HPC Storm Summary #41 for T.D. Nora




STORM SUMMARY 41 FOR TROPICAL DEPRESSION NORA
NATIONAL CENTERS FOR ENVIRONMENTAL PREDICTION
HYDROMETEOROLOGICAL PREDICTION CENTER...NWS...WASHINGTON DC
145 PM EDT FRI SEP 26 1997

AT 9AM MDT/8 AM PDT THE LOW PRESSURE SYSTEM ASSOCIATED WITH THE
REMAINS OF TROPICAL DEPRESSION "NORA" WAS LOCATED OVER SOUTHEAST
UTAH... ROUGHLY 50 MILES NW OF BLANDING.  THIS SYSTEM HAS WEAKENED
CONSIDERABLY OVER THE LAST 12 HOURS AND IS EXPECTED TO CONTINUE TO
WEAKEN THIS AFTERNOON. AT THE CURRENT TIME...PRECIPITATION HAS MOVED
WELL EAST OF THE REMAINS OF THE SURFACE LOW PRESSURE SYSTEM...INTO
EASTERN UTAH...WESTERN COLORADO AND PARTS OF WYOMING. ANOTHER
AREA OF PRECIPITATION IS OCCURRING OVER CENTRAL ARIZONA.

THE MAIN PROBLEMS ASSOCIATED WITH THIS SYSTEM HAVE BEEN HEAVY
RAINFALL AND FLASH FLOODING. THE FOLLOWING ARE SOME RAINFALL
AMOUNTS IN INCHES FOR THE 24 HOUR PERIOD THAT ENDED AT 6AM MDT THIS
MORNING:

ARIZONA
	BAGDAD           4.65
        YUMA             3.83
        JEROME           2.07
        PRESCOTT         1.57
        KINGMAN          1.13

UTAH
        BRYCE CANYON     1.80

        ZION             1.33

        CEDAR CITY       0.29

NEVADA
        LAS VEGAS        0.71

        DESERT ROCK      0.99

CALIFORNIA
        BLYTHE           1.66

        THERMAL          1.98

        IMPERIAL BEACH   1.35

        ESCONDIDO        1.72

        TWENTYNINE PALMS 2.40

WHILE THE SYSTEM HAS WEAKENED...ABUNDANT MOISTURE REMAINS IN PLACE
OVER PARTS OF THE SOUTHWESTERN U.S. AND WILL INTERACT WITH A
FRONTAL SYSTEM MOVING THROUGH THE NORTHWESTERN U.S. TO PRODUCE
RAIN AND THUNDERSTORMS OVER PARTS OF THE CENTRAL AND SOUTHERN
ROCKIES DURING THE DAY TODAY. THE HEAVIEST RAINS DURING THE NEXT 12
HOURS OR SO SHOULD OCCUR OVER SOUTHERN UTAH AND SOUTHWESTERN
COLORADO. RAINFALL AMOUNTS IN EXCESS OF 2 INCHES ARE LIKELY ACROSS
PORTIONS OF THESE AREAS WITH LOCALLY HEAVIER AMOUNTS OVER FAVORED
TERRAIN. FLASH FLOODING AND MUDSLIDES WILL CONTINUE TO BE THE MAIN
THREAT FROM THIS SYSTEM. FOR THIS REASON...FLASH FLOOD WATCHES ARE IN
EFFECT THROUGH TODAY FOR SOUTHERN UTAH AND SOUTHWEST COLORADO. A
FLASH FLOOD WARNING HAS BEEN EXTENDED UNTIL 12PM MDT FOR YAVAPAI
COUNTY IN ARIZONA.

THIS WILL BE THE LAST STORM SUMMARY ISSUED ON THIS SYSTEM.

GARTNER/FORECAST OPERATIONS BRANCH