Weather alerts in Ozark County, Missouri, 2010

158 weather alerts in 2010, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Ozark County and its neighbors

Each county as a circle sized by its count in 2010. Tap one for its archive.

Alerts: 158
Warnings: 56
Watches: 37
Advisories: 31
Busiest month: May23 alerts
Busiest day: April 30, 201010 alerts

Over time

By month

Warning verification

How often warnings here had a storm report inside them, and how much warning the reports had.

2 of 3 tornado warnings covering Ozark County in 2010 had a tornado report inside them; 6 of 6 tornado reports fell inside a warning, on average 48 minutes after it went out.

Ozark County, 2010

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	3	2	33%	6	100%	48 min
Severe thunderstorm warnings	20	5	75%	6	17%	9 min
Flash flood warnings	13	9	31%	11	100%	160 min

Each office's whole area, 2010

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Springfield, MO: tornado warnings	73	13	82%	31	68%	27 min
NWS Springfield, MO: severe thunderstorm warnings	292	139	52%	362	74%	24 min
NWS Springfield, MO: flash flood warnings	161	83	48%	214	80%	153 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, 2:59 PM CST	Winter Weather Advisory	SGF	21 hr
Jan 4, 2:59 PM CST	Wind Chill Advisory	SGF	19 hr
Jan 5, 2:23 PM CST	Winter Weather Advisory	SGF	46 hr
Jan 6, 3:43 AM CST	Wind Chill Advisory	SGF	66 hr
Jan 14, 1:37 PM CST	Dense Fog Advisory	SGF	22 hr
Jan 15, 2:42 PM CST	Dense Fog Advisory	SGF	19 hr
Jan 16, 1:45 PM CST	Dense Fog Advisory	SGF	22 hr
Jan 17, 2:10 PM CST	Dense Fog Advisory	SGF	21 hr
Jan 19, 10:11 PM CST	Mesoscale Discussion	SPC	2 hr
Jan 24, 12:50 AM CST	Areal Flood Warning	SGF	11 hr
Jan 24, 12:00 PM CST	Areal Flood Warning	SGF	6 hr
Jan 24, 5:45 PM CST	Areal Flood Warning	SGF	15 hr
Jan 26, 4:10 AM CST	Winter Storm Watch	SGF	47 hr
Jan 28, 3:32 AM CST	Winter Storm Warning	SGF	47 hr
Feb 2, 9:38 PM CST	Freezing Fog Advisory	SGF	14 hr
Feb 4, 3:31 AM CST	Winter Weather Advisory	SGF	44 hr
Feb 6, 3:28 AM CST	Winter Storm Watch	SGF	35 hr
Feb 7, 2:36 PM CST	Winter Weather Advisory	SGF	37 hr
Feb 13, 3:36 AM CST	Winter Weather Advisory	SGF	57 hr
Mar 10, 3:13 PM CST	Mesoscale Discussion	SPC	92 min
Mar 10, 3:42 PM CST	Severe Thunderstorm Watch	SPC	6 hr
Mar 10, 6:36 PM CST	Severe Thunderstorm Warning	SGF	45 min
Mar 10, 7:46 PM CST	Tornado Warning	SGF	16 min
Mar 19, 2:30 PM CDT	Flood Watch	SGF	3 days
Mar 21, 10:54 AM CDT	Areal Flood Warning	SGF	4 hr
