Alert archive / Minnesota / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 114, NWS Twin Cities, MN

July 9, 2017Benton County, Morrison County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 9, 2017, 8:22 PM CDT for Benton County, Morrison County, Minnesota. It was in force for 38 min. 2 reports 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 9, 2017, 8:22 PM CDT (01:22 UTC)
Expired: Jul 9, 2017, 9:00 PM CDT
In force: 38 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Hail: 1.5 in
Wind: 60.0 mph

Counties Benton County, MN, Morrison County, MN

The radar

The Minneapolis radar (KMPX), 113 km from the middle of the area, began a volume at 01:21 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 9, 8:35 PM CDT	HAIL 1.75	1 S Buckman, MN
Jul 9, 9:00 PM CDT	HAIL 1	5 Sw Gilman, MN

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 9, 7:05 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 1.4 hours before the alert went out and 112 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: 627 J/kg
Mixed-layer CIN: -187 J/kg
Mixed-layer LCL: 1764 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 222 m²/s²
0-3 km storm-relative helicity: 278 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.6

Open this sounding in Storm Lab

The text

As transmitted.

586 
WUUS53 KMPX 100122
SVRMPX
MNC009-097-100200-
/O.NEW.KMPX.SV.W.0114.170710T0122Z-170710T0200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
822 PM CDT SUN JUL 9 2017

The National Weather Service in The Twin Cities has issued a

* Severe Thunderstorm Warning for...
  Northern Benton County in central Minnesota...
  South central Morrison County in central Minnesota...

* Until 900 PM CDT

* At 821 PM CDT, a severe thunderstorm was located near Royalton, or
  10 miles southeast of Little Falls, moving southeast at 30 mph.

  HAZARD...Ping pong ball size hail and 60 mph wind gusts. 

  SOURCE...Radar indicated. 

  IMPACT...People and animals outdoors will be injured. Expect hail 
           damage to roofs, siding, windows, and vehicles. Expect 
           wind damage to roofs, siding, and trees. 

* This severe thunderstorm will be near,
  Rice around 840 PM CDT. 
  Sauk Rapids and Foley around 900 PM CDT. 

Other locations impacted by this severe thunderstorm include Buckman,
Mayhew, Gilman, Little Rock and Ronneby.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

A tornado watch remains in effect until 100 AM CDT for central
Minnesota.

LAT...LON 4598 9416 4568 9383 4562 9420 4564 9421
      4568 9419 4571 9423 4572 9422 4573 9426
      4576 9427 4578 9431 4588 9433
TIME...MOT...LOC 0121Z 328DEG 24KT 4587 9421 

HAIL...1.50IN
WIND...60MPH
 
$$

1 follow-up statement

838 
WWUS53 KMPX 100141
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
841 PM CDT SUN JUL 9 2017

MNC009-097-100200-
/O.CON.KMPX.SV.W.0114.000000T0000Z-170710T0200Z/
Benton MN-Morrison MN-
841 PM CDT SUN JUL 9 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 PM CDT
FOR NORTHEASTERN BENTON AND SOUTH CENTRAL MORRISON COUNTIES...

At 841 PM CDT, a severe thunderstorm was located near Little Rock, or
14 miles northeast of St. Cloud, moving southeast at 30 mph.

HAZARD...Ping pong ball size hail and 60 mph wind gusts. 

SOURCE...Trained weather spotters. 

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect wind 
         damage to roofs, siding, and trees. 

This severe storm will be near...
  Foley around 900 PM CDT. 

Other locations impacted by this severe thunderstorm include Mayhew,
Gilman, Little Rock and Ronneby.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

A tornado watch remains in effect until 100 AM CDT for central
Minnesota.

