Alert archive / Arkansas / Hempstead County
Weather alerts in Hempstead County, Arkansas, 2013
107 weather alerts in 2013, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Hempstead County and its neighbors
Each county as a circle sized by its count in 2013. Tap one for its archive.
- Alerts
- 107
- Warnings
- 30
- Watches
- 15
- Advisories
- 39
- Busiest month
- January19 alerts
- Busiest day
- February 18, 20139 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 4 tornado warnings covering Hempstead County in 2013 had a tornado report inside them.
Hempstead County, 2013
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 4 | 1 | 75% | 0 | ||
| Severe thunderstorm warnings | 20 | 13 | 35% | 1 | 100% | 20 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2013
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Shreveport, LA: tornado warnings | 47 | 12 | 74% | 31 | 74% | 14 min |
| NWS Shreveport, LA: severe thunderstorm warnings | 225 | 130 | 42% | 370 | 79% | 23 min |
| NWS Shreveport, LA: flash flood warnings | 16 | 7 | 56% | 43 | 40% | 89 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 6, 4:34 AM CST | Dense Fog Advisory | SHV | 6 hr |
| Jan 8, 4:06 PM CST | Flash Flood Watch | SHV | 48 hr |
| Jan 12, 1:25 PM CST | Mesoscale Discussion | SPC | 3 hr |
| Jan 12, 5:20 PM CST | Tornado Watch | SPC | 7 hr |
| Jan 12, 6:18 PM CST | Mesoscale Discussion | SPC | 117 min |
| Jan 12, 9:25 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Jan 12, 9:44 PM CST | Severe Thunderstorm Warning | SHV | 61 min |
| Jan 14, 4:00 PM CST | Winter Weather Advisory | SHV | 24 hr |
| Jan 15, 4:44 PM CST | Winter Weather Advisory | SHV | 17 hr |
| Jan 26, 9:42 PM CST | Dense Fog Advisory | SHV | 11 hr |
| Jan 28, 3:21 AM CST | Lake Wind Advisory | SHV | 43 hr |
| Jan 29, 9:46 AM CST | Mesoscale Discussion | SPC | 119 min |
| Jan 29, 10:59 AM CST | Tornado Watch | SPC | 8 hr |
| Jan 29, 4:58 PM CST | Mesoscale Discussion | SPC | 92 min |
| Jan 29, 5:37 PM CST | Tornado Watch | SPC | 8 hr |
| Jan 29, 7:29 PM CST | Severe Thunderstorm Warning | SHV | 61 min |
| Jan 29, 8:11 PM CST | Mesoscale Discussion | SPC | 94 min |
| Jan 29, 8:19 PM CST | Severe Thunderstorm Warning | SHV | 56 min |
| Jan 30, 1:28 AM CST | Lake Wind Advisory | SHV | 17 hr |
| Feb 6, 4:26 AM CST | Dense Fog Advisory | SHV | 6 hr |
| Feb 10, 4:18 AM CST | Severe Thunderstorm Watch | SPC | 5 hr |
| Feb 10, 5:42 AM CST | Severe Thunderstorm Warning | SHV | 48 min |
| Feb 17, 3:05 PM CST | Lake Wind Advisory | SHV | 27 hr |
| Feb 18, 1:29 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Feb 18, 2:19 PM CST | Severe Thunderstorm Watch | SPC | 7 hr |
| Feb 18, 3:02 PM CST | Severe Thunderstorm Warning | SHV | 58 min |
| Feb 18, 3:15 PM CST | Tornado Warning | SHV | 45 min |
