Alert archive / Minnesota / High Wind Warnings in 2017

High Wind Warning 1, NWS Twin Cities, MN

August 17, 2017Brown County, Nicollet County, Sibley County, Minnesota

NWS Twin Cities, MN issued this high wind warning at Aug 17, 2017, 2:04 AM CDT for Brown County, Nicollet County, Sibley 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 counties it named.

The facts

Issued
Aug 17, 2017, 2:04 AM CDT (07:04 UTC)
Expired
Aug 17, 2017, 3:32 AM CDT
In force
88 min
Issued by
NWS Twin Cities, MN

Counties Brown County, MN, Nicollet County, MN, Sibley County, MN

The radar

The Minneapolis radar (KMPX), 84 km from the middle of the area, began a volume at 07:05 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, 7.1 hours before the alert went out and 81 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-pSkew-T log-p diagram, Minneapolis, MN at 00:00Z on 2017-08-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 445 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 00:00Z on 2017-08-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 217 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
445 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
756 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
217 m²/s²
0-3 km storm-relative helicity
238 m²/s²
Significant tornado parameter
0.6
Supercell composite
3.6

Open this sounding in Storm Lab

The text

As transmitted.

674 
WWUS73 KMPX 170704
NPWMPX

URGENT - WEATHER MESSAGE
National Weather Service Twin Cities/Chanhassen MN
204 AM CDT Thu Aug 17 2017

MNZ067-074-075-171000-
/O.NEW.KMPX.HW.W.0001.170817T0704Z-170817T1000Z/
Sibley-Brown-Nicollet-
Including the cities of Gaylord, New Ulm, and St Peter
204 AM CDT Thu Aug 17 2017

...HIGH WIND WARNING IN EFFECT UNTIL 5 AM CDT EARLY THIS
MORNING...

The National Weather Service in Twin Cities/Chanhassen has issued
a High Wind Warning, which is in effect until 5 AM CDT early this
morning. 

* WINDS...Sustained winds around 40 mph with gusts to around 60
  mph.

* IMPACTS...Driving may be hazardous, particularly in high profile
  vehicles. Loose outdoor objects may be blown around. Small or
  shallow rooted trees may be blown over.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$
1 follow-up statement
312 
WWUS73 KMPX 170832
NPWMPX

URGENT - WEATHER MESSAGE
National Weather Service Twin Cities/Chanhassen MN
332 AM CDT Thu Aug 17 2017

...BRIEF PERIOD OF STRONG WINDS POSSIBLE THROUGH MIDDAY TODAY... 

.As a center of low pressure slowly spins eastward over southern
Minnesota this morning, wind speeds underneath the low may become
quite strong. Sustained speeds of 30 to 35 mph with gusts to
around 50 mph are possible, and these speeds have already been
reported in parts of western Minnesota early this morning. As the
low moves east, wind speeds will gradually diminish.

MNZ067-074-075-171800-
/O.CAN.KMPX.HW.W.0001.000000T0000Z-170817T1000Z/
/O.NEW.KMPX.WI.Y.0005.170817T0832Z-170817T1800Z/
Sibley-Brown-Nicollet-
Including the cities of Gaylord, New Ulm, and St Peter
332 AM CDT Thu Aug 17 2017

...WIND ADVISORY IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON...
...HIGH WIND WARNING IS CANCELLED...

The National Weather Service in Twin Cities/Chanhassen has issued
a Wind Advisory, which is in effect until 1 PM CDT this
afternoon. The High Wind Warning has been cancelled. 

* WINDS...Sustained winds 30 to 35 mph with gusts to around 50
  mph. 

* IMPACTS...Driving may be hazardous, particularly in high 
  profile vehicles. Loose outdoor objects may be blown around. 
  Small or shallow rooted trees may be blown over. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that wind gusts in excess of 45 mph are
expected. Winds this strong can make driving difficult...
especially for high profile vehicles. Use extra caution.

&&

$$

MNZ065-066-068>070-073-076>078-082>085-171800-
/O.NEW.KMPX.WI.Y.0005.170817T0832Z-170817T1800Z/
Renville-McLeod-Carver-Scott-Dakota-Redwood-Le Sueur-Rice-Goodhue-
Watonwan-Blue Earth-Waseca-Steele-
Including the cities of Olivia, Hutchinson, Chaska, Shakopee, 
Hastings, Redwood Falls, Le Sueur, Faribault, Red Wing, St James,
Mankato, Waseca, and Owatonna
332 AM CDT Thu Aug 17 2017

...WIND ADVISORY IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON...

The National Weather Service in Twin Cities/Chanhassen has issued
a Wind Advisory, which is in effect until 1 PM CDT this
afternoon. 

* WINDS...Sustained winds 30 to 35 mph with gusts to around 50
  mph. 

* IMPACTS...Driving may be hazardous, particularly in high 
  profile vehicles. Loose outdoor objects may be blown around. 
  Small or shallow rooted trees may be blown over. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that wind gusts in excess of 45 mph are
expected. Winds this strong can make driving difficult...
especially for high profile vehicles. Use extra caution.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 16, 7:29 PM CDTSpecial Weather StatementMPXCarver, McLeod, Scott61 min
Aug 16, 7:42 PM CDTTornado WarningMPXCarver, Hennepin, Scott20 min
Aug 16, 7:49 PM CDTFlood WatchMPXBenton, Chippewa, Douglas, Kandiyohi, Lac qui Parle, McLeod and 13 more12 hr
Aug 16, 7:59 PM CDTTornado WarningMPXCarver, McLeod31 min
Aug 16, 8:13 PM CDTFlash Flood WarningMPXCarver, Hennepin, Scott3 hr
Aug 16, 10:42 PM CDTAreal Flood WarningMPXChippewa, Kandiyohi, Lac qui Parle, Redwood, Renville, Swift and 1 more9 hr
Aug 16, 11:57 PM CDTSpecial Weather StatementMPXRenville48 min
Aug 17, 1:03 AM CDTFlash Flood WarningMPXRedwood, Renville4 hr
Aug 17, 1:31 AM CDTSpecial Weather StatementMPXRenville44 min
Aug 17, 3:32 AM CDTWind AdvisoryMPXBlue Earth, Brown, Carver, Dakota, Goodhue, Le Sueur and 10 more4 hr

Nearby

High Wind Warnings in Minnesota, 2017Every high wind warning in 2017

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.