Alert archive / Iowa / Mesoscale Discussions in 2016

Mesoscale Discussion 867

June 10, 201611 counties in Iowa; 9 counties in Minnesota; 10 counties in Wisconsin

The Storm Prediction Center issued this mesoscale discussion at Jun 10, 2016, 5:51 PM CDT for 11 counties in Iowa; 9 counties in Minnesota; 10 counties in Wisconsin. It was in force for 114 min.

The area

The outline as issued.

The facts

Issued
Jun 10, 2016, 5:51 PM CDT (22:51 UTC)
Expired
Jun 10, 2016, 7:45 PM CDT
In force
114 min
Issued by
the Storm Prediction Center
All 30 counties

Allamakee County, IA, Cerro Gordo County, IA, Emmet County, IA, Hancock County, IA, Howard County, IA, Kossuth County, IA, Mitchell County, IA, Palo Alto County, IA, Winnebago County, IA, Winneshiek County, IA, Worth County, IA, Dodge County, MN, Faribault County, MN, Fillmore County, MN, Freeborn County, MN, Houston County, MN, Mower County, MN, Olmsted County, MN, Wabasha County, MN, Winona County, MN, Adams County, WI, Buffalo County, WI, Crawford County, WI, Jackson County, WI, Juneau County, WI, La Crosse County, WI, Monroe County, WI, Richland County, WI, Trempealeau County, WI, Vernon County, WI

The radar

The La Crosse radar (KARX), 83 km from the middle of the area, began a volume at 22:50 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

Minneapolis, MN (KMPX), launched 12:00Z, 10.9 hours before the alert went out and 167 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, Minneapolis, MN at 12:00Z on 2016-06-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 746 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, Minneapolis, MN at 12:00Z on 2016-06-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 236 square meters per square second.1939Sfc1 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
746 J/kg
Mixed-layer CIN
-336 J/kg
Mixed-layer LCL
1531 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
236 m²/s²
0-3 km storm-relative helicity
229 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

528 
ACUS11 KWNS 102252
SWOMCD
SPC MCD 102251 
WIZ000-IAZ000-MNZ000-110045-

MESOSCALE DISCUSSION 0867
NWS STORM PREDICTION CENTER NORMAN OK
0551 PM CDT FRI JUN 10 2016

AREAS AFFECTED...PORTIONS OF SWRN WI...SERN MN...NORTHERN IA

CONCERNING...SEVERE THUNDERSTORM WATCH 243...

VALID 102251Z - 110045Z

THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 243
CONTINUES.

SUMMARY...THE THREAT FOR DAMAGING WINDS AND ISOLATED HAIL CONTINUES
FOR THE REMAINING VALID PORTIONS OF SEVERE THUNDERSTORM WATCH 243.

DISCUSSION...STRONG/SEVERE THUNDERSTORMS WITH A HISTORY OF SEVERE
WINDS/DAMAGE WERE LOCATED FROM JACKSON COUNTY WI SOUTHWEST TO EMMET
COUNTY IA AT 2245Z. THESE STORMS WERE LOCATED WITHIN AN ENVIRONMENT
CHARACTERIZED BY STRONG SURFACE-BASED INSTABILITY BUT MODEST /BELOW
30 KTS/ VERTICAL WIND SHEAR. RECENT RADAR TRENDS SUGGEST THE GUST
FRONT HAS SURGED OUT WELL AHEAD OF THE STORMS OVER FAR SOUTHEAST
MN...SOMEWHAT DIMINISHING THE SEVERE THREAT AT LEAST IN THE SHORT
TERM IN THIS AREA. OVERALL...WITH MODERATE-STRONG INSTABILITY IN
PLACE AND A PRONOUNCED COLD POOL...EXPECT THE THREAT FOR DAMAGING
WINDS TO CONTINUE ACROSS THE REMAINING VALID PORTIONS OF THE WATCH
THROUGH 02Z.

..BUNTING/CORFIDI.. 06/10/2016

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

ATTN...WFO...GRB...MKX...ARX...MPX...DMX...

LAT...LON   43629479 43799331 44179269 44519193 44529117 44359069
            44189006 43958965 43678971 43259030 43179136 43049371
            43019429 42979485 43629479

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 9, 7:58 PM CDTMesoscale DiscussionSPCClinton, Jackson2 hr
Jun 10, 12:02 PM CDTMesoscale DiscussionSPCClay, Dickinson, Emmet, Kossuth, O'Brien, Osceola and 2 more88 min
Jun 10, 2:54 PM CDTMesoscale DiscussionSPCAllamakee, Howard, Mitchell, Winneshiek96 min
Jun 10, 3:19 PM CDTSevere Thunderstorm WatchSPCAllamakee, Cerro Gordo, Emmet, Hancock, Howard, Kossuth and 6 more6 hr
Jun 9, 11:58 PM CDTSevere Thunderstorm WatchSPCKittson4 hr
Jun 10, 2:44 PM CDTTornado WatchSPCAshland, Barron, Chippewa, Clark, Dunn, Eau Claire and 17 more5 hr
Jun 10, 5:09 PM CDTMesoscale DiscussionSPCBrown, Calumet, Clark, Eau Claire, Florence, Forest and 18 more2 hr
Jun 10, 5:41 PM CDTSevere Thunderstorm WatchSPCBrown, Calumet, Columbia, Dodge, Door, Fond du Lac and 16 more4 hr

Nearby

Mesoscale Discussions in Iowa, 2016Mesoscale Discussions in Wisconsin, 2016Mesoscale Discussions in Minnesota, 2016Every mesoscale discussion in 2016

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.