Alert archive / Minnesota / Special Weather Statements in 2023

Special Weather Statement, NWS Twin Cities, MN

July 27, 2023Chisago County, Minnesota

NWS Twin Cities, MN issued this special weather statement at Jul 27, 2023, 6:09 AM CDT for Chisago County, Minnesota. It was in force for 36 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 27, 2023, 6:09 AM CDT (11:09 UTC)
Expired: Jul 27, 2023, 6:45 AM CDT
In force: 36 min
Issued by: NWS Twin Cities, MN
Hail: 0.75 in
Wind: 40

County Chisago County, MN

The radar

The Minneapolis radar (KMPX), 95 km from the middle of the area, began a volume at 11:11 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, 11.2 hours before the alert went out and 96 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: 2579 J/kg
Mixed-layer CIN: -62 J/kg
Mixed-layer LCL: 1345 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 7 m²/s²
0-3 km storm-relative helicity: 43 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

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 27, 3:29 AM CDT, 2 hours 40 minutes earlier.

Area forecast discussion, Jul 27, 3:29 AM CDT, 2 hours 40 minutes before

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        The site you requested is temporarily down for maintenance or an unexpected outage.
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Hazardous weather outlook, Jul 27, 3:02 AM CDT, 3 hours 7 minutes before

Hazardous Weather Outlook
National Weather Service Twin Cities/Chanhassen MN
302 AM CDT Thu Jul 27 2023

MNZ060>063-067>070-075-076-083-280815-
Hennepin-Anoka-Ramsey-Washington-Sibley-Carver-Scott-Dakota-
Nicollet-Le Sueur-Blue Earth-
302 AM CDT Thu Jul 27 2023

This Hazardous Weather Outlook is for portions of central
Minnesota...east central Minnesota and south central Minnesota.

.DAY ONE...Tonight.

Excessive heat is expected today with Heat Index values around
105 degrees this afternoon.

Severe thunderstorms are possible late this afternoon through the
overnight hours. Large hail & damaging winds are the main hazards,
along with locally heavy rain.

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

Thunderstorms are possible Friday, along with the chance for
isolated severe weather.

.SPOTTER INFORMATION STATEMENT...

SKYWARN spotter activation will not be needed.

MNZ041>045-047>059-064>066-073-074-077-078-082-084-085-091>093-
WIZ014>016-023>028-280815-
Douglas-Todd-Morrison-Mille Lacs-Kanabec-Stevens-Pope-Stearns-
Benton-Sherburne-Isanti-Chisago-Lac Qui Parle-Swift-Chippewa-
Kandiyohi-Meeker-Wright-Yellow Medicine-Renville-McLeod-Redwood-
Brown-Rice-Goodhue-Watonwan-Waseca-Steele-Martin-Faribault-
Freeborn-Polk-Barron-Rusk-St. Croix-Pierce-Dunn-Pepin-Eau Claire-
302 AM CDT Thu Jul 27 2023

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

.DAY ONE...Tonight.

Hot and humid again today with heat index values around 100 this
afternoon.

Severe thunderstorms are possible late this afternoon through the
overnight hours. Large hail & damaging winds are the main hazards,
along with locally heavy rain.

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

Thunderstorms are possible Friday, along with the chance for
isolated severe weather.

.SPOTTER INFORMATION STATEMENT...

SKYWARN spotter activation will not be needed.

In the hours before

Special weather statement, Jul 27, 5:31 AM CDT, 38 minutes before

Special Weather Statement
National Weather Service Twin Cities/Chanhassen MN
531 AM CDT Thu Jul 27 2023

MNZ044-045-052-271100-
Isanti MN-Mille Lacs MN-Kanabec MN-
531 AM CDT Thu Jul 27 2023

...A strong thunderstorm will impact portions of southern Kanabec,
southeastern Mille Lacs and northwestern Isanti Counties through 600
AM CDT...

At 531 AM CDT, Doppler radar was tracking a strong thunderstorm over
Bock, or 20 miles northwest of Cambridge, moving east at 35 mph.

HAZARD...Penny size hail.

SOURCE...Radar indicated.

IMPACT...Minor damage to outdoor objects is possible.

This strong thunderstorm will be near...
  Ogilvie around 540 AM CDT.
  Mora around 550 AM CDT.

