Alert archive / Nebraska / Mesoscale Discussions in 2008

Mesoscale Discussion 1321

June 10, 20084 counties in Iowa; 6 counties in Kansas; 47 counties in Nebraska

The Storm Prediction Center issued this mesoscale discussion at Jun 10, 2008, 11:06 PM CDT for 4 counties in Iowa; 6 counties in Kansas; 47 counties in Nebraska. It was in force for 54 min.

The area

The outline as issued.

The facts

Issued: Jun 10, 2008, 11:06 PM CDT (04:06 UTC)
Expired: Jun 11, 2008, 12:00 AM CDT
In force: 54 min
Issued by: the Storm Prediction Center

All 57 counties

Fremont County, IA, Harrison County, IA, Mills County, IA, Pottawattamie County, IA, Cloud County, KS, Jewell County, KS, Marshall County, KS, Republic County, KS, Smith County, KS, Washington County, KS, Adams County, NE, Antelope County, NE, Boone County, NE, Buffalo County, NE, Burt County, NE, Butler County, NE, Cass County, NE, Clay County, NE, Colfax County, NE, Cuming County, NE, Dodge County, NE, Douglas County, NE, Fillmore County, NE, Franklin County, NE, Gage County, NE, Garfield County, NE, Greeley County, NE, Hall County, NE, Hamilton County, NE, Howard County, NE, Jefferson County, NE, Johnson County, NE, Kearney County, NE, Lancaster County, NE, Madison County, NE, Merrick County, NE, Nance County, NE, Nemaha County, NE, Nuckolls County, NE, Otoe County, NE, Pawnee County, NE, Platte County, NE, Polk County, NE, Saline County, NE, Sarpy County, NE, Saunders County, NE, Seward County, NE, Sherman County, NE, Stanton County, NE, Thayer County, NE, Thurston County, NE, Valley County, NE, Washington County, NE, Wayne County, NE, Webster County, NE, Wheeler County, NE, York County, NE

The radar

The Omaha radar (KOAX), 98 km from the middle of the area, began a volume at 04:06 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

Omaha, NE (KOAX), launched 00:00Z, 4.1 hours before the alert went out and 97 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2373 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 91 m²/s²
0-3 km storm-relative helicity: 284 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.7

Open this sounding in Storm Lab

The text

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

000 
ACUS11 KWNS 110406
SWOMCD
SPC MCD 110406 
IAZ000-MOZ000-NEZ000-KSZ000-110500-

MESOSCALE DISCUSSION 1321
NWS STORM PREDICTION CENTER NORMAN OK
1106 PM CDT TUE JUN 10 2008

AREAS AFFECTED...ERN NEB AND NERN KS

CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE 

VALID 110406Z - 110500Z

IT NOW APPEARS THAT CAP IS BEGINNING TO IMPACT THE SEVERE STORMS IN
NRN KS AND THEY ARE SLOWLY WEAKENING.  STILL CONCERNED ABOUT THE
DEVELOPMENT OF SEVERE STORMS IN THE WARM ADVECTION ASSOCIATED WITH
THE STRONG LOW LEVEL JET.  STORMS ARE SLOWLY INCREASING SCENTRAL
NEB.  MODELS ALL SUGGEST AN UPWARD TREND IN THIS ACTIVITY THROUGH
THE NIGHT AND STILL MONITORING FOR A POSSIBLE WATCH FOR AT LEAST
LARGE HAIL ACROSS PORTIONS OF ERN NEB.

..HALES.. 06/11/2008

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...DMX...EAX...OAX...TOP...GID...LBF...

39339667 39449865 40159927 41189951 41919923 42259829
42239669 41909554 41359534 40299576 40059584

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 10, 9:47 PM CDT	Mesoscale Discussion	SPC	Allamakee, Cerro Gordo, Chickasaw, Clayton, Fayette, Floyd and 4 more	88 min
Jun 11, 4:40 AM CDT	Mesoscale Discussion	SPC	Buena Vista, Calhoun, Carroll, Cherokee, Clay, Crawford and 14 more	65 min
Jun 11, 5:16 AM CDT	Severe Thunderstorm Watch	SPC	Buena Vista, Calhoun, Cherokee, Clay, Dickinson, Emmet and 17 more	5 hr
Jun 11, 6:23 AM CDT	Mesoscale Discussion	SPC	Buena Vista, Cherokee, Clay, Dickinson, Emmet, Humboldt and 8 more	2 hr
Jun 11, 2:03 PM CDT	Mesoscale Discussion	SPC	Adair, Adams, Audubon, Buena Vista, Calhoun, Carroll and 22 more	117 min
Jun 11, 2:52 PM CDT	Tornado Watch	SPC	Adair, Adams, Audubon, Buena Vista, Calhoun, Carroll and 32 more	7 hr
Jun 11, 5:59 PM CDT	Mesoscale Discussion	SPC	Adair, Adams, Audubon, Boone, Buena Vista, Calhoun and 35 more	91 min
Jun 10, 9:13 PM CDT	Mesoscale Discussion	SPC	Barber, Barton, Clark, Cloud, Comanche, Edwards and 30 more	62 min
Jun 10, 10:05 PM CDT	Mesoscale Discussion	SPC	Atchison, Brown, Clay, Cloud, Dickinson, Ellsworth and 20 more	55 min
Jun 11, 3:37 PM CDT	Tornado Watch	SPC	Barton, Brown, Clay, Cloud, Dickinson, Edwards and 22 more	6 hr

Nearby

Mesoscale Discussions in Nebraska, 2008 Mesoscale Discussions in Kansas, 2008 Mesoscale Discussions in Iowa, 2008 Every 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.