Alert archive / Minnesota / Special Weather Statements in 2021

Special Weather Statement, NWS Twin Cities, MN

July 28, 2021Todd County, Minnesota

NWS Twin Cities, MN issued this special weather statement at Jul 28, 2021, 4:19 AM CDT for Todd 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: Jul 28, 2021, 4:19 AM CDT (09:19 UTC)
Expired: Jul 28, 2021, 4:45 AM CDT
In force: 26 min
Issued by: NWS Twin Cities, MN
Hail: 0.88 in
Wind: 30

County Todd County, MN

The radar

The Minneapolis radar (KMPX), 169 km from the middle of the area, began a volume at 09:22 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, 9.3 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: 4029 J/kg
Mixed-layer CIN: -9 J/kg
Mixed-layer LCL: 1142 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 5 m²/s²
0-3 km storm-relative helicity: 65 m²/s²
Significant tornado parameter: 0.7
Supercell composite: 6.6

Open this sounding in Storm Lab

The text

As transmitted.

705 
WWUS83 KMPX 280919
SPSMPX

Special Weather Statement
National Weather Service Twin Cities/Chanhassen MN
419 AM CDT Wed Jul 28 2021
 
MNZ041>043-049-280945-
Morrison MN-Stearns MN-Douglas MN-Todd MN-
419 AM CDT Wed Jul 28 2021

...A strong thunderstorm will impact portions of northeastern
Douglas, southern Todd, northwestern Stearns and western Morrison
Counties through 445 AM CDT...

At 418 AM CDT, Doppler radar was tracking a strong thunderstorm 9
miles north of Lake Osakis, or 15 miles northeast of Alexandria,
moving southeast at 40 mph.

HAZARD...Winds in excess of 30 mph and nickel 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 strong thunderstorm will be near...
  Long Prairie around 435 AM CDT.

Other locations in the path of this storm include Grey Eagle.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building. 

&&

LAT...LON 4590 9451 4564 9493 4606 9526 4611 9517
      4611 9515 4613 9515 4615 9511
TIME...MOT...LOC 0918Z 309DEG 35KT 4602 9510 

MAX HAIL SIZE...0.88 IN
MAX WIND GUST...30 MPH

$$

TDH

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 28, 4:13 AM CDT	Special Weather Statement	MPX	Pope, Stevens	32 min
Jul 28, 4:45 AM CDT	Special Weather Statement	MPX	Stearns	30 min
Jul 28, 4:46 AM CDT	Special Weather Statement	MPX	Chippewa, Pope, Stevens, Swift	44 min
Jul 28, 4:53 AM CDT	Severe Thunderstorm Warning	MPX	Pope, Stevens	28 min
Jul 28, 4:54 AM CDT	Severe Thunderstorm Warning	MPX	Stearns, Todd	36 min
Jul 28, 5:29 AM CDT	Severe Thunderstorm Warning	MPX	Kandiyohi, Meeker, Stearns	46 min
Jul 28, 6:17 AM CDT	Special Weather Statement	MPX	Meeker	28 min
Jul 28, 6:45 AM CDT	Special Weather Statement	MPX	Carver, Wright	30 min
Jul 28, 7:19 AM CDT	Special Weather Statement	MPX	Carver, Le Sueur, Nicollet	41 min
Jul 28, 11:43 AM CDT	Special Weather Statement	MPX	Chisago	32 min
Jul 28, 11:59 AM CDT	Severe Thunderstorm Warning	MPX	Chisago, Washington	31 min
Jul 28, 12:28 PM CDT	Special Weather Statement	MPX	Saint Croix	32 min
Jul 28, 12:54 PM CDT	Special Weather Statement	MPX	Pierce	36 min

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.