Alert archive / North Carolina / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 86, NWS Raleigh, NC
NWS Raleigh, NC issued this severe thunderstorm warning at Jul 17, 2021, 8:10 PM EDT for Davidson County, Forsyth County, North Carolina. It was in force for 50 min. 4 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
- Jul 17, 2021, 8:10 PM EDT (00:10 UTC)
- Expired
- Jul 17, 2021, 9:00 PM EDT
- In force
- 50 min
- Issued by
- NWS Raleigh, NC
- Area
- Storm-based polygon
- Hail
- 0.88 in
- Wind
- 60.0 mph
Counties Davidson County, NC, Forsyth County, NC
The radar
The Roanoke radar (KFCX), 103 km from the middle of the area, began a volume at 00:12 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 |
|---|---|---|---|
| Jul 17, 8:14 PM EDT | TSTM WND DMG | 3 Ne Lewisville, NC | A TREE WAS REPORTED DOWN AT THE INTERSECTION OF OLIVET CHURCH RD AND BIRCHDALE DR. TIME ESTIMATED BY RADAR. |
| Jul 17, 8:32 PM EDT | TSTM WND DMG | 4 Ene Rural Hall, NC | MULTIPLE TREES REPORTED DOWN NEAR THE 8900 BLOCK OF RED BANK RD. TIME ESTIMATED BY RADAR. |
| Jul 17, 8:35 PM EDT | TSTM WND DMG | 2 Nne Walkertown, NC | MULTIPLE TREES DOWN NEAR THE 6000 BLOCK OF SULLIVAN TOWN RD. TIME ESTIMATED BY RADAR. |
| Jul 17, 8:35 PM EDT | TSTM WND DMG | 5 Ne Stanleyville, NC | MULTIPLE TREES DOWN NEAR THE INTERSECTION OF TUTTLE RIDGE RD AND BAUX MOUNTAIN RD. TIME ESTIMATED BY RADAR. |
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 00:00Z, 0.2 hours before the alert went out and 44 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
- 995 J/kg
- Mixed-layer CIN
- -86 J/kg
- Mixed-layer LCL
- 1335 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 81 m²/s²
- 0-3 km storm-relative helicity
- 80 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.6
The text
As transmitted.
936
WUUS52 KRAH 180010
SVRRAH
NCC057-067-180100-
/O.NEW.KRAH.SV.W.0086.210718T0010Z-210718T0100Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Raleigh NC
810 PM EDT Sat Jul 17 2021
The National Weather Service in Raleigh has issued a
* Severe Thunderstorm Warning for...
Forsyth County in central North Carolina...
Northeastern Davidson County in central North Carolina...
* Until 900 PM EDT.
* At 809 PM EDT, a severe thunderstorm was located near Enon, or 7
miles west of Winston-Salem, moving east at 25 mph.
HAZARD...60 mph wind gusts and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Winston-Salem, Thomasville, Kernersville, Clemmons, Bermuda Run,
Lewisville, Walkertown, Rural Hall, Pfafftown and Belews Creek.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3612 8046 3614 8044 3621 8045 3622 8043
3624 8045 3626 8045 3626 8004 3590 8005
3593 8037 3596 8038 3599 8042 3601 8042
3606 8047 3605 8048 3612 8049
TIME...MOT...LOC 0009Z 254DEG 23KT 3612 8039
HAIL...0.88IN
WIND...60MPH
$$
Kren3 follow-up statements
274
WWUS52 KRAH 180028
SVSRAH
Severe Weather Statement
National Weather Service Raleigh NC
828 PM EDT Sat Jul 17 2021
NCC057-067-180100-
/O.CON.KRAH.SV.W.0086.000000T0000Z-210718T0100Z/
Forsyth NC-Davidson NC-
828 PM EDT Sat Jul 17 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 PM EDT
FOR FORSYTH AND NORTHEASTERN DAVIDSON COUNTIES...
At 828 PM EDT, a severe thunderstorm was located near Winston-Salem,
moving east at 25 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Winston-Salem, Thomasville, Kernersville, Clemmons, Bermuda Run,
Lewisville, Walkertown, Rural Hall, Pfafftown and Belews Creek.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3612 8046 3614 8044 3621 8045 3622 8043
3624 8045 3626 8045 3626 8004 3590 8005
3593 8037 3596 8038 3599 8042 3601 8042
3606 8047 3605 8048 3612 8049
TIME...MOT...LOC 0028Z 254DEG 23KT 3615 8024
HAIL...1.00IN
WIND...60MPH
$$
Kren580
WWUS52 KRAH 180043
SVSRAH
Severe Weather Statement
National Weather Service Raleigh NC
843 PM EDT Sat Jul 17 2021
NCC057-180053-
/O.CAN.KRAH.SV.W.0086.000000T0000Z-210718T0100Z/
Davidson NC-
843 PM EDT Sat Jul 17 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN DAVIDSON COUNTY
IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
LAT...LON 3610 8039 3626 8036 3626 8004 3601 8005
3603 8017 3603 8021 3601 8022 3602 8038
3605 8039
TIME...MOT...LOC 0043Z 259DEG 31KT 3617 8011
$$
NCC067-180100-
/O.CON.KRAH.SV.W.0086.000000T0000Z-210718T0100Z/
Forsyth NC-
843 PM EDT Sat Jul 17 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 PM EDT
FOR FORSYTH COUNTY...
