Alert archive / Texas / Nacogdoches County

Weather alerts in Nacogdoches County, Texas, 2025

249 weather alerts in 2025, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Nacogdoches County and its neighbors

Each county as a circle sized by its count in 2025. Tap one for its archive.

Alerts: 249
Warnings: 78
Watches: 29
Advisories: 51
Busiest month: March43 alerts
Busiest day: March 31, 202514 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 2 tornado warnings covering Nacogdoches County in 2025 had a tornado report inside them.

Nacogdoches County, 2025

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	2	0	100%	0
Severe thunderstorm warnings	45	23	49%	8	100%	24 min
Flash flood warnings	9	6	33%	5	100%	23 min

Each office's whole area, 2025

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Shreveport, LA: tornado warnings	97	28	71%	53	74%	19 min
NWS Shreveport, LA: severe thunderstorm warnings	479	257	46%	484	86%	23 min
NWS Shreveport, LA: flash flood warnings	104	60	42%	144	90%	94 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 5, 2:57 AM CST	Wind Advisory	SHV	27 hr
Jan 5, 3:05 AM CST	Cold Weather Advisory	SHV	30 hr
Jan 5, 9:08 AM CST	Mesoscale Discussion	SPC	3 hr
Jan 5, 10:29 AM CST	Tornado Watch	SPC	8 hr
Jan 8, 1:09 PM CST	Winter Weather Advisory	SHV	47 hr
Jan 9, 7:44 AM CST	River Flood Warning	SHV	62 hr
Jan 9, 7:47 AM CST	River Flood Warning	SHV	8 days
Jan 18, 9:25 AM CST	Cold Weather Advisory	SHV	24 hr
Jan 18, 1:10 PM CST	Winter Storm Watch	SHV	37 hr
Jan 19, 3:06 AM CST	Cold Weather Advisory	SHV	30 hr
Jan 19, 9:01 AM CST	Freeze Warning	SHV	24 hr
Jan 20, 2:20 AM CST	Winter Weather Advisory	SHV	34 hr
Jan 20, 9:13 AM CST	Cold Weather Advisory	SHV	24 hr
Jan 21, 4:23 AM CST	Freeze Warning	SHV	29 hr
Feb 10, 2:28 PM CST	Flood Watch	SHV	49 hr
Feb 11, 8:09 AM CST	River Flood Warning	SHV	4 days
Feb 11, 8:10 AM CST	River Flood Warning	SHV	15 days
Feb 12, 2:08 AM CST	Mesoscale Discussion	SPC	67 min
Feb 12, 3:11 AM CST	Areal Flood Advisory	SHV	3 hr
Feb 15, 3:42 PM CST	Special Weather Statement	SHV	48 min
Feb 19, 2:51 AM CST	Cold Weather Advisory	SHV	31 hr
Feb 20, 2:52 AM CST	Cold Weather Advisory	SHV	31 hr
Feb 24, 4:05 AM CST	Dense Fog Advisory	SHV	7 hr
Feb 24, 2:00 PM CST	Dense Fog Advisory	SHV	20 hr
Mar 3, 2:15 PM CST	Wind Advisory	SHV	52 hr
Mar 4, 7:49 AM CST	Mesoscale Discussion	SPC	116 min
Mar 4, 8:13 AM CST	Tornado Watch	SPC	7 hr
Mar 4, 8:45 AM CST	Severe Thunderstorm Warning	SHV	60 min
Mar 4, 9:40 AM CST	Severe Thunderstorm Warning	SHV	65 min
