Alert archive / Minnesota / Severe Thunderstorm Warnings in 2022

Severe Thunderstorm Warning 261, NWS Twin Cities, MN

September 8, 2022Chippewa County, Swift County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Sep 8, 2022, 11:55 PM CDT for Chippewa County, Swift County, Minnesota. It was in force for 35 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
Sep 8, 2022, 11:55 PM CDT (04:55 UTC)
Expired
Sep 9, 2022, 12:30 AM CDT
In force
35 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Hail
1.5 in
Wind
50.0 mph

Counties Chippewa County, MN, Swift County, MN

The radar

The Minneapolis radar (KMPX), 159 km from the middle of the area, began a volume at 04:58 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, 4.9 hours before the alert went out and 157 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 2022-09-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 761 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 2022-09-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 118 square meters per square second.193958Sfc1 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
761 J/kg
Mixed-layer CIN
-491 J/kg
Mixed-layer LCL
1514 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
118 m²/s²
0-3 km storm-relative helicity
231 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

303 
WUUS53 KMPX 090455
SVRMPX
MNC023-151-090530-
/O.NEW.KMPX.SV.W.0261.220909T0455Z-220909T0530Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
1155 PM CDT Thu Sep 8 2022

The National Weather Service in the Twin Cities has issued a

* Severe Thunderstorm Warning for...
  Northeastern Chippewa County in west central Minnesota...
  Southeastern Swift County in west central Minnesota...

* Until 1230 AM CDT.

* At 1155 PM CDT, a severe thunderstorm was located 8 miles northeast
  of Watson, or 8 miles north of Montevideo, moving east at 35 mph.

  HAZARD...Ping pong ball size hail.

  SOURCE...Radar indicated.

  IMPACT...People and animals outdoors will be injured. Expect 
           damage to roofs, siding, windows, and vehicles.

* This severe thunderstorm will remain over mainly rural areas of
  northeastern Chippewa and southeastern Swift Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4502 9570 4511 9571 4522 9540 4502 9531
TIME...MOT...LOC 0455Z 253DEG 30KT 4507 9566 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.50 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...<50 MPH

$$

ETA
2 follow-up statements
526 
WWUS53 KMPX 090515
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
1215 AM CDT Fri Sep 9 2022

MNC023-151-090530-
/O.CON.KMPX.SV.W.0261.000000T0000Z-220909T0530Z/
Chippewa MN-Swift MN-
1215 AM CDT Fri Sep 9 2022

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1230 AM CDT
FOR NORTHEASTERN CHIPPEWA AND SOUTHEASTERN SWIFT COUNTIES...

At 1215 AM CDT, a severe thunderstorm was located 7 miles southwest
of Kerkhoven, or 18 miles northeast of Montevideo, moving east at 35
mph.

HAZARD...Quarter size hail.

SOURCE...Radar indicated.

IMPACT...Damage to vehicles is expected.

This severe thunderstorm will remain over mainly rural areas of
northeastern Chippewa and southeastern Swift Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4503 9551 4515 9555 4522 9540 4505 9532
TIME...MOT...LOC 0515Z 253DEG 30KT 4512 9543 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...<50 MPH

$$

ETA
928 
WWUS53 KMPX 090520
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
1220 AM CDT Fri Sep 9 2022

MNC023-151-090530-
/O.EXP.KMPX.SV.W.0261.000000T0000Z-220909T0530Z/
Chippewa MN-Swift MN-
1220 AM CDT Fri Sep 9 2022

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN CHIPPEWA AND
SOUTHEASTERN SWIFT COUNTIES WILL EXPIRE AT 1230 AM CDT...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will
be allowed to expire.

LAT...LON 4503 9551 4515 9555 4522 9540 4505 9532
TIME...MOT...LOC 0520Z 253DEG 30KT 4513 9538 

$$

ETA

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 8, 10:20 PM CDTSpecial Weather StatementMPXLac qui Parle, Swift55 min
Sep 8, 10:46 PM CDTSevere Thunderstorm WarningMPXLac qui Parle29 min
Sep 8, 11:11 PM CDTSevere Thunderstorm WarningMPXLac qui Parle, Yellow Medicine30 min
Sep 8, 11:40 PM CDTSpecial Weather StatementMPXKandiyohi35 min
Sep 9, 12:27 AM CDTSevere Thunderstorm WarningMPXKandiyohi, Meeker, Stearns33 min
Sep 9, 12:42 AM CDTSpecial Weather StatementMPXKandiyohi48 min
Sep 9, 1:08 AM CDTSpecial Weather StatementMPXMeeker52 min
Sep 9, 1:59 AM CDTSpecial Weather StatementMPXSherburne, Wright46 min
Sep 9, 2:29 AM CDTSpecial Weather StatementMPXAnoka, Isanti46 min
Sep 9, 3:36 AM CDTSpecial Weather StatementMPXAnoka, Chisago, Isanti54 min
Sep 9, 4:05 AM CDTSevere Thunderstorm WarningMPXChisago, Isanti25 min
Sep 9, 4:28 AM CDTSpecial Weather StatementMPXChisago, Isanti32 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2022Every severe thunderstorm warning in 2022

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.