Alert archive / Arkansas / Benton County

Weather alerts in Benton County, Arkansas, 2009

219 weather alerts in 2009, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Benton County and its neighbors

Each county as a circle sized by its count in 2009. Tap one for its archive.

Alerts: 219
Warnings: 73
Watches: 39
Advisories: 33
Busiest month: May46 alerts
Busiest day: May 1, 200916 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 5 tornado warnings covering Benton County in 2009 had a tornado report inside them.

Benton County, 2009

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	5	0	100%	0
Severe thunderstorm warnings	45	29	36%	19	74%	34 min
Flash flood warnings	5	4	20%	3	67%	306 min

Each office's whole area, 2009

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Tulsa, OK: tornado warnings	39	6	85%	16	44%	21 min
NWS Tulsa, OK: severe thunderstorm warnings	526	231	56%	457	86%	31 min
NWS Tulsa, OK: flash flood warnings	60	38	37%	132	83%	186 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, 3:14 AM CST	Winter Weather Advisory	TSA	11 hr
Jan 14, 3:08 PM CST	Wind Chill Advisory	TSA	21 hr
Jan 22, 4:24 AM CST	Red Flag Warning	TSA	16 hr
Jan 24, 4:03 PM CST	Winter Storm Watch	TSA	37 hr
Jan 25, 3:40 PM CST	Ice Storm Warning	TSA	13 hr
Jan 26, 4:41 AM CST	Ice Storm Warning	TSA	47 hr
Jan 26, 4:41 AM CST	Winter Storm Warning	TSA	40 hr
Jan 26, 10:54 AM CST	Mesoscale Discussion	SPC	4 hr
Jan 26, 6:59 PM CST	Mesoscale Discussion	SPC	5 hr
Jan 27, 12:16 PM CST	Mesoscale Discussion	SPC	6 hr
Jan 29, 11:42 PM CST	Freezing Fog Advisory	TSA	11 hr
Feb 8, 2:29 PM CST	Wind Advisory	TSA	28 hr
Feb 9, 8:01 AM CST	Special Weather Statement	TSA	59 min
Feb 9, 8:46 AM CST	Special Weather Statement	TSA	59 min
Feb 10, 2:42 PM CST	Tornado Watch	SPC	7 hr
Feb 10, 2:46 PM CST	Flood Watch	TSA	13 hr
Feb 10, 9:22 PM CST	Special Weather Statement	TSA	38 min
Feb 10, 9:30 PM CST	Tornado Watch	SPC	7 hr
Feb 10, 9:46 PM CST	Special Weather Statement	TSA	74 min
Feb 11, 6:24 AM CST	Wind Advisory	TSA	7 hr
Feb 12, 4:19 AM CST	Dense Fog Advisory	TSA	6 hr
Feb 17, 9:37 PM CST	Severe Thunderstorm Warning	TSA	68 min
Feb 17, 9:45 PM CST	Mesoscale Discussion	SPC	2 hr
Feb 17, 10:37 PM CST	Severe Thunderstorm Warning	TSA	53 min
Feb 26, 5:39 PM CST	Severe Thunderstorm Warning	TSA	56 min
Feb 26, 5:56 PM CST	Mesoscale Discussion	SPC	94 min
Feb 26, 6:12 PM CST	Severe Thunderstorm Watch	SPC	8 hr
Feb 28, 5:55 PM CST	Winter Weather Advisory	TSA	7 hr
Mar 7, 10:21 AM CST	Wind Advisory	TSA	5 hr
Mar 11, 3:50 PM CDT	Winter Weather Advisory	TSA	24 hr
Mar 23, 5:14 AM CDT	Wind Advisory	TSA	17 hr
Mar 24, 3:22 AM CDT	Mesoscale Discussion	SPC	83 min
