Alert archive / Minnesota / Special Weather Statements in 2023

Special Weather Statement, NWS Twin Cities, MN

May 11, 2023Freeborn County, Steele County, Waseca County, Minnesota

NWS Twin Cities, MN issued this special weather statement at May 11, 2023, 5:02 AM CDT for Freeborn County, Steele County, Waseca County, Minnesota. It was in force for 88 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 11, 2023, 5:02 AM CDT (10:02 UTC)
Expired: May 11, 2023, 6:30 AM CDT
In force: 88 min
Issued by: NWS Twin Cities, MN

Counties Freeborn County, MN, Steele County, MN, Waseca County, MN

The radar

The Minneapolis radar (KMPX), 115 km from the middle of the area, began a volume at 10:01 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 nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 10.0 hours before the alert went out and 115 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2264 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 8 m²/s²
0-3 km storm-relative helicity: 67 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Twin Cities, MN wrote its last area forecast discussion before this special weather statement went out at May 11, 3:32 AM CDT, 1 hour 30 minutes earlier.

Area forecast discussion, May 11, 3:32 AM CDT, 1 hour 30 minutes before

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Hazardous weather outlook, May 11, 3:51 AM CDT, 1 hour 11 minutes before

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In the hours before

Special weather statement, May 11, 12:27 AM CDT, 4 hours 35 minutes before

Special Weather Statement
National Weather Service Twin Cities/Chanhassen MN
1227 AM CDT Thu May 11 2023

MNZ074-075-110600-
Brown MN-Nicollet MN-
1227 AM CDT Thu May 11 2023

...Strong thunderstorms will impact portions of Brown and
northwestern Nicollet Counties through 100 AM CDT...

At 1227 AM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Fairfax to Comfrey. Movement was east at
15 mph.

HAZARD...Winds in excess of 40 mph and nickel size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

These storms will remain over mainly rural areas of Brown and
northwestern Nicollet Counties, including the following locations...
Essig, New Ulm Airport, Cobden, St George, Fort Ridgely State Park
and Evan.

This includes U.S. Highway 14 between mile markers 81 and 102.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with these storms and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 4428 9488 4428 9486 4431 9487 4446 9480
      4445 9440 4411 9459 4411 9495
TIME...MOT...LOC 0527Z 261DEG 14KT 4447 9470 4411 9491

MAX HAIL SIZE...0.88 IN
MAX WIND GUST...40 MPH

Dye

Special weather statement, May 11, 1:02 AM CDT, 4 hours before

Special Weather Statement
National Weather Service Twin Cities/Chanhassen MN
102 AM CDT Thu May 11 2023

MNZ074-075-082-083-110645-
Brown MN-Blue Earth MN-Watonwan MN-Nicollet MN-
102 AM CDT Thu May 11 2023

...Strong thunderstorms will impact portions of southeastern Brown,
northwestern Blue Earth, Watonwan and Nicollet Counties through 145
AM CDT...

At 102 AM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from Lafayette to 6 miles northwest of St. James.
Movement was east at 30 mph.

HAZARD...Winds in excess of 40 mph and nickel size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Strong thunderstorms will be near...
  Lafayette around 110 AM CDT.
  Hanska around 120 AM CDT.

Other locations in the path of these storms include Madelia,
Lewisville and Lake Crystal.

This includes U.S. Highway 14 between mile markers 87 and 123.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with these storms and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 4397 9486 4411 9486 4411 9491 4446 9463
      4445 9394 4385 9439
TIME...MOT...LOC 0602Z 278DEG 26KT 4445 9438 4406 9470

MAX HAIL SIZE...0.88 IN
MAX WIND GUST...40 MPH

Dye

Special weather statement, May 11, 1:49 AM CDT, 3 hours 13 minutes before

Special Weather Statement
National Weather Service Twin Cities/Chanhassen MN
149 AM CDT Thu May 11 2023

MNZ074-075-082-083-091-092-110715-
Brown MN-Blue Earth MN-Watonwan MN-Martin MN-Nicollet MN-
Faribault MN-
149 AM CDT Thu May 11 2023

...Strong thunderstorms will impact portions of northwestern
Faribault, Martin, southeastern Brown, Blue Earth, Watonwan and
southeastern Nicollet Counties through 215 AM CDT...