Mar 21, 2:48 PM CDT	Areal Flood Warning	SGF	18 hr
Mar 25, 11:13 AM CDT	Areal Flood Warning	SGF	8 hr
Mar 25, 2:53 PM CDT	Flash Flood Warning	SGF	4 hr
Mar 25, 6:56 PM CDT	Areal Flood Warning	SGF	24 hr
Mar 26, 2:41 PM CDT	Flood Watch	SGF	33 hr
Mar 27, 4:33 PM CDT	Severe Thunderstorm Watch	SPC	5 hr
Mar 30, 2:15 PM CDT	Fire Weather Watch	SGF	19 hr
Mar 30, 2:15 PM CDT	Red Flag Warning	SGF	29 hr
Apr 5, 1:56 AM CDT	Mesoscale Discussion	SPC	94 min
Apr 8, 3:35 AM CDT	Frost Advisory	SGF	29 hr
Apr 24, 11:08 AM CDT	Mesoscale Discussion	SPC	67 min
Apr 24, 1:52 PM CDT	Mesoscale Discussion	SPC	53 min
Apr 24, 1:55 PM CDT	Severe Thunderstorm Warning	SGF	50 min
Apr 24, 2:51 PM CDT	Severe Thunderstorm Warning	SGF	54 min
Apr 30, 1:11 PM CDT	Mesoscale Discussion	SPC	2 hr
Apr 30, 1:46 PM CDT	Tornado Watch	SPC	5 hr
Apr 30, 2:50 PM CDT	Flood Watch	SGF	37 hr
Apr 30, 4:36 PM CDT	Severe Thunderstorm Warning	SGF	54 min
Apr 30, 5:08 PM CDT	Tornado Warning	SGF	67 min
Apr 30, 5:53 PM CDT	Mesoscale Discussion	SPC	37 min
Apr 30, 6:08 PM CDT	Tornado Warning	SGF	52 min
Apr 30, 6:24 PM CDT	Tornado Watch	SPC	3 hr
Apr 30, 6:38 PM CDT	Flash Flood Warning	SGF	6 hr
Apr 30, 6:57 PM CDT	Severe Thunderstorm Warning	SGF	33 min
May 13, 7:13 AM CDT	Mesoscale Discussion	SPC	32 min
May 13, 7:38 AM CDT	Severe Thunderstorm Watch	SPC	2 hr
May 13, 7:59 AM CDT	Severe Thunderstorm Warning	SGF	46 min
May 13, 1:28 PM CDT	Mesoscale Discussion	SPC	62 min
May 13, 2:28 PM CDT	Flash Flood Watch	SGF	3 days
May 13, 2:33 PM CDT	Severe Thunderstorm Watch	SPC	5 hr
May 13, 3:52 PM CDT	Severe Thunderstorm Warning	SGF	53 min
May 13, 5:07 PM CDT	Severe Thunderstorm Warning	SGF	26 min
May 15, 9:14 AM CDT	Flash Flood Warning	SGF	6 hr
May 15, 2:59 PM CDT	Areal Flood Warning	SGF	46 hr
May 16, 1:10 AM CDT	Dense Fog Advisory	SGF	8 hr
May 16, 10:00 AM CDT	Flash Flood Warning	SGF	5 hr
May 17, 3:54 AM CDT	Dense Fog Advisory	SGF	3 hr
May 17, 12:53 PM CDT	Areal Flood Advisory	SGF	18 hr
May 18, 2:20 PM CDT	Flash Flood Watch	SGF	57 hr
May 20, 12:32 AM CDT	Areal Flood Warning	SGF	36 hr
May 20, 3:08 PM CDT	Mesoscale Discussion	SPC	2 hr
May 24, 6:16 PM CDT	Severe Thunderstorm Warning	SGF	31 min
May 24, 6:42 PM CDT	Flash Flood Warning	SGF	3 hr
May 25, 11:26 AM CDT	Mesoscale Discussion	SPC	64 min
May 25, 2:55 PM CDT	Severe Thunderstorm Warning	SGF	50 min
May 25, 3:30 PM CDT	Flash Flood Warning	SGF	4 hr
May 25, 6:54 PM CDT	Areal Flood Warning	SGF	6 hr
Jun 2, 12:56 PM CDT	Mesoscale Discussion	SPC	94 min
Jun 2, 1:36 PM CDT	Severe Thunderstorm Watch	SPC	5 hr
