Alert archive / Minnesota / Special Weather Statements in 2021

Special Weather Statement, NWS Twin Cities, MN

July 13, 2021Renville County, Minnesota

NWS Twin Cities, MN issued this special weather statement at Jul 13, 2021, 4:41 PM CDT for Renville County, Minnesota. It was in force for 34 min. 1 report 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: Jul 13, 2021, 4:41 PM CDT (21:41 UTC)
Expired: Jul 13, 2021, 5:15 PM CDT
In force: 34 min
Issued by: NWS Twin Cities, MN

County Renville County, MN

The radar

The Minneapolis radar (KMPX), 106 km from the middle of the area, began a volume at 21:42 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
Jul 13, 5:10 PM CDT	HAIL 1	1 Ne Franklin, MN	SOCIAL MEDIA PHOTO.

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

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 9.7 hours before the alert went out and 104 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1396 m above ground
0-6 km bulk shear: 0 kt
0-1 km storm-relative helicity: 0 m²/s²
0-3 km storm-relative helicity: 0 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

138 
WWUS83 KMPX 132141
SPSMPX

Special Weather Statement
National Weather Service Twin Cities/Chanhassen MN
441 PM CDT Tue Jul 13 2021

MNZ065-132215-
Renville-
441 PM CDT Tue Jul 13 2021

...A STRONG THUNDERSTORM WILL AFFECT SOUTHEASTERN RENVILLE COUNTY...

At 441 PM CDT, a strong thunderstorm was located near Franklin, or 13
miles east of Redwood Falls, moving east at 25 mph.

Winds in excess of 40 mph and pea size hail are possible with this
storm.

Locations impacted include...
Fairfax and Franklin. 

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

LAT...LON 4446 9479 4447 9481 4449 9482 4449 9486
      4452 9488 4453 9495 4454 9497 4466 9493
      4462 9463 4445 9464
TIME...MOT...LOC 2141Z 286DEG 23KT 4459 9485 

$$

JLT

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 13, 5:15 PM CDT	Special Weather Statement	MPX	Brown	45 min
Jul 13, 5:33 PM CDT	Special Weather Statement	MPX	Brown	42 min
Jul 13, 5:38 PM CDT	Severe Thunderstorm Warning	MPX	Brown, Redwood, Renville	39 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.