Alert archive / Arkansas / Sebastian County

Weather alerts in Sebastian County, Arkansas, 2015

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

Sebastian County and its neighbors

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

Alerts: 178
Warnings: 70
Watches: 18
Advisories: 18
Busiest month: May61 alerts
Busiest day: May 10, 201519 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 Sebastian County in 2015 had a tornado report inside them.

Sebastian County, 2015

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	2	0	100%	0
Severe thunderstorm warnings	22	15	32%	16	88%	29 min
Flash flood warnings	18	14	22%	19	95%	187 min

Each office's whole area, 2015

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Tulsa, OK: tornado warnings	80	31	61%	47	74%	16 min
NWS Tulsa, OK: severe thunderstorm warnings	310	141	55%	356	80%	24 min
NWS Tulsa, OK: flash flood warnings	139	85	39%	270	86%	155 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 1, 5:55 AM CST	Mesoscale Discussion	SPC	6 hr
Feb 16, 2:57 AM CST	Mesoscale Discussion	SPC	6 hr
Feb 17, 7:49 PM CST	Special Weather Statement	TSA	41 min
Feb 28, 7:59 PM CST	Mesoscale Discussion	SPC	6 hr
Mar 4, 2:12 PM CST	Mesoscale Discussion	SPC	4 hr
Mar 13, 9:01 AM CDT	Areal Flood Advisory	TSA	119 min
Mar 24, 2:05 PM CDT	Mesoscale Discussion	SPC	85 min
Mar 24, 2:59 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Mar 24, 5:30 PM CDT	Mesoscale Discussion	SPC	90 min
Mar 24, 7:30 PM CDT	Special Weather Statement	TSA	45 min
Mar 24, 7:34 PM CDT	Mesoscale Discussion	SPC	116 min
Mar 24, 8:16 PM CDT	Special Weather Statement	TSA	44 min
Mar 25, 2:16 PM CDT	Severe Thunderstorm Watch	SPC	8 hr
Mar 25, 3:11 PM CDT	Severe Thunderstorm Warning	TSA	49 min
Mar 25, 5:33 PM CDT	Mesoscale Discussion	SPC	87 min
Mar 25, 7:54 PM CDT	Mesoscale Discussion	SPC	66 min
Mar 25, 9:21 PM CDT	Severe Thunderstorm Watch	SPC	8 hr
Mar 25, 9:53 PM CDT	Severe Thunderstorm Warning	TSA	52 min
Mar 25, 10:25 PM CDT	Severe Thunderstorm Warning	TSA	35 min
Mar 25, 11:39 PM CDT	Mesoscale Discussion	SPC	96 min
Mar 25, 11:46 PM CDT	Special Weather Statement	TSA	44 min
Mar 31, 3:57 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Mar 31, 8:14 PM CDT	Mesoscale Discussion	SPC	91 min
Apr 1, 5:14 PM CDT	Mesoscale Discussion	SPC	91 min
Apr 9, 2:32 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Apr 9, 6:11 PM CDT	Mesoscale Discussion	SPC	64 min
Apr 13, 9:29 AM CDT	Areal Flood Advisory	TSA	6 hr
Apr 13, 12:30 PM CDT	Areal Flood Advisory	TSA	7 hr
Apr 13, 3:16 PM CDT	Areal Flood Advisory	TSA	4 hr
Apr 13, 5:09 PM CDT	Flash Flood Warning	TSA	6 hr
Apr 18, 6:25 AM CDT	Areal Flood Advisory	TSA	3 hr
Apr 19, 12:43 PM CDT	Mesoscale Discussion	SPC	2 hr
