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Macon County, TN Weather And Climate Synopsis

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36 Hr. Forecast Map
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Weather Summary Hourly Observations Nowcast Agricultural Weather Outlook
7 Day Forecast Medium & Long Range Outlook Almanac Historical Facts

US Weekly Rainfall Departure

US Weekly Temperature Departure
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A joint service of the UK Ag Weather Center and the National Weather Service.

National Weather Service Nashville TN
323 AM CDT Mon Oct 22 2018


A Freeze Warning remains in effect until 8 am this morning.

At 2 am, it was mostly clear and cold across the Mid-State, with 
temperatures in the 30s. A number of locations already had 
readings at or near the freezing mark, while the Nashville heat 
island still clung to readings in the mid to upper 30s. Since dew 
points are running mainly in the lower 30s, you can expect areas 
of fog or freezing fog to develop near rivers and lakes as the
temperatures cool before sunrise, some of which could become 
locally dense. Patchy fog is expected elsewhere early this 
morning. In addition to the widespread occurrence of freezing 
temperatures and fog, you can also expect quite a bit of frost to 
hang around until about 8 am.

After a cold start to the day, you can expect widespread sunshine
to send afternoon temperatures into the lower and middle 60s. 

A dry cold front sweeps through tonight, but doesn't bring any
real cooling behind it. The main effect will simply be to turn our
winds back to the north. Lows tonight will be mainly around 40
degrees, with highs on Tuesday actually a little warmer than
today's readings, topping out in the middle to upper 60s. 

Some high clouds will start to work their way into our area on
Wednesday, along the northeastern periphery of a developing low 
pressure system along the Texas coast. Low level thicknesses over
the Mid-State come down about 20 meters, resulting in high 
temperatures about 5 or 6 degrees cooler than Tuesday's readings. 

The low pressure area off the Texas coast merges with the remnants
of a tropical low (currently known as Hurricane Willa, approaching
western Mexico) and then tracks across the southeastern U.S.
during the middle to latter part of the week, bringing rain 
chances to our area as early as Thursday afternoon. The GFS is 
further south with the placement of a surface low than the EURO in
the latest 00z runs, with the Canadian even further south than 
the GFS. Given that a shortwave will also be traversing the CWA 
Thursday morning, a deepening trough and northwest flow will be 
taking shape over the Midwest, and a decent amount of rising 
motion will move out ahead of these features, confidence increases
for higher PoPs Thursday evening into Friday morning. Expect a 
brief break from the rain Friday evening before another system 
rapidly drops in from the northwest, bringing more chances for 
rain during late morning and afternoon hours on Saturday. Light 
rain may even hang on thru the weekend until Monday midday, before
exiting east.

Daytime temperatures will remain in the 50s to near 60F late week 
into the weekend, with overnight lows generally in the low to mid 
40s. Overall, not expecting a late week washout, but keep the 
umbrella around just in case.

National Ag. Weather Outlook, International Ag. Weather Summary
Current Surface Map, [2nd Source TWC]

Click here for UKAWC Point Agricultural, Lawn & Garden Forecast/Outlook in case of corrupt tables.
Regional Hourly Observations For MACON County
Issued at 500 AM CDT MON OCT 22 2018

CROSSVILLE       N/A     31  29  92 CALM      30.26R                  
DICKSON        CLEAR     34  32  93 CALM      30.25S                  
GALLATIN       SUNNY     32  32 100 CALM      30.29S                  
LEBANON        CLEAR     32  30  93 CALM      30.26S                  
LIVINGSTON     CLEAR     36  32  87 SW5       30.25R WCI  32          
NASHVILLE        N/A     35  32  88 S3        30.28R                  
PORTLAND       CLEAR     32  32 100 S3        30.25S                  
ROCKWOOD       CLEAR     34  32  93 W3        30.26R                  
SMYRNA           N/A     31  31 100 CALM      30.29R                  
SPARTA         CLEAR     30  30 100 CALM      30.26R                  
SPRINGFIELD    CLEAR     32  32 100 CALM      30.24S                  
WEST NASHVILLE FOG       34  32  93 CALM      30.26R VSB 1/4          

Current Temperatures, Dewpoint, RH, Wind, Regional Obs, Surface 4-Panel

Current Agricultural Weather Conditions in Tennessee
Based on observations at 500am CDT, Monday October 22, 2018

Across Tennessee...temperatures are near 42 degrees west, near 35 degrees central, and near 35 degrees east. Current sky conditions are fair west, fair central, and fair east. In the west, relative humidity is near 85%, and the dew point is near 38 degrees. In the central part of the state, relative humidity is near 88%, and the dew point is near 32 degrees. In the east, relative humidity is near 100%, and the dew point is near 35 degrees. Winds are from the east at 3 mph west, where conditions are favorable for spraying. Winds are from the south at 3 mph central, where conditions are favorable for spraying. Winds are calm east, where conditions are favorable for spraying. Based on current available observations, the highest temperature is 42 degrees at Memphis International Airport. The lowest temperature is 31 degrees at Smyrna and Crossville.

