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Freezing rain advisory 
Summary
A freezing rain advisory was an advisory issued by the National Weather Service in the United States when freezing rain or freezing drizzle was expected to cause significant inconveniences, but did not meet warning criteria (typically greater than 1⁄4 inch or 6.4 millimetres of ice accumulation).[1]
On October 2, 2017, issuance of the freezing rain advisory was discontinued. A winter weather advisory is now issued when the above criteria are forecast to be met.[2] However, ice storm warnings continue to be issued.
Example edit
Freezing Rain Advisory URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE GOODLAND KS 248 AM MST THU DEC 18 2008 ...FREEZING DRIZZLE AND FREEZING FOG EXPECTED TO DEVELOP TODAY... .AN UPPER LEVEL STORM SYSTEM WILL MOVE INTO THE CENTRAL HIGH PLAINS TODAY. AS WARM AIR ALOFT OVERRIDES COLD AIR AT THE SURFACE...FREEZING DRIZZLE AND FREEZING FOG WILL DEVELOP. WHILE WIDESPREAD ACCUMULATIONS OF ICE ARE NOT ANTICIPATED...TRAVEL COULD BECOME HAZARDOUS AS ICY SPOTS DEVELOP ON THE ROADS AND BRIDGES. KSZ001>004-013>016-029-NEZ079>081-181800- /O.EXT.KGLD.ZR.Y.0002.081218T1800Z-081219T0000Z/ CHEYENNE KS-RAWLINS-DECATUR-NORTON-SHERMAN-THOMAS-SHERIDAN-GRAHAM- GOVE-DUNDY-HITCHCOCK-RED WILLOW- INCLUDING THE CITIES OF...ST. FRANCIS...ATWOOD...OBERLIN... NORTON...GOODLAND...COLBY...HOXIE...HILL CITY...QUINTER... BENKELMAN...TRENTON...MCCOOK 248 AM MST THU DEC 18 2008 /348 AM CST THU DEC 18 2008/ ...FREEZING RAIN ADVISORY NOW IN EFFECT FROM 11 AM MST /NOON CST/ THIS MORNING TO 5 PM MST /6 PM CST/ THIS AFTERNOON... THE FREEZING RAIN ADVISORY IS NOW IN EFFECT FROM 11 AM MST /NOON CST/ THIS MORNING TO 5 PM MST /6 PM CST/ THIS AFTERNOON. FREEZING DRIZZLE AND FREEZING FOG WILL DEVELOP THIS AFTERNOON AS WARM AIR RIDES UP OVER TOP OF COLD AIR TRAPPED AT THE SURFACE. LATER THIS EVENING THE LOW PRESSURE SYSTEM WILL CONTINUE NORTH EAST AS COOLER AIR ALOFT MOVES OVERHEAD...CAUSING FREEZING RAIN AND DRIZZLE TO CHANGE OVER TO SNOW. LESS THAN A HALF OF AN INCH OF SNOW ACCUMULATION IS EXPECTED. A FREEZING RAIN ADVISORY MEANS THAT PERIODS OF FREEZING RAIN OR FREEZING DRIZZLE WILL FORM A GLAZE ON ROADS RESULTING IN HAZARDOUS TRAVEL. SLOW DOWN AND USE CAUTION WHILE DRIVING BECAUSE EVEN TRACE AMOUNTS OF ICE ON ROADS CAN BE DANGEROUS.
Source:[3]