Alert archive / Minnesota / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 24, NWS Twin Cities, MN

May 16, 2017Dakota County, Goodhue County, Rice County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at May 16, 2017, 3:27 PM CDT for Dakota County, Goodhue County, Rice County, Minnesota. It was in force for 48 min. 4 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: May 16, 2017, 3:27 PM CDT (20:27 UTC)
Expired: May 16, 2017, 4:15 PM CDT
In force: 48 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

Counties Dakota County, MN, Goodhue County, MN, Rice County, MN

The radar

The Minneapolis radar (KMPX), 62 km from the middle of the area, began a volume at 20:27 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 16, 3:37 PM CDT	HAIL 1.75	1 Ne Dennison, MN	PICTURE PROVIDED.
May 16, 3:40 PM CDT	HAIL 1.25	1 S Cannon Falls, MN	REPORTED VIA TWITTER.
May 16, 3:45 PM CDT	HAIL 1.75	2 Se Cannon Falls, MN	TIME ESTIMATED. REPORTED VIA FACEBOOK.
May 16, 3:53 PM CDT	HAIL 1	Cannon Falls, MN	PICTURE PROVIDED VIA SOCIAL MEDIA.

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

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 8.5 hours before the alert went out and 64 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: 241 J/kg
Mixed-layer CIN: -181 J/kg
Mixed-layer LCL: 1186 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: -35 m²/s²
0-3 km storm-relative helicity: -4 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -1.3

Open this sounding in Storm Lab

The text

As transmitted.

843 
WUUS53 KMPX 162027
SVRMPX
MNC037-049-131-162115-
/O.NEW.KMPX.SV.W.0024.170516T2027Z-170516T2115Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
327 PM CDT TUE MAY 16 2017

The National Weather Service in The Twin Cities has issued a

* Severe Thunderstorm Warning for...
  Southeastern Dakota County in east central Minnesota...
  Northwestern Goodhue County in southeastern Minnesota...
  Northeastern Rice County in south central Minnesota...

* Until 415 PM CDT

* At 327 PM CDT, a severe thunderstorm was located over Northfield,
  moving northeast at 30 mph.

  HAZARD...Quarter size hail. 

  SOURCE...Trained weather spotters. 

  IMPACT...Damage to vehicles is expected. 

* This severe thunderstorm will be near,
  Stanton around 340 PM CDT. 
  Cannon Falls around 350 PM CDT. 
  Hastings around 415 PM CDT. 

Other locations impacted by this severe thunderstorm include Vasa,
Vermillion, Bridgewater, Miesville, Hampton, Lake Byllesby, Randolph
and New Trier.

This includes U.S. Highway 61 between mile markers 96 and 104.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 4432 9306 4443 9330 4477 9292 4456 9259
TIME...MOT...LOC 2027Z 226DEG 26KT 4444 9314 

HAIL...1.00IN
WIND...<50MPH
 
$$

ETA

1 follow-up statement

687 
WWUS53 KMPX 162049
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
349 PM CDT TUE MAY 16 2017

MNC131-162058-
/O.CAN.KMPX.SV.W.0024.000000T0000Z-170516T2115Z/
Rice MN-
349 PM CDT TUE MAY 16 2017

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN RICE COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

LAT...LON 4442 9287 4453 9305 4473 9289 4456 9259
TIME...MOT...LOC 2048Z 226DEG 26KT 4455 9298 

$$

MNC037-049-162115-
/O.CON.KMPX.SV.W.0024.000000T0000Z-170516T2115Z/
Dakota MN-Goodhue MN-
349 PM CDT TUE MAY 16 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM CDT
FOR SOUTHEASTERN DAKOTA AND NORTHWESTERN GOODHUE COUNTIES...

At 348 PM CDT, a severe thunderstorm was located over Lake Byllesby, 
or 11 miles northeast of Northfield, moving northeast at 30 mph. 
Golf ball sized hail has been reported with this storm.

HAZARD...Golf ball size hail. 

SOURCE...Trained weather spotters. 

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

Locations impacted include...
Red Wing, Hastings, Cannon Falls, Welch, Vasa, Hampton, Miesville,
New Trier and Lake Byllesby.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 4442 9287 4453 9305 4473 9289 4456 9259
TIME...MOT...LOC 2048Z 226DEG 26KT 4455 9298 

HAIL...1.75IN
WIND...<50MPH
 
$$

ETA

The office that day

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

Issued	Product	Office	Counties	Lasted
May 15, 8:53 PM CDT	Special Weather Statement	MPX	Faribault	37 min
May 15, 9:32 PM CDT	Severe Thunderstorm Warning	MPX	Waseca	43 min
May 15, 9:55 PM CDT	Severe Thunderstorm Warning	MPX	Blue Earth, Waseca	35 min
May 15, 10:04 PM CDT	Severe Thunderstorm Warning	MPX	Steele	56 min
May 15, 10:25 PM CDT	Severe Thunderstorm Warning	MPX	Goodhue	26 min
May 15, 11:11 PM CDT	Special Weather Statement	MPX	Waseca	34 min
May 15, 11:39 PM CDT	Special Weather Statement	MPX	Rice	36 min
May 16, 1:18 AM CDT	Special Weather Statement	MPX	Rice	42 min
May 16, 3:05 AM CDT	Special Weather Statement	MPX	Lac qui Parle, Yellow Medicine	55 min
May 16, 3:47 AM CDT	Special Weather Statement	MPX	Chippewa, Kandiyohi, Stevens, Swift	28 min
May 16, 4:20 AM CDT	Special Weather Statement	MPX	Kandiyohi, Stearns	55 min
May 16, 5:06 AM CDT	Special Weather Statement	MPX	Brown, Martin, Redwood, Watonwan	84 min
May 16, 2:54 PM CDT	Flash Flood Watch	MPX	Faribault, Freeborn, Goodhue, Rice, Steele, Waseca	12 hr
May 16, 3:04 PM CDT	Special Weather Statement	MPX	Rice	26 min
May 16, 4:06 PM CDT	Severe Thunderstorm Warning	MPX	Dakota, Washington	39 min
May 16, 4:38 PM CDT	Severe Thunderstorm Warning	MPX	Washington	52 min
May 16, 5:32 PM CDT	Severe Thunderstorm Warning	MPX	Dakota, Goodhue, Rice	43 min
May 16, 5:42 PM CDT	Severe Thunderstorm Warning	MPX	Rice	33 min
May 16, 6:16 PM CDT	Severe Thunderstorm Warning	MPX	Dakota, Goodhue	44 min
May 16, 6:58 PM CDT	Severe Thunderstorm Warning	MPX	Goodhue	47 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.