(EXTRACTED FROM FXUS63 KLOT 150200)
For the 00Z TAFs...
631 PM...Forecast concerns include...
Chance of thunderstorms Saturday afternoon.
Wind directions Saturday afternoon/evening.
Patchy fog early Saturday morning.
Current thunderstorm activity across southern lower MI/northwest
OH and northeast IN is expected to diminish this evening and
remain east of the terminals. A cold front currently across the
upper midwest will move across the area Saturday afternoon and
there will be a chance of thunderstorms as this front moves across
the Chicago area terminals. While there remains some uncertainty
for coverage...confidence is increasing for at least some
thunderstorms and they may develop over or near the terminals and
opted to change the current prob to tempo. Timing looks on track
but may need to be adjusted a little earlier as trends emerge. Any
storms that form will likely produce outflows leading to gusty/
erratic winds. The chance for storms should be ending by early
East/northeast winds this evening will become light and variable
or light westerly overnight. West/northwest winds will continue
Saturday morning...possibly becoming more northwest at times. A
lake breeze is expected to move inland and likely through ord/mdw
shifting winds to the east/northeast. This lake breeze is
dependent on thunderstorm development/timing...which if they occur
sooner may limit the lake breeze potential. Winds appear to favor
a north/northeast direction behind the front into Saturday evening
but confidence is fairly low as winds may end up more north/
northwest Saturday evening.
Some patchy/light fog is expected generally south of a pnt/gyy
line tonight with perhaps more widespread fog toward central IN.
Confidence is low for how close this fog may get to the terminals
but opted to include tempo for mvfr vis at gyy. cms
02:01 UTC |
07:01 PM Pacific |
08:01 PM Mountain |
09:01 PM Central |
10:01 PM Eastern