WPC updates rain forecast

Updated late afternoon..... the WPC has updated the rain forecast and for the period tonight into Saturday PM, the total is 3 inches for Louisville and 2.5 for southern Indiana.

WPC 3 day rain forecast

The bullseye is around Nashville with 5 inches.



Here is the NWS forecast for the time period beyond the current map.......|
SATURDAY NIGHT...PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS. LOWS AROUND 70. CHANCE OF PRECIPITATION 50 PERCENT. .

SUNDAY...PARTLY CLOUDY WITH A 50 PERCENT CHANCE OF SHOWERS AND THUNDERSTORMS. HIGHS IN THE MID 80S. .

SUNDAY NIGHT...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS IN THE LOWER 70S. .

MONDAY...PARTLY CLOUDY WITH A 40 PERCENT CHANCE OF SHOWERS AND THUNDERSTORMS. HIGHS IN THE MID 80S. .

MONDAY NIGHT...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS IN THE LOWER 70S. .

TUESDAY...PARTLY CLOUDY WITH A 40 PERCENT CHANCE OF SHOWERS AND THUNDERSTORMS. HIGHS IN THE UPPER 80S. .

TUESDAY NIGHT...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS IN THE LOWER 70S. .

WEDNESDAY...PARTLY CLOUDY WITH A 40 PERCENT CHANCE OF SHOWERS AND THUNDERSTORMS. HIGHS IN THE UPPER 80S.

Usually in the extended outlook the NWS groups the the day and night together but they did separate in this forecast to show the higher chances for rain in the afternoon and the lower chance at night.

NWS says in their discussion..... 

For the Fourth, mostly cloudy skies along with widespread shower and
thunderstorm activity looks very likely across the region.  There is
still some still a bit of spread in the models regarding where the
axis of heaviest precipitation will develop.  The 06Z runs were
suggesting that the heaviest precipitation axis would shift more
toward the west near the I-65 corridor and then continue from there
and points westward into Thursday night.   These models had very
good agreement from the ensembles which showed at least an 80%
probability of 3 inches of rainfall through 12Z Friday.  However,
the latest deterministic and ensemble forecasts from the 12Z runs
have shift a little more to the right (east) and generally have the
heavy rainfall band setting up right along the US 127/27 corridor
through much east-central and south-central Kentucky during the day
and then shifting more toward the I-65 corridor Thursday night.