Another Round of Rainfall

...HEAVY RAINFALL POSSIBLE IN THE SOUTHERN RED RIVER VALLEY...

A STRONG LOW PRESSURE SYSTEM IS EXPECTED TO MOVE NORTHEASTWARD
INTO THE NORTHERN PLAINS WEDNESDAY NIGHT THROUGH THURSDAY NIGHT.
THIS STORM SYSTEM...IN COMBINATION WITH A VERY MOIST AIR MASS FOR
THIS TIME OF YEAR...IS EXPECTED TO PRODUCE A BAND OF HEAVY
RAINFALL OVER PORTIONS OF THE NORTHERN PLAINS. RAINFALL AMOUNTS SO
FAR FOR THE MONTH OF SEPTEMBER HAVE BEEN ABOVE NORMAL ACROSS MOST
OF THE RED RIVER VALLEY AND ADJACENT AREAS. IN ADDITION...SOIL
MOISTURE VALUES ALSO REMAIN ABOVE SEASONAL AVERAGES. THUS...ANY
ADDITIONAL SIGNIFICANT RAINFALL WILL QUICKLY LEAD TO SOIL
SATURATION AND POTENTIAL RUNOFF.

AT THE PRESENT TIME...THE HEAVIEST RAINFALL AMOUNTS FROM THIS
STORM SYSTEM ARE EXPECTED TO BE SOUTH OF A VALLEY CITY TO FARGO TO
BEMIDJI LINE. TOTAL RAINFALL AMOUNTS IN THIS AREA MAY RANGE FROM
1 TO 2 INCHES...WITH SLIGHTLY HIGHER AMOUNTS POSSIBLE. IN THE
CENTRAL VALLEY...GENERALLY SOUTH OF A COOPERSTOWN TO GRAND FORKS
TO BEMIDJI LINE...PRECIPITATION TOTALS SHOULD GENERALLY RANGE FROM
THREE QUARTERS OF AN INCH TO ONE INCH. FOR AREAS NORTH OF THE
HIGHWAY TWO CORRIDOR...TOTAL RAINFALL AMOUNTS OF LESS THAN THREE
QUARTERS OF AN INCH ARE ANTICIPATED.

THE EXPECTED RAINFALL AMOUNTS IN THE SOUTHERN RED RIVER VALLEY MAY
CAUSE RIVER LEVELS TO RISE TO AROUND FLOOD STAGE IN A FEW
LOCATIONS. THERE IS STILL SOME UNCERTAINTY IN THE TRACK OF THIS
SYSTEM. THIS COULD SHIFT THE PLACEMENT OF THE BAND OF HEAVIEST
RAINFALL. MONITOR LATER FORECASTS AND STATEMENTS FOR UPDATED
INFORMATION ON THIS DEVELOPING WEATHER SITUATION.

Below is the Latest Rainfall Forecast for this event:

HPC QPF Totals

 



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