Mar 24, 9:38 AM CDT	Mesoscale Discussion	SPC	97 min
Mar 24, 10:00 AM CDT	Severe Thunderstorm Watch	SPC	5 hr
Mar 24, 10:56 AM CDT	Severe Thunderstorm Warning	TSA	64 min
Mar 24, 11:34 AM CDT	Severe Thunderstorm Warning	TSA	56 min
Mar 24, 12:02 PM CDT	Mesoscale Discussion	SPC	88 min
Mar 25, 4:13 PM CDT	Special Weather Statement	TSA	62 min
Mar 25, 4:38 PM CDT	Special Weather Statement	TSA	52 min
Mar 26, 3:49 AM CDT	Winter Storm Watch	TSA	36 hr
Mar 26, 12:54 PM CDT	Mesoscale Discussion	SPC	2 hr
Mar 27, 3:50 PM CDT	Winter Weather Advisory	TSA	27 hr
Mar 28, 5:22 AM CDT	Mesoscale Discussion	SPC	53 min
Mar 28, 5:03 PM CDT	Freeze Warning	TSA	17 hr
Mar 30, 11:46 PM CDT	Special Weather Statement	TSA	74 min
Mar 31, 3:26 PM CDT	Freeze Warning	TSA	13 hr
Apr 1, 12:52 PM CDT	Red Flag Warning	TSA	6 hr
Apr 2, 3:42 PM CDT	Freeze Warning	TSA	17 hr
Apr 3, 3:02 PM CDT	Freeze Watch	TSA	48 hr
Apr 3, 3:02 PM CDT	Freeze Watch	TSA	48 hr
Apr 5, 4:30 AM CDT	Wind Advisory	TSA	15 hr
Apr 5, 3:03 PM CDT	Freeze Warning	TSA	18 hr
Apr 5, 3:03 PM CDT	Freeze Warning	TSA	42 hr
Apr 7, 3:32 PM CDT	Freeze Warning	TSA	13 hr
Apr 9, 1:44 PM CDT	Tornado Watch	SPC	7 hr
Apr 9, 5:39 PM CDT	Mesoscale Discussion	SPC	2 hr
Apr 9, 6:04 PM CDT	Severe Thunderstorm Warning	TSA	56 min
Apr 9, 6:44 PM CDT	Severe Thunderstorm Warning	TSA	76 min
Apr 9, 6:59 PM CDT	Mesoscale Discussion	SPC	91 min
Apr 10, 2:48 PM CDT	Frost Advisory	TSA	18 hr
Apr 12, 9:53 AM CDT	Areal Flood Advisory	TSA	6 hr
Apr 13, 2:40 PM CDT	Frost Advisory	TSA	17 hr
Apr 18, 2:43 PM CDT	Severe Thunderstorm Warning	TSA	47 min
Apr 18, 2:49 PM CDT	Mesoscale Discussion	SPC	86 min
Apr 18, 2:55 PM CDT	Severe Thunderstorm Warning	TSA	65 min
Apr 18, 4:23 PM CDT	Severe Thunderstorm Watch	SPC	8 hr
Apr 18, 8:14 PM CDT	Mesoscale Discussion	SPC	91 min
Apr 19, 12:08 AM CDT	Special Weather Statement	TSA	52 min
Apr 27, 2:50 AM CDT	Special Weather Statement	TSA	55 min
Apr 27, 2:56 AM CDT	Flash Flood Watch	TSA	13 hr
Apr 27, 12:32 PM CDT	Mesoscale Discussion	SPC	88 min
Apr 27, 12:47 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Apr 27, 1:13 PM CDT	Wind Advisory	TSA	3 hr
Apr 27, 3:28 PM CDT	Mesoscale Discussion	SPC	2 hr
Apr 27, 6:03 PM CDT	Mesoscale Discussion	SPC	27 min
Apr 29, 2:49 AM CDT	Flash Flood Watch	TSA	40 hr
May 1, 12:45 AM CDT	Severe Thunderstorm Watch	SPC	6 hr
May 1, 3:00 AM CDT	Mesoscale Discussion	SPC	2 hr
May 1, 3:39 AM CDT	Flash Flood Watch	TSA	54 hr
May 1, 4:27 AM CDT	Severe Thunderstorm Warning	TSA	63 min
May 1, 6:08 AM CDT	Mesoscale Discussion	SPC	67 min
May 1, 2:52 PM CDT	Severe Thunderstorm Warning	TSA	51 min
May 1, 3:14 PM CDT	Severe Thunderstorm Warning	TSA	61 min
May 1, 3:36 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
