Area forecast discussion...updated 
National Weather Service Dodge City Kansas 
628 PM CDT Wed Apr 23 2014 

..updated for aviation... 

Short term...(this evening through thursday) 
issued at 142 PM CDT Wednesday Apr 23 2014 

Rap, hrrr, and NAM all suggesting dryline will be located near 
Garden City and Liberal between 21z Wednesday and 00z Thursday. 
Convective initiation along this boundary however somewhat more 
uncertain given the warm 700mb temperatures and cloud 
cover/precipitation currently over portions of southwest Kansas. 
At this time based on the arw,nmm, and hrrr still suggests there 
will be some widely scattered convection developing late day/early 
this evening. Will therefore follow the general trend of the non 
hydrostatic models for for late today/early tonight but keep 
precipitation chances more widely scattered. Mid level instability 
and shear continues to support that if storms do develop they will 
be capable of becoming severe. Main hazard early tonight still 
appears to be hail and strong winds given shear, mid level 
instability, high cloud bases, downdraft CAPES, and model 
soundings at 00z Thursday. 

A cold front crossing northwest Kansas earlier this afternoon is 
forecast to cross southwest Kansas between 00z and 09z Thursday. 
Convection along this cold front is expected to develop late day 
and increase in areal coverage early tonight as an upper level 
trough, which was located near The Four Corners region as 12z 
Thursday, moves east across the Central High plains. This cold 
front will provide the better opportunity for precipitation, 
especially along and east of a Dighton to Liberal line based on 
where the better low level moisture is forecast to be early tonight 
by the NAM. Precipitation chances will begin to taper off from 
northwest to southeast, mainly after midnight as this cold front 
surges south. 

Behind this cold front very windy conditions are expected to 
develop given the pressure tendencies and 925 to 850mb winds. Wind 
speeds of 30 to 35 mph will be likely for several hours behind 
this front, especially west of Highway 283 between 03z and 09z. 
After 09z Thursday the winds will begin to decrease and are 
expected to continue to decrease during the day on Thursday as a 
surface high/ridge axis crosses western Kansas. NAM and GFS 850mb 
mixdown temperatures and guidance was with 2-4 degrees of each 
other for highs on Thursday so given this and the expected 
sunshine Thursday afternoon will stay close to what they suggest. 

Long term...(thursday night through wednesday) 
issued at 255 PM CDT Wednesday Apr 23 2014 

Medium range models indicate weak upper level ridging transitioning 
eastward across the western High Plains Friday and into the Central 
Plains Saturday. Meanwhile, a strong upper level trough of low 
pressure will begin to push ashore into Southern California Saturday 
setting up a southwest flow across the western High Plains by 
Saturday afternoon. As a lack of significant low/mid level moisture 
prevails during this time frame, dry conditions will persist through 
Saturday afternoon. The potential for thunderstorms returns Saturday 
evening as the upper level trough begins to lift northeast out of 
the Desert Southwest into the western High Plains. As the shortwave 
approaches, a prevailing low level southeasterly flow will continue 
to draw moisture northward into Kansas ahead of a sharpening dryline. 
Although where the dryline sets up is uncertain this far out, the 
likelihood for thunderstorm development is good ahead of it as upper 
level dynamic support becomes more favorable. Severe weather is 
possible late Saturday into early Sunday morning. Precip potential 
shifts north and east Sunday as the upper level trough lifts 
northeast across the western High Plains increasing the potential 
for dryslotting across southwest Kansas. 

Temperatures will be above normal Friday as weak upper level ridging 
moves eastward out of The Rockies across the western High Plains. A 
south to southeasterly flow will return to western Kansas as Lee 
side troughing redevelops across eastern Colorado. This will draw 
warmer air north into the area with 850 mb temperatures ranging from 
around 20c across central Kansas to near 25c in far southwest 
Kansas. Look for highs well up into the 80s(f) Friday afternoon. 
The warming trend continues into Saturday as enhanced warm air 
advection raises 850 mb temperatures into the mid to upper 20s(c) 
across southwest Kansas. Mid to upper 80s(f) are likely Saturday 
afternoon with the lower 90s(f) possible behind a dryline across 
extreme southwest Kansas. Much cooler temperatures will arrive 
early next week as a cold front sweeps through western Kansas. 


Aviation...(for the 00z tafs through 00z Thursday evening) 
issued at 623 PM CDT Wednesday Apr 23 2014 

Scattered thunderstorms with small hail and winds to 40-50kt will 
be mainly around the Dodge City area through 01-02z. South winds of 
25-35kt will shift to the northwest with a cold front around 
03-04z at 25-35kt. A few more thunderstorms are expected with the 
cold front. 


Preliminary point temps/pops... 
ddc 46 72 45 84 / 60 0 0 0 
gck 44 71 44 84 / 40 10 0 0 
eha 44 73 45 85 / 10 0 0 0 
lbl 45 75 45 86 / 30 0 0 0 
hys 46 72 43 81 / 80 10 0 0 
p28 53 75 46 85 / 60 10 0 0 


Ddc watches/warnings/advisories... 
Wind Advisory until 8 PM CDT this evening for ksz030-031-045-046- 

Wind Advisory until 2 am CDT /1 am MDT/ Thursday for ksz061-062- 

Wind Advisory until 2 am CDT Thursday for ksz043-044-063-076-086. 

Red flag warning until 8 PM CDT this evening for ksz074-075-084- 



Short term...burgert 
long term...jjohnson 

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