Mar 8, 7:52 AM CST	Mesoscale Discussion	SPC	113 min
Mar 12, 4:11 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Mar 12, 6:27 PM CDT	Mesoscale Discussion	SPC	2 hr
Mar 12, 8:01 PM CDT	Special Weather Statement	SHV	44 min
Mar 12, 8:26 PM CDT	Mesoscale Discussion	SPC	64 min
Mar 14, 7:39 PM CDT	Mesoscale Discussion	SPC	2 hr
Mar 15, 2:32 AM CDT	Mesoscale Discussion	SPC	58 min
Mar 15, 2:56 AM CDT	Severe Thunderstorm Watch	SPC	7 hr
Mar 15, 4:54 AM CDT	Severe Thunderstorm Warning	SHV	36 min
Mar 15, 5:24 AM CDT	Severe Thunderstorm Warning Considerable damage threat	SHV	51 min
Mar 18, 12:58 AM CDT	Wind Advisory	SHV	27 hr
Mar 18, 6:25 PM CDT	Wind Advisory	SHV	28 hr
Mar 23, 5:29 PM CDT	Mesoscale Discussion	SPC	3 hr
Mar 23, 6:22 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Mar 23, 7:03 PM CDT	Severe Thunderstorm Warning	SHV	57 min
Mar 28, 10:46 AM CDT	Mesoscale Discussion	SPC	119 min
Mar 28, 12:07 PM CDT	Mesoscale Discussion	SPC	83 min
Mar 28, 12:23 PM CDT	Tornado Watch	SPC	8 hr
Mar 28, 2:10 PM CDT	River Flood Warning	SHV	22 days
Mar 28, 3:27 PM CDT	Mesoscale Discussion	SPC	93 min
Mar 28, 4:45 PM CDT	Areal Flood Advisory	SHV	3 hr
Mar 28, 5:31 PM CDT	Mesoscale Discussion	SPC	119 min
Mar 30, 6:08 PM CDT	Mesoscale Discussion	SPC	3 hr
Mar 30, 6:38 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Mar 30, 7:24 PM CDT	Severe Thunderstorm Warning Considerable damage threat	SHV	50 min
Mar 30, 8:10 PM CDT	Severe Thunderstorm Warning Considerable damage threat	SHV	42 min
Mar 30, 9:16 PM CDT	Severe Thunderstorm Warning	SHV	27 min
Mar 30, 9:56 PM CDT	Severe Thunderstorm Warning Considerable damage threat	SHV	31 min
Mar 30, 9:58 PM CDT	Mesoscale Discussion	SPC	2 hr
Mar 30, 9:59 PM CDT	Flash Flood Warning	SHV	4 hr
Mar 30, 10:26 PM CDT	Severe Thunderstorm Warning	SHV	32 min
Mar 30, 11:21 PM CDT	Special Weather Statement	SHV	24 min
Mar 31, 12:05 AM CDT	Severe Thunderstorm Warning	SHV	40 min
Mar 31, 12:39 AM CDT	Mesoscale Discussion	SPC	2 hr
Mar 31, 12:40 AM CDT	Special Weather Statement	SHV	65 min
Mar 31, 1:35 AM CDT	Severe Thunderstorm Watch	SPC	6 hr
Mar 31, 1:48 AM CDT	River Flood Warning	SHV	58 hr
Mar 31, 1:51 AM CDT	River Flood Warning	SHV	13 days
Apr 2, 8:38 AM CDT	Wind Advisory	SHV	10 hr
Apr 3, 3:43 PM CDT	Mesoscale Discussion	SPC	92 min
Apr 4, 12:57 PM CDT	Tornado Watch	SPC	8 hr
Apr 5, 9:56 AM CDT	Tornado Watch	SPC	9 hr
Apr 5, 2:02 PM CDT	Flash Flood Warning	SHV	6 hr
Apr 5, 2:22 PM CDT	Special Weather Statement	SHV	38 min
Apr 5, 2:35 PM CDT	Severe Thunderstorm Warning	SHV	40 min
