Alert archive / Minnesota / Mesoscale Discussions in 2016

Mesoscale Discussion 960

June 17, 201610 counties in Minnesota

The Storm Prediction Center issued this mesoscale discussion at Jun 17, 2016, 9:56 AM CDT for 10 counties in Minnesota. It was in force for 34 min.

The area

The outline as issued.

The facts

Issued
Jun 17, 2016, 9:56 AM CDT (14:56 UTC)
Expired
Jun 17, 2016, 10:30 AM CDT
In force
34 min
Issued by
the Storm Prediction Center

Counties Beltrami County, MN, Cass County, MN, Clearwater County, MN, Douglas County, MN, Grant County, MN, Hubbard County, MN, Otter Tail County, MN, Pope County, MN, Todd County, MN, Wadena County, MN

The radar

The Fargo/Grand Forks radar (KMVX), 193 km from the middle of the area, began a volume at 14:55 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, 2.9 hours before the alert went out and 231 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 2016-06-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2016-06-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 7 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1540 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
7 m²/s²
0-3 km storm-relative helicity
15 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

316 
ACUS11 KWNS 171457
SWOMCD
SPC MCD 171456 
MNZ000-171530-

MESOSCALE DISCUSSION 0960
NWS STORM PREDICTION CENTER NORMAN OK
0956 AM CDT FRI JUN 17 2016

AREAS AFFECTED...NRN INTO CNTRL MN

CONCERNING...SEVERE THUNDERSTORM WATCH 264...

VALID 171456Z - 171530Z

THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 264
CONTINUES.

SUMMARY...A MARGINAL STRONG TO LOW-END SEVERE GUST THREAT WILL
CONTINUE.  AN ADDITIONAL SEVERE THUNDERSTORM WATCH IS NOT
ANTICIPATED.

DISCUSSION...RADAR MOSAIC SHOWS A SQUALL LINE OVER NRN MN AND
EXTENDING SWD INTO WEST N-CNTRL MN.  THE LINE IS MOVING EWD BETWEEN
25-30 KT AND IT IS MOVING INTO A LESS-UNSTABLE ENVIRONMENT PER
OBJECTIVE ANALYSIS.  NONETHELESS...THE ORGANIZED COLD
POOL/ASSOCIATED MCV MAY CONTINUE TO ENABLE ENOUGH ORGANIZATION TO
OVERCOME THE LIMITING POTENTIAL OF A LOW-LEVEL CAPPING INVERSION FOR
STRONG TO PERHAPS LOCALLY SEVERE GUSTS TO REACH THE SURFACE. 
HOWEVER GOING FORWARD IN TIME...A LESSENING IN GUST POTENTIAL HAS
AND WILL LIKELY CONTINUE.  RECENTLY MEASURED GUST AT KFSE ONLY
SAMPLED A 33-KT GUST...LIKELY INDICATIVE OF THE LOWERING SEVERE
POTENTIAL.

..SMITH.. 06/17/2016

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

ATTN...WFO...DLH...MPX...FGF...

LAT...LON   46079606 48759498 48559374 45959439 45459478 45569597
            46079606

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 17, 5:44 AM CDTMesoscale DiscussionSPCKittson, Marshall61 min
Jun 17, 7:20 AM CDTSevere Thunderstorm WatchSPCBeltrami, Clearwater, Kittson, Lake of the Woods, Marshall, Pennington and 3 more4 hr
Jun 17, 7:32 AM CDTMesoscale DiscussionSPCBeltrami, Clearwater, Kittson, Lake of the Woods, Mahnomen, Marshall and 5 more28 min
Jun 17, 2:31 PM CDTMesoscale DiscussionSPCBrown, Chippewa, Cottonwood, Jackson, Kandiyohi, Lac qui Parle and 14 more89 min
Jun 17, 3:06 PM CDTSevere Thunderstorm WatchSPCBlue Earth, Brown, Carver, Chippewa, Cottonwood, Jackson and 21 more7 hr
Jun 17, 6:13 PM CDTMesoscale DiscussionSPCBlue Earth, Faribault, Jackson, Martin, Nobles, Pipestone and 2 more92 min

Nearby

Mesoscale 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.