| Feb 18, 3:50 PM CST | Tornado Warning | SHV | 25 min |
| Feb 18, 3:52 PM CST | Mesoscale Discussion | SPC | 83 min |
| Feb 18, 4:06 PM CST | Severe Thunderstorm Warning | SHV | 39 min |
| Feb 18, 4:48 PM CST | Tornado Warning | SHV | 27 min |
| Feb 18, 5:05 PM CST | Severe Thunderstorm Warning | SHV | 40 min |
| Feb 21, 11:33 PM CST | Dense Fog Advisory | SHV | 9 hr |
| Feb 24, 2:31 PM CST | Lake Wind Advisory | SHV | 49 hr |
| Feb 25, 9:25 AM CST | Mesoscale Discussion | SPC | 65 min |
| Feb 25, 12:46 PM CST | Severe Thunderstorm Warning | SHV | 44 min |
| Feb 25, 1:06 PM CST | Severe Thunderstorm Warning | SHV | 39 min |
| Feb 25, 1:45 PM CST | Severe Thunderstorm Warning | SHV | 30 min |
| Mar 3, 10:40 AM CST | Lake Wind Advisory | SHV | 31 hr |
| Mar 4, 9:40 PM CST | Lake Wind Advisory | SHV | 20 hr |
| Mar 14, 2:19 PM CDT | Lake Wind Advisory | SHV | 28 hr |
| Mar 16, 4:00 AM CDT | Lake Wind Advisory | SHV | 12 hr |
| Mar 17, 10:58 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Mar 18, 7:24 AM CDT | Mesoscale Discussion | SPC | 3 hr |
| Mar 23, 3:15 PM CDT | Lake Wind Advisory | SHV | 29 hr |
| Mar 24, 6:54 AM CDT | Freeze Warning | SHV | 25 hr |
| Mar 25, 4:55 AM CDT | Freeze Warning | SHV | 27 hr |
| Mar 25, 4:55 AM CDT | Lake Wind Advisory | SHV | 14 hr |
| Mar 26, 9:28 PM CDT | Freeze Warning | SHV | 11 hr |
| Mar 31, 3:45 AM CDT | Severe Thunderstorm Warning | SHV | 45 min |
| Mar 31, 5:10 AM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Mar 31, 7:36 AM CDT | Mesoscale Discussion | SPC | 114 min |
| Mar 31, 9:15 AM CDT | Severe Thunderstorm Warning | SHV | 60 min |
| Apr 6, 3:44 AM CDT | Lake Wind Advisory | SHV | 14 hr |
| Apr 9, 4:25 AM CDT | Lake Wind Advisory | SHV | 20 hr |
| Apr 10, 1:03 PM CDT | Mesoscale Discussion | SPC | 117 min |
| Apr 10, 1:20 PM CDT | Tornado Watch | SPC | 10 hr |
| Apr 10, 1:59 PM CDT | Severe Thunderstorm Warning | SHV | 61 min |
| Apr 10, 3:01 PM CDT | Mesoscale Discussion | SPC | 119 min |
| Apr 16, 10:14 PM CDT | Lake Wind Advisory | SHV | 45 hr |
| May 2, 3:55 AM CDT | Lake Wind Advisory | SHV | 39 hr |
| May 3, 9:37 PM CDT | Lake Wind Advisory | SHV | 21 hr |
| May 19, 3:56 PM CDT | Lake Wind Advisory | SHV | 27 hr |
| May 21, 1:36 PM CDT | Tornado Warning | SHV | 24 min |
| May 21, 1:50 PM CDT | Tornado Watch | SPC | 8 hr |
| May 21, 3:18 PM CDT | Mesoscale Discussion | SPC | 87 min |
| May 21, 5:10 PM CDT | Severe Thunderstorm Warning | SHV | 65 min |
| May 21, 5:51 PM CDT | Severe Thunderstorm Warning | SHV | 54 min |
| May 21, 5:54 PM CDT | Mesoscale Discussion | SPC | 66 min |
| May 21, 6:23 PM CDT | Severe Thunderstorm Warning | SHV | 67 min |
| May 30, 5:22 AM CDT | Lake Wind Advisory | SHV | 14 hr |
