867:, and snow. In contrast to the usage in the United Kingdom, in the United States it is usually used when both air and ground temperatures are below 0 °C (32 °F). Additionally, it is generally used when some surface accumulation of ice and snow is expected to occur. During winter, a wide area can be affected by the multiple mixed precipitation types typical of a wintry mix during a single winter storm, as counterclockwise winds around a storm system bring warm air northwards ahead of the system, and then bring cold air back southwards behind it. Most often, it is the region ahead of the approaching storm system which sees the wintry mix, as warm air moves northward and above retreating cold air in a
660:
843:
and snow at once. Though there is no "official" definition of the term, in the United
Kingdom it is not used when there is any significant accumulation of snow on the ground. It is often used when the temperature of the ground surface is above 0 °C (32 °F), preventing snow from accumulating
871:, causing snow to change into ice pellets, freezing rain and finally rain. The reverse transition can occur behind the departing low-pressure system, though it is more common for precipitation to freeze directly from rain to snow, or for it to stop before a transition back.
807:
The depth of low-level warm air (below the freezing level) needed to melt snow falling from above to rain varies from about 230–460 m (750–1,500 ft) and depends on the mass of the flakes and the
816:
748:. In any one location, it usually occurs briefly as a transition phase from rain to snow or vice-versa, but hits the surface before fully transforming. Its
1019:
812:
of the melting layer. Rain and snow typically mix when the melting layer depth falls between these values as rain starts forming when in that range.
599:
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even if the air temperature near the surface is slightly below 0 °C (32 °F); but even then, the falling
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736:, which is fluid until striking an object where it fully freezes, this precipitation is soft and
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appearance, while right diagram shows variations which result in mixtures of rain and snow
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270:
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165:
126:
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388:
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773:
733:
527:
481:
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376:
263:
20:
417:
341:
172:
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995:"wintry mix - Definition of wintry mix in English by Lexico Dictionaries"
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297:
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101:
89:
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is a somewhat informal meteorological term, used primarily in the
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must generally have something else other than exclusively snow.
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in the lowest part of the atmosphere is slightly above the
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942:"SLEET | meaning in the Cambridge English Dictionary"
534:
16:
Form of precipitation consisting of rain and melting snow
19:"Rain and snow" redirects here. For the folk song, see
819:
Rain-snow-mix soundings; left diagram shows typical
1026:
772:in most Commonwealth countries. However, the
768:This precipitation type is commonly known as
744:from partially fused snowflakes, also called
682:
963:"Glossary - NOAA's National Weather Service"
689:
675:
839:, to refer to various mixtures of rain,
814:
1027:
921:"Rain and snow mixed - AMS Glossary"
795:This precipitation occurs when the
13:
923:. Glossary.ametsoc.org. 2012-01-26
828:"Wintry showers" or "wintry mixes"
14:
1051:
1013:
859:generally refers to a mixture of
740:, but it contains some traces of
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987:
976:
955:
934:
913:
763:
1:
1040:Snow or ice weather phenomena
999:Lexico Dictionaries - English
906:
965:. W1.weather.gov. 2009-06-25
790:
7:
874:
586:Severe weather terminology
48:Temperate and polar seasons
10:
1056:
944:. Dictionary.cambridge.org
805:(0 °C or 32 °F).
18:
720:composed of a mixture of
777:National Weather Service
891:Sleet (disambiguation)
824:
732:, which are hard, and
647:Tropical cyclone terms
818:
724:and partially melted
254:Extratropical cyclone
178:Air-mass thunderstorm
714:Commonwealth English
614:Weather modification
212:Anticyclonic tornado
1005:on August 15, 2019.
702:Rain and snow mixed
609:Weather forecasting
445:Rain and snow mixed
271:Subtropical cyclone
825:
665:Weather portal
281:Atlantic hurricane
259:European windstorm
166:Volcanic lightning
127:Cumulonimbus cloud
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1001:. Archived from
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276:Tropical cyclone
188:Dry thunderstorm
83:Tropical seasons
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357:Ground blizzard
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901:Winter weather
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837:United Kingdom
833:Wintry showers
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801:freezing point
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572:Severe weather
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1035:Precipitation
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881:Freezing rain
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861:freezing rain
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853:United States
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734:freezing rain
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600:United States
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377:Precipitation
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28:
27:
22:
21:Rain and Snow
1020:AMS Glossary
1003:the original
998:
989:
983:Crh.noaa.gov
978:
967:. Retrieved
957:
946:. Retrieved
936:
925:. Retrieved
915:
856:
850:
832:
831:
794:
783:to refer to
780:
769:
767:
757:
753:
742:ice crystals
709:
701:
700:
444:
418:Diamond dust
342:Winter storm
173:Thunderstorm
886:Ice pellets
865:ice pellets
797:temperature
785:ice pellets
764:Terminology
738:translucent
730:ice pellets
632:Meteorology
567:Meteorology
455:Snow roller
450:Snow grains
413:Ice pellets
362:Snow squall
293:Storm surge
239:Anticyclone
195:Mesocyclone
183:Thundersnow
132:Arcus cloud
1029:Categories
969:2019-06-13
948:2019-06-13
927:2019-06-13
907:References
869:warm front
857:wintry mix
810:lapse rate
626:Glossaries
562:Jet stream
501:Convection
487:Atmosphere
435:Cloudburst
298:Dust storm
264:Nor'easter
234:Fire whirl
229:Dust devil
222:Waterspout
149:Heat burst
144:Microburst
102:Wet season
90:Dry season
803:of water
791:Formation
787:instead.
728:. Unlike
557:Heat wave
552:Cold wave
496:Chemistry
347:Ice storm
337:Firestorm
249:Polar low
217:Landspout
200:Supercell
161:Lightning
139:Downburst
95:Harmattan
29:Part of
875:See also
752:code is
428:Freezing
389:Freezing
352:Blizzard
31:a series
851:In the
841:graupel
582:Extreme
528:Physics
518:Climate
506:Physics
396:Graupel
384:Drizzle
332:Sirocco
315:Monsoon
286:Typhoon
244:Cyclone
207:Tornado
154:Derecho
39:Weather
821:skew-T
590:Canada
545:Season
475:Topics
320:Amihan
308:Haboob
303:Simoom
115:Storms
70:Autumn
65:Summer
60:Spring
55:Winter
896:Slush
781:sleet
770:sleet
750:METAR
746:slush
716:) is
710:sleet
708:) or
595:Japan
523:Cloud
511:River
460:Slush
122:Cloud
758:SNRA
754:RASN
726:snow
722:rain
577:List
540:Mist
440:Snow
423:Rain
401:Hail
327:Gale
756:or
535:Fog
1031::
997:.
863:,
855:,
760:.
33:on
972:.
951:.
930:.
712:(
704:(
690:e
683:t
676:v
23:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.