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Jefferson County, KY Weather And Climate Synopsis

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Regional Hourly Observations For JEFFERSON County, Kentucky
Issued at 400 PM EDT SAT JUN 24 2017
NORTH CENTRAL KENTUCKY
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
LOUISVILLE/SDF PTSUNNY   81  56  42 NW15      30.03S                  
LOUISVILLE/LOU MOSUNNY   81  57  43 W14       30.03S                  
FORT KNOX      PTSUNNY   78  58  50 W13G18    30.04R                  

KY Round-up, Current Temperatures, Dewpoint, Rh, Wind, Regional Obs., Station Model, Surface 4-Panel, NWS Louisville
Meteograms: Paducah , Evansville , Bowling Green , Hopkinsville , Frankfort , Louisville , Lexington , Covington , Jackson , London , Shelby Co. Weather , Spindletop Research Weather Station , Woodford Co. Research Weather Station , About Meteograms


Current Agriculture, Lawn & Garden Weather Conditions in Kentucky
Based on observations at 400pm EDT, Saturday June 24, 2017

Across Kentucky...temperatures are near 80 degrees west, near 79 degrees central, and near 80 degrees east. Current sky conditions are mostly sunny west, cloudy central, and mostly sunny east. In the west, relative humidity is near 46%, and the dew point is near 58 degrees. In the central part of the state, relative humidity is near 46%, and the dew point is near 57 degrees. In the east, relative humidity is near 54%, and the dew point is near 62 degrees. Current drying conditions are good west, good central, and fair east. The livestock heat stress category is no stress west, no stress central, and no stress east. Winds are from the northwest at 9 mph west, where conditions are favorable for spraying. Winds are from the northwest at 12 mph with gusts at 18 mph central, where conditions are not favorable for spraying due to strong winds. Winds are variable at 6 mph east, where conditions are favorable for spraying. Based on current available observations, the highest temperature is 81 degrees at Louisville International, Louisville Bowman, and London. The lowest temperature is 78 degrees at Fort Knox and Covington.

List of Agriculture, Lawn & Garden Weather Observations in Kentucky


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.

UKAWC Radar, NWS Radar (NEW!), SPC Radar, Regional Radar, SkyWarn, NEXRAD, LSI Heat Index
Hazardous Weather Outlook For JEFFERSON County, Kentucky
Issued at: Sat Jun 24 15:18:21 EDT 2017

English, Tell City, Corydon, New Albany, Jeffersonville, Lewisport, 
Hawesville, Hardinsburg, Brandenburg, Hartford, Leitchfield, 
Elizabethtown, Shepherdsville, Louisville, La Grange, Bedford, 
Milton, New Castle, Shelbyville, Frankfort, Georgetown, Cynthiana, 
Taylorsville, Lawrenceburg, Versailles, Lexington, Paris, Carlisle, 
Bardstown, Springfield, Harrodsburg, Nicholasville, Winchester, 
Hodgenville, Lebanon, Danville, Lancaster, Richmond, Morgantown, 
Brownsville, Horse Cave, Greensburg, Campbellsville, Liberty, 
Stanford, Russellville, Bowling Green, Franklin, Providence, 
Scottsville, Glasgow, Tompkinsville, Edmonton, Columbia, Jamestown, 
Burkesville, and Albany
318 PM EDT Sat Jun 24 2017 /218 PM CDT Sat Jun 24 2017/

This hazardous weather outlook is for portions of south central
Indiana and Central Kentucky.

.DAY ONE...Tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

The return of more seasonal heat and humidity is expected to bring  
scattered afternoon and evening thunderstorms to the area by Friday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time. 

&&

More information, along with other weather, hydrological and
climate information can be found, at weather.gov/louisville.

NWS Severe Weather Map , Convective Outlook


RDF forecast not available NEW NWS Experimental Weather Activity Planner: West, Central, East
NWS Experimental Point Forecasts (5 km x 5 km grid for Kentucky): West, Central, East

JEFFERSON County, Kentucky Agriculture, Lawn & Garden Weather Advisory

Updated: 310 AM EST THU NOV 12 2009

TODAY (6AM-5PM)

Max Temperature...........................61 degrees.
Precipitation (liq. eq. )...................0.00 inches (No rainfall).
Precipitation area .........................0% of the county expected.
Dewpoints.......................................29 to 34 Degrees.
Min RH (Relative Humidity).........37%.
Wind Speed....................................4 to 10 mph
Winds@3 PM..................................northeast at 10 mph
Spraying Conditions....................favorable
Sky Conditions @9 AM ...............mostly sunny.
RH < 50%........................................ for 7 hours
RH > 80%.........................................for 0 hour
No. of Hours Temp <=32 .............0
No. of Hours Temp <= 20 .............0
No. of Hours Temp <= 0 ...............0