Apr 6, 2:49 PM CDT	River Flood Warning	SHV	18 hr
Apr 20, 5:27 PM CDT	Special Weather Statement	SHV	63 min
Apr 20, 6:33 PM CDT	Special Weather Statement	SHV	72 min
Apr 20, 7:29 PM CDT	Special Weather Statement	SHV	76 min
Apr 22, 10:59 PM CDT	Special Weather Statement	SHV	61 min
Apr 22, 11:14 PM CDT	Flash Flood Warning	SHV	3 hr
Apr 24, 8:52 AM CDT	River Flood Warning	SHV	28 days
Apr 24, 2:53 PM CDT	Severe Thunderstorm Watch	SPC	5 hr
Apr 24, 5:05 PM CDT	Severe Thunderstorm Warning	SHV	55 min
Apr 24, 5:28 PM CDT	Mesoscale Discussion	SPC	2 hr
Apr 24, 5:57 PM CDT	Severe Thunderstorm Warning	SHV	63 min
Apr 24, 6:58 PM CDT	Special Weather Statement	SHV	47 min
Apr 24, 7:04 PM CDT	Areal Flood Advisory	SHV	3 hr
Apr 30, 12:17 PM CDT	Mesoscale Discussion	SPC	118 min
Apr 30, 1:06 PM CDT	Tornado Watch	SPC	7 hr
Apr 30, 7:49 PM CDT	Severe Thunderstorm Watch	SPC	4 hr
Apr 30, 10:23 PM CDT	Severe Thunderstorm Warning	SHV	36 min
Apr 30, 11:10 PM CDT	Mesoscale Discussion	SPC	95 min
Apr 30, 11:11 PM CDT	Severe Thunderstorm Warning	SHV	34 min
May 1, 9:59 AM CDT	River Flood Warning	SHV	72 hr
May 2, 11:05 AM CDT	Mesoscale Discussion	SPC	115 min
May 2, 12:10 PM CDT	Severe Thunderstorm Watch	SPC	9 hr
May 2, 3:34 PM CDT	Flash Flood Warning	SHV	5 hr
May 2, 4:57 PM CDT	Special Weather Statement	SHV	33 min
May 2, 5:05 PM CDT	Flash Flood Warning	SHV	3 hr
May 3, 11:59 AM CDT	River Flood Warning	SHV	11 days
May 5, 2:00 AM CDT	Flood Watch	SHV	53 hr
May 6, 9:53 AM CDT	Severe Thunderstorm Watch	SPC	6 hr
May 6, 1:19 PM CDT	Mesoscale Discussion	SPC	86 min
May 6, 1:36 PM CDT	Tornado Watch	SPC	8 hr
May 6, 2:00 PM CDT	Severe Thunderstorm Warning Considerable damage threat	SHV	60 min
May 6, 2:37 PM CDT	Severe Thunderstorm Warning Considerable damage threat	SHV	53 min
May 6, 3:03 PM CDT	Severe Thunderstorm Warning Considerable damage threat	SHV	42 min
May 6, 3:21 PM CDT	Severe Thunderstorm Warning Considerable damage threat	SHV	41 min
May 6, 3:48 PM CDT	Mesoscale Discussion	SPC	87 min
May 6, 4:02 PM CDT	Severe Thunderstorm Warning	SHV	43 min
May 6, 5:00 PM CDT	Flash Flood Warning	SHV	3 hr
May 6, 9:30 PM CDT	River Flood Warning	SHV	13 hr
May 8, 8:18 AM CDT	River Flood Warning	SHV	4 hr
May 16, 7:27 PM CDT	Mesoscale Discussion	SPC	2 hr
May 20, 1:14 PM CDT	Mesoscale Discussion	SPC	2 hr
May 25, 1:45 PM CDT	Flood Watch	SHV	41 hr
May 26, 6:28 AM CDT	Severe Thunderstorm Warning	SHV	62 min
May 26, 7:24 AM CDT	Special Weather Statement	SHV	66 min
May 26, 8:16 AM CDT	Special Weather Statement	SHV	59 min
