Alert archive / Minnesota / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 48, NWS Twin Cities, MN

May 29, 2018Isanti County, Kanabec County, Mille Lacs County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at May 29, 2018, 3:49 PM CDT for Isanti County, Kanabec County, Mille Lacs County, Minnesota. It was in force for 37 min. 1 report 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 29, 2018, 3:49 PM CDT (20:49 UTC)
Expired: May 29, 2018, 4:26 PM CDT
In force: 37 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Hail: 1.25 in
Wind: 60.0 mph

Counties Isanti County, MN, Kanabec County, MN, Mille Lacs County, MN

The radar

The Minneapolis radar (KMPX), 102 km from the middle of the area, began a volume at 20:50 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 29, 4:05 PM CDT	TSTM WND DMG	3 W Ogilvie, MN	STRONG DOWNBURST. BLEW SHEET METAL PIECES OFF SHED.

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 29, 1:43 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 8.8 hours before the alert went out and 103 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: 138 J/kg
Mixed-layer CIN: -309 J/kg
Mixed-layer LCL: 1748 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 186 m²/s²
0-3 km storm-relative helicity: 221 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

544 
WUUS53 KMPX 292049
SVRMPX
MNC059-065-095-292145-
/O.NEW.KMPX.SV.W.0048.180529T2049Z-180529T2145Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
349 PM CDT TUE MAY 29 2018

The National Weather Service in The Twin Cities has issued a

* Severe Thunderstorm Warning for...
  Southern Kanabec County in east central Minnesota...
  Southeastern Mille Lacs County in east central Minnesota...
  Northwestern Isanti County in east central Minnesota...

* Until 445 PM CDT

* At 349 PM CDT, a severe thunderstorm was located over Dalbo, or 12
  miles northwest of Cambridge, moving north at 20 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,
  Brunswick and Bock around 420 PM CDT. 
  Ogilvie around 430 PM CDT. 
  Mora around 440 PM CDT. 

Other locations impacted by this severe thunderstorm include Mora
Airport, Stanchfield, Lewis Lake and Dalbo.

This includes U.S. Highway 169 between mile markers 197 and 202.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4565 9315 4566 9355 4591 9371 4591 9315
TIME...MOT...LOC 2049Z 182DEG 15KT 4566 9341 

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

DWE

1 follow-up statement

468 
WWUS53 KMPX 292126
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
426 PM CDT TUE MAY 29 2018

MNC059-065-095-292135-
/O.CAN.KMPX.SV.W.0048.000000T0000Z-180529T2145Z/
Kanabec MN-Mille Lacs MN-Isanti MN-
426 PM CDT TUE MAY 29 2018

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN KANABEC...
SOUTHEASTERN MILLE LACS AND NORTHWESTERN ISANTI COUNTIES IS
CANCELLED...
        
The storm which prompted the warning has moved out of the area.
Therefore the warning has been cancelled.

A severe thunderstorm watch remains in effect until 800 PM CDT for
east central Minnesota.

LAT...LON 4565 9315 4566 9355 4591 9371 4591 9315
TIME...MOT...LOC 2125Z 182DEG 15KT 4581 9340 

$$

DWE

The office that day

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

Issued	Product	Office	Counties	Lasted
May 28, 7:01 PM CDT	Special Weather Statement	MPX	Benton	29 min
May 28, 7:06 PM CDT	Severe Thunderstorm Warning	MPX	Benton, Stearns	24 min
May 28, 7:29 PM CDT	Severe Thunderstorm Warning	MPX	Morrison, Stearns	31 min
May 28, 7:32 PM CDT	Severe Thunderstorm Warning	MPX	Mille Lacs	43 min
May 28, 9:11 PM CDT	Severe Thunderstorm Warning	MPX	Yellow Medicine	34 min
May 28, 9:14 PM CDT	Special Weather Statement	MPX	Chippewa	31 min
May 28, 10:23 PM CDT	Special Weather Statement	MPX	Lac qui Parle	37 min
May 29, 3:03 AM CDT	Heat Advisory	MPX	Anoka, Carver, Dakota, Hennepin, Ramsey, Scott and 1 more	14 hr
May 29, 12:42 PM CDT	Special Weather Statement	MPX	Redwood	33 min
May 29, 1:05 PM CDT	Special Weather Statement	MPX	Redwood	40 min
May 29, 1:26 PM CDT	Severe Thunderstorm Warning	MPX	Redwood, Renville, Yellow Medicine	49 min
May 29, 1:42 PM CDT	Special Weather Statement	MPX	Goodhue	63 min
May 29, 1:45 PM CDT	Special Weather Statement	MPX	Chippewa	3 hr
May 29, 1:50 PM CDT	Severe Thunderstorm Warning	MPX	Goodhue	40 min
May 29, 2:05 PM CDT	Special Weather Statement	MPX	Douglas, Pope, Todd	85 min
May 29, 2:19 PM CDT	Special Weather Statement	MPX	Redwood	86 min
May 29, 2:26 PM CDT	Severe Thunderstorm Warning	MPX	Dakota, Hennepin, Ramsey	34 min
May 29, 2:35 PM CDT	Special Weather Statement	MPX	Anoka, Chisago, Dakota, Ramsey, Washington	70 min
May 29, 3:06 PM CDT	Special Weather Statement	MPX	McLeod, Sibley	84 min
May 29, 3:14 PM CDT	Special Weather Statement	MPX	Goodhue	61 min
May 29, 3:16 PM CDT	Special Weather Statement	MPX	Benton, Kandiyohi, Meeker, Morrison, Stearns, Wright	89 min
May 29, 3:24 PM CDT	Special Weather Statement	MPX	Blue Earth, Brown, Le Sueur, Nicollet, Waseca, Watonwan	96 min
May 29, 3:29 PM CDT	Special Weather Statement	MPX	Chisago, Isanti, Sherburne	76 min
May 29, 3:39 PM CDT	Severe Thunderstorm Warning	MPX	Isanti	33 min
May 29, 3:43 PM CDT	Severe Thunderstorm Warning	MPX	McLeod	32 min
May 29, 4:24 PM CDT	Severe Thunderstorm Warning	MPX	Kanabec, Mille Lacs	51 min
May 29, 4:26 PM CDT	Severe Thunderstorm Warning	MPX	Sherburne, Wright	34 min
May 29, 5:37 PM CDT	Severe Thunderstorm Warning	MPX	Dakota, Rice, Scott	23 min
May 29, 6:06 PM CDT	Special Weather Statement	MPX	Steele	24 min
May 29, 6:27 PM CDT	Special Weather Statement	MPX	Nicollet	33 min
May 29, 6:30 PM CDT	Special Weather Statement	MPX	Watonwan	30 min
May 29, 6:36 PM CDT	Special Weather Statement	MPX	Freeborn	24 min
May 29, 6:41 PM CDT	Special Weather Statement	MPX	Martin	34 min
May 29, 6:48 PM CDT	Special Weather Statement	MPX	Martin	27 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.