Alert archive / Minnesota / Tornado Warnings in 2020

Tornado Warning 15, NWS Twin Cities, MN

July 17, 2020Pope County, Stearns County, Swift County, Minnesota

NWS Twin Cities, MN issued this tornado warning at Jul 17, 2020, 11:51 PM CDT for Pope County, Stearns County, Swift County, Minnesota. It was in force for 28 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: Jul 17, 2020, 11:51 PM CDT (04:51 UTC)
Expired: Jul 18, 2020, 12:19 AM CDT
In force: 28 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.0 in

Counties Pope County, MN, Stearns County, MN, Swift County, MN

The radar

The Minneapolis radar (KMPX), 154 km from the middle of the area, began a volume at 04:53 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.

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, 4.9 hours before the alert went out and 151 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.

915 
WFUS53 KMPX 180451
TORMPX
MNC121-145-151-180545-
/O.NEW.KMPX.TO.W.0015.200718T0451Z-200718T0545Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Twin Cities/Chanhassen MN
1151 PM CDT Fri Jul 17 2020

The National Weather Service in The Twin Cities has issued a

* Tornado Warning for...
  Southeastern Pope County in west central Minnesota...
  West central Stearns County in central Minnesota...
  Northeastern Swift County in west central Minnesota...

* Until 1245 AM CDT.
    
* At 1151 PM CDT, a severe thunderstorm capable of producing a
  tornado was located near Starbuck, or 22 miles east of Morris,
  moving southeast at 30 mph.

  HAZARD...Tornado and quarter size hail.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* This dangerous storm will be near...
  Brooten around 1230 AM CDT.

Other locations impacted by this tornadic thunderstorm include
Gilchrist, Sedan and Lake Minnewaska.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

&&

LAT...LON 4555 9556 4563 9544 4551 9500 4541 9518
      4541 9525 4536 9525 4534 9529
TIME...MOT...LOC 0451Z 294DEG 24KT 4556 9545 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

BORGHOFF

3 follow-up statements

674 
WWUS53 KMPX 180500
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
1200 AM CDT Sat Jul 18 2020

MNC121-145-151-180545-
/O.CON.KMPX.TO.W.0015.000000T0000Z-200718T0545Z/
Pope MN-Stearns MN-Swift MN-
1200 AM CDT Sat Jul 18 2020

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1245 AM CDT FOR
SOUTHEASTERN POPE...WEST CENTRAL STEARNS AND NORTHEASTERN SWIFT
COUNTIES...
    
At 1159 PM CDT, a severe thunderstorm capable of producing a tornado
was located 8 miles south of Glenwood, or 25 miles south of
Alexandria, moving east at 40 mph.

HAZARD...Tornado and quarter size hail.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

This dangerous storm will be near...
  Brooten around 1220 AM CDT.

Other locations impacted by this tornadic thunderstorm include
Gilchrist and Sedan.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

&&

LAT...LON 4549 9546 4561 9536 4551 9500 4541 9518
      4541 9525 4536 9525 4534 9528
TIME...MOT...LOC 0459Z 281DEG 33KT 4554 9534 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

BORGHOFF

172 
WWUS53 KMPX 180511
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
1211 AM CDT Sat Jul 18 2020

MNC151-180521-
/O.CAN.KMPX.TO.W.0015.000000T0000Z-200718T0545Z/
Swift MN-
1211 AM CDT Sat Jul 18 2020

...THE TORNADO WARNING FOR NORTHEASTERN SWIFT COUNTY IS CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area. Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 100 AM CDT for
central and west central Minnesota.

LAT...LON 4551 9500 4541 9518 4541 9527 4551 9536
      4558 9525
TIME...MOT...LOC 0511Z 281DEG 33KT 4552 9520 

$$

MNC121-145-180545-
/O.CON.KMPX.TO.W.0015.000000T0000Z-200718T0545Z/
Pope MN-Stearns MN-
1211 AM CDT Sat Jul 18 2020

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1245 AM CDT FOR
SOUTHEASTERN POPE AND WEST CENTRAL STEARNS COUNTIES...
    
At 1211 AM CDT, a severe thunderstorm capable of producing a tornado
was located near Brooten, or 27 miles north of Willmar, moving east
at 40 mph.

HAZARD...Tornado and quarter size hail.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

This dangerous storm will be near...
  Brooten around 1220 AM CDT.

Other locations impacted by this tornadic thunderstorm include Sedan.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

&&

LAT...LON 4551 9500 4541 9518 4541 9527 4551 9536
      4558 9525
TIME...MOT...LOC 0511Z 281DEG 33KT 4552 9520 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

BORGHOFF

335 
WWUS53 KMPX 180519 RRA
SVSMPX

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

MNC121-145-180529-
/O.CAN.KMPX.TO.W.0015.000000T0000Z-200718T0545Z/
Pope MN-Stearns MN-
1219 AM CDT Sat Jul 18 2020

...THE TORNADO WARNING FOR SOUTHEASTERN POPE AND WEST CENTRAL STEARNS
COUNTIES IS CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 100 AM CDT for
central and west 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 4551 9500 4541 9518 4541 9527 4551 9536
      4558 9525
TIME...MOT...LOC 0518Z 294DEG 24KT 4550 9513 

$$

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, 11:58 PM CDT	Severe Thunderstorm Warning	MPX	Benton, Kandiyohi, Morrison, Stearns	77 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

Tornado Warnings in Minnesota, 2020 Every tornado warning in 2020 Tornadoes 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.