797
WWUS84 KHUN 210136
SPSHUN
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
736 PM CST SAT FEB 20 2021
ALZ001>006-TNZ076-096-211400-
LAUDERDALE-COLBERT-FRANKLIN AL-LAWRENCE-LIMESTONE-MADISON-MOORE-
LINCOLN-
736 PM CST SAT FEB 20 2021
...SIGNIFICANT WEATHER ADVISORY FOR BLACK ICE AND PATCHY FREEZING
FOG ACROSS NORTHWEST ALABAMA, AS WELL AS PORTIONS OF NORTH CENTRAL
ALABAMA AND SOUTHERN MIDDLE TENNESSEE...
SNOW MELT AND WATER RUNOFF THAT OCCURRED EARLIER TODAY WILL RESULT
IN PATCHES OF BLACK ICE ON A NUMBER OF AREA ROADWAYS OVERNIGHT, AS
TEMPERATURES FALL BELOW FREEZING. BRIDGES AND OVERPASSES, ESPECIALLY
THOSE CROSSING THE TENNESSEE RIVER, ARE ESPECIALLY AT RISK.
IN ADDITION TO THE THREAT FOR FROZEN WATER ON ROADS, PATCHY FREEZING
FOG MAY ALSO DEVELOP LATER THIS EVENING ACROSS PORTIONS OF THE
ADVISORY AREA. THIS FOG WILL BE CAPABLE OF DEPOSITING A THIN LAYER OF
ICE ON EXPOSED SURFACES. AGAIN, BRIDGES, OVERPASSES, AND ELEVATED
HIGHWAYS ARE MOST AT RISK.
BLACK ICE CAN BE ESPECIALLY DANGEROUS BECAUSE YOU MAY NOT BE ABLE TO
SEE IT UNTIL YOU HAVE ALREADY ENCOUNTERED IT. IF TRAVELING, USE
EXTREME CAUTION, ESPECIALLY ON BRIDGES, OVERPASSES, AND ELEVATED
HIGHWAYS WHERE WATER FREEZES FIRST. DO NOT ASSUME THAT A WELL
TRAVELED ROAD WILL BE FREE OF ICE.
THE THREAT FOR BLACK ICE AND PATCHY FREEZING FOG WILL END BY 8 AM
CST, AS TEMPERATURES RISE ABOVE FREEZING.
70/DD
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