Alert archive / Minnesota / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 192, NWS Twin Cities, MN

September 19, 2017Lac qui Parle County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Sep 19, 2017, 10:55 PM CDT for Lac qui Parle County, Minnesota. It was in force for 50 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 19, 2017, 10:55 PM CDT (03:55 UTC)
Expired
Sep 19, 2017, 11:45 PM CDT
In force
50 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Lac qui Parle County, MN

The radar

The Aberdeen radar (KABR), 172 km from the middle of the area, began a volume at 03:54 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 19, 10:36 PM CDTSevere Thunderstorm WatchSPC4 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 3.9 hours before the alert went out and 169 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, Aberdeen, SD at 00:00Z on 2017-09-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2563 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Aberdeen, SD at 00:00Z on 2017-09-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 229 square meters per square second.1939587897Sfc1 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
2563 J/kg
Mixed-layer CIN
-16 J/kg
Mixed-layer LCL
1127 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
229 m²/s²
0-3 km storm-relative helicity
239 m²/s²
Significant tornado parameter
2.6
Supercell composite
16.8

Open this sounding in Storm Lab

The text

As transmitted.

775 
WUUS53 KMPX 200355
SVRMPX
MNC073-200445-
/O.NEW.KMPX.SV.W.0192.170920T0355Z-170920T0445Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
1055 PM CDT TUE SEP 19 2017

The National Weather Service in The Twin Cities has issued a

* Severe Thunderstorm Warning for...
  Lac qui Parle County in west central Minnesota...

* Until 1145 PM CDT

* At 1054 PM CDT, severe thunderstorms were located along a line
  extending from near Twin Brooks to near Tunerville to near
  Estelline, moving northeast at 55 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. 

* Severe thunderstorms will be near,
  Marietta around 1110 PM CDT. 
  Bellingham around 1120 PM CDT. 
  Madison around 1140 PM CDT. 

Other locations impacted by these severe thunderstorms include 
Louisburg, Nassau, Big Stone National Wildlife Refuge, and Florida 
Creek Wildlife Management Area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4527 9645 4525 9629 4522 9627 4522 9622
      4519 9617 4519 9612 4516 9608 4480 9616
      4480 9633 4481 9645
TIME...MOT...LOC 0354Z 232DEG 49KT 4515 9670 4494 9671 4459 9685 

HAIL...1.00IN
WIND...60MPH
 
$$
1 follow-up statement
137 
WWUS53 KMPX 200426
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
1126 PM CDT TUE SEP 19 2017

MNC073-200445-
/O.CON.KMPX.SV.W.0192.000000T0000Z-170920T0445Z/
Lac qui Parle MN-
1126 PM CDT TUE SEP 19 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1145 PM CDT
FOR LAC QUI PARLE COUNTY...

At 1126 PM CDT, severe thunderstorms were located along a line
extending from near Artichoke to near Louisburg to near Gary, moving
northeast at 55 mph.

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

SOURCE...Radar indicated. 

IMPACT...Expect damage to roofs, siding, and trees. 

These severe storms will be near...
  Madison around 1145 PM CDT. 

Other locations impacted by these severe thunderstorms include 
Louisburg, Nassau, Big Stone National Wildlife Refuge, and Florida 
Creek Wildlife Management Area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4525 9629 4522 9627 4522 9622 4519 9617
      4519 9612 4516 9608 4480 9616 4480 9633
      4481 9645 4521 9645 4526 9640
TIME...MOT...LOC 0426Z 231DEG 49KT 4541 9623 4520 9624 4486 9646 

HAIL...0.75IN
WIND...60MPH
 
$$

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 19, 11:24 PM CDTSevere Thunderstorm WarningMPXStevens, Swift36 min
Sep 19, 11:42 PM CDTSpecial Weather StatementMPXLac qui Parle, Yellow Medicine48 min
Sep 19, 11:50 PM CDTSevere Thunderstorm WarningMPXDouglas, Pope, Stevens55 min
Sep 20, 12:03 AM CDTSpecial Weather StatementMPXSwift57 min
Sep 20, 12:06 AM CDTSpecial Weather StatementMPXMeeker24 min
Sep 20, 12:16 AM CDTSpecial Weather StatementMPXChippewa, Yellow Medicine44 min
Sep 20, 12:24 AM CDTSevere Thunderstorm WarningMPXSwift21 min
Sep 20, 12:42 AM CDTSevere Thunderstorm WarningMPXKandiyohi, Pope, Stearns, Todd33 min
Sep 20, 12:45 AM CDTSpecial Weather StatementMPXBenton, Morrison45 min
Sep 20, 12:51 AM CDTSpecial Weather StatementMPXKandiyohi, Meeker, Renville39 min
Sep 20, 12:55 AM CDTSpecial Weather StatementMPXBrown, Redwood35 min
Sep 20, 1:02 AM CDTSevere Thunderstorm WarningMPXKandiyohi, Meeker, Renville43 min
Sep 20, 1:11 AM CDTSevere Thunderstorm WarningMPXBenton, Morrison, Sherburne, Stearns49 min
Sep 20, 1:15 AM CDTSevere Thunderstorm WarningMPXBrown, Nicollet, Redwood, Renville, Sibley30 min
Sep 20, 1:37 AM CDTSevere Thunderstorm WarningMPXMeeker, Sherburne, Stearns, Wright38 min
Sep 20, 1:41 AM CDTSevere Thunderstorm WarningMPXMcLeod, Renville, Sibley34 min
Sep 20, 1:49 AM CDTSevere Thunderstorm WarningMPXBenton, Kanabec, Mille Lacs, Morrison56 min
Sep 20, 2:00 AM CDTSevere Thunderstorm WarningMPXBenton, Isanti, Mille Lacs, Sherburne45 min
Sep 20, 2:12 AM CDTSpecial Weather StatementMPXAnoka, Hennepin, Wright48 min
Sep 20, 2:36 AM CDTSpecial Weather StatementMPXHennepin, Ramsey, Washington69 min
Sep 20, 2:57 AM CDTSpecial Weather StatementMPXChisago33 min
Sep 20, 3:04 AM CDTSevere Thunderstorm WarningMPXChisago26 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2017Every severe thunderstorm warning in 2017

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.