Current NOWCAST not available:
Nowcasts are not issued routinely during fair weather. Only when
precipitation or other significant weather is occuring in this county will these
forecasts be issued. Currently, there is no short term forecast in effect.

US Radar, All NWS Radars (In near-real time), Current Livestock Heat Stress Index (LSI), Current Wind Chill Map
Hazardous Weather Outlook For MACON County,TN

513 AM CDT Mon Oct 22 2018

 DAY ONE  Today and Tonight

A Freeze Warning remains in effect until 8 am CDT. 

 DAYS TWO THROUGH SEVEN  Tuesday through Sunday

No hazardous weather is expected at this time.


Spotter activation will not be needed.

NWS Severe Weather Map , Convective Outlook

7-Day Forecast For MACON County, TN
234 AM CDT Mon Oct 22 2018


Mostly sunny. Areas of frost and patchy fog early in the morning. Highs in the lower 60s. Southwest winds up to 10 mph.

Mostly clear. Lows around 40. Southwest winds up to 5 mph.

Mostly sunny. Highs in the mid 60s. Northwest winds up to 10 mph.

Clear. Lows in the upper 30s. North winds 5 to 10 mph.

Mostly sunny. Highs in the upper 50s. Northeast winds 5 to 15 mph.

Partly cloudy. Lows in the upper 30s.

Mostly cloudy. Highs in the mid 50s.

Mostly cloudy with a 20 percent chance of rain. Lows in the lower 40s.

Mostly cloudy with a 40 percent chance of rain. Highs in the upper 50s.

Mostly cloudy. Lows in the lower 40s.

Partly sunny with a 30 percent chance of rain. Highs in the upper 50s.

Mostly cloudy. A 50 percent chance of rain. Lows in the mid 40s. Highs in the mid 50s.

12-48 Hr Surface Forecast Maps, TWC 4-Panel Surface Forecast, Fire Danger, Day 1 Precip, Day 2 Precip, Days 1-5 Precip, Severe Weather Pot.-Day 1, Day 2

Medium & Long Range Outlook For Tennessee
                 6 TO 10 DAY  8 TO 14 DAY   30 DAY    90 DAY 
               OCT 27-OCT 31 OCT 29-NOV 4    OCT       OCT-DEC                      
                 -----------  -----------  --------  ---------
   Temperature:      Below        Below                                            
 Precipitation:      Above        Above                                            

....  Medium and long range outlooks provided by NCEP/K. Thomas Priddy
5 Day Rainfall Forecast, 6 to 10 Day , 8 to 14 Day , Text, 30-Day Outook, 90-Day Outook, 120-Day Outlook

Almanac Information

Monday October 22, 2018 the 295th Day of Year

Declination -11.380000
Distance 0.999721 AU
Rise 08:00 EDT Set 19:01 EDT
Transit Meridian 13:31 EDT
Civil Twilight Begins 07:35 EDT Ends 19:26 EDT

Calculations made for central point in the state.
Time in ET -- and will vary due to location and
elevation -- Priddy

Historical Weather And Climate Facts For Today

The temperature soared to 104 degrees at San Diego CA. Southern California
was in the midst of a late October heat wave that year. Los Angeles had ten
consecutive days with afternoon highs reaching 100 degrees. (David Ludlum)
(The Weather Channel)
A guest on the top floor of a hotel in Seattle WA was seriously injured
while talking on the phone when lightning struck. Several persons are
killed each year when the electrical charge from a lightning bolt travels
via telephone wiring. (The Weather Channel)
Yakutat AK surpassed their previous all-time yearly precipitation total of
190 inches. Monthly records were set in June with 17 inches, in September
with 70 inches, and in October with more than 40 inches. (Sandra and TI
Richard Sanders - 1987)
Twenty-two cities in the eastern U.S., most of them in the southeast
states, reported record low temperatures for the date. Morning lows of 30
degrees at Athens GA, 28 degrees at Birmingham AL, and 23 degrees at Pinson
AL, were the coldest of record for so early in the season. (The National
Weather Summary)
Showers produced heavy rain in southern California, with amounts ranging up
to five inches at Blue Jay. Flash flooding resulted in two deaths, ten
injuries, and more than a million dollars damage. (The National Weather
Summary) (Storm Data)
A "nor'easter" swept across the coast of New England. Winds gusted to 75
mph, and large waves and high tides caused extensive shoreline flooding. A
heavy wet snow blanketed much of eastern New York State, with a foot of
snow reported in Lewis County. (The National Weather Summary) (Storm Data)
A storm system moving out of the Gulf of Alaska brought rain to the
Northern and Central Pacific Coast Region, with snow in some of the
mountains of Oregon, and wind gusts to 60 mph along the Oregon coast. Six
cities in Florida reported record low temp-eratures for the date, including
Tallahassee with a reading of 34 degrees. (The National Weather Summary)
(Storm Data)

Ag Weather Center, Department of Biosystems & Agricultural Engineering, University of Kentucky