Jun 2, 5:14 PM CDT	Mesoscale Discussion	SPC	61 min
Jun 2, 11:03 PM CDT	Mesoscale Discussion	SPC	57 min
Jun 11, 3:07 AM CDT	Flash Flood Watch	SGF	12 hr
Jun 16, 5:20 PM CDT	Mesoscale Discussion	SPC	55 min
Jun 16, 5:37 PM CDT	Severe Thunderstorm Watch	SPC	3 hr
Jun 19, 2:56 PM CDT	Heat Advisory	SGF	4 days
Jun 19, 5:55 PM CDT	Mesoscale Discussion	SPC	95 min
Jun 27, 4:41 PM CDT	Severe Thunderstorm Warning	SGF	49 min
Jun 27, 5:04 PM CDT	Severe Thunderstorm Watch	SPC	4 hr
Jun 27, 7:26 PM CDT	Mesoscale Discussion	SPC	94 min
Jul 6, 6:24 PM CDT	Flash Flood Warning	SGF	6 hr
Jul 7, 3:37 PM CDT	Flash Flood Watch	SGF	39 hr
Jul 11, 10:07 AM CDT	Severe Thunderstorm Watch	SPC	6 hr
Jul 11, 3:19 PM CDT	Mesoscale Discussion	SPC	56 min
Jul 11, 3:37 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Jul 11, 6:04 PM CDT	Mesoscale Discussion	SPC	56 min
Jul 11, 7:07 PM CDT	Flash Flood Warning	SGF	5 hr
Jul 11, 7:42 PM CDT	Severe Thunderstorm Warning	SGF	48 min
Jul 11, 7:49 PM CDT	Mesoscale Discussion	SPC	56 min
Jul 11, 8:15 PM CDT	Severe Thunderstorm Warning	SGF	45 min
Jul 11, 10:09 PM CDT	Flash Flood Warning	SGF	10 hr
Jul 11, 10:38 PM CDT	Severe Thunderstorm Warning	SGF	22 min
Jul 12, 1:32 AM CDT	Flash Flood Warning	SGF	6 hr
Jul 12, 2:52 AM CDT	Flash Flood Watch	SGF	24 hr
Jul 12, 7:54 AM CDT	Areal Flood Warning	SGF	4 hr
Jul 13, 1:50 PM CDT	Heat Advisory	SGF	53 hr
Jul 15, 4:48 PM CDT	Mesoscale Discussion	SPC	87 min
Jul 15, 5:38 PM CDT	Flash Flood Warning	SGF	5 hr
Jul 16, 3:27 PM CDT	Heat Advisory	SGF	8 days
Jul 31, 1:33 PM CDT	Mesoscale Discussion	SPC	27 min
Aug 1, 2:45 PM CDT	Heat Advisory	SGF	48 hr
Aug 3, 4:22 AM CDT	Excessive Heat Warning	SGF	46 hr
Aug 5, 2:36 AM CDT	Heat Advisory	SGF	5 hr
Aug 6, 3:42 PM CDT	Excessive Heat Watch	SGF	24 hr
Aug 7, 3:23 PM CDT	Heat Advisory	SGF	60 hr
Aug 8, 3:28 PM CDT	Excessive Heat Warning	SGF	6 days
Aug 12, 5:06 PM CDT	Severe Thunderstorm Warning	SGF	41 min
Aug 15, 12:54 AM CDT	Severe Thunderstorm Watch	SPC	4 hr
Sep 2, 4:43 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Sep 2, 7:12 PM CDT	Mesoscale Discussion	SPC	2 hr
Sep 2, 8:47 PM CDT	Mesoscale Discussion	SPC	58 min
Sep 2, 9:56 PM CDT	Severe Thunderstorm Warning	SGF	37 min
Sep 8, 4:03 AM CDT	Flash Flood Watch	SGF	35 hr
Sep 9, 9:02 AM CDT	Flash Flood Warning	SGF	6 hr
Sep 9, 8:33 PM CDT	Flash Flood Warning	SGF	6 hr
Sep 9, 11:36 PM CDT	Dense Fog Advisory	SGF	8 hr
Sep 10, 2:58 AM CDT	Areal Flood Warning	SGF	7 hr
Sep 10, 11:54 AM CDT	Flash Flood Watch	SGF	16 hr
