Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
359 PM EDT Tue Oct 06 2026

Valid 00Z Wed Oct 07 2026 - 00Z Fri Oct 09 2026

...An October heatwave will remain across central and southern California
through mid-week...

...Autumnal chill lingers for the Great Lakes and Northeast behind a cold
front...

...Heavy rainfall and isolated flood threat persists in Florida...

A dangerous October heatwave continues for portions of California and the
Desert Southwest into mid-week. High temperatures remain 15-20 degrees
above average with highs reaching into the 90s to low 100s and overnight
lows in the mid- to upper 70s providing little relief from the heat
overnight. This heat has led to Heat Levels of Major to Extreme (Levels 3
and 4 of 4) particularly along coastal California indicating a level of
heat dangerous to anyone without adequate cooling or hydration.
Temperatures are expected to gradually cool for coastal California
Thursday and then interior areas Friday-Saturday so some relief from the
heat is in sight. While not dangerously hot, conditions across the western
to central U.S. remain well above average for October with widespread
highs in the 70s and 80s. Some daily record-tying/breaking highs will be
possible. On the other hand, conditions remain cooler and below average
along the East Coast and particularly for the Northeast through today
(Tuesday) with highs mainly in the 50s and 60s. Frost and Freeze related
Advisories and Warnings are in place for much of New England as well as
portions of the northern Mid-Atlantic Wednesday morning as temperatures
are forecast to fall into the 30s. However, temperatures will moderate
quite a bit over the next couple of days with much warmer highs into the
70s expected for most locations by Thursday. 

Gulf moisture pooling along a quasi-stationary boundary through Florida
will continue to lead to widespread thunderstorms across most of the
Florida Peninsula and parts of the Panhandle and southeastern Georgia
coast the next few days. Locally heavy downpours may lead to a few inches
of rain each day with some isolated flooding/ponding possible particularly
in urban areas. Some thunderstorms and locally heavy downpours will be
possible for far South Texas near the western end of the boundary as well.
Otherwise, the rest of the country will be mostly dry through mid-week
with only some widely scattered showers expected over the central
Rockies/Four Corners region and with a frontal system moving through the
Upper Great Lakes into the interior Northeast late Wednesday into
Thursday. Newly formed T.D. Nine is forecast by the National Hurricane
Center to bring impacts to the Gulf Coast/Southeast later this week and
into the weekend just beyond the current forecast period, please refer to
the latest forecasts from the National Hurricane Center regarding this
system at https://www.nhc.noaa.gov.


Putnam


Graphics available at
https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php