Severe Thunderstorm Warning 52, NWS Denver/Boulder, CO

NORTHEAST AND NORTH CENTRAL COLORADO AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE DENVER COLORADO
115 PM MDT THU JUN 7 2001

SHORT TERM DISCUSSION: STILL LOOKING GOOD FOR SEVERE WEATHER
OUTBREAK OVER NERN CO THROUGH THIS EVENING. SURFACE DEWPOINTS
HOLDING IN THE MID 50S...WITH LOWER 60 DEWPOINTS ACROSS FAR NERN CO.
VISIBILE SAT PICS SHOWING BOUNDARY DRAPPED EAST OF ITR TO AKO AND UP
THROUGH FT MORGAN. LAPS SHOWING THETA-E AXIS ALINGED WITH THIS
BOUNDARY WITH CAPES UP TO 3000J/KG. STORMS GOING ALREADY OVER THE
PALMER DIVIDE WITH MORE HEATING THERE...BUT STILL SUNSHINE GOING ON
OVER THE URBAN COORIDOR TO FIRE STORMS WITH ADDITIONAL HEATING AND
OUTFLOW BOUNDARIES. WILL MENTION SEVERE IN ERN CO ZONES THIS
EVENING. EXPECT MUCH OF THE PLAINS TO HAVE RETURN OF STRATUS/FOG
LATER TNT WITH ALL THE LINGERING MSTR LEFT OVER FROM STORMS. LOOKS
ANOTHER ROUND OF STORMS FOR FRI AFTN...BUT A LITTLE LESS NUMEROUS
WITH A LITTLE DRIER AIR FROM THE WEST AND JET STREAK MOVES OFF.
SHEAR PROFILE IS SIMIALR TO TDAY SO STILL A SHOT AT SOME SEVERE
STORMS FRI AFTN AS WELL.

LONG TERM DISCUSSION:  UPPER LEVEL RIDGE BUILDS IN AND GRADUALLY
SHIFTS EAST OF STATE THRU WEEKEND PRD WHICH BRINGS IN VERY DRY AIR
IN THE MID LEVELS WITH SW FLOW. CANT SEE ANY STORMS DURING THE
WEEKEND PRD. LATEST MRF STILL SHOWING NEXT FRONT TO COME DOWN ON
TUE...WHICH IS SHOWN SOME CONSISTENCY IN LAST FEW RUNS. A RETURN TO
AFTERNOON STORMS AND COOLER WX TUE-THU LOOKS IN ORDER.  WILL SPLIT
UP EXTENDED FCST A LITTLE TO SHOW THESE CHANGES. ENTREKIN

.DEN...NONE.

COZ030>051-072000-

SIGNIFICANT WEATHER OUTLOOK FOR NORTHEAST AND NORTH CENTRAL COLORADO
NATIONAL WEATHER SERVICE DENVER CO
1015 AM MDT THU JUN 7 2001

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

...SPOTTER ACTIVATION WILL LIKELY BE REQUIRED ACROSS NORTHEAST
COLORADO...

SYNOPSIS...ABUNDANT LOW LEVEL MOISTURE HAS SPREAD ACROSS ALL OF
NORTHEAST COLORADO AND WILL REMAIN IN PLACE THROUGH THE REST OF
TODAY.  AS DAYTIME HEATING PUSHES TEMPERATURES INTO THE MID AND
UPPER 70S...THE AIRMASS WILL BECOME VERY UNSTABLE.  AS A RESULT...
SCATTERED THUNDERSTORMS WILL BE DEVELOPING LATE THIS AFTERNOON AND
THEN CONTINUE THROUGH THE EVENING.

SUFFICIENT WIND SHEAR EXISTS IN THE ATMOSPHERE FOR SEVERE
THUNDERSTORMS WITH LARGE HAIL AND DAMAGING WINDS.  ALTHOUGH THE
SURFACE WIND FLOW IS SOMEWHAT WEAK...A FEW TORNADOES WILL ALSO BE
POSSIBLE ESPECIALLY ALONG CONVERGENT BOUNDARIES.

AT THIS TIME...ONE OF THESE BOUNDARIES IS EXPECTED TO SET UP FROM
NORTHERN DOUGLAS COUNTY NORTHEASTWARD THROUGH WESTERN ARAPAHOE...
ADAMS...AND INTO MORGAN COUNTY.  THIS WILL ALSO SERVE AS A FOCUS FOR
THUNDERSTORM DEVELOPMENT.

SPOTTER ACTIVATION WILL LIKELY BE REQUIREAD OVER ALL OF THE NORTHEAST
PLAINS OF COLORADO BY 230 PM.

MOUNTAIN LOCATIONS WILL REMAIN DRY TODAY...EXCEPT FOR ISOLATED
THUNDERSTORMS IN THE FRONT RANGE FOOTHILLS.

BARJENBRUCH

COZ030>051-072200-

SIGNIFICANT WEATHER OUTLOOK FOR NORTHEAST AND NORTH CENTRAL COLORADO
NATIONAL WEATHER SERVICE DENVER CO
200 PM MDT THU JUN 7 2001

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

...SPOTTERS ALREADY ACTIVATED IN NORTHEAST COLORADO...

SYNOPSIS...SCATTERED STRONG THUNDERSTORMS HAVE DEVELOPED OVER
DOUGLAS AND WESTERN ELBERT COUNTIES EARLY THIS AFTERNOON.  THE
STORMS WILL BECOME MORE NUMEROUS THROUGH THE EVENING...AND SOME OF
THESE ARE EXPECTED TO BE SEVERE.  SUFFICIENT WIND SHEAR EXISTS IN
THE ATMOSPHERE FOR SUPERCELL THUNDERSTORMS WITH LARGE HAIL AND
DAMAGING WINDS.  ALTHOUGH THE SURFACE WIND FLOW IS SOMEWHAT WEAK...
A FEW TORNADOES WILL ALSO BE POSSIBLE ESPECIALLY ALONG CONVERGENT
BOUNDARIES.

MOUNTAIN LOCATIONS WILL REMAIN DRY TODAY...EXCEPT FOR ISOLATED
THUNDERSTORMS IN THE FRONT RANGE FOOTHILLS AND PARK COUNTY.

NOAA WEATHER RADIO IS OFF THE AIR DUE TO A COMMUNICATIONS FAILURE.
FOR THE LATEST SEVERE WEATHER INFORMATION MONITOR YOUR LOCAL NEWS
MEDIA OR THE DENVER NATIONAL WEATHER SERVICE HOME PAGE AT
WWW.CRH.NOAA.GOV/DEN.  CLICK ON THE SEVERE WEATHER PAGE LINK.

BARJENBRUCH