Severe Thunderstorm Warning 121, NWS Denver/Boulder, CO

NORTHEAST AND NORTH CENTRAL COLORADO AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE DENVER COLORADO
230 PM MDT MON SEP 4 2000

PTRN HAS UNDERGONE LTL CHANGE IN PAST 24 HRS AND MDLS DO NOT SHOW
ANY BIG CHNG FOR NEXT 5 DAYS EXCEPT THAT MRF ADVERTISES THAT HIGH
PRESSURE OVER TX WILL MOVE INTO SRN AZ AND NM AND FLATTEN ON SAT
AS SHT WV MOVES ACRS CANADA/NRN ROCKIES AND PLAINS.  THIS MAY BE
OVERDONE BUT IMPACT ON THIS AREA WILL BE MINIMAL FOR NOW.  SWLY
FLOW TO CONT AT LEAST THRU FRI IF NOT LONGER SO WILL BE VULNERABLE
TO SUBTRPCL MSTR MOVING NEWD FROM DSTRBNCS SW AND S OF BAJA.  MOST
MSTR WILL BE MID AND HI LVL IF THIS OCCURS BUT WILL BE LACKING IN
LOWER ATMOS.  DWNSLP FLOW TO CONT HOLDING FORTH OVER PLAINS BUT WK
CD FNT PROGD BY ETA TO MOVE THRU PLAINS CWA AROUND MIDDAY WED.  AVN
SHOWS SAME SCENARIO BUT TO A LESSER DEGREE.  NGM DOESNT GO FAR ENUF
INTO FUTURE TO SHOW FROPA BUT AT 48 HRS IT SHOWS FNT IN WY AND APCHG
NERN CO.  IF FRONT HOLDS TOGETHER SHUD BE ABLE TO SHIFT LOW LVL FLOW
TO NLY AND PERHAPS EVEN ELY WED NGT/THURS.  NONE OF THE MODELS SHOW
ENUF INCRS IN MSTR TO GET TOO EXCITED WITH POPS BUT WILL LEAVE CHC
IN FOR THURS AND FRI SNC MAY ALSO SEE INFLUX OF SUBTROPICAL MSTR FM
DSTRBNCS IN PAC S AND SW OF BAJA.  NEW MRF BACKS OFF ON LOW LVL MSTR
COMPARED TO PREV RUNS BUT WILL NOT RISK YO-YO BY CHANGING EXTENDED
YET.  ON OTHER HAND APPEARS CUD SEE RETURN OF LEE TROF AND DWNSLP
FLOW BY SAT SO WILL GO DRY AND LTL WARMER FOR SAT.  FOR SHORTER
TERM NOT ENUF MSTR/CLDS TO GO MORE THAN ISOLD POPS IN MTNS AND HIER
FTHLS FOR TNGT AND TUES AFTN/EVE WITH MSTLY CLEAR SKIES LATE TNGT
AND TUES MRNG.  WILL TRIM MAX TEMPS A FEW DEGS FOR WED DUE EXPECTED
NLY WINDS BHND FROPA/SURGE WED AFTN AND PSBLTY OF MORE CLOUD COVER.
BOODA

DEN...NONE.

COZ030-032>050-042200-

SIGNIFICANT WEATHER OUTLOOK FOR NORTHEAST AND NORTH CENTRAL COLORADO
NATIONAL WEATHER SERVICE DENVER CO
120 PM MDT SUN SEP 3 2000

THIS OUTLOOK PERTAINS TO THE FOLLOWING COLORADO COUNTIES

ADAMS     ARAPAHOE     BOULDER   CLEAR CREEK   DENVER       DOUGLAS
ELBERT    GILPIN       GRAND     JACKSON       JEFFERSON    LARIMER
LINCOLN   LOGAN        MORGAN    PARK          PHILLIPS     SEDGWICK
SUMMIT    WASHINGTON   WELD

SYNOPSIS: HIGH PRESSURE HAS BUILT SLIGHTLY NORTHWARD ACROSS THE
REGION TODAY WITH MOST OF THE MOISTURE ACROSS NORTHERN SECTIONS OF
COLORADO. THERE WILL BE ENOUGH INSTABILITY ALONG WITH AMPLE HEATING
TO GENERATE ISOLATED THUNDERSTORMS LATER THIS AFTERNOON AND EVENING.
THE BEST CHANCE FOR A STORM WILL BE ACROSS THE HIGHER ELEVATIONS AND
ACROSS THE COLORADO BORDER AREAS WITH WYOMING.

LIKE YESTERDAY...THE LOW LEVEL REMAINS RATHER DRY...SO GUSTY WINDS
TO 45 MPH AND ONLY BRIEF LIGHT RAIN WILL ACCOMPANY STORMS.

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY.

SWE