Alert archive / Minnesota / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 69, NWS Twin Cities, MN

July 17, 20204 counties in Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 17, 2020, 11:58 PM CDT for 4 counties in Minnesota. It was in force for 77 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 17, 2020, 11:58 PM CDT (04:58 UTC)
Expired: Jul 18, 2020, 1:15 AM CDT
In force: 77 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Tornado: Possible
Hail: 0.75 in
Wind: 60.0 mph

Counties Benton County, MN, Kandiyohi County, MN, Morrison County, MN, Stearns County, MN

The radar

The Minneapolis radar (KMPX), 109 km from the middle of the area, began a volume at 04:59 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

Time	Report	Where	Remark
Jul 18, 1:15 AM CDT	TSTM WND GST 52	4 Ese Belgrade, MN	MESONET STATION MN043 BELGRADE 3ESE.

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.

Issued	Product	Office	Lasted
Jul 17, 5:39 PM CDT	Severe Thunderstorm Watch PDS	SPC	8 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 5.0 hours before the alert went out and 108 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: 1995 J/kg
Mixed-layer CIN: -87 J/kg
Mixed-layer LCL: 1267 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 35 m²/s²
0-3 km storm-relative helicity: 218 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 5.8

Open this sounding in Storm Lab

The text

As transmitted.

692 
WUUS53 KMPX 180458
SVRMPX
MNC009-067-097-145-180615-
/O.NEW.KMPX.SV.W.0069.200718T0458Z-200718T0615Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
1158 PM CDT Fri Jul 17 2020

The National Weather Service in The Twin Cities has issued a

* Severe Thunderstorm Warning for...
  Benton County in central Minnesota...
  Stearns County in central Minnesota...
  Southeastern Morrison County in central Minnesota...
  Northern Kandiyohi County in central Minnesota...

* Until 115 AM CDT.

* At 1158 PM CDT, severe thunderstorms were located along a line
  extending from near Royalton to near Melrose to near Brooten,
  moving southeast at 25 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Severe thunderstorms will be near...
  Royalton around 1205 AM CDT.
  St. Anthony and Freeport around 1215 AM CDT.
  Rice around 1220 AM CDT.
  Albany around 1225 AM CDT.
  Sauk Rapids, Paynesville and New London around 1250 AM CDT.
  St. Cloud and Cold Spring around 100 AM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.

&&

LAT...LON 4598 9381 4598 9377 4565 9376 4555 9405
      4556 9414 4553 9415 4533 9476 4514 9525
      4541 9525 4542 9513 4562 9514 4577 9465
      4606 9381
TIME...MOT...LOC 0458Z 320DEG 20KT 4588 9426 4573 9477 4554 9512 

TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
 
$$

BORGHOFF

2 follow-up statements

426 
WWUS53 KMPX 180519
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
1219 AM CDT Sat Jul 18 2020

MNC009-067-097-145-180615-
/O.CON.KMPX.SV.W.0069.000000T0000Z-200718T0615Z/
Benton MN-Stearns MN-Morrison MN-Kandiyohi MN-
1219 AM CDT Sat Jul 18 2020

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 115 AM CDT
FOR BENTON...CENTRAL STEARNS...SOUTHEASTERN MORRISON AND NORTHERN
KANDIYOHI COUNTIES...

At 1218 AM CDT, severe thunderstorms were located along a line
extending from 7 miles east of Rice to near Albany to near Brooten,
moving southeast at 35 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

These severe storms will be near...
  Sauk Rapids, Foley and Richmond around 1235 AM CDT.
  St. Cloud, Cold Spring and Rockville around 1240 AM CDT.
  New London around 1250 AM CDT.

Other locations impacted by these severe thunderstorms include
Mayhew, Morrill, Parent, Spring Hill, Opole, Pleasant Lake, Hillman,
St. Martin, Greenwald and Gilman.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.

&&

LAT...LON 4598 9381 4598 9377 4565 9376 4555 9405
      4556 9414 4553 9415 4533 9476 4514 9525
      4541 9525 4542 9513 4557 9514 4566 9461
      4606 9381
TIME...MOT...LOC 0518Z 328DEG 29KT 4574 9409 4556 9460 4548 9505 

TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
 
$$

BORGHOFF

597 
WWUS53 KMPX 180546
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
1246 AM CDT Sat Jul 18 2020

MNC097-180556-
/O.CAN.KMPX.SV.W.0069.000000T0000Z-200718T0615Z/
Morrison MN-
1246 AM CDT Sat Jul 18 2020

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN MORRISON 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, west central and east central Minnesota. A Severe
Thunderstorm Watch also remains in effect until 600 AM CDT for west
central Minnesota.

