Alert archive / North Carolina / Catawba County
Weather alerts in Catawba County, North Carolina, 2018
185 weather alerts in 2018, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Catawba County and its neighbors
Each county as a circle sized by its count in 2018. Tap one for its archive.
- Alerts
- 185
- Warnings
- 38
- Watches
- 18
- Advisories
- 54
- Busiest month
- August27 alerts
- Busiest day
- April 15, 20188 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Catawba County, 2018
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 27 | 22 | 19% | 18 | 89% | 27 min |
| Flash flood warnings | 1 | 1 | 0% | 1 | 100% | 130 min |
Each office's whole area, 2018
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Greenville-Spartanburg, SC: tornado warnings | 7 | 1 | 86% | 3 | 67% | 5 min |
| NWS Greenville-Spartanburg, SC: severe thunderstorm warnings | 347 | 244 | 30% | 600 | 87% | 20 min |
| NWS Greenville-Spartanburg, SC: flash flood warnings | 74 | 53 | 28% | 177 | 83% | 159 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, Eastern Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jan 4, 3:29 AM EST | Wind Chill Advisory | GSP | 33 hr |
| Jan 5, 3:57 AM EST | Wind Chill Advisory | GSP | 31 hr |
| Jan 7, 2:51 PM EST | Winter Weather Advisory | GSP | 24 hr |
| Jan 11, 6:37 PM EST | Dense Fog Advisory | GSP | 15 hr |
| Jan 12, 4:26 PM EST | Special Weather Statement | GSP | 34 min |
| Jan 15, 3:32 PM EST | Winter Weather Advisory | GSP | 4 days |
| Jan 16, 3:03 PM EST | Winter Storm Warning | GSP | 27 hr |
| Jan 18, 1:42 PM EST | Winter Weather Advisory | GSP | 22 hr |
| Feb 3, 3:28 AM EST | Winter Weather Advisory | GSP | 33 hr |
| Feb 4, 5:59 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Feb 4, 11:44 PM EST | Dense Fog Advisory | GSP | 9 hr |
| Feb 11, 8:53 AM EST | Areal Flood Advisory | GSP | 3 hr |
| Feb 18, 3:52 AM EST | Dense Fog Advisory | GSP | 5 hr |
| Feb 19, 10:44 PM EST | Dense Fog Advisory | GSP | 13 hr |
| Mar 1, 2:53 PM EST | Wind Advisory | GSP | 29 hr |
| Mar 11, 4:02 AM EDT | Winter Weather Advisory | GSP | 54 hr |
| Mar 13, 3:27 AM EDT | Winter Weather Advisory | GSP | 33 hr |
| Mar 20, 5:32 AM EDT | Dense Fog Advisory | GSP | 4 hr |
| Mar 23, 3:21 PM EDT | Winter Storm Warning | GSP | 37 hr |
| Mar 23, 3:21 PM EDT | Winter Weather Advisory | GSP | 37 hr |
| Apr 4, 5:30 AM EDT | Special Weather Statement | GSP | 45 min |
| Apr 6, 4:29 AM EDT | Freeze Watch | GSP | 24 hr |
| Apr 7, 4:03 AM EDT | Freeze Warning | GSP | 29 hr |
| Apr 15, 3:43 AM EDT | Flash Flood Watch | GSP | 16 hr |
| Apr 15, 11:15 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 15, 12:13 PM EDT | Tornado Watch | SPC | 9 hr |
| Apr 15, 12:47 PM EDT | Severe Thunderstorm Warning | GSP | 28 min |
| Apr 15, 1:13 PM EDT | Severe Thunderstorm Warning | GSP | 32 min |
| Apr 15, 1:50 PM EDT | Special Weather Statement | GSP | 25 min |
| Apr 15, 2:14 PM EDT | Special Weather Statement | GSP | 31 min |
| Apr 15, 3:25 PM EDT | Severe Thunderstorm Warning | GSP | 37 min |
| Apr 15, 8:11 PM EDT | Flash Flood Watch | GSP | 3 hr |
| Apr 15, 8:58 PM EDT | Areal Flood Advisory | GSP | 2 hr |
| Apr 16, 2:35 PM EDT | Frost Advisory | GSP | 18 hr |
| Apr 19, 10:06 PM EDT | Frost Advisory | GSP | 11 hr |
| Apr 24, 11:50 AM EDT | Areal Flood Advisory | GSP | 8 hr |
| Apr 24, 7:38 PM EDT | Areal Flood Advisory | GSP | 12 hr |
