Alert archive / Minnesota / Special Weather Statements in 2020

Special Weather Statement, NWS Twin Cities, MN

July 18, 2020Anoka County, Minnesota

NWS Twin Cities, MN issued this special weather statement at Jul 18, 2020, 5:00 PM CDT for Anoka County, Minnesota. It was in force for 30 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 18, 2020, 5:00 PM CDT (22:00 UTC)
Expired: Jul 18, 2020, 5:30 PM CDT
In force: 30 min
Issued by: NWS Twin Cities, MN

County Anoka County, MN

The radar

The Minneapolis radar (KMPX), 55 km from the middle of the area, began a volume at 22:02 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 12:00Z, 10.0 hours before the alert went out and 56 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: 2513 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 356 m²/s²
0-3 km storm-relative helicity: 389 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 Jul 18, 2:30 PM CDT, 2 hours 30 minutes earlier.

Area forecast discussion, Jul 18, 2:30 PM CDT, 2 hours 30 minutes before

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  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
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</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>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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      <p id="message2">
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Hazardous weather outlook, Jul 18, 12:50 PM CDT, 4 hours 10 minutes before

Hazardous Weather Outlook
National Weather Service Twin Cities/Chanhassen MN
1250 PM CDT Sat Jul 18 2020

MNZ041>045-047>070-073>078-082>085-091>093-WIZ014>016-023>028-
191800-
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-
1250 PM CDT Sat Jul 18 2020

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

.DAY ONE...This Afternoon and Tonight.

Strong thunderstorms are expected to develop again this afternoon
into the evening. There is an Enhanced Risk of severe storms for
much of west central and central Minnesota into far west central
Wisconsin, with a Slight Risk of severe storms across the
remainder of the outlook area. The greatest severe risks are very
large hail and strong wind gusts, with a small risk of a tornado
as well. Heavy rainfall will also accompany the stronger storms.

Heat indices this afternoon will top out from 100 to 110 degrees
across much of central and southern Minnesota and west central
Wisconsin.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

There are occasional chances for thunderstorms Monday night
through Friday. The threat for severe weather next week is low at
this time.

.SPOTTER INFORMATION STATEMENT...

SKYWARN spotter activation will likely be needed this afternoon
and evening.

In the hours before

Local storm report, Jul 18, 1:34 PM CDT, 3 hours 26 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
134 PM CDT SAT JUL 18 2020

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

1225 AM     TSTM WND DMG     HANCOCK                 45.50N 95.79W
07/18/2020                   STEVENS            MN   PUBLIC

            SEVERAL 6-8 INCH TREE LIMBS DOWN.

&&

CEO

Local storm report, Jul 18, 2:01 PM CDT, 2 hours 59 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
201 PM CDT SAT JUL 18 2020

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

0300 AM     TSTM WND DMG     JORDAN                  44.68N 93.63W
07/18/2020                   SCOTT              MN   PUBLIC

            LARGE TREE DOWN OVER A HOME PORCH IN NEAR
            NORTH NEIGHBORHOOD. TIME ESTIMATED FROM
            RADAR.

&&

ETA

Local storm report, Jul 18, 4:58 PM CDT, 2 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
458 PM CDT SAT JUL 18 2020

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

0455 PM     HAIL             1 NW ROGERS             45.21N 93.57W
07/18/2020  M0.70 INCH       HENNEPIN           MN   TRAINED SPOTTER

&&

TDH

Special weather statement, Jul 18, 5:00 PM CDT, 0 minutes before

Special Weather Statement
National Weather Service Twin Cities/Chanhassen MN
500 PM CDT Sat Jul 18 2020

MNZ051-059>061-182230-
Anoka-Hennepin-Sherburne-Wright-
500 PM CDT Sat Jul 18 2020

...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN WRIGHT...NORTH
CENTRAL HENNEPIN...NORTHERN ANOKA AND SOUTHEASTERN SHERBURNE
COUNTIES...

At 459 PM CDT, a strong thunderstorm was located over Rogers, or 17
miles east of Buffalo, moving northeast at 30 mph.