The high today (6am-5pm) in Jefferson county, is expected to be near 61 degrees. No rainfall is expected. Temperature will range from near 39 to near 60 degrees. Dewpoints will range from 29 to 34 degrees. These dewpoints will combine with today (6am-5pm)'s temperatures resulting in relative humidity minimum of 37%. Skies will be mostly sunny at 9 AM and mostly sunny at 3 PM. Wind speed will range from 4 to 10 mph during the period. Winds at 3 PM will be out of the northeast at 10 mph, which is favorable spraying conditions in rain-free areas. Relative humidity will be less than 50% for 7 hours and greater than 80% for 0 hour

TONIGHT (6PM-5AM)

Min Temperature...........................38 degrees.
Precipitation (liq. eq. )...................0.00 inches (No rainfall).
Precipitation area .........................0% of the county expected.
Dewpoints.......................................near 34 Degrees.
Max RH (Relative Humidity)........76%.
Wind Speed....................................2 to 8 mph
Winds@3 AM..................................northeast at 3 mph
Spraying Conditions....................favorable
Sky Conditions @12 AM .............clear.
Sky Conditions @3 AM ...............clear.
RH < 50%........................................ for 1 hour
RH > 80%.........................................for 0 hour
No. of Hours Temp <=32 .............0
No. of Hours Temp <= 20 .............0
No. of Hours Temp <= 0 ...............0

The low tonight (6pm-5am) in Jefferson county, is expected to be around 38 degrees. No rainfall is expected. Temperature will range from near 41 to near 53 degrees. Dewpoints will be near 34 degrees. These dewpoints will combine with tonight (6pm-5am)'s temperatures resulting in relative humidity maximum of 76%. Skies will be clear at 12 AM and clear at 3 AM. Wind speed will range from 2 to 8 mph during the period. Winds at 3 AM will be out of the northeast at 3 mph, which is favorable spraying conditions in rain-free areas. Relative humidity will be less than 50% for 1 hour and greater than 80% for 0 hour

TOMORROW (6AM-5PM)

Max Temperature...........................64 degrees.
Precipitation (liq. eq. )...................0.00 inches (No rainfall).
Precipitation area .........................0% of the county expected.
Dewpoints.......................................34 to 42 Degrees.
Min RH (Relative Humidity).........41%.
Wind Speed....................................2 to 5 mph
Winds@3 PM..................................southeast at 3 mph
Spraying Conditions....................favorable
Sky Conditions @9 AM ...............mostly sunny.
Sky Conditions @3 PM ...............mostly sunny.
RH < 50%........................................ for 5 hours
RH > 80%.........................................for 2 hours
No. of Hours Temp <=32 .............0
No. of Hours Temp <= 20 .............0
No. of Hours Temp <= 0 ...............0

The high tomorrow (6am-5pm) in Jefferson county, is expected to be near 64 degrees. No rainfall is expected. Temperature will range from near 41 to near 64 degrees. Dewpoints will range from 34 to 42 degrees. These dewpoints will combine with tomorrow (6am-5pm)'s temperatures resulting in relative humidity minimum of 41%. Skies will be mostly sunny at 9 AM and mostly sunny at 3 PM. Wind speed will range from 2 to 5 mph during the period. Winds at 3 PM will be out of the southeast at 3 mph, which is favorable spraying conditions in rain-free areas. Relative humidity will be less than 50% for 5 hours and greater than 80% for 2 hours

TOMORROW NIGHT (6PM-5AM)

Min Temperature...........................46 degrees.
Precipitation (liq. eq. )...................0.00 inches (No rainfall).
Precipitation area .........................0% of the county expected.
Dewpoints.......................................42 to 44 Degrees.
Max RH (Relative Humidity)........89%.
Wind Speed....................................2 to 3 mph
Winds@3 AM..................................south at 2 mph
Spraying Conditions....................favorable
Sky Conditions @12 AM .............mostly clear.
Sky Conditions @3 AM ...............mostly clear.
RH < 50%........................................ for 0 hour
RH > 80%.........................................for 3 hours
No. of Hours Temp <=32 .............0
No. of Hours Temp <= 20 .............0
No. of Hours Temp <= 0 ...............0

