Alert archive / North Carolina / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 17, NWS Raleigh, NC
NWS Raleigh, NC issued this severe thunderstorm warning at Mar 27, 2021, 3:17 PM EDT for 4 counties in North Carolina. It was in force for 43 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
- Mar 27, 2021, 3:17 PM EDT (19:17 UTC)
- Expired
- Mar 27, 2021, 4:00 PM EDT
- In force
- 43 min
- Issued by
- NWS Raleigh, NC
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Alamance County, NC, Guilford County, NC, Orange County, NC, Randolph County, NC
The radar
The Raleigh/Durham radar (KRAX), 80 km from the middle of the area, began a volume at 19:20 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 |
|---|---|---|---|
| Mar 27, 2:03 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 7.3 hours before the alert went out and 55 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2434 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- 60 m²/s²
- 0-3 km storm-relative helicity
- 145 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
273
WUUS52 KRAH 271917
SVRRAH
NCC001-081-135-151-272000-
/O.NEW.KRAH.SV.W.0017.210327T1917Z-210327T2000Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Raleigh NC
317 PM EDT Sat Mar 27 2021
The National Weather Service in Raleigh has issued a
* Severe Thunderstorm Warning for...
Southern Alamance County in central North Carolina...
Southwestern Orange County in central North Carolina...
Northeastern Randolph County in central North Carolina...
Southeastern Guilford County in central North Carolina...
* Until 400 PM EDT.
* At 317 PM EDT, a severe thunderstorm was located 11 miles south of
Elon, or 12 miles southwest of Burlington, moving east at 40 mph.
This storm has a history of producing quarter size hail.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* Locations impacted include...
Burlington, Graham, Hillsborough, Carrboro, Mebane, Liberty, Haw
River, Swepsonville, Alamance and Efland.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
This storm is producing large hail. SEEK SHELTER NOW inside a sturdy
structure and stay away from windows!
&&
LAT...LON 3614 7911 3586 7909 3588 7925 3585 7924
3584 7969 3603 7963
TIME...MOT...LOC 1917Z 262DEG 34KT 3593 7957
HAIL...1.00IN
WIND...60MPH
$$
101 follow-up statement
820
WWUS52 KRAH 271933
SVSRAH
Severe Weather Statement
National Weather Service Raleigh NC
333 PM EDT Sat Mar 27 2021
NCC081-151-271942-
/O.CAN.KRAH.SV.W.0017.000000T0000Z-210327T2000Z/
Randolph NC-Guilford NC-
333 PM EDT Sat Mar 27 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN RANDOLPH AND
SOUTHEASTERN GUILFORD COUNTIES IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 800 PM EDT for
central North Carolina.
LAT...LON 3614 7911 3586 7909 3588 7925 3586 7925
3585 7924 3584 7954 3605 7954
TIME...MOT...LOC 1932Z 262DEG 34KT 3595 7938
$$
NCC001-135-272000-
/O.CON.KRAH.SV.W.0017.000000T0000Z-210327T2000Z/
Alamance NC-Orange NC-
333 PM EDT Sat Mar 27 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM EDT
FOR SOUTHERN ALAMANCE AND SOUTHWESTERN ORANGE COUNTIES...
At 332 PM EDT, a severe thunderstorm was located 7 miles south of
Graham, moving east at 40 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Burlington, Graham, Hillsborough, Carrboro, Mebane, Haw River,
Swepsonville, Alamance, Efland and Snow Camp.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3614 7911 3586 7909 3588 7925 3586 7925
3585 7924 3584 7954 3605 7954
TIME...MOT...LOC 1932Z 262DEG 34KT 3595 7938
HAIL...1.00IN
WIND...60MPH
$$
10The office that day
Everything else NWS Raleigh, NC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 27, 6:39 AM EDT | Dense Fog Advisory | RAH | Anson, Chatham, Cumberland, Durham, Edgecombe, Franklin and 20 more | 3 hr |
| Mar 27, 1:43 PM EDT | Special Weather Statement | RAH | Forsyth | 62 min |
| Mar 27, 1:58 PM EDT | Severe Thunderstorm Warning | RAH | Davidson, Forsyth | 47 min |
| Mar 27, 2:31 PM EDT | Severe Thunderstorm Warning | RAH | Davidson, Guilford, Randolph | 59 min |
| Mar 27, 3:25 PM EDT | Special Weather Statement | RAH | Davidson, Forsyth, Guilford | 65 min |
| Mar 27, 3:51 PM EDT | Special Weather Statement | RAH | Person | 54 min |
| Mar 27, 3:54 PM EDT | Special Weather Statement | RAH | Montgomery, Moore, Stanly | 66 min |
| Mar 27, 4:00 PM EDT | Special Weather Statement | RAH | Durham, Granville, Orange | 60 min |
| Mar 27, 4:12 PM EDT | Severe Thunderstorm Warning | RAH | Chatham, Montgomery, Moore, Randolph | 48 min |
| Mar 27, 4:19 PM EDT | Tornado Warning | RAH | Lee, Montgomery, Moore | 41 min |
| Mar 27, 4:26 PM EDT | Severe Thunderstorm Warning | RAH | Alamance, Chatham, Davidson, Randolph | 64 min |
| Mar 27, 4:29 PM EDT | Severe Thunderstorm Warning | RAH | Montgomery, Stanly | 46 min |
| Mar 27, 4:42 PM EDT | Severe Thunderstorm Warning | RAH | Chatham, Durham, Franklin, Granville, Wake | 48 min |
| Mar 27, 4:45 PM EDT | Special Weather Statement | RAH | Granville, Vance, Warren | 60 min |
| Mar 27, 4:57 PM EDT | Severe Thunderstorm Warning | RAH | Harnett, Lee, Moore | 48 min |
| Mar 27, 5:07 PM EDT | Severe Thunderstorm Warning | RAH | Anson, Montgomery, Moore, Richmond, Stanly | 38 min |
| Mar 27, 5:13 PM EDT | Tornado Warning | RAH | Johnston, Nash, Wake, Wilson | 47 min |
| Mar 27, 5:42 PM EDT | Severe Thunderstorm Warning | RAH | Cumberland, Harnett, Johnston, Lee, Moore, Sampson and 1 more | 48 min |
| Mar 27, 6:00 PM EDT | Severe Thunderstorm Warning | RAH | Edgecombe, Nash, Wilson | 45 min |
| Mar 27, 6:23 PM EDT | Special Weather Statement | RAH | Anson, Cumberland, Harnett, Hoke, Richmond, Scotland | 37 min |
| Mar 27, 6:24 PM EDT | Severe Thunderstorm Warning | RAH | Johnston, Wayne, Wilson | 51 min |
| Mar 27, 6:36 PM EDT | Tornado Warning | RAH | Johnston, Wayne | 54 min |
| Mar 27, 6:51 PM EDT | Severe Thunderstorm Warning | RAH | Sampson | 54 min |
| Mar 27, 6:57 PM EDT | Special Weather Statement | RAH | Cumberland | 48 min |
| Mar 27, 7:06 PM EDT | Severe Thunderstorm Warning | RAH | Cumberland, Sampson | 69 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.