SEE THE BHMNPWMOB PRODUCT FOR DETAILS RELATED TO THE INLAND AREAS. A TORNADO AND FLASH FLOOD WATCH ARE IN EFFECT FOR ALL OF SOUTHEAST MISSISSIPPI...SOUTHWEST ALABAMA AND NORTHWEST FLORIDA. ...STORM INFORMATION... AT 700 AM CDT...MOBILE ALABAMA RADAR ESTIMATED THE CENTER OF HURRICANE KATRINA TO BE ABOUT 90 MILES SOUTHWEST OF THE WEST END OF DAUPHIN ISLAND...AND IS MOVING NORTH NEAR 16 MPH. THIS MOTION IS EXPECTED TO CONTINUE THROUGH THE MORNING...WITH A GRADUAL TURN TOWARD THE NORTHEAST AT A SLIGHTLY FASTER SPEED LATER TODAY AND TONIGHT AS THE CENTER OF KATRINA MOVES NORTHWARD THROUGH MISSISSIPPI. CONDITIONS ARE RAPIDLY DETERIORATING ALONG THE ALABAMA AND NORTHWEST FLORIDA COASTS...WITH WINDS GUSTING BETWEEN 80 AND 90 MPH OFF THE ALABAMA COAST...AND TO NEAR 70 MPH OFF THE FLORIDA PANHANDLE. STORM TIDES HAVE RISEN TO NEAR 9 FEET ALONG THE WESTERN ALABAMA COAST...AND TO NEAR 5 FEET ALONG THE FLORIDA PANHANDLE. TIDE LEVELS WILL CONTINUE TO RISE SEVERAL MORE FEET OVER THE NEXT SEVERAL HOURS. THE MINIMUM CENTRAL PRESSURE RECENTLY REPORTED BY AN AIR FORCE RESERVE UNIT RECONNAISSANCE AIRCRAFT WAS 918 MB...27.11 INCHES. KATRINA IS A STRONG CATEGORY FOUR HURRICANE ON THE SAFFIR-SIMPSON SCALE. ...PRECAUTIONARY/PREPAREDNESS ACTIONS... PREPARATIONS TO PROTECT LIFE AND PROPERTY SHOULD BE COMPLETED. ...STORM SURGE FLOOD AND STORM TIDE IMPACTS... KATRINA HAS BEGUN TO MAKE LANDFALL ALONG THE EXTREME SOUTHEAST LOUISIANA COAST NEAR THE MOUTH OF THE MISSISSIPPI RIVER. A SIGNIFICANT AND LIFE THREATENING STORM SURGE IS EXPECTED TO BE FELT WELL EAST OF THE STORM CENTER ALONG THE MISSISSIPPI AND ALABAMA COASTLINES. TIDE LEVELS AS HIGH AS 10 TO 15 FEET WILL BE POSSIBLE ALONG COASTAL MOBILE COUNTY AND THE WESTERN PORTIONS OF MOBILE BAY. TIDE LEVELS OF THIS MAGNITUDE WOULD SEVERALLY AFFECT DOWNTOWN MOBILE WITH WATER SPILLING INTO THE DOWNTOWN AREA AND EXTENDING AS FAR WEST AS BROAD STREET. IN ADDITION...DAUPHIN ISLAND WOULD LIKELY BE INUNDATED...EXCEPT FOR HIGHER GROUND ON THE EAST END. A STORM TIDE OF 10 TO 12 FEET IS EXPECTED ALONG COASTAL BALDWIN COUNTY...COMPARABLE TO HURRICANE IVAN OF LAST YEAR. TIDE LEVELS ALONG THE NORTHWEST FLORIDA COAST WILL RANGE FROM NEAR 8 FEET IN THE PENSACOLA AREA TO AROUND 5 FEET IN THE DESTIN AREA. ...WIND IMPACTS... HURRICANE FORCE WINDS...75 MPH OR GREATER...WILL CONTINUE SPREADING OVER MOBILE AND BALDWIN COUNTIES OVER THE NEXT SEVERAL HOURS...WITH OCCASIONAL GUSTS TO NEAR 100 MPH NEAR THE MISSISSIPPI STATE LINE. POWER OUTAGES WILL PROBABLY BE WIDESPREAD OVER SOUTHEAST MISSISSIPPI AND EXTREME SOUTHWEST ALABAMA DURING THE MORNING AND AFTERNOON HOURS. SOME STRUCTURAL DAMAGE IS ALSO LIKELY.