Alert archive / Arkansas / Howard County

Weather alerts in Howard County, Arkansas, 2009

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

Howard County and its neighbors

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

Alerts: 220
Warnings: 59
Watches: 48
Advisories: 49
Busiest month: May52 alerts
Busiest day: May 2, 20099 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 3 tornado warnings covering Howard County in 2009 had a tornado report inside them; 0 of 2 tornado reports fell inside a warning.

Howard County, 2009

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	3	1	67%	2	0%
Severe thunderstorm warnings	31	13	58%	13	85%	19 min
Flash flood warnings	15	14	7%	6	100%	64 min

Each office's whole area, 2009

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Shreveport, LA: tornado warnings	131	51	61%	134	60%	18 min
NWS Shreveport, LA: severe thunderstorm warnings	390	173	56%	463	76%	24 min
NWS Shreveport, LA: flash flood warnings	126	102	19%	356	92%	110 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 2, 3:02 PM CST	Lake Wind Advisory	SHV	27 hr
Jan 5, 4:58 AM CST	Flash Flood Watch	SHV	34 hr
Jan 10, 4:00 AM CST	Lake Wind Advisory	SHV	14 hr
Jan 19, 3:03 AM CST	Lake Wind Advisory	SHV	13 hr
Jan 20, 3:48 AM CST	Lake Wind Advisory	SHV	12 hr
Jan 26, 4:17 AM CST	Winter Storm Watch	SHV	24 hr
Jan 26, 10:20 AM CST	Winter Weather Advisory	SHV	6 hr
Jan 26, 4:06 PM CST	Winter Weather Advisory	SHV	8 hr
Jan 26, 6:59 PM CST	Mesoscale Discussion	SPC	5 hr
Jan 27, 3:59 AM CST	Ice Storm Warning	SHV	25 hr
Jan 27, 12:16 PM CST	Mesoscale Discussion	SPC	6 hr
Jan 27, 8:55 PM CST	Winter Weather Advisory	SHV	10 hr
Feb 6, 4:49 AM CST	Lake Wind Advisory	SHV	13 hr
Feb 8, 9:38 PM CST	Lake Wind Advisory	SHV	20 hr
Feb 10, 8:34 PM CST	Mesoscale Discussion	SPC	86 min
Feb 10, 9:30 PM CST	Tornado Watch	SPC	7 hr
Feb 11, 10:55 AM CST	Lake Wind Advisory	SHV	5 hr
Feb 17, 5:44 PM CST	Mesoscale Discussion	SPC	3 hr
Feb 21, 4:55 AM CST	Lake Wind Advisory	SHV	11 hr
Feb 26, 3:34 AM CST	Lake Wind Advisory	SHV	12 hr
Feb 26, 5:56 PM CST	Mesoscale Discussion	SPC	94 min
Feb 26, 6:12 PM CST	Severe Thunderstorm Watch	SPC	8 hr
Feb 26, 7:42 PM CST	Mesoscale Discussion	SPC	93 min
Feb 26, 9:47 PM CST	Severe Thunderstorm Warning	SHV	43 min
Feb 26, 10:12 PM CST	Severe Thunderstorm Warning	SHV	33 min
Feb 26, 10:36 PM CST	Mesoscale Discussion	SPC	114 min
Feb 26, 10:42 PM CST	Severe Thunderstorm Warning	SHV	33 min
Feb 28, 5:11 AM CST	Lake Wind Advisory	SHV	16 hr
Feb 28, 9:15 PM CST	Lake Wind Advisory	SHV	3 hr
Mar 4, 3:36 PM CST	Lake Wind Advisory	SHV	26 hr
