Alert archive / Minnesota / Severe Thunderstorm Warnings in 2022

Severe Thunderstorm Warning 124, NWS Twin Cities, MN

May 12, 20224 counties in Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at May 12, 2022, 7:48 PM CDT for 4 counties in Minnesota. It was in force for 57 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 12, 2022, 7:48 PM CDT (00:48 UTC)
Expired: May 12, 2022, 8:45 PM CDT
In force: 57 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Benton County, MN, Isanti County, MN, Mille Lacs County, MN, Sherburne County, MN

The radar

The Minneapolis radar (KMPX), 91 km from the middle of the area, began a volume at 00:52 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 12, 7:53 PM CDT	TSTM WND GST 61	6 E St. Cloud, MN	ASOS STATION KSTC ST. CLOUD AP.

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 12, 5:35 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 0.8 hours before the alert went out and 90 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.

821 
WUUS53 KMPX 130048
SVRMPX
MNC009-059-095-141-130145-
/O.NEW.KMPX.SV.W.0124.220513T0048Z-220513T0145Z/

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

The National Weather Service in the Twin Cities has issued a

* Severe Thunderstorm Warning for...
  Southern Mille Lacs County in east central Minnesota...
  Isanti County in east central Minnesota...
  Benton County in central Minnesota...
  Sherburne County in central Minnesota...

* Until 845 PM CDT.

* At 748 PM CDT, severe thunderstorms were located along a line
  extending from near Rice to 6 miles east of Sauk Rapids to near
  Maple Lake, moving northeast at 55 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Severe thunderstorms will be near...
  Foley around 755 PM CDT.
  Zimmerman around 805 PM CDT.
  St. Francis, Milaca and Foreston around 810 PM CDT.
  Bock around 815 PM CDT.
  Cambridge and Isanti around 825 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This is a DANGEROUS SITUATION. These storms have been producing 
widespread wind damage. SEEK SHELTER NOW inside a sturdy structure 
and stay away from windows! 

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

&&

LAT...LON 4581 9352 4573 9351 4573 9315 4555 9314
      4555 9303 4541 9302 4542 9405 4550 9415
      4556 9415 4561 9420 4568 9419 4573 9422
      4573 9426 4578 9428 4582 9434
TIME...MOT...LOC 0048Z 240DEG 49KT 4579 9421 4561 9403 4526 9390 

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

$$

Borghoff

3 follow-up statements

152 
WWUS53 KMPX 130114
SVSMPX

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

MNC009-059-095-141-130145-
/O.CON.KMPX.SV.W.0124.000000T0000Z-220513T0145Z/
Mille Lacs MN-Isanti MN-Benton MN-Sherburne MN-
814 PM CDT Thu May 12 2022

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM CDT
FOR SOUTHERN MILLE LACS...ISANTI...BENTON AND NORTHERN SHERBURNE
COUNTIES...

At 814 PM CDT, severe thunderstorms were located along a line
extending from near Milaca to near St. Francis, moving east at 55
mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

These severe storms will be near...
  St. Francis around 820 PM CDT.
  Cambridge and Isanti around 825 PM CDT.
  East Bethel around 830 PM CDT.

Other locations impacted by these severe thunderstorms include
Sherburne National Wildlife Refuge, Mayhew, Glendorado, Parent,
Grandy, Gilman, Ronneby, Dalbo, Weber and Granite Ledge.

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 central and 
east central Minnesota.

&&

LAT...LON 4581 9352 4573 9351 4573 9315 4555 9314
      4555 9303 4541 9302 4542 9405 4544 9407
      4554 9408 4582 9420
TIME...MOT...LOC 0114Z 263DEG 48KT 4578 9361 4543 9348 

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

$$

Borghoff

798 
WWUS53 KMPX 130136
SVSMPX

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

MNC009-059-095-141-130145-
/O.CON.KMPX.SV.W.0124.000000T0000Z-220513T0145Z/
Mille Lacs MN-Isanti MN-Benton MN-Sherburne MN-
836 PM CDT Thu May 12 2022

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM CDT
FOR SOUTHERN MILLE LACS...ISANTI...EASTERN BENTON AND NORTHEASTERN
SHERBURNE COUNTIES...

At 836 PM CDT, severe thunderstorms were located along a line
extending from Brunswick to 5 miles northeast of East Bethel, moving
east at 45 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

These severe thunderstorms will remain over mainly rural areas of
southern Mille Lacs, Isanti, eastern Benton and northeastern
Sherburne Counties, including the following locations... Sherburne
National Wildlife Refuge, Orrock, Glendorado, Spencer Brook, Pease,
Oak Park, Athens, Stanchfield, Cambridge Airport and Princeton
Airport.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 4581 9352 4573 9351 4573 9315 4555 9314
      4555 9303 4541 9302 4543 9393 4554 9387
      4582 9387
TIME...MOT...LOC 0136Z 260DEG 39KT 4576 9328 4541 9315 

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

$$

Borghoff

510 
WWUS53 KMPX 130145
SVSMPX

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

MNC009-059-095-141-130155-
/O.EXP.KMPX.SV.W.0124.000000T0000Z-220513T0145Z/
Mille Lacs MN-Isanti MN-Benton MN-Sherburne MN-
845 PM CDT Thu May 12 2022

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN MILLE LACS...
ISANTI...EASTERN BENTON AND NORTHEASTERN SHERBURNE COUNTIES HAS
EXPIRED...
    
The gust front which prompted the warning has moved out of the area.
Therefore, the warning has been allowed to expire.  However, gusty 
winds are still possible with these thunderstorms.

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

LAT...LON 4581 9352 4573 9351 4573 9315 4555 9314
      4555 9303 4541 9302 4543 9393 4554 9387
      4582 9387
TIME...MOT...LOC 0145Z 240DEG 49KT 4581 9316 4546 9303 

$$

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, 7:55 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, 8:25 PM CDT	Severe Thunderstorm Warning	MPX	Anoka, Chisago, Dakota, Ramsey, Washington	39 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.