At 149 AM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Nicollet to 7 miles northwest of Trimont.
Movement was southeast at 25 mph.

HAZARD...Wind gusts up to 50 mph and nickel size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Strong thunderstorms will be near...
  North Mankato, Lake Crystal and Trimont around 205 AM CDT.

Other locations in the path of these storms include Mankato,
Sherburn, Welcome and Good Thunder.

This includes the following highways...
 Interstate 90 between mile markers 82 and 103.
 U.S. Highway 14 between mile markers 115 and 130.
 U.S. Highway 169 between mile markers 22 and 56.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with these storms and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 4391 9486 4431 9420 4404 9376 4395 9377
      4350 9484 4351 9485
TIME...MOT...LOC 0649Z 328DEG 23KT 4423 9417 4383 9483

MAX HAIL SIZE...0.88 IN
MAX WIND GUST...50 MPH

Dye

Special weather statement, May 11, 2:15 AM CDT, 2 hours 47 minutes before

Special Weather Statement
National Weather Service Twin Cities/Chanhassen MN
215 AM CDT Thu May 11 2023

MNZ075-082>084-091-092-110800-
Waseca MN-Blue Earth MN-Watonwan MN-Martin MN-Nicollet MN-
Faribault MN-
215 AM CDT Thu May 11 2023

...Strong thunderstorms will impact portions of northwestern
Faribault, northeastern Martin, Blue Earth, Watonwan, central Waseca
and southeastern Nicollet Counties through 300 AM CDT...

At 215 AM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from Mankato to 6 miles southeast of Madelia to near
Mountain Lake. Movement was east at 25 mph.

HAZARD...Wind gusts up to 50 mph and penny size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Strong thunderstorms will be near...
  Mankato, North Mankato and Lake Crystal around 220 AM CDT.
  Eagle Lake around 230 AM CDT.
  Vernon Center around 235 AM CDT.

Other locations in the path of these storms include St. Clair, Amboy,
Good Thunder, Janesville, Pemberton, Mapleton and Truman.

This includes the following highways...
 U.S. Highway 14 between mile markers 123 and 150, and between mile
markers 156 and 159.
 U.S. Highway 169 between mile markers 24 and 58.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with these storms and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 4385 9486 4396 9485 4408 9443 4426 9406
      4404 9346 4389 9382 4372 9461
TIME...MOT...LOC 0715Z 288DEG 20KT 4417 9398 4401 9430 4389 9491

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...50 MPH

Dye

Special weather statement, May 11, 3:28 AM CDT, 1 hour 34 minutes before

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Special weather statement, May 11, 5:02 AM CDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
May 11, 12:05 AM CDT	Special Weather Statement	MPX	Brown	25 min
May 11, 12:27 AM CDT	Special Weather Statement	MPX	Brown	33 min
May 11, 1:02 AM CDT	Special Weather Statement	MPX	Brown, Nicollet, Watonwan	43 min
May 11, 1:49 AM CDT	Special Weather Statement	MPX	Blue Earth, Martin, Watonwan	26 min
May 11, 2:15 AM CDT	Special Weather Statement	MPX	Blue Earth, Waseca, Watonwan	45 min
May 11, 5:29 AM CDT	Special Weather Statement	MPX	Blue Earth, Brown, Faribault, Redwood, Watonwan	91 min
May 11, 6:30 AM CDT	Special Weather Statement	MPX	Freeborn, Waseca	90 min
May 11, 7:03 AM CDT	Special Weather Statement	MPX	Blue Earth, Brown, Faribault, Redwood, Watonwan	87 min
May 11, 7:58 AM CDT	Flash Flood Warning	MPX	Freeborn, Waseca	6 hr
May 11, 8:28 AM CDT	Special Weather Statement	MPX	Faribault, Freeborn, Martin, Steele	92 min
May 11, 8:37 AM CDT	Special Weather Statement	MPX	Blue Earth, Brown, Redwood, Waseca, Watonwan	83 min
May 11, 12:17 PM CDT	River Flood Warning	MPX	Redwood, Renville	9 days

Nearby

Special Weather Statements in Minnesota, 2023 Every special weather statement in 2023

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.