Alert archive / Minnesota / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 106, NWS Twin Cities, MN

July 25, 2018Faribault County, Martin County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 25, 2018, 5:12 PM CDT for Faribault County, Martin County, Minnesota. It was in force for 33 min. 3 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 25, 2018, 5:12 PM CDT (22:12 UTC)
Expired: Jul 25, 2018, 5:45 PM CDT
In force: 33 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Hail: 1.5 in
Wind: 60.0 mph

Counties Faribault County, MN, Martin County, MN

The radar

The Minneapolis radar (KMPX), 135 km from the middle of the area, began a volume at 22:14 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 25, 5:29 PM CDT	HAIL 1.75	5 Wnw Blue Earth, MN	REPORTS OF CROPS SHREDDED.
Jul 25, 5:33 PM CDT	HAIL 1.25	Blue Earth, MN
Jul 25, 5:35 PM CDT	HAIL 2.75	1 W Blue Earth, MN	IMAGES ON TWITTER.

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 25, 4:05 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 10.2 hours before the alert went out and 134 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: 287 J/kg
Mixed-layer CIN: -165 J/kg
Mixed-layer LCL: 1643 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: 49 m²/s²
0-3 km storm-relative helicity: 107 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

995 
WUUS53 KMPX 252212
SVRMPX
MNC043-091-252245-
/O.NEW.KMPX.SV.W.0106.180725T2212Z-180725T2245Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
512 PM CDT WED JUL 25 2018

The National Weather Service in The Twin Cities has issued a

* Severe Thunderstorm Warning for...
  Northwestern Faribault County in south central Minnesota...
  Northeastern Martin County in south central Minnesota...

* Until 545 PM CDT.

* At 511 PM CDT, a severe thunderstorm was located near Northrop, or
  11 miles northeast of Fairmont, moving southeast at 40 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.

* Locations impacted include...
  Blue Earth, Winnebago, Granada, Northrop, Huntley, Imogene and
  Guckeen.

This includes the following highways...
 Interstate 90 between mile markers 107 and 121.
 U.S. Highway 169 between mile markers 9 and 23.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4377 9452 4385 9437 4385 9422 4372 9397
      4355 9419
TIME...MOT...LOC 2211Z 310DEG 34KT 4378 9437 

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

ETA

2 follow-up statements

736 
WWUS53 KMPX 252224
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
524 PM CDT WED JUL 25 2018

MNC043-091-252245-
/O.CON.KMPX.SV.W.0106.000000T0000Z-180725T2245Z/
Faribault MN-Martin MN-
524 PM CDT WED JUL 25 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM CDT
FOR NORTHWESTERN FARIBAULT AND EAST CENTRAL MARTIN COUNTIES...

At 524 PM CDT, a severe thunderstorm was located over Huntley, or 12
miles east of Fairmont, moving southeast at 40 mph.

HAZARD...Two inch 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.

Locations impacted include...
Blue Earth, Winnebago, Granada, Huntley, Imogene and Guckeen. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4370 9442 4382 9419 4369 9401 4355 9419
TIME...MOT...LOC 2224Z 310DEG 34KT 4370 9424 

HAIL...2.00IN
WIND...60MPH
 
$$

ETA

953 
WWUS53 KMPX 252238
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
538 PM CDT WED JUL 25 2018

MNC091-252247-
/O.CAN.KMPX.SV.W.0106.000000T0000Z-180725T2245Z/
Martin MN-
538 PM CDT WED JUL 25 2018

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL MARTIN COUNTY IS
CANCELLED...
    
The severe 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 1100 PM CDT for
south central Minnesota.

LAT...LON 4356 9421 4359 9425 4361 9425 4374 9408
      4369 9401 4355 9419
TIME...MOT...LOC 2237Z 310DEG 34KT 4362 9410 

$$

MNC043-252245-
/O.CON.KMPX.SV.W.0106.000000T0000Z-180725T2245Z/
Faribault MN-
538 PM CDT WED JUL 25 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM CDT
FOR WEST CENTRAL FARIBAULT COUNTY...

At 537 PM CDT, a severe thunderstorm was located over Blue Earth, or 
18 miles east of Fairmont, moving southeast at 40 mph. Half dollar 
to golf ball sized hail has been reported in Blue Earth

HAZARD...Two inch hail and 60 mph wind gusts.

SOURCE...Emergency management.

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...
Blue Earth.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 4356 9421 4359 9425 4361 9425 4374 9408
      4369 9401 4355 9419
TIME...MOT...LOC 2237Z 310DEG 34KT 4362 9410 

HAIL...2.00IN
WIND...60MPH
 
$$

ETA

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 25, 5:38 AM CDT	Special Weather Statement	MPX	Chippewa, Lac qui Parle, Swift	37 min
Jul 25, 2:55 PM CDT	Special Weather Statement	MPX	Martin	35 min
Jul 25, 3:31 PM CDT	Severe Thunderstorm Warning	MPX	Faribault, Martin	29 min
Jul 25, 3:40 PM CDT	Special Weather Statement	MPX	Redwood	35 min
Jul 25, 3:59 PM CDT	Special Weather Statement	MPX	Faribault	31 min
Jul 25, 4:02 PM CDT	Severe Thunderstorm Warning	MPX	Brown, Redwood	28 min
Jul 25, 4:27 PM CDT	Severe Thunderstorm Warning	MPX	Watonwan	48 min
Jul 25, 4:28 PM CDT	Special Weather Statement	MPX	Anoka	32 min
Jul 25, 5:02 PM CDT	Special Weather Statement	MPX	Martin	28 min
Jul 25, 5:34 PM CDT	Severe Thunderstorm Warning	MPX	Faribault	32 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2018 Every severe thunderstorm warning in 2018

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.