NWS Special Weather Statement:
* Here is a Special Weather Statement that has been issued from the National Weather Service in Jackson:SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
702 AM CST FRI FEB 23 2007
...MAJOR STORM SYSTEM TO IMPACT THE REGION SATURDAY INTO SATURDAY NIGHT...
A POWERFUL LOW PRESSURE SYSTEM WILL PASS JUST NORTHWEST OF THE ARKLAMISS SATURDAY THROUGH EARLY SUNDAY...DRAGGING A COLD FRONT QUICKLY EAST ACROSS THE LOWER MISSISSIPPI VALLEY. VERY TIGHT SURFACE PRESSURE GRADIENTS AHEAD OF THIS COLD FRONT SATURDAY INTO SATURDAY EVENING WILL RESULT IN SOUTHERLY WINDS THAT WILL GUST FROM30 TO 40 MPH AT TIMES...PERHAPS EVEN STRONGER IN FLATTER "DELTA" AREAS OF NORTHWEST MISSISSIPPI...EXTREME SOUTHEAST ARKANSAS AND NORTHEAST LOUISIANA. SUCH WIND GUSTS WOULD HAVE THE ABILITY TO DOWN WEAK TREES...BREAK SMALLER TREE BRANCHES...AND GENERALLY BE AN NUISANCE TO PLANNED OUTDOOR ACTIVITIES.
HOWEVER...THE MAIN STORY WITH THIS WEATHER SYSTEM WILL LIKELY BE POWERFUL THUNDERSTORMS EXPECTED TO PROGRESS QUICKLY EAST THROUGH THE OUTLOOK AREA SATURDAY AFTERNOON AND SATURDAY EVENING. STRONG WINDS...AND ASSOCIATED WIND SHEAR...WILL WORK WITH ATMOSPHERIC INSTABILITY TO BRING STORM INTENSITIES PAST SEVERE LIMITS. THE MOST PROBABLE SCENARIO IS THAT AN INTENSE SQUALL LINE CAPABLE OF WIDESPREAD DAMAGING WINDS WELL IN EXCESS OF 60 MPH WILL RAKE MOST OFTHE AREA DURING THIS PERIOD. ALTHOUGH DESTRUCTIVE WINDS WILL BE THE MAIN RISK...ISOLATED TORNADOES AND LARGE HAIL ARE ALSO POSSIBLE WITH THIS ACTIVITY.
RESIDENTS OF EXTREME SOUTHEAST ARKANSAS...NORTHEAST LOUISIANA AND MUCH OF MISSISSIPPI SHOULD CLOSELY MONITOR THE WEATHER SITUATION ON SATURDAY AS WIDESPREAD HAZARDOUS WEATHER IS EXPECTED. ALTHOUGH A LATEDAY SQUALL LINE SHOULD BE THE MAIN SOURCE OF HAZARDOUS CONDITIONS...THERE STILL IS SOME UNCERTAINTY REGARDING HOW WEATHER EVENTS WILL UNFOLD AND PERSONS IN THE OUTLOOK AREA SHOULD BE PREPARED TO ACT QUICKLY IF SEVERE WEATHER IS IMMINENT.
posted by Chris Whited @ 7:26 AM
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