Alert archive / North Carolina / Greene County
Weather alerts in Greene County, North Carolina, 2020
105 weather alerts in 2020, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Greene County and its neighbors
Each county as a circle sized by its count in 2020. Tap one for its archive.
- Alerts
- 105
- Warnings
- 21
- Watches
- 16
- Advisories
- 35
- Busiest month
- April16 alerts
- Busiest day
- January 12, 20204 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Greene County, 2020
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 9 | 4 | 56% | 1 | 100% | 31 min |
| Flash flood warnings | 1 | 1 | 0% | 1 | 100% | 217 min |
Each office's whole area, 2020
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Newport/Morehead City, NC: tornado warnings | 27 | 11 | 59% | 20 | 90% | 11 min |
| NWS Newport/Morehead City, NC: severe thunderstorm warnings | 40 | 25 | 38% | 90 | 82% | 24 min |
| NWS Newport/Morehead City, NC: flash flood warnings | 13 | 9 | 31% | 16 | 88% | 103 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 11, 11:25 PM EST | Severe Thunderstorm Watch | SPC | 4 hr |
| Jan 12, 12:59 AM EST | Severe Thunderstorm Warning | MHX | 61 min |
| Jan 12, 1:51 AM EST | Severe Thunderstorm Warning | MHX | 39 min |
| Jan 12, 2:01 AM EST | Severe Thunderstorm Warning | MHX | 44 min |
| Jan 13, 12:46 PM EST | Mesoscale Discussion | SPC | 119 min |
| Jan 13, 3:07 PM EST | Special Weather Statement | MHX | 38 min |
| Jan 25, 3:21 AM EST | Mesoscale Discussion | SPC | 114 min |
| Feb 5, 3:18 PM EST | Wind Advisory | MHX | 50 hr |
| Feb 6, 11:55 AM EST | Mesoscale Discussion | SPC | 65 min |
| Feb 6, 12:41 PM EST | Tornado Watch | SPC | 6 hr |
| Feb 6, 4:23 PM EST | Tornado Watch | SPC | 9 hr |
| Feb 7, 10:32 AM EST | River Flood Warning | MHX | 9 days |
| Feb 13, 12:32 PM EST | Special Weather Statement | MHX | 58 min |
| Feb 13, 1:28 PM EST | Special Weather Statement | MHX | 32 min |
| Feb 19, 3:02 PM EST | Winter Storm Watch | MHX | 13 hr |
| Feb 19, 3:02 PM EST | Winter Weather Advisory | MHX | 43 hr |
| Feb 20, 4:02 AM EST | Winter Storm Warning | MHX | 27 hr |
| Feb 26, 8:52 AM EST | Dense Fog Advisory | MHX | 2 hr |
| Apr 6, 5:21 PM EDT | Special Weather Statement | MHX | 54 min |
| Apr 7, 4:31 AM EDT | Dense Fog Advisory | MHX | 4 hr |
| Apr 8, 6:06 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Apr 8, 7:30 PM EDT | Severe Thunderstorm Warning | MHX | 60 min |
| Apr 10, 10:40 AM EDT | Red Flag Warning | MHX | 7 hr |
| Apr 10, 2:37 PM EDT | Frost Advisory | MHX | 17 hr |
| Apr 12, 4:08 AM EDT | Wind Advisory | MHX | 35 hr |
| Apr 13, 4:40 AM EDT | Mesoscale Discussion | SPC | 95 min |
| Apr 13, 5:01 AM EDT | Tornado Watch | SPC | 7 hr |
| Apr 13, 6:46 AM EDT | Mesoscale Discussion | SPC | 89 min |
| Apr 13, 8:29 AM EDT | Severe Thunderstorm Warning | MHX | 61 min |
| Apr 15, 3:20 AM EDT | Frost Advisory | MHX | 29 hr |
| Apr 16, 3:27 PM EDT | Frost Advisory | MHX | 17 hr |
| Apr 18, 11:01 AM EDT | Special Weather Statement | MHX | 29 min |
| Apr 26, 1:25 AM EDT | Mesoscale Discussion | SPC | 3 hr |
| Apr 30, 8:16 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 5, 3:10 PM EDT | River Flood Warning | MHX | 29 hr |
| May 9, 3:41 AM EDT | Frost Advisory | MHX | 28 hr |
| May 20, 3:20 PM EDT | Flash Flood Watch | MHX | 39 hr |
| May 22, 4:14 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| May 22, 6:40 PM EDT | Mesoscale Discussion | SPC | 95 min |
| May 22, 7:05 PM EDT | Severe Thunderstorm Warning | MHX | 55 min |
| Jun 17, 11:46 AM EDT | River Flood Warning | MHX | 9 days |
| Jul 1, 1:46 PM EDT | Mesoscale Discussion | SPC | 119 min |
| Jul 13, 1:21 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Jul 13, 4:21 PM EDT | Severe Thunderstorm Warning | MHX | 27 min |
| Jul 18, 8:35 PM EDT | Heat Advisory | MHX | 23 hr |
| Jul 19, 2:45 PM EDT | Heat Advisory | MHX | 29 hr |
| Jul 20, 8:03 PM EDT | Heat Advisory | MHX | 24 hr |
| Jul 21, 8:01 PM EDT | Heat Advisory | MHX | 24 hr |
| Jul 23, 3:05 AM EDT | Heat Advisory | MHX | 16 hr |
| Jul 27, 2:43 AM EDT | Heat Advisory | MHX | 17 hr |
| Jul 27, 9:41 PM EDT | Heat Advisory | MHX | 22 hr |
