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]


Wikimedia Foundation. 2010.

Игры ⚽ Нужна курсовая?

Look at other dictionaries:

  • Lake Effect Snow Warning — A Lake Effect Snow Warning is a bulletin issued by the National Weather Service in the United States to warn of heavy snowfall amounts that are imminent from convective snow generated by very cold airmass passing over unfrozen lakes. The criteria …   Wikipedia

  • Snow Advisory — A Snow Advisory is issued by the National Weather Service of the United States when a low pressure system produces snow that may cause significant disruption , but does not meet warning criteria. The advisory criteria varies from area to area.… …   Wikipedia

  • Lake-effect snow — Lake Effect redirects here. For the American literary journal, see Lake Effect (journal). Lake effect precipitation coming off Lake Erie and into Western New York, as seen by NEXRAD radar, October 12–13, 2006 …   Wikipedia

  • Coastal flood warning — A Coastal Flood Warning is issued by the National Weather Service of the United States when coastal flooding is either imminent or occurring along the coast of the Atlantic Ocean, Pacific Ocean, or the Gulf of Mexico. The flooding must be due to… …   Wikipedia

  • Blizzard warning — A Blizzard Warning is an advisory issued by the National Weather Service of the United States which means winds of 35 mph (56 km/h) or greater, mixed with heavy snow is forecast for a period of 3 hours or more. A blizzard tends to reduce… …   Wikipedia

  • Snowsquall warning — is a bulletin issued by Environment Canada s Meteorological Service of Canada to warn population of two types of snow events reducing visibilities in blowing snow:* Lake effect snowsqualls which are generated by cold arctic air moving over… …   Wikipedia

  • Severe weather terminology (United States) — This article describes the United States National Weather Service (NWS) severe weather terminology. The NWS defines precise meanings for nearly all its weather terms. This article describes NWS terminology and related NWS weather scales. Some… …   Wikipedia

  • Winter storm — A winter storm is an event in which the dominant varieties of precipitation are forms that only occur at cold temperatures, such as snow or sleet, or a rainstorm where ground temperatures are cold enough to allow ice to form (i.e. freezing rain) …   Wikipedia

  • Coastal flood advisory — A Coastal Flood Advisory is issued by the National Weather Service of the United States when coastal flooding along the coast of the Atlantic Ocean, Pacific Ocean, or the Gulf of Mexico is occurring or imminent, but does not pose a serious threat …   Wikipedia

  • Coastal flood watch — A Coastal Flood Watch is issued by the National Weather Service of the United States when coastal flooding along the coast of the Atlantic Ocean, Pacific Ocean, or the Gulf of Mexico is possible. The flooding must be due to water being forced… …   Wikipedia

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”