Issued at 4:24 PM CDT, Tuesday, August 23rd, 2011
Weather Tidbits:
*5.3 magnitude earthquake occurred in Southern Colorado early Tuesday Morning. Biggest quake to hit the state in 40 years. (CNN)
*5.8 magnitude earthquake occurred in Virginia at 1:51 PM EDT/12:51 PM CDT This Afternoon. It was centered near Louisa, Virginia; 40 miles northwest of Richmond. This earthquake was felt as far away as New York City, Boston, Detroit, Chicago and Atlanta. (TWC)
WEATHER HEADLINES:
-Humid This Evening with a slight risk for showers/thunderstorms
-Windy and much less humid for Wednesday
-Most areas will be dry Tomorrow and Thursday
-Small chance for showers/thunderstorms returns for Friday
Forecast Discussion for Northeast Minnesota and Northwest Wisconsin
Today’s Weather:
A potent disturbance has been moving E-SE across Minnesota and into Wisconsin Today. Showers and thunderstorms developed late last night and continued into early This Afternoon generally along and south of Highway 2. None of the storms were severe, but some lightning and heavy downpours did occur. Clouds lingered longer than expected This Afternoon, and this kept high temperatures about 10-20 degrees cooler than what was forecasted in Northeast Minnesota and Northwest Wisconsin. Temperatures late Today ranged from the 80s west and southwest of the Iron Range with upper 60s to middle 70s common in Northwest Wisconsin and Eastern-Northeast Minnesota. Dewpoints Today were generally in the 60s and winds were out of the south or southwest under 20 mph.
Today’s Upper Level Analysis:
100-120 knot upper level jet was off to our northwest per RUC model analysis while a strong disturbance with a pocket of 60 meter 12 hour 500mb height falls exits to the east of Minnesota late This Afternoon per RUC model analysis. An upper level trough with another area of 60 meter 12 hour H5 height falls covered portions of Manitoba and Saskatchewan Provinces with widespread 90+ degree temperatures occurring ahead of this upper trough Today from Western Ontario Province, through Southern Manitoba Province, into the Dakotas and Western High Plains.
Tonight:
A cold front currently in Central North Dakota will move rapidly toward the E-SE Tonight. This boundary will pass through Northern Minnesota and Northwest Wisconsin by dawn. Moisture and instability will be present along and ahead of this boundary, but warm air aloft (CAP) will also be in place and this should lead to only isolated shower/thunderstorm development in our area Tonight. Partly to mostly cloudy skies are expected with lows in the 50s and 60s. Winds will be out of the south or southwest at 5-15 mph with gusts to 25 mph developing once the cold front moves through.
Wednesday and Wednesday Night:
Deep low pressure of 986-992mb will pass north of Lake Superior on Wednesday with the cold front attached to this low exiting our area early Wednesday Morning. A few showers could move into the Arrowhead of Minnesota on Wednesday as some moisture wraps around the strong low, the rest of the area will be dry during this period. Highs Tomorrow will be in the 70s to lower 80s with lows Tomorrow Night in the 40s and 50s. The pressure difference between the low to our N-NE and high pressure to our southwest will result in gusty west winds on Wednesday with 15-30 mph wind speeds likely to occur, but gusts could top 40 mph. Note: A potent 110+ knot upper level jet slicing southeast across the Upper Midwest will also help in generating some strong wind gusts in our area on Wednesday. Wind speeds will diminish to 10-15 mph Wednesday Night as high pressure settles into the Upper Midwest.
Extended Forecast:
Thursday looks like a nice day with sunshine, W-SW winds and low humidity. Highs will be in the 70s to around 80 degrees. The next cold front to affect our weather will move southeast out of the Northern Plains, passing through our local area on Friday. Doesn’t look like much moisture or instability will be available for this front, as a result only a few showers or thunderstorms are possible on Friday before dry weather returns Friday Night through Saturday Night. Next threat for showers or thunderstorms occurs during the Sunday-Monday time frame. Lows Thursday Night will mainly be in the 50s with highs Friday in the 70s to lower 80s. Lows Friday Night will be in the 50s.
5 DAY FORECAST FOR DULUTH/SUPERIOR
.Tonight… Humid This Evening. Partly cloudy. Low 60 to 65. Wind south to southwest at 10 to 15 mph becoming west to southwest at 10 to 20 mph Overnight.
.Wednesday… Windy and less humid. Partly cloudy. High 75 to 80. Wind west at 15 to 30 mph with higher gusts possible.
.Wednesday Night… Mostly clear. Low 50 to 55. Wind west at 10 to 15 mph.
.Thursday… Partly cloudy. High 73 to 78.
.Thursday Night… Partly cloudy. Low 57 to 62.
.Friday… Partly sunny. Showers or thunderstorms possible. High 73 to 78. Chance of rain 20%.
.Friday Night… Mostly clear. Low 50 to 55.
.Saturday… Partly cloudy. High 70 to 75.
Normal temperatures for Today
High: 73 degrees
Low: 54 degrees
Wednesday’s Pollen Forecast:
Weed: High
Tree: None
Grass: None
Sunrise Tomorrow: 6:18 AM CDT
Sunset Tomorrow: 8:04 PM CDT
Tim
Leave a Reply