[MCD] SWOMCD

[MCD at goshenarc.org]

ACUS11 KWNS 260038
SWOMCD
SPC MCD 260037 
NEZ000-KSZ000-COZ000-260200-

MESOSCALE DISCUSSION 2079
NWS STORM PREDICTION CENTER NORMAN OK
0737 PM CDT THU AUG 25 2005

AREAS AFFECTED...ERN CO/SWRN NEB AND NWRN KS

CONCERNING...SEVERE THUNDERSTORM WATCH 744...

VALID 260037Z - 260200Z

THE THREAT FOR DAMAGING WINDS APPEARS TO BE INCREASING ACROSS ERN
PORTIONS OF WW 744 AREA.  AN ADDITIONAL WW WILL LIKELY BECOME
NECESSARY PRIOR TO 02Z.

AS OF 0020Z...REGIONAL RADAR IMAGERY SHOWED A BROKEN LINE OF TSTMS
FROM KEITH COUNTY NEB SWWD TO LINCOLN COUNTY CO MOVING GENERALLY EWD
AT 20-25 KTS.  HOWEVER...CNTRL/SRN PORTION OF LINE OVER
WASHINGTON...YUMA AND KIT CARSON COUNTIES CO HAS RECENTLY
ACCELERATED SEWD AT AROUND 30 KTS.  LATEST SURFACE OBSERVATIONS FROM
SNY...AKO AND LIC SHOW TEMPERATURES IN THE MID/UPPER
60S...INDICATIVE OF A RELATIVELY STRONG COLD POOL.  IN
CONTRAST...GLD SURFACE OBSERVATION SHOWS TEMPERATURES STILL IN THE
LOWER 90S AND A 35 DEGREE TEMPERATURE/DEWPOINT SPREAD. GIVEN THIS
TYPE OF DOWNSTREAM ENVIRONMENT...EVAPORATIVE COOLING/DOWNDRAFT
POTENTIAL IN SUB CLOUD LAYER SHOULD MAINTAIN CONVECTIVE LINE
EWD/SEWD VIA SYSTEM PROPAGATION.

DESPITE RATHER WEAK LOW/MID-LEVEL SHEAR...MODERATE INSTABILITY IN
PLACE ACROSS INFLOW AIR MASS COUPLED WITH ORGANIZING COLD POOL 
SUGGEST THAT AN ISOLATED HAIL AND DAMAGING WIND THREAT WILL DEVELOP
E OF WW 744 WITHIN THE HOUR.

..MEAD.. 08/26/2005

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...GID...LBF...GLD...PUB...BOU...

38900347 39800318 40980263 41620187 41690093 41379991
40709967 39900001 39160050 38780096 38500161 38450261 

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