Monday, June 12, 2017

Strong to Severe Thunderstorms in the Northland Tue evening-Wed (Heavy Rain potential as well) Gusty E wind/Much cooler temps near Lake Superior Tue-Wed

/Issued 4:55 PM CDT, Monday, June 12, 2017/



Could be a bit bumpy at times Tuesday in the northern Plains and upper Midwest with severe weather possible with the risks ranging from Enhanced to Marginal.

A significant amount of rain fell on Sunday over parts of far eastern Minnesota into portions of north central Wisconsin.

Rainfall reports from June 11, 2017

Winter, WI 2 N:  5.02 in
Park Falls, WI:  4.96 in
Fifield, WI 12 ENE:  4.56 in
Winter, WI:  4.08"
Butternut, WI 3 N:  3.75 in
Grantsburg, WI:  3.11 in
Butternut, WI 5 WSW:  3.02 in
Sarona, WI:  2.95 in
Stone Lake, WI 2 WNW:  2.89 in
Hayward, WI:  2.86 in
Earl, WI 4 S:  2.34 in
Hertel, WI 6 NE:  2.30 in
Seeley, WI 2 WNW:  2.28 in
Spooner, WI:  1.80 in
Glidden, WI:  1.72 in
Greely, MN 2 N:  1.64 in
Clam Lake, WI 4 W:  1.01 in
Minong, WI 7 WNW:  0.48 in
Embarrass, MN:  0.40 in
Swan River, MN 3 WSW:  0.40 in
McGregor, MN 7 N:  0.36 in
Danbury, WI:  0.33 in
Brainerd, MN:  0.30 in
Wright, MN 3 E:  0.30 in
Chisholm-Hibbing, MN (Airport)  0.25 in
Duluth, MN (Airport)  0.22 in
Walker, MN:  0.22 in
Wrenshall, MN:  0.22 in
Cook, MN:  0.17 in
Superior, WI:  0.16 in
Silver Bay, MN:  0.16 in
Cass Lake, MN:  0.15 in
Hurley, WI:  0.13 in
Bayfield, WI:  0.11 in
Ashland, WI:  0.11 in
Lutsen, MN:  0.06 in

Local Storm Reports from June 11, 2017

Note:  These are additional storm reports from Sunday, June 11, 2017 -- Previous storm reports can be found in my post from June 11, 2017.

*9:50 PM CDT:  FLASH FLOOD.  Winter, WI 5 NW (Sawyer County)  Water flowing over Dam Road 3 feet deep.

*8:45 PM CDT:  HAIL.  0.50 inch.  Kennan, WI (Price County)

*8:30 PM CDT:  FLASH FLOOD.  ENE New Post, WI (Sawyer County)  Culvert washed out on North Highway CC.  Roadway is closed.

*8:30 PM CDT:  FLASH FLOOD.  Radisson, WI 4 N (Sawyer County)  Highway H. Closed due to water over roadway.

*7:45 PM CDT:  FLASH FLOOD.  Radisson, WI 1 NNW (Sawyer County)  Highway H at Beaver Brook Road closed due to flooding.

*7:45 PM CDT:  FLASH FLOOD.  New Post, WI 1 E (Sawyer County)  Portions of West Flowage Road closed due to flooding.

*7:45 PM CDT:  FLASH FLOOD.  Ojibwa, WI (Sawyer County)  Flood water over several sections of Highway 27 between Ojibwa and Couderay.

*5:50 PM CDT:  FLOOD.  Webster, WI (Burnett County)  Several roads in Webster are flooding.

*5:50 PM CDT:  FLOOD.  Winter, WI 4 NW (Sawyer County)  Local creek overflowing.  Basement and yard flooding.

*4:32 PM CDT:  HAIL.  0.25 inch.  Hayward, WI (Sawyer County)

*4:42 PM CDT:  HAIL.  0.25 inch.  Park Falls, WI (Price County)  Duration of hail was 1 to 1.5 minutes.

