Weather alerts in La Salle County, Texas, 2015

132 weather alerts in 2015, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

La Salle County and its neighbors

Each county as a circle sized by its count in 2015. Tap one for its archive.

Alerts: 132
Warnings: 29
Watches: 20
Advisories: 28
Busiest month: May47 alerts
Busiest day: May 15, 201514 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 4 tornado warnings covering La Salle County in 2015 had a tornado report inside them; 0 of 1 tornado reports fell inside a warning.

La Salle County, 2015

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	4	0	100%	1	0%
Severe thunderstorm warnings	14	5	64%	7	100%	29 min
Flash flood warnings	6	3	50%	2	100%	87 min

Each office's whole area, 2015

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Corpus Christi, TX: tornado warnings	55	5	91%	16	38%	9 min
NWS Corpus Christi, TX: severe thunderstorm warnings	109	37	66%	99	76%	22 min
NWS Corpus Christi, TX: flash flood warnings	117	51	56%	136	85%	73 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 4, 3:05 PM CST	Freeze Warning	CRP	17 hr
Jan 7, 4:30 AM CST	Freeze Warning	CRP	28 hr
Jan 9, 4:24 AM CST	Wind Chill Advisory	CRP	29 hr
Jan 12, 12:29 AM CST	Dense Fog Advisory	CRP	10 hr
Jan 20, 7:43 PM CST	Dense Fog Advisory	CRP	16 hr
Feb 1, 8:33 AM CST	Dense Fog Advisory	CRP	87 min
Feb 8, 5:22 AM CST	Dense Fog Advisory	CRP	5 hr
Mar 5, 1:54 PM CST	Freeze Warning	CRP	14 hr
Mar 8, 3:28 PM CDT	Flash Flood Watch	CRP	24 hr
Mar 19, 11:53 AM CDT	Flash Flood Watch	CRP	51 hr
Mar 21, 2:26 AM CDT	Areal Flood Advisory	CRP	2 hr
Mar 21, 3:12 AM CDT	Areal Flood Advisory	CRP	2 hr
Mar 21, 4:36 AM CDT	Areal Flood Advisory	CRP	114 min
Mar 21, 5:19 AM CDT	Flash Flood Warning	CRP	116 min
Mar 21, 6:38 AM CDT	Areal Flood Advisory	CRP	112 min
Mar 21, 9:08 AM CDT	Areal Flood Advisory	CRP	82 min
Apr 1, 8:48 AM CDT	Special Weather Statement	CRP	42 min
Apr 1, 9:13 AM CDT	Areal Flood Advisory	CRP	2 hr
Apr 11, 5:56 PM CDT	Areal Flood Advisory	CRP	64 min
Apr 12, 5:39 PM CDT	Mesoscale Discussion	SPC	2 hr
Apr 12, 5:59 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Apr 12, 8:59 PM CDT	Mesoscale Discussion	SPC	91 min
Apr 12, 10:05 PM CDT	Areal Flood Advisory	CRP	3 hr
Apr 13, 11:30 PM CDT	Mesoscale Discussion	SPC	3 hr
Apr 13, 11:50 PM CDT	Severe Thunderstorm Warning	CRP	55 min
Apr 14, 12:43 AM CDT	Severe Thunderstorm Warning	CRP	47 min
Apr 14, 1:28 AM CDT	Severe Thunderstorm Warning	CRP	47 min
Apr 14, 2:14 AM CDT	Special Weather Statement	CRP	46 min
Apr 14, 4:36 AM CDT	Flash Flood Warning	CRP	84 min
Apr 17, 3:20 AM CDT	Flash Flood Watch	CRP	21 hr
Apr 17, 11:53 AM CDT	Severe Thunderstorm Watch	SPC	7 hr
Apr 17, 1:31 PM CDT	Mesoscale Discussion	SPC	89 min
Apr 17, 1:38 PM CDT	Severe Thunderstorm Warning	CRP	67 min
Apr 17, 2:34 PM CDT	Severe Thunderstorm Warning	CRP	56 min
