Alert archive / North Carolina / Severe Thunderstorm Warnings in 2020
Severe Thunderstorm Warning 153, NWS Raleigh, NC
NWS Raleigh, NC issued this severe thunderstorm warning at Sep 25, 2020, 7:51 PM EDT for 5 counties in North Carolina. It was in force for 54 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
- Sep 25, 2020, 7:51 PM EDT (23:51 UTC)
- Expired
- Sep 25, 2020, 8:45 PM EDT
- In force
- 54 min
- Issued by
- NWS Raleigh, NC
- Area
- Storm-based polygon
- Hail
- 1.25 in
- Wind
- 60.0 mph
Counties Chatham County, NC, Durham County, NC, Franklin County, NC, Granville County, NC, Wake County, NC
The radar
The Raleigh/Durham radar (KRAX), 42 km from the middle of the area, began a volume at 23:50 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 nearest sounding before it
Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 11.9 hours before the alert went out and 105 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
- 3 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 477 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 52 m²/s²
- 0-3 km storm-relative helicity
- 144 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Sep 25, 7:35 PM EDT, 16 minutes earlier.
Area forecast discussion, Sep 25, 7:35 PM EDT, 16 minutes before
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</html>Hazardous weather outlook, Sep 25, 3:38 AM EDT, 16 hours 13 minutes before
Hazardous Weather Outlook National Weather Service Raleigh NC 338 AM EDT Fri Sep 25 2020 NCZ007>011-021>028-038>043-073>077-083-084-260745- Person-Granville-Vance-Warren-Halifax-Forsyth-Guilford-Alamance- Orange-Durham-Franklin-Nash-Edgecombe-Davidson-Randolph-Chatham-Wake- Johnston-Wilson-Stanly-Montgomery-Moore-Lee-Harnett-Anson-Richmond- 338 AM EDT Fri Sep 25 2020 This Hazardous Weather Outlook is for central North Carolina. .DAY ONE...Today and tonight. Widespread rain and showers are expected through early this evening. Storm total rainfall of 1 to locally 2 inches will be possible. This may result in minor flooding, especially in urban areas and around small creeks and streams. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. Widespread hazardous weather is not expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. NCZ078-085-086-088-089-260745- Wayne-Scotland-Hoke-Cumberland-Sampson- 338 AM EDT Fri Sep 25 2020 This Hazardous Weather Outlook is for central North Carolina. .DAY ONE...Today and tonight. There is a marginal risk for severe weather this afternoon and early this evening. An isolated thunderstorm may become severe, with the main hazard of a damaging wind gust to near 60 mph. An isolated tornado is also possible. In addition, locally heavy rain is possible today. This may result in minor flooding, mostly in urban and poor drainage areas. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. Widespread hazardous weather is not expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
In the hours before
Special weather statement, Sep 25, 5:15 PM EDT, 2 hours 36 minutes before
Special Weather Statement
National Weather Service Raleigh NC
515 PM EDT Fri Sep 25 2020
NCZ078-088-089-252200-
Sampson NC-Wayne NC-Cumberland NC-
515 PM EDT Fri Sep 25 2020
...A LINE OF STRONG THUNDERSTORMS WILL AFFECT SOUTHEASTERN WAYNE...
CENTRAL SAMPSON AND SOUTHEASTERN CUMBERLAND COUNTIES UNTIL 600 PM
EDT...
At 515 PM EDT, Doppler radar was tracking a line of strong
thunderstorms along a line extending from 7 miles north of Clinton to
Howellsville. Movement was east at 40 mph.
Wind gusts up to 50 mph will be possible with these storms.
Locations impacted include...
Clinton, Mount Olive, Roseboro, Garland, Turkey, Seven Springs,
Cliffs Of The Neuse State Park and Bushy Lake Natural Area.
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.
&&
LAT...LON 3475 7839 3485 7850 3485 7870 3514 7831
3525 7783 3518 7783 3515 7789 3517 7793
3516 7797 3519 7802 3517 7816 3509 7817
3490 7815 3479 7818 3471 7829 3470 7837
TIME...MOT...LOC 2115Z 257DEG 37KT 3511 7832 3469 7889
GreenLocal storm report, Sep 25, 6:53 PM EDT, 58 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH NC
653 PM EDT FRI SEP 25 2020
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0652 PM HAIL 2 NW SOUTHERN PINES 35.20N 79.43W
09/25/2020 E0.70 INCH MOORE NC TRAINED SPOTTER
&&The office that day
Everything else NWS Raleigh, NC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 25, 9:02 AM EDT | Areal Flood Advisory | RAH | Anson, Montgomery, Moore, Richmond, Stanly | 73 min |
| Sep 25, 10:46 AM EDT | Areal Flood Advisory | RAH | Anson, Cumberland, Harnett, Hoke, Lee, Montgomery and 3 more | 59 min |
| Sep 25, 5:15 PM EDT | Special Weather Statement | RAH | Sampson | 45 min |
| Sep 25, 6:32 PM EDT | Severe Thunderstorm Warning | RAH | Cumberland, Harnett, Hoke, Moore | 43 min |
| Sep 25, 6:39 PM EDT | Severe Thunderstorm Warning | RAH | Lee, Moore | 51 min |
| Sep 25, 7:21 PM EDT | Severe Thunderstorm Warning | RAH | Chatham, Durham, Harnett, Lee, Wake | 39 min |
Nearby
Severe Thunderstorm Warnings in North Carolina, 2020Every severe thunderstorm warning in 2020
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.