May 26, 11:55 PM CDT	Special Weather Statement	SHV	65 min
May 27, 12:05 AM CDT	Severe Thunderstorm Warning	SHV	40 min
May 27, 12:45 AM CDT	Severe Thunderstorm Warning	SHV	45 min
May 27, 1:27 AM CDT	Severe Thunderstorm Warning	SHV	48 min
May 27, 8:39 AM CDT	River Flood Warning	SHV	51 days
Jun 1, 11:22 PM CDT	Special Weather Statement	SHV	38 min
Jun 4, 4:36 PM CDT	Areal Flood Advisory	SHV	3 hr
Jun 8, 4:32 PM CDT	Severe Thunderstorm Warning	SHV	58 min
Jun 8, 4:37 PM CDT	Mesoscale Discussion	SPC	53 min
Jun 8, 5:06 PM CDT	Severe Thunderstorm Watch	SPC	4 hr
Jun 8, 5:25 PM CDT	Severe Thunderstorm Warning Considerable damage threat	SHV	80 min
Jun 8, 6:18 PM CDT	Mesoscale Discussion	SPC	87 min
Jun 8, 6:35 PM CDT	Severe Thunderstorm Warning Considerable damage threat	SHV	70 min
Jun 8, 8:34 PM CDT	Severe Thunderstorm Watch PDS	SPC	7 hr
Jun 8, 11:29 PM CDT	Mesoscale Discussion	SPC	91 min
Jun 9, 12:06 AM CDT	Severe Thunderstorm Warning Destructive damage threat	SHV	69 min
Jun 9, 1:13 AM CDT	Special Weather Statement	SHV	92 min
Jun 10, 10:32 AM CDT	Special Weather Statement	SHV	58 min
Jun 10, 12:16 PM CDT	Special Weather Statement	SHV	29 min
Jun 10, 12:46 PM CDT	Special Weather Statement	SHV	44 min
Jun 10, 1:37 PM CDT	Special Weather Statement	SHV	53 min
Jun 11, 2:53 AM CDT	Flood Watch	SHV	40 hr
Jun 11, 12:43 PM CDT	Special Weather Statement	SHV	47 min
Jun 11, 1:35 PM CDT	Special Weather Statement	SHV	55 min
Jun 11, 8:42 PM CDT	River Flood Warning	SHV	64 hr
Jun 12, 6:22 AM CDT	Special Weather Statement	SHV	53 min
Jun 12, 11:02 AM CDT	Flash Flood Warning	SHV	3 hr
Jun 13, 3:16 PM CDT	Special Weather Statement	SHV	29 min
Jun 15, 5:01 PM CDT	Special Weather Statement	SHV	59 min
Jun 19, 2:00 PM CDT	Heat Advisory	SHV	29 hr
Jun 21, 2:40 AM CDT	Heat Advisory	SHV	16 hr
Jun 22, 2:25 AM CDT	Heat Advisory	SHV	16 hr
Jun 23, 1:05 AM CDT	Heat Advisory	SHV	17 hr
Jun 23, 2:28 PM CDT	Heat Advisory	SHV	28 hr
Jun 24, 5:43 PM CDT	Severe Thunderstorm Warning	SHV	47 min
Jun 25, 3:25 PM CDT	Special Weather Statement	SHV	35 min
Jun 25, 3:36 PM CDT	Special Weather Statement	SHV	39 min
Jun 25, 3:55 PM CDT	Special Weather Statement	SHV	35 min
Jun 25, 4:02 PM CDT	Special Weather Statement	SHV	43 min
Jun 25, 4:24 PM CDT	Special Weather Statement	SHV	36 min
Jun 25, 4:39 PM CDT	Special Weather Statement	SHV	36 min
Jun 26, 11:37 AM CDT	River Flood Warning	SHV	6 days
Jun 27, 7:01 PM CDT	Special Weather Statement	SHV	74 min
Jul 4, 6:23 PM CDT	Special Weather Statement	SHV	67 min
Jul 8, 4:00 PM CDT	Special Weather Statement	SHV	30 min