Mar 6, 5:55 AM CST	Lake Wind Advisory	SHV	12 hr
Mar 7, 4:40 AM CST	Lake Wind Advisory	SHV	13 hr
Mar 8, 10:11 AM CDT	Mesoscale Discussion	SPC	2 hr
Mar 22, 9:38 PM CDT	Lake Wind Advisory	SHV	23 hr
Mar 23, 9:53 PM CDT	Lake Wind Advisory	SHV	21 hr
Mar 26, 4:40 AM CDT	Dense Fog Advisory	SHV	5 hr
Mar 26, 9:13 PM CDT	Tornado Warning	SHV	32 min
Mar 26, 9:28 PM CDT	Mesoscale Discussion	SPC	62 min
Mar 26, 9:47 PM CDT	Severe Thunderstorm Warning	SHV	43 min
Mar 27, 12:33 PM CDT	Mesoscale Discussion	SPC	57 min
Mar 27, 12:58 PM CDT	Tornado Watch	SPC	7 hr
Mar 27, 3:34 PM CDT	Mesoscale Discussion	SPC	56 min
Mar 27, 5:53 PM CDT	Mesoscale Discussion	SPC	97 min
Mar 27, 6:35 PM CDT	Tornado Watch	SPC	7 hr
Mar 27, 9:21 PM CDT	Lake Wind Advisory	SHV	22 hr
Mar 27, 10:24 PM CDT	Mesoscale Discussion	SPC	96 min
Mar 28, 4:08 PM CDT	Freeze Warning	SHV	17 hr
Mar 29, 3:28 PM CDT	Lake Wind Advisory	SHV	28 hr
Mar 30, 11:42 PM CDT	Mesoscale Discussion	SPC	2 hr
Mar 31, 3:30 PM CDT	Freeze Warning	SHV	17 hr
Apr 1, 2:54 PM CDT	Lake Wind Advisory	SHV	31 hr
Apr 4, 3:44 AM CDT	Lake Wind Advisory	SHV	15 hr
Apr 5, 3:22 AM CDT	Lake Wind Advisory	SHV	16 hr
Apr 6, 3:49 AM CDT	Freeze Warning	SHV	29 hr
Apr 6, 3:49 AM CDT	Lake Wind Advisory	SHV	18 hr
Apr 8, 3:46 PM CDT	Lake Wind Advisory	SHV	28 hr
Apr 9, 1:44 PM CDT	Tornado Watch	SPC	7 hr
Apr 9, 6:59 PM CDT	Mesoscale Discussion	SPC	91 min
Apr 9, 8:07 PM CDT	Severe Thunderstorm Warning	SHV	38 min
Apr 9, 8:16 PM CDT	Severe Thunderstorm Warning	SHV	44 min
Apr 9, 8:34 PM CDT	Tornado Warning	SHV	41 min
Apr 9, 8:44 PM CDT	Mesoscale Discussion	SPC	61 min
Apr 9, 9:10 PM CDT	Tornado Watch	SPC	4 hr
Apr 12, 12:41 AM CDT	Severe Thunderstorm Warning	SHV	17 min
Apr 12, 7:13 AM CDT	Mesoscale Discussion	SPC	92 min
Apr 12, 9:17 AM CDT	Severe Thunderstorm Warning	SHV	58 min
Apr 13, 2:47 AM CDT	Severe Thunderstorm Warning	SHV	58 min
Apr 13, 4:04 AM CDT	Dense Fog Advisory	SHV	4 hr
Apr 16, 3:35 PM CDT	Flash Flood Watch	SHV	54 hr
Apr 18, 12:59 PM CDT	Areal Flood Advisory	SHV	3 hr
Apr 23, 3:21 AM CDT	Lake Wind Advisory	SHV	15 hr
Apr 24, 3:26 AM CDT	Lake Wind Advisory	SHV	16 hr
Apr 25, 3:15 PM CDT	Lake Wind Advisory	SHV	28 hr
Apr 27, 9:28 AM CDT	Severe Thunderstorm Watch	SPC	12 hr
Apr 27, 2:24 PM CDT	Mesoscale Discussion	SPC	66 min
Apr 27, 2:57 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Apr 27, 7:08 PM CDT	Mesoscale Discussion	SPC	67 min
Apr 27, 8:54 PM CDT	Mesoscale Discussion	SPC	66 min
Apr 29, 9:36 AM CDT	Severe Thunderstorm Watch	SPC	6 hr
Apr 29, 12:57 PM CDT	Flash Flood Watch	SHV	15 hr
Apr 29, 12:58 PM CDT	Mesoscale Discussion	SPC	2 hr
