Alert archive / North Carolina / Severe Thunderstorm Warnings in 2019
Severe Thunderstorm Warning 180, NWS Raleigh, NC
NWS Raleigh, NC issued this severe thunderstorm warning at Aug 13, 2019, 3:10 PM EDT for Alamance County, Chatham County, Orange County, North Carolina. It was in force for 29 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Aug 13, 2019, 3:10 PM EDT (19:10 UTC)
- Expired
- Aug 13, 2019, 3:39 PM EDT
- In force
- 29 min
- Issued by
- NWS Raleigh, NC
- Area
- Storm-based polygon
- Hail
- 1.25 in
- Wind
- 60.0 mph
Counties Alamance County, NC, Chatham County, NC, Orange County, NC
The radar
The Raleigh/Durham radar (KRAX), 76 km from the middle of the area, began a volume at 19:10 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Aug 13, 1:23 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 13, 2:58 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 7.2 hours before the alert went out and 60 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 560 J/kg
- Mixed-layer CIN
- -74 J/kg
- Mixed-layer LCL
- 941 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 93 m²/s²
- 0-3 km storm-relative helicity
- 107 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 0.8
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Raleigh, NC wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 13, 2:33 PM EDT, 37 minutes earlier.
Area forecast discussion, Aug 13, 2:33 PM EDT, 37 minutes before
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</html>Hazardous weather outlook, Aug 13, 1:59 PM EDT, 1 hour 11 minutes before
Hazardous Weather Outlook National Weather Service Raleigh NC 159 PM EDT Tue Aug 13 2019 NCZ042-043-077-078-085-086-088-089-141800- Johnston-Wilson-Harnett-Wayne-Scotland-Hoke-Cumberland-Sampson- 159 PM EDT Tue Aug 13 2019 This Hazardous Weather Outlook is for central North Carolina. .DAY ONE...This afternoon and tonight. Scattered thunderstorms are expected this afternoon and evening. A few of these storms could become strong to severe, with damaging wind as the primary threat. Heat index values will peak between 100 and 105 degrees this afternoon. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. In addition, some showers and thunderstorms on Wednesday through Thursday will produce locally heavy rain and may produce some flooding of low lying and poor drainage areas. Heat index values are expected to peak between 102 to 105 degrees on Wednesday, with uncomfortably warm lows Tuesday night, adding to the heat stress. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. NCZ008>011-024>028-040-041-073>076-083-084-141800- Granville-Vance-Warren-Halifax-Orange-Durham-Franklin-Nash-Edgecombe- Chatham-Wake-Stanly-Montgomery-Moore-Lee-Anson-Richmond- 159 PM EDT Tue Aug 13 2019 This Hazardous Weather Outlook is for central North Carolina. .DAY ONE...This afternoon and tonight. There is a slight risk for severe storms this afternoon and evening. Damaging thunderstorm wind gusts are the primary threat. Flash flooding of low lying and poor drainage areas from high rainfall rates is also possible. Heat index values will peak between 100 and 105 degrees this afternoon. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Some showers and thunderstorms on Wednesday and Wednesday night will produce locally heavy rain and may produce some flooding of low lying and poor drainage areas. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. NCZ007-021>023-038-039-141800- Person-Forsyth-Guilford-Alamance-Davidson-Randolph- 159 PM EDT Tue Aug 13 2019 ...SEVERE THUNDERSTORM WATCH 576 IN EFFECT UNTIL 7 PM EDT THIS EVENING... This Hazardous Weather Outlook is for central North Carolina. .DAY ONE...This afternoon and tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Some showers and thunderstorms on Wednesday and Wednesday night will produce locally heavy rain and may produce some flooding of low lying and poor drainage areas. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
In the hours before
Special weather statement, Aug 13, 2:57 PM EDT, 13 minutes before
Special Weather Statement National Weather Service Raleigh NC 257 PM EDT Tue Aug 13 2019 NCZ008>010-132000- Vance NC-Warren NC-Granville NC- 257 PM EDT Tue Aug 13 2019 ...A STRONG THUNDERSTORM WILL AFFECT NORTHERN WARREN...NORTHERN VANCE AND NORTHERN GRANVILLE COUNTIES UNTIL 400 PM EDT... At 257 PM EDT, Doppler radar was tracking a cluster of strong thunderstorms near the Virginia-North Carolina border, near Clarksville, or 15 miles north of Henderson, moving east at 30 mph. Wind gusts up to 50 mph will be possible with this storm. Deadly cloud to ground lightning will also be possible with this storm. Locations impacted include... Warrenton, Norlina, Littleton, Stovall, Middleburg, Macon, Steele Creek Marina & Campground, Kerr