November 21st-22nd: Wet - storms into Tuesday - dry Thanksgiving

November 21st and 22nd, 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:  Flash flood watch is in effect:  Dense fog likely before midnight - visibility less than one quarter mile at times.  Fog should mix out after midnight.  Showers and thunderstorms likely late tonight.  Locally heavy rain possible.  A few storms may be severe after 3 am tomorrow morning.
Above normal temperatures.
Lows: Temperatures rising into the 60s after midnight  |  Normal lows for this time of the year are around 39 degrees.
Wind:  Winds becoming easterly at 10-15 mph with gusts over 20 mph after 3 am.  
Precipitation probability - 90% late  | Rainfall totals:  0.40"-0.80" locally higher amounts possible
Confidence in this forecast is high
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Tuesday:  Showers and thunderstorms early - then a few showers and perhaps a thunderstorm during the late morning and afternoon hours..    
Above normal temperatures early.
Highs:  around 62-68 degrees then turning cooler from west to east during the afternoon hours.  | Normal highs for this time of the year are around 59 degrees.
Wind: Southwest winds at 10-20 mph - gusty as the low pulls away 
Precipitation probability - 90% early  Rainfall totals:   0.40"-1.00" early - locally higher amounts likely
Confidence in this forecast is high

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Tuesday night:  Patchy drizzle or a shower possible.  Cooler with areas of fog possible.
Above normal temperatures.
Lows: in the middle 40s |  Normal lows for this time of the year are around 39 degrees.
Wind:  Northwest winds at 10-15 mph
Precipitation probability - 20%  Rainfall totals: 0.10" or less.
Confidence in this forecast is high
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Wednesday:  Fog possible early in the day.  Partly cloudy and cooler.
Below normal temperatures.
Highs:  around 57 degrees  | Normal highs for this time of the year are around 59 degrees.
Wind: Northwest winds at 5-15 mph.   
Precipitation probability - 0%  Rainfall totals:  0.00"
Confidence in this forecast is high
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Thanksgiving will be dry and cool.  Thanksgiving weekend could be stormy.  Stay tuned.
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Don't forget to sign up for the severe weather "heads up" email list - I usually email everyone before a big event - severe weather or winter storms - ice storms.  Click here to join
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Fog - dense fog with visibility less than one quarter of a mile this evening and early tonight.  

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Rain - some ponding of water possible - especially in flood prone areas - low lying areas - areas of poor drainage.  Flash flood watch is in effect. 
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Dense fog - poor driving visibility this evening.  Avoided roadways with water over them.  

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No wild card in this update
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Removed severe threat


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

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The McCracken County Office of Emergency Management reminds you that owning a NOAA All Hazards Weather Radio is the best way to receive notifications of severe weather watches and warnings.
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Remember that the National Weather Service defines a severe thunderstorm as one that produces 58 mph winds or higher, hail 1" in size or larger, and/or a tornado.  More information with some slides concerning reporting severe weather - click here

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:  A couple of severe storms are possible late tonight - after 3 am - main concern would be strong winds.  No snow or ice.
Monday night: 
Will there be a chance for non-severe thunderstorms? Yes
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Tuesday:  Widespread severe weather is not anticipated.  No snow or ice.
Tuesday:  Will there be a chance for non-severe thunderstorms? Yes
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Tuesday night :
  Severe weather is not anticipated.  No snow or ice.
Tuesday night: 
Will there be a chance for non-severe thunderstorms?  No
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Wednesday: Severe weather is not anticipated.  No snow or ice.
Wednesday: 
Will there be a risk for non-severe thunderstorms?  No
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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
All other states- Click Here


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The links above 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.
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To view the interactive map - click here.
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HEADLINE:  Don't forget WINTER WEATHER PREPAREDNESS WEEK HAS ARRIVED - CLICK HERE FOR MORE INFORMATION!
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Fog is the big story this evening.   Use caution while driving.

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A flash flood watch has been issued.  View the watch here - click on your county.
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Once again a widespread rain event impacted the region late on Sunday night and into Monday.  Rainfall totals of 0.25-1.00" were reported across many counties - pockets of heavier amounts.
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Large hail was reported over parts of southern Illinois around midnight.  Hail the size of golf balls hit the Vienna area into Pope and Gallatin Counties. 
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More rain will fall tonight (Monday night) into Tuesday.  A line of showers and thunderstorms will finally bring the rain to an end late on Tuesday..
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There are still some questions as to whether severe weather occurs in our local counties.  The cons in the severe weather forecast is the early timing of the front and lack of instability.  To pros in the severe weather forecast would be strong winds fields and high precipitable water values.  
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If the front slows a bit then there will be a better chance for severe thunderstorms.  Stay tuned for updates later tonight and tomorrow morning as the event unfolds - I will update the Facebook page if need be.
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Tuesday night may bring some fog and drizzle - Wednesday is forecast to be dry - fog possible in the morning hours on Wednesday and Thursday.
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Check out this satellite image this evening showing the connection between the hurricane down in the Pacific and our storm system in the central United States - a bit unusual for this time of the year.  Click image for real view size.
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Thanksgiving will be DRY and cool - fog possible early in the day.  Black Friday will be DRY and cool.  RAIN enters the forecast later on Friday night into Saturday night.