Dime size hail is possible with this storm.

This storm will be near...
  Champlin around 505 PM CDT.
  Ramsey and Anoka around 510 PM CDT.
  Andover around 515 PM CDT.
  Ham Lake around 525 PM CDT.
  East Bethel around 530 PM CDT.

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 4541 9302 4515 9347 4521 9368 4542 9348
TIME...MOT...LOC 2159Z 225DEG 27KT 4522 9352

BORGHOFF

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 17, 9:08 PM CDT	Special Weather Statement	MPX	Douglas	67 min
Jul 17, 9:22 PM CDT	Severe Thunderstorm Warning	MPX	Todd	53 min
Jul 17, 10:13 PM CDT	Severe Thunderstorm Warning	MPX	Morrison, Todd	62 min
Jul 17, 10:16 PM CDT	Tornado Warning	MPX	Morrison, Todd	44 min
Jul 17, 10:20 PM CDT	Severe Thunderstorm Warning	MPX	Douglas	55 min
Jul 17, 10:54 PM CDT	Severe Thunderstorm Warning	MPX	Douglas, Pope, Stevens	66 min
Jul 17, 10:58 PM CDT	Severe Thunderstorm Warning	MPX	Mille Lacs, Morrison, Stearns, Todd	77 min
Jul 17, 11:51 PM CDT	Tornado Warning	MPX	Pope, Stearns, Swift	28 min
Jul 17, 11:58 PM CDT	Severe Thunderstorm Warning	MPX	Benton, Kandiyohi, Morrison, Stearns	77 min
Jul 18, 12:13 AM CDT	Special Weather Statement	MPX	Kanabec, Mille Lacs	62 min
Jul 18, 12:26 AM CDT	Severe Thunderstorm Warning	MPX	Benton, Isanti, Meeker, Mille Lacs, Sherburne, Stearns and 1 more	49 min
Jul 18, 12:32 AM CDT	Special Weather Statement	MPX	Lac qui Parle, Swift	43 min
Jul 18, 12:44 AM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Kandiyohi, Lac qui Parle, Renville, Swift, Yellow Medicine	61 min
Jul 18, 1:03 AM CDT	Tornado Warning	MPX	Chisago, Isanti, Kanabec	27 min
Jul 18, 1:16 AM CDT	Severe Thunderstorm Warning	MPX	Kandiyohi, Meeker, Stearns	44 min
Jul 18, 1:19 AM CDT	Special Weather Statement	MPX	Anoka, Chisago, Hennepin, Isanti, Wright	56 min
Jul 18, 1:38 AM CDT	Special Weather Statement	MPX	McLeod, Meeker, Redwood, Renville	52 min
Jul 18, 3:03 AM CDT	Severe Thunderstorm Warning	MPX	Carver, Dakota, Hennepin, Scott, Washington	42 min
Jul 18, 3:43 AM CDT	Special Weather Statement	MPX	Goodhue, Rice	32 min
Jul 18, 4:06 AM CDT	Special Weather Statement	MPX	Watonwan	39 min
Jul 18, 5:09 AM CDT	Special Weather Statement	MPX	Freeborn, Steele, Waseca	66 min
Jul 18, 5:23 PM CDT	Severe Thunderstorm Warning	MPX	Anoka	52 min
Jul 18, 5:48 PM CDT	Tornado Warning	MPX	Anoka	42 min
Jul 18, 6:07 PM CDT	Tornado Warning	MPX	Washington	38 min
Jul 18, 1:36 AM CDT	Special Weather Statement	MPX	Polk	39 min
Jul 18, 3:44 AM CDT	Special Weather Statement	MPX	Chippewa, Rusk	46 min
Jul 18, 4:15 AM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Eau Claire	29 min
Jul 18, 6:35 PM CDT	Severe Thunderstorm Warning	MPX	Polk, Saint Croix	34 min

Nearby

Special Weather Statements in Minnesota, 2020 Every special weather statement in 2020

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.