LAT...LON 4563 9412 4581 9420 4588 9405 4568 9383
TIME...MOT...LOC 0141Z 321DEG 25KT 4577 9405 

HAIL...1.50IN
WIND...60MPH
 
$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 9, 7:35 PM CDT	Severe Thunderstorm Warning	MPX	Stevens, Swift	40 min
Jul 9, 7:50 PM CDT	Severe Thunderstorm Warning	MPX	Mille Lacs, Morrison	40 min
Jul 9, 7:51 PM CDT	Severe Thunderstorm Warning	MPX	McLeod, Meeker, Renville	39 min
Jul 9, 7:57 PM CDT	Tornado Warning	MPX	Stevens, Swift	33 min
Jul 9, 8:09 PM CDT	Tornado Warning	MPX	Swift	28 min
Jul 9, 8:21 PM CDT	Tornado Warning	MPX	Chippewa, Lac qui Parle	39 min
Jul 9, 8:25 PM CDT	Severe Thunderstorm Warning	MPX	Kanabec, Mille Lacs	40 min
Jul 9, 8:28 PM CDT	Special Weather Statement	MPX	McLeod, Scott	47 min
Jul 9, 8:33 PM CDT	Severe Thunderstorm Warning	MPX	McLeod, Renville, Sibley	42 min
Jul 9, 8:54 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Lac qui Parle, Yellow Medicine	66 min
Jul 9, 8:55 PM CDT	Severe Thunderstorm Warning	MPX	Benton, Sherburne	25 min
Jul 9, 8:56 PM CDT	Severe Thunderstorm Warning	MPX	Dakota, Le Sueur, Rice, Scott	34 min
Jul 9, 8:58 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Swift	47 min
Jul 9, 9:03 PM CDT	Severe Thunderstorm Warning	MPX	Nicollet, Sibley	42 min
Jul 9, 9:06 PM CDT	Severe Thunderstorm Warning	MPX	Kandiyohi, Pope, Stearns	27 min
Jul 9, 9:09 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Lac qui Parle, Swift	20 min
Jul 9, 9:11 PM CDT	Severe Thunderstorm Warning	MPX	Blue Earth, Le Sueur, Nicollet, Waseca	49 min
Jul 9, 9:16 PM CDT	Severe Thunderstorm Warning	MPX	Dakota, Hennepin, Ramsey, Washington	44 min
Jul 9, 9:23 PM CDT	Severe Thunderstorm Warning	MPX	Dakota, Rice, Scott	53 min
Jul 9, 9:26 PM CDT	Severe Thunderstorm Warning	MPX	Blue Earth, Brown, Nicollet	49 min
Jul 9, 9:30 PM CDT	Tornado Warning	MPX	Nicollet	30 min
Jul 9, 9:51 PM CDT	Severe Thunderstorm Warning	MPX	Blue Earth, Steele, Waseca	54 min
Jul 9, 10:10 PM CDT	Severe Thunderstorm Warning	MPX	Blue Earth, Nicollet	35 min
Jul 9, 10:19 PM CDT	Tornado Warning	MPX	Blue Earth	41 min
Jul 9, 10:34 PM CDT	Severe Thunderstorm Warning	MPX	Nicollet, Sibley	41 min
Jul 9, 10:41 PM CDT	Severe Thunderstorm Warning	MPX	Faribault, Freeborn, Steele, Waseca	64 min
Jul 9, 10:51 PM CDT	Severe Thunderstorm Warning	MPX	McLeod, Renville, Sibley	39 min
Jul 9, 10:55 PM CDT	Severe Thunderstorm Warning	MPX	Brown, Redwood, Renville	35 min
Jul 9, 11:05 PM CDT	Severe Thunderstorm Warning	MPX	Blue Earth	40 min
Jul 9, 11:17 PM CDT	Severe Thunderstorm Warning	MPX	Faribault, Freeborn	43 min
Jul 9, 11:39 PM CDT	Severe Thunderstorm Warning	MPX	Blue Earth, Brown, Nicollet, Watonwan	37 min
Jul 9, 11:55 PM CDT	Severe Thunderstorm Warning	MPX	Redwood	18 min
Jul 10, 12:05 AM CDT	Severe Thunderstorm Warning	MPX	Blue Earth, Faribault, Martin	40 min
Jul 10, 12:45 AM CDT	Severe Thunderstorm Warning	MPX	Faribault, Freeborn	30 min
Jul 10, 12:47 AM CDT	Severe Thunderstorm Warning	MPX	Nicollet	26 min
Jul 10, 1:30 AM CDT	Severe Thunderstorm Warning	MPX	Blue Earth, Brown, Watonwan	35 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2017 Every 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.