Apr 19, 1:42 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Apr 19, 3:13 PM CDT	Severe Thunderstorm Warning	TSA	47 min
Apr 19, 3:43 PM CDT	Severe Thunderstorm Warning	TSA	47 min
May 8, 10:43 PM CDT	Mesoscale Discussion	SPC	92 min
May 8, 11:17 PM CDT	Special Weather Statement	TSA	58 min
May 9, 1:58 PM CDT	Mesoscale Discussion	SPC	92 min
May 9, 2:15 PM CDT	Special Weather Statement	TSA	30 min
May 9, 7:45 PM CDT	Severe Thunderstorm Warning	TSA	45 min
May 9, 7:54 PM CDT	Flash Flood Warning	TSA	6 hr
May 9, 8:45 PM CDT	Flash Flood Warning	TSA	9 hr
May 10, 12:46 AM CDT	Special Weather Statement	TSA	44 min
May 10, 12:49 AM CDT	Special Weather Statement	TSA	56 min
May 10, 1:42 AM CDT	Severe Thunderstorm Warning	TSA	48 min
May 10, 1:57 AM CDT	Flash Flood Warning	TSA	3 hr
May 10, 4:34 AM CDT	River Flood Warning	TSA	59 hr
May 10, 4:57 AM CDT	Areal Flood Warning	TSA	6 hr
May 10, 5:27 AM CDT	Areal Flood Warning	TSA	6 hr
May 10, 8:56 AM CDT	Mesoscale Discussion	SPC	2 hr
May 10, 9:28 AM CDT	Tornado Watch	SPC	6 hr
May 10, 9:48 AM CDT	Flash Flood Warning	TSA	6 hr
May 10, 10:27 AM CDT	Severe Thunderstorm Warning	TSA	48 min
May 10, 10:51 AM CDT	Tornado Warning	TSA	24 min
May 10, 11:01 AM CDT	Tornado Warning	TSA	14 min
May 10, 11:13 AM CDT	Severe Thunderstorm Warning	TSA	62 min
May 10, 12:58 PM CDT	Tornado Watch	SPC	10 hr
May 10, 2:52 PM CDT	Areal Flood Warning	TSA	24 hr
May 10, 8:06 PM CDT	Mesoscale Discussion	SPC	54 min
May 10, 8:30 PM CDT	Flash Flood Warning	TSA	6 hr
May 10, 8:38 PM CDT	Severe Thunderstorm Warning	TSA	52 min
May 11, 2:28 AM CDT	Flash Flood Warning	TSA	3 hr
May 11, 1:51 PM CDT	Areal Flood Warning	TSA	24 hr
May 16, 8:42 PM CDT	Tornado Watch	SPC	8 hr
May 17, 1:43 AM CDT	Mesoscale Discussion	SPC	92 min
May 17, 2:37 AM CDT	Flash Flood Warning	TSA	6 hr
May 17, 3:33 AM CDT	Special Weather Statement	TSA	27 min
May 17, 3:12 PM CDT	River Flood Warning	TSA	18 hr
May 19, 11:50 PM CDT	Flash Flood Warning	TSA	5 hr
May 20, 12:27 AM CDT	Special Weather Statement	TSA	33 min
May 20, 4:25 AM CDT	River Flood Warning	TSA	41 hr
May 20, 5:01 AM CDT	Flash Flood Warning	TSA	4 hr
May 20, 8:54 AM CDT	Areal Flood Warning	TSA	24 hr
May 23, 10:49 PM CDT	Mesoscale Discussion	SPC	86 min
May 24, 3:20 AM CDT	River Flood Warning	TSA	12 days
May 24, 8:53 AM CDT	Flash Flood Warning	TSA	12 hr
May 24, 12:34 PM CDT	Tornado Watch	SPC	6 hr
May 24, 8:44 PM CDT	Areal Flood Warning	TSA	24 hr
May 25, 2:52 PM CDT	Tornado Watch	SPC	8 hr
May 25, 5:15 PM CDT	Mesoscale Discussion	SPC	90 min
May 25, 5:21 PM CDT	Flash Flood Warning	TSA	8 hr
May 25, 5:50 PM CDT	Severe Thunderstorm Warning	TSA	55 min
May 25, 6:40 PM CDT	Severe Thunderstorm Warning	TSA	50 min