Apr 29, 3:04 PM CDT	Mesoscale Discussion	SPC	56 min
Apr 29, 3:27 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Apr 29, 5:19 PM CDT	Mesoscale Discussion	SPC	116 min
May 1, 9:56 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
May 2, 1:45 AM CDT	Mesoscale Discussion	SPC	90 min
May 2, 5:27 AM CDT	Flash Flood Watch	SHV	34 hr
May 2, 9:23 AM CDT	Mesoscale Discussion	SPC	97 min
May 2, 12:17 PM CDT	Tornado Watch	SPC	7 hr
May 2, 12:28 PM CDT	Severe Thunderstorm Warning	SHV	32 min
May 2, 6:03 PM CDT	Tornado Watch	SPC	6 hr
May 2, 6:10 PM CDT	Severe Thunderstorm Warning	SHV	65 min
May 2, 6:42 PM CDT	Flash Flood Warning	SHV	14 hr
May 2, 9:59 PM CDT	Mesoscale Discussion	SPC	3 hr
May 2, 10:23 PM CDT	Flash Flood Warning	SHV	4 hr
May 2, 11:43 PM CDT	Severe Thunderstorm Watch	SPC	5 hr
May 5, 4:21 AM CDT	Flash Flood Watch	SHV	33 hr
May 5, 1:38 PM CDT	Severe Thunderstorm Watch	SPC	4 hr
May 5, 3:53 PM CDT	Mesoscale Discussion	SPC	97 min
May 5, 10:27 PM CDT	Severe Thunderstorm Watch	SPC	8 hr
May 6, 12:29 AM CDT	Severe Thunderstorm Warning	SHV	31 min
May 6, 12:53 AM CDT	Mesoscale Discussion	SPC	37 min
May 6, 12:54 AM CDT	Tornado Watch	SPC	5 hr
May 6, 3:05 AM CDT	Mesoscale Discussion	SPC	115 min
May 6, 5:29 AM CDT	Severe Thunderstorm Watch	SPC	8 hr
May 6, 6:13 AM CDT	Severe Thunderstorm Warning	SHV	62 min
May 6, 6:54 AM CDT	Flash Flood Warning	SHV	3 hr
May 6, 7:16 AM CDT	Severe Thunderstorm Warning	SHV	44 min
May 8, 3:45 AM CDT	Lake Wind Advisory	SHV	15 hr
May 9, 12:51 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
May 9, 2:05 PM CDT	Severe Thunderstorm Warning	SHV	55 min
May 9, 2:09 PM CDT	Tornado Warning	SHV	66 min
May 9, 4:06 PM CDT	Flash Flood Watch	SHV	3 days
May 10, 12:02 AM CDT	Mesoscale Discussion	SPC	118 min
May 10, 12:58 AM CDT	Severe Thunderstorm Warning	SHV	32 min
May 10, 2:05 AM CDT	Flash Flood Warning	SHV	12 hr
May 10, 2:36 AM CDT	Severe Thunderstorm Warning	SHV	54 min
May 10, 9:58 AM CDT	River Flood Warning	SHV	6 days
May 10, 11:17 AM CDT	Mesoscale Discussion	SPC	118 min
May 10, 2:17 PM CDT	Flash Flood Warning	SHV	4 hr
May 11, 10:52 AM CDT	Flash Flood Warning	SHV	4 hr
May 12, 9:10 AM CDT	Mesoscale Discussion	SPC	65 min
May 12, 11:53 AM CDT	Flash Flood Warning	SHV	3 hr
May 12, 1:19 PM CDT	Flash Flood Warning	SHV	4 hr
May 12, 1:32 PM CDT	Severe Thunderstorm Warning	SHV	35 min
May 12, 1:47 PM CDT	Severe Thunderstorm Warning	SHV	58 min
May 12, 2:20 PM CDT	Mesoscale Discussion	SPC	55 min
May 12, 3:20 PM CDT	Flash Flood Warning	SHV	3 hr
May 13, 4:30 AM CDT	Lake Wind Advisory	SHV	15 hr
May 13, 9:48 PM CDT	Flash Flood Watch	SHV	13 hr
