Alert archive / Minnesota / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 56, NWS Twin Cities, MN

July 28, 2021Kandiyohi County, Meeker County, Stearns County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 28, 2021, 5:29 AM CDT for Kandiyohi County, Meeker County, Stearns County, Minnesota. It was in force for 46 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, 5:29 AM CDT (10:29 UTC)
Expired
Jul 28, 2021, 6:15 AM CDT
In force
46 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Hail
1.25 in
Wind
60.0 mph

Counties Kandiyohi County, MN, Meeker County, MN, Stearns County, MN

The radar

The Minneapolis radar (KMPX), 124 km from the middle of the area, began a volume at 10:31 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, 10.5 hours before the alert went out and 122 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-pSkew-T log-p diagram, Minneapolis, MN at 00:00Z on 2021-07-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4029 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 00:00Z on 2021-07-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 5 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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.

555 
WUUS53 KMPX 281029
SVRMPX
MNC067-093-145-281115-
/O.NEW.KMPX.SV.W.0056.210728T1029Z-210728T1115Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
529 AM CDT Wed Jul 28 2021

The National Weather Service in the Twin Cities has issued a

* Severe Thunderstorm Warning for...
  Northwestern Meeker County in central Minnesota...
  Central Stearns County in central Minnesota...
  Northeastern Kandiyohi County in central Minnesota...

* Until 615 AM CDT.

* At 529 AM CDT, a severe thunderstorm was located near Melrose, or
  29 miles southeast of Alexandria, moving southeast at 35 mph.

  HAZARD...60 mph wind gusts and half dollar size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  Paynesville and Richmond.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4569 9498 4574 9481 4543 9429 4522 9490
TIME...MOT...LOC 1029Z 324DEG 29KT 4565 9488 

HAIL...1.25IN
WIND...60MPH
 
$$

TDH
2 follow-up statements
477 
WWUS53 KMPX 281047
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
547 AM CDT Wed Jul 28 2021

MNC067-093-145-281115-
/O.CON.KMPX.SV.W.0056.000000T0000Z-210728T1115Z/
Meeker MN-Stearns MN-Kandiyohi MN-
547 AM CDT Wed Jul 28 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 AM CDT
FOR NORTHWESTERN MEEKER...CENTRAL STEARNS AND NORTHEASTERN KANDIYOHI
COUNTIES...

At 547 AM CDT, a severe thunderstorm was located 9 miles northwest of
Richmond, or 24 miles west of St. Cloud, moving southeast at 35 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Cold Spring, Melrose, Rockville, Paynesville, Richmond, New London,
Freeport, Green Lake, Farming, Manannah, New Munich and Greenwald.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4569 9498 4569 9473 4543 9429 4522 9490
TIME...MOT...LOC 1047Z 313DEG 32KT 4551 9469 

HAIL...1.00IN
WIND...60MPH
 
$$

TDH
999 
WWUS53 KMPX 281106
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
606 AM CDT Wed Jul 28 2021

MNC067-093-145-281116-
/O.EXP.KMPX.SV.W.0056.000000T0000Z-210728T1115Z/
Meeker MN-Stearns MN-Kandiyohi MN-
606 AM CDT Wed Jul 28 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN MEEKER...CENTRAL
STEARNS AND NORTHEASTERN KANDIYOHI COUNTIES WILL EXPIRE AT 615 AM
CDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.  However small
hail, gusty winds and heavy rain are still possible with this
thunderstorm.

LAT...LON 4569 9498 4569 9473 4543 9429 4522 9490
TIME...MOT...LOC 1106Z 324DEG 29KT 4540 9458 

$$

TDH

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 28, 4:13 AM CDTSpecial Weather StatementMPXPope, Stevens32 min
Jul 28, 4:19 AM CDTSpecial Weather StatementMPXTodd26 min
Jul 28, 4:45 AM CDTSpecial Weather StatementMPXStearns30 min
Jul 28, 4:46 AM CDTSpecial Weather StatementMPXChippewa, Pope, Stevens, Swift44 min
Jul 28, 4:53 AM CDTSevere Thunderstorm WarningMPXPope, Stevens28 min
Jul 28, 4:54 AM CDTSevere Thunderstorm WarningMPXStearns, Todd36 min
Jul 28, 6:17 AM CDTSpecial Weather StatementMPXMeeker28 min
Jul 28, 6:45 AM CDTSpecial Weather StatementMPXCarver, Wright30 min
Jul 28, 7:19 AM CDTSpecial Weather StatementMPXCarver, Le Sueur, Nicollet41 min
Jul 28, 11:43 AM CDTSpecial Weather StatementMPXChisago32 min
Jul 28, 11:59 AM CDTSevere Thunderstorm WarningMPXChisago, Washington31 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2021Every severe thunderstorm warning 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.