May 25, 6:44 PM CDT	Special Weather Statement	TSA	46 min
May 25, 7:35 PM CDT	Special Weather Statement	TSA	40 min
May 25, 8:34 PM CDT	Areal Flood Warning	TSA	48 hr
May 27, 9:20 PM CDT	Areal Flood Warning	TSA	48 hr
May 28, 10:37 AM CDT	Mesoscale Discussion	SPC	53 min
May 29, 12:33 PM CDT	Mesoscale Discussion	SPC	87 min
May 29, 2:09 PM CDT	Tornado Watch	SPC	5 hr
May 29, 3:15 PM CDT	Special Weather Statement	TSA	45 min
May 29, 3:33 PM CDT	Special Weather Statement	TSA	42 min
May 29, 4:07 PM CDT	Flash Flood Warning	TSA	113 min
May 29, 4:29 PM CDT	Flash Flood Warning	TSA	6 hr
May 29, 4:48 PM CDT	Mesoscale Discussion	SPC	87 min
May 29, 9:20 PM CDT	Areal Flood Warning	TSA	3 days
Jun 2, 9:37 AM CDT	Areal Flood Warning	TSA	24 hr
Jun 15, 8:39 PM CDT	Areal Flood Advisory	TSA	3 hr
Jun 15, 10:36 PM CDT	Areal Flood Advisory	TSA	3 hr
Jun 16, 6:43 AM CDT	River Flood Warning	TSA	5 days
Jun 16, 7:06 PM CDT	Areal Flood Advisory	TSA	3 hr
Jun 26, 2:35 PM CDT	Mesoscale Discussion	SPC	85 min
Jun 26, 3:31 PM CDT	Severe Thunderstorm Watch	SPC	5 hr
Jun 26, 3:51 PM CDT	Severe Thunderstorm Warning	TSA	24 min
Jun 26, 4:15 PM CDT	Severe Thunderstorm Warning	TSA	60 min
Jun 26, 6:28 PM CDT	Mesoscale Discussion	SPC	92 min
Jun 27, 8:43 AM CDT	River Flood Warning	TSA	39 hr
Jul 2, 2:37 PM CDT	Mesoscale Discussion	SPC	2 hr
Jul 2, 3:21 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Jul 2, 6:46 PM CDT	Mesoscale Discussion	SPC	89 min
Jul 3, 5:04 PM CDT	Mesoscale Discussion	SPC	116 min
Jul 3, 6:38 PM CDT	Severe Thunderstorm Warning	TSA	52 min
Jul 3, 7:32 PM CDT	Special Weather Statement	TSA	43 min
Jul 5, 4:42 PM CDT	Special Weather Statement	TSA	33 min
Jul 5, 4:50 PM CDT	Severe Thunderstorm Warning	TSA	40 min
Jul 5, 5:42 PM CDT	Areal Flood Advisory	TSA	3 hr
Jul 5, 5:49 PM CDT	Flash Flood Warning	TSA	3 hr
Jul 5, 5:51 PM CDT	Severe Thunderstorm Warning	TSA	39 min
Jul 5, 8:12 PM CDT	Flash Flood Warning Emergency	TSA	3 hr
Jul 5, 8:41 PM CDT	Areal Flood Warning	TSA	12 hr
Jul 7, 9:31 PM CDT	River Flood Warning	TSA	69 hr
Jul 8, 12:48 PM CDT	Special Weather Statement	TSA	42 min
Jul 8, 1:33 PM CDT	Special Weather Statement	TSA	42 min
Jul 8, 1:58 PM CDT	Mesoscale Discussion	SPC	92 min
Jul 8, 2:18 PM CDT	Areal Flood Advisory	TSA	3 hr
Jul 8, 2:22 PM CDT	Special Weather Statement	TSA	38 min
Jul 8, 4:10 PM CDT	Special Weather Statement	TSA	35 min
Jul 8, 5:04 PM CDT	Areal Flood Advisory	TSA	3 hr
Jul 9, 8:51 AM CDT	River Flood Warning	TSA	61 hr
Jul 21, 2:09 AM CDT	Areal Flood Warning	TSA	3 hr
Jul 21, 2:55 AM CDT	Areal Flood Warning	TSA	3 hr
Jul 21, 2:58 AM CDT	Special Weather Statement	TSA	47 min
Jul 21, 5:13 AM CDT	Areal Flood Advisory	TSA	3 hr
Aug 5, 11:50 PM CDT	Severe Thunderstorm Warning	TSA	25 min