Jul 9, 3:50 PM CDT	Special Weather Statement	SHV	40 min
Jul 9, 3:57 PM CDT	Severe Thunderstorm Warning	SHV	48 min
Jul 9, 5:18 PM CDT	Areal Flood Advisory	SHV	3 hr
Jul 9, 9:51 PM CDT	River Flood Warning	SHV	11 hr
Jul 12, 2:34 PM CDT	Severe Thunderstorm Warning	SHV	41 min
Jul 12, 4:51 PM CDT	Special Weather Statement	SHV	39 min
Jul 12, 5:34 PM CDT	Special Weather Statement	SHV	41 min
Jul 13, 3:41 PM CDT	Mesoscale Discussion	SPC	2 hr
Jul 13, 4:59 PM CDT	Special Weather Statement	SHV	61 min
Jul 13, 5:17 PM CDT	Severe Thunderstorm Warning	SHV	43 min
Jul 13, 5:53 PM CDT	Severe Thunderstorm Warning	SHV	67 min
Jul 14, 11:28 AM CDT	River Flood Warning	SHV	7 days
Jul 14, 5:06 PM CDT	Special Weather Statement	SHV	39 min
Jul 14, 5:52 PM CDT	Special Weather Statement	SHV	23 min
Jul 15, 11:32 AM CDT	Heat Advisory	SHV	55 hr
Jul 19, 11:41 AM CDT	Heat Advisory	SHV	6 days
Jul 21, 11:32 AM CDT	River Flood Warning	SHV	5 hr
Jul 26, 11:05 AM CDT	Heat Advisory	SHV	5 days
Aug 1, 10:30 AM CDT	Heat Advisory	SHV	8 hr
Aug 2, 6:29 AM CDT	Areal Flood Advisory	SHV	2 hr
Aug 7, 12:27 PM CDT	Heat Advisory	SHV	31 hr
Aug 8, 11:42 AM CDT	Heat Advisory	SHV	31 hr
Aug 10, 5:47 PM CDT	Special Weather Statement	SHV	43 min
Aug 10, 6:28 PM CDT	Special Weather Statement	SHV	47 min
Aug 12, 11:59 PM CDT	Heat Advisory	SHV	19 hr
Aug 13, 11:39 AM CDT	Heat Advisory	SHV	7 days
Aug 16, 6:12 PM CDT	Special Weather Statement	SHV	33 min
Aug 18, 3:08 PM CDT	Special Weather Statement	SHV	37 min
Aug 18, 3:37 PM CDT	Severe Thunderstorm Warning	SHV	38 min
Aug 18, 4:37 PM CDT	Severe Thunderstorm Warning	SHV	38 min
Aug 20, 1:03 PM CDT	Special Weather Statement	SHV	27 min
Aug 20, 1:29 PM CDT	Special Weather Statement	SHV	31 min
Aug 20, 1:59 PM CDT	Special Weather Statement	SHV	31 min
Aug 20, 2:30 PM CDT	Special Weather Statement	SHV	45 min
Aug 20, 2:40 PM CDT	Areal Flood Advisory	SHV	2 hr
Aug 21, 2:52 PM CDT	Special Weather Statement	SHV	23 min
Aug 21, 4:37 PM CDT	Severe Thunderstorm Warning	SHV	38 min
Aug 29, 8:44 AM CDT	Areal Flood Advisory	SHV	5 hr
Aug 30, 3:40 AM CDT	Areal Flood Advisory	SHV	2 hr
Aug 30, 10:16 AM CDT	Areal Flood Advisory	SHV	3 hr
Sep 24, 10:56 AM CDT	Areal Flood Advisory	SHV	3 hr
Oct 18, 1:20 PM CDT	Tornado Watch	SPC	11 hr
Oct 18, 4:03 PM CDT	Special Weather Statement	SHV	42 min
Oct 18, 4:20 PM CDT	Special Weather Statement	SHV	25 min
Oct 18, 4:41 PM CDT	Mesoscale Discussion	SPC	2 hr
Oct 18, 11:20 PM CDT	Special Weather Statement	SHV	40 min
Oct 24, 1:35 PM CDT	Flood Watch	SHV	39 hr
Oct 28, 12:01 PM CDT	Wind Advisory	SHV	31 hr
