Alert archive / North Carolina / Mesoscale Discussions in 2010
Mesoscale Discussion 1237
The Storm Prediction Center issued this mesoscale discussion at Jul 10, 2010, 3:11 PM EDT for 18 counties in North Carolina; 18 counties in South Carolina. It was in force for 94 min.
The area
The outline as issued.
The facts
- Issued
- Jul 10, 2010, 3:11 PM EDT (19:11 UTC)
- Expired
- Jul 10, 2010, 4:45 PM EDT
- In force
- 94 min
- Issued by
- the Storm Prediction Center
All 36 counties
Beaufort County, NC, Bladen County, NC, Brunswick County, NC, Carteret County, NC, Columbus County, NC, Craven County, NC, Dare County, NC, Duplin County, NC, Hyde County, NC, Jones County, NC, Lenoir County, NC, New Hanover County, NC, Onslow County, NC, Pamlico County, NC, Pender County, NC, Robeson County, NC, Tyrrell County, NC, Washington County, NC, Berkeley County, SC, Calhoun County, SC, Charleston County, SC, Clarendon County, SC, Colleton County, SC, Darlington County, SC, Dillon County, SC, Dorchester County, SC, Florence County, SC, Georgetown County, SC, Horry County, SC, Lee County, SC, Lexington County, SC, Marion County, SC, Orangeburg County, SC, Richland County, SC, Sumter County, SC, Williamsburg County, SC
The radar
The Raleigh/Durham radar (KRAX), 97 km from the middle of the area, began a volume at 19:11 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, 7.2 hours before the alert went out and 103 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
- 662 J/kg
- Mixed-layer CIN
- -63 J/kg
- Mixed-layer LCL
- 945 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 29 m²/s²
- 0-3 km storm-relative helicity
- 45 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
420
ACUS11 KWNS 101911
SWOMCD
SPC MCD 101911
NCZ000-SCZ000-102045-
MESOSCALE DISCUSSION 1237
NWS STORM PREDICTION CENTER NORMAN OK
0211 PM CDT SAT JUL 10 2010
AREAS AFFECTED...PIEDMONT/COASTAL PORTIONS OF SC/NC
CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY
VALID 101911Z - 102045Z
STRONG/SEVERE TSTMS MAY POSE A DAMAGING WIND THREAT ACROSS THE
PIEDMONT/COASTAL PORTIONS OF SC/NC THROUGH LATE AFTERNOON. A WATCH
IS NOT ANTICIPATED.
SCATTERED-BROKEN CLUSTERS OF TSTMS WILL CONTINUE TO CONGEAL/SPREAD
EASTWARD ACROSS THE PIEDMONT/COASTAL PORTIONS OF SC/NC ALONG/JUST
AHEAD OF A SOUTHEAST ADVANCING COLD FRONT. WHILE LOW TO MID
TROPOSPHERIC FLOW IS RELATIVELY WEAK...SOME GRADUAL STRENGTHENING
APPEARS TO BE OCCURRING ALOFT...AND THIS WILL CONTRIBUTE TO THE
SUSTENANCE/EASTWARD PROPAGATION OF TSTM CLUSTERS TOWARD/ACROSS THE
COASTAL PORTIONS OF NC/SC THROUGH LATE AFTERNOON/EARLY EVENING. WITH
A WINDOW FOR SOME ADDITIONAL HEATING...A HIGH MOISTURE CONTENT
AIRMASS /GPS DERIVED PERCEPTIBLE WATER VALUES OF 2.2 INCHES/...WITH
NEAR 90F SURFACE TEMPERATURES/STEEP LOW LEVEL LAPSE RATES AND MLCAPE
ESTIMATED TO BE AS HIGH AS 1500-2000 J/KG...PERIODIC DOWNBURSTS
CAPABLE OF DAMAGING WINDS ARE POSSIBLE.
..GUYER.. 07/10/2010
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...AKQ...MHX...RAH...ILM...CHS...CAE...
LAT...LON 36117646 35977529 34877591 32478042 33978171 34567967
35047809 36117646SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 9, 9:29 PM EDT | Mesoscale Discussion | SPC | Bladen, Brunswick, Columbus, Robeson, Scotland | 61 min |
Nearby
Mesoscale Discussions in North Carolina, 2010Mesoscale Discussions in South Carolina, 2010Every mesoscale discussion in 2010
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.