Alert archive / Minnesota / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 86, NWS Twin Cities, MN

July 2, 2018Stevens County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 2, 2018, 10:50 PM CDT for Stevens County, Minnesota. It was in force for 25 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 2, 2018, 10:50 PM CDT (03:50 UTC)
Expired: Jul 2, 2018, 11:15 PM CDT
In force: 25 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Hail: 1.25 in
Wind: 50.0 mph

County Stevens County, MN

The radar

The Aberdeen radar (KABR), 192 km from the middle of the area, began a volume at 03:51 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 nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 3.8 hours before the alert went out and 208 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: 654 J/kg
Mixed-layer CIN: -78 J/kg
Mixed-layer LCL: 1535 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 68 m²/s²
0-3 km storm-relative helicity: 273 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 3.0

Open this sounding in Storm Lab

The text

As transmitted.

828 
WUUS53 KMPX 030350
SVRMPX
MNC149-030415-
/O.NEW.KMPX.SV.W.0086.180703T0350Z-180703T0415Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
1050 PM CDT MON JUL 2 2018

The National Weather Service in The Twin Cities has issued a

* Severe Thunderstorm Warning for...
  Northern Stevens County in west central Minnesota...

* Until 1115 PM CDT.

* At 1050 PM CDT, a severe thunderstorm was located over Fish Lake,
  or 11 miles northwest of Morris, moving east at 45 mph.

  HAZARD...Half dollar size hail.

  SOURCE...Radar indicated.

  IMPACT...Damage to vehicles is expected.

* Locations impacted include...
  Donnelly and Fish Lake. 

This includes U.S. Highway 59 between mile markers 172 and 177.
 
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.

Large hail and damaging winds and continuous cloud to ground
lightning is occurring with this storm. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.

&&

LAT...LON 4576 9576 4570 9576 4559 9611 4564 9620
      4576 9622
TIME...MOT...LOC 0350Z 252DEG 39KT 4567 9612 

HAIL...1.25IN
WIND...<50MPH
 
$$

JPC

1 follow-up statement

800 
WWUS53 KMPX 030409
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
1109 PM CDT MON JUL 2 2018

MNC149-030418-
/O.EXP.KMPX.SV.W.0086.000000T0000Z-180703T0415Z/
Stevens MN-
1109 PM CDT MON JUL 2 2018

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN STEVENS COUNTY WILL
EXPIRE AT 1115 PM CDT...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will
be allowed to expire.

LAT...LON 4576 9576 4570 9576 4559 9611 4564 9620
      4576 9622
TIME...MOT...LOC 0408Z 252DEG 39KT 4573 9587 

$$

JPC

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 2, 8:35 PM CDT	Special Weather Statement	MPX	Yellow Medicine	25 min
Jul 2, 9:05 PM CDT	Special Weather Statement	MPX	Yellow Medicine	55 min
Jul 2, 9:37 PM CDT	Special Weather Statement	MPX	Chippewa	23 min
Jul 2, 10:06 PM CDT	Special Weather Statement	MPX	Chippewa, Kandiyohi	54 min
Jul 2, 10:40 PM CDT	Special Weather Statement	MPX	Stevens	50 min
Jul 2, 11:48 PM CDT	Special Weather Statement	MPX	Douglas	42 min
Jul 3, 12:03 AM CDT	Severe Thunderstorm Warning	MPX	Douglas	27 min
Jul 3, 12:20 AM CDT	Special Weather Statement	MPX	Redwood	55 min
Jul 3, 12:24 AM CDT	Special Weather Statement	MPX	Kandiyohi	51 min
Jul 3, 12:29 AM CDT	Severe Thunderstorm Warning	MPX	Kandiyohi	31 min
Jul 3, 12:34 AM CDT	Special Weather Statement	MPX	Douglas	26 min
Jul 3, 12:48 AM CDT	Severe Thunderstorm Warning	MPX	Redwood, Yellow Medicine	42 min
Jul 3, 1:05 AM CDT	Special Weather Statement	MPX	Todd	55 min
Jul 3, 2:12 AM CDT	Areal Flood Warning	MPX	Kandiyohi, Redwood, Renville, Yellow Medicine	9 hr
Jul 3, 3:09 AM CDT	Special Weather Statement	MPX	Redwood	36 min
Jul 3, 3:23 AM CDT	Special Weather Statement	MPX	Renville	37 min
Jul 3, 3:25 AM CDT	Excessive Heat Watch	MPX	Anoka, Blue Earth, Brown, Carver, Dakota, Faribault and 14 more	24 hr
Jul 3, 4:35 AM CDT	Areal Flood Warning	MPX	Redwood, Renville	6 hr
Jul 3, 7:47 AM CDT	Flash Flood Warning	MPX	Brown, Nicollet, Redwood, Renville, Yellow Medicine	3 hr
Jul 3, 8:25 AM CDT	River Flood Warning	MPX	Brown	9 days
Jul 3, 9:36 AM CDT	Special Weather Statement	MPX	Isanti, Sherburne	39 min
Jul 3, 10:03 AM CDT	Special Weather Statement	MPX	Chisago	57 min
Jul 3, 10:25 AM CDT	High Wind Warning	MPX	Anoka, Benton, Chisago, Isanti, Mille Lacs, Sherburne	3 hr
Jul 3, 10:43 AM CDT	Flash Flood Warning	MPX	Brown, Redwood, Renville	6 hr
Jul 3, 10:48 AM CDT	Special Weather Statement	MPX	Douglas, Stevens	42 min
Jul 3, 11:42 AM CDT	Special Weather Statement	MPX	Hennepin, Ramsey, Washington, Wright	63 min
Jul 3, 12:01 PM CDT	Special Weather Statement	MPX	Redwood	44 min
Jul 3, 12:30 PM CDT	Special Weather Statement	MPX	Redwood	45 min
Jul 3, 12:52 PM CDT	Severe Thunderstorm Warning	MPX	Redwood, Renville	38 min
Jul 3, 1:25 PM CDT	Special Weather Statement	MPX	Renville	35 min
Jul 3, 2:01 PM CDT	Special Weather Statement	MPX	Renville	29 min
Jul 3, 4:08 PM CDT	Areal Flood Warning	MPX	Brown, Redwood	8 days
Jul 3, 4:18 PM CDT	Areal Flood Warning	MPX	Redwood	4 days

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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.