The low tomorrow night (6pm-5am) in Jefferson county, is expected to be around 46 degrees. No rainfall is expected. Temperature will range from near 47 to near 59 degrees. Dewpoints will range from 42 to 44 degrees. These dewpoints will combine with tomorrow night (6pm-5am)'s temperatures resulting in relative humidity maximum of 89%. Skies will be mostly clear at 12 AM and mostly clear at 3 AM. Wind speed will range from 2 to 3 mph during the period. Winds at 3 AM will be out of the south at 2 mph, which is favorable spraying conditions in rain-free areas. Relative humidity will be less than 50% for 0 hour and greater than 80% for 3 hours

72 HOUR SUMMARY

The temperature is expected to be in the range from 38 degrees and 67 degrees. Dewpoints will range from 29 to 47 degrees. No measurable precipitation is expected.


Ag. Weather Forecast Parameter Maps:Spraying Conditions , Dewpoint Temperatures, Livestock Heat Stress


Extended Digital forecast not available
Current FORECAST not available TWC Forecast, NWS Maps, Fire Danger, Day 1 Precip, Day 2, 5 Day Total, Days 1-5
NGM 60 Hr Forecast Meteograms: Paducah , Evansville , Bowling Green , Hopkinsville , Frankfort , Louisville , Lexington , Covington , Jackson , London, All Kentucky Hourly Model Guidance, About NGM Forecast Meteograms

Kentucky Agricultural Weather Medium-Range Outlook (Based on the MEX Model)

MEDIUM RANGE AG FORECAST:

- Click here for Graphical Ag. Weather Forecast -

MONDAY :
Highs across the state will range from 78 West and 77 Central, to 71 East. Dewpoints will range from 52 to 55 West, 52 to 48 Central, and 52 to 51 East throughout the day. Rainfall amounts of 0.00-0.01 inches over 20 % of the area West, 0.00-0.01 inches over 30 % of the area Central, and 0.00-0.01 inches over 20 % of the area East should be expected. Lows Monday will fall to 56 West, 57 Central, and 55 East. Skies throughout the day will start out clear and end partly cloudy in the West, start clear and end partly cloudy Central, and start out clear and end partly cloudy East. The maximum livestock stress category will be no stress West, no stress Central, and no stress East. There will be 17 corn growing degree days West, 17 Central, and 13 East. Wind speeds in the morning and afternoon will be around 5 and 6 mph , respectively, West, 13 and 15 mph Central, and 5 and 9 mph East.

TUESDAY :
Highs across the state will range from 83 West and 78 Central, to 73 East. Dewpoints will range from 57 to 60 West, 54 to 50 Central, and49 to 53 East throughout the day. Rainfall amounts of 0.00-0.01 inches over 20 % of the area West, 0.00-0.01 inches over 30 % of the area Central, and 0.00-0.01 inches over 30 % of the area East should be expected. Lows Tuesday will fall to 59 West, 57 Central, and 55 East. Skies throughout the day will start out partly cloudy and end clear in the West, start partly cloudy and end clear Central, and start out partly cloudy and end partly cloudy East. The maximum livestock stress category will be no stress West, no stress Central, and no stress East. There will be 21 corn growing degree days West, 18 Central, and 14 East. Wind speeds in the morning and afternoon will be around 3 and 5 mph , respectively, West, 10 and 6 mph Central, and 4 and 5 mph East.

WEDNESDAY :
Highs across the state will range from 88 West and 87 Central, to 81 East. Dewpoints will range from 62 to 64 West, 57 to 60 Central, and 53 to 57 East throughout the day. Rainfall amounts of 0.00-0.01 inches over 20 % of the area West, 0.00-0.01 inches over 10 % of the area Central, and 0.00-0.01 inches over 10 % of the area East should be expected. Lows Wednesday will fall to 64 West, 62 Central, and 57 East. Skies throughout the day will start out clear and end clear in the West, start clear and end clear Central, and start out clear and end clear East. The maximum livestock stress category will be danger West, no stress Central, and no stress East. There will be 25 corn growing degree days West, 24 Central, and 19 East. Wind speeds in the morning and afternoon will be around 4 and 12 mph , respectively, West, 6 and 11 mph Central, and 2 and 2 mph East.

