Alert archive / Minnesota / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 21, NWS Duluth, MN

May 29, 2018Itasca County, Saint Louis County, Minnesota

NWS Duluth, MN issued this severe thunderstorm warning at May 29, 2018, 6:24 PM CDT for Itasca County, Saint Louis County, Minnesota. It was in force for 36 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: May 29, 2018, 6:24 PM CDT (23:24 UTC)
Expired: May 29, 2018, 7:00 PM CDT
In force: 36 min
Issued by: NWS Duluth, MN
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Itasca County, MN, Saint Louis County, MN

The radar

The Duluth radar (KDLH), 85 km from the middle of the area, began a volume at 23:26 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.

What was reported inside it

Time	Report	Where	Remark
May 29, 6:45 PM CDT	TSTM WND DMG	Buhl, MN	THREE TREES SNAPPED- UP TO 4 INCHES IN DIAMETER.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

International Fa, MN (KINL), launched 12:00Z, 11.4 hours before the alert went out and 125 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1592 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 201 m²/s²
0-3 km storm-relative helicity: 201 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

158 
WUUS53 KDLH 292324
SVRDLH
MNC061-137-300000-
/O.NEW.KDLH.SV.W.0021.180529T2324Z-180530T0000Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Duluth MN
624 PM CDT TUE MAY 29 2018

The National Weather Service in Duluth MN has issued a

* Severe Thunderstorm Warning for...
  East central Itasca County in north central Minnesota...
  Southwestern St. Louis County in northeastern Minnesota...

* Until 700 PM CDT

* At 624 PM CDT, severe thunderstorms were located along a line 
  extending from near Hibbing, to near Meadowlands, moving northeast 
  at 50 mph.

  HAZARD...60 mph wind gusts. 

  SOURCE...Radar indicated. 

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

* Locations impacted include...
  Hibbing, Virginia, Chisholm, Eveleth, Mountain Iron, Gilbert,
  Keewatin, Buhl, Nashwauk, Biwabik, Cherry, Toivola, Meadowlands,
  Makinen, Perch Lake, Franklin, Elmer, Swan Lake, Kinney, and 
  Kelsey. This also includes U.S. Highway 53 between Cotton and 
  Virginia, and U.S. Highway 169 between Keewatin and Virginia.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of 
a building. Get off area lakes immediately and seek shelter on shore 
inside a sturdy structure.

&&

LAT...LON 4781 9297 4768 9246 4738 9220 4700 9278
      4732 9320
TIME...MOT...LOC 2323Z 203DEG 45KT 4737 9299 4707 9278 

HAIL...<.75IN
WIND...60MPH
 
$$
 Miller

2 follow-up statements

079 
WWUS53 KDLH 292334
SVSDLH

Severe Weather Statement
National Weather Service Duluth MN
634 PM CDT TUE MAY 29 2018

MNC061-292343-
/O.CAN.KDLH.SV.W.0021.000000T0000Z-180530T0000Z/
Itasca MN-
634 PM CDT TUE MAY 29 2018

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL ITASCA COUNTY IS
CANCELLED...

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

LAT...LON 4768 9246 4738 9220 4711 9263 4746 9307
      4760 9306 4781 9297
TIME...MOT...LOC 2333Z 202DEG 50KT 4753 9300 4723 9260 

$$

MNC137-300000-
/O.CON.KDLH.SV.W.0021.000000T0000Z-180530T0000Z/
St. Louis MN-
634 PM CDT TUE MAY 29 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM CDT
FOR WEST CENTRAL ST. LOUIS COUNTY...

At 633 PM CDT, severe thunderstorms were located along a line
extending from 6 miles northwest of Chisholm, to 7 miles northwest of
Cotton, moving north at 55 mph.

HAZARD...60 mph wind gusts. 

SOURCE...Radar indicated. 

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

Locations impacted include...
Hibbing, Virginia, Chisholm, Eveleth, Mountain Iron, Gilbert, Buhl,
Biwabik, Cherry, Makinen, Perch Lake, Franklin, Kinney, Kelsey,
Mckinley, Iron Junction, Leonidas, Side Lake, Little Swan, and 
Murphy Lake. This also includes U.S. Highway 53 between Cotton and 
Virginia, and U.S. Highway 169 between Keewatin and Virginia.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of 
a building. Get off area lakes immediately and seek shelter on shore 
inside a sturdy structure.