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Precipitation map and temperature maps for Thanksgiving Day
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Have YOU liked the Facebook page for the National Weather Service Forecast Office out of Paducah, Kentucky?  These are the people that issue our winter storm watches and warnings - ice storm warnings - tornado warnings - flood information:  Here is their page - click here and hit LIKE at the top of their pages
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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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Let's check out the how much rain is forecast to fall over the next 72 hours.  This map gives you a general broad brushed idea of what can be expected.  Remember the scale is at the top of the map.
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If you would like to view the most up to date 24, 48, 72, and 120 hour precipitation forecast maps then click here.
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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 drought maps on the Weather Observatory web-site by clicking here.
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Snow is not in our local forecast.

Enhanced snowfall interactive forecast maps .  You can choose your total snowfall amounts above the map - time frame, as well- click here

Snowfall forecast maps - these are interactive maps.  You can choose your total snowfall amounts above the map - time frame, as well - click here
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If you are looking for wintry precipitation -  click here. 
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You can view the upcoming days high temperature and low temperature forecasts by clicking here - choose the day - click on your state to zoom in
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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.
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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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Date Range:  November 26th 

Event:  Showers and some thunderstorms - locally heavy rain possible.
Severe Risk: Too soon to make a forecast on severe weather - locally heavy rain is possible
Frozen Precipitation Risk:
Details:  Another in a series of storm systems will impact our region.  Cold front with showers and thunderstorms - colder air behind the system.  Rain may start as early as Friday night.
Confidence in my forecastVery high

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Date Range:  November 27th -November 31st
Event:  Below normal temperatures.  Can't rule out some mixed precipitation - low chance - but will monitor.
Severe Risk:
Frozen Precipitation Risk:  Another possible event towards the very end of the month - highly uncertain
Details:  Colder air arrives behind our holiday weekend storm. 
Confidence in my forecastHigh
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Date Range:  December 1st - December 12th
Event:  Mostly below normal temperatures.  Active pattern.
Severe Risk:
Frozen Precipitation Risk:  Possible the first few days of the month
Details:  Cold air - several shots of below normal temperatures.
Confidence in my forecast:  Medium
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Date Range:  December 7th-10th
Event:  Near normal to below normal temperatures.
Severe Risk:  
Frozen Precipitation Risk:  Possible
Details:  Potential precipitation event.
Confidence in my forecast:  Low

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Date Range:  December 27th-30th
Event:  Significant storm system in the Missouri/Ohio/Tennessee Valley
Severe Risk:  
Frozen Precipitation Risk
Details:  Potential precipitation event.
Confidence in my forecast:  Low
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Remember that as a general policy, in the long range outlook, I will NOT mention severe thunderstorms more than 72 hours in advance.  I will mention thunderstorm risks and I will give as many details as possible.  The word severe will be reserved for the short range forecast.

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1.  Long range is unfolding about as expected.  The last half of the month was supposed to bring well above normal rainfall with an active pattern.  Also cold air was forecast to arrive towards the end of the month and into December - with the potential for below normal temperatures.
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I will be watching several precipitation chances the first 2 weeks of December and a possible significant storm system towards the end of December.  Lot of cold air is building - this will likely be a dramatic switch from Novembers weather.
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Our next widespread rain event is still on schedule for the holiday weekend - most likely late Friday night into Saturday/Saturday night.  Rainfall totals of 1-2" will be possible with this system.  Some thunderstorms are also possible.  Colder air behind the storm for Sunday into the following week.  Can not rule out some mixed precipitation on Saturday night into Monday.  Uncertain - but thought I would mention it.

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Check out the 500 mb map for next weekend - this is an impressive trough over the central and eastern portions of the United States - signifying a possible pattern change for the region.  Towards colder weather.  Click image for real view size.  Image from www.wright-weather.com
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November is looking as if it will be a bit of a roller coaster in the temperature department - if we do end up with several deep storm systems then we would experience warm air moving up ahead of the storms and then cold air behind the systems.  Analogs are showing a cold to very cold December into  February - with a cooler than average spring and stormy/wet spring. The cold air this winter will depend on the blocking - more blocking = colder weather.
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Now is a GREAT time to buy a NOAA All Hazards Weather Radio.  Better to have one before storms strike than to be without one during an event.  I recommend the Midland Model 300 NOAA All Hazards Weather Radio - that is what I use here at my house!
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Meteorologist Beau Dodson
McCracken County Office of Emergency Management
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Beau Dodson Weather - Facebook
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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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Remember most of these maps can be viewed straight off of the Weather Observatory Web-Site
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