Alert archive / Minnesota / Tornado Warnings in 2019

Tornado Warning 28, NWS Twin Cities, MN

July 18, 2019Faribault County, Martin County, Minnesota

NWS Twin Cities, MN issued this tornado warning at Jul 18, 2019, 6:58 PM CDT for Faribault County, Martin County, Minnesota. It was in force for 32 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: Jul 18, 2019, 6:58 PM CDT (23:58 UTC)
Expired: Jul 18, 2019, 7:30 PM CDT
In force: 32 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.5 in

Counties Faribault County, MN, Martin County, MN

The radar

The Minneapolis radar (KMPX), 134 km from the middle of the area, began a volume at 00:01 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
Jul 18, 5:30 PM CDT	Tornado Watch	SPC	4 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 12.0 hours before the alert went out and 133 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: 686 J/kg
Mixed-layer CIN: -120 J/kg
Mixed-layer LCL: 845 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: 53 m²/s²
0-3 km storm-relative helicity: 54 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 0.5

Open this sounding in Storm Lab

The text

As transmitted.

037 
WFUS53 KMPX 182358
TORMPX
MNC043-091-190030-
/O.NEW.KMPX.TO.W.0028.190718T2358Z-190719T0030Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Twin Cities/Chanhassen MN
658 PM CDT Thu Jul 18 2019

The National Weather Service in The Twin Cities has issued a

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

* Until 730 PM CDT.

* At 658 PM CDT, a severe thunderstorm capable of producing a tornado
  was located near Truman, or 9 miles north of Fairmont, moving east
  at 25 mph.

  HAZARD...Tornado and ping pong ball size hail.

  SOURCE...Weather spotters reported funnel cloud.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* This tornadic thunderstorm will remain over mainly rural areas of
  northwestern Faribault and northeastern Martin Counties, including
  the following locations... Northrop.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 4374 9450 4380 9453 4385 9430 4385 9422
      4374 9419
TIME...MOT...LOC 2358Z 255DEG 22KT 4377 9445 

TORNADO...RADAR INDICATED
HAIL...1.50IN

$$

ETA

2 follow-up statements

138 
WWUS53 KMPX 190009
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
709 PM CDT Thu Jul 18 2019

MNC043-091-190030-
/O.CON.KMPX.TO.W.0028.000000T0000Z-190719T0030Z/
Faribault MN-Martin MN-
709 PM CDT Thu Jul 18 2019

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 730 PM CDT FOR
NORTHWESTERN FARIBAULT AND NORTHEASTERN MARTIN COUNTIES...
    
At 709 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Truman, or 10 miles north of Fairmont, moving east
at 15 mph.

HAZARD...Tornado and half dollar size hail.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

This tornadic thunderstorm will remain over mainly rural areas of
northwestern Faribault and northeastern Martin Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 4376 9451 4380 9453 4385 9430 4385 9422
      4374 9419
TIME...MOT...LOC 0009Z 247DEG 14KT 4379 9443 

TORNADO...RADAR INDICATED
HAIL...1.25IN

$$

BORGHOFF

679 
WWUS53 KMPX 190020
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
720 PM CDT Thu Jul 18 2019

MNC043-091-190030-
/O.EXP.KMPX.TO.W.0028.000000T0000Z-190719T0030Z/
Faribault MN-Martin MN-
720 PM CDT Thu Jul 18 2019

...THE TORNADO WARNING FOR NORTHWESTERN FARIBAULT AND NORTHEASTERN
MARTIN COUNTIES WILL EXPIRE AT 730 PM CDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning will be allowed to expire.

A Tornado Watch remains in effect until midnight CDT for south
central Minnesota.

LAT...LON 4376 9451 4380 9453 4385 9430 4385 9422
      4374 9419
TIME...MOT...LOC 0020Z 255DEG 22KT 4431 9303 

$$

BORGHOFF

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 18, 2:04 AM CDT	Special Weather Statement	MPX	Faribault	41 min
Jul 18, 3:31 AM CDT	Special Weather Statement	MPX	Le Sueur	29 min
Jul 18, 4:11 AM CDT	Special Weather Statement	MPX	Dakota, Scott	34 min
Jul 18, 4:18 AM CDT	Special Weather Statement	MPX	Pope, Stevens	27 min
Jul 18, 4:28 AM CDT	Severe Thunderstorm Warning	MPX	Dakota, Scott	17 min
Jul 18, 4:44 AM CDT	Special Weather Statement	MPX	Pope	31 min
Jul 18, 4:50 AM CDT	Severe Thunderstorm Warning	MPX	Kandiyohi, Pope, Stearns, Swift	25 min
Jul 18, 5:59 PM CDT	Severe Thunderstorm Warning	MPX	Blue Earth, Faribault, Waseca	31 min
Jul 18, 6:35 PM CDT	Tornado Warning	MPX	Martin	25 min
Jul 18, 6:37 PM CDT	Tornado Warning	MPX	Waseca	23 min

Nearby

Tornado Warnings in Minnesota, 2019 Every tornado warning in 2019 Tornadoes in 2019

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.