Alert archive / Minnesota / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 31, NWS Twin Cities, MN

May 16, 2017Rice County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at May 16, 2017, 5:42 PM CDT for Rice County, Minnesota. It was in force for 33 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: May 16, 2017, 5:42 PM CDT (22:42 UTC)
Expired: May 16, 2017, 6:15 PM CDT
In force: 33 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Hail: 1.5 in
Wind: 60.0 mph

County Rice County, MN

The radar

The Minneapolis radar (KMPX), 54 km from the middle of the area, began a volume at 22:41 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, 5:55 PM CDT	HAIL 2.5	Northfield, MN	REPORTED VIA TWITTER. INCLUDED PHOTO.
May 16, 6:00 PM CDT	HAIL 1	3 Sw Dundas, 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
May 16, 4:08 PM CDT	Severe Thunderstorm Watch	SPC	4 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 10.7 hours before the alert went out and 55 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.

053 
WUUS53 KMPX 162242
SVRMPX
MNC131-162315-
/O.NEW.KMPX.SV.W.0031.170516T2242Z-170516T2315Z/

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

The National Weather Service in The Twin Cities has issued a

* Severe Thunderstorm Warning for...
  Central Rice County in south central Minnesota...

* Until 615 PM CDT

* At 542 PM CDT, a severe thunderstorm was located near Faribault
  Airport, or 8 miles northwest of Faribault, moving east 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,
  Faribault around 550 PM CDT. 
  Dundas around 610 PM CDT. 
  Northfield and Nerstrand around 615 PM CDT. 

Other locations impacted by this severe thunderstorm include
Faribault Airport and Bridgewater.

This includes Interstate 35 between mile markers 58 and 69.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4440 9350 4448 9328 4447 9328 4447 9304
      4430 9305 4430 9348
TIME...MOT...LOC 2242Z 248DEG 26KT 4435 9343 

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

jrb

1 follow-up statement

897 
WWUS53 KMPX 162304
SVSMPX

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

MNC131-162315-
/O.CON.KMPX.SV.W.0031.000000T0000Z-170516T2315Z/
Rice MN-
604 PM CDT TUE MAY 16 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM CDT
FOR NORTHEASTERN RICE COUNTY...

At 603 PM CDT, a severe thunderstorm was located over Bridgewater, or
near Northfield, moving east 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. 

Locations impacted include...
Northfield, Dundas and Bridgewater. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This storm is producing large hail. SEEK SHELTER NOW inside a sturdy
structure and stay away from windows.

&&

LAT...LON 4443 9329 4448 9328 4447 9328 4447 9304
      4440 9304 4440 9327
TIME...MOT...LOC 2303Z 248DEG 26KT 4441 9323 

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

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, 3:27 PM CDT	Severe Thunderstorm Warning	MPX	Dakota, Goodhue, Rice	48 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, 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.