Alert archive / North Carolina / Mesoscale Discussions in 2003
Mesoscale Discussion 2016
The Storm Prediction Center issued this mesoscale discussion at Jul 29, 2003, 4:51 PM EDT for 36 counties in North Carolina; 20 counties in South Carolina. It was in force for 114 min.
The area
The outline as issued.
The facts
- Issued
- Jul 29, 2003, 4:51 PM EDT (20:51 UTC)
- Expired
- Jul 29, 2003, 6:45 PM EDT
- In force
- 114 min
- Issued by
- the Storm Prediction Center
All 56 counties
Alamance County, NC, Anson County, NC, Cabarrus County, NC, Catawba County, NC, Chatham County, NC, Cleveland County, NC, Cumberland County, NC, Davidson County, NC, Davie County, NC, Durham County, NC, Edgecombe County, NC, Forsyth County, NC, Franklin County, NC, Gaston County, NC, Guilford County, NC, Harnett County, NC, Hoke County, NC, Iredell County, NC, Johnston County, NC, Lee County, NC, Lincoln County, NC, Mecklenburg County, NC, Montgomery County, NC, Moore County, NC, Nash County, NC, Orange County, NC, Randolph County, NC, Richmond County, NC, Robeson County, NC, Rowan County, NC, Scotland County, NC, Stanly County, NC, Union County, NC, Wake County, NC, Wilson County, NC, Yadkin County, NC, Cherokee County, SC, Chester County, SC, Chesterfield County, SC, Darlington County, SC, Dillon County, SC, Fairfield County, SC, Florence County, SC, Greenwood County, SC, Kershaw County, SC, Lancaster County, SC, Laurens County, SC, Lee County, SC, Lexington County, SC, Marlboro County, SC, Newberry County, SC, Richland County, SC, Saluda County, SC, Spartanburg County, SC, Union County, SC, York County, SC
The radar
The Columbia radar (KCAE), 131 km from the middle of the area, began a volume at 20:52 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, 8.9 hours before the alert went out and 133 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
- 681 J/kg
- Mixed-layer CIN
- -58 J/kg
- Mixed-layer LCL
- 1045 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- -3 m²/s²
- 0-3 km storm-relative helicity
- 54 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.4
The text
As transmitted, in the capitals the NWS used until 2016.
388 ACUS11 KWNS 292052 SWOMCD SPC MCD 292051 NCZ000-SCZ000-292245- MESOSCALE DISCUSSION 2016 NWS STORM PREDICTION CENTER NORMAN OK 0351 PM CDT TUE JUL 29 2003 AREAS AFFECTED...NC / SC CONCERNING...SEVERE THUNDERSTORM WATCH 812... VALID 292051Z - 292245Z LINE OF STORMS IS INCREASING IN INTENSITY AHEAD OF REMNANT MCV AS IT ENTERS INTO STRONGER INSTABILITY. WIND DAMAGE THREAT WILL BE HIGHEST WITH THIS LINE GIVEN ORGANIZED OUTFLOW. ISOLATED CELLS AHEAD OF THIS LINE HAVE SHOWN STRONG OUTFLOW CHARACTERISTICS ON VISIBLE IMAGERY AS WELL AND WILL HAVE A CONTINUED THREAT OF ISOLATED DAMAGING WINDS. ..JEWELL.. 07/29/2003 ...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT... ATTN...WFO...AKQ...MHX...RAH...ILM...RNK...CAE...GSP... 35138218 36328064 36097712 33967979 33848227
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 29, 2:14 PM EDT | Mesoscale Discussion | SPC | Alamance, Alexander, Anson, Buncombe, Burke, Cabarrus and 30 more | 2 hr |
| Jul 29, 3:00 PM EDT | Severe Thunderstorm Watch | SPC | Alexander, Anson, Bladen, Burke, Cabarrus, Caldwell and 31 more | 6 hr |
| Jul 29, 7:42 PM EDT | Mesoscale Discussion | SPC | Anson, Beaufort, Bladen, Chatham, Columbus, Craven and 25 more | 93 min |
Nearby
Mesoscale Discussions in North Carolina, 2003Mesoscale Discussions in South Carolina, 2003Every mesoscale discussion in 2003
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.