Heavy snow warning

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A heavy snow warning was a hazardous weather statement issued by the Weather Forecast Offices of the National Weather Service (NWS) in the United States which indicates a high rate of snowfall was occurring or was forecast to occur. Generally, the warning was issued for snowfall rates of 6 inches (15 cm) or more in 12 hours, or 8 inches (20 cm) or more in 24 hours.

This warning was discontinued beginning with the 2008–09 winter storm season, replaced by the winter storm warning for heavy snow.

In Canada, comparable warnings were issued by Environment Canada through the Meteorological Service of Canada (MSC).

URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE FAIRBANKS AK 221 PM AST SUN DEC 9 2007  .A STORM SYSTEM MOVING NORTH OVER THE CENTRAL BERING SEA WILL MOVE TO SOUTHWEST OF SAINT LAWRENCE ISLAND MONDAY AFTERNOON. THE STORM WILL BRING SNOW AND EAST WINDS OF 30 TO 45 MPH TONIGHT OVER MUCH OF WESTERN ALASKA FROM THE YUKON DELTA TO THE SEWARD PENINSULA TONIGHT. WINDS WILL DIMINISH EARLY MONDAY BUT SNOW IS EXPECTED TO CONTINUE THROUGH MONDAY AFTERNOON.  AKZ212-100600- /X.CON.PAFG.HS.W.0011.071210T0000Z-071211T0200Z/ EASTERN NORTON SOUND AND NULATO HILLS- INCLUDING...UNALAKLEET...STEBBINS...ST MICHAEL...ELIM...KOYUK... SHAKTOOLIK 221 PM AST SUN DEC 9 2007  ...HEAVY SNOW WARNING REMAINS IN EFFECT UNTIL 5 PM AST MONDAY...  A HEAVY SNOW WARNING REMAINS IN EFFECT UNTIL 5 PM AST MONDAY.  SNOW WILL SPREAD INTO THE AREA SOUTH OF UNALAKLEET THIS AFTERNOON...AND WILL SPREAD NORTH TONIGHT...AND CONTINUE INTO MONDAY. SNOWFALL ACCUMULATION OF 6 TO 10 INCHES ARE EXPECTED WITH HIGHEST AMOUNTS ACROSS THE NULATO HILLS. EAST WINDS WILL INCREASE TONIGHT TO 25 TO 35 MPH AND SOME VISIBILITIES WILL BE REDUCED TO ONE-QUARTER MILE AT TIMES IN BLOWING SNOW.  A HEAVY SNOW WARNING MEANS HAZARDOUS WINTER WEATHER IS EXPECTED. THE ACCUMULATION OF NEW SNOW WILL MAKE TRAVEL DIFFICULT.  $$ 

• Severe weather terminology (Canada)
• Severe weather terminology (United States)
• Winter storm

• National Weather Service
• Federal Emergency Management Agency
• Meteorological Service of Canada
• Environment Canada

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