| May 30, 5:23 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 1, 7:28 PM CDT | Areal Flood Advisory | SHV | 2 hr |
| Jul 24, 1:28 AM CDT | Areal Flood Advisory | SHV | 2 hr |
| Jul 26, 10:47 AM CDT | Flash Flood Watch | SHV | 11 hr |
| Jul 26, 3:37 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 26, 8:30 PM CDT | Severe Thunderstorm Warning | SHV | 45 min |
| Jul 26, 8:47 PM CDT | Severe Thunderstorm Warning | SHV | 43 min |
| Jul 26, 9:16 PM CDT | Severe Thunderstorm Warning | SHV | 44 min |
| Jul 26, 9:20 PM CDT | Mesoscale Discussion | SPC | 115 min |
| Aug 1, 10:18 AM CDT | Heat Advisory | SHV | 34 hr |
| Aug 5, 6:45 AM CDT | Heat Advisory | SHV | 12 hr |
| Aug 5, 7:49 PM CDT | Heat Advisory | SHV | 3 days |
| Aug 10, 8:09 PM CDT | Severe Thunderstorm Warning | SHV | 36 min |
| Aug 12, 4:00 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 13, 1:04 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Oct 15, 6:04 AM CDT | Flash Flood Watch | SHV | 28 hr |
| Oct 29, 3:51 PM CDT | Flash Flood Watch | SHV | 48 hr |
| Oct 31, 4:45 AM CDT | Lake Wind Advisory | SHV | 13 hr |
| Nov 11, 3:43 PM CST | Freeze Warning | SHV | 41 hr |
| Nov 11, 9:02 PM CST | Lake Wind Advisory | SHV | 21 hr |
| Nov 16, 5:15 AM CST | Lake Wind Advisory | SHV | 9 hr |
| Nov 23, 6:15 AM CST | Winter Storm Watch | SHV | 24 hr |
| Nov 24, 6:07 AM CST | Winter Storm Warning | SHV | 30 hr |
| Nov 24, 6:07 AM CST | Winter Weather Advisory | SHV | 30 hr |
| Nov 25, 6:10 AM CST | Mesoscale Discussion | SPC | 4 hr |
| Dec 2, 4:00 AM CST | Dense Fog Advisory | SHV | 5 hr |
| Dec 2, 10:06 PM CST | Dense Fog Advisory | SHV | 12 hr |
| Dec 4, 3:13 PM CST | Ice Storm Warning | SHV | 38 hr |
| Dec 6, 5:04 AM CST | Winter Weather Advisory | SHV | 11 hr |
| Dec 7, 4:09 PM CST | Winter Weather Advisory | SHV | 14 hr |
| Dec 9, 4:09 PM CST | Winter Weather Advisory | SHV | 8 hr |
| Dec 19, 3:06 PM CST | Flash Flood Watch | SHV | 48 hr |
| Dec 20, 3:30 PM CST | Lake Wind Advisory | SHV | 25 hr |
| Dec 20, 6:44 PM CST | Mesoscale Discussion | SPC | 91 min |
| Dec 21, 2:31 AM CST | Mesoscale Discussion | SPC | 2 hr |
| Dec 31, 9:13 AM CST | Freezing Fog Advisory | SHV | 98 min |
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 | 4 |
| Severe Thunderstorm Watch | 4 |
| Tornado Watch | 5 |
| Mesoscale Discussion | 23 |
| Flooding | |
| Flash Flood Watch | 5 |
| Areal Flood Advisory | 2 |
| Winter | |
| Ice Storm Warning | 1 |
| Winter Storm Warning | 1 |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 6 |
| Heat | |
| Heat Advisory | 3 |
| Cold | |
| Freeze Warning | 4 |
| Wind and dust | |
| Lake Wind Advisory | 21 |
| Fog and smoke | |
| Dense Fog Advisory | 6 |
| Freezing Fog Advisory | 1 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20122014
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.