Area Forecast Discussion
Issued by NWS Dallas/Fort Worth, TX
FXUS64 KFWD 082037
Area Forecast Discussion
National Weather Service Fort Worth TX
237 PM CST Thu Dec 8 2016
Strong surface high pressure, on the order of 1044 mb, will
settle into the Central and Southern Plains tonight behind a
departing shortwave trough. This will result in clearing skies,
drier air and decreasing wind speeds, all of which will promote
efficient radiational cooling. Overnight lows will range from
about 19 in the northwest to the middle 20s across the Metroplex
and the southern zones. The only thing that could potentially keep
temperatures from reaching these values is if the mid cloud deck
is slower in scattering out.
Friday will be a much warmer day even though the morning will
start out very cold. We expect afternoon highs to warm into the
40s under a mostly sunny sky and a light wind.
Progressive zonal flow will prevail through the weekend which will
result in the development of a surface lee trough across the High
Plains and the return of Gulf moisture. The low level warm air
advection pattern will bring near normal temperatures back to the
region with lows in the 40S and highs in the 50s and 60s Saturday
and Sunday. Some warm air advection showers will be possible
Saturday night ahead of a shortwave. The shortwave will move
across North and Central Texas on Sunday and bring a slightly
better chance of showers, especially east of the Interstate 35
corridor where low level moisture will be most abundant.
Instability should be insufficient for any thunder.
The passage of the shortwave trough axis Sunday night will allow
a weak cold front to move into the region. The air behind the
front will be a bit cooler and drier but nothing like the arctic
intrusion that we are currently experiencing.
The upper air pattern will become more amplified next week with a
long wave trough progged to develop across the northern half of
the CONUS with another arctic front expected to infiltrate the
Plains. There are some differences among the extended models with
regards to how deep the trough will become, when the cold front
will arrive in North Texas and if any precipitation will accompany
it. Therefore, we will keep the forecast dry Monday through
Thursday with temperatures near seasonal normals Monday and
Tuesday and below normal Wednesday and Thursday.
/ISSUED 1145 AM CST Thu Dec 8 2016/
VFR mid-level ceilings linger across the region in the wake of
last night`s cold frontal passage. The band of light precipitation
that can be seen on radar is rooted within the FL080-120 layer
and is evaporating as it falls into the drier near-surface air,
so no further precipitation is expected at area TAF sites today.
The location of the breeziest north winds is shifting out of the
area to the south along the strongest surface pressure gradient,
and have slightly decreased the wind speeds at DFW airports for
the rest of the day. Gusty winds around 25 kts will continue at
Waco, however, until late this afternoon. Winds will decrease to
12 kts or less this evening.
Scattered mid-level clouds or occasional ceilings may linger
overnight and into Friday morning but VFR conditions will
continue. Winds will remain light while veering to the east by
midday Friday and eventually back to the southeast by Friday
.PRELIMINARY POINT TEMPS/POPS...
Dallas-Ft. Worth 24 43 31 51 46 / 0 0 0 5 20
Waco 25 45 31 50 47 / 5 0 0 10 20
Paris 21 42 28 48 42 / 0 0 0 10 40
Denton 20 42 28 50 44 / 0 0 0 5 20
McKinney 22 42 28 49 44 / 0 0 0 5 30
Dallas 25 44 32 52 47 / 0 0 0 5 30
Terrell 24 44 30 50 46 / 5 0 0 5 40
Corsicana 25 45 32 51 47 / 5 0 0 10 40
Temple 25 44 32 51 48 / 5 0 0 10 30
Mineral Wells 20 43 28 54 46 / 5 0 0 5 10