Aug 6, 1:32 AM CDT	Special Weather Statement	TSA	28 min
Aug 6, 1:48 AM CDT	Severe Thunderstorm Warning	TSA	42 min
Aug 6, 2:41 AM CDT	Areal Flood Advisory	TSA	3 hr
Aug 18, 7:09 PM CDT	Special Weather Statement	TSA	36 min
Aug 19, 5:55 AM CDT	Areal Flood Advisory	TSA	3 hr
Aug 19, 6:43 AM CDT	Areal Flood Advisory	TSA	3 hr
Aug 22, 12:11 PM CDT	Special Weather Statement	TSA	49 min
Aug 22, 12:53 PM CDT	Mesoscale Discussion	SPC	2 hr
Aug 22, 1:00 PM CDT	Special Weather Statement	TSA	45 min
Aug 23, 7:18 AM CDT	Special Weather Statement	TSA	42 min
Aug 23, 7:56 AM CDT	Special Weather Statement	TSA	49 min
Sep 8, 3:26 PM CDT	Special Weather Statement	TSA	49 min
Sep 8, 11:09 PM CDT	Special Weather Statement	TSA	66 min
Sep 11, 4:12 AM CDT	Special Weather Statement	TSA	48 min
Nov 5, 3:32 PM CST	Mesoscale Discussion	SPC	88 min
Nov 5, 4:00 PM CST	Tornado Watch	SPC	5 hr
Nov 5, 5:28 PM CST	Severe Thunderstorm Warning	TSA	47 min
Nov 5, 5:55 PM CST	Mesoscale Discussion	SPC	2 hr
Nov 5, 6:05 PM CST	Severe Thunderstorm Warning	TSA	25 min
Nov 5, 6:51 PM CST	Areal Flood Advisory	TSA	3 hr
Nov 5, 7:12 PM CST	Severe Thunderstorm Warning	TSA	33 min
Nov 5, 7:17 PM CST	Areal Flood Advisory	TSA	3 hr
Nov 17, 4:35 AM CST	Mesoscale Discussion	SPC	115 min
Nov 17, 6:27 AM CST	Severe Thunderstorm Watch	SPC	6 hr
Nov 17, 8:14 AM CST	Special Weather Statement	TSA	46 min
Nov 17, 8:35 AM CST	Areal Flood Advisory	TSA	115 min
Nov 17, 9:41 AM CST	Flash Flood Warning	TSA	4 hr
Nov 26, 8:20 PM CST	River Flood Warning	TSA	59 hr
Nov 27, 11:18 AM CST	Areal Flood Warning	TSA	48 hr
Dec 13, 1:49 PM CST	River Flood Warning	TSA	30 hr
Dec 23, 2:37 AM CST	Special Weather Statement	TSA	68 min
Dec 23, 3:14 AM CST	Special Weather Statement	TSA	61 min
Dec 25, 1:32 PM CST	River Flood Watch	TSA	9 hr
Dec 25, 10:40 PM CST	River Flood Warning	TSA	10 days
Dec 26, 12:02 PM CST	Mesoscale Discussion	SPC	58 min
Dec 26, 12:35 PM CST	Tornado Watch	SPC	9 hr
Dec 26, 12:40 PM CST	Special Weather Statement	TSA	50 min
Dec 26, 3:51 PM CST	Mesoscale Discussion	SPC	114 min
Dec 26, 7:32 PM CST	Mesoscale Discussion	SPC	88 min
Dec 26, 11:27 PM CST	Mesoscale Discussion	SPC	2 hr
Dec 26, 11:33 PM CST	Areal Flood Warning	TSA	36 hr
Dec 27, 1:45 PM CST	Flash Flood Warning	TSA	6 hr
Dec 28, 1:26 AM CST	Areal Flood Warning	TSA	60 hr
Dec 30, 12:56 PM CST	Areal Flood Warning	TSA	48 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	22
Tornado Warning	2
Severe Thunderstorm Watch	9
Tornado Watch	8
Mesoscale Discussion	38
Special Weather Statement	34
Flooding
Areal Flood Warning	17
Flash Flood Warning	18
River Flood Warning	11
River Flood Watch	1
Areal Flood Advisory	18

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.