Satellite Precipitation Estimates (TXUS20 KWBC)
Issued by NWS

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TXUS20 KNES 281719
SPENES
ZCZC NFDSPENES ALL
SPENES
MTZ000-WYZ000-IDZ000-
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SATELLITE PRECIPITATION ESTIMATES..DATE/TIME 12/28/14 1718Z
SATELLITE ANALYSIS BRANCH/NESDIS---NPPU---TEL.301-683-1404
LATEST DATA USED: GOES-15 1700Z KUSSELSON
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LOCATION...W AND C MONTANA...W AND C WYOMING...IDAHO...N UTAH...
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ATTN WFOS...BYZ...RIW...TFX...PIH...MSO...OTX...SLC...
ATTN RFCS...MBRFC...CBRFC...NWRFC...
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EVENT...SAME OR SLIGHTLY HIGHER MOISTURE WITH BETTER DYNAMICS THAN
YESTERDAY WITH MORE EFFICIENT SNOW PRODUCTION ESPECIALLY AHEAD OF SHORT
WAVE FORCING/COOL CLOUD TOP ENHANCEMENT...
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SATELLITE ANALYSIS AND TRENDS...OLD/PREVIOUS MAIN VORT HAS ALMOST
DISAPPEARED FROM S CENTRAL BRITISH COLUMBIA WHILE NEW MORE VIGOROUS
SHORT WAVE WITH A LITTLE COMMA CURL HAS TAKEN OVER AND CENTERED NOW NEAR
MISSOULA/S MINERAL COUNTY NEAR THE MT-ID BORDER.   PRETTY LOW PRECIP
WATER VALUES ACROSS THE N/C/E IDAHO...WESTERN/C MONTANA...WYOMING AREA
AT NO HIGHER THAN 0.30" AND NEAR OF SLIGHTLY ABOVE YESTERDAY VALUES.
ONE BIG KEY TO MORE SNOW IS SHORT WAVE FORCING WITH THAT NEW VORT COMMA
MENTIONED ABOVE...BUT A FEW OTHER WEAKER ONES OUT AHEAD ALONG THE E
ID-WY BORDER AND WEAK ONE OVER SW MONTANA.  UPSHOT IS A BIT MORE SNOW
ESPECIALLY WITH ENHANCED COOLER CLOUD TOPS AND OVER MOUNTAIN AREAS.
LIMITED MOISTURE ADVECTION WITH SUCH A WESTERLY MID LEVEL FLOW...SO IF
THERE IS SOME MOISTURE ADVECTION IT WOULD BE CLOSE TO THE SURFACE  AND
CLOSE TO SHORT WAVES MENTIONED ABOVE.
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AN ANNOTATED SATELLITE GRAPHIC SHOWING THE HEAVY PRECIPITATION
THREAT AREA SHOULD BE AVAILABLE ON THE INTERNET ADDRESS LISTED
BELOW IN APPROXIMATELY 10-15 MINUTES.
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SHORT TERM OUTLOOK VALID 1700-2000Z...MEDIUM CONFIDENCE FACTOR
IN SHORT TERM OUTLOOK...LATCHING ON TO NOW MAIN SHORT WAVE INTERIOR NW
MONTANA/NE IDAHO BORDER AREA AND OUT AHEAD FOR STEADY LIGHT TO MODERATE
SNOW.  ANOTHER WEAK SHORT WAVE MOVING LITTLE SW MONTANA HELPING WITH
THE GENERALLY LIGHT/OCCLY MODERATE SNOW WITH COOLER CLOUD ENHANCEMENT
GENERALLY WEST OF KBIL BUT DRIFTING EAST.  SHORT WAVE E CENTRAL IDAHO NEAR
THE WYOMING BORDER PRODUCING A HEALTHY COOL CLOUD TOP ENHANCEMENT WITH A
SEMI COMMA SHAPE FOR ADDITIONAL STEADY LIGHT TO MODERATE/OCCLY HVY SNOW
THERE WITH SOME EXTRA HELP FROM JET CROSSING S ID/N NV INTO SW WYOMING.
SHOULD CONTINUE TO SPREADING INCRD SNOW, ESPECIALLY HIGH SPOTS SOUTH
THRU N CENTRAL  UT THIS PERIOD.
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....NESDIS IS A MEMBER OF NWSCHAT (NESDISSATELLITEPRECIP)....
....NESDIS IS A MEMBER OF 12 PLANET....
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FOR QUESTIONS AND COMMENTS CONCERNING THE SATELLITE
PRECIPITATION MESSAGES AND GRAPHICS PLEASE EMAIL
SSDPrecip@noaa.gov
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FOR PRECIP MESSAGES AND GRAPHICS ON THE WEB:
http://www.ospo.noaa.gov/Products/atmosphere/spe/
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FOR AUTOMATED SATELLITE PRECIPITATION ESTIMATES ON THE WEB:
http://www.star.nesdis.noaa.gov/smcd/emb/ff/CONUS.php
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LAT...LON 4725 11603 4632 10832 4301 10816 4318 11193 4427 11389

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