Weather Sunday
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Started by metmike - Sept. 9, 2018, 10:26 a.m.

Amazing that it's September 9th already. Another day is gone! Do something special to remember this next day! Seriously, don't just think about it for a moment......do it today.

The new threat is along the East Coast from Hurricane Florence, starting in the middle of this week!!!

https://www.marketforum.com/forum/topic/12263/


 Scroll down and  enjoy the latest comprehensive weather to the max!!


The heavy rains are finally over in the Cornbelt. The last of the wet weather is exiting the Eastern Cornbelt right now. Now before providing a soggy Sunday to Mike the Plumber!

Drying this week will help to minimize the damage.


 The latest rain forecasts are below...........broken down into each period coming up. Then the 1 week totals.


Day 1 below:

http://www.wpc.ncep.noaa.gov/qpf/fill_94qwbg.gif?1526306199054

http://www.wpc.ncep.noaa.gov/qpf/fill_94qwbg.gif?1531339983148

Day 2 below:

http://www.wpc.ncep.noaa.gov/qpf/fill_98qwbg.gif?1528293750112


http://www.wpc.ncep.noaa.gov/qpf/fill_98qwbg.gif?1531340045174


Day 3 below:

http://www.wpc.ncep.noaa.gov/qpf/fill_99qwbg.gif?1528293842764

http://www.wpc.ncep.noaa.gov/qpf/fill_99qwbg.gif?1531340092706



Days 4-5 below:

http://www.wpc.ncep.noaa.gov/qpf/95ep48iwbg_fill.gif?1526306162

http://www.wpc.ncep.noaa.gov/qpf/95ep48iwbg_fill.gif?1531339379

 Days 6-7 below:

http://www.wpc.ncep.noaa.gov/qpf/97ep48iwbg_fill.gif?1526306162

http://www.wpc.ncep.noaa.gov/qpf/97ep48iwbg_fill.gif?1531339379

7 Day Total precipitation below:

http://www.wpc.ncep.noaa.govcdx /qpf/p168i.gif?1530796126






http://www.wpc.ncep.noaa.gov/qpf/p168i.gif?1530796126

Comments
By metmike - Sept. 9, 2018, 10:29 a.m.
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Excessive rain threat moving east.


The new threat, starting in the middle of THIS week will be from Hurricane Florence along the East Coast!


Current Day 1 ForecastCurrent Day 1 Excessive Rainfall Forecast


Day 1 Threat Area in Text Format  



Current Day 2 ForecastCurrent Day 2 Excessive Rainfall Forecast


Day 3 forecast below

Current Day 3 Excessive Rainfall Forecast

By metmike - Sept. 9, 2018, 10:29 a.m.
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Severe Storm Risk.  Hit the map for full screen.

https://www.spc.noaa.gov/products/outlook/

Current Day 1 Outlook
        1300 UTC Day 1 Outlook             
         
          Current Day 2 Outlook
          0600 UTC Day 2 Outlook               
      
          Current Day 3 Outlook
          0600 UTC Day 3 Outlook               
     
          Current Day 4-8 Outlook
          Day 4-8 Convective Outlook
By metmike - Sept. 9, 2018, 10:31 a.m.
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High Temperatures today and Monday.   Hot Southwest, very warm Rockies to N.Plains! Very cool in the Midwest to Northeast.


                    

By metmike - Sept. 9, 2018, 10:37 a.m.
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Highs days 3-7. Heating back up next week!

Will it be warm/hot enough to support natural gas?



http://www.wpc.ncep.noaa.gov/medr/DAY3_MAX_filled.gif

http://www.wpc.ncep.noaa.gov/medr/DAY4_MAX_filled.gifhttp://www.wpc.ncep.noaa.gov/medr/DAY5_MAX_filled.gifhttp://www.wpc.ncep.noaa.gov/medr/DAY6_MAX_filled.gifhttp://www.wpc.ncep.noaa.gov/medr/DAY7_MAX_filled.gif

By metmike - Sept. 9, 2018, 10:38 a.m.
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How do these days 3-7 temperatures compare to average at this time of year?  We are now 7 weeks past the climatological time of year when temperatures are the hottest.

 Warming up again next week to well above average.............but average in mid September is not that hot anymore. With low storage, it's still possible to give a bullish kick to natural gas if it was going to last.



