Alert archive / North Carolina / Mesoscale Discussions in 2014
Mesoscale Discussion 839
The Storm Prediction Center issued this mesoscale discussion at Jun 5, 2014, 3:48 PM EDT for 34 counties in North Carolina; Horry County, South Carolina. It was in force for 57 min.
The area
The outline as issued.
The facts
- Issued
- Jun 5, 2014, 3:48 PM EDT (19:48 UTC)
- Expired
- Jun 5, 2014, 4:45 PM EDT
- In force
- 57 min
- Issued by
- the Storm Prediction Center
All 35 counties
Beaufort County, NC, Bertie County, NC, Bladen County, NC, Brunswick County, NC, Carteret County, NC, Chowan County, NC, Columbus County, NC, Craven County, NC, Cumberland County, NC, Dare County, NC, Duplin County, NC, Edgecombe County, NC, Greene County, NC, Harnett County, NC, Hoke County, NC, Hyde County, NC, Johnston County, NC, Jones County, NC, Lee County, NC, Lenoir County, NC, Martin County, NC, New Hanover County, NC, Onslow County, NC, Pamlico County, NC, Pasquotank County, NC, Pender County, NC, Perquimans County, NC, Pitt County, NC, Robeson County, NC, Sampson County, NC, Tyrrell County, NC, Washington County, NC, Wayne County, NC, Wilson County, NC, Horry County, SC
The radar
The Raleigh/Durham radar (KRAX), 81 km from the middle of the area, began a volume at 19:49 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, 7.8 hours before the alert went out and 97 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
- 890 J/kg
- Mixed-layer CIN
- -79 J/kg
- Mixed-layer LCL
- 892 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 148 m²/s²
- 0-3 km storm-relative helicity
- 132 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.9
The text
As transmitted, in the capitals the NWS used until 2016.
296 ACUS11 KWNS 051948 SWOMCD SPC MCD 051948 NCZ000-SCZ000-052045- MESOSCALE DISCUSSION 0839 NWS STORM PREDICTION CENTER NORMAN OK 0248 PM CDT THU JUN 05 2014 AREAS AFFECTED...COASTAL CAROLINAS CONCERNING...SEVERE THUNDERSTORM WATCH 231... VALID 051948Z - 052045Z THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 231 CONTINUES. SUMMARY...DAMAGING WINDS AND LARGE HAIL REMAIN POSSIBLE ACROSS WW231. DISCUSSION...LOW-LEVEL CONFLUENCE HAS SHIFTED INTO THE BODY OF WW231 COINCIDENT WITH STRONGEST CONVECTION FROM NE-SW ACROSS THE COASTAL PLAINS. WHILE LOCALLY DAMAGING WINDS REMAIN THE GREATEST SEVERE THREAT...LATEST WDSSII DATA SUGGESTS HAIL GREATER THAN GOLF BALL SIZE IS NOTED WITH SEVERE STORM OVER BEAUFORT COUNTY NC. A CONTINUED SLOW UPWARD EVOLUTION IS EXPECTED OVER THE NEXT FEW HOURS AS TSTMS PROPAGATE TOWARD THE COAST. ..DARROW.. 06/05/2014 ...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT... ATTN...WFO...AKQ...MHX...RAH...ILM... LAT...LON 35487931 36457561 34707561 33737932 35487931
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 4, 8:00 PM EDT | Tornado Watch | SPC | Alexander, Alleghany, Ashe, Avery, Buncombe, Burke and 13 more | 6 hr |
| Jun 4, 10:45 PM EDT | Mesoscale Discussion | SPC | Alleghany, Ashe, Avery, Burke, Caldwell, McDowell and 5 more | 2 hr |
| Jun 5, 12:47 PM EDT | Mesoscale Discussion | SPC | Beaufort, Bertie, Camden, Chowan, Craven, Currituck and 24 more | 58 min |
| Jun 5, 1:21 PM EDT | Severe Thunderstorm Watch | SPC | Beaufort, Bladen, Brunswick, Carteret, Columbus, Craven and 21 more | 7 hr |
Nearby
Mesoscale Discussions in North Carolina, 2014Mesoscale Discussions in South Carolina, 2014Every mesoscale discussion in 2014
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.