THURSDAY :
Highs across the state will range from 88 West and 88 Central, to 85 East. Dewpoints will range from 66 to 67 West, 65 to 64 Central, and59 to 63 East throughout the day. Rainfall amounts of 0.00-0.01 inches over 20 % of the area West, 0.00-0.01 inches over 20 % of the area Central, and 0.00-0.01 inches over 30 % of the area East should be expected. Lows Thursday will fall to 68 West, 70 Central, and 64 East. Skies throughout the day will start out clear and end partly cloudy in the West, start clear and end partly cloudy Central, and start out clear and end clear East. The maximum livestock stress category will be danger West, danger Central, and no stress East. There will be 27 corn growing degree days West, 28 Central, and 24 East. Wind speeds in the morning and afternoon will be around 7 and 13 mph , respectively, West, 9 and 15 mph Central, and 3 and 5 mph East.

FRIDAY :
Highs across the state will range from 88 West and 88 Central, to 83 East. Dewpoints will range from 68 to 71 West, 65 to 66 Central, and 64 to 65 East throughout the day. Rainfall amounts of 0.00-0.01 inches over 30 % of the area West, 0.00-0.01 inches over 30 % of the area Central, and 0.00-0.01 inches over 40 % of the area East should be expected. Lows Friday will fall to 71 West, 71 Central, and 66 East. Skies throughout the day will start out cloudy and end cloudy in the West, start partly cloudy and end cloudy Central, and start out partly cloudy and end cloudy East. The maximum livestock stress category will be danger West, danger Central, and no stress East. There will be 28 corn growing degree days West, 28 Central, and 24 East. Wind speeds in the morning and afternoon will be around 10 and 13 mph , respectively, West, 12 and 13 mph Central, and 4 and 3 mph East.

SATURDAY :
Highs across the state will range from 84 West and 85 Central, to 84 East. Dewpoints will range from 70 to 67 West, 67 to 64 Central, and 66 to 69 East throughout the day. Rainfall amounts of 0.00-0.01 inches over 40 % of the area West, 0.00-0.01 inches over 40 % of the area Central, and 0.00-0.01 inches over 60 % of the area East should be expected. Lows Saturday will fall to 72 West, 71 Central, and 68 East. Skies throughout the day will start out cloudy and end cloudy in the West, start cloudy and end cloudy Central, and start out cloudy and end cloudy East. The maximum livestock stress category will be no stress West, no stress Central, and no stress East.There will be 28 corn growing degree days West, 28 Central, and 26 East. Wind speeds in the morning and afternoon will be around 12 and 17 mph, respectively, West, 14 and 17 mph Central, and 4 and 5 mph East.

Raw Data: MEX(west), MEX(central), MEX(east)

* NOTE: See specific site Ag Wx Data and Summary files for further information.

Graphic Regional Ag. Weather Outlook, Tabular data for the Medium Range Outlook


Medium & Long Range Outlook For Kentucky
                             KENTUCKY                                                                     
                 ---------------------------------------------
                 6 TO 10 DAY  8 TO 14 DAY   30 DAY    90 DAY 
                JUN 30-JUL 4  JUL 2-JUL 8    JUL       JUL-SEP                      
                 -----------  -----------  --------  ---------
   Temperature:      Above        Above      Above      Above                      
 Precipitation:      Above        Above     Normal     Normal                      

....  Medium and long range outlooks provided by NCEP/K. Thomas Priddy
UKAWC 8 Day Forecast Maps, TWC Jet, 15-Day Jet,Trend, Max/Mins (80k)
6 to 10 Day , 8 to 14 Day , Text, 30-Day Outook, 90-Day Outook, 120-Day Outlook


Precipitation Report: (liquid equivalent)

Total Precipitation and Deviation From Normal (in inches)
Valid May 27, 2012

The nearest available weather station for Jefferson County is Louisville:

                      Past 7 days      Past 30 days   Jan 1 - Present
Station             Total     Dev     Total     Dev     Total     Dev
---------------     -----  ------     -----  ------    ------  ------
Louisville           0.00   -1.04      4.72   +0.28     18.26   -0.66
List of Kentucky Weather Stations (1st Order & Ag. stations) Rainfall
UKAWC Regional Ag Weather Summary (Select Format): Spring , Summer , Fall

Drought Status For JEFFERSON County, Kentucky
(Based on the latest Palmer Drought Severity and Crop Moisture Indices)
CENTRAL   KY CLIMATE DIVISION

Hydrological Drought (PDSI) Situation:
------------------------------------------------------------------------------------

Current Long-term Hydrological Moisture Status: NEAR NORMAL           (PDSI=  -0.74)
Rainfall Needed:  2.69 inches ABOVE NORMAL


Crop Moisture (CMI) Situation:
----------------------------------------------------------------------------------------------------------

Current Short-term Crop Moisture Status: Favorable For Normal Growth And Fieldwork    (CMI=   0.33)
Change From Previous Week: DRIER      SOILS ( -0.50)

Note: Due to rainfall variability within each climate division, check Precip Reports/GIS Estimates and the Kentucky Climate Summary for the latest moisture information for this county.

