory	EWX	3 hr
May 27, 9:27 PM CDT	Severe Thunderstorm Warning	EWX	48 min
May 27, 9:30 PM CDT	Severe Thunderstorm Warning	EWX	45 min
May 27, 9:35 PM CDT	Mesoscale Discussion	SPC	115 min
May 27, 10:09 PM CDT	Severe Thunderstorm Warning	EWX	66 min
May 27, 11:06 PM CDT	Severe Thunderstorm Warning	EWX	54 min
May 28, 1:44 PM CDT	Mesoscale Discussion	SPC	2 hr
May 28, 2:26 PM CDT	Severe Thunderstorm Watch	SPC	5 hr
May 28, 4:12 PM CDT	Severe Thunderstorm Warning	EWX	18 min
May 28, 4:46 PM CDT	Special Weather Statement	EWX	59 min
Jun 8, 2:26 PM CDT	Heat Advisory	EWX	29 hr
Jul 7, 7:27 PM CDT	Special Weather Statement	EWX	33 min
Jul 10, 2:12 PM CDT	Heat Advisory	EWX	30 hr
Jul 11, 2:14 PM CDT	Excessive Heat Warning	EWX	54 hr
Jul 13, 3:09 PM CDT	Heat Advisory	EWX	29 hr
Jul 31, 6:15 PM CDT	Special Weather Statement	EWX	45 min
Jul 31, 7:44 PM CDT	Special Weather Statement	EWX	46 min
Jul 31, 8:21 PM CDT	Special Weather Statement	EWX	39 min
Jul 31, 9:02 PM CDT	Areal Flood Advisory	EWX	3 hr
Aug 3, 5:53 PM CDT	Areal Flood Advisory	EWX	112 min
Aug 13, 4:05 AM CDT	Heat Advisory	EWX	4 days
Aug 14, 1:40 PM CDT	Excessive Heat Warning	EWX	29 hr
Aug 20, 5:57 PM CDT	Special Weather Statement	EWX	63 min
Aug 28, 4:03 AM CDT	Heat Advisory	EWX	16 hr
Aug 28, 2:46 PM CDT	Heat Advisory	EWX	29 hr
Aug 30, 3:13 AM CDT	Heat Advisory	EWX	65 hr
Sep 3, 5:14 PM CDT	Areal Flood Advisory	EWX	2 hr
Sep 9, 12:01 AM CDT	Areal Flood Advisory	EWX	6 hr
Sep 9, 2:50 AM CDT	Areal Flood Advisory	EWX	3 hr
Sep 9, 3:53 AM CDT	Flash Flood Watch	EWX	33 hr
Sep 27, 12:27 PM CDT	Wind Advisory	EWX	25 hr
Nov 19, 7:16 AM CST	Dense Fog Advisory	EWX	3 hr
Nov 20, 3:33 AM CST	Dense Fog Advisory	EWX	6 hr
Nov 21, 3:18 AM CST	Dense Fog Advisory	EWX	6 hr
Nov 30, 1:59 PM CST	Freeze Warning	EWX	19 hr
Dec 12, 2:05 AM CST	Fire Weather Watch	EWX	26 hr
Dec 12, 7:34 PM CST	Wind Advisory	EWX	28 hr
Dec 13, 4:07 AM CST	Red Flag Warning	EWX	14 hr
Dec 13, 9:07 AM CST	Dense Fog Advisory	EWX	113 min
Dec 23, 11:33 AM CST	Wind Advisory	EWX	18 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	25
Tornado Warning	2
Severe Thunderstorm Watch	9
Tornado Watch	2
Mesoscale Discussion	14
Special Weather Statement	17
Flooding
Flash Flood Warning	1
Flash Flood Watch	2
Areal Flood Advisory	12
Heat
Excessive Heat Warning	2
Heat Advisory	7
Cold
Freeze Warning	1
Wind and dust
Wind Advisory	5
Fire
Red Flag Warning	1
Fire Weather Watch	1
Fog and smoke
Dense Fog Advisory	15

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2019 2021

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.