[LeArc] Forecast Discussion : MLI@ 11/29/02 3:12:04 AM

Fri, 29 Nov 2002 03:12:04 -0600

The following weather message is provided by McDonough County E.S.D.A.

FXUS63 KDVN 290923
AFDMLI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
322 AM FRI NOV 29 2002

A TROUGH MOVING INTO NORTHWEST IOWA IS ASSOCIATED WITH AN INTENSE 
LOW PRESSURE SYSTEM IN CANADA.  THE SLATER PROFILER INDICATES 50KT 
WINDS IN THE LOWEST GATES ALREADY.  THE COLD AIR ASSOCIATED WITH THE
LOW REMAINS UP IN CANADA BUT IS MAKING RAPID PROGRESS TO THE SOUTH.

MAIN FORECAST CONCERNS ARE WIND THE NEXT TWO DAYS AND THE MAGNITUDE 
OF COLD TEMPERATURES MAINLY SATURDAY AND SATURDAY NIGHT.

SHORT TERM MODELS ARE IN GENERAL AGREEMENT WITH THE MASS FIELDS 
THROUGH THE WEEKEND.  PASSAGE OF THE TROUGH TODAY WILL USHER IN 
PACIFIC AIR...SO MAX TEMPS WILL BE WARMER THAN THE PAST FEW DAYS.  
WENT ABOVE GUIDANCE VALUES.  THE TIGHT PRESSURE GRADIENT WILL MAKE 
FOR A WINDY DAY TODAY...BUT THE COMBINATION OF A TIGHT GRADIENT AND 
STRONG COLD AIR ADVECTION WILL MAKE FOR EVEN WINDIER CONDITIONS 
SATURDAY.  SPEEDS COULD APPROACH ADVISORY CRITERIA TOMORROW.

LOOKS LIKE THE COLDEST NIGHT WILL BE SATURDAY INTO SUNDAY BEFORE 
TEMPS START TO REBOUND AHEAD OF THE NEXT SYSTEM SUNDAY NIGHT INTO 
MONDAY.  CHANCE OF PRECIP LOOKS REASONABLE EARLY NEXT WEEK FOLLOWED 
BY ANOTHER ROUND OF COLDER TEMPERATURES.  WILL MAKE NO CHANGES TO 
THE EXTENDED.

.DVN...
IA...NONE.
IL...NONE.
MO...NONE.

WOLF