(EXTRACTED FROM FXUS63 KLOT 192348)
For the 00Z TAFs...
648 PM...Forecast concerns include...
Possible wind shift/outflow early Saturday morning.
Patchy fog early Saturday morning.
Wind shift/cold front late Saturday afternoon/early evening.
Chance of thunderstorms...mainly Saturday evening.
Southwest winds will remain occasionally gusty through sunset with
speeds diminishing to 10kts or less later this evening. Convection
currently over northern WI is expected to remain north of the
IL/WI state line overnight...though trends will need to be
monitored. But the further south this activity trends tonight...
the better the chance of an outflow moving across the terminals
toward daybreak Saturday morning. Confidence is low and currently
do not have any outflow/wind shift in this forecast.
Given the very moist airmass...there is a chance of fog/haze
overnight/Saturday morning and maintained mention at rfd/dpa but
confidence is low.
Southwest winds will continue...or return if there is an early
morning outflow...on Saturday with gusts likely from mid morning
into the afternoon. A wind shift/cold front is expected late in
the afternoon or early Saturday evening...shifting winds to the
northeast. Confidence on the timing of this front is low and if
the coverage of thunderstorms across WI is large enough Saturday
afternoon...this could push the outflow/wind shift through faster.
Eventually...winds are expected to turn northeast Saturday
Thunderstorm trends Saturday afternoon into Saturday night are
uncertain. The above mentioned wind shift/front may be the focus
for thunder development at the terminals. With the later wind
shift timing...went with later thunder timing. Some of the models
are actually rather dry even with the wind shift. Thus confidence
remains low for this time period. cms
00:48 UTC |
05:48 PM Pacific |
06:48 PM Mountain |
07:48 PM Central |
08:48 PM Eastern