Heavy Rain Continues in Florida; Cold Front Brings Thunderstorms and Showers to Central US

Scattered areas of heavy rain continue to produce isolated flash flooding across the Florida peninsula. Anomalous moisture will combine with a cold front and will bring heavy rain and scattered flash flooding across the Mid-South, Ohio and Tennessee Valleys today and Tuesday. Above average temperatures will continue to be found ahead of the cold front from the Midwest to the Northeast. Read More >

A La Niña Watch has been issued by the Climate Prediction Center. There is a 50-55% chance of La Niña conditions developing this fall and continuing through the winter.

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Below is a map of the typical effect La Niña has on the November-March temperatures in the United States. The yellow and orange colors indicate areas where temperatures often average warmer than normal during a La Niña winter:

La Nina temperature anomalies

Here is a map showing the typical effect La Niña has on November-March precipitation. The blue and green colors in the Ohio Valley indicate a tendency toward wetter than normal conditions:

La Nina precipitation anomalies

It is important to remember:

The influence of La Niña on the Ohio Valley is not very strong
Every La Niña is different, and not all La Niña winters behave the same way
The strength of the La Niña may make a difference in how it affects our weather both in terms of precipitation and temperature (so far, this La Niña is expected to be weak)
There are myriad factors that work together to result in the weather we experience -- La Niña is just one of them

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Heavy Rain Continues in Florida; Cold Front Brings Thunderstorms and Showers to Central US

La Nina Watch