| Apr 25, 7:30 AM EDT | Areal Flood Advisory | GSP | 54 hr |
| Apr 27, 3:57 AM EDT | Dense Fog Advisory | GSP | 5 hr |
| May 7, 8:49 PM EDT | Special Weather Statement | GSP | 41 min |
| May 7, 9:32 PM EDT | Special Weather Statement | GSP | 28 min |
| May 10, 3:35 PM EDT | Mesoscale Discussion | SPC | 115 min |
| May 10, 3:55 PM EDT | Severe Thunderstorm Warning | GSP | 50 min |
| May 10, 4:23 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 10, 4:54 PM EDT | Special Weather Statement | GSP | 36 min |
| May 11, 5:49 PM EDT | Special Weather Statement | GSP | 26 min |
| May 16, 5:19 PM EDT | Special Weather Statement | GSP | 56 min |
| May 18, 10:09 AM EDT | Special Weather Statement | GSP | 51 min |
| May 18, 10:37 AM EDT | Areal Flood Advisory | GSP | 3 hr |
| May 18, 11:07 AM EDT | Special Weather Statement | GSP | 53 min |
| May 19, 8:40 AM EDT | Areal Flood Advisory | GSP | 12 hr |
| May 19, 8:25 PM EDT | Areal Flood Advisory | GSP | 18 hr |
| May 20, 3:52 PM EDT | Areal Flood Advisory | GSP | 6 hr |
| May 20, 5:11 PM EDT | Special Weather Statement | GSP | 34 min |
| May 20, 5:42 PM EDT | Special Weather Statement | GSP | 33 min |
| May 20, 6:07 PM EDT | Areal Flood Advisory | GSP | 113 min |
| May 20, 6:13 PM EDT | Special Weather Statement | GSP | 32 min |
| May 26, 5:51 PM EDT | Areal Flood Advisory | GSP | 114 min |
| May 27, 4:44 AM EDT | Flash Flood Watch | GSP | 5 days |
| May 29, 11:15 AM EDT | Areal Flood Advisory | GSP | 3 hr |
| May 29, 4:15 PM EDT | Special Weather Statement | GSP | 45 min |
| May 29, 5:06 PM EDT | Special Weather Statement | GSP | 39 min |
| May 30, 3:10 AM EDT | Areal Flood Advisory | GSP | 24 hr |
| May 31, 4:05 AM EDT | Areal Flood Advisory | GSP | 28 hr |
| May 31, 2:55 PM EDT | Special Weather Statement | GSP | 50 min |
| Jun 1, 11:13 AM EDT | Areal Flood Advisory | GSP | 62 hr |
| Jun 1, 4:13 PM EDT | Severe Thunderstorm Warning | GSP | 47 min |
| Jun 1, 4:44 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 3, 6:43 PM EDT | Severe Thunderstorm Warning | GSP | 47 min |
| Jun 3, 7:14 PM EDT | Severe Thunderstorm Warning | GSP | 46 min |
| Jun 10, 3:23 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 11, 7:41 PM EDT | Special Weather Statement | GSP | 34 min |
| Jun 14, 9:05 PM EDT | Severe Thunderstorm Warning | GSP | 40 min |
| Jun 14, 9:43 PM EDT | Severe Thunderstorm Warning | GSP | 62 min |
| Jun 14, 10:05 PM EDT | Special Weather Statement | GSP | 25 min |
| Jun 14, 10:09 PM EDT | Severe Thunderstorm Warning | GSP | 51 min |
| Jun 14, 10:59 PM EDT | Special Weather Statement | GSP | 31 min |
| Jun 21, 8:43 PM EDT | Special Weather Statement | GSP | 32 min |
| Jun 22, 6:36 AM EDT | Dense Fog Advisory | GSP | 2 hr |
| Jun 22, 3:19 PM EDT | Mesoscale Discussion | SPC | 86 min |
| Jun 25, 12:29 PM EDT | Mesoscale Discussion | SPC | 61 min |
| Jun 25, 1:02 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jun 25, 5:22 PM EDT | Severe Thunderstorm Warning | GSP | 38 min |
| Jun 25, 5:57 PM EDT | Severe Thunderstorm Warning | GSP | 48 min |
| Jun 25, 6:23 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 27, 2:29 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 27, 2:44 PM EDT | Special Weather Statement | GSP | 31 min |
| Jun 27, 3:16 PM EDT | Special Weather Statement | GSP | 29 min |
| Jul 6, 3:26 PM EDT | Special Weather Statement | GSP | 64 min |
| Jul 6, 3:32 PM EDT | Severe Thunderstorm Warning | GSP | 43 min |