High temperature departures:

http://www.wpc.ncep.noaa.gov/medr/hpcmaxwbg.gif


Low Temperature Departures:

http://www.wpc.ncep.noaa.gov/medr/hpcminwbg.gif

By metmike - Sept. 9, 2018, 10:40 a.m.
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Dew points. 70+ on this scale makes it feel uncomfortable(sticky air)!  

Humid air being shoved south.

 Very dry air Plains to Midwest to East....................pushing south and drying things out this week.


Current Dew Points

By metmike - Sept. 9, 2018, 10:41 a.m.
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Heat and high humidity COMBINED. Feels like temperature. Heat Index is a big  factor over the far Southeastern  US today.Current US Heat Index Map

By metmike - Sept. 9, 2018, 10:43 a.m.
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The remnants of Gordon and the mid latitude weather system are  bombing the Northeast today.......drier/cooler weather is moving in behind that system.


 

https://weather.com/maps/currentusweather

Current US Surface Weather Map

By metmike - Sept. 9, 2018, 10:44 a.m.
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Here is the latest radar image.  It's raining elephants and hippo's on top of Mikempt  (-:



http://www.nws.noaa.gov/radar_tab.php

Doppler Radar National Mosaic Loop

By metmike - Sept. 9, 2018, 10:46 a.m.
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Satellite picture.    Clouds from the Northeast across the E.Great Lakes/Ohio Valley.  

Florence in the Atlantic will be taking front stage all of this week. 


US Infrared Satellite Map

By metmike - Sept. 9, 2018, 10:47 a.m.
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Rains the past 24 hours.  IL/IN/OH/PA got bombed!


By metmike - Sept. 9, 2018, 10:47 a.m.
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You can go to this link to see rain totals from recent time periods:

https://water.weather.gov/precip/

Go to precipitation, then scroll down to pick a time frame. Hit states to get the borders to see locations better. Under products, you can hit "observed" or "Percent of normal"

By metmike - Sept. 9, 2018, 10:48 a.m.
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Much of the Cornbelt was in great shape for early September so the crops were fed lots of yield making H2O in August.

Too wet in a huge area now!

Drier this week, which will minimize the problems to the crops.


http://www.cpc.ncep.noaa.gov/products/Soilmst_Monitoring/Figures/daily/curr.w.anom.daily.gif



http://www.cpc.ncep.noaa.gov/products/analysis_monitoring/regional_monitoring/cmi.gif

By metmike - Sept. 9, 2018, 10:49 a.m.
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Below are rains compared to average of the last 7, 14, 30 and 60 days. Usually not updated for previous day until late the next day.

Bountiful rains for most of the Cornbelt..............and points eastward and westward. This increased yields in August!!!

Now we have had too much rain!  But the too much rain has shifted southeast as expected! It will come to an end today and we will dry out next week.

https://www.atmos.illinois.edu/~snodgrss/Ag_Wx.html

http://weather.agribleservices.com/ahps/7_day_percent.png


http://weather.agribleservices.com/ahps/14_day_percent.png

http://weather.agribleservices.com/ahps/30_day_percent.pnghttp://weather.agribleservices.com/ahps/60_day_percent.png

By metmike - Sept. 9, 2018, 10:49 a.m.
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Drought Monitor. This product is updated every Thursday. Drought has been shrinking but still persists in N.Missouri  and Texas.........this measure takes into account the long term precip/sub soil moisture and goes back over MANY months.


            http://droughtmonitor.unl.edu/Maps/CompareTwoWeeks.aspx    

Drought Monitor for conus

By metmike - Sept. 9, 2018, 10:51 a.m.
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Temperature Anomalies from GFS ensembles(fairly reliable product) going out 2 weeks. These maps show the Northern Hemisphere. The map of the US is front center. Look for the state borders in  white.


Today:     Cool air surge Midwest to S.Plains. Hot Southwest.
NCEP Ensemble t = 024 hour forecast product



In 5+ days:

Very warm/hot air surge.
NCEP Ensemble t = 144 hour forecast product



In 10+ days:

Cold in Canada! Another very cool air surge south of border?
NCEP Ensemble t = 264 hour forecast product


Day 15  Positive anomalies Plains/Midwest over much of the US.  Heat in LATE September is not like heat in LATE July! How warm will it be in the East???

NCEP Ensemble t = 360 hour forecast product

By metmike - Sept. 9, 2018, 6:58 p.m.
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The top map is the ensemble average, the maps below are the individual members that make up the average

12z ensembles on Sunday are all over the place by late week 2.