Other locations in the path of this storm include Brunswick and
Grasston.

This includes U.S. Highway 169 between mile markers 184 and 192.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4565 9364 4583 9365 4588 9314 4562 9314
TIME...MOT...LOC 1031Z 268DEG 31KT 4575 9354

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...<30 MPH

NDC

Special weather statement, Jul 27, 6:09 AM CDT, 0 minutes before

Special Weather Statement
National Weather Service Twin Cities/Chanhassen MN
609 AM CDT Thu Jul 27 2023

MNZ052-053-WIZ014-271145-
Isanti MN-Chisago MN-Polk WI-
609 AM CDT Thu Jul 27 2023

...A strong thunderstorm will impact portions of northern Chisago,
northeastern Isanti and northwestern Polk Counties through 645 AM
CDT...

At 608 AM CDT, Doppler radar was tracking a strong thunderstorm 8
miles northeast of Cambridge, moving east at 35 mph.

HAZARD...Winds in excess of 40 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...
  North Branch around 625 AM CDT.

This includes Interstate 35 between mile markers 145 and 159.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4560 9272 4542 9290 4560 9327 4572 9315
TIME...MOT...LOC 1108Z 289DEG 33KT 4564 9315

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...40 MPH

Dye

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 27, 5:31 AM CDT	Special Weather Statement	MPX	Isanti	29 min
Jul 27, 6:28 AM CDT	Severe Thunderstorm Warning	MPX	Chisago	32 min
Jul 27, 6:57 AM CDT	Severe Thunderstorm Warning	MPX	Chisago	33 min
Jul 27, 9:04 AM CDT	Heat Advisory	MPX	Watonwan	3 hr
Jul 27, 2:41 PM CDT	Special Weather Statement	MPX	Mille Lacs	49 min
Jul 27, 2:49 PM CDT	Severe Thunderstorm Warning Considerable damage threat	MPX	Kanabec, Mille Lacs	41 min
Jul 27, 3:33 PM CDT	Severe Thunderstorm Warning Considerable damage threat	MPX	Chisago	42 min
Jul 27, 3:48 PM CDT	Severe Thunderstorm Warning	MPX	Kandiyohi, Meeker, Stearns	28 min
Jul 27, 3:57 PM CDT	Severe Thunderstorm Warning Considerable damage threat	MPX	Kanabec	33 min
Jul 27, 4:13 PM CDT	Severe Thunderstorm Warning Considerable damage threat	MPX	Chisago	47 min
Jul 27, 4:29 PM CDT	Severe Thunderstorm Warning	MPX	Kanabec	46 min
Jul 27, 4:52 PM CDT	Special Weather Statement	MPX	Brown	38 min
Jul 27, 5:05 PM CDT	Severe Thunderstorm Warning	MPX	Brown, Redwood	25 min
Jul 27, 5:25 PM CDT	Special Weather Statement	MPX	Renville	35 min
Jul 27, 5:54 PM CDT	Special Weather Statement	MPX	Kanabec	66 min
Jul 27, 6:05 PM CDT	Special Weather Statement	MPX	Renville	25 min
Jul 27, 6:35 PM CDT	Special Weather Statement	MPX	McLeod	40 min
Jul 27, 6:36 PM CDT	Special Weather Statement	MPX	Renville	39 min
Jul 27, 6:39 PM CDT	Flash Flood Warning	MPX	Kanabec	4 hr
Jul 27, 6:42 PM CDT	Severe Thunderstorm Warning	MPX	Renville	48 min
Jul 27, 4:55 PM CDT	Severe Thunderstorm Warning Considerable damage threat	MPX	Barron, Polk	37 min
Jul 27, 5:30 PM CDT	Severe Thunderstorm Warning	MPX	Rusk	45 min
Jul 27, 6:15 PM CDT	Special Weather Statement	MPX	Polk	30 min
Jul 27, 6:16 PM CDT	Special Weather Statement	MPX	Rusk	44 min
Jul 27, 6:32 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Rusk	16 min
Jul 27, 6:38 PM CDT	Special Weather Statement	MPX	Barron	37 min
Jul 27, 6:55 PM CDT	Special Weather Statement	MPX	Polk	35 min

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.