Alert archive / Minnesota / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 192, NWS Twin Cities, MN

September 2, 2019Chippewa County, Kandiyohi County, Swift County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Sep 2, 2019, 8:51 PM CDT for Chippewa County, Kandiyohi County, Swift County, Minnesota. It was in force for 39 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 2, 2019, 8:51 PM CDT (01:51 UTC)
Expired
Sep 2, 2019, 9:30 PM CDT
In force
39 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Hail
1.0 in
Wind
70.0 mph

Counties Chippewa County, MN, Kandiyohi County, MN, Swift County, MN

The radar

The Minneapolis radar (KMPX), 162 km from the middle of the area, began a volume at 01:54 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Sep 2, 6:57 PM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 1.9 hours before the alert went out and 159 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 2019-09-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 44 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 2019-09-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 187 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
44 J/kg
Mixed-layer CIN
-273 J/kg
Mixed-layer LCL
957 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
187 m²/s²
0-3 km storm-relative helicity
380 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.2

Open this sounding in Storm Lab

The text

As transmitted.

287 
WUUS53 KMPX 030151
SVRMPX
MNC023-067-151-030230-
/O.NEW.KMPX.SV.W.0192.190903T0151Z-190903T0230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
851 PM CDT Mon Sep 2 2019

The National Weather Service in The Twin Cities has issued a

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

* Until 930 PM CDT.

* At 850 PM CDT, severe thunderstorms were located along a line
  extending from 7 miles southwest of Murdock to near Watson, moving
  east at 50 mph.

  HAZARD...70 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect considerable 
           tree damage. Wind damage is also likely to mobile homes, 
           roofs, and outbuildings.

* Locations impacted include...
  Willmar, Clara City, Raymond, Watson, Pennock, Hagen, Big Bend
  City, Willmar Airport, Gluek and Priam.

This includes the following highways...
 U.S. Highway 12 between mile markers 64 and 76.
 U.S. Highway 71 between mile markers 122 and 127.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4516 9579 4517 9493 4489 9532 4501 9587
      4504 9589
TIME...MOT...LOC 0150Z 287DEG 45KT 4514 9550 4504 9572 

HAIL...1.00IN
WIND...70MPH
 
$$

LS
1 follow-up statement
768 
WWUS53 KMPX 030222
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
922 PM CDT Mon Sep 2 2019

MNC151-030232-
/O.CAN.KMPX.SV.W.0192.000000T0000Z-190903T0230Z/
Swift MN-
922 PM CDT Mon Sep 2 2019

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN SWIFT COUNTY IS
CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 200 AM CDT for
central and west central Minnesota.

LAT...LON 4515 9530 4517 9493 4489 9532 4493 9547
TIME...MOT...LOC 0222Z 287DEG 45KT 4503 9498 4493 9520 

$$

MNC023-067-030230-
/O.CON.KMPX.SV.W.0192.000000T0000Z-190903T0230Z/
Chippewa MN-Kandiyohi MN-
922 PM CDT Mon Sep 2 2019

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 930 PM CDT
FOR NORTHEASTERN CHIPPEWA AND WEST CENTRAL KANDIYOHI COUNTIES...

At 922 PM CDT, severe thunderstorms were located along a line
extending from 7 miles south of Willmar to Prinsburg, moving east at
50 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...
Willmar, Clara City, Raymond, Pennock, Willmar Airport and Priam. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4515 9530 4517 9493 4489 9532 4493 9547
TIME...MOT...LOC 0222Z 287DEG 45KT 4503 9498 4493 9520 

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

LS

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 2, 7:37 PM CDTSevere Thunderstorm WarningMPXDouglas, Pope, Stevens53 min
Sep 2, 8:01 PM CDTSpecial Weather StatementMPXTodd59 min
Sep 2, 8:20 PM CDTSevere Thunderstorm WarningMPXDouglas, Kandiyohi, Pope, Stearns, Stevens, Swift and 1 more55 min
Sep 2, 8:56 PM CDTSpecial Weather StatementMPXMorrison64 min
Sep 2, 9:08 PM CDTSevere Thunderstorm WarningMPXKandiyohi, McLeod, Meeker, Sherburne, Stearns, Wright52 min
Sep 2, 9:19 PM CDTTornado WarningMPXMeeker26 min
Sep 2, 9:28 PM CDTSpecial Weather StatementMPXBenton, Isanti, Kanabec, Mille Lacs62 min
Sep 2, 9:37 PM CDTSevere Thunderstorm WarningMPXBenton, Isanti, Kanabec, Mille Lacs, Sherburne38 min
Sep 2, 9:46 PM CDTSevere Thunderstorm WarningMPXAnoka, Carver, Hennepin, Isanti, McLeod, Ramsey and 3 more59 min
Sep 2, 10:09 PM CDTSpecial Weather StatementMPXChisago66 min
Sep 2, 10:13 PM CDTTornado WarningMPXHennepin19 min
Sep 2, 10:22 PM CDTSevere Thunderstorm WarningMPXDakota, Hennepin, Le Sueur, Ramsey, Rice, Scott and 1 more53 min
Sep 2, 10:44 PM CDTTornado WarningMPXLe Sueur, Rice31 min
Sep 2, 11:07 PM CDTSpecial Weather StatementMPXGoodhue, Rice53 min
Sep 2, 11:13 PM CDTSpecial Weather StatementMPXRice32 min
Sep 2, 11:48 PM CDTSpecial Weather StatementMPXSteele57 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2019Every severe thunderstorm warning in 2019

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.