Scientific Forecaster Discussion

NWS Discussion
			
				

Area forecast discussion 
National Weather Service Tulsa OK 
514 am CDT Tuesday may 21 2013 


Discussion... 
corrected to reflect cancellation of Flood Watch 
for those counties northwest of Interstate 44. 


Current convective line elevated thunder from 
southwest Oklahoma to east central Oklahoma... 
rather active at 930z. Cool front from extreme 
southeast corner of Kansas southwest to low in 
West Texas. Southwest upper flow and slow cold 
frontal progression will produce a lot of rain 
and thunder for southeast Oklahoma..as well as 
west central and northwest Arkansas. Threat of 
severe storms continues today for southeast OK 
and west central Arkansas. Current Flood Watch 
will need to be monitored for the inclusion of 
Choctaw and Pushmataha counties. 


Thunder threat finally ends this evening as 500 mb 
trough axis moves east of the forecast area. 


Minimal pop retained from earlier forecast for 
moist flow working under 500 mb ridge Thursday. 


European model (ecmwf) forecast west to east frontal boundary 
across the forecast area Saturday with precipitation. 
GFS dry. Leaned with European model (ecmwf) outcome for chance 
probability of precipitation. 




&& 


Preliminary point temps/pops... 
tul 76 56 80 59 / 70 30 0 0 
fsm 77 58 81 60 / 90 80 0 0 
mlc 77 56 82 61 / 90 50 0 10 
bvo 75 54 79 55 / 40 20 10 0 
fyv 71 55 77 54 / 90 80 0 10 
byv 74 57 76 54 / 90 80 10 10 
mko 73 55 81 59 / 90 50 0 0 
Mio 73 55 77 56 / 60 40 10 10 
f10 75 56 81 60 / 90 40 0 10 
hhw 79 61 83 63 / 90 60 0 10 


&& 


Tsa watches/warnings/advisories... 
OK...Flash Flood Watch until 7 PM Tuesday for okz058-okz062-okz063- 
okz065-okz066-okz067-okz068-okz069-okz070-okz071-okz072- 
okz073-okz074-okz075-okz076. 


Arkansas...Flash Flood Watch until 7 PM Tuesday for arz001-arz002-arz010- 
arz011-arz019-arz020-arz029. 


&& 


$$ 


Short term...05 
long term....21