Alert archive / Minnesota / Special Weather Statements in 2021

Special Weather Statement, NWS Twin Cities, MN

October 9, 2021Lac qui Parle County, Yellow Medicine County, Minnesota

NWS Twin Cities, MN issued this special weather statement at Oct 9, 2021, 7:13 PM CDT for Lac qui Parle County, Yellow Medicine County, Minnesota. It was in force for 62 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: Oct 9, 2021, 7:13 PM CDT (00:13 UTC)
Expired: Oct 9, 2021, 8:15 PM CDT
In force: 62 min
Issued by: NWS Twin Cities, MN
Hail: 0.75 in
Wind: 55

Counties Lac qui Parle County, MN, Yellow Medicine County, MN

The radar

The Sioux Falls radar (KFSD), 162 km from the middle of the area, began a volume at 00:16 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 00:00Z, 0.2 hours before the alert went out and 180 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: 458 J/kg
Mixed-layer CIN: -239 J/kg
Mixed-layer LCL: 1239 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 247 m²/s²
0-3 km storm-relative helicity: 346 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

Open this sounding in Storm Lab

The text

As transmitted.

793 
WWUS83 KMPX 100013
SPSMPX

Special Weather Statement
National Weather Service Twin Cities/Chanhassen MN
713 PM CDT Sat Oct 9 2021
 
MNZ054-064-100115-
Yellow Medicine MN-Lac Qui Parle MN-
713 PM CDT Sat Oct 9 2021

...A strong thunderstorm will impact portions of Lac qui Parle and
Yellow Medicine Counties through 815 PM CDT...

At 712 PM CDT, Doppler radar was tracking a strong thunderstorm near
Bellingham, or 10 miles south of Ortonville, moving northeast at 50
mph.

HAZARD...Wind gusts of 50 to 55 mph and penny size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around 
         unsecured objects. Minor damage to outdoor objects is 
         possible.

This storm will remain over mainly rural areas of Lac qui Parle and
Yellow Medicine Counties, including the following locations...
Granite Falls Airport, Nassau, Providence, Big Stone National
Wildlife Refuge, Burr, St. Leo, Madison Airport, Hazel Run, Louisburg
and Spring Creek.

This includes the following highways...
 U.S. Highway 212 between mile markers 1 and 34, and between mile
markers 38 and 50.
 U.S. Highway 75 between mile markers 95 and 127.
 U.S. Highway 59 between mile markers 87 and 107.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building. 

A Severe Thunderstorm Watch remains in effect until 200 AM CDT for
central and west central Minnesota.

&&

LAT...LON 4526 9645 4525 9629 4522 9627 4516 9605
      4500 9583 4496 9582 4491 9568 4479 9550
      4478 9553 4470 9536 4455 9536 4455 9560
      4463 9563 4463 9645
TIME...MOT...LOC 0012Z 210DEG 44KT 4516 9636 

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...55 MPH

$$

CTG

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 9, 7:19 PM CDT	Severe Thunderstorm Warning	MPX	Stevens, Swift	41 min
Oct 9, 7:35 PM CDT	Severe Thunderstorm Warning	MPX	Lac qui Parle	25 min
Oct 9, 7:56 PM CDT	Severe Thunderstorm Warning	MPX	Stevens, Swift	49 min
Oct 9, 7:58 PM CDT	Severe Thunderstorm Warning	MPX	Lac qui Parle	47 min
Oct 9, 8:15 PM CDT	Severe Thunderstorm Warning	MPX	Douglas, Pope	45 min
Oct 9, 10:59 PM CDT	Special Weather Statement	MPX	Chippewa, Lac qui Parle, Pope, Swift, Todd, Yellow Medicine	3 hr

Nearby

Special Weather Statements in Minnesota, 2021 Every special weather statement in 2021

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.