Alert archive / Minnesota / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 108, NWS Twin Cities, MN

August 3, 2018Meeker County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 3, 2018, 7:47 AM CDT for Meeker County, Minnesota. It was in force for 43 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: Aug 3, 2018, 7:47 AM CDT (12:47 UTC)
Expired: Aug 3, 2018, 8:30 AM CDT
In force: 43 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

County Meeker County, MN

The radar

The Minneapolis radar (KMPX), 74 km from the middle of the area, began a volume at 12:52 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, 0.8 hours before the alert went out and 71 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: 42 J/kg
Mixed-layer CIN: -626 J/kg
Mixed-layer LCL: 955 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 186 m²/s²
0-3 km storm-relative helicity: 260 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 4.6

Open this sounding in Storm Lab

The text

As transmitted.

376 
WUUS53 KMPX 031247
SVRMPX
MNC093-031330-
/O.NEW.KMPX.SV.W.0108.180803T1247Z-180803T1330Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
747 AM CDT FRI AUG 3 2018

The National Weather Service in The Twin Cities has issued a

* Severe Thunderstorm Warning for...
  East central Meeker County in central Minnesota...

* Until 830 AM CDT.

* At 747 AM CDT, a severe thunderstorm was located over Litchfield
  Airport, or 18 miles north of Hutchinson, moving east at 15 mph.

  HAZARD...Quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Damage to vehicles is expected.

* Locations impacted include...
  Litchfield, Dassel, Forest City, Darwin and Litchfield Airport. 

This includes U.S. Highway 12 between mile markers 96 and 114.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

Prepare immediately for large hail and deadly cloud to ground
lightning. Seek shelter inside a well-built structure. Stay away from
windows.

&&

LAT...LON 4524 9426 4500 9426 4507 9458 4521 9463
TIME...MOT...LOC 1247Z 263DEG 14KT 4514 9451 

HAIL...1.00IN
WIND...<50MPH
 
$$

DWE

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 3, 7:37 AM CDT	Special Weather Statement	MPX	Meeker	38 min
Aug 3, 8:12 AM CDT	Severe Thunderstorm Warning	MPX	Wright	48 min
Aug 3, 8:51 AM CDT	Special Weather Statement	MPX	Ramsey	24 min
Aug 3, 8:54 AM CDT	Special Weather Statement	MPX	Hennepin	36 min
Aug 3, 9:10 AM CDT	Severe Thunderstorm Warning	MPX	Dakota, Hennepin, Scott	35 min
Aug 3, 9:24 AM CDT	Special Weather Statement	MPX	Washington	36 min
Aug 3, 9:43 AM CDT	Severe Thunderstorm Warning	MPX	Dakota, Goodhue, Washington	32 min
Aug 3, 10:36 AM CDT	Special Weather Statement	MPX	Todd	24 min
Aug 3, 11:36 AM CDT	Special Weather Statement	MPX	Kanabec, Mille Lacs	24 min
Aug 3, 12:02 PM CDT	Special Weather Statement	MPX	Kanabec, Mille Lacs	28 min
Aug 3, 1:09 PM CDT	Special Weather Statement	MPX	Kanabec, Mille Lacs	51 min
Aug 3, 2:13 PM CDT	Special Weather Statement	MPX	Kanabec	32 min
Aug 3, 4:21 PM CDT	Special Weather Statement	MPX	Stevens	39 min
Aug 3, 4:32 PM CDT	Special Weather Statement	MPX	Lac qui Parle	43 min
Aug 3, 4:41 PM CDT	Severe Thunderstorm Warning	MPX	Lac qui Parle	49 min
Aug 3, 5:41 PM CDT	Special Weather Statement	MPX	Chippewa, Lac qui Parle, Pope, Swift, Yellow Medicine	34 min
Aug 3, 6:04 PM CDT	Severe Thunderstorm Warning	MPX	Kandiyohi, Pope, Stearns, Swift	41 min
Aug 3, 6:28 PM CDT	Severe Thunderstorm Warning	MPX	Kandiyohi, Meeker	47 min
Aug 3, 6:34 PM CDT	Tornado Warning	MPX	Kandiyohi, Meeker	26 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.