LAT...LON 4555 9405 4556 9414 4553 9415 4533 9476
      4514 9525 4541 9525 4542 9513 4557 9513
      4565 9449 4582 9377 4565 9376
TIME...MOT...LOC 0546Z 320DEG 20KT 4563 9395 4545 9446 4537 9492 

$$

MNC009-067-145-180615-
/O.CON.KMPX.SV.W.0069.000000T0000Z-200718T0615Z/
Benton MN-Stearns MN-Kandiyohi MN-
1246 AM CDT Sat Jul 18 2020

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 115 AM CDT
FOR BENTON...CENTRAL STEARNS AND NORTHERN KANDIYOHI COUNTIES...

At 1246 AM CDT, severe thunderstorms were located along a line
extending from near Foley to Cold Spring to 6 miles north of New
London, moving southeast at 25 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

These severe storms will be near...
  St. Cloud, Sauk Rapids and Foley around 1250 AM CDT.
  Rockville around 1255 AM CDT.
  Paynesville around 100 AM CDT.

Other locations impacted by these severe thunderstorms include
Mayhew, Paynesville Airport, Parent, Spring Hill, Oak Park, Padua,
Pleasant Lake, St. Stephen, Regal and St. Martin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4555 9405 4556 9414 4553 9415 4533 9476
      4514 9525 4541 9525 4542 9513 4557 9513
      4565 9449 4582 9377 4565 9376
TIME...MOT...LOC 0546Z 320DEG 20KT 4563 9395 4545 9446 4537 9492 

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

BORGHOFF

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 17, 9:08 PM CDT	Special Weather Statement	MPX	Douglas	67 min
Jul 17, 9:22 PM CDT	Severe Thunderstorm Warning	MPX	Todd	53 min
Jul 17, 10:13 PM CDT	Severe Thunderstorm Warning	MPX	Morrison, Todd	62 min
Jul 17, 10:16 PM CDT	Tornado Warning	MPX	Morrison, Todd	44 min
Jul 17, 10:20 PM CDT	Severe Thunderstorm Warning	MPX	Douglas	55 min
Jul 17, 10:54 PM CDT	Severe Thunderstorm Warning	MPX	Douglas, Pope, Stevens	66 min
Jul 17, 10:58 PM CDT	Severe Thunderstorm Warning	MPX	Mille Lacs, Morrison, Stearns, Todd	77 min
Jul 17, 11:51 PM CDT	Tornado Warning	MPX	Pope, Stearns, Swift	28 min
Jul 18, 12:13 AM CDT	Special Weather Statement	MPX	Kanabec, Mille Lacs	62 min
Jul 18, 12:26 AM CDT	Severe Thunderstorm Warning	MPX	Benton, Isanti, Meeker, Mille Lacs, Sherburne, Stearns and 1 more	49 min
Jul 18, 12:32 AM CDT	Special Weather Statement	MPX	Lac qui Parle, Swift	43 min
Jul 18, 12:44 AM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Kandiyohi, Lac qui Parle, Renville, Swift, Yellow Medicine	61 min
Jul 18, 1:03 AM CDT	Tornado Warning	MPX	Chisago, Isanti, Kanabec	27 min
Jul 18, 1:16 AM CDT	Severe Thunderstorm Warning	MPX	Kandiyohi, Meeker, Stearns	44 min
Jul 18, 1:19 AM CDT	Special Weather Statement	MPX	Anoka, Chisago, Hennepin, Isanti, Wright	56 min
Jul 18, 1:38 AM CDT	Special Weather Statement	MPX	McLeod, Meeker, Redwood, Renville	52 min
Jul 18, 3:03 AM CDT	Severe Thunderstorm Warning	MPX	Carver, Dakota, Hennepin, Scott, Washington	42 min
Jul 18, 3:43 AM CDT	Special Weather Statement	MPX	Goodhue, Rice	32 min
Jul 18, 4:06 AM CDT	Special Weather Statement	MPX	Watonwan	39 min
Jul 18, 5:09 AM CDT	Special Weather Statement	MPX	Freeborn, Steele, Waseca	66 min
Jul 18, 5:00 PM CDT	Special Weather Statement	MPX	Anoka	30 min
Jul 18, 5:23 PM CDT	Severe Thunderstorm Warning	MPX	Anoka	52 min
Jul 18, 5:48 PM CDT	Tornado Warning	MPX	Anoka	42 min
Jul 18, 6:07 PM CDT	Tornado Warning	MPX	Washington	38 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2020 Every severe thunderstorm warning in 2020

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.