Alert archive / North Carolina / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 46, NWS Raleigh, NC
NWS Raleigh, NC issued this severe thunderstorm warning at May 4, 2021, 3:19 PM EDT for Alamance County, Guilford County, North Carolina. It was in force for 40 min. 2 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- May 4, 2021, 3:19 PM EDT (19:19 UTC)
- Expired
- May 4, 2021, 3:59 PM EDT
- In force
- 40 min
- Issued by
- NWS Raleigh, NC
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Alamance County, NC, Guilford County, NC
The radar
The Roanoke radar (KFCX), 111 km from the middle of the area, began a volume at 19:19 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 4, 3:24 PM EDT | HAIL 0.88 | 3 Ne Lake Townsend, NC | |
| May 4, 3:26 PM EDT | HAIL 1 | 1 Wnw Monticello, NC | PERIOD OF HAIL, SOME AS BIG AS QUARTERS, AROUND AND NEAR THE CROOKED TREE GOLF COURSE. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 7.3 hours before the alert went out and 34 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
- 463 J/kg
- Mixed-layer CIN
- -235 J/kg
- Mixed-layer LCL
- 935 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 72 m²/s²
- 0-3 km storm-relative helicity
- 87 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
535
WUUS52 KRAH 041919
SVRRAH
NCC001-081-042015-
/O.NEW.KRAH.SV.W.0046.210504T1919Z-210504T2015Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Raleigh NC
319 PM EDT Tue May 4 2021
The National Weather Service in Raleigh has issued a
* Severe Thunderstorm Warning for...
Northern Alamance County in central North Carolina...
Northeastern Guilford County in central North Carolina...
* Until 415 PM EDT.
* At 318 PM EDT, a severe thunderstorm was located near Monroeton, or
8 miles north of Greensboro, moving east at 30 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Greensboro, Burlington, Mebane, McLeansville, Gibsonville, Haw
River, Haw River State Park, Lake Jeanette Marina, Lake Burlington
and Monticello.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3624 7957 3624 7953 3625 7953 3624 7926
3611 7926 3608 7983 3625 7987
TIME...MOT...LOC 1918Z 263DEG 24KT 3620 7978
HAIL...0.75IN
WIND...60MPH
$$
Leins3 follow-up statements
822
WWUS52 KRAH 041927
SVSRAH
Severe Weather Statement
National Weather Service Raleigh NC
327 PM EDT Tue May 4 2021
NCC001-081-042015-
/O.CON.KRAH.SV.W.0046.000000T0000Z-210504T2015Z/
Alamance NC-Guilford NC-
327 PM EDT Tue May 4 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM EDT
FOR NORTHERN ALAMANCE AND NORTHEASTERN GUILFORD COUNTIES...
At 326 PM EDT, a severe thunderstorm was located near Monroeton, or 9
miles south of Reidsville, moving east at 30 mph.
HAZARD...60 mph wind gusts and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Burlington, Mebane, McLeansville, Gibsonville, Haw River State Park,
Lake Burlington, Monticello, Lake Cammack Park & Marina,
Altamahaw-Ossipee and Glen Raven.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
This storm is producing nickel sized hail. SEEK SHELTER NOW inside a
sturdy structure and stay away from windows.
&&
LAT...LON 3624 7957 3624 7953 3625 7953 3624 7926
3611 7926 3611 7973 3625 7979
TIME...MOT...LOC 1926Z 263DEG 24KT 3621 7971
HAIL...0.88IN
WIND...60MPH
$$
Leins898
WWUS52 KRAH 041938
SVSRAH
Severe Weather Statement
National Weather Service Raleigh NC
338 PM EDT Tue May 4 2021
NCC001-081-042015-
/O.CON.KRAH.SV.W.0046.000000T0000Z-210504T2015Z/
Alamance NC-Guilford NC-
338 PM EDT Tue May 4 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM EDT
FOR NORTHWESTERN ALAMANCE AND NORTHEASTERN GUILFORD COUNTIES...
At 337 PM EDT, a severe thunderstorm was located 8 miles southeast of
Monroeton, or 8 miles southwest of Camp Springs, moving east at 30
mph.
HAZARD...60 mph wind gusts and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Lake Cammack Park & Marina, Lake Burlington, Union Ridge, Altamahaw
and Altamahaw-Ossipee.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
This storm has a history of producing hail up to the size of
nickels. SEEK SHELTER NOW inside a sturdy structure and stay away
from windows.
&&
LAT...LON 3624 7957 3624 7953 3625 7953 3624 7926
3619 7934 3617 7961 3625 7970
TIME...MOT...LOC 1937Z 263DEG 24KT 3622 7961
HAIL...0.88IN
WIND...60MPH
$$
Leins260
WWUS52 KRAH 041959
SVSRAH
Severe Weather Statement
National Weather Service Raleigh NC
359 PM EDT Tue May 4 2021
NCC001-081-042008-
/O.CAN.KRAH.SV.W.0046.000000T0000Z-210504T2015Z/
Alamance NC-Guilford NC-
359 PM EDT Tue May 4 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN ALAMANCE AND
NORTHEASTERN GUILFORD COUNTIES IS CANCELLED...
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled. However gusty winds are
still possible with this thunderstorm.
LAT...LON 3624 7957 3624 7953 3625 7953 3624 7926
3619 7934 3617 7961 3625 7970
TIME...MOT...LOC 1956Z 263DEG 24KT 3624 7943
$$
LeinsThe office that day
Everything else NWS Raleigh, NC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 4, 2:38 PM EDT | Special Weather Statement | RAH | Alamance, Guilford, Randolph | 67 min |
| May 4, 3:02 PM EDT | Special Weather Statement | RAH | Forsyth | 58 min |
| May 4, 3:46 PM EDT | Severe Thunderstorm Warning | RAH | Durham, Granville, Orange, Person | 44 min |
| May 4, 3:57 PM EDT | Special Weather Statement | RAH | Montgomery, Stanly | 63 min |
| May 4, 4:02 PM EDT | Special Weather Statement | RAH | Wayne | 58 min |
| May 4, 4:20 PM EDT | Special Weather Statement | RAH | Person | 55 min |
| May 4, 4:30 PM EDT | Special Weather Statement | RAH | Franklin, Vance | 60 min |
| May 4, 4:44 PM EDT | Special Weather Statement | RAH | Anson, Richmond | 61 min |
| May 4, 4:58 PM EDT | Special Weather Statement | RAH | Chatham, Lee | 62 min |
| May 4, 5:06 PM EDT | Special Weather Statement | RAH | Nash | 54 min |
| May 4, 5:30 PM EDT | Special Weather Statement | RAH | Edgecombe | 30 min |
| May 4, 5:37 PM EDT | Severe Thunderstorm Warning | RAH | Anson, Richmond, Scotland | 53 min |
| May 4, 6:14 PM EDT | Severe Thunderstorm Warning | RAH | Cumberland, Harnett, Hoke, Moore | 61 min |
| May 4, 7:11 PM EDT | Special Weather Statement | RAH | Johnston, Wayne | 64 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.