Alert archive / Wisconsin / Mesoscale Discussions in 2016
Mesoscale Discussion 871
The Storm Prediction Center issued this mesoscale discussion at Jun 10, 2016, 8:33 PM CDT for 15 counties in Iowa; 25 counties in Wisconsin. It was in force for 117 min.
The area
The outline as issued.
The facts
- Issued
- Jun 10, 2016, 8:33 PM CDT (01:33 UTC)
- Expired
- Jun 10, 2016, 10:30 PM CDT
- In force
- 117 min
- Issued by
- the Storm Prediction Center
All 40 counties
Allamakee County, IA, Cerro Gordo County, IA, Chickasaw County, IA, Clayton County, IA, Emmet County, IA, Fayette County, IA, Floyd 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, Brown County, WI, Calumet County, WI, Columbia County, WI, Crawford County, WI, Dane County, WI, Dodge County, WI, Fond du Lac County, WI, Grant County, WI, Green County, WI, Green Lake County, WI, Iowa County, WI, Jefferson County, WI, Lafayette County, WI, Manitowoc County, WI, Marquette County, WI, Outagamie County, WI, Ozaukee County, WI, Richland County, WI, Rock County, WI, Sauk County, WI, Sheboygan County, WI, Walworth County, WI, Washington County, WI, Waukesha County, WI, Winnebago County, WI
The radar
The La Crosse radar (KARX), 33 km from the middle of the area, began a volume at 01:36 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
Davenport, (KDVN), launched 00:00Z, 1.6 hours before the alert went out and 219 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.
- Mixed-layer CAPE
- 238 J/kg
- Mixed-layer CIN
- -204 J/kg
- Mixed-layer LCL
- 2073 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 8 m²/s²
- 0-3 km storm-relative helicity
- 76 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
985
ACUS11 KWNS 110134
SWOMCD
SPC MCD 110133
WIZ000-IAZ000-MNZ000-110330-
MESOSCALE DISCUSSION 0871
NWS STORM PREDICTION CENTER NORMAN OK
0833 PM CDT FRI JUN 10 2016
AREAS AFFECTED...PORTIONS OF EASTERN/SOUTHERN WI...NRN IA
CONCERNING...SEVERE THUNDERSTORM WATCH 243...245...
VALID 110133Z - 110330Z
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH
243...245...CONTINUES.
SUMMARY...STRONG/SEVERE THUNDERSTORMS WILL CONTINUE TO POSE A RISK
FOR DAMAGING WINDS...MAINLY OVER SEVERE THUNDERSTORM WATCH 245. THE
SEVERE THREAT OVER THE REMAINING VALID PORTIONS OF SEVERE
THUNDERSTORM WATCH 243 CONTINUES TO DIMINISH AND A DOWNSTREAM WATCH
IS NOT EXPECTED.
DISCUSSION...A LINE OF STRONG/SEVERE THUNDERSTORMS EXTENDED FROM
NEAR GREEN BAY SOUTH/WEST TO DANE COUNTY WI THEN WEST ACROSS
NORTHERN IA. THE GREATEST SEVERE THREAT CONTINUES OVER SOUTHERN
PORTIONS OF WW 245 ...WHERE A WELL ORGANIZED BOWING SEGMENT WITH
ATTENDANT COLD POOL CONTINUES MOVING SOUTHEAST WITHIN A
MODERATE/STRONGLY UNSTABLE AIR MASS. DESPITE NOCTURNAL
COOLING/INCREASING INHIBITION THESE STORMS WILL POSE A CONTINUED
SEVERE WIND RISK...WITH THE POTENTIAL FOR ADDITIONAL BRIEF QLCS
CIRCULATIONS AS RECENTLY OCCURRED OVER OUTAGAMIE COUNTY.
FARTHER WEST ACROSS WW 243...STORMS HAVE GENERALLY WEAKENED WITH
SOUTHWARD MOVEMENT AS INHIBITION INCREASES. WEST OF WW 243...A
LOCALIZED SEVERE THREAT CONTINUES WITH CELLS THAT HAVE DEVELOPED ON
THE WESTERN FLANK OF STORM OUTFLOW. THESE STORMS WILL POSE A SEVERE
THREAT FOR AT LEAST A COUPLE MORE HOURS...BUT THE OVERALL SEVERE
THREAT OVER WW 243 SHOULD CONTINUE TO DIMINISH. THUS...A NEW WATCH
IS NOT CURRENTLY ANTICIPATED.
..BUNTING.. 06/11/2016
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...GRB...MKX...ARX...DMX...FSD...
LAT...LON 42939419 42979506 43289525 43489497 43499279 43539140
43629056 43838953 44668849 44748781 44498747 43848760
42968789 42508840 42939419Nearby
Mesoscale Discussions in Wisconsin, 2016Mesoscale Discussions in Iowa, 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.