Area Forecast Discussion Issued by NWS Amarillo, TX
000
FXUS64 KAMA 191918
AFDAMA
Area Forecast Discussion
National Weather Service Amarillo TX
218 PM CDT Mon Jul 19 2021
.SHORT TERM...This afternoon through Tuesday night...
Below average temperatures continue through Tuesday, with highs
expected to be in the 80s. There is a chance for showers and
thunderstorms this afternoon and evening. Chances for storms are
low as they will be quite isolated if they do form today.
The H500 ridge is currently positioned over the Rockies and
Central/Northern Plains this afternoon, keeping the area under
northerly flow today. A weak area of low pressure is located over
the eastern US, which is attempting to retrograde into the
Southern Plains over the next couple of days. This will promote
northeast flow aloft. A shortwave embedded in the upper level
flow is projected to move across the Southern Plains this
afternoon and overnight. This disturbance may provide enough lift
to generate a few thunderstorms. If thunderstorms do form, they
are expected to be isolated and short lived, as warmer and drier
air in the mid levels begins to push into the area from the east.
Some small hail and gusty winds are possible with thunderstorms
today, as modest MLCAPE (1000-1500 J/KG) and shear (20-30 kts)
will be available before sunset. Severe weather is not expected.
The trough and upper level disturbance continue to push south through
Tuesday morning. A lingering shower or storm may continue in the
west and southwest through the morning, as the disturbance exits
the area. The ridge aloft begins to become positively tilted and
turns the flow aloft to a more northeasterly component tomorrow.
The warmer and drier air will also stick around and push further
west in the mid levels, which will likely prevent any
precipitation from occurring on Tuesday afternoon and evening.
Muscha/Ward
&&
.LONG TERM (Wednesday through Sunday)...
Overall, a rather quiet forecast in terms of hazardous weather. We
are precipitation-free through nearly the entire week, and its
not until Sunday we see our precipitation chances return to the
forecast.
On Wednesday, the H5 high becomes positively tilted and flow
becomes northeasterly. We stay in this pattern for several days
as the H5 high sits over the Four Corners region. Taking a look at
1000mb-500mb, the RH through the mid-levels looks dismal, but
there is some moisture aloft that could bring high clouds into the
area at least a few days. However, there will be lots of sunshine
during this stretch. High temperatures start off below normal,
albeit only ~5 degrees below normal here and there. By Friday, and
through the weekend, we are back right around normal for high
temperatures. Otherwise, not a whole lot to talk about during this
stretch until Sunday when we finally get some precipitation
chances back in the forecast, but those chances are only around
20-25 percent.
Guerrero
&&
.PRELIMINARY POINT TEMPS/POPS...
Amarillo TX 64 84 61 85 64 / 10 10 0 0 0
Beaver OK 61 87 62 90 65 / 10 0 0 0 0
Boise City OK 61 85 60 87 62 / 10 5 0 0 0
Borger TX 66 89 64 91 68 / 20 5 0 0 0
Boys Ranch TX 65 86 63 88 65 / 10 10 0 0 0
Canyon TX 64 83 60 85 63 / 10 10 0 0 0
Clarendon TX 64 83 62 85 64 / 10 5 0 0 0
Dalhart TX 60 84 59 86 61 / 10 5 0 0 0
Guymon OK 61 87 60 90 64 / 10 5 0 0 0
Hereford TX 64 84 61 86 63 / 20 20 0 0 0
Lipscomb TX 61 86 61 88 65 / 20 0 0 0 0
Pampa TX 62 85 61 86 64 / 20 5 0 0 0
Shamrock TX 62 85 62 87 64 / 20 0 0 0 0
Wellington TX 64 86 64 87 65 / 10 0 0 0 0
&&
.AMA Watches/Warnings/Advisories...
TX...None.
OK...None.
&&
$$