1st Responders/1st Detectors/Storm Spotters Weather Summary for Jefferson County, KY

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Jefferson County, KY Hazardous Weather Outlook Webcast
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UKAWC 1st Detectors/1st Responders Precision Weather Forecast For JEFFERSON County, Kentucky
(based on the NWS County Digital Forecast)

ISSUED AT 04:00 UTC ON THURSDAY JUN 04 2020
DAY THURSDAY
EDT 3HR 1A 2A 3A 4A 5A 6A 7A 8A 9A 10A 11A NOON 1P 2P 3P 4P 5P 6P 7P
MAX/MIN -- -- -- -- -- -- -- 70° -- -- -- -- -- -- -- -- -- -- 86°
TEMP 72° 70° 70° 70° 70° 70° 70° 72° 72° 76° 79° 81° 83° 85° 86° 86° 85° 85° 81°
SKY COVER 53% 59% 59% 58% 58% 58% 58% 57% 45% 48% 44% 47% 53% 54% 51% 64% 55% 71% 69%
Clouds
DEW PT 65° 65° 65° 65° 65° 65° 65° 67° 67° 68° 68° 68° 70° 70° 70° 70° 68° 68° 68°
RH 79% 81% 81% 84% 87% 86% 86% 84% 84% 79% 71% 65% 62% 58% 57% 56% 57% 59% 64%
POP 12HR -- -- -- -- -- -- -- 20% -- -- -- -- -- -- -- -- -- -- --
RAIN/SNOW (liq.equ) -- 0.00in -- -- -- -- -- 0.02in -- -- -- -- -- 0.01in -- -- -- -- --
SNOWFALL -- 0in -- -- -- -- -- 0in -- -- -- -- -- 0in -- -- -- -- --
WIND SPEED(MPH) 5 5 5 5 5 6 5 6 7 8 8 8 8 9 8 8 7 7 7
WIND Gust(MPH) 10 10 10 13 13 13 9 13 15 15 15 15 15 15 14 14 13 10 9
WIND DIR SW S S SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW
DEW Lgt Dew Mod Dew Mod Dew Mod Dew Mod Dew Mod Dew Mod Dew Mod Dew Mod Dew Lgt Dew -- -- -- -- -- -- -- -- --
HeatIndex 72 70 70 70 70 70 70 72 72 76 79 85 88 90 92 92 90 88 85
Rain Showers -- -- Slight Chance Slight Chance Slight Chance Slight Chance Slight Chance -- -- -- Slight Chance Slight Chance Slight Chance Likely Likely Likely Likely Likely Likely
Thunder Storm -- -- Slight Chance Slight Chance Slight Chance Slight Chance Slight Chance -- -- -- Slight Chance Slight Chance Slight Chance Chance Chance Chance Chance Chance Chance
WIND CHILL -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
SPRAY COND
DRY COND
LIVESTOCK HEATSTRESS 70.48 68.83 68.83 69.01 69.20 69.14 69.14 70.84 70.84 74.01 75.78 76.73 77.94 78.95 79.57 79.42 78.80 79.09 76.60



