Alert archive / North Carolina / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 131, NWS Raleigh, NC
NWS Raleigh, NC issued this severe thunderstorm warning at Oct 25, 2021, 7:42 PM EDT for Alamance County, North Carolina. It was in force for 33 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Oct 25, 2021, 7:42 PM EDT (23:42 UTC)
- Expired
- Oct 25, 2021, 8:15 PM EDT
- In force
- 33 min
- Issued by
- NWS Raleigh, NC
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 0.75 in
- Wind
- 60.0 mph
County Alamance County, NC
The radar
The Raleigh/Durham radar (KRAX), 99 km from the middle of the area, began a volume at 23:41 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 |
|---|---|---|---|
| Oct 25, 6:26 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
The nearest sounding before it
Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 11.7 hours before the alert went out and 49 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
- 98 J/kg
- Mixed-layer CIN
- -215 J/kg
- Mixed-layer LCL
- 837 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 22 m²/s²
- 0-3 km storm-relative helicity
- -45 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
133 WUUS52 KRAH 252342 SVRRAH NCC001-260015- /O.NEW.KRAH.SV.W.0131.211025T2342Z-211026T0015Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Raleigh NC 742 PM EDT Mon Oct 25 2021 The National Weather Service in Raleigh has issued a * Severe Thunderstorm Warning for... Northern Alamance County in central North Carolina... * Until 815 PM EDT. * At 742 PM EDT, a severe thunderstorm was located 7 miles north of Elon, or 7 miles south of Camp Springs, moving east at 40 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * Locations impacted include... Burlington, Gibsonville, Lake Cammack Park & Marina, Altamahaw-Ossipee, Glen Raven, Union Ridge, Altamahaw and Lake Burlington. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3624 7926 3613 7926 3610 7954 3625 7953 TIME...MOT...LOC 2342Z 249DEG 36KT 3620 7950 TORNADO...POSSIBLE HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...<.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ Kren
3 follow-up statements
995 WWUS52 KRAH 252356 SVSRAH Severe Weather Statement National Weather Service Raleigh NC 756 PM EDT Mon Oct 25 2021 NCC001-260015- /O.CON.KRAH.SV.W.0131.000000T0000Z-211026T0015Z/ Alamance NC- 756 PM EDT Mon Oct 25 2021 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 PM EDT FOR NORTHEASTERN ALAMANCE COUNTY... At 756 PM EDT, a severe thunderstorm was located near Baynes, or near Jericho, moving east at 50 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Burlington, Lake Cammack Park & Marina, Lake Burlington and Union Ridge. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3624 7926 3613 7926 3611 7946 3625 7946 TIME...MOT...LOC 2356Z 261DEG 42KT 3621 7932 TORNADO...POSSIBLE HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...<.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ Kren
550 WWUS52 KRAH 260005 SVSRAH Severe Weather Statement National Weather Service Raleigh NC 805 PM EDT Mon Oct 25 2021 NCC001-260015- /O.CON.KRAH.SV.W.0131.000000T0000Z-211026T0015Z/ Alamance NC- 805 PM EDT Mon Oct 25 2021 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 PM EDT FOR NORTHEASTERN ALAMANCE COUNTY... At 805 PM EDT, a severe thunderstorm was located near Prospect Hill, moving east at 40 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. This severe thunderstorm will remain over mainly rural areas of northeastern Alamance County. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3624 7926 3613 7926 3612 7934 3624 7934 TIME...MOT...LOC 0005Z 267DEG 37KT 3619 7924 TORNADO...POSSIBLE HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...<.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ Kren
998
WWUS52 KRAH 260010
SVSRAH
Severe Weather Statement
National Weather Service Raleigh NC
810 PM EDT Mon Oct 25 2021
NCC001-260020-
/O.EXP.KRAH.SV.W.0131.000000T0000Z-211026T0015Z/
Alamance NC-
810 PM EDT Mon Oct 25 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN ALAMANCE COUNTY
WILL EXPIRE AT 815 PM EDT...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire. However gusty
winds and heavy rain are still possible with this thunderstorm.
A Severe Thunderstorm Watch remains in effect until 100 AM EDT for
central North Carolina.
LAT...LON 3624 7926 3613 7926 3612 7934 3624 7934
TIME...MOT...LOC 0010Z 249DEG 36KT 3620 7920
$$
KrenThe office that day
Everything else NWS Raleigh, NC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 25, 8:45 AM EDT | Special Weather Statement | RAH | Moore | 45 min |
| Oct 25, 10:27 AM EDT | Special Weather Statement | RAH | Wake | 48 min |
| Oct 25, 6:35 PM EDT | Special Weather Statement | RAH | Forsyth, Guilford | 55 min |
| Oct 25, 6:57 PM EDT | Severe Thunderstorm Warning | RAH | Forsyth, Guilford | 48 min |
| Oct 25, 7:05 PM EDT | Tornado Warning | RAH | Guilford | 25 min |
| Oct 25, 7:27 PM EDT | Severe Thunderstorm Warning | RAH | Davidson, Forsyth, Guilford, Randolph | 48 min |
Nearby
Severe Thunderstorm Warnings in North Carolina, 2021Every severe thunderstorm warning in 2021
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.