May 1, 3:59 PM CDT	Areal Flood Warning	TSA	6 hr
May 1, 4:11 PM CDT	Severe Thunderstorm Warning	TSA	64 min
May 1, 4:49 PM CDT	Flash Flood Warning	TSA	6 hr
May 1, 5:07 PM CDT	Severe Thunderstorm Warning	TSA	53 min
May 1, 5:25 PM CDT	Severe Thunderstorm Warning	TSA	68 min
May 1, 5:52 PM CDT	Severe Thunderstorm Warning	TSA	53 min
May 1, 6:03 PM CDT	Tornado Warning	TSA	57 min
May 1, 6:11 PM CDT	Mesoscale Discussion	SPC	64 min
May 1, 7:18 PM CDT	Special Weather Statement	TSA	42 min
May 1, 9:36 PM CDT	Mesoscale Discussion	SPC	84 min
May 3, 4:43 AM CDT	Flash Flood Warning	TSA	3 hr
May 7, 4:04 AM CDT	Flash Flood Watch	TSA	31 hr
May 7, 4:15 AM CDT	Dense Fog Advisory	TSA	8 hr
May 8, 4:31 AM CDT	Mesoscale Discussion	SPC	59 min
May 8, 4:55 AM CDT	Severe Thunderstorm Watch PDS	SPC	7 hr
May 8, 7:17 AM CDT	Mesoscale Discussion	SPC	58 min
May 8, 7:44 AM CDT	Severe Thunderstorm Warning	TSA	61 min
May 8, 9:15 AM CDT	Areal Flood Advisory	TSA	60 min
May 8, 9:58 AM CDT	Severe Thunderstorm Warning	TSA	47 min
May 8, 5:52 PM CDT	Tornado Watch	SPC	11 hr
May 8, 9:46 PM CDT	Special Weather Statement	TSA	44 min
May 8, 10:06 PM CDT	Severe Thunderstorm Warning	TSA	54 min
May 12, 5:11 PM CDT	Special Weather Statement	TSA	64 min
May 13, 10:15 AM CDT	Flash Flood Watch	TSA	21 hr
May 13, 8:22 PM CDT	Mesoscale Discussion	SPC	53 min
May 13, 9:36 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
May 13, 10:25 PM CDT	Special Weather Statement	TSA	35 min
May 13, 11:08 PM CDT	Severe Thunderstorm Warning	TSA	67 min
May 13, 11:20 PM CDT	Severe Thunderstorm Warning	TSA	55 min
May 13, 11:27 PM CDT	Mesoscale Discussion	SPC	93 min
May 13, 11:52 PM CDT	Areal Flood Advisory	TSA	113 min
May 15, 10:48 PM CDT	Severe Thunderstorm Warning	TSA	72 min
May 15, 11:44 PM CDT	Severe Thunderstorm Warning	TSA	76 min
May 15, 11:57 PM CDT	Severe Thunderstorm Warning	TSA	63 min
May 24, 1:21 AM CDT	Dense Fog Advisory	TSA	8 hr
May 24, 6:19 PM CDT	Special Weather Statement	TSA	41 min
May 26, 3:12 AM CDT	Dense Fog Advisory	TSA	6 hr
May 29, 5:12 AM CDT	Dense Fog Advisory	TSA	4 hr
Jun 2, 8:50 PM CDT	Flash Flood Watch	TSA	4 hr
Jun 9, 9:15 PM CDT	Mesoscale Discussion	SPC	60 min
Jun 9, 9:46 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 9, 10:15 PM CDT	Severe Thunderstorm Warning	TSA	60 min
Jun 9, 10:50 PM CDT	Severe Thunderstorm Warning	TSA	55 min
Jun 9, 11:24 PM CDT	Flash Flood Warning	TSA	4 hr
Jun 9, 11:30 PM CDT	Mesoscale Discussion	SPC	60 min
Jun 9, 11:37 PM CDT	Severe Thunderstorm Warning	TSA	36 min
Jun 10, 2:26 AM CDT	Mesoscale Discussion	SPC	64 min
Jun 10, 3:46 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Jun 12, 6:23 AM CDT	Mesoscale Discussion	SPC	67 min
