Alert archive / North Carolina / Tornado Watches in 2018
Tornado Watch 375
The Storm Prediction Center issued this tornado watch at Sep 14, 2018, 11:03 PM EDT for 18 counties in North Carolina. It was in force for 8 hr.
The area
The outline as issued.
The facts
- Issued
- Sep 14, 2018, 11:03 PM EDT (03:03 UTC)
- Expired
- Sep 15, 2018, 7:00 AM EDT
- In force
- 8 hr
- Issued by
- the Storm Prediction Center
- Strongest gust expected
- 60 kt
Counties Bladen County, NC, Brunswick County, NC, Carteret County, NC, Columbus County, NC, Craven County, NC, Cumberland County, NC, Duplin County, NC, Greene County, NC, Harnett County, NC, Johnston County, NC, Jones County, NC, Lenoir County, NC, New Hanover County, NC, Onslow County, NC, Pamlico County, NC, Pender County, NC, Sampson County, NC, Wayne County, NC
The radar
The Morehead City radar (KMHX), 92 km from the middle of the area, began a volume at 03:07 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 SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 30%
- One or more EF2 to EF5 tornadoes
- 10%
- Ten or more severe wind reports
- 5%
- One or more gusts of 65 knots or more
- 5%
- Ten or more severe hail reports
- 5%
- One or more hailstones of 2 inches or more
- 5%
- Six or more combined severe hail and wind reports
- 20%
Warnings issued inside it
10 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 14, 11:14 PM EDT | Tornado Warning | MHX | Carteret, Craven, Duplin, Jones, Lenoir, Onslow | 46 min |
| Sep 14, 11:56 PM EDT | Flash Flood Warning | RAH | Cumberland, Harnett, Hoke, Johnston, Moore, Sampson and 4 more | 39 hr |
| Sep 14, 11:58 PM EDT | Tornado Warning | MHX | Carteret, Craven, Jones, Onslow | 47 min |
| Sep 15, 1:43 AM EDT | Tornado Warning | MHX | Duplin, Jones, Onslow | 47 min |
| Sep 15, 2:07 AM EDT | Flash Flood Warning | ILM | Bladen, Brunswick, Columbus, New Hanover, Pender, Robeson | 20 hr |
| Sep 15, 2:34 AM EDT | Tornado Warning | MHX | Jones, Onslow | 41 min |
| Sep 15, 3:02 AM EDT | Flash Flood Warning | MHX | Beaufort, Craven, Jones, Lenoir | 3 hr |
| Sep 15, 3:13 AM EDT | Flash Flood Warning | MHX | Duplin, Onslow | 12 hr |
| Sep 15, 4:35 AM EDT | Tornado Warning | MHX | Greene, Lenoir | 25 min |
| Sep 15, 4:58 AM EDT | Tornado Warning | RAH | Wayne | 21 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Newport, NC (KMHX), launched 00:00Z, 3.1 hours before the alert went out and 91 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
- 522 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 546 m above ground
- 0-6 km bulk shear
- 0 kt
- 0-1 km storm-relative helicity
- 0 m²/s²
- 0-3 km storm-relative helicity
- 0 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
463 WWUS20 KWNS 150300 SEL5 SPC WW 150300 NCZ000-CWZ000-151100- URGENT - IMMEDIATE BROADCAST REQUESTED Tornado Watch Number 375 NWS Storm Prediction Center Norman OK 1100 PM EDT Fri Sep 14 2018 The NWS Storm Prediction Center has issued a * Tornado Watch for portions of Southeast North Carolina Coastal Waters * Effective this Friday night and Saturday morning from 1100 PM until 700 AM EDT. * Primary threats include... A couple tornadoes possible SUMMARY...A moist air mass and strong low-level wind field will continue to yield low-topped/transient supercells on the periphery of Florence. The tornado watch area is approximately along and 50 statute miles north and south of a line from 60 miles west of Jacksonville NC to 55 miles south southeast of New Bern NC. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU5). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Tornado Watch means conditions are favorable for tornadoes and severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. && OTHER WATCH INFORMATION...CONTINUE...WW 374... AVIATION...Tornadoes and a few severe thunderstorms with hail surface and aloft to 0 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 14050. ...Guyer
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 14, 8:01 PM EDT | Mesoscale Discussion | SPC | Beaufort, Carteret, Craven, Cumberland, Dare, Duplin and 18 more | 119 min |
| Sep 14, 10:25 PM EDT | Mesoscale Discussion | SPC | Bladen, Brunswick, Carteret, Columbus, Craven, Cumberland and 11 more | 95 min |
| Sep 15, 2:59 AM EDT | Mesoscale Discussion | SPC | Bladen, Brunswick, Carteret, Columbus, Craven, Cumberland and 12 more | 91 min |
| Sep 15, 6:15 AM EDT | Mesoscale Discussion | SPC | Beaufort, Bladen, Brunswick, Carteret, Columbus, Craven and 16 more | 90 min |
| Sep 15, 6:59 AM EDT | Tornado Watch | SPC | Bladen, Brunswick, Columbus, Cumberland, Duplin, Greene and 14 more | 10 hr |
| Sep 15, 12:01 PM EDT | Mesoscale Discussion | SPC | Bladen, Brunswick, Columbus, Craven, Cumberland, Duplin and 9 more | 119 min |
| Sep 15, 3:26 PM EDT | Mesoscale Discussion | SPC | Pender | 64 min |
| Sep 15, 4:38 PM EDT | Tornado Watch | SPC | Bladen, Brunswick, Columbus, Cumberland, Hoke, New Hanover and 4 more | 6 hr |
Nearby
Tornado Watches in North Carolina, 2018Every tornado watch in 2018
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.