Oct 28, 2:02 PM CDT	Special Weather Statement	SHV	28 min
Oct 28, 2:32 PM CDT	Severe Thunderstorm Warning	SHV	43 min
Oct 28, 2:49 PM CDT	Mesoscale Discussion	SPC	116 min
Oct 28, 3:32 PM CDT	Special Weather Statement	SHV	28 min
Oct 28, 3:48 PM CDT	Tornado Watch	SPC	5 hr
Oct 28, 4:00 PM CDT	Special Weather Statement	SHV	30 min
Oct 28, 4:03 PM CDT	Tornado Warning	SHV	14 min
Oct 28, 4:12 PM CDT	Severe Thunderstorm Warning	SHV	42 min
Oct 28, 5:01 PM CDT	Severe Thunderstorm Warning	SHV	44 min
Nov 5, 8:38 PM CST	Dense Fog Advisory	SHV	12 hr
Nov 8, 10:36 AM CST	Freeze Watch	SHV	11 hr
Nov 8, 10:00 PM CST	Freeze Warning	SHV	35 hr
Nov 24, 11:49 AM CST	Tornado Watch	SPC	7 hr
Nov 24, 1:07 PM CST	Mesoscale Discussion	SPC	83 min
Nov 24, 3:47 PM CST	Mesoscale Discussion	SPC	88 min
Nov 24, 5:29 PM CST	Special Weather Statement	SHV	46 min
Nov 24, 5:59 PM CST	Severe Thunderstorm Warning	SHV	46 min
Nov 24, 6:36 PM CST	Areal Flood Advisory	SHV	114 min
Nov 24, 6:36 PM CST	Tornado Watch	SPC	9 hr
Nov 24, 6:41 PM CST	Special Weather Statement	SHV	49 min
Nov 24, 6:51 PM CST	Severe Thunderstorm Warning	SHV	39 min
Nov 24, 7:15 PM CST	Severe Thunderstorm Warning	SHV	45 min
Nov 24, 7:16 PM CST	Areal Flood Advisory	SHV	3 hr
Nov 24, 7:28 PM CST	Flash Flood Warning	SHV	2 hr
Nov 24, 7:36 PM CST	Severe Thunderstorm Warning	SHV	39 min
Nov 24, 7:43 PM CST	Tornado Warning	SHV	28 min
Nov 24, 7:59 PM CST	Severe Thunderstorm Warning	SHV	61 min
Nov 24, 8:12 PM CST	Flash Flood Warning	SHV	3 hr
Nov 25, 12:41 AM CST	Dense Fog Advisory	SHV	8 hr
Nov 29, 8:34 PM CST	Special Weather Statement	SHV	26 min
Dec 6, 10:11 PM CST	Dense Fog Advisory	SHV	11 hr
Dec 9, 5:56 AM CST	Dense Fog Advisory	SHV	5 hr
Dec 12, 10:08 PM CST	Dense Fog Advisory	SHV	11 hr
Dec 17, 8:09 PM CST	Dense Fog Advisory	SHV	11 hr
Dec 23, 8:23 PM CST	Dense Fog Advisory	SHV	14 hr
Dec 24, 8:30 PM CST	Dense Fog Advisory	SHV	14 hr
Dec 27, 10:57 PM CST	Wind Advisory	SHV	31 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	45
Tornado Warning	2
Severe Thunderstorm Watch	11
Tornado Watch	11
Mesoscale Discussion	33
Special Weather Statement	58
Flooding
Flash Flood Warning	9
River Flood Warning	19
Flood Watch	5
Areal Flood Advisory	13
Winter
Winter Storm Watch	1
Winter Weather Advisory	2
Heat
Heat Advisory	13
Cold
Freeze Warning	3
Freeze Watch	1
Cold Weather Advisory	6
Wind and dust
Wind Advisory	7
Fog and smoke
Dense Fog Advisory	10

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2024 2026

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.