May 13, 11:27 PM CDT	Mesoscale Discussion	SPC	93 min
May 14, 1:11 AM CDT	Severe Thunderstorm Watch	SPC	6 hr
May 14, 3:00 AM CDT	Severe Thunderstorm Warning	SHV	60 min
May 14, 4:17 AM CDT	Flash Flood Warning	SHV	4 hr
May 16, 6:18 AM CDT	Flash Flood Warning	SHV	3 hr
May 27, 12:24 AM CDT	Severe Thunderstorm Warning	SHV	66 min
Jun 3, 6:26 AM CDT	Mesoscale Discussion	SPC	2 hr
Jun 10, 6:17 PM CDT	Mesoscale Discussion	SPC	58 min
Jun 10, 6:37 PM CDT	Severe Thunderstorm Watch	SPC	8 hr
Jun 10, 8:39 PM CDT	Mesoscale Discussion	SPC	66 min
Jun 10, 10:33 PM CDT	Severe Thunderstorm Warning	SHV	49 min
Jun 10, 11:07 PM CDT	Mesoscale Discussion	SPC	83 min
Jun 12, 1:30 PM CDT	Mesoscale Discussion	SPC	90 min
Jun 12, 11:10 PM CDT	Mesoscale Discussion	SPC	65 min
Jun 13, 3:47 AM CDT	Severe Thunderstorm Warning	SHV	43 min
Jun 13, 4:23 AM CDT	Severe Thunderstorm Warning	SHV	37 min
Jun 13, 4:59 AM CDT	Severe Thunderstorm Warning	SHV	46 min
Jun 13, 5:07 PM CDT	Mesoscale Discussion	SPC	53 min
Jun 13, 10:33 PM CDT	Mesoscale Discussion	SPC	57 min
Jun 14, 1:51 AM CDT	Severe Thunderstorm Watch	SPC	4 hr
Jun 14, 2:57 AM CDT	Severe Thunderstorm Warning	SHV	33 min
Jun 14, 5:26 AM CDT	Mesoscale Discussion	SPC	94 min
Jun 24, 3:43 AM CDT	Heat Advisory	SHV	15 hr
Jun 26, 9:58 PM CDT	Heat Advisory	SHV	21 hr
Jun 30, 12:53 PM CDT	Mesoscale Discussion	SPC	97 min
Jun 30, 3:47 PM CDT	Mesoscale Discussion	SPC	58 min
Jun 30, 8:12 PM CDT	Mesoscale Discussion	SPC	63 min
Jul 2, 4:11 PM CDT	Heat Advisory	SHV	53 hr
Jul 9, 5:10 AM CDT	Heat Advisory	SHV	8 days
Jul 13, 3:25 PM CDT	Mesoscale Discussion	SPC	65 min
Jul 16, 2:19 PM CDT	Mesoscale Discussion	SPC	56 min
Jul 16, 3:33 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Jul 16, 4:58 PM CDT	Severe Thunderstorm Warning	SHV	62 min
Jul 16, 6:32 PM CDT	Mesoscale Discussion	SPC	88 min
Jul 20, 2:02 PM CDT	Severe Thunderstorm Warning	SHV	43 min
Jul 21, 7:20 AM CDT	Areal Flood Advisory	SHV	3 hr
Jul 27, 3:36 PM CDT	Flash Flood Watch	SHV	29 hr
Jul 29, 4:32 PM CDT	Flash Flood Watch	SHV	32 hr
Jul 30, 6:40 AM CDT	Mesoscale Discussion	SPC	95 min
Aug 1, 9:06 AM CDT	Flash Flood Warning	SHV	3 hr
Aug 5, 7:31 AM CDT	Severe Thunderstorm Warning	SHV	44 min
Aug 5, 5:34 PM CDT	Mesoscale Discussion	SPC	116 min
Aug 11, 3:29 AM CDT	Areal Flood Advisory	SHV	3 hr
Aug 11, 4:28 AM CDT	Areal Flood Advisory	SHV	107 min
Aug 18, 5:01 PM CDT	Severe Thunderstorm Warning	SHV	44 min
Aug 20, 2:32 PM CDT	Mesoscale Discussion	SPC	88 min
Aug 20, 3:08 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Aug 20, 7:29 PM CDT	Mesoscale Discussion	SPC	91 min
