Alert archive / North Carolina / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 224, NWS Raleigh, NC

October 25, 20104 counties in North Carolina

NWS Raleigh, NC issued this severe thunderstorm warning at Oct 25, 2010, 12:02 PM EDT for 4 counties in North Carolina. It was in force for 43 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Oct 25, 2010, 12:02 PM EDT (16:02 UTC)
Expired
Oct 25, 2010, 12:45 PM EDT
In force
43 min
Issued by
NWS Raleigh, NC
Area
Storm-based polygon

Counties Davidson County, NC, Montgomery County, NC, Randolph County, NC, Stanly County, NC

The radar

The Raleigh/Durham radar (KRAX), 141 km from the middle of the area, began a volume at 16:01 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Oct 25, 8:23 AM EDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 12:00Z, 4.0 hours before the alert went out and 293 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.

Skew-T log-pSkew-T log-p diagram, Charleston AFB, SC at 12:00Z on 2010-10-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1764 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Charleston AFB, SC at 12:00Z on 2010-10-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 134 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1764 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
593 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
134 m²/s²
0-3 km storm-relative helicity
126 m²/s²
Significant tornado parameter
1.0
Supercell composite
6.9

Open this sounding in Storm Lab

The office that day

Everything else NWS Raleigh, NC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Oct 25, 10:16 AM EDTSpecial Weather StatementRAHDavidson, Forsyth, Guilford, Randolph, Stanly74 min
Oct 25, 11:43 AM EDTSpecial Weather StatementRAHCumberland, Harnett, Hoke62 min
Oct 25, 11:51 AM EDTSpecial Weather StatementRAHAnson, Davidson, Montgomery, Randolph, Stanly69 min
Oct 25, 12:44 PM EDTSpecial Weather StatementRAHAlamance, Chatham, Lee, Moore, Orange76 min
Oct 25, 12:53 PM EDTSpecial Weather StatementRAHCumberland, Johnston82 min
Oct 25, 1:48 PM EDTSpecial Weather StatementRAHSampson57 min
Oct 25, 1:54 PM EDTSpecial Weather StatementRAHDurham, Granville, Vance51 min
Oct 25, 1:59 PM EDTSpecial Weather StatementRAHWayne, Wilson61 min
Oct 25, 2:36 PM EDTSpecial Weather StatementRAHEdgecombe, Halifax84 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 2010Every severe thunderstorm warning 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.