Jun 12, 7:46 AM CDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 12, 10:03 AM CDT	Mesoscale Discussion	SPC	87 min
Jun 12, 11:01 AM CDT	Mesoscale Discussion	SPC	89 min
Jun 12, 11:06 AM CDT	Severe Thunderstorm Warning	TSA	54 min
Jun 12, 11:35 AM CDT	Severe Thunderstorm Watch PDS	SPC	9 hr
Jun 12, 11:36 AM CDT	Severe Thunderstorm Warning	TSA	54 min
Jun 12, 11:41 AM CDT	Tornado Warning	TSA	49 min
Jun 12, 12:22 PM CDT	Severe Thunderstorm Warning	TSA	68 min
Jun 12, 1:30 PM CDT	Mesoscale Discussion	SPC	90 min
Jun 12, 10:08 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 14, 1:12 AM CDT	Severe Thunderstorm Warning	TSA	63 min
Jun 14, 1:30 AM CDT	Severe Thunderstorm Warning	TSA	60 min
Jun 14, 1:50 AM CDT	Severe Thunderstorm Warning	TSA	55 min
Jun 14, 1:51 AM CDT	Severe Thunderstorm Watch	SPC	4 hr
Jun 14, 2:42 AM CDT	Severe Thunderstorm Warning	TSA	63 min
Jun 16, 7:43 AM CDT	Special Weather Statement	TSA	62 min
Jun 24, 1:44 PM CDT	Mesoscale Discussion	SPC	2 hr
Jun 25, 4:20 PM CDT	Special Weather Statement	TSA	25 min
Jun 30, 7:57 AM CDT	Mesoscale Discussion	SPC	93 min
Jun 30, 1:54 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 30, 3:47 PM CDT	Mesoscale Discussion	SPC	58 min
Jul 3, 1:37 AM CDT	Mesoscale Discussion	SPC	2 hr
Jul 11, 4:30 PM CDT	Heat Advisory	TSA	3 days
Jul 13, 3:14 AM CDT	Mesoscale Discussion	SPC	91 min
Jul 13, 3:25 PM CDT	Mesoscale Discussion	SPC	65 min
Jul 15, 9:45 PM CDT	Mesoscale Discussion	SPC	90 min
Jul 16, 1:30 AM CDT	Severe Thunderstorm Warning	TSA	60 min
Jul 16, 3:13 PM CDT	Severe Thunderstorm Watch	SPC	5 hr
Jul 16, 6:56 PM CDT	Mesoscale Discussion	SPC	64 min
Jul 20, 3:44 PM CDT	Special Weather Statement	TSA	46 min
Jul 21, 5:12 AM CDT	Special Weather Statement	TSA	48 min
Jul 27, 3:48 PM CDT	Special Weather Statement	TSA	27 min
Aug 5, 6:21 PM CDT	Severe Thunderstorm Warning	TSA	54 min
Aug 5, 6:28 PM CDT	Areal Flood Advisory	TSA	62 min
Aug 5, 7:09 PM CDT	Severe Thunderstorm Warning	TSA	36 min
Aug 10, 1:24 PM CDT	Mesoscale Discussion	SPC	96 min
Aug 10, 1:56 PM CDT	Special Weather Statement	TSA	49 min
Aug 10, 2:38 PM CDT	Severe Thunderstorm Warning	TSA	52 min
Aug 10, 4:35 PM CDT	Severe Thunderstorm Watch	SPC	5 hr
Aug 10, 5:13 PM CDT	Severe Thunderstorm Warning	TSA	34 min
Aug 10, 5:25 PM CDT	Areal Flood Advisory	TSA	3 hr
Aug 12, 6:33 AM CDT	Dense Fog Advisory	TSA	2 hr
Aug 17, 12:28 PM CDT	Special Weather Statement	TSA	47 min
Aug 17, 1:25 PM CDT	Special Weather Statement	TSA	65 min
Aug 17, 1:44 PM CDT	Mesoscale Discussion	SPC	2 hr
Aug 19, 8:48 PM CDT	Tornado Watch	SPC	7 hr
Aug 20, 1:47 AM CDT	Mesoscale Discussion	SPC	88 min
