Alert archive / North Carolina / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 21, NWS Raleigh, NC
NWS Raleigh, NC issued this severe thunderstorm warning at Mar 27, 2021, 4:42 PM EDT for 5 counties in North Carolina. It was in force for 48 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
- Mar 27, 2021, 4:42 PM EDT (20:42 UTC)
- Expired
- Mar 27, 2021, 5:30 PM EDT
- In force
- 48 min
- Issued by
- NWS Raleigh, NC
- Area
- Storm-based polygon
- Hail
- 0.75 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), 25 km from the middle of the area, began a volume at 20:47 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 |
|---|---|---|---|
| Mar 27, 5:02 PM EDT | HAIL 1 | 3 Nnw Raleigh, NC | PUBLIC REPORTS QUARTER SIZE HAIL NORTH OF RALEIGH. |
| Mar 27, 5:05 PM EDT | TSTM WND DMG | 2 Ne Raleigh, NC | BROADCAST MEDIA WRAL REPORTS TREES DOWN NEAR LAKEMONT DRIVE AND NORTHWOOD DRIVE. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
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, 8.7 hours before the alert went out and 132 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.
737
WUUS52 KRAH 272042
SVRRAH
NCC037-063-069-077-183-272130-
/O.NEW.KRAH.SV.W.0021.210327T2042Z-210327T2130Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Raleigh NC
442 PM EDT Sat Mar 27 2021
The National Weather Service in Raleigh has issued a
* Severe Thunderstorm Warning for...
Southeastern Granville County in central North Carolina...
Wake County in central North Carolina...
Southeastern Durham County in central North Carolina...
Northeastern Chatham County in central North Carolina...
Franklin County in central North Carolina...
* Until 530 PM EDT.
* At 441 PM EDT, severe thunderstorms were located along a line
extending from near Creedmoor to 8 miles west of Cary, moving east
at 35 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Raleigh, Durham, Cary, Creedmoor, Louisburg, Wake Forest, Garner,
Zebulon, Franklinton and Bunn.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3610 7808 3582 7826 3571 7847 3558 7863
3573 7907 3619 7861
TIME...MOT...LOC 2041Z 287DEG 31KT 3612 7859 3577 7894
HAIL...<.75IN
WIND...60MPH
$$
CA2 follow-up statements
599
WWUS52 KRAH 272104
SVSRAH
Severe Weather Statement
National Weather Service Raleigh NC
504 PM EDT Sat Mar 27 2021
NCC037-063-077-272113-
/O.CAN.KRAH.SV.W.0021.000000T0000Z-210327T2130Z/
Granville NC-Durham NC-Chatham NC-
504 PM EDT Sat Mar 27 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN GRANVILLE...
SOUTHEASTERN DURHAM AND NORTHEASTERN CHATHAM COUNTIES IS CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 800 PM EDT for
central North Carolina.
LAT...LON 3610 7808 3582 7826 3571 7847 3558 7863
3567 7890 3592 7876 3597 7871 3601 7870
3602 7871 3607 7868 3602 7855 3608 7854
3617 7850
TIME...MOT...LOC 2103Z 281DEG 31KT 3613 7838 3577 7867
$$
NCC069-183-272130-
/O.CON.KRAH.SV.W.0021.000000T0000Z-210327T2130Z/
Wake NC-Franklin NC-
504 PM EDT Sat Mar 27 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM EDT
FOR WAKE AND FRANKLIN COUNTIES...
At 503 PM EDT, severe thunderstorms were located along a line
extending from near Franklinton to near Raleigh, moving east at 40
mph.
HAZARD...Ping pong ball size hail and 60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect wind
damage to roofs, siding, and trees.
Locations impacted include...
Raleigh, Cary, Louisburg, Wake Forest, Garner, Zebulon, Franklinton,
Bunn, RDU International and Apex.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3610 7808 3582 7826 3571 7847 3558 7863
3567 7890 3592 7876 3597 7871 3601 7870
3602 7871 3607 7868 3602 7855 3608 7854
3617 7850
TIME...MOT...LOC 2103Z 281DEG 31KT 3613 7838 3577 7867
HAIL...1.50IN
WIND...60MPH
$$
CA366
WWUS52 KRAH 272125
SVSRAH
Severe Weather Statement
National Weather Service Raleigh NC
525 PM EDT Sat Mar 27 2021
NCC069-183-272130-
/O.CON.KRAH.SV.W.0021.000000T0000Z-210327T2130Z/
Wake NC-Franklin NC-
525 PM EDT Sat Mar 27 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM EDT
FOR NORTHEASTERN WAKE AND SOUTHWESTERN FRANKLIN COUNTIES...
At 524 PM EDT, a severe thunderstorm was located near Zebulon, or 12
miles east of Raleigh, moving southeast at 30 mph.
HAZARD...Ping pong ball size hail and 60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect wind
damage to roofs, siding, and trees.
Locations impacted include...
Raleigh, Wake Forest, Zebulon, Knightdale, Wendell, Rolesville and
Pilot.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3592 7822 3582 7826 3571 7847 3573 7853
3576 7859 3587 7860 3598 7856 3599 7846
TIME...MOT...LOC 2124Z 293DEG 28KT 3584 7843
TORNADO...POSSIBLE
HAIL...1.50IN
WIND...60MPH
$$
CAThe 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, 3:17 PM EDT | Severe Thunderstorm Warning | RAH | Alamance, Guilford, Orange, Randolph | 43 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, 4:45 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.