Aug 20, 9:57 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Sep 11, 3:25 PM CDT	Flash Flood Watch	SHV	43 hr
Sep 14, 5:09 AM CDT	Flash Flood Watch	SHV	47 hr
Sep 15, 3:04 PM CDT	Mesoscale Discussion	SPC	2 hr
Sep 16, 4:29 AM CDT	Flash Flood Watch	SHV	59 hr
Sep 21, 4:18 AM CDT	Flash Flood Watch	SHV	25 hr
Oct 1, 5:12 PM CDT	Mesoscale Discussion	SPC	93 min
Oct 1, 6:29 PM CDT	Severe Thunderstorm Watch	SPC	8 hr
Oct 1, 7:27 PM CDT	Severe Thunderstorm Warning	SHV	63 min
Oct 7, 3:47 PM CDT	Flash Flood Watch	SHV	48 hr
Oct 9, 2:38 AM CDT	Mesoscale Discussion	SPC	52 min
Oct 9, 7:44 AM CDT	Flash Flood Warning	SHV	3 hr
Oct 9, 9:47 AM CDT	River Flood Warning	SHV	5 hr
Oct 9, 10:18 AM CDT	Areal Flood Advisory	SHV	3 hr
Oct 12, 10:44 PM CDT	Flash Flood Watch	SHV	29 hr
Oct 13, 10:34 AM CDT	Flash Flood Warning	SHV	6 hr
Oct 13, 11:56 AM CDT	River Flood Warning	SHV	43 hr
Oct 13, 4:37 PM CDT	Flash Flood Warning	SHV	3 hr
Oct 13, 7:31 PM CDT	Areal Flood Advisory	SHV	119 min
Oct 15, 2:15 AM CDT	Mesoscale Discussion	SPC	3 hr
Oct 21, 3:51 PM CDT	Flash Flood Watch	SHV	24 hr
Oct 22, 7:30 AM CDT	Areal Flood Advisory	SHV	4 hr
Oct 25, 3:22 PM CDT	Flash Flood Watch	SHV	36 hr
Oct 25, 11:40 PM CDT	Mesoscale Discussion	SPC	95 min
Oct 28, 4:38 AM CDT	Dense Fog Advisory	SHV	4 hr
Oct 28, 3:37 PM CDT	Flash Flood Watch	SHV	48 hr
Oct 29, 1:14 PM CDT	Tornado Watch	SPC	8 hr
Oct 29, 3:03 PM CDT	Mesoscale Discussion	SPC	117 min
Oct 29, 5:24 PM CDT	Mesoscale Discussion	SPC	66 min
Nov 18, 2:56 PM CST	Freeze Warning	SHV	14 hr
Nov 25, 5:06 AM CST	Freeze Warning	SHV	28 hr
Dec 8, 9:43 AM CST	Mesoscale Discussion	SPC	2 hr
Dec 9, 4:43 AM CST	Lake Wind Advisory	SHV	11 hr
Dec 13, 2:54 PM CST	Dense Fog Advisory	SHV	16 hr
Dec 23, 2:37 AM CST	Mesoscale Discussion	SPC	2 hr
Dec 23, 3:44 AM CST	Flash Flood Watch	SHV	29 hr
Dec 23, 2:20 PM CST	Lake Wind Advisory	SHV	38 hr
Dec 23, 7:50 PM CST	Mesoscale Discussion	SPC	85 min
Dec 23, 8:48 PM CST	Tornado Watch	SPC	9 hr
Dec 23, 11:06 PM CST	Mesoscale Discussion	SPC	114 min
Dec 24, 4:49 AM CST	Winter Storm Warning	SHV	23 hr
Dec 24, 4:49 AM CST	Winter Weather Advisory	SHV	23 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	31
Tornado Warning	3
Severe Thunderstorm Watch	18
Tornado Watch	10
Mesoscale Discussion	64
Flooding
Flash Flood Warning	15
River Flood Warning	3
Flash Flood Watch	19
Areal Flood Advisory	7
Winter
Ice Storm Warning	1
Winter Storm Warning	1
Winter Storm Watch	1
Winter Weather Advisory	4
Heat
Heat Advisory	4
Cold
Freeze Warning	5
Wind and dust
Lake Wind Advisory	30
Fog and smoke
Dense Fog Advisory	4

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.