Severe Thunderstorm Warning 39, NWS Denver/Boulder, CO

COZ030-032>050-060>081-241200-
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
10AM MDT FRI MAY 22 1998

...A GREAT WEEKEND ON THE RIVERS...

THE ORDERLY MELTING OF THE SNOWPACK NEAR THE HEADWATERS OF STREAMS
EAST OF THE CONTINENTAL DIVIDE IN COLORADO CONTINUES. AROUND AN INCH
OF WATER A DAY IS MELTING OUT OF THE PACK BUT THIS MELT IS BEING
HANDLED QUITE WELL BY STREAMS IN THE AREA.

RIVER LEVELS MONITORED BY THE NATIONAL WEATHER SERVICE IN DENVER
REMAIN WELL BELOW BANKFULL IN ALMOST ALL LOCATIONS. IF THE CURRENT
PATTERN CONTINUES...THE PEAK RIVER FLOWS DUE TO SNOWMELT WILL HAVE
OCCURRED AT MOST LOCATIONS BY THIS TIME NEXT WEEK AND THERE WILL BE
LITTLE IF ANY SIGNIFICANT FLOODING DURING THE SNOWMELT PERIOD THIS
YEAR.

CURRENT TEMPERATURE FORECASTS INDICATE LITTLE CHANGE IN THE SNOWMELT
PATTERN OVER THE MEMORIAL DAY WEEKEND...AND RAINFALL DURING THE
PERIOD SHOULD BE SPOTTY ENOUGH AND LIGHT ENOUGH SO THAT FLOODING
IS NOT ANTICIPATED.

BOTTOM LINE...GOOD CONDITIONS THIS WEEKEND FOR RIVER ACTIVITIES ON
UNCONTROLLED STREAMS EAST OF THE CONTINENTAL DIVIDE...INCLUDING
CAMPING...RAFTING...ETC...WITH LITTLE CHANCE OF HIGH ENOUGH RIVER
LEVELS OR ENOUGH RAINFALL TO INTERFERE.

ENJOY...

TUNNELL

COZ036-039-040-221745-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
1124 AM MDT FRI MAY 22 1998

...STRONG THUNDERSTORMS PRODUCING HAIL IN JEFFERSON COUNTY...

AT 1108 AM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
THUNDERSTORM 4 MILES NORTH OF BERGEN PARK...OR ABOUT 20 MILES WEST OF
DENVER...MOVING NORTHEAST AT 20 MILES PER HOUR.  THIS STORM WAS
PRODUCING HEAVY RAINS AND HAIL.  THE JEFFERSON COUNTY SHERIFFS
DEPARTMENT REPORTED HAIL UP TO 5 INCHES DEEP ON INTERSTATE 70 NEAR
FLOYD HILL.

PERSONS IN OR NEAR ARVADA...EXTREME SOUTHWESTERN BROOMFIELD...
GOLDEN...NORTHWESTERN LAKEWOOD...CENTRAL WESTMINSTER...WESTERN WHEAT
RIDGE...BERGEN PARK...ELDORADO SPRINGS...EVERGREEN...KITTREDGE...
ROCKY FLATS  AND WHITE RANCH OPEN SPACE SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER AND MOVE TO A PLACE OF SAFETY IF BAD WEATHER
APPROACHES.

RJK

COZ030-032>050-230600-

SIGNIFICANT WEATHER OUTLOOK FOR NORTHEAST AND NORTH CENTRAL COLORADO
NATIONAL WEATHER SERVICE DENVER COLORADO
1129 AM MDT FRI MAY 22 1998

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:  A FAIRLY MOIST...UNSTABLE...AIRMASS IS NOW IN PLACE OVER
THE FORECAST AREA.  AT THE SURFACE...DEVELOPING LOW PRESSURE OVER
SOUTHERN COLORADO WILL ALLOW AN EASTERLY COMPONENT TO THE WINDS THIS
AFTERNOON AND THIS EVENING.  THIS WILL CONTINUE TO BRING MOIST
UPSLOPE FLOW TO AREAS EAST OF THE CONTINENTAL DIVIDE.  IN THE UPPER
ATMOSPHERE...STRONG SOUTH-SOUTHWEST FLOW...A STORM SYSTEM CENTERED
JUST TO THE NORTHWEST OF COLORADO...AND COOLER AIR ALOFT WILL
PROVIDE ADDITIONAL ENHANCEMENT TO THUNDERSTORM DEVELOPMENT.  SHOWERS
AND THUNDERSTORMS ARE ALREADY DEVELOPING OVER THE FOOTHILLS...
PALMER...AND CHEYENNE RIDGES LATE THIS MORNING.  SHOWER AND
THUNDERSTORM COVERAGE SHOULD BE LIKELY THIS AFTERNOON AND EVENING
OVER MOST OF THE PLAINS AND THE FOOTHILLS OF THE FORECAST AREA.
SOME POTENTIAL FOR ISOLATED SEVERE THUNDERSTORMS EXISTS IN MOST
AREAS OF THE FLATLANDS...WITH TORNADOES...LARGE HAIL...AND HEAVY
RAINS THE THREATS.

SPOTTER ACTIVATION WILL BE REQUIRED BY 12:30 PM.      RJK