Apr 17, 2:45 PM CDT	Tornado Warning	CRP	30 min
Apr 17, 5:41 PM CDT	Mesoscale Discussion	SPC	94 min
Apr 17, 6:57 PM CDT	Tornado Watch	SPC	5 hr
Apr 17, 10:50 PM CDT	Special Weather Statement	CRP	25 min
Apr 18, 4:32 PM CDT	Mesoscale Discussion	SPC	2 hr
Apr 22, 10:43 AM CDT	Mesoscale Discussion	SPC	2 hr
Apr 22, 10:50 AM CDT	Special Weather Statement	CRP	40 min
Apr 23, 9:34 PM CDT	Mesoscale Discussion	SPC	56 min
Apr 24, 2:36 AM CDT	Mesoscale Discussion	SPC	84 min
Apr 24, 3:01 AM CDT	Severe Thunderstorm Watch	SPC	4 hr
Apr 24, 3:20 AM CDT	Special Weather Statement	CRP	25 min
Apr 24, 4:13 AM CDT	Special Weather Statement	CRP	32 min
Apr 24, 5:41 AM CDT	Mesoscale Discussion	SPC	94 min
Apr 24, 4:56 PM CDT	Mesoscale Discussion	SPC	94 min
Apr 24, 6:53 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Apr 24, 7:55 PM CDT	Severe Thunderstorm Warning	CRP	35 min
Apr 24, 8:30 PM CDT	Severe Thunderstorm Warning	CRP	45 min
Apr 24, 8:47 PM CDT	Severe Thunderstorm Warning	CRP	43 min
Apr 27, 1:27 AM CDT	Tornado Watch	SPC	6 hr
Apr 27, 1:35 AM CDT	Special Weather Statement	CRP	25 min
Apr 27, 2:02 AM CDT	Severe Thunderstorm Warning	CRP	58 min
Apr 27, 2:10 AM CDT	Tornado Warning	CRP	35 min
May 9, 8:06 PM CDT	Mesoscale Discussion	SPC	84 min
May 11, 2:16 PM CDT	Mesoscale Discussion	SPC	119 min
May 11, 2:30 PM CDT	Flash Flood Watch	CRP	51 hr
May 11, 5:40 PM CDT	Areal Flood Advisory	CRP	2 hr
May 11, 6:47 PM CDT	Areal Flood Advisory	CRP	118 min
May 13, 7:34 AM CDT	Mesoscale Discussion	SPC	56 min
May 13, 8:34 AM CDT	Special Weather Statement	CRP	56 min
May 13, 9:52 AM CDT	Tornado Watch	SPC	8 hr
May 13, 10:40 AM CDT	Areal Flood Advisory	CRP	65 min
May 13, 3:56 PM CDT	Tornado Warning	CRP	34 min
May 13, 4:30 PM CDT	Severe Thunderstorm Warning	CRP	45 min
May 14, 5:48 PM CDT	Mesoscale Discussion	SPC	117 min
May 14, 8:00 PM CDT	Special Weather Statement	CRP	30 min
May 14, 8:08 PM CDT	Areal Flood Advisory	CRP	112 min
May 15, 6:23 AM CDT	Severe Thunderstorm Warning	CRP	52 min
May 15, 6:42 AM CDT	Tornado Warning	CRP	33 min
May 15, 6:51 AM CDT	Mesoscale Discussion	SPC	54 min
May 15, 7:10 AM CDT	Flash Flood Warning	CRP	3 hr
May 15, 7:20 AM CDT	Special Weather Statement	CRP	25 min
May 15, 7:28 AM CDT	Severe Thunderstorm Warning	CRP	47 min
May 15, 7:32 AM CDT	Severe Thunderstorm Warning	CRP	43 min
May 15, 7:38 AM CDT	Flash Flood Watch	CRP	11 hr
May 15, 7:42 AM CDT	Flash Flood Warning	CRP	2 hr
May 15, 8:17 AM CDT	Special Weather Statement	CRP	43 min
May 15, 8:25 AM CDT	Flash Flood Warning	CRP	6 hr
May 15, 9:43 AM CDT	Flash Flood Warning	CRP	6 hr
May 18, 9:00 PM CDT	River Flood Warning	CRP	14 days
May 21, 4:10 AM CDT	Flash Flood Watch	CRP	8 hr
May 21, 4:56 AM CDT	Special Weather Statement	CRP	49 min
May 21, 5:53 AM CDT	Areal Flood Advisory	CRP	2 hr
May 22, 3:06 PM CDT	Flash Flood Watch	CRP	43 hr
May 23, 6:06 PM CDT	Mesoscale Discussion	SPC	114 min