| Jul 17, 3:14 PM EDT | Special Weather Statement | GSP | 31 min |
| Jul 17, 3:52 PM EDT | Special Weather Statement | GSP | 23 min |
| Jul 21, 5:39 PM EDT | Severe Thunderstorm Warning | GSP | 51 min |
| Jul 21, 5:54 PM EDT | Severe Thunderstorm Warning | GSP | 51 min |
| Jul 21, 6:38 PM EDT | Severe Thunderstorm Warning | GSP | 52 min |
| Jul 23, 3:03 PM EDT | Flash Flood Watch | GSP | 33 hr |
| Jul 25, 2:55 PM EDT | Special Weather Statement | GSP | 35 min |
| Jul 25, 3:43 PM EDT | Special Weather Statement | GSP | 32 min |
| Jul 26, 1:41 AM EDT | Dense Fog Advisory | GSP | 7 hr |
| Jul 31, 3:58 AM EDT | Flash Flood Watch | GSP | 4 days |
| Aug 2, 12:42 PM EDT | Special Weather Statement | GSP | 48 min |
| Aug 2, 1:25 PM EDT | Special Weather Statement | GSP | 65 min |
| Aug 2, 5:26 PM EDT | Special Weather Statement | GSP | 49 min |
| Aug 2, 6:06 PM EDT | Special Weather Statement | GSP | 39 min |
| Aug 2, 6:36 PM EDT | Special Weather Statement | GSP | 39 min |
| Aug 2, 6:58 PM EDT | Areal Flood Advisory | GSP | 6 hr |
| Aug 2, 7:13 PM EDT | Special Weather Statement | GSP | 47 min |
| Aug 3, 1:37 PM EDT | Areal Flood Advisory | GSP | 113 min |
| Aug 5, 6:46 PM EDT | Special Weather Statement | GSP | 29 min |
| Aug 6, 3:39 PM EDT | Special Weather Statement | GSP | 36 min |
| Aug 8, 3:46 PM EDT | Severe Thunderstorm Warning | GSP | 44 min |
| Aug 8, 4:25 PM EDT | Special Weather Statement | GSP | 35 min |
| Aug 8, 4:42 PM EDT | Severe Thunderstorm Warning | GSP | 48 min |
| Aug 8, 5:06 PM EDT | Severe Thunderstorm Warning | GSP | 39 min |
| Aug 8, 5:48 PM EDT | Severe Thunderstorm Warning | GSP | 57 min |
| Aug 12, 4:27 PM EDT | Special Weather Statement | GSP | 33 min |
| Aug 12, 5:00 PM EDT | Special Weather Statement | GSP | 15 min |
| Aug 18, 2:45 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 19, 5:59 PM EDT | Special Weather Statement | GSP | 31 min |
| Aug 21, 3:12 PM EDT | Special Weather Statement | GSP | 33 min |
| Aug 21, 3:18 PM EDT | Severe Thunderstorm Warning | GSP | 42 min |
| Aug 21, 3:53 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 30, 11:41 PM EDT | Special Weather Statement | GSP | 34 min |
| Aug 31, 12:15 AM EDT | Special Weather Statement | GSP | 30 min |
| Aug 31, 6:25 PM EDT | Special Weather Statement | GSP | 35 min |
| Aug 31, 6:46 PM EDT | Severe Thunderstorm Warning | GSP | 44 min |
| Aug 31, 7:22 PM EDT | Severe Thunderstorm Warning | GSP | 23 min |
| Sep 1, 5:00 PM EDT | Special Weather Statement | GSP | 30 min |
| Sep 1, 7:13 PM EDT | Special Weather Statement | GSP | 32 min |
| Sep 2, 7:11 PM EDT | Severe Thunderstorm Warning | GSP | 25 min |
| Sep 10, 7:13 PM EDT | Special Weather Statement | GSP | 47 min |
| Sep 10, 7:48 PM EDT | Special Weather Statement | GSP | 27 min |
| Sep 13, 3:09 PM EDT | Flash Flood Watch | GSP | 4 days |
| Sep 14, 5:36 PM EDT | Wind Advisory | GSP | 48 hr |
| Sep 15, 5:25 PM EDT | Special Weather Statement | GSP | 95 min |
| Sep 15, 7:48 PM EDT | Special Weather Statement | GSP | 72 min |
| Sep 15, 9:01 PM EDT | Special Weather Statement | GSP | 59 min |
| Sep 15, 10:04 PM EDT | Special Weather Statement | GSP | 71 min |
| Sep 15, 11:19 PM EDT | Special Weather Statement | GSP | 56 min |
| Sep 16, 12:17 AM EDT | Special Weather Statement | GSP | 88 min |
| Sep 16, 1:54 AM EDT | Special Weather Statement | GSP | 81 min |
| Sep 16, 3:49 AM EDT | Special Weather Statement | GSP | 116 min |
