Alert archive / Minnesota / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 72, NWS Twin Cities, MN

June 16, 2018Morrison County, Todd County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 16, 2018, 11:37 PM CDT for Morrison County, Todd County, Minnesota. It was in force for 23 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jun 16, 2018, 11:37 PM CDT (04:37 UTC)
Expired: Jun 17, 2018, 12:00 AM CDT
In force: 23 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Morrison County, MN, Todd County, MN

The radar

The Minneapolis radar (KMPX), 168 km from the middle of the area, began a volume at 04:35 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 16, 3:38 PM CDT	Tornado Watch	SPC	8 hr
Jun 16, 9:47 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 4.6 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-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: 4001 J/kg
Mixed-layer CIN: -22 J/kg
Mixed-layer LCL: 1122 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 201 m²/s²
0-3 km storm-relative helicity: 519 m²/s²
Significant tornado parameter: 6.0
Supercell composite: 44.2

Open this sounding in Storm Lab

The text

As transmitted.

439 
WUUS53 KMPX 170437
SVRMPX
MNC097-153-170500-
/O.NEW.KMPX.SV.W.0072.180617T0437Z-180617T0500Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
1137 PM CDT SAT JUN 16 2018

The National Weather Service in The Twin Cities has issued a

* Severe Thunderstorm Warning for...
  Eastern Todd County in central Minnesota...
  Northwestern Morrison County in central Minnesota...

* Until midnight CDT.

* At 1136 PM CDT, a severe thunderstorm was located 7 miles southeast
  of Browerville, or 17 miles west of Little Falls, moving northeast
  at 40 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Little Falls, Long Prairie, Browerville, Clarissa, Motley, Randall,
  Swanville, Flensburg, Camp Ripley, Cushing, Burtrum and Camp Ripley
  Junction.

This includes the following highways...
 U.S. Highway 10 in Minnesota between mile markers 116 and 142.
 U.S. Highway 71 between mile markers 187 and 199.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4631 9455 4631 9451 4633 9443 4629 9435
      4627 9434 4623 9440 4618 9437 4616 9437
      4616 9400 4585 9474 4611 9499 4634 9464
TIME...MOT...LOC 0436Z 241DEG 36KT 4604 9472 

HAIL...<.75IN
WIND...60MPH
 
$$

AMK

2 follow-up statements

757 
WWUS53 KMPX 170449
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
1149 PM CDT SAT JUN 16 2018

MNC097-153-170500-
/O.CON.KMPX.SV.W.0072.000000T0000Z-180617T0500Z/
Todd MN-Morrison MN-
1149 PM CDT SAT JUN 16 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CDT
FOR EASTERN TODD AND NORTHWESTERN MORRISON COUNTIES...

At 1149 PM CDT, a severe thunderstorm was located over Randall, or 12
miles northwest of Little Falls, moving northeast at 40 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Little Falls, Long Prairie, Motley, Randall, Swanville, Flensburg,
Camp Ripley, Cushing, Burtrum, Philbrook, Camp Ripley Junction and
Crow Wing State Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4631 9455 4631 9451 4633 9443 4629 9435
      4627 9434 4623 9440 4618 9437 4616 9437
      4616 9400 4585 9474 4600 9488 4626 9476
      4634 9464
TIME...MOT...LOC 0449Z 241DEG 36KT 4610 9455 

HAIL...<.75IN
WIND...60MPH
 
$$

AMK

894 
WWUS53 KMPX 170456
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
1156 PM CDT SAT JUN 16 2018

MNC097-153-170506-
/O.EXP.KMPX.SV.W.0072.000000T0000Z-180617T0500Z/
Todd MN-Morrison MN-
1156 PM CDT SAT JUN 16 2018

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN TODD AND NORTHWESTERN
MORRISON COUNTIES WILL EXPIRE AT MIDNIGHT CDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.  However gusty
winds are still possible with this thunderstorm.

A Severe Thunderstorm Watch remains in effect until 500 AM CDT for
central Minnesota.

LAT...LON 4631 9455 4631 9451 4633 9443 4629 9435
      4627 9434 4623 9440 4618 9437 4616 9437
      4616 9400 4585 9474 4600 9488 4626 9476
      4634 9464
TIME...MOT...LOC 0456Z 241DEG 36KT 4613 9448 

$$

AMK

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 16, 7:16 PM CDT	Special Weather Statement	MPX	Lac qui Parle	44 min
Jun 16, 8:48 PM CDT	Special Weather Statement	MPX	Chippewa, Kandiyohi, Pope	27 min
Jun 16, 9:23 PM CDT	Special Weather Statement	MPX	Stearns	37 min
Jun 16, 10:02 PM CDT	Special Weather Statement	MPX	Douglas	58 min
Jun 16, 10:12 PM CDT	Severe Thunderstorm Warning	MPX	Pope, Stearns	33 min
Jun 16, 10:29 PM CDT	Special Weather Statement	MPX	Stevens	31 min
Jun 16, 10:54 PM CDT	Special Weather Statement	MPX	Todd	36 min
Jun 16, 11:16 PM CDT	Special Weather Statement	MPX	Pope, Todd	29 min
Jun 17, 12:22 PM CDT	Severe Thunderstorm Warning	MPX	Morrison, Todd	38 min
Jun 17, 1:37 PM CDT	Special Weather Statement	MPX	Mille Lacs	8 min
Jun 17, 1:47 PM CDT	Special Weather Statement	MPX	Mille Lacs	43 min
Jun 17, 2:25 PM CDT	Tornado Warning	MPX	Kanabec	35 min
Jun 17, 2:44 PM CDT	Flash Flood Watch	MPX	Anoka, Chisago, Dakota, Goodhue, Hennepin, Isanti and 6 more	16 hr
Jun 17, 6:59 PM CDT	Special Weather Statement	MPX	Scott	31 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2018 Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.