Satellite Precipitation Estimates (TXUS20 KWBC)
Issued by NWS

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TXUS20 KNES 240251
SPENES
ZCZC NFDSPENES ALL
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ORZ000-WAZ000-
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SATELLITE PRECIPITATION ESTIMATES..DATE/TIME 04/24/14 0251Z
SATELLITE ANALYSIS BRANCH/NESDIS---NPPU---TEL.301-683-1404
LATEST DATA USED: GOES-15 0230Z KUSSELSON
NOAA AMSU:2130Z 2315Z DMSP SSMIS:0139Z
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LOCATION...W OREGON...W WASHINGTON...
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ATTN WFOS...PDT...MFR...SEW...PQR...
ATTN RFCS...NWRFC...
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EVENT...WARM FRONT CONTINUING TO LIFT NORTH ALONG N OREGON COAST INTO
SW WