Alert archive / Minnesota / Special Weather Statements in 2022

Special Weather Statement, NWS Twin Cities, MN

July 21, 2022Brown County, Minnesota

NWS Twin Cities, MN issued this special weather statement at Jul 21, 2022, 1:42 AM CDT for Brown County, Minnesota. It was in force for 33 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 21, 2022, 1:42 AM CDT (06:42 UTC)
Expired: Jul 21, 2022, 2:15 AM CDT
In force: 33 min
Issued by: NWS Twin Cities, MN
Hail: 0.75 in
Wind: 50

County Brown County, MN

The radar

The Minneapolis radar (KMPX), 104 km from the middle of the area, began a volume at 06:45 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, 6.7 hours before the alert went out and 101 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: 90 J/kg
Mixed-layer CIN: -64 J/kg
Mixed-layer LCL: 1922 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 110 m²/s²
0-3 km storm-relative helicity: 161 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

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 Jul 20, 11:04 PM CDT, 2 hours 38 minutes earlier.

Area forecast discussion, Jul 20, 11:04 PM CDT, 2 hours 38 minutes before

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<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
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  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
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      <p id="message2">
        Please try again in a few minutes.
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Hazardous weather outlook, Jul 20, 3:20 PM CDT, 10 hours 22 minutes before

Hazardous Weather Outlook
National Weather Service Twin Cities/Chanhassen MN
320 PM CDT Wed Jul 20 2022

MNZ041>045-047>070-073>078-082>085-091>093-WIZ014>016-023>028-
212030-
Douglas-Todd-Morrison-Mille Lacs-Kanabec-Stevens-Pope-Stearns-
Benton-Sherburne-Isanti-Chisago-Lac Qui Parle-Swift-Chippewa-
Kandiyohi-Meeker-Wright-Hennepin-Anoka-Ramsey-Washington-
Yellow Medicine-Renville-McLeod-Sibley-Carver-Scott-Dakota-
Redwood-Brown-Nicollet-Le Sueur-Rice-Goodhue-Watonwan-Blue Earth-
Waseca-Steele-Martin-Faribault-Freeborn-Polk-Barron-Rusk-
St. Croix-Pierce-Dunn-Pepin-Eau Claire-
320 PM CDT Wed Jul 20 2022

This Hazardous Weather Outlook is for portions of central and
southern Minnesota, and west central Wisconsin.

.DAY ONE...Tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Heat and humidity will impact the area Friday afternoon as
temperatures rise into the 90s. This weekend, thunderstorms
are possible at times, with the greatest chances Saturday
afternoon into Saturday night. Widespread severe weather is not
expected at this time.

.SPOTTER INFORMATION STATEMENT...

SKYWARN spotter activation will not be needed.

In the hours before

Special weather statement, Jul 20, 9:30 PM CDT, 4 hours 12 minutes before

Special Weather Statement
National Weather Service Twin Cities/Chanhassen MN
930 PM CDT Wed Jul 20 2022

MNZ054-064-210315-
Yellow Medicine MN-Lac Qui Parle MN-
930 PM CDT Wed Jul 20 2022

...A strong thunderstorm will impact portions of southwestern Lac qui
Parle and central Yellow Medicine Counties through 1015 PM CDT...

At 929 PM CDT, Doppler radar was tracking a strong thunderstorm near
Dawson, or 22 miles west of Montevideo, moving southeast at 45 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.

This strong thunderstorm will be near...
  Dawson around 935 PM CDT.

This includes the following highways...
 U.S. Highway 212 between mile markers 8 and 18.
 U.S. Highway 75 between mile markers 97 and 107.
 U.S. Highway 59 between mile markers 87 and 95.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

LAT...LON 4500 9618 4463 9560 4462 9561 4463 9563
      4463 9600 4495 9632
TIME...MOT...LOC 0229Z 309DEG 41KT 4492 9617

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

ETA

Special weather statement, Jul 20, 9:40 PM CDT, 4 hours 2 minutes before

Special Weather Statement
National Weather Service Twin Cities/Chanhassen MN
940 PM CDT Wed Jul 20 2022

MNZ047-210330-
Stevens MN-
940 PM CDT Wed Jul 20 2022

...A strong thunderstorm will impact portions of northern Stevens
County through 1030 PM CDT...