DAY FRIDAY SATURDAY SUNDAY MONDAY TUESDAY WEDNESDAY
EDT 6HR 8P 9P 10P 11P MIDN 1A 2A 3A 4A 5A 6A 7A 8A 9A 10A 11A NOON 2P 5P 8P 11P 2A 5A 8A 11A 2P 5P 8P 2A 8A 2P 8P 2A 8A 2P 8P 2A 8A 2P 8P 2A 8A 2P 8P
MAX/MIN -- -- -- -- -- -- -- -- -- -- -- -- 70° -- -- -- -- -- 88° -- -- -- -- 68° -- -- 88° -- -- 63° 83° -- -- 61° 86° -- -- 67° 88° -- -- 68° 83° --
TEMP 79° 76° 74° 72° 72° 72° 70° 70° 70° 70° 70° 70° 72° 74° 77° 79° 81° 83° 85° 81° 74° 72° 70° 72° 81° 85° 86° 83° 68° 65° 81° 79° 65° 65° 83° 81° 68° 68° 85° 81° 72° 70° 81° 76°
SKY COVER 67% 69% 67% 64% 72% 71% 71% 70% 69% 69% 68% 68% 68% 66% 63% 62% 62% 61% 56% 60% 44% 43% 43% 48% 17% 32% 31% 16% 11% 11% 16% 25% 42% 37% 29% 35% 35% 40% 45% 47% 61% 60% 62% 60%
Clouds
DEW PT 67° 67° 67° 67° 67° 67° 67° 67° 67° 67° 67° 67° 68° 70° 70° 70° 70° 70° 70° 70° 68° 67° 67° 68° 70° 70° 68° 65° 61° 59° 59° 58° 56° 56° 61° 61° 61° 63° 68° 67° 67° 67° 65° 61°
RH 69% 73% 78% 84% 84% 87% 89% 93% 90% 90% 90% 90% 89% 84% 78% 73% 69% 63% 59% 67% 81% 87% 92% 90% 71% 59% 55% 56% 78% 81% 47% 50% 69% 72% 45% 52% 75% 81% 57% 62% 84% 87% 58% 62%
POP 12HR 55% -- -- -- -- -- -- -- -- -- -- -- 32% -- -- -- -- -- -- 46% -- -- -- 30% -- -- -- 32% -- 2% -- 2% -- 2% -- 6% -- 10% -- 28% -- 38% -- 45%
RAIN/SNOW (liq.equ) 0.05in -- -- -- -- -- 0.08in -- -- -- -- -- 0.05in -- -- -- -- 0.03in -- 0.04in -- 0.03in -- 0.14in -- 0.00in -- 0.00in -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
SNOWFALL 0in -- -- -- -- -- 0in -- -- -- -- -- 0in -- -- -- -- 0in -- 0in -- 0in -- 0in -- 0in -- 0in -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
WIND SPEED(MPH) 2 2 1 1 1 1 1 1 1 1 1 1 1 2 5 5 5 5 2 1 1 0 0 0 1 1 2 2 1 5 6 6 6 6 6 6 5 5 6 6 6 7 7 6
WIND DIR SW S S S S S S S S S S SW SW SW SW SW SW SW W SW SW S SW W NW NW N N NE NE E NE E E E E E SE S SE S SW SW W
HeatIndex 79 76 74 72 72 72 70 70 70 70 70 70 72 74 77 83 86 88 90 85 74 72 70 72 85 90 91 85 68 65 82 79 65 65 84 82 68 68 90 85 72 70 82 76
Rain Showers Chance Chance Chance Chance Chance Chance Slight Chance Slight Chance Slight Chance Slight Chance Slight Chance Slight Chance Slight Chance Slight Chance Slight Chance Slight Chance Slight Chance Chance Chance Chance Chance Chance Chance Chance Chance Chance Chance -- -- -- -- -- -- -- -- -- -- Slight Chance Chance Chance Chance Chance Chance Chance
Thunder Storm Chance Chance Chance -- -- -- -- -- -- -- -- -- -- -- -- -- -- Slight Chance Chance -- -- -- -- -- -- Slight Chance Slight Chance -- -- -- -- -- -- -- -- -- -- Slight Chance Chance Chance Slight Chance -- Slight Chance Chance
WIND CHILL -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
SPRAY COND
DRY COND
LIVESTOCK HEATSTRESS 75.56 73.45 72.16 70.84 70.84 71.06 69.32 69.57 69.38 69.38 69.38 69.38 71.20 72.66 74.80 76.00 77.21 78.08 79.09 76.97 72.41 71.06 69.51 71.27 77.46 79.09 79.27 77.14 66.89 64.35 74.53 73.44 63.94 64.05 75.68 75.14 66.73 67.04 78.80 76.36 70.84 69.20 75.87 72.41

Click on individual weather variable above in left-hand column (ie., TEMP, RH, QPF 12HR) to view state forecast maps






NWS 48 Hr. Forecast Maps,

Regional Hourly Observations For JEFFERSON County, Kentucky
Issued at 1200 AM EDT THU JUN 04 2020
NORTH CENTRAL KENTUCKY
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
LOUISVILLE/SDF CLOUDY    80  64  58 S6        29.85F                  
LOUISVILLE/LOU MOCLDY    75  63  66 S6        29.85F                  
FORT KNOX      MOCLDY    69  66  91 CALM      29.88S                  


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.


Fire Weather Forecast For JEFFERSON County, KY
Provided by the National Weather Service:

Issued at: Thu Jun 4 00:05:01 EDT 2020

342 AM EDT Wed Jun 3 2020

                      Today        Tonight      Thu          

CLOUD COVER           Mclear       Pcldy        Pcldy        
PRECIP TYPE           None         Tstms        Tstms        
CHANCE PRECIP (%)     0            30           50           
TEMP (24H TREND)      90 (+3)      68 (+3)      85           
RH % (24H TREND)      44 (+8)      94 (+16)     58           
20FTWND-VAL/AM(MPH)   SW  7                     SW  5        
20FTWND-RDG/PM(MPH)   SW 10        SW  5        SW  5        
PRECIP AMOUNT         0.00         0.05         0.11         
MIXING HGT(FT-AGL/MSL)5624                      6188         
TRANSPORT WND (MPH)   W 21                      SW 10        
VENT RATE (KT-FT)     102340                    49550        
DISPERSION            Excellent                 Fair         
DSI                   SLGT UNSTBL  SLGT UNSTBL  SLGT UNSTBL  
LAL                   1            3            3            
HAINES INDEX          4            3            3            
ADI EARLY             50 GEN GOOD  11 POOR      24 FAIR      
ADI LATE              65 GOOD      5 VERY POOR  29 FAIR      
MAX LVORI EARLY       4            4            5            
MAX LVORI LATE        1            6            3            

REMARKS...ADI IS ATMOSPHERIC DISPERSION INDEX BY LAVDAS.        
LVORI IS LOW VISIBILITY OCCURRENCE RISK INDEX.

