Alert archive / Minnesota / Tornado Warnings in 2018

Tornado Warning 10, NWS Sioux Falls, SD

June 24, 2018Murray County, Minnesota

NWS Sioux Falls, SD issued this tornado warning at Jun 24, 2018, 5:04 PM CDT for Murray County, Minnesota. It was in force for 26 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 24, 2018, 5:04 PM CDT (22:04 UTC)
Expired: Jun 24, 2018, 5:30 PM CDT
In force: 26 min
Issued by: NWS Sioux Falls, SD
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

County Murray County, MN

The radar

The Sioux Falls radar (KFSD), 91 km from the middle of the area, began a volume at 22:04 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, 10.1 hours before the alert went out and 197 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: 216 J/kg
Mixed-layer CIN: -34 J/kg
Mixed-layer LCL: 1065 m above ground
0-6 km bulk shear: 5 kt
0-1 km storm-relative helicity: -26 m²/s²
0-3 km storm-relative helicity: 61 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

724 
WFUS53 KFSD 242204
TORFSD
MNC101-242230-
/O.NEW.KFSD.TO.W.0010.180624T2204Z-180624T2230Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Sioux Falls SD
504 PM CDT SUN JUN 24 2018

The National Weather Service in Sioux Falls has issued a

* Tornado Warning for...
  Northern Murray County in southwestern Minnesota...

* Until 530 PM CDT.
    
* At 504 PM CDT, a severe thunderstorm capable of producing a tornado
  was located near Current Lake, or 9 miles northwest of Slayton,
  moving east at 15 mph.

  HAZARD...Tornado.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* This dangerous storm will be near...
  Lake Shetek State Park around 525 PM CDT.
  Currie around 530 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 4405 9605 4419 9597 4419 9555 4399 9560
TIME...MOT...LOC 2204Z 279DEG 15KT 4411 9583 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

Weisser

1 follow-up statement

170 
WWUS53 KFSD 242218
SVSFSD

Severe Weather Statement
National Weather Service Sioux Falls SD
518 PM CDT SUN JUN 24 2018

MNC101-242230-
/O.CON.KFSD.TO.W.0010.000000T0000Z-180624T2230Z/
Murray MN-
518 PM CDT SUN JUN 24 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 530 PM CDT FOR NORTHERN
MURRAY COUNTY...
    
At 518 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Lake Shetek State Park, or 8 miles north of Slayton,
moving east at 10 mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

This dangerous storm will be near...
  Currie and Lake Shetek State Park around 530 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 4405 9605 4419 9597 4419 9555 4399 9560
TIME...MOT...LOC 2218Z 281DEG 8KT 4411 9582 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

Weisser

The office that day

Everything else NWS Sioux Falls, SD issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 24, 4:54 AM CDT	River Flood Warning	FSD	Cottonwood, Jackson	28 days
Jun 24, 4:54 AM CDT	River Flood Warning	FSD	Lyon	4 days
Jun 24, 3:44 PM CDT	Tornado Warning	FSD	Lincoln, Lyon	31 min
Jun 24, 4:14 PM CDT	Severe Thunderstorm Warning	FSD	Lincoln, Lyon, Murray	28 min
Jun 24, 4:52 PM CDT	Flash Flood Warning Emergency	FSD	Jackson, Nobles	4 hr
Jun 24, 5:32 PM CDT	Tornado Warning	FSD	Murray	29 min
Jun 24, 5:54 PM CDT	Flash Flood Warning	FSD	Murray	3 hr

Nearby

Tornado Warnings in Minnesota, 2018 Every tornado warning in 2018 Tornadoes 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.