Alert archive / Minnesota / Severe Thunderstorm Warnings in 2022

Severe Thunderstorm Warning 126, NWS Twin Cities, MN

May 12, 20225 counties in Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at May 12, 2022, 8:25 PM CDT for 5 counties in Minnesota. It was in force for 39 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 12, 2022, 8:25 PM CDT (01:25 UTC)
Expired: May 12, 2022, 9:04 PM CDT
In force: 39 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Anoka County, MN, Chisago County, MN, Dakota County, MN, Ramsey County, MN, Washington County, MN

The radar

The Minneapolis radar (KMPX), 56 km from the middle of the area, began a volume at 01:26 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 12, 5:35 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 1.4 hours before the alert went out and 58 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: 1318 J/kg
Mixed-layer CIN: -157 J/kg
Mixed-layer LCL: 2443 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 152 m²/s²
0-3 km storm-relative helicity: 259 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.9

Open this sounding in Storm Lab

The text

As transmitted.

744 
WUUS53 KMPX 130125
SVRMPX
MNC003-025-037-123-163-130215-
/O.NEW.KMPX.SV.W.0126.220513T0125Z-220513T0215Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
825 PM CDT Thu May 12 2022

The National Weather Service in the Twin Cities has issued a

* Severe Thunderstorm Warning for...
  Dakota County in east central Minnesota...
  Chisago County in east central Minnesota...
  Northeastern Anoka County in east central Minnesota...
  Washington County in east central Minnesota...
  Ramsey County in east central Minnesota...

* Until 915 PM CDT.

* At 823 PM CDT, a gust front was located along a line extending 
  from 7 miles east of Princeton to Anoka to near Plymouth to 5 
  miles east of New Prague, moving east at 50 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated. At 819 PM CDT, a 67 mph wind gust was 
           reported 1 mile west southwest of Shakopee.

  IMPACT...Expect damage to roofs, siding, and trees.

* Severe thunderstorms will be near... Minneapolis, Columbia Heights 
  and Ham Lake around 830 PM CDT.
  Blaine, Roseville, New Brighton, Lino Lakes and Mounds View around 
  835 PM CDT.
  Shoreview and Arden Hills around 840 PM CDT.
  St. Paul, Maplewood, Farmington, Hugo and Vadnais Heights around 
  845 PM CDT.
  Oakdale, White Bear Lake, Forest Lake, North Branch and Mahtomedi 
  around 850 PM CDT.
  Lake Elmo, Chisago City, Cannon Falls and Rush City around 855 PM 
  CDT.
  Stillwater, Lindstrom, Scandia, Bayport and Center City around 900 
  PM CDT.

Thunderstorms with heavy rain will follow the gust front by up to 30 
minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Wind damage with these storms will occur before any rain or
lightning. Do not wait for the sound of thunder before taking cover.
SEEK SHELTER IMMEDIATELY inside a sturdy structure and stay away from
windows.

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

&&

LAT...LON 4558 9288 4555 9274 4545 9265 4507 9280
      4494 9275 4475 9281 4463 9273 4463 9279
      4454 9280 4452 9304 4447 9305 4447 9328
      4478 9332 4488 9318 4541 9319 4541 9302
      4555 9303 4556 9314 4573 9314 4573 9285
TIME...MOT...LOC 0124Z 261DEG 42KT 4560 9341 4524 9335 4502 9338 4456
9344

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...OBSERVED
MAX WIND GUST...60 MPH

$$

Borghoff

2 follow-up statements

614 
WWUS53 KMPX 130141
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
841 PM CDT Thu May 12 2022

MNC003-025-037-123-163-130215-
/O.CON.KMPX.SV.W.0126.000000T0000Z-220513T0215Z/
Dakota MN-Chisago MN-Anoka MN-Washington MN-Ramsey MN-
841 PM CDT Thu May 12 2022

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 915 PM CDT
FOR DAKOTA...CHISAGO...NORTHEASTERN ANOKA...WASHINGTON AND RAMSEY
COUNTIES...

At 840 PM CDT, a gust front was located along a line extending from 
6 miles northeast of Cambridge to near Ham Lake to near Roseville to 
near Elko New Market, moving east at 50 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

The gust front will be near...  
  Maplewood, Lino Lakes, Hugo and Vadnais Heights around 845 PM CDT.
  Oakdale, White Bear Lake, Forest Lake, North Branch and Mahtomedi 
  around 850 PM CDT.
  Lake Elmo, Chisago City and Rush City around 855 PM CDT.
  Stillwater, Lindstrom, Cannon Falls, Scandia and Bayport around 
  900 PM CDT.
  Hudson and Osceola around 905 PM CDT.
  Taylors Falls around 910 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Wind damage with these storms will occur before any rain or
lightning. Do not wait for the sound of thunder before taking cover.
SEEK SHELTER IMMEDIATELY inside a sturdy structure and stay away from
windows.

