Alert archive / North Carolina / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 37, NWS Wilmington, NC
NWS Wilmington, NC issued this severe thunderstorm warning at Jul 31, 2021, 6:55 PM EDT for Brunswick County, Columbus County, North Carolina. It was in force for 35 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
- Jul 31, 2021, 6:55 PM EDT (22:55 UTC)
- Expired
- Jul 31, 2021, 7:30 PM EDT
- In force
- 35 min
- Issued by
- NWS Wilmington, NC
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Brunswick County, NC, Columbus County, NC
The radar
The Wilmington radar (KLTX), 43 km from the middle of the area, began a volume at 22:58 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 nearest sounding before it
Newport, NC (KMHX), launched 12:00Z, 10.9 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
- 3073 J/kg
- Mixed-layer CIN
- -25 J/kg
- Mixed-layer LCL
- 634 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 21 m²/s²
- 0-3 km storm-relative helicity
- 61 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.4
The text
As transmitted.
643
WUUS52 KILM 312255
SVRILM
NCC019-047-312330-
/O.NEW.KILM.SV.W.0037.210731T2255Z-210731T2330Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Wilmington NC
655 PM EDT Sat Jul 31 2021
The National Weather Service in Wilmington has issued a
* Severe Thunderstorm Warning for...
North central Brunswick County in southeastern North Carolina...
Northeastern Columbus County in southeastern North Carolina...
* Until 730 PM EDT.
* At 654 PM EDT, a severe thunderstorm was located over Freeman, or
16 miles northwest of Leland, moving east at 20 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor hail damage to vehicles is possible. Expect wind
damage to trees and power lines.
* Locations impacted include...
Northwest, Batarora, Freeman, Delco, Riegelwood, Bolton and Sandy
Creek.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3420 7814 3422 7845 3437 7838 3437 7832
3438 7824 3437 7823 3438 7823 3437 7821
3435 7820 3436 7816 3437 7815 3436 7814
3437 7814 3436 7811
TIME...MOT...LOC 2254Z 272DEG 21KT 3434 7828
HAIL...1.00IN
WIND...60MPH
$$
SHK1 follow-up statement
039
WWUS52 KILM 312321
SVSILM
Severe Weather Statement
National Weather Service Wilmington NC
721 PM EDT Sat Jul 31 2021
NCC019-047-312330-
/O.EXP.KILM.SV.W.0037.000000T0000Z-210731T2330Z/
Brunswick NC-Columbus NC-
721 PM EDT Sat Jul 31 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL BRUNSWICK AND
NORTHEASTERN COLUMBUS COUNTIES WILL EXPIRE AT 730 PM EDT...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.
LAT...LON 3420 7814 3422 7845 3437 7838 3437 7832
3438 7824 3437 7823 3438 7823 3437 7821
3435 7820 3436 7816 3437 7815 3436 7814
3437 7814 3436 7811
TIME...MOT...LOC 2320Z 272DEG 21KT 3434 7814
$$
SHKThe office that day
Everything else NWS Wilmington, NC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 31, 3:13 AM EDT | Heat Advisory | ILM | Brunswick, Columbus, New Hanover, Pender | 16 hr |
| Jul 31, 3:07 PM EDT | Small Craft Advisory | ILM | 35 hr | |
| Jul 31, 6:34 PM EDT | Special Weather Statement | ILM | Pender | 56 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.