May 23, 6:19 PM CDT	Tornado Watch	SPC	9 hr
May 23, 8:39 PM CDT	Mesoscale Discussion	SPC	2 hr
May 28, 9:58 PM CDT	Mesoscale Discussion	SPC	2 hr
May 28, 10:19 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
May 29, 1:07 AM CDT	Special Weather Statement	CRP	53 min
May 29, 1:22 AM CDT	Mesoscale Discussion	SPC	83 min
May 29, 1:34 AM CDT	Severe Thunderstorm Warning	CRP	56 min
May 29, 2:12 AM CDT	Areal Flood Advisory	CRP	3 hr
May 29, 2:18 AM CDT	Special Weather Statement	CRP	57 min
May 29, 3:25 PM CDT	Flash Flood Watch	CRP	36 hr
May 30, 12:10 PM CDT	Mesoscale Discussion	SPC	65 min
May 30, 12:32 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
May 30, 3:45 PM CDT	Special Weather Statement	CRP	60 min
May 30, 4:23 PM CDT	Areal Flood Advisory	CRP	67 min
May 30, 5:01 PM CDT	Mesoscale Discussion	SPC	59 min
Jun 17, 11:41 PM CDT	Areal Flood Advisory	CRP	3 hr
Jun 18, 3:23 AM CDT	Flash Flood Watch	CRP	19 hr
Jun 21, 11:24 AM CDT	Special Weather Statement	CRP	36 min
Jun 27, 6:12 PM CDT	Special Weather Statement	CRP	33 min
Jun 27, 6:46 PM CDT	Special Weather Statement	CRP	29 min
Jun 27, 7:44 PM CDT	Special Weather Statement	CRP	31 min
Jun 30, 1:30 PM CDT	Special Weather Statement	CRP	30 min
Jun 30, 2:01 PM CDT	Special Weather Statement	CRP	59 min
Jun 30, 2:57 PM CDT	Special Weather Statement	CRP	48 min
Jul 1, 11:39 AM CDT	Special Weather Statement	CRP	66 min
Jul 26, 3:18 AM CDT	Heat Advisory	CRP	16 hr
Aug 7, 3:14 AM CDT	Heat Advisory	CRP	16 hr
Aug 12, 4:07 PM CDT	Mesoscale Discussion	SPC	53 min
Aug 12, 7:49 PM CDT	Special Weather Statement	CRP	26 min
Aug 13, 3:11 PM CDT	Special Weather Statement	CRP	49 min
Aug 13, 3:13 PM CDT	Mesoscale Discussion	SPC	47 min
Aug 20, 11:53 AM CDT	Special Weather Statement	CRP	37 min
Aug 20, 12:35 PM CDT	Special Weather Statement	CRP	25 min
Sep 25, 3:01 PM CDT	Mesoscale Discussion	SPC	2 hr
Sep 25, 5:05 PM CDT	Special Weather Statement	CRP	40 min
Sep 25, 5:41 PM CDT	Special Weather Statement	CRP	49 min
Oct 8, 4:10 PM CDT	Special Weather Statement	CRP	65 min
Oct 9, 9:12 AM CDT	Areal Flood Advisory	CRP	3 hr
Oct 13, 8:21 PM CDT	River Flood Warning	CRP	4 days
Oct 22, 11:43 AM CDT	Flash Flood Watch	CRP	58 hr
Nov 20, 3:09 PM CST	Wind Advisory	CRP	27 hr
Dec 22, 1:10 AM CST	Dense Fog Advisory	CRP	10 hr
Dec 24, 9:31 PM CST	Dense Fog Advisory	CRP	12 hr
Dec 27, 3:33 AM CST	Wind Advisory	CRP	24 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	14
Tornado Warning	4
Severe Thunderstorm Watch	6
Tornado Watch	4
Mesoscale Discussion	25
Special Weather Statement	30
Flooding
Flash Flood Warning	6
River Flood Warning	2
Flash Flood Watch	10
Areal Flood Advisory	17
Heat
Heat Advisory	2
Cold
Freeze Warning	3
Wind Chill Advisory	1
Wind and dust
Wind Advisory	2
Fog and smoke
Dense Fog Advisory	6

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2014 2016

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.