Alert archive / Minnesota / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 81, NWS Twin Cities, MN

June 30, 2018Stearns County, Todd County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 30, 2018, 12:43 AM CDT for Stearns County, Todd County, Minnesota. It was in force for 47 min. 2 reports 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 30, 2018, 12:43 AM CDT (05:43 UTC)
Expired: Jun 30, 2018, 1:30 AM CDT
In force: 47 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Tornado: Possible
Hail: 1.0 in
Wind: 70.0 mph

Counties Stearns County, MN, Todd County, MN

The radar

The Minneapolis radar (KMPX), 163 km from the middle of the area, began a volume at 05:44 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

Time	Report	Where	Remark
Jun 30, 12:55 AM CDT	TSTM WND DMG	3 Ene Osakis, MN	TREE BLOWN DOWN ON POWER LINE.
Jun 30, 1:10 AM CDT	TSTM WND DMG	3 Nw Burtrum, MN	TREE BLOWN DOWN ONTO POWER LINE.

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

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 29, 11:56 PM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 5.7 hours before the alert went out and 162 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: 3333 J/kg
Mixed-layer CIN: -83 J/kg
Mixed-layer LCL: 1867 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 142 m²/s²
0-3 km storm-relative helicity: 233 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

366 
WUUS53 KMPX 300543
SVRMPX
MNC145-153-300630-
/O.NEW.KMPX.SV.W.0081.180630T0543Z-180630T0630Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
1243 AM CDT SAT JUN 30 2018

The National Weather Service in The Twin Cities has issued a

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

* Until 130 AM CDT.

* At 1243 AM CDT, severe thunderstorms were located along a line
  extending from Clarissa to near Round Prairie to near Westport,
  moving east at 35 mph.

  HAZARD...70 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect considerable 
           tree damage. Wind damage is also likely to mobile homes, 
           roofs, and outbuildings.

* Locations impacted include...
  Sauk Centre, Melrose, Long Prairie, Browerville, Clarissa, Eagle
  Bend, Grey Eagle, Lake Osakis, Little Sauk, Round Prairie, Burtrum
  and West Union.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4628 9464 4578 9465 4568 9482 4570 9514
      4616 9514 4632 9466
TIME...MOT...LOC 0543Z 252DEG 29KT 4613 9498 4592 9496 4569 9520 

TORNADO...POSSIBLE
HAIL...1.00IN
WIND...70MPH
 
$$

1 follow-up statement

107 
WWUS53 KMPX 300611
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
111 AM CDT SAT JUN 30 2018

MNC145-153-300630-
/O.CON.KMPX.SV.W.0081.000000T0000Z-180630T0630Z/
Todd MN-Stearns MN-
111 AM CDT SAT JUN 30 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 130 AM CDT
FOR EASTERN TODD AND NORTHWESTERN STEARNS COUNTIES...

At 111 AM CDT, severe thunderstorms were located along a line
extending from 6 miles west of Cushing to near Swanville to near Sauk
Centre, moving east at 35 mph.

HAZARD...Ping pong ball size hail and 60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect wind 
         damage to roofs, siding, and trees.

Locations impacted include...
Sauk Centre, Melrose, Long Prairie, Browerville, Grey Eagle, Little
Sauk, Round Prairie, Burtrum, Pleasant Beach, Philbrook, Long Prairie
Airport and Sauk Centre Airport.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4628 9464 4578 9465 4568 9482 4570 9514
      4595 9498 4625 9487 4632 9466
TIME...MOT...LOC 0611Z 270DEG 29KT 4620 9469 4599 9467 4576 9491 

TORNADO...POSSIBLE
HAIL...1.50IN
WIND...60MPH
 
$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 29, 11:25 PM CDT	Special Weather Statement	MPX	Todd	50 min
Jun 29, 11:58 PM CDT	Severe Thunderstorm Warning	MPX	Todd	47 min
Jun 30, 12:05 AM CDT	Severe Thunderstorm Warning	MPX	Douglas, Pope	55 min
Jun 30, 12:18 AM CDT	Severe Thunderstorm Warning	MPX	Todd	42 min
Jun 30, 1:00 AM CDT	Special Weather Statement	MPX	Morrison	45 min
Jun 30, 1:06 AM CDT	Severe Thunderstorm Warning	MPX	Morrison	39 min
Jun 30, 1:29 AM CDT	Severe Thunderstorm Warning	MPX	Morrison, Stearns, Todd	46 min
Jun 30, 2:02 AM CDT	Severe Thunderstorm Warning	MPX	Benton, Mille Lacs, Morrison, Stearns	43 min
Jun 30, 2:27 AM CDT	Severe Thunderstorm Warning	MPX	Kanabec, Mille Lacs	33 min
Jun 30, 2:51 AM CDT	Flash Flood Watch	MPX	Faribault, Freeborn, Martin	18 hr
Jun 30, 2:54 AM CDT	Heat Advisory	MPX	Goodhue	16 hr
Jun 30, 5:25 PM CDT	Special Weather Statement	MPX	Freeborn	50 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.