.FRIDAY...Mostly cloudy. A 50 percent chance of showers and
thunderstorms. Lows in the upper 60s. Highs in the upper 80s.
Light winds. 
.SATURDAY...Partly cloudy. A 50 percent chance of showers and
thunderstorms. Lows in the upper 60s. Highs in the upper 80s.
Light winds. 
.SUNDAY...Mostly clear. Lows in the mid 60s. Highs in the mid
80s. Northeast winds up to 5 mph. 
.MONDAY...Partly cloudy. Lows in the lower 60s. Highs in the mid
80s. East winds up to 10 mph. 
.TUESDAY...Partly cloudy. A 40 percent chance of showers and
thunderstorms. Lows in the mid 60s. Highs in the upper 80s. South
winds up to 10 mph. 

SPC's Fire Weather Web Tool (Excellent!), SPC's Fire Weather Outlooks, NWS Fire Weather WEB, Fire Danger Class Map,
Keetch-Byram Drought Index, ROMAN Web, Haines Index ,
WFAS's 10-hr Dead Fuel Moist., WFAS's 100-hr Dead Fuel Moist., Probablity of Ignition, Visual blackness Map, Palmer Drought Index, HPC's Rainfall Forecast Maps


Hazardous Weather Outlook For JEFFERSON County, Kentucky
930 PM EDT Wed Jun 3 2020 /830 PM CDT Wed Jun 3 2020/

 DAY ONE  Tonight.

Isolated thunderstorms will be possible late tonight in southern
Indiana, mainly after 2-3 AM EDT. An isolated storm may produce 
heavy rainfall, gusty winds, and lightning. 

 DAYS TWO THROUGH SEVEN  Thursday through Tuesday.

Scattered strong thunderstorms are possible Thursday afternoon and
evening, mainly after 2 PM EDT. Strong to marginally severe storms
will be capable of torrential rainfall, locally damaging winds, small
hail, and frequent lightning. 

Scattered storms will be possible Friday through Saturday, with the 
best chances being in the afternoon and evening hours. Gusty winds, 
heavy downpours, and lightning will be the main threats in the 
strongest storms. 

 SPOTTER INFORMATION STATEMENT  

Spotters are encouraged to pass along any reports of severe weather
they encounter.

Latest JEFFERSON County, Kentucky Watches, Warnings and Advisories.
Additional Drought Info.: UKAWC Drought Page, Kentucky Drought Watch


7-Day Forecast For JEFFERSON County, KY

OVERNIGHT
Partly cloudy. A 20 percent chance of showers and thunderstorms after midnight. Lows around 70. Southwest winds 5 to 10 mph.

THURSDAY
Partly cloudy with a 50 percent chance of showers and thunderstorms. Highs in the upper 80s. Southwest winds 5 to 10 mph.

THURSDAY NIGHT
Partly cloudy with a 50 percent chance of showers and thunderstorms. Lows in the lower 70s. South winds up to 5 mph.

FRIDAY
Partly cloudy with chance of showers and slight chance of thunderstorms. Highs in the upper 80s. Southwest winds up to 5 mph. Chance of precipitation 50 percent.

FRIDAY NIGHT
Partly cloudy with a 50 percent chance of showers. Lows around 70. Southwest winds up to 5 mph.

SATURDAY
Partly cloudy with chance of showers and slight chance of thunderstorms. Highs around 90. Chance of precipitation 40 percent.

SATURDAY NIGHT
Mostly clear. Lows in the mid 60s.

SUNDAY
Mostly sunny. Highs in the mid 80s.

SUNDAY NIGHT
Partly cloudy. Lows in the lower 60s.

MONDAY
Partly cloudy. Highs in the upper 80s.

MONDAY NIGHT
Partly cloudy. Lows in the upper 60s.

TUESDAY
Partly cloudy with a 30 percent chance of showers and thunderstorms. Highs in the upper 80s.

TUESDAY NIGHT
Partly cloudy with a 40 percent chance of showers and thunderstorms. Lows around 70.

WEDNESDAY
Partly cloudy with chance of showers and slight chance of thunderstorms. Highs in the mid 80s. Chance of precipitation 50 percent.

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