Alert archive / North Carolina / Special Weather Statements in 2021
Special Weather Statement, NWS Raleigh, NC
NWS Raleigh, NC issued this special weather statement at Jul 12, 2021, 4:03 PM EDT for Johnston County, Wake County, Wayne County, North Carolina. It was in force for 57 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 12, 2021, 4:03 PM EDT (20:03 UTC)
- Expired
- Jul 12, 2021, 5:00 PM EDT
- In force
- 57 min
- Issued by
- NWS Raleigh, NC
Counties Johnston County, NC, Wake County, NC, Wayne County, NC
The radar
The Raleigh/Durham radar (KRAX), 20 km from the middle of the area, began a volume at 20:06 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
Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 8.1 hours before the alert went out and 155 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
- 46 J/kg
- Mixed-layer CIN
- -127 J/kg
- Mixed-layer LCL
- 960 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 4 m²/s²
- 0-3 km storm-relative helicity
- 27 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
945
WWUS82 KRAH 122003
SPSRAH
Special Weather Statement
National Weather Service Raleigh NC
403 PM EDT Mon Jul 12 2021
NCZ041-042-078-122100-
Johnston NC-Wake NC-Wayne NC-
403 PM EDT Mon Jul 12 2021
...AN AREA OF SHOWERS AND STRONG THUNDERSTORMS WILL AFFECT CENTRAL
WAYNE...CENTRAL WAKE AND JOHNSTON COUNTIES UNTIL 500 PM EDT...
At 403 PM EDT, Doppler radar was tracking an area of showers and
strong thunderstorms along a line extending from near Raleigh to 7
miles northeast of Benson to 8 miles north of Mount Olive. Movement
was north at 50 mph.
Wind gusts up to 40 mph will be possible with these storms.
Deadly cloud to ground lightning will also be possible with these
storms.
Locations impacted include...
Raleigh, Goldsboro, Smithfield, Wake Forest, Garner, Clayton, Mount
Olive, Zebulon, Benson and Fremont.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with these storms, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
&&
LAT...LON 3598 7843 3590 7831 3583 7826 3576 7824
3571 7816 3560 7812 3559 7789 3518 7806
3519 7816 3521 7817 3522 7824 3529 7830
3526 7840 3532 7853 3573 7874 3606 7864
TIME...MOT...LOC 2003Z 192DEG 42KT 3579 7861 3544 7844 3532 7813
$$
JJTThe office that day
Everything else NWS Raleigh, NC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 12, 2:57 PM EDT | Special Weather Statement | RAH | Cumberland, Harnett | 63 min |
| Jul 12, 5:07 PM EDT | Special Weather Statement | RAH | Wilson | 23 min |
Nearby
Special Weather Statements in North Carolina, 2021Every special weather statement 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.