At 940 PM CDT, Doppler radar was tracking a strong thunderstorm 6
miles southwest of Herman, or 13 miles east of Wheaton, moving east
at 35 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.

This strong thunderstorm will be near...
  Donnelly around 955 PM CDT.

Other locations in the path of this storm include Morris.

This includes U.S. Highway 59 between mile markers 164 and 175.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4575 9625 4576 9610 4570 9576 4552 9574
      4550 9576 4569 9626
TIME...MOT...LOC 0240Z 289DEG 30KT 4575 9623

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

ETA

Special weather statement, Jul 20, 11:16 PM CDT, 2 hours 26 minutes before

Special Weather Statement
National Weather Service Twin Cities/Chanhassen MN
1116 PM CDT Wed Jul 20 2022

MNZ054-056-210445-
Chippewa MN-Lac Qui Parle MN-
1116 PM CDT Wed Jul 20 2022

...A strong thunderstorm will impact portions of central Lac qui
Parle and northwestern Chippewa Counties through 1145 PM CDT...

At 1116 PM CDT, Doppler radar was tracking a strong thunderstorm near
Bellingham, or 9 miles southeast of Ortonville, moving southeast at
40 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.

This strong thunderstorm will be near...
  Bellingham around 1125 PM CDT.

Other locations in the path of this storm include Milan.

This includes the following highways...
 U.S. Highway 212 between mile markers 22 and 23.
 U.S. Highway 75 between mile markers 114 and 126.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4526 9637 4522 9622 4519 9617 4518 9611
      4516 9606 4516 9601 4511 9585 4492 9599
      4515 9640
TIME...MOT...LOC 0416Z 298DEG 35KT 4519 9634

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

TDH

Local storm report, Jul 21, 1:41 AM CDT, 1 minute before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
141 AM CDT THU JUL 21 2022

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0135 AM     HAIL             RENVILLE                44.79N 95.21W
07/21/2022  M0.70 INCH       RENVILLE           MN   TRAINED SPOTTER

&&

TDH

Special weather statement, Jul 21, 1:42 AM CDT, 0 minutes before

Special Weather Statement
National Weather Service Twin Cities/Chanhassen MN
142 AM CDT Thu Jul 21 2022

MNZ065-067-073>075-210715-
Brown MN-Sibley MN-Renville MN-Nicollet MN-Redwood MN-
142 AM CDT Thu Jul 21 2022

...A strong thunderstorm will impact portions of southwestern Sibley,
northeastern Redwood, northeastern Brown, southeastern Renville and
northwestern Nicollet Counties through 215 AM CDT...

At 142 AM CDT, Doppler radar was tracking a strong thunderstorm near
Morton, or 9 miles northeast of Redwood Falls, moving east at 45 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.

This strong thunderstorm will be near...
  Fairfax around 200 AM CDT.

Other locations in the path of this storm include Gibbon.

This includes U.S. Highway 71 between mile markers 82 and 90.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4447 9489 4453 9502 4468 9501 4463 9440
      4434 9455
TIME...MOT...LOC 0642Z 286DEG 40KT 4460 9494

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

TDH

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 20, 9:30 PM CDT	Special Weather Statement	MPX	Yellow Medicine	45 min
Jul 20, 9:40 PM CDT	Special Weather Statement	MPX	Stevens	50 min
Jul 20, 10:04 PM CDT	Severe Thunderstorm Warning	MPX	Pope, Stevens	41 min
Jul 20, 11:16 PM CDT	Special Weather Statement	MPX	Lac qui Parle	29 min
Jul 21, 2:53 AM CDT	Special Weather Statement	MPX	Sibley	37 min
Jul 21, 3:49 AM CDT	Special Weather Statement	MPX	Goodhue	26 min

Nearby

Special Weather Statements in Minnesota, 2022 Every special weather statement 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.