Heavy snow warning

Heavy snow warning

A Heavy snow warning is issued by the National Weather Service of the United States when a high rate of snowfall is occurring or is forecast. Generally, the warning is issued for snowfall rates of 6 inches (15 cm) or more in 12 hours, or 8 inches (20 cm) or more in 24 hours.

A similar warning is issued by Environment Canada's Meteorological Service of Canada

Example of a heavy snow warning

URGENT - WINTER WEATHER MESSAGENATIONAL WEATHER SERVICE FAIRBANKS AK221 PM AST SUN DEC 9 2007

.A STORM SYSTEM MOVING NORTH OVER THE CENTRAL BERING SEA WILL MOVETO SOUTHWEST OF SAINT LAWRENCE ISLAND MONDAY AFTERNOON. THE STORMWILL BRING SNOW AND EAST WINDS OF 30 TO 45 MPH TONIGHT OVER MUCHOF WESTERN ALASKA FROM THE YUKON DELTA TO THE SEWARD PENINSULATONIGHT. WINDS WILL DIMINISH EARLY MONDAY BUT SNOW IS EXPECTED TOCONTINUE 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...SHAKTOOLIK221 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 THISAFTERNOON...AND WILL SPREAD NORTH TONIGHT...AND CONTINUE INTOMONDAY. SNOWFALL ACCUMULATION OF 6 TO 10 INCHES ARE EXPECTED WITHHIGHEST AMOUNTS ACROSS THE NULATO HILLS. EAST WINDS WILL INCREASETONIGHT TO 25 TO 35 MPH AND SOME VISIBILITIES WILL BE REDUCED TOONE-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.

$$

ee also

Severe weather terminology (United States)

External links

* [http://www.nws.noaa.gov/ National Weather Service]
* [http://www.fema.gov Federal Emergency Management Agency]
* [http://www.msc-smc.ec.gc.ca/cd/brochures/warning_e.cfm? Meteorological Service of Canada]


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