*3:43 PM CDT:  THUNDERSTORM WIND DAMAGE.  Northwoods Beach, WI 4 W (Sawyer County)  Trees uprooted or snapped.

11:50 AM CDT:  THUNDERSTORM WIND DAMAGE.  Manitowish, WI 15 S (Price County)  Power lines down along Pike Lake Club Road.

*10:31 AM CDT:  THUNDERSTORM WIND DAMAGE.  Stone Lake, WI (Sawyer County)  Multiple trees downed and a few snapped from the base.

*10:25 AM CDT:  THUNDERSTORM WIND DAMAGE.  Springbrook, WI 2 SSW (Washburn County)  A few trees downed up to 18 inches in diameter.

*9:52 AM CDT:  THUNDERSTORM WIND DAMAGE.  Siren, WI 3 N (Burnett County)  A large oak tree, about 18" to 20" in diameter, fell on old Highway 35 west of the Siren Airport.

*9:28 AM CDT:  THUNDERSTORM WIND DAMAGE.  Grantsburg, WI (Burnett County)  Four large pine trees were blown down.

*9:28 AM CDT:  THUNDERSTORM WIND DAMAGE.  Grantsburg, WI 2 WSW (Burnett County)  A large pine tree, about 30' in height, fell on their property.

Weather Synopsis

A much nicer day across the Northland compared to Sunday -- Sunshine was quite abundant earlier in the day but mid/high level cloudiness has been increasing from SW-NE this afternoon as a complex of thunderstorms moved E/NE through the south half of Minnesota into west central Wisconsin.  Highs today ranged from the mid 70s to low 80s in east central Minnesota and in all of northwest Wisconsin with low to mid 70s in far northern Minnesota.

Most of tonight should remain dry in the Northland but after midnight or toward daybreak a few showers and isolated thunderstorms might begin to develop mainly over southern areas.  Lows tonight mainly in the 50s.

Scattered showers and thunderstorms could develop at times over parts of the Northland Tuesday but a better chance for more widespread shower/thunderstorm activity is expected Tuesday night -- The stationary frontal boundary which was over northern Iowa this afternoon will begin to lift slowly back toward the north as a warm front through Wednesday morning, this front should make it into central Minnesota by Wednesday morning the way it looks now -- A reservoir of very unstable air will be found along and south of that warm front with CAPE 2500-4500 j/kg, some of that instability will advect northward into our area which will help to increase the potential for thunderstorms on Tuesday.  Mid level lapse rates will steepen during the day, and this combined with decent mid level winds and a stronger low level jet could result in a few strong to severe thunderstorms especially from north central to east central Minnesota into far northwest Wisconsin Tuesday and Tuesday night.  Damaging winds and large hail are the main severe weather threats in our area but a low risk for a tornado does extend into the southwest corner of the Northland (Brainerd Lakes area)  Highs Tuesday will be in the 60s and 70s with far southern areas approaching 80 degrees.  Note:  It will be much cooler near Lake Superior as east winds increase due to the approaching low and warm front from the west/southwest.

Additional scattered showers and thunderstorms will be possible Wednesday as a warm front and cold front pass through the Northland.  A few of these storms have the potential to become strong to severe once again on Wednesday with even a risk for a few tornadoes late in the afternoon/early evening in parts of northeast Minnesota and northwest Wisconsin.

Forecast for Duluth and Superior

.Tonight...  Partly to mostly cloudy.  Low 52 to 57.  Wind becoming east at 10 to 20 mph.

.Tuesday...  Much cooler.  Breezy.  Partly to mostly cloudy.  Scattered showers or thunderstorms possible.  High 57 to 62.  Wind east at 15 to 25 mph.

.Tuesday night...  Occasional showers and thunderstorms.  Heavy downpours possible.

Normal temperatures for Tuesday

High:  70
Low:  49

Sunrise Tuesday:  5:14 AM CDT
Sunset Tuesday:   9:04 PM CDT