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

&&

LAT...LON 4558 9288 4555 9274 4545 9265 4507 9280
      4494 9275 4475 9281 4463 9273 4463 9279
      4454 9280 4452 9304 4447 9305 4447 9328
      4478 9332 4488 9318 4541 9319 4541 9302
      4555 9303 4556 9314 4573 9314 4573 9285
TIME...MOT...LOC 0140Z 260DEG 42KT 4562 9317 4526 9311 4504 9315 4454
9325

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Borghoff

285 
WWUS53 KMPX 130204
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
904 PM CDT Thu May 12 2022

MNC003-025-037-123-163-130214-
/O.CAN.KMPX.SV.W.0126.000000T0000Z-220513T0215Z/
Dakota MN-Chisago MN-Anoka MN-Washington MN-Ramsey MN-
904 PM CDT Thu May 12 2022

...THE SEVERE THUNDERSTORM WARNING FOR DAKOTA...CHISAGO...
NORTHEASTERN ANOKA...WASHINGTON AND RAMSEY COUNTIES IS CANCELLED...
            
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning has been cancelled.  However gusty winds are
still possible with these thunderstorms.

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

LAT...LON 4558 9288 4555 9274 4545 9265 4507 9280
      4494 9275 4475 9281 4463 9273 4463 9279
      4454 9280 4452 9304 4447 9305 4447 9328
      4478 9332 4488 9318 4541 9319 4541 9302
      4555 9303 4556 9314 4573 9314 4573 9285
TIME...MOT...LOC 0203Z 261DEG 42KT 4566 9278 4530 9272 4508 9276 4458
9287

$$

Borghoff

The office that day

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

Issued	Product	Office	Counties	Lasted
May 12, 7:00 PM CDT	Severe Thunderstorm Warning Destructive damage threat	MPX	Chippewa, Douglas, Kandiyohi, Pope, Stevens, Swift	45 min
May 12, 7:02 PM CDT	Severe Thunderstorm Warning	MPX	Blue Earth, Faribault, Martin, Watonwan	58 min
May 12, 7:08 PM CDT	Severe Thunderstorm Warning Considerable damage threat	MPX	Benton, Meeker, Morrison, Sherburne, Stearns, Todd and 1 more	67 min
May 12, 7:09 PM CDT	Tornado Warning	MPX	Douglas	21 min
May 12, 7:14 PM CDT	Tornado Warning	MPX	Kandiyohi, Stearns	16 min
May 12, 7:31 PM CDT	Severe Thunderstorm Warning Considerable damage threat	MPX	Morrison, Todd	44 min
May 12, 7:32 PM CDT	Tornado Warning	MPX	Todd	13 min
May 12, 7:36 PM CDT	Tornado Warning	MPX	Morrison, Stearns	9 min
May 12, 7:44 PM CDT	Tornado Warning	MPX	Benton, Morrison, Stearns	16 min
May 12, 7:45 PM CDT	Severe Thunderstorm Warning	MPX	Anoka, Carver, Hennepin, McLeod, Meeker, Scott and 3 more	60 min
May 12, 7:48 PM CDT	Severe Thunderstorm Warning	MPX	Benton, Isanti, Mille Lacs, Sherburne	57 min
May 12, 7:55 PM CDT	Tornado Warning	MPX	Benton, Morrison	20 min
May 12, 7:56 PM CDT	Tornado Warning	MPX	Morrison	19 min
May 12, 8:03 PM CDT	Tornado Warning	MPX	Morrison	12 min
May 12, 8:06 PM CDT	Severe Thunderstorm Warning	MPX	Kanabec, Mille Lacs, Morrison	54 min
May 12, 8:35 PM CDT	Special Weather Statement	MPX	Morrison	85 min
May 12, 8:54 PM CDT	Severe Thunderstorm Warning	MPX	Redwood, Yellow Medicine	36 min
May 12, 9:03 PM CDT	Severe Thunderstorm Warning	MPX	Brown, Redwood	27 min
May 12, 9:17 PM CDT	Special Weather Statement	MPX	Chippewa	28 min
May 12, 10:17 PM CDT	Special Weather Statement	MPX	Benton	28 min
May 13, 3:07 AM CDT	River Flood Warning	MPX	Mille Lacs	11 hr
May 13, 9:11 AM CDT	River Flood Warning	MPX	Sherburne, Stearns, Wright	21 days
May 13, 9:13 AM CDT	River Flood Warning	MPX	Stearns	21 days
May 13, 9:18 AM CDT	River Flood Warning	MPX	Todd	67 hr
May 13, 1:53 PM CDT	River Flood Warning	MPX	Kanabec	58 hr
May 13, 2:50 PM CDT	River Flood Warning	MPX	Anoka, Hennepin	21 days

Nearby

Severe Thunderstorm Warnings in Minnesota, 2022 Every severe thunderstorm warning in 2022

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.