Additional Drought Info.: UKAWC Drought Page


Kentucky Climate Summary
normal. High temperatures averaged from 86 in the West to 84 in the East. Departure from normal high temperatures ranged from -2 degrees from normal in the West to +0 degrees from normal in the East. Low temperatures averaged from 67 degrees in the West to 65 degrees in the East. Departure from normal low temperature ranged from +3 degrees from normal in the West to +2 degrees from normal in the East.

Precipitation (liq. equ.) for the period totaled 1.55 inches statewide which was + 0.66 inches from normal. Precipitation totals by climate division, West 1.38 inches, Central 1.66 inches, Bluegrass 1.53 inches and East 1.56 inches, which was + 0.52, + 0.75, + 0.65 and + 0.65 inches respectively from normal. By station, precipitation totals ranged from a low of 0.18 inches at Henderson to a high of 3.66 inches at Spindletop.

Kentucky Climate Summaries: Last 3 days, 7 days, 14 days, 21 days, 30 days
Yesterday's Weather Data, Kentucky Climate Analysis, Kentucky Climate in Review (2005)


EUROPEAN CORN BORER not available
European Corn Borer Accumulation Map


GIS ESTIMATES FOR JEFFERSON COUNTY
Valid July 29, 2013

The GIS estimates are derived by ARC/INFO GIS software for a
central point in the county.  The estimates are calculated from
from 29 weather stations in the Kentucky area.

Precipitation Estimates

                     Last 3   Last 7   Last 14   Last 30     Since
                       Days     Days      Days      Days     Jan 1
_______________________________________________________________________________
Precip Total           0.03     1.89      2.16      5.77     28.78
Precip Deviation      -0.41     0.87      0.13      1.47      1.66

Temperature Estimates

                     Last 3        Last 7       Last 14       Last 30
                       Days          Days          Days          Days
_____________________________________________________________________
Temp Average             71            74            79            77
Temp Deviation           -5            -2             3             1

Soil Temperature Estimates

                                Yesterday
_________________________________________
Avg 4" Sod Soil Temp   	               76

European Corn Borer Degree Days Accumulations

Degree Days                      Forecasted Accumulations
      Total          550      610      750     1660     1740
____________________________________________________________
       2140         5/10     5/13     5/21     6/28      7/1

Almanac Information
Saturday June 24, 2017 the 175th Day of Year

---------------------------------------------------
SUN
Declination 23.380000
Distance 0.999715 AU
Rise 06:17 EDT Set 21:05 EDT
Transit Meridian 13:41 EDT
Civil Twilight Begins 05:47 EDT Ends 21:35 EDT

---------------------------------------------------
Normal Max/Min Temperature for Today: 86 / 63
---------------------------------------------------


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

Sunrise/Sunset/Moonrise/Moonset Computation (USN)
TEMPERATURE is not available
Yesterday's U.S. Highs, Lows , KY's Highs/Lows/Precip, Daily Weather Data, Hourly Weather Data
Historical Weather And Climate Facts For Today
..............................
JUNE 24TH...HISTORIC WEATHER EVENTS
...1816...
The cold weather of early June finally gave way to several days of 90
degree heat in Massachusetts, including a reading of 99 degrees at Salem.
(David Ludlum)
...1924...
Six men at a rock quarry south of Winston-Salem NC sought shelter from a
thunderstorm. The structure chosen contained a quantity of dynamite.
Lightning struck a near-by tree causing the dynamite to explode. The men
were killed instantly. (The Weather Channel)
...1951...
Twelve inches of hail broke windows and roofs, and dented automobiles,
causing more than fourteen million dollars damage. The storm plowed 200
miles from Kingmand County KS into Missouri, with the Wichita area hardest
hit. It was the most disastrous hailstorm of record for the state of
Kansas. (David Ludlum)
...1952...
Thunderstorms produced a swath of hail 60 miles long and 3.5 miles wide
through parts of Hand, Beadle, Kingsbury, Miner and Jerauld counties in
South Dakota. Poultry and livestock were killed, and many persons were
injured. Hail ten inches in circumference was reported at Huron SD. (The
Weather Channel)

UKAWC Briefing Page

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