Hazardous Weather Outlook
Issued by NWS Denver/Boulder, CO

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FLUS45 KBOU 041144
HWOBOU

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE DENVER/BOULDER CO
544 AM MDT MON MAY 4 2015

COZ030>051-051145-
JACKSON COUNTY BELOW 9000 FEET-
WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET-
GRAND AND SUMMIT COUNTIES BELOW 9000 FEET-
SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST GRAND/
NORTHWEST BOULDER COUNTIES ABOVE 9000 FEET-
SOUTH AND SOUTHEAST GRAND/WEST CENTRAL AND SOUTHWEST BOULDER/
GILPIN/CLEAR CREEK/SUMMIT/NORTH AND WEST PARK COUNTIES ABOVE
9000 FEET-LARIMER AND BOULDER COUNTIES BETWEEN 6000 AND 9000 FEET-
JEFFERSON AND WEST DOUGLAS COUNTIES ABOVE 6000 FEET/GILPIN/CLEAR
CREEK/NORTHEAST PARK COUNTIES BELOW 9000 FEET-
CENTRAL AND SOUTHEAST PARK COUNTY-
LARIMER COUNTY BELOW 6000 FEET/NORTHWEST WELD COUNTY-
BOULDER AND JEFFERSON COUNTIES BELOW 6000 FEET/WEST BROOMFIELD
COUNTY-
NORTH DOUGLAS COUNTY BELOW 6000 FEET/DENVER/WEST ADAMS AND
ARAPAHOE COUNTIES/EAST BROOMFIELD COUNTY-
ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET-
NORTHEAST WELD COUNTY-CENTRAL AND SOUTH WELD COUNTY-MORGAN COUNTY-
CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES-
NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN
COUNTY-
SOUTHEAST ELBERT COUNTY BELOW 6000 FEET/SOUTH LINCOLN COUNTY-
LOGAN COUNTY-WASHINGTON COUNTY-SEDGWICK COUNTY-PHILLIPS COUNTY-
544 AM MDT MON MAY 4 2015

...WET AND UNSETTLED WEATHER THROUGH THE WEEK...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST AND NORTH CENTRAL
COLORADO.

.DAY ONE...TODAY AND TONIGHT

AN UPPER LOW MOVING ACROSS SOUTHERN CALIFORNIA AND ARIZONA WILL
CONTINUE TO ADVECT MOISTURE IN SOUTH-SOUTHWESTERLY FLOW ALOFT AS
UPSLOPE FLOW AT THE SURFACE ENTRAINS IT ACROSS NORTHEASTERN
COLORADO. THIS WILL BRING COOL AND CLOUDY CONDITIONS AS WELL AS WIDESPREAD
SHOWERS AND AFTERNOON THUNDERSTORMS TO THE AREA. NEAR RECORD
PRECIPITABLE WATER VALUES WILL ALLOW FOR LOCALLY HEAVY RAINFALL
FROM THE SHOWERS AND STORMS...ESPECIALLY LATE AFTERNOON INTO THE
EVENING. SNOW LEVELS WILL BE AROUND 10 THOUSAND FEET WITH A FEW
INCHES OF WET SNOW POSSIBLE THROUGH TONIGHT.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

WIDESPREAD SHOWERS AND A FEW THUNDERSTORMS WITH LOCALLY HEAVY
RAINFALL WILL REMAIN IN THE FORECAST ON TUESDAY. AT THIS
TIME...THE MAIN THREAT FOR LOCALLY HEAVY RAINFALL WILL OCCUR FROM
THE FOOTHILLS AND I-25 CORRIDOR EASTWARD ACROSS THE PLAINS LATE
TUESDAY MORNING THROUGH THE AFTERNOON HOURS. THE HEAVY RAIN THREAT
WILL DECREASE TUESDAY EVENING AS AN UPPER LEVEL DISTURBANCE MOVES
NORTHEAST OF THE STATE. AT THIS TIME...IT APPEARS THAT MAINLY BURN
SCARS WOULD BE MORE SUSCEPTIBLE TO ANY POTENTIAL FLOODING ISSUES.

WHILE THE OVERALL THREAT OF SEVERE WEATHER WILL BE LIMITED BY
MARGINAL INSTABILITY IN THE ATMOSPHERE...A BRIEF TORNADO WOULD BE
POSSIBLE TUESDAY AS WIND SHEAR INCREASES.

IN THE HIGHER MOUNTAINS...THE SNOW LEVEL IS EXPECTED TO LOWER INTO
THE 9500-10500 FOOT RANGE TUESDAY NIGHT INTO WEDNESDAY MORNING.
THE MORE SIGNIFICANT SNOW TOTALS SHOULD STILL BE LIMITED TO THE
HIGHER MOUNTAIN PEAKS ABOVE 11 THOUSAND TO 12 THOUSAND
FEET...WHERE SEVERAL INCHES TO OVER A FOOT OF SNOW WILL BE
POSSIBLE THROUGH WEDNESDAY.

UNSETTLED WEATHER WILL REMAIN IN THE FORECAST THROUGH NEXT WEEKEND
WITH A CHANCE OF SHOWERS AND STORMS NEARLY EACH AND EVERY DAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY OR TONIGHT.

$$

KRIEDERMAN/BARJENBRUCH


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