&&

LAT...LON 4768 9246 4738 9220 4711 9263 4746 9307
      4760 9306 4781 9297
TIME...MOT...LOC 2333Z 202DEG 50KT 4753 9300 4723 9260 

HAIL...<.75IN
WIND...60MPH
 
$$
 Miller

552 
WWUS53 KDLH 292345
SVSDLH

Severe Weather Statement
National Weather Service Duluth MN
645 PM CDT TUE MAY 29 2018

MNC137-300000-
/O.CON.KDLH.SV.W.0021.000000T0000Z-180530T0000Z/
St. Louis MN-
645 PM CDT TUE MAY 29 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM CDT
FOR WEST CENTRAL ST. LOUIS COUNTY...

At 645 PM CDT, severe thunderstorms were located along a line 
extending from 10 miles south of Meadow Brook, to near Mountain 
Iron, to 11 miles southeast of Eveleth, moving northeast at 60 mph.

HAZARD...70 mph wind gusts. 

SOURCE...Radar indicated. 

IMPACT...Expect considerable tree damage. Damage is likely to mobile 
         homes, roofs, and outbuildings. 

Locations impacted include...
Hibbing, Virginia, Chisholm, Eveleth, Mountain Iron, Gilbert, Buhl,
Biwabik, Cherry, Makinen, Perch Lake, Franklin, Kinney, Mckinley,
Iron Junction, Leonidas, Side Lake, Esquagama Lake, Murphy Lake, and 
West Two Rivers Reservoir. This also includes U.S. Highway 53 
between Cotton and Virginia, and U.S. Highway 169 between Keewatin 
and Virginia.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4768 9246 4746 9228 4718 9252 4717 9253
      4752 9301 4765 9303 4781 9297
TIME...MOT...LOC 2344Z 208DEG 54KT 4772 9289 4757 9258 4733 9242 

HAIL...<.75IN
WIND...70MPH
 
$$
 Miller

The office that day

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

Issued	Product	Office	Counties	Lasted
May 28, 7:04 PM CDT	Special Weather Statement	DLH	Pine	26 min
May 28, 7:28 PM CDT	Special Weather Statement	DLH	Pine	32 min
May 28, 7:40 PM CDT	Severe Thunderstorm Warning	DLH	Aitkin, Crow Wing	24 min
May 28, 8:07 PM CDT	Special Weather Statement	DLH	Pine	8 min
May 29, 3:30 PM CDT	Severe Thunderstorm Warning	DLH	Cass	45 min
May 29, 3:34 PM CDT	Severe Thunderstorm Warning	DLH	Cass	26 min
May 29, 4:00 PM CDT	Severe Thunderstorm Warning	DLH	Cass, Itasca	45 min
May 29, 4:06 PM CDT	Severe Thunderstorm Warning	DLH	Pine	39 min
May 29, 4:15 PM CDT	Special Weather Statement	DLH	Cass, Crow Wing	15 min
May 29, 4:23 PM CDT	Severe Thunderstorm Warning	DLH	Cass	37 min
May 29, 4:36 PM CDT	Severe Thunderstorm Warning	DLH	Carlton, Pine	27 min
May 29, 4:40 PM CDT	Special Weather Statement	DLH	Crow Wing	20 min
May 29, 4:44 PM CDT	Severe Thunderstorm Warning	DLH	Pine	31 min
May 29, 4:53 PM CDT	Severe Thunderstorm Warning	DLH	Cass, Itasca	37 min
May 29, 5:01 PM CDT	Special Weather Statement	DLH	Aitkin	14 min
May 29, 5:23 PM CDT	Special Weather Statement	DLH	Carlton	37 min
May 29, 5:27 PM CDT	Special Weather Statement	DLH	Aitkin	18 min
May 29, 5:41 PM CDT	Special Weather Statement	DLH	Itasca	19 min
May 29, 5:49 PM CDT	Special Weather Statement	DLH	Aitkin	11 min
May 29, 5:59 PM CDT	Special Marine Warning	DLH		31 min
May 29, 6:03 PM CDT	Special Weather Statement	DLH	Itasca	12 min
May 29, 6:15 PM CDT	Special Weather Statement	DLH	Itasca	15 min
May 29, 6:31 PM CDT	Special Marine Warning	DLH		59 min
May 29, 6:32 PM CDT	Special Weather Statement	DLH	Lake	28 min
May 29, 6:40 PM CDT	Severe Thunderstorm Warning	DLH	Lake, Saint Louis	50 min
May 29, 6:50 PM CDT	Severe Thunderstorm Warning	DLH	Saint Louis	40 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2018 Every severe thunderstorm warning in 2018

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.