At 843 PM EDT, a severe thunderstorm was located near Kernersville,
or 8 miles south of Walnut Cove, moving east at 35 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated. At 841 pm, law enforcement reported a tree
down on Olivette Church Rd.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Winston-Salem, Kernersville, Clemmons, Lewisville, Walkertown, Rural
Hall, Pfafftown, Stanleyville, Sedge Garden and Belews Creek.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3610 8039 3626 8036 3626 8004 3601 8005
3603 8017 3603 8021 3601 8022 3602 8038
3605 8039
TIME...MOT...LOC 0043Z 259DEG 31KT 3617 8011
HAIL...1.00IN
WIND...60MPH
$$
Kren059
WWUS52 KRAH 180051
SVSRAH
Severe Weather Statement
National Weather Service Raleigh NC
851 PM EDT Sat Jul 17 2021
NCC067-180100-
/O.CON.KRAH.SV.W.0086.000000T0000Z-210718T0100Z/
Forsyth NC-
851 PM EDT Sat Jul 17 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 PM EDT
FOR EASTERN FORSYTH COUNTY...
At 851 PM EDT, a severe thunderstorm was located near Kernersville,
or 9 miles southeast of Walnut Cove, moving east at 25 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Winston-Salem, Kernersville, Walkertown, Rural Hall, Pfafftown,
Stanleyville, Sedge Garden, Belews Creek and Belews Lake.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3610 8033 3626 8028 3626 8004 3601 8005
3603 8017 3603 8021 3601 8022 3606 8027
3607 8031
TIME...MOT...LOC 0051Z 254DEG 23KT 3619 8004
HAIL...0.75IN
WIND...60MPH
$$
KrenThe office that day
Everything else NWS Raleigh, NC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 17, 8:01 PM EDT | Special Weather Statement | RAH | Forsyth | 29 min |
| Jul 17, 8:49 PM EDT | Severe Thunderstorm Warning | RAH | Forsyth, Guilford | 23 min |
| Jul 17, 9:04 PM EDT | Areal Flood Advisory | RAH | Forsyth, Guilford | 46 min |
| Jul 17, 9:15 PM EDT | Special Weather Statement | RAH | Davidson | 30 min |
| Jul 17, 9:26 PM EDT | Areal Flood Advisory | RAH | Davidson, Forsyth, Guilford | 77 min |
| Jul 17, 9:40 PM EDT | Special Weather Statement | RAH | Guilford | 35 min |
| Jul 17, 9:55 PM EDT | Special Weather Statement | RAH | Person | 65 min |
| Jul 17, 9:59 PM EDT | Severe Thunderstorm Warning | RAH | Granville, Person | 46 min |
| Jul 17, 10:48 PM EDT | Special Weather Statement | RAH | Granville, Vance, Warren | 42 min |
| Jul 18, 5:46 PM EDT | Special Weather Statement | RAH | Cumberland, Hoke, Sampson, Wayne | 59 min |
| Jul 18, 5:54 PM EDT | Special Weather Statement | RAH | Forsyth, Guilford | 66 min |
| Jul 18, 5:58 PM EDT | Special Weather Statement | RAH | Vance, Warren | 62 min |
| Jul 18, 6:29 PM EDT | Special Weather Statement | RAH | Vance, Warren | 61 min |
| Jul 18, 6:31 PM EDT | Special Weather Statement | RAH | Cumberland, Harnett, Hoke, Johnston, Lee, Montgomery and 4 more | 59 min |
| Jul 18, 6:35 PM EDT | Special Weather Statement | RAH | Durham | 40 min |
| Jul 18, 6:51 PM EDT | Severe Thunderstorm Warning | RAH | Granville, Vance, Warren | 39 min |
| Jul 18, 7:35 PM EDT | Special Weather Statement | RAH | Chatham, Davidson, Lee, Moore, Randolph | 55 min |
| Jul 18, 7:51 PM EDT | Special Weather Statement | RAH | Halifax | 54 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.