Historical weather day for Louisville

Happy Fourth of July and Happy Birthday America

There is one for sure weather record that will be set....
another one that may be set.....

Last year, the high temperature on the Fourth of July was 102 degrees. With today expected to stay in the lower or mid 70's, that will around 30 degrees cooler than last year. Such a big drop from one to the next has never happened on Independence Day in Louisville.
By the way, that 102 was a record high.

Our record for the lowest maximum temperature for July 4 is 73 degrees. That was set 4 years ago in 2009 during that very cool summer. Every summer since then (except this year) has seen temperatures average well above normal.
This record is in jeopardy today if the rain remains steady. If there is a break in the rain for a few hours, then the temp will rise above 73, otherwise, if the rain continues.... then we should stay below 73 degrees.
In the last 25 years in Louisville, there has only been one time (2009) with a July 4 high in the 70's. This is a rare event.

We probably and hopefully will not set the rain record for July 4. That was 5.04 inches.

WPC rain forecast today

The WPC has shifted the heavy rain axis for today to eastern KY.  The 3rd level of blue is one inch.
Louisville is in the .50-.75 inch range.

The lightest purple is 1.50".

Flash Flood WATCH

However, the NWS in Louisville has just expanded the Flash Flood WATCH furth to the west to include Hardinsburg, KY.. Corydon, New Albany and up to Madison.

This morning's rain area has set up further west.

Although the overnight model runs keep the heaviest rain more to the east of Louisville.....
The Rapid Refresh model this morning has heavy rain moving into Louisville either late this afternoon or early evening. More updates later today.






From the NWS in Louisville......

THE NATIONAL WEATHER SERVICE IN LOUISVILLE HAS EXPANDED THE

* FLASH FLOOD WATCH TO INCLUDE PORTIONS OF INDIANA AND
  KENTUCKY...INCLUDING THE FOLLOWING AREAS...IN INDIANA...CLARK
  IN...FLOYD IN...HARRISON IN AND JEFFERSON IN. IN KENTUCKY...
  BRECKINRIDGE KY...BUTLER KY...LOGAN KY...MEADE KY AND OHIO KY.

* THROUGH FRIDAY MORNING

* SHOWERS AND ISOLATED THUNDERSTORMS WILL CONTINUE ACROSS THE
  REGION TODAY. PRECIPITATION IS LIKELY TO CONTINUE THROUGH FRIDAY
  MORNING. DUE TO THE HIGH AMOUNT OF ATMOSPHERIC MOISTURE...THESE
  SHOWERS AND STORMS WILL HAVE THE POTENTIAL TO PRODUCE TORRENTIAL
  RAINFALL THAT MAY LEAD TO FLASH FLOODING ON SMALL CREEKS AND
  STREAMS AND IN POOR DRAINING URBAN AREAS. IN ADDITION...RISES ON
  LARGER AREA RIVERS WILL BE POSSIBLE AS WE HEAD INTO THE HOLIDAY
  WEEKEND.

* THOSE LIVING ALONG CREEKS AND STREAMS SHOULD BE ALERT FOR THE
  POTENTIAL FOR FLASH FLOODING. IF YOU PLAN ON HIKING OR CAMPING
  DURING THIS HOLIDAY WEEKEND...DO NOT MAKE YOUR CAMPSITE NEAR A
  CREEK OR STREAM...NO MATTER HOW SMALL IT IS. WATER LEVELS MAY
  RISE DRAMATICALLY ON AREA CREEKS AND STREAMS AS HEAVY RAINFALL
  MOVES THROUGH THE REGION.