Flash Flood Watch And Winter Storm Warning

From The National Weather Service

..FLASH FLOOD WATCH FOR THE FOURMILE...CRYSTAL...AND RESERVOIR ROAD BURN AREAS IN BOULDER AND LARIMER COUNTIES...
...WINTER STORM WARNING NORTHERN FRONT RANGE MOUNTAINS...

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

.DAY ONE...TODAY AND TONIGHT

A STRONG SPRING STORM OVER THE GREAT BASIN WILL BE MOVING NEAR THE FOUR CORNERS REGION THIS EVENING. THE JET ROUNDING THE BOTTOM WILL PUT NORTHEASTERN COLORADO UNDER A FAVORED LIFT AREA WITH INCREASING MOISTURE. STRONG UPSLOPE FLOW WILL BRING WIDESPREAD SHOWERS AND SCATTERED THUNDERSTORMS JUST AFTER NOON WITH SIGNIFICANT
PRECIPITATION POSSIBLE...ESPECIALLY ALONG AND NORTH OF INTERSTATE 70 CORRIDOR. SOME THUNDERSTORMS COULD STRENGTHEN TO SEVERE STRENGTH....MAINLY ALONG AND SOUTH OF THE INTERSTATE 70 CORRIDOR.

LARGE HAIL AND STRONG WINDS ARE THE MAIN THREAT WITH A FEW TORNADOES POSSIBLE AS WELL. THE MOIST AND UNSTABLE ATMOSPHERE WILL CREATE A THREAT OF HEAVY RAINFALL OVER THE FOOTHILLS WHICH CAUSES A CONCERN FOR FLASH FLOODING OVER THE BURN AREAS. AT HIGHER ELEVATIONS...SIGNIFICANT SNOWFALL IS EXPECTED TO BEGIN THIS EVENING WITH 4 TO 10 INCHES BY EARLY THURSDAY MORNING. THE HIGHEST AMOUNTS WILL BE FOUND ALONG EASTERN FACING SLOPES...ESPECIALLY OVER THE
MOUNTAINS OF LARIMER AND BOULDER COUNTIES.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

THE STRONG SPRING STORM SYSTEM WILL GRADUALLY MOVE NORTH OF THE AREA THURSDAY INTO FRIDAY. THIS WILL BRING A DECREASE IN SHOWERS AND THUNDERSTORMS TO THE PLAINS AND FOOTHILLS. HOWEVER...IN THE MOUNTAINS...SNOW SHOWERS WILL CONTINUE WITH ADDITIONAL SNOW ACCUMULATION EXPECTED ALL THE WAY THROUGH FRIDAY NIGHT. THE HEAVIEST SNOW IS EXPECTED TO TAPER OFF THURSDAY AFTERNOON.