Alert archive / Kansas / Mesoscale Discussions in 2007

Mesoscale Discussion 2093

October 17, 200722 counties in Kansas; 9 counties in Nebraska

The Storm Prediction Center issued this mesoscale discussion at Oct 17, 2007, 12:58 PM CDT for 22 counties in Kansas; 9 counties in Nebraska. It was in force for 92 min.

The area

The outline as issued.

The facts

Issued
Oct 17, 2007, 12:58 PM CDT (17:58 UTC)
Expired
Oct 17, 2007, 2:30 PM CDT
In force
92 min
Issued by
the Storm Prediction Center
All 31 counties

Barber County, KS, Barton County, KS, Clark County, KS, Comanche County, KS, Edwards County, KS, Ellis County, KS, Ford County, KS, Graham County, KS, Hodgeman County, KS, Kiowa County, KS, Ness County, KS, Norton County, KS, Osborne County, KS, Pawnee County, KS, Phillips County, KS, Pratt County, KS, Rooks County, KS, Rush County, KS, Russell County, KS, Smith County, KS, Stafford County, KS, Trego County, KS, Adams County, NE, Dawson County, NE, Franklin County, NE, Furnas County, NE, Gosper County, NE, Harlan County, NE, Kearney County, NE, Phelps County, NE, Webster County, NE

The radar

The Dodge City radar (KDDC), 140 km from the middle of the area, began a volume at 18:02 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 12:00Z, 6.0 hours before the alert went out and 137 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 12:00Z on 2007-10-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 500 joules per kilogram.LCLLFCEL10008507005003002001001 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, Dodge City, at 12:00Z on 2007-10-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 276 square meters per square second.1939587897Sfc1 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
500 J/kg
Mixed-layer CIN
-74 J/kg
Mixed-layer LCL
1044 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
276 m²/s²
0-3 km storm-relative helicity
262 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.1

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
Oct 17, 1:12 AM CDTMesoscale DiscussionSPCBarber, Clark, Comanche, Edwards, Finney, Ford and 13 more93 min
Oct 17, 1:44 AM CDTSevere Thunderstorm WatchSPCBarber, Clark, Comanche, Edwards, Ellis, Finney and 21 more7 hr
Oct 17, 4:07 AM CDTMesoscale DiscussionSPCAllen, Anderson, Atchison, Bourbon, Brown, Butler and 52 more113 min
Oct 17, 6:50 AM CDTMesoscale DiscussionSPCClark, Comanche, Edwards, Ford, Gray, Hodgeman and 9 more100 min
Oct 17, 10:24 AM CDTMesoscale DiscussionSPCAllen, Anderson, Bourbon, Butler, Chase, Chautauqua and 25 more96 min
Oct 17, 10:43 AM CDTTornado WatchSPCAllen, Anderson, Bourbon, Chautauqua, Cherokee, Coffey and 8 more7 hr
Oct 17, 2:25 PM CDTTornado WatchSPCBarber, Chautauqua, Cowley, Elk, Harper, Kingman and 4 more8 hr
Oct 17, 2:59 PM CDTSevere Thunderstorm WatchSPCBarton, Cloud, Decatur, Edwards, Ellis, Ellsworth and 21 more7 hr
Oct 17, 5:30 PM CDTTornado WatchSPCBourbon, Cherokee, Crawford6 hr
Oct 17, 5:44 PM CDTMesoscale DiscussionSPCBarton, Cloud, Decatur, Edwards, Ellis, Ellsworth and 22 more61 min
Oct 17, 6:23 PM CDTMesoscale DiscussionSPCAllen, Anderson, Bourbon, Butler, Chase, Chautauqua and 32 more37 min

Nearby

Mesoscale Discussions in Kansas, 2007Mesoscale Discussions in Nebraska, 2007Every mesoscale discussion in 2007

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.