Alert archive / Kansas / Mesoscale Discussions in 2008

Mesoscale Discussion 830

May 8, 200831 counties in Kansas; 7 counties in Oklahoma

The Storm Prediction Center issued this mesoscale discussion at May 8, 2008, 7:19 PM CDT for 31 counties in Kansas; 7 counties in Oklahoma. It was in force for 56 min.

The area

The outline as issued.

The facts

Issued
May 8, 2008, 7:19 PM CDT (00:19 UTC)
Expired
May 8, 2008, 8:15 PM CDT
In force
56 min
Issued by
the Storm Prediction Center
All 38 counties

Barber County, KS, Barton County, KS, Clark County, KS, Comanche County, KS, Edwards County, KS, Ellis County, KS, Finney County, KS, Ford County, KS, Grant County, KS, Gray County, KS, Harper County, KS, Haskell County, KS, Hodgeman County, KS, Kearny County, KS, Kingman County, KS, Kiowa County, KS, Lane County, KS, Meade County, KS, Ness County, KS, Pawnee County, KS, Pratt County, KS, Reno County, KS, Rice County, KS, Rush County, KS, Russell County, KS, Scott County, KS, Seward County, KS, Stafford County, KS, Stevens County, KS, Sumner County, KS, Trego County, KS, Alfalfa County, OK, Beaver County, OK, Grant County, OK, Harper County, OK, Major County, OK, Woods County, OK, Woodward County, OK

The radar

The Dodge City radar (KDDC), 49 km from the middle of the area, began a volume at 00:19 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 watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

The nearest sounding before it

Dodge City, (KDDC), launched 00:00Z, 0.3 hours before the alert went out and 45 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, Dodge City, at 00:00Z on 2008-05-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 926 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Dodge City, at 00:00Z on 2008-05-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 581 square meters per square second.1939587897117Sfc1 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
926 J/kg
Mixed-layer CIN
-60 J/kg
Mixed-layer LCL
1412 m above ground
0-6 km bulk shear
86 kt
0-1 km storm-relative helicity
581 m²/s²
0-3 km storm-relative helicity
855 m²/s²
Significant tornado parameter
2.4
Supercell composite
20.6

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 8, 8:08 PM CDTSevere Thunderstorm WatchSPCBarber, Butler, Chautauqua, Clark, Comanche, Cowley and 18 more6 hr
May 9, 12:33 AM CDTMesoscale DiscussionSPCAllen, Bourbon, Butler, Chautauqua, Cherokee, Cowley and 8 more87 min
May 9, 1:21 AM CDTSevere Thunderstorm WatchSPCCherokee, Crawford3 hr
May 9, 1:00 PM CDTMesoscale DiscussionSPCCheyenne3 hr
May 9, 2:18 PM CDTSevere Thunderstorm WatchSPCCheyenne, Gove, Logan, Rawlins, Sherman, Thomas and 1 more6 hr
May 9, 3:47 PM CDTMesoscale DiscussionSPCCheyenne, Gove, Logan, Rawlins, Sherman, Thomas and 1 more118 min
May 9, 6:02 PM CDTMesoscale DiscussionSPCCheyenne, Gove, Logan, Rawlins, Sheridan, Sherman and 2 more118 min

Nearby

Mesoscale Discussions in Kansas, 2008Mesoscale Discussions in Oklahoma, 2008Every mesoscale discussion in 2008

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.