Alert archive / Minnesota / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 44, NWS Twin Cities, MN

May 28, 2017Morrison County, Todd County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at May 28, 2017, 6:31 PM CDT for Morrison County, Todd County, Minnesota. It was in force for 29 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
May 28, 2017, 6:31 PM CDT (23:31 UTC)
Expired
May 28, 2017, 7:00 PM CDT
In force
29 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Morrison County, MN, Todd County, MN

The radar

The Minneapolis radar (KMPX), 141 km from the middle of the area, began a volume at 23:34 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 12:00Z, 11.5 hours before the alert went out and 139 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 12:00Z on 2017-05-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 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, Minneapolis, MN at 12:00Z on 2017-05-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 49 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1182 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
49 m²/s²
0-3 km storm-relative helicity
110 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

931 
WUUS53 KMPX 282331
SVRMPX
MNC097-153-290000-
/O.NEW.KMPX.SV.W.0044.170528T2331Z-170529T0000Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
631 PM CDT SUN MAY 28 2017

The National Weather Service in The Twin Cities has issued a

* Severe Thunderstorm Warning for...
  Southeastern Todd County in central Minnesota...
  Southwestern Morrison County in central Minnesota...

* Until 700 PM CDT

* At 631 PM CDT, a severe thunderstorm was located near Long Prairie,
  or 20 miles west of Little Falls, moving southeast at 40 mph.

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

  SOURCE...Trained weather spotters. 

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

* Locations impacted include...
  Little Falls, Long Prairie, Upsala, Swanville, Grey Eagle, Bowlus,
  Flensburg, Little Sauk, Round Prairie, Sobieski, Burtrum and
  Elmdale.

This includes U.S. Highway 71 between mile markers 178 and 189.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4591 9435 4577 9443 4577 9471 4588 9499
      4606 9484
TIME...MOT...LOC 2331Z 298DEG 33KT 4595 9478 

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

ETA
1 follow-up statement
919 
WWUS53 KMPX 282353
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
653 PM CDT SUN MAY 28 2017

MNC153-290003-
/O.CAN.KMPX.SV.W.0044.000000T0000Z-170529T0000Z/
Todd MN-
653 PM CDT SUN MAY 28 2017

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN TODD COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

LAT...LON 4591 9435 4577 9443 4577 9465 4600 9464
TIME...MOT...LOC 2353Z 298DEG 33KT 4585 9452 

$$

MNC097-290000-
/O.CON.KMPX.SV.W.0044.000000T0000Z-170529T0000Z/
Morrison MN-
653 PM CDT SUN MAY 28 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM CDT
FOR SOUTHWESTERN MORRISON COUNTY...

At 653 PM CDT, a severe thunderstorm was located over Elmdale, or 11
miles southwest of Little Falls, moving southeast at 40 mph.

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

SOURCE...Trained weather spotters. 

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

Locations impacted include...
Little Falls, Upsala, Swanville, Bowlus, Flensburg, Sobieski and
Elmdale.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4591 9435 4577 9443 4577 9465 4600 9464
TIME...MOT...LOC 2353Z 298DEG 33KT 4585 9452 

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

ETA

The office that day

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

IssuedProductOfficeCountiesLasted
May 28, 4:13 PM CDTSpecial Weather StatementMPXChisago, Isanti47 min
May 28, 4:23 PM CDTSpecial Weather StatementMPXRamsey22 min
May 28, 5:47 PM CDTSpecial Weather StatementMPXChippewa, Douglas, Kandiyohi, Pope, Renville58 min
May 28, 6:07 PM CDTSpecial Weather StatementMPXKanabec53 min
May 28, 6:24 PM CDTSpecial Weather StatementMPXCarver36 min
May 28, 6:49 PM CDTSpecial Weather StatementMPXBenton, Stearns41 min
May 28, 6:52 PM CDTSpecial Weather StatementMPXBrown, McLeod, Meeker, Nicollet, Sibley38 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.