Sep 15, 5:37 PM CDT	Severe Thunderstorm Warning	SGF	43 min
Sep 15, 8:39 PM CDT	Severe Thunderstorm Watch	SPC	5 hr
Sep 15, 11:12 PM CDT	Mesoscale Discussion	SPC	63 min
Sep 15, 11:19 PM CDT	Severe Thunderstorm Warning	SGF	71 min
Oct 3, 3:59 AM CDT	Frost Advisory	SGF	29 hr
Oct 4, 3:18 AM CDT	Frost Advisory	SGF	30 hr
Oct 25, 10:03 PM CDT	Tornado Watch	SPC	9 hr
Oct 26, 2:21 AM CDT	Mesoscale Discussion	SPC	114 min
Oct 26, 2:40 AM CDT	Severe Thunderstorm Warning	SGF	65 min
Oct 26, 7:45 PM CDT	Fire Weather Watch	SGF	8 hr
Oct 27, 3:25 AM CDT	Red Flag Warning	SGF	15 hr
Oct 27, 11:06 AM CDT	Freeze Watch	SGF	17 hr
Oct 28, 3:37 AM CDT	Freeze Warning	SGF	29 hr
Nov 4, 2:29 PM CDT	Red Flag Warning	SGF	6 hr
Nov 6, 3:45 PM CDT	Fire Weather Watch	SGF	25 hr
Nov 7, 3:15 PM CST	Red Flag Warning	SGF	27 hr
Nov 20, 2:40 AM CST	Dense Fog Advisory	SGF	7 hr
Nov 22, 3:19 PM CST	Mesoscale Discussion	SPC	86 min
Nov 22, 4:50 PM CST	Tornado Watch	SPC	7 hr
Nov 22, 7:31 PM CST	Mesoscale Discussion	SPC	89 min
Nov 22, 7:59 PM CST	Severe Thunderstorm Warning	SGF	61 min
Nov 24, 2:28 PM CST	Tornado Watch	SPC	6 hr
Nov 24, 6:42 PM CST	Mesoscale Discussion	SPC	2 hr
Nov 24, 8:23 PM CST	Tornado Watch	SPC	8 hr
Nov 24, 11:51 PM CST	Mesoscale Discussion	SPC	114 min
Nov 25, 2:34 AM CST	Mesoscale Discussion	SPC	56 min
Nov 25, 3:55 AM CST	Winter Weather Advisory	SGF	14 hr
Nov 25, 7:50 AM CST	Mesoscale Discussion	SPC	3 hr
Dec 11, 3:49 AM CST	Wind Advisory	SGF	38 hr
Dec 12, 4:24 AM CST	Wind Chill Advisory	SGF	29 hr
Dec 15, 3:38 AM CST	Winter Weather Advisory	SGF	31 hr
Dec 23, 11:33 AM CST	Winter Weather Advisory	SGF	45 hr
Dec 31, 12:44 AM CST	Mesoscale Discussion	SPC	61 min
Dec 31, 1:03 AM CST	Tornado Watch	SPC	7 hr
Dec 31, 5:45 AM CST	Mesoscale Discussion	SPC	2 hr
Dec 31, 7:29 AM CST	Tornado Watch	SPC	8 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	20
Tornado Warning	3
Severe Thunderstorm Watch	12
Tornado Watch	8
Mesoscale Discussion	34
Flooding
Areal Flood Warning	12
Flash Flood Warning	13
Flash Flood Watch	7
Flood Watch	3
Areal Flood Advisory	1
Winter
Winter Storm Warning	1
Winter Storm Watch	2
Winter Weather Advisory	8
Heat
Excessive Heat Warning	2
Excessive Heat Watch	1
Heat Advisory	6
Cold
Freeze Warning	1
Freeze Watch	1
Frost Advisory	3
Wind Chill Advisory	3
Wind and dust
Wind Advisory	1
Fire
Red Flag Warning	4
Fire Weather Watch	3
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 2009 2011

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.