| Jul 31, 3:22 AM EDT | Heat Advisory | MHX | 16 hr |
| Aug 1, 3:11 AM EDT | Heat Advisory | MHX | 15 hr |
| Aug 1, 1:23 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 1, 2:33 PM EDT | Special Weather Statement | MHX | 42 min |
| Aug 2, 3:06 AM EDT | Flash Flood Watch | MHX | 52 hr |
| Aug 2, 11:00 AM EDT | Tropical Storm Watch | MHX | 12 hr |
| Aug 2, 5:00 PM EDT | Tropical Storm Warning | MHX | 42 hr |
| Aug 3, 8:03 PM EDT | Mesoscale Discussion | SPC | 117 min |
| Aug 3, 8:49 PM EDT | Tornado Watch | SPC | 9 hr |
| Aug 4, 12:02 AM EDT | Mesoscale Discussion | SPC | 118 min |
| Aug 7, 1:10 PM EDT | Special Weather Statement | MHX | 35 min |
| Aug 8, 10:21 PM EDT | Areal Flood Advisory | MHX | 3 hr |
| Aug 15, 6:15 PM EDT | Areal Flood Advisory | MHX | 2 hr |
| Aug 21, 5:47 AM EDT | River Flood Warning | MHX | 24 hr |
| Aug 21, 10:03 PM EDT | Areal Flood Advisory | MHX | 117 min |
| Aug 29, 12:08 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Sep 2, 3:01 AM EDT | Heat Advisory | MHX | 16 hr |
| Sep 2, 7:05 PM EDT | Heat Advisory | MHX | 24 hr |
| Sep 8, 2:03 PM EDT | Special Weather Statement | MHX | 27 min |
| Sep 16, 4:06 AM EDT | Flash Flood Watch | MHX | 49 hr |
| Sep 17, 3:06 PM EDT | Tornado Watch | SPC | 8 hr |
| Sep 27, 3:20 AM EDT | Dense Fog Advisory | MHX | 6 hr |
| Sep 29, 2:36 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 29, 8:52 PM EDT | Special Weather Statement | MHX | 53 min |
| Oct 21, 4:31 AM EDT | Dense Fog Advisory | MHX | 5 hr |
| Oct 27, 5:08 AM EDT | Dense Fog Advisory | MHX | 5 hr |
| Oct 28, 3:40 PM EDT | Wind Advisory | MHX | 38 hr |
| Oct 30, 3:01 AM EDT | Special Weather Statement | MHX | 44 min |
| Nov 1, 11:36 AM EST | Mesoscale Discussion | SPC | 114 min |
| Nov 1, 11:56 AM EST | Special Weather Statement | MHX | 64 min |
| Nov 2, 2:03 PM EST | Frost Advisory | MHX | 18 hr |
| Nov 6, 1:26 AM EST | Dense Fog Advisory | MHX | 8 hr |
| Nov 7, 2:26 AM EST | Dense Fog Advisory | MHX | 6 hr |
| Nov 11, 3:40 AM EST | Flash Flood Watch | MHX | 40 hr |
| Nov 11, 8:38 PM EST | River Flood Warning | MHX | 21 days |
| Nov 12, 11:00 AM EST | Flash Flood Warning | MHX | 4 hr |
| Nov 12, 11:36 AM EST | Mesoscale Discussion | SPC | 114 min |
| Nov 12, 4:17 PM EST | Areal Flood Warning | MHX | 3 hr |
| Nov 14, 12:37 AM EST | Dense Fog Advisory | MHX | 4 hr |
| Nov 17, 3:10 AM EST | Freeze Watch | MHX | 24 hr |
| Nov 18, 3:00 AM EST | Freeze Warning | MHX | 29 hr |
| Nov 27, 6:46 AM EST | Dense Fog Advisory | MHX | 2 hr |
| Nov 29, 3:20 AM EST | Wind Advisory | MHX | 40 hr |
| Nov 30, 12:26 PM EST | Mesoscale Discussion | SPC | 3 hr |
| Dec 5, 12:58 AM EST | Special Weather Statement | MHX | 92 min |
| Dec 13, 7:47 PM EST | Dense Fog Advisory | MHX | 10 hr |
| Dec 23, 3:26 AM EST | Wind Advisory | MHX | 48 hr |
| Dec 24, 2:19 PM EST | Tornado Watch | SPC | 9 hr |
| Dec 24, 3:08 PM EST | Mesoscale Discussion | SPC | 2 hr |
| Dec 24, 5:02 PM EST | Severe Thunderstorm Warning | MHX | 58 min |
| Dec 24, 7:13 PM EST | Mesoscale Discussion | SPC | 2 hr |
| Dec 24, 9:38 PM EST | Tornado Watch | SPC | 3 hr |
| Dec 24, 10:22 PM EST | Severe Thunderstorm Warning | MHX | 38 min |
| Dec 25, 6:10 AM EST | River Flood Warning | MHX | 20 days |
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 | 9 |
| Severe Thunderstorm Watch | 2 |
| Tornado Watch | 7 |
| Mesoscale Discussion | 21 |
| Special Weather Statement | 12 |
| Flooding | |
| Areal Flood Warning | 1 |
| Flash Flood Warning | 1 |
| River Flood Warning | 6 |
| Flash Flood Watch | 4 |
| Areal Flood Advisory | 3 |
| Winter | |
| Winter Storm Warning | 1 |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 1 |
| Heat | |
| Heat Advisory | 11 |
| Cold | |
| Freeze Warning | 1 |
| Freeze Watch | 1 |
| Frost Advisory | 5 |
| Wind and dust | |
| Wind Advisory | 5 |
| Fire | |
| Red Flag Warning | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 10 |
| Tropical | |
| Tropical Storm Warning | 1 |
| Tropical Storm Watch | 1 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20192021
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.