URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE SHREVEPORT LA 516 AM CST WED JAN 7 2015 ...LAKE WIND ADVISORY REMAINS IN EFFECT FOR THE ENTIRE FOUR STATE REGION FROM 9 AM THROUGH 6 PM CST TODAY... ...HARD FREEZE WARNING IN EFFECT FOR THE ENTIRE FOUR STATE REGION FROM 6 PM CST TONIGHT THROUGH 9 AM CST THURSDAY... THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A HARD FREEZE WARNING...WHICH IS IN EFFECT FROM 6 PM THIS EVENING TO 9 AM CST THURSDAY. THE LAKE WIND ADVISORY ALSO REMAINS IN EFFECT AREAWIDE FROM 9 AM THIS MORNING TO 6 PM THIS EVENING. * EVENT...ARCTIC HIGH PRESSURE WILL BUILD SOUTH INTO THE REGION TODAY...WITH A TIGHT PRESSURE GRADIENT RESULTING IN GUSTY NORTHERLY WINDS. THIS WILL ALSO SPILL THE COLDEST AIR SO FAR THIS WINTER SEASON SOUTHWARD...WITH TEMPERATURES EXPECTED TO FALL BELOW FREEZING ACROSS MUCH OF THE REGION THIS EVENING...AND WELL INTO THE TEENS AREAWIDE BY DAYBREAK THURSDAY. * TIMING...NORTHERLY WINDS WILL INCREASE TO 15 TO 20 MPH WITH GUSTS TO 30 MPH AFTER 9 AM AND CONTINUE THROUGHOUT THE DAY. TEMPERATURES WILL FALL BELOW FREEZING ACROSS MUCH OF THE REGION EARLY THIS EVENING...AND NOT CLIMB BACK ABOVE 20 DEGREES UNTIL MID MORNING THURSDAY. * IMPACT...BOATERS SHOULD EXERCISE CAUTION ON AREA LAKES DUE TO ROUGH CHOP. IN ADDITION...PROLONGED EXPOSURE TO THESE VERY COLD TEMPERATURES CAN CAUSE FROSTBITE. KEEP AN EYE ON THE ELDERLY...AS THEY CAN BE VERY VULNERABLE TO THESE DANGEROUSLY COLD TEMPERATURES. ENSURE THAT EXPOSED PIPES ARE COVERED AND SENSITIVE VEGETATION IS PROTECTED. IF POSSIBLE...BRING PETS INDOORS OR GIVE THEM A WARM PLACE TO STAY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A LAKE WIND ADVISORY INDICATES THAT WINDS WILL CAUSE ROUGH CHOP ON AREA LAKES. SMALL BOATS WILL BE ESPECIALLY PRONE TO CAPSIZING. A HARD FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER SENSITIVE VEGETATION. &&