Aug 20, 3:03 AM CDT	Severe Thunderstorm Warning	TSA	57 min
Aug 20, 3:31 AM CDT	Tornado Warning	TSA	29 min
Aug 20, 4:00 AM CDT	Severe Thunderstorm Warning	TSA	9 min
Sep 6, 3:33 AM CDT	Dense Fog Advisory	TSA	7 hr
Sep 21, 1:26 PM CDT	Mesoscale Discussion	SPC	2 hr
Sep 21, 2:00 PM CDT	Severe Thunderstorm Watch	SPC	8 hr
Sep 21, 4:42 PM CDT	Severe Thunderstorm Warning	TSA	63 min
Sep 21, 5:46 PM CDT	Severe Thunderstorm Warning	TSA	59 min
Sep 21, 6:10 PM CDT	Mesoscale Discussion	SPC	65 min
Sep 21, 6:57 PM CDT	Areal Flood Advisory	TSA	3 hr
Sep 21, 7:01 PM CDT	Severe Thunderstorm Warning	TSA	59 min
Sep 25, 2:38 AM CDT	Dense Fog Advisory	TSA	6 hr
Oct 1, 12:44 PM CDT	Mesoscale Discussion	SPC	91 min
Oct 1, 1:16 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Oct 6, 3:46 PM CDT	Flood Watch	TSA	67 hr
Oct 8, 4:41 PM CDT	Tornado Watch	SPC	7 hr
Oct 8, 5:22 PM CDT	Special Weather Statement	TSA	38 min
Oct 8, 6:39 PM CDT	Flash Flood Warning	TSA	6 hr
Oct 8, 6:51 PM CDT	Special Weather Statement	TSA	39 min
Oct 8, 6:58 PM CDT	Severe Thunderstorm Warning	TSA	62 min
Oct 8, 6:59 PM CDT	Mesoscale Discussion	SPC	61 min
Oct 8, 7:21 PM CDT	Tornado Warning	TSA	39 min
Oct 8, 7:52 PM CDT	Tornado Warning	TSA	38 min
Oct 9, 12:31 AM CDT	Flash Flood Warning	TSA	10 hr
Oct 9, 10:20 AM CDT	Areal Flood Warning	TSA	6 hr
Oct 9, 3:56 PM CDT	Areal Flood Warning	TSA	27 hr
Oct 10, 6:58 PM CDT	Areal Flood Warning	TSA	12 hr
Oct 17, 2:39 AM CDT	Freeze Warning	TSA	31 hr
Oct 23, 4:24 AM CDT	Frost Advisory	TSA	29 hr
Oct 29, 4:47 PM CDT	Special Weather Statement	TSA	43 min
Nov 4, 3:20 PM CST	Frost Advisory	TSA	17 hr
Nov 18, 3:50 PM CST	Freeze Warning	TSA	17 hr
Dec 22, 8:04 PM CST	Flash Flood Watch	TSA	34 hr
Dec 23, 4:04 AM CST	Winter Storm Watch	TSA	24 hr
Dec 23, 10:31 AM CST	Mesoscale Discussion	SPC	89 min
Dec 23, 3:55 PM CST	Winter Storm Warning	TSA	36 hr
Dec 24, 8:18 PM CST	Mesoscale Discussion	SPC	4 hr
Dec 25, 3:32 AM CST	Winter Weather Advisory	TSA	4 hr
Dec 28, 9:01 PM CST	Winter Weather Advisory	TSA	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	5
Severe Thunderstorm Watch	19
Tornado Watch	6
Mesoscale Discussion	49
Special Weather Statement	25
Flooding
Areal Flood Warning	4
Flash Flood Warning	5
Flash Flood Watch	7
Flood Watch	2
Areal Flood Advisory	6
Winter
Ice Storm Warning	2
Winter Storm Warning	2
Winter Storm Watch	3
Winter Weather Advisory	6
Heat
Heat Advisory	1
Cold
Freeze Warning	8
Freeze Watch	2
Frost Advisory	4
Wind Chill Advisory	1
Wind and dust
Wind Advisory	6
Fire
Red Flag Warning	2
Fog and smoke
Dense Fog Advisory	8
Freezing Fog Advisory	1

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2008 2010

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.