Area Forecast Discussion
Issued by NWS Dodge City, KS

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FXUS63 KDDC 271941
AFDDDC

AREA FORECAST DISCUSSION
National Weather Service Dodge City KS
241 PM CDT THU AUG 27 2015

...Updated long term discussion...

.SHORT TERM...(THIS EVENING THROUGH Friday)
ISSUED AT 117 PM CDT THU AUG 27 2015

Models remain in good agreement with an upper level trough
crossing the Central High Plains overnight as a surface
boundary/weak cold front crosses southwestern Kansas. Water vapor
loop earlier this morning indicated an upper level disturbance,
located over southern Colorado at 12z Thursday. Dprog/dt along
with the RAP and NAM suggesting that this disturbance will precede
the main upper trough and will be crossing southwest Kansas
between 18z Thursday and 00z Friday. Based on the timing of the
southern Colorado upper wave along with 700mb moisture, 700mb
frontogenesis, and afternoon mid level instability ahead of this
wave late day will be leaning towards the HRRR,RAP,ARW, and NMM
with the better chances for scattered thunderstorms developing
along and east of a Dighton to Hugoton line. the main hazards from
these storms still appear to be hail quarter size and smaller
along with wind gusts of near 60 mph based on the latest RAP 0-6km
shear and CAPE values late today and early this evening. Periods
of moderate to heavy rainfall will also be possible, especially
east of highway 283. These thunderstorms are expected to move east
overnight as another area of scattered thunderstorms develop
further west near the weak cold front/surface boundary as it and
the main upper trough crosses western Kansas between 03z and 12z
Friday. Severe weather is not anticipated with these storms,
however moderate rainfall and lightning still will be likely.

A few lingering thunderstorms will be possible across south
central Kansas early Friday morning, however as the upper level
trough moves east towards the mid Mississippi valley these storms
will quickly end and skies will begin to clear from west to east.
As the weak cold front continues to move south across Oklahoma
during the day the 900mb to 850mb temperatures will cool. 850mb
mix down temperatures at 00z Saturday continue to supports highs
mainly in the 85 to 90 degree range.

.LONG TERM...(Friday NIGHT THROUGH Thursday)
ISSUED AT 240 PM CDT THU AUG 27 2015

High pressure at the surface will build across western Kansas
Friday night so winds will decrease to less than 10 knots after
sunset. Given these winds and clear/mostly clear conditions will
trend towards undercutting guidance for lows. Will favor
temperatures falling back into the mainly the upper 50s to lower
60s.

From Saturday through the beginning of next week an upper level
ridge will build and shift eastward into the Central and Northern
Plains. This trend continues to support the previous forecast with
a gradual warming trend through early next week. Highs will be
rebounding from the upper 80s to around 90 on Saturday to at least
the low to mid 90s on Monday and Tuesday.

Towards mid week a southwesterly flow will develop across the
Central High Plains. The GFS and ECMWF also suggest some tropical
moisture will try to return to Colorado and portions of western
Kansas. This may limit how warm temperatures will get around mid
week. There will also be a slightly better chance for afternoon
and evening thunderstorms along a surface boundary which is
expected to be located near the Colorado border should any subtle
upper wave be embedded in the southwesterly flow.

&&

.AVIATION...(FOR THE 18Z TAFS THROUGH 18Z Friday AFTERNOON)
ISSUED AT 1209 PM CDT THU AUG 27 2015

Clouds will thicken and lower this afternoon as a Colorado upper
level trough moves east towards western Kansas. At this time based
on the NAM BUFR along with the RAP and NMM the VFR ceilings by
late day/early evening will lower to around 3500 ft AGL. In
addition to the lowering ceilings there will also be a chance for
thunderstorms ahead of the upper level trough late today and early
tonight. DDC and HYS will have the better opportunity for
convection for thunderstorms between 21z Thursday and 03z Friday.
GCK also has a chance but it appears to be prior to 00z Friday,
and the probability is less than 50 percent. As this upper level
trough passes the chance for storms will end and skies will begin
to slowly clear. Gusty southwest winds will continue until a cold
front crosses southwest Kansas between 03z and 09z Friday. As this
cold front passes the winds will shift to the north at 10 to 15
knots.


&&

.PRELIMINARY POINT TEMPS/POPS...
DDC  66  88  60  89 /  50  10   0   0
GCK  64  88  59  89 /  40  10   0   0
EHA  64  88  59  89 /  30  10  10   0
LBL  66  89  60  90 /  50  10   0   0
HYS  65  87  59  89 /  60  10   0   0
P28  70  91  63  90 /  30  20  10   0

&&

.DDC Watches/Warnings/Advisories...
NONE.
&&

$$

SHORT TERM...Burgert
LONG TERM...Burgert
AVIATION...Burgert


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