| Sep 16, 2:39 PM EDT | Special Weather Statement | GSP | 21 min |
| Sep 16, 5:20 PM EDT | Special Weather Statement | GSP | 55 min |
| Sep 27, 6:06 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Sep 27, 6:40 PM EDT | Severe Thunderstorm Warning | GSP | 50 min |
| Sep 27, 7:51 PM EDT | Severe Thunderstorm Warning | GSP | 54 min |
| Sep 27, 8:45 PM EDT | Severe Thunderstorm Warning | GSP | 45 min |
| Oct 8, 8:19 PM EDT | Special Weather Statement | GSP | 26 min |
| Oct 9, 3:37 PM EDT | Flash Flood Watch | GSP | 52 hr |
| Oct 10, 5:19 AM EDT | Tropical Storm Warning | GSP | 36 hr |
| Oct 11, 10:50 AM EDT | Flash Flood Warning | GSP | 4 hr |
| Oct 11, 3:02 PM EDT | Areal Flood Warning | GSP | 4 hr |
| Oct 11, 10:31 PM EDT | Areal Flood Advisory | GSP | 45 hr |
| Oct 20, 2:48 PM EDT | Freeze Watch | GSP | 13 hr |
| Oct 21, 4:14 AM EDT | Freeze Warning | GSP | 30 hr |
| Nov 3, 2:42 PM EDT | Frost Advisory | GSP | 19 hr |
| Nov 5, 8:48 PM EST | Dense Fog Advisory | GSP | 10 hr |
| Nov 6, 9:49 AM EST | Special Weather Statement | GSP | 56 min |
| Nov 9, 3:38 AM EST | Freeze Watch | GSP | 24 hr |
| Nov 10, 3:34 AM EST | Freeze Warning | GSP | 29 hr |
| Nov 12, 7:56 PM EST | Special Weather Statement | GSP | 2 hr |
| Nov 13, 3:11 PM EST | Flood Watch | GSP | 52 hr |
| Nov 23, 4:22 AM EST | Winter Weather Advisory | GSP | 28 hr |
| Nov 24, 10:08 PM EST | Dense Fog Advisory | GSP | 12 hr |
| Nov 25, 10:04 AM EST | Dense Fog Advisory | GSP | 56 min |
| Dec 6, 4:05 PM EST | Winter Storm Watch | GSP | 24 hr |
| Dec 7, 4:20 AM EST | Winter Storm Warning | GSP | 3 days |
| Dec 8, 10:54 AM EST | Winter Weather Advisory | GSP | 3 days |
| Dec 8, 10:32 PM EST | Mesoscale Discussion | SPC | 5 hr |
| Dec 9, 3:08 AM EST | Mesoscale Discussion | SPC | 5 hr |
| Dec 9, 8:18 AM EST | Mesoscale Discussion | SPC | 5 hr |
| Dec 11, 3:11 PM EST | Winter Weather Advisory | GSP | 21 hr |
| Dec 13, 3:12 PM EST | Flood Watch | GSP | 48 hr |
| Dec 15, 6:36 PM EST | Dense Fog Advisory | GSP | 3 hr |
| Dec 21, 1:30 AM EST | Dense Fog Advisory | GSP | 5 hr |
| Dec 21, 2:04 AM EST | Areal Flood Advisory | GSP | 12 hr |
| Dec 21, 1:59 PM EST | Areal Flood Advisory | GSP | 24 hr |
| Dec 22, 1:56 PM EST | Areal Flood Advisory | GSP | 7 hr |
| Dec 26, 3:01 PM EST | Flood Watch | GSP | 52 hr |
| Dec 28, 5:51 PM EST | Areal Flood Advisory | GSP | 41 hr |
| Dec 28, 9:14 PM EST | Dense Fog Advisory | GSP | 13 hr |
| Dec 28, 9:59 PM EST | Areal Flood Warning | GSP | 12 hr |
| Dec 29, 10:27 AM EST | Areal Flood Warning | GSP | 11 hr |
| Dec 29, 9:43 PM EST | Areal Flood Advisory | GSP | 12 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 | 27 |
| Severe Thunderstorm Watch | 3 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 14 |
| Special Weather Statement | 61 |
| Flooding | |
| Areal Flood Warning | 3 |
| Flash Flood Warning | 1 |
| Flash Flood Watch | 7 |
| Flood Watch | 3 |
| Areal Flood Advisory | 23 |
| Winter | |
| Winter Storm Warning | 3 |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 10 |
| Cold | |
| Freeze Warning | 3 |
| Freeze Watch | 3 |
| Frost Advisory | 3 |
| Wind Chill Advisory | 2 |
| Wind and dust | |
| Wind Advisory | 2 |
| Fog and smoke | |
| Dense Fog Advisory | 14 |
| Tropical | |
| Tropical Storm Warning | 1 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20172019
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.