Alert archive / Minnesota / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 70, NWS Twin Cities, MN

June 16, 2018Douglas County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 16, 2018, 8:11 AM CDT for Douglas County, Minnesota. It was in force for 49 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jun 16, 2018, 8:11 AM CDT (13:11 UTC)
Expired
Jun 16, 2018, 9:00 AM CDT
In force
49 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Douglas County, MN

The radar

The Minneapolis radar (KMPX), 197 km from the middle of the area, began a volume at 13:14 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.

What was reported inside it

TimeReportWhereRemark
Jun 16, 8:50 AM CDTHAIL 0.883 Nw Carlos, MNTIME ESTIMATED. PARK RANGER REPORTS HAIL UP TO NICKLE SIZE. THE DURATION OF THE HAIL EVENT WAS 3 MINUTES.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 1.2 hours before the alert went out and 195 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 2018-06-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1431 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 12:00Z on 2018-06-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 236 square meters per square second.193958Sfc1 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
1431 J/kg
Mixed-layer CIN
-224 J/kg
Mixed-layer LCL
1126 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
236 m²/s²
0-3 km storm-relative helicity
360 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

356 
WUUS53 KMPX 161311
SVRMPX
MNC041-161400-
/O.NEW.KMPX.SV.W.0070.180616T1311Z-180616T1400Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
811 AM CDT SAT JUN 16 2018

The National Weather Service in The Twin Cities has issued a

* Severe Thunderstorm Warning for...
  Douglas County in west central Minnesota...

* Until 900 AM CDT.

* At 811 AM CDT, a severe thunderstorm was located near Hoffman, or
  16 miles west of Alexandria, moving northeast at 35 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* This severe thunderstorm will be near...
  Evansville and Brandon around 825 AM CDT.

Other locations impacted by this severe thunderstorm include Miltona,
Holmes City, Garfield, Millerville, Melby and Leaf Valley.

This includes Interstate 94 in Minnesota between mile markers 81 and
100.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4610 9514 4576 9557 4585 9576 4606 9577
      4610 9576 4611 9514
TIME...MOT...LOC 1311Z 213DEG 31KT 4589 9570 

HAIL...1.00IN
WIND...60MPH
 
$$

BORGHOFF
2 follow-up statements
508 
WWUS53 KMPX 161327
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
827 AM CDT SAT JUN 16 2018

MNC041-161400-
/O.CON.KMPX.SV.W.0070.000000T0000Z-180616T1400Z/
Douglas MN-
827 AM CDT SAT JUN 16 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 AM CDT
FOR NORTHWESTERN DOUGLAS COUNTY...

At 826 AM CDT, a severe thunderstorm was located over Brandon, or 11
miles northwest of Alexandria, moving northeast at 30 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

This severe thunderstorm will remain over mainly rural areas of
northwestern Douglas County, including the following locations...
Miltona, Garfield, Millerville, Melby and Leaf Valley.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
The Twin Cities.

&&

LAT...LON 4583 9548 4594 9576 4606 9577 4610 9576
      4611 9514 4610 9514
TIME...MOT...LOC 1326Z 219DEG 28KT 4597 9558 

HAIL...1.00IN
WIND...60MPH
 
$$

BORGHOFF
482 
WWUS53 KMPX 161405
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
905 AM CDT SAT JUN 16 2018

MNC041-161415-
/O.EXP.KMPX.SV.W.0070.000000T0000Z-180616T1400Z/
Douglas MN-
905 AM CDT SAT JUN 16 2018

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN DOUGLAS COUNTY
HAS EXPIRED...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning has
been allowed to expire.  However small hail is still possible with
this thunderstorm.

LAT...LON 4583 9548 4594 9576 4606 9577 4610 9576
      4611 9514 4610 9514
TIME...MOT...LOC 1405Z 213DEG 31KT 4624 9532 

$$

BORGHOFF

The office that day

Everything else NWS Twin Cities, MN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 16, 3:26 AM CDTSpecial Weather StatementMPXFaribault34 min
Jun 16, 3:44 AM CDTSevere Thunderstorm WarningMPXBlue Earth, Faribault, Freeborn, Waseca31 min
Jun 16, 4:56 AM CDTSpecial Weather StatementMPXBlue Earth, Steele, Waseca64 min
Jun 16, 6:08 AM CDTSpecial Weather StatementMPXBlue Earth, Faribault, Le Sueur, Martin, Watonwan67 min
Jun 16, 6:11 AM CDTSpecial Weather StatementMPXGoodhue64 min
Jun 16, 8:05 AM CDTSpecial Weather StatementMPXCarver, Hennepin, Ramsey, Washington55 min
Jun 16, 10:30 AM CDTRiver Flood WarningMPXCarver6 days
Jun 16, 2:50 PM CDTFlash Flood WatchMPXBenton, Douglas, Kanabec, Mille Lacs, Morrison, Pope and 4 more12 hr

Nearby

Severe Thunderstorm Warnings in Minnesota, 2018Every severe thunderstorm warning in 2018

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.