++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

Each member is like the parent, Canadian model operational model.......with a slight tweek/variation in parameters. Since we know the equations to represent the physics of the atmosphere in the models are not perfect, its useful to vary some of the equations that are uncertain(can make a difference) to see if it effects the outcome and how.

The average of all these variations(ensembles) often yields a better tool for forecasting. It's always more consistent. The individual operational model, like each individual ensemble member can vary greatly from run to run.........and represent an extreme end of the spectrum at times. The ensemble average of all the members, because it averages the extremes.............from opposite ends of the spectrum............changes much less from run to run.

360h GZ 500 forecast valid on Sep 24, 2018 12 UTC

GZ 500 forecastGZ 500 forecastGZ 500 forecastGZ 500 forecast

By metmike - Sept. 9, 2018, 7:03 p.m.
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12Z GFS ensembles at the end of 2 weeks.  Weak upper level ridging south,  zonal, west to east  jet stream along the Canadian border. Nothing unusual.

Forecast Hour:  360
Image URL: http://mag.ncep.noaa.gov/data/gefs-mean-sprd/12/gefs-mean-sprd_namer_360_500_vort_ht.gif

   

gefs-mean-sprd_namer_360_500_vort_ht.gif

By metmike - Sept. 9, 2018, 7:30 p.m.
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The model below actually combines the GFS and Canadian ensembles into one overall average and often  yields an even more consistent product  than the separate ensembles. 



The top map is from the most recent 12z runs. The previous map is from the most recent 0z runs for the same time frame. The time frame is at the end of week 2, when individual models usually show huge changes from run to run.  Can you see much difference in this product?
No, because its an average of dozens of individual ensembles, which averages out all the extremes solutions.  It may often miss the magnitude of big pattern changes early on but it will get the direction correct and will not have big run to run flip flops that individual models have in the later periods.

The small change below from the more recent map at the top and the one 12 hours older below is that the upper level ridge in the south is farther north. 

      

The closed 588 decameter contour, for instance, that was closer to S.Oklahoma at the bottom, is now in N.Oklahoma at the top. Even the 570 dm contour is slightly farther north on the newer map. This just means temperatures are being projected a tad warmer in the Plains/Midwest.

Just the opposite is true in the West. The 576 dm contour that was in N.Washington St is now in the southern part of the state, along the Oregon border...........so upper level troughing is a bit stronger out there.

  

  Individual Members    

    Standard Deviation/Mean Charts for NAEFS

    Standard Deviation/Mean Charts for NAEFS

By metmike - Sept. 9, 2018, 7:32 p.m.
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The low skill, longer range CFS model for weeks 3 and 4.

Changeable. Not reliable.  It goes from cool in the Midwest in week 3, to record warmth in week 4.

September is gradually getting cooler, almost every year and heating degree days start replacing cooling degree days as being the most important.

In October onward, warmth like this, especially in the Northern States will be increasingly BEARISH because it decreases the need for warming energy vs heat currently still increasing the need for cooling energy.  

Check in tomorrow to read something different............."low skill" (-:

 


http://www.cpc.ncep.noaa.gov/products/people/mchen/CFSv2FCST/weekly/images/wk3.wk4_latest.NAsfcT.gif

Precip below:

http://www.cpc.ncep.noaa.gov/products/people/mchen/CFSv2FCST/weekly/images/wk3.wk4_latest.NAprec.gif

By metmike - Sept. 9, 2018, 7:36 p.m.
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NWS Week 2 maps below.  These are automated on the weekends. 


6-10 day Temperature Probability

6 to 10 Day Outlook - Temperature Probability
 Precipitation Probability

  6 to 10 Day Outlook - Precipitation Probability


8-14 day Temperature Probability

8 to 14 Day Outlook - Temperature Probability
 Precipitation Probability

  8 to 14 Day Outlook - Precipitation Probability
By metmike - Sept. 9, 2018, 7:36 p.m.
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NWS Week 2 maps below.  These are automated on the weekends. 


6-10 day Temperature Probability

6 to 10 Day Outlook - Temperature Probability
 Precipitation Probability

  6 to 10 Day Outlook - Precipitation Probability


8-14 day Temperature Probability

8 to 14 Day Outlook - Temperature Probability
 Precipitation Probability

  8 to 14 Day Outlook - Precipitation Probability