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Chilly Temps, Steady Rains & A Taste of the Tropics.

14 Sep 2012, 12:18 pm

Brrrr. Its A Cold Start!

Courtesy of, temps across North Dakota and Minnesota were cold enough to merit a FROST ADVISORY this morning.  The morning lows in some spots got into the 20s!

What a week it has been up across the northern plains.  Temperatures on September 11th were into the 90s due to a warm surge from a high pressure system sliding to the south.  In the Twin Cities, it was the 31st time the area hit above 90° for this summer and that has made this summer tied in 7th place for the number of days above 90°.  The record holder is 44 days back in 1988.  So after that one brief shot of heat, temps went towards more seasonal levels for the rest of the week, until this morning, when a Canadian High Pressure system moved in and caused the morning lows to be down fright frosty!  From International Falls to Grand Forks and into Bismarck, the Frost Advisory was in place due to the forecast calling for clear skies, calm winds and cool & dry air in place.  This results in the perfect storm for radiation cooling to occur.  Radiation cooling is the result of heat from the day being released into the air at night, and with no clouds overhead and no winds to stir up the air, the heat slowly escapes into space, allowing temperatures to get very chilly.

Temperatures this morning in Duluth, MN got down to 39° and the average low is 47°.  In Grand Forks, ND, the lowest temp was 31° and the normal low is 47°.  Meanwhile in International Falls, ND, on the Canadian border, it was as cold as 28°!  It was so cold that the moisture that had settled to the ground in the overnight hours, had started to freeze and form ice crystals.  The normal morning low for this time of year in that city is 43°.

Temperatures will warm up very nicely under warm, sunny weather this afternoon to more seasonal levels.  And this weekend looks very nice, up until Sunday evening when a storm comes through and the temps drop again.  This time, we could see well below normal morning lows and daytime highs for Monday and Tuesday.


Much Needed Rain

From the National Weather Service in Dallas today, showing the next 24 hour forecasted rain totals.  We look to see a good soaking of rain across portions of northern Texas into Missouri.

The dire drought conditions have been a huge problem for the midwest and finally some steady rain is coming that way.  This is the Drought Monitor from NOAA showing how extensive the worst of the drought conditions are.

Well due to a slow moving frontal boundary across the nation, we are seeing showers come down at a persistent and steady pace from Texas towards Ohio, and this happens to be where some of the hard hit areas are in the drought zone.  Instead of swift moving storm systems that bring severe weather hard-hitting downpours, we are enjoying prolonged periods of shower activity, which is just what the farms out there have been asking for all Summer long.  Over the past several days, there has been a few inches falling from Texas to Iowa towards Ohio.  We just need a few more slow-moving rain storms to come by and we’ll see those drought conditions fade away.

Hurricane Season Peaks

The climotologcial peak of the Atlantic Hurricane Season is around September 10th (some would argue its Sept. 15th).  Regardless, we are in the midst of when the Atlantic is supposed to be active.

Well we have passed the halfway point of the Atlantic Hurricane Season, and are now entering the most active point of the season.  So far, it has been an active season, with 14 named storms, 7 hurricanes and 1 major hurricane which was Michael.  Michael’s place as the 7th named hurricane makes 2012 the third year to achieve this feat so early in the season.  The other two years to do so were 1886 and 1893.  We are currently dealing with Tropical Storm Nadine out in the middle Atlantic Ocean which will not be bothering any land masses any time soon, except maybe the Azores later on next week.  Check out the storm path below from

A storm much larger and more powerful is brewing out in the western Pacific Ocean than anything we have seen in the Atlantic Ocean this hurricane season, or any other season for the past few years.

Take a look below and say hello to Sanba, a super typhoon, in the western Pacific Ocean.  This satellite imagery comes from NASA. Notice the extremely well defined eye feature and the dense clouds swirling around in the form of spiraling bands from the storm’s center.

Typhoon SanbaSuper Typhoon Sanba is moving just east of the Philippines and will heading due north past the southern islands of Japan towards South Korea by Monday.  Earlier this morning, Sanba was an impressively strong storm, with winds sustained around 170 MPH!  The last time the Atlantic Ocean saw a storm that was anywhere near this level of strength was back in 2007 when Category 5 Felix had winds of 175 MPH for 24 hours.  Sanba has now lost some its strength and dropped its sustained winds to around 155 MPH, but is still a very dangerous storm system.

Check out the path below from 

Now Sanba is a very powerful storm system, but has there been storms bigger and stronger?  Well yes, it has just been a while since then.  Just out of shear curiosity, I have to point out likely the most intense and biggest storm to ever roam the open waters of the oceans. This storm also was in the same area as is Sanba and was a typhoon.

Here is Typhoon Tip, which at it’s peak, had winds estimated to be at or higher than 190 MPH.  This satellite imagery was taken back in October of 1979

Super Typhoon Tip

Tip was a HUGE and powerful monster of a storm.  It had tropical storm force winds that extended out in a diameter of around 1380 miles and, just to put it into perspective, would cover nearly half the continental US.

The largest storm in the Atlantic Ocean was Hurricane Igor back in September 2010, where it had tropical storm force winds spread out around 920 miles from edge to edge.
Thanks everyone for stopping on by towards WeatherNation for this installment of “The Daily Blog.”  Have a great weekend and enjoy the nice weather, where ever you may be.

Meteorologist Addison Green

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