September 27, 2011: Is a cold wave coming?

September 27, 2011:
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This forecast covers far southern Illinois, southeast Missouri, southwest Indiana, western Kentucky, and northwest Tennessee - for your local town/area - click here
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Here are my current personal forecast thoughts for far southern Illinois and western Kentucky...
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Monday night:  A few clouds early then clear.  Below normal temperatures.
Lows:  in the 51-55 degree range.  |  Wind: Southwest winds early becoming westerly at  5-10 mph.  Normal lows for this time of the year are around 57 degrees.  Precipitation probability - 0%
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Tuesday:  A mix of sun and clouds as the upper level low spins to our north.  Below normal temperatures.
Highs:  in the 71-75 degree range.  |  Wind:  West winds at 5-10 mph.  Normal highs for this time of the year are around 82 degreesPrecipitation probability - 0%
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Tuesday night:  Partly cloudy.  Below normal temperatures.
Lows: around 51-55 degrees  |  Wind:  West winds at 5-10 mph. Normal lows for this time of the year are around 57 degrees.  Precipitation probability - 0%.
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Wednesday: A few clouds.  A few showers possible - especially over the northern and eastern part of the region.  Below normal temperatures.
Highs:  around 75 degrees. |  Wind: West winds at 5-10 mph.  Normal highs for this time of the year are around 82 degrees.   Precipitation probability - 10%
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Tweaked temperatures.  Mentioned the shower chance on Wednesday - see the video for that discussion.  Video's are being posted again (each morning - blog is evening and video is morning)
Link:  http://www.weatherobservatory.com/weather-video.htm



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Forecast for your local town/city - Click Here
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The forecast for severe or extreme weather risk for the next 24 hours... 


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For the most up to date severe weather outlooks - click here.
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Visit the Storm Prediction Center's web-site - click here
 
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Monday night:
  Severe weather is not anticipated.
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Tuesday:  Severe weather is not anticipated.
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Tuesday night:
  Severe weather is not anticipated.
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Wednesday:   Severe weather is not anticipated
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You can learn more about lightning safety by clicking here.
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You can view the most up to date graphics - clicking here.
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To view all watches and warnings in IL -  Click Here
To view all watches and warnings in KY - Click Here
To view all watches and warnings in MO - Click Here
To view all watches and warnings in TN - Click Here

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All other states- Click Here
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The map you see below can be viewed by clicking on the watch and warnings map links above.  The maps are interactive and you can move around the United States by simply clicking on the national map - or from the pull down menu where it says regions and US States - again this map is a sample map.  To view the actual interactive map - click here.
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HEADLINE:  The big ticket item surrounds the placement of an area of high pressure for the upcoming weekend.  A lot of data indicates a Canadian High Pressure pushing into the Ohio Valley by this weekend.  If that is the case then we might see lows in the 30s/40s for portions of the area - possibly some frost.  Not ready to bite just yet - but it is interesting (okay it is interesting for weather geeks).
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The upper level low that brought us the heavy rains and thunderstorms over the weekend is still rotating around the Great Lakes region.  We will have to monitor clouds and light showers to our north - especially on Wednesday.  A few could sneak into our local counties.  Will monitor!

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Let's take a look at the upper level low on these satellite views - IMPRESSIVE is the word!  Click for real size view.
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We have a TON of new weather maps on the Weather Observatory web-site - these include temperatures, wind speed, dew points, heat index, barometric pressure, predicted rainfall, climate forecast, medium and long range maps, forecasts and more!  Click here 
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The McCracken County Office of Emergency Management reminds you that owning a NOAA Weather Radio is the best way to receive notifications of severe weather watches and warnings.

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Nice camping weather the next few days.  Cool nights and mild afternoons.  I will be monitoring the upper level low as it rotates to our north.  It may try to move a little bit further south towards the middle of the week.  This could introduce a few showers to our region - especially as you push further north and east in the region.


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Let's check out the how much rain is forecast to fall over the next 24 hours.  This map gives you a general broad brushed idea of what can be expected.
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If you would like to view the most up to date 24, 48, 72, and 120 hour maps then click here.
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And let's look ahead all the way into Wednesday night - you can see some light precip into our region.  Again this will depend on the placement of the upper level low as it continues to spin over the central U.S.
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I have added thunderstorm probabilities to the web-site - you can click hour by hour and see where the best chances for thunderstorms will exist.  Here is the link - you can also choose your own region by clicking on a state.


ALSO NOW AVAILABLE - Six hour probability precipitation maps.
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You can also now view the probability of X amount of rain (you pick the value on the web-site) in a six hour period of time.  Those maps can be viewed here
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You can view the upcoming days high temperatures and low temperature forecasts by clicking here - choose the day - click on your state to zoom in - LINK
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Also the UV forecast for those interested - click here



We have a number of new radars available on our Weather Observatory web-site!
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We now offer St Louis, Mt Vernon, Evansville, Poplar Bluff, Cape Girardeau, Marion, Paducah, Hopkinsville, and Dyersburg Interactive City Radars.  We also have the two regional radars and now offer you three GR Earth radars.

http://www.weatherobservatory.com/weather-radar.htm---
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We  also have a new interactive radar - you can view that radar by clicking here.
Want to learn more about how to use our radars?  I made a how to video with more information
Click here - http://www.youtube.com/watch?v=bfLa0hI3adU
 
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Drought continues across a large chunk of real estate.  This has been a concern for quite some time now.  Droughts tend to creep.  Many of you have witnessed the extreme fire conditions over portions of Texas and Oklahoma on the different news outlets.  I have been watching this drought slowly creep north and east over the last few months.  This will need to be monitored as we move into the fall and winter months.
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Here is the latest Palmer Drought Index.  Severe drought continues over Texas, Oklahoma, Louisiana, and parts of Arkansas.  The areas in green are moist regions - the areas in orange and yellow are in need of rain.  You can see that the dry area has spread over the last few weeks.
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You can view these and more drought maps on the Weather Observatory web-site by clicking here

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You can learn more about the current drought by visiting this Climate Prediction Center website - click here.
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1.  The big story will be the potential for cool weather this coming weekend.  Not much of a big story?  I suppose!  Won't rule out the coldest air of the season, thus far.  Frost could occur in some of our counties.  
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Let's take a look at the GFS - what it is showing for the weekend.  You can see the big high pressure area over the Ohio Valley and the second chart would be the temperature forecast.  Wherever this high pressure is centered is where the coolest air will find itself placed.  Not sold just yet on the placement - but something to watch.  
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I am also starting to watch hints on the models of deeper storm systems as we push into October.  This comes as no surprise.  Typically we start to see deeper low pressure systems during October and November.  Stay tuned for updates.
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We normally see an uptick during the fall months - will keep an eye.  Don't forget that September is preparedness month.  For more information on the different types of severe weather that can impact our region - click here.
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Now is a GREAT time to buy a NOAA Weather Radio.  Better to have one before storms strike than to be without one during an event.
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Meteorologist Beau Dodson
McCracken County Office of Emergency Management
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To view all watches and warnings in Illinois - Click Here
To view all watches and warnings in Kentucky - Click Here
To view all watches and warnings in Missouri - Click Here
To view all watches and warnings in Tennessee - Click Here

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All other states- Click Here
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For the latest watches and warnings please visit your local National Weather Service Office web-site
http://www.weather.gov/organization.php

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