Lake, Lake Gaston and Wise. PRECAUTIONARY/PREPAREDNESS ACTIONS... Seek shelter in a nearby building or vehicle. Wind gusts as high as 50 mph are capable of knocking down small or weakened trees and blowing around trash cans, potted plants, lawn furniture and other light outdoor objects. Boaters on the open water and those camping outdoors are especially vulnerable to the dangers of lightning. Seek harbor immediately and find safe shelter in a nearby building or vehicle. && A severe thunderstorm watch remains in effect until 700 PM EDT for central North Carolina. A severe thunderstorm watch also remains in effect until 900 PM EDT for central North Carolina. LAT...LON 3636 7792 3643 7876 3654 7874 3654 7790 TIME...MOT...LOC 1857Z 276DEG 25KT 3655 7848 BLAES
Special weather statement, Aug 13, 3:06 PM EDT, 4 minutes before
Special Weather Statement National Weather Service Raleigh NC 306 PM EDT Tue Aug 13 2019 NCZ023>025-040-132000- Chatham NC-Durham NC-Alamance NC-Orange NC- 306 PM EDT Tue Aug 13 2019 ...A STRONG THUNDERSTORM WILL AFFECT SOUTHEASTERN ALAMANCE...SOUTHERN ORANGE...NORTHEASTERN CHATHAM AND SOUTHWESTERN DURHAM COUNTIES UNTIL 400 PM EDT... At 306 PM EDT, Doppler radar was tracking a strong thunderstorm 9 miles south of Graham, moving east at 20 mph. Half inch hail and wind gusts up to 50 mph will be possible with this storm. Locations impacted include... Durham, Chapel Hill, Hillsborough, Carrboro, Swepsonville, Snow Camp, Parkwood, Sutphin, Jordan Lake and Fearrington. PRECAUTIONARY/PREPAREDNESS ACTIONS... Seek shelter in a nearby building or vehicle. Wind gusts as high as 50 mph are capable of knocking down small or weakened trees and blowing around trash cans, potted plants, lawn furniture and other light outdoor objects. Frequent cloud to ground lightning is occurring with this storm. Lightning can strike 10 miles away from a thunderstorm. Seek a safe shelter inside a building or vehicle. && A severe thunderstorm watch remains in effect until 700 PM EDT for central North Carolina. A severe thunderstorm watch also remains in effect until 900 PM EDT for central North Carolina. LAT...LON 3609 7883 3578 7894 3584 7943 3603 7943 TIME...MOT...LOC 1906Z 269DEG 16KT 3593 7936 BLAES
The office that day
Everything else NWS Raleigh, NC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 13, 2:57 PM EDT | Special Weather Statement | RAH | Warren | 63 min |
| Aug 13, 3:06 PM EDT | Special Weather Statement | RAH | Durham | 54 min |
| Aug 13, 3:12 PM EDT | Special Weather Statement | RAH | Montgomery | 48 min |
| Aug 13, 3:20 PM EDT | Severe Thunderstorm Warning | RAH | Vance, Warren | 40 min |
| Aug 13, 3:22 PM EDT | Special Weather Statement | RAH | Forsyth | 53 min |
| Aug 13, 3:39 PM EDT | Special Weather Statement | RAH | Person | 66 min |
| Aug 13, 3:46 PM EDT | Severe Thunderstorm Warning | RAH | Person | 59 min |
| Aug 13, 3:49 PM EDT | Severe Thunderstorm Warning | RAH | Davidson, Forsyth, Guilford | 56 min |
| Aug 13, 4:01 PM EDT | Severe Thunderstorm Warning | RAH | Halifax, Warren | 59 min |
| Aug 13, 4:04 PM EDT | Severe Thunderstorm Warning | RAH | Anson, Montgomery, Richmond | 56 min |
| Aug 13, 4:14 PM EDT | Special Weather Statement | RAH | Franklin, Granville | 61 min |
| Aug 13, 4:34 PM EDT | Severe Thunderstorm Warning | RAH | Durham, Franklin, Granville, Halifax, Nash, Vance and 1 more | 56 min |
| Aug 13, 4:35 PM EDT | Severe Thunderstorm Warning | RAH | Davidson, Forsyth, Guilford, Randolph | 55 min |
| Aug 13, 4:35 PM EDT | Severe Thunderstorm Warning | RAH | Chatham, Durham, Wake | 40 min |
| Aug 13, 5:05 PM EDT | Special Weather Statement | RAH | Alamance, Orange | 40 min |
| Aug 13, 5:12 PM EDT | Special Weather Statement | RAH | Hoke | 63 min |
| Aug 13, 5:16 PM EDT | Special Weather Statement | RAH | Halifax | 59 min |
| Aug 13, 5:22 PM EDT | Severe Thunderstorm Warning | RAH | Alamance, Chatham, Orange | 38 min |
| Aug 13, 5:26 PM EDT | Severe Thunderstorm Warning | RAH | Chatham, Davidson, Montgomery, Moore, Randolph | 23 min |
| Aug 13, 5:26 PM EDT | Severe Thunderstorm Warning | RAH | Franklin, Nash | 64 min |
| Aug 13, 5:48 PM EDT | Severe Thunderstorm Warning | RAH | Edgecombe, Wilson | 57 min |
| Aug 13, 5:58 PM EDT | Special Weather Statement | RAH | Chatham, Wake | 47 min |
| Aug 13, 6:21 PM EDT | Severe Thunderstorm Warning | RAH | Johnston, Wake, Wayne | 39 min |
| Aug 13, 6:38 PM EDT | Special Weather Statement | RAH | Wayne | 67 min |
| Aug 13, 6:50 PM EDT | Special Weather Statement | RAH | Wayne, Wilson | 40 min |
| Aug 13, 7:03 PM EDT | Severe Thunderstorm Warning | RAH | Johnston, Wayne | 42 min |
Nearby
Severe Thunderstorm Warnings in North Carolina, 2019Every severe thunderstorm warning in 2019
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.