Alert archive / Minnesota / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 38, NWS Twin Cities, MN

May 17, 2017Freeborn County, Steele County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at May 17, 2017, 3:08 PM CDT for Freeborn County, Steele County, Minnesota. It was in force for 24 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: May 17, 2017, 3:08 PM CDT (20:08 UTC)
Expired: May 17, 2017, 3:32 PM CDT
In force: 24 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Hail: 1.25 in
Wind: 60.0 mph

Counties Freeborn County, MN, Steele County, MN

The radar

The Minneapolis radar (KMPX), 120 km from the middle of the area, began a volume at 20:09 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
May 17, 2:53 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 8.1 hours before the alert went out and 120 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 737 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 3 m²/s²
0-3 km storm-relative helicity: -70 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

411 
WUUS53 KMPX 172008
SVRMPX
MNC047-147-172045-
/O.NEW.KMPX.SV.W.0038.170517T2008Z-170517T2045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
308 PM CDT WED MAY 17 2017

The National Weather Service in The Twin Cities has issued a

* Severe Thunderstorm Warning for...
  North central Freeborn County in south central Minnesota...
  Southwestern Steele County in south central Minnesota...

* Until 345 PM CDT

* At 308 PM CDT, a severe thunderstorm was located over Clarks Grove,
  or near Albert Lea, moving north at 40 mph.

  HAZARD...60 mph wind gusts and half dollar size hail. 

  SOURCE...Radar indicated. 

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees. 

* This severe thunderstorm will be near,
  Ellendale and Geneva around 320 PM CDT. 

Other locations impacted by this severe thunderstorm include Albert
Lea Airport.

This includes the following highways...
 Interstate 35 between mile markers 14 and 30.
 Interstate 90 near mile marker 157.

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 1000 PM CDT for south central
Minnesota.

LAT...LON 4369 9331 4369 9339 4394 9339 4392 9322
TIME...MOT...LOC 2008Z 191DEG 34KT 4374 9334 

HAIL...1.25IN
WIND...60MPH
 
$$

SPD

2 follow-up statements

287 
WWUS53 KMPX 172019
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
319 PM CDT WED MAY 17 2017

MNC047-147-172045-
/O.CON.KMPX.SV.W.0038.000000T0000Z-170517T2045Z/
Freeborn MN-Steele MN-
319 PM CDT WED MAY 17 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 PM CDT
FOR NORTH CENTRAL FREEBORN AND SOUTHWESTERN STEELE COUNTIES...

At 318 PM CDT, a severe thunderstorm was located over Ellendale, or
13 miles north of Albert Lea, moving north at 40 mph.

HAZARD...60 mph wind gusts and quarter size hail. 

SOURCE...Radar indicated. 

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees. 

this severe thunderstorm will remain over mainly rural areas of north
central Freeborn and southwestern Steele Counties.

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 1000 PM CDT for south central
Minnesota.

LAT...LON 4376 9328 4377 9338 4394 9339 4392 9322
TIME...MOT...LOC 2018Z 191DEG 34KT 4384 9331 

HAIL...1.00IN
WIND...60MPH
 
$$

SPD

153 
WWUS53 KMPX 172032
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
332 PM CDT WED MAY 17 2017

MNC047-147-172042-
/O.CAN.KMPX.SV.W.0038.000000T0000Z-170517T2045Z/
Freeborn MN-Steele MN-
332 PM CDT WED MAY 17 2017

...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL FREEBORN AND
SOUTHWESTERN STEELE COUNTIES IS CANCELLED...
        
The storm which prompted the warning has moved out of the area.
Therefore the warning has been cancelled.

A tornado watch remains in effect until 1000 PM CDT for south central
Minnesota.

LAT...LON 4376 9328 4377 9338 4394 9339 4392 9322
TIME...MOT...LOC 2029Z 191DEG 34KT 4397 9327 

$$

SPD

The office that day

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

Issued	Product	Office	Counties	Lasted
May 16, 9:42 PM CDT	Severe Thunderstorm Warning	MPX	Faribault, Freeborn	48 min
May 17, 2:34 PM CDT	Special Weather Statement	MPX	Freeborn	26 min
May 17, 2:44 PM CDT	Severe Thunderstorm Warning	MPX	Freeborn	31 min
May 17, 2:56 PM CDT	Severe Thunderstorm Warning	MPX	Freeborn	34 min
May 17, 3:03 PM CDT	Special Weather Statement	MPX	Martin, Watonwan	42 min
May 17, 3:10 PM CDT	Severe Thunderstorm Warning	MPX	Blue Earth, Faribault	35 min
May 17, 3:23 PM CDT	Special Weather Statement	MPX	Martin	22 min
May 17, 3:30 PM CDT	Severe Thunderstorm Warning	MPX	Steele	30 min
May 17, 3:42 PM CDT	Tornado Warning	MPX	Blue Earth	33 min
May 17, 3:55 PM CDT	Tornado Warning	MPX	Steele	21 min
May 17, 4:00 PM CDT	Severe Thunderstorm Warning	MPX	Rice, Steele	30 min
May 17, 4:03 PM CDT	Severe Thunderstorm Warning	MPX	Blue Earth, Brown, Nicollet	27 min
May 17, 4:11 PM CDT	Tornado Warning	MPX	Blue Earth, Nicollet	19 min
May 17, 5:00 PM CDT	Special Weather Statement	MPX	Nicollet	30 min
May 17, 5:01 PM CDT	Flash Flood Warning	MPX	Blue Earth, Le Sueur, Nicollet	119 min
May 17, 5:13 PM CDT	Special Weather Statement	MPX	Anoka	32 min
May 17, 5:45 PM CDT	Special Weather Statement	MPX	Carver	30 min
May 17, 5:50 PM CDT	Special Weather Statement	MPX	Chisago	25 min
May 17, 6:04 PM CDT	Special Weather Statement	MPX	Hennepin, Rice, Scott, Wright	56 min
May 17, 6:08 PM CDT	Special Weather Statement	MPX	Martin	37 min
May 17, 6:11 PM CDT	Special Weather Statement	MPX	Chisago	64 min
May 17, 6:45 PM CDT	Special Weather Statement	MPX	Sherburne	60 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.