Alert archive / Minnesota / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 91, NWS Twin Cities, MN

July 14, 2019Morrison County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 14, 2019, 6:57 PM CDT for Morrison County, Minnesota. It was in force for 63 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
Jul 14, 2019, 6:57 PM CDT (23:57 UTC)
Expired
Jul 14, 2019, 8:00 PM CDT
In force
63 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Hail
1.25 in
Wind
50.0 mph

County Morrison County, MN

The radar

The Minneapolis radar (KMPX), 162 km from the middle of the area, began a volume at 23:59 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

TimeReportWhereRemark
Jul 14, 7:30 PM CDTTSTM WND GST 731 Nw Pierz, MNSPOTTER REPORTS WIND GUST OF 73MPH AT APPROXIMATELY 7:30PM.

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

The watch it was issued in

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

IssuedProductOfficeLasted
Jul 14, 3:39 PM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 12.0 hours before the alert went out and 161 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 2019-07-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 641 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 12:00Z on 2019-07-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 72 square meters per square second.1939Sfc1 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
641 J/kg
Mixed-layer CIN
-72 J/kg
Mixed-layer LCL
957 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
72 m²/s²
0-3 km storm-relative helicity
139 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.3

Open this sounding in Storm Lab

The text

As transmitted.

199 
WUUS53 KMPX 142357
SVRMPX
MNC097-150100-
/O.NEW.KMPX.SV.W.0091.190714T2357Z-190715T0100Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
657 PM CDT Sun Jul 14 2019

The National Weather Service in The Twin Cities has issued a

* Severe Thunderstorm Warning for...
  Central Morrison County in central Minnesota...

* Until 800 PM CDT.

* At 657 PM CDT, severe thunderstorms were located along a line
  extending from 7 miles south of Pillager to 6 miles northeast of
  Little Falls, moving east at 20 mph.

  HAZARD...Half dollar size hail.

  SOURCE...Radar indicated.

  IMPACT...Damage to vehicles is expected.

* Locations impacted include...
  Little Falls, Pierz, Randall, Lastrup, Camp Ripley, Cushing,
  Harding, Genola, Hillman, Little Falls Airport, Camp Ripley
  Junction and Crow Wing State Park.

This includes U.S. Highway 10 in Minnesota between mile markers 127
and 147.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

Prepare immediately for large hail and deadly cloud to ground
lightning. Seek shelter inside a well-built structure. Stay away from
windows.

&&

LAT...LON 4630 9436 4627 9434 4623 9440 4618 9437
      4616 9437 4616 9395 4596 9378 4595 9443
      4608 9461 4633 9464 4631 9451 4633 9443
TIME...MOT...LOC 2357Z 272DEG 15KT 4623 9453 4602 9424 

HAIL...1.25IN
WIND...<50MPH
 
$$

JPC
4 follow-up statements
464 
WWUS53 KMPX 150017
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
717 PM CDT Sun Jul 14 2019

MNC097-150100-
/O.CON.KMPX.SV.W.0091.000000T0000Z-190715T0100Z/
Morrison MN-
717 PM CDT Sun Jul 14 2019

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 PM CDT
FOR CENTRAL MORRISON COUNTY...

At 717 PM CDT, severe thunderstorms were located along a line
extending from near Fort Ripley to near Pierz, moving east at 15 mph.

HAZARD...Half dollar size hail.

SOURCE...Radar indicated.

IMPACT...Damage to vehicles is expected.

Locations impacted include...
Little Falls, Pierz, Randall, Lastrup, Camp Ripley, Harding, Genola,
Hillman, Little Falls Airport, Camp Ripley Junction and Crow Wing
State Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Prepare immediately for large hail and deadly cloud to ground
lightning. Seek shelter inside a well-built structure. Stay away from
windows.

To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
The Twin Cities.

Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4630 9436 4627 9434 4623 9440 4618 9437
      4616 9437 4616 9395 4596 9378 4595 9443
      4600 9449 4631 9451 4633 9443
TIME...MOT...LOC 0017Z 272DEG 15KT 4623 9441 4602 9412 

HAIL...1.25IN
WIND...<50MPH
 
$$

JPC
269 
WWUS53 KMPX 150033
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
733 PM CDT Sun Jul 14 2019

MNC097-150100-
/O.CON.KMPX.SV.W.0091.000000T0000Z-190715T0100Z/
Morrison MN-
733 PM CDT Sun Jul 14 2019

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 PM CDT
FOR CENTRAL MORRISON COUNTY...

At 733 PM CDT, severe thunderstorms were located along a line
extending from near Little Falls to near Lastrup, moving east at 20
mph.

HAZARD...60 mph wind gusts and half dollar size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Little Falls, Pierz, Lastrup, Harding, Genola, Hillman, Little Falls
Airport and Camp Ripley Junction.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
The Twin Cities.

Continuous cloud to ground lightning is occurring with these storms.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4616 9395 4596 9378 4595 9443 4598 9447
      4616 9424
TIME...MOT...LOC 0033Z 288DEG 16KT 4594 9432 4611 9404 

HAIL...1.25IN
WIND...60MPH
 
$$

JPC
167 
WWUS53 KMPX 150050
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
750 PM CDT Sun Jul 14 2019

MNC097-150100-
/O.CON.KMPX.SV.W.0091.000000T0000Z-190715T0100Z/
Morrison MN-
750 PM CDT Sun Jul 14 2019

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 PM CDT
FOR EAST CENTRAL MORRISON COUNTY...

At 750 PM CDT, severe thunderstorms were located along a line
extending from near Pierz to 8 miles northeast of Lastrup, moving
east at 25 mph.

HAZARD...60 mph wind gusts and half dollar size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Pierz, Lastrup, Harding, Genola and Hillman. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
The Twin Cities.

Continuous cloud to ground lightning is occurring with these storms.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4616 9395 4596 9378 4595 9426 4616 9402
TIME...MOT...LOC 0050Z 279DEG 21KT 4591 9412 4610 9392 

HAIL...1.25IN
WIND...60MPH
 
$$

JPC
635 
WWUS53 KMPX 150058
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
758 PM CDT Sun Jul 14 2019

MNC097-150108-
/O.EXP.KMPX.SV.W.0091.000000T0000Z-190715T0100Z/
Morrison MN-
758 PM CDT Sun Jul 14 2019

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL MORRISON COUNTY
WILL EXPIRE AT 800 PM CDT...
            
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning will be allowed to expire.

A Severe Thunderstorm Watch remains in effect until midnight CDT for
central and east central Minnesota.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
The Twin Cities.

LAT...LON 4616 9395 4596 9378 4595 9426 4616 9402
TIME...MOT...LOC 0058Z 272DEG 15KT 4591 9407 4610 9387 

$$

JPC

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 14, 3:19 AM CDTHeat AdvisoryMPXAnoka, Carver, Dakota, Hennepin, Ramsey, Scott and 1 more40 hr
Jul 14, 4:03 PM CDTSpecial Weather StatementMPXLac qui Parle42 min
Jul 14, 5:22 PM CDTSpecial Weather StatementMPXMorrison38 min
Jul 14, 5:41 PM CDTSpecial Weather StatementMPXTodd49 min
Jul 14, 5:59 PM CDTSpecial Weather StatementMPXMorrison61 min
Jul 14, 6:16 PM CDTSevere Thunderstorm WarningMPXMorrison44 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.