Flash Flood Watch

...FLASH FLOODING IS POSSIBLE OVER MOST OF SOUTHERN NEW MEXICO AND FAR WEST TEXAS THIS AFTERNOON AND TONIGHT...BUT ESPECIALLY FOR AREAS FROM THE RIO GRANDE VALLEY WESTWARD... .A MOIST UNSTABLE AIRMASS PERSISTS THIS EVENING OVER THE AREA. MOISTURE VALUES ARE RUNNING ALMOST TWICE AS HIGH AS NORMAL AND STORM SPEED MOVEMENT IS EXPECTED TO BE FAIRLY SLOW. STORMS CAN BE EXPECTED TO DROP UP TO AN INCH OF RAINFALL OVER RATHER SHORT TIME PERIODS... WITH A FEW STORMS POSSIBLY DROPPING AS MUCH AS TWO TO FOUR INCHES OF RAIN. ...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 6 AM MDT SATURDAY... THE FLASH FLOOD WATCH CONTINUES FOR * PORTIONS OF SOUTH CENTRAL NEW MEXICO AND SOUTHWEST NEW MEXICO...INCLUDING THE FOLLOWING AREAS...IN SOUTH CENTRAL NEW MEXICO...SIERRA COUNTY LAKES REGION AND SOUTHERN DESERT. IN SOUTHWEST NEW MEXICO...SOUTHWEST DESERT/BOOTHEEL...SOUTHWEST DESERT/MIMBRES BASIN AND SOUTHWEST MOUNTAINS/LOWER GILA REGION. * UNTIL 6 AM MDT SATURDAY * A VERY MOIST AND UNSTABLE AIRMASS ALONG WITH SLOW STORM MOVEMENT MAY PRODUCE LOCALLY VERY HEAVY RAINS AND FLASH FLOODING. * FLOODING OF ARROYOS AND URBAN DRAINAGES IS LIKELY. IN ADDITION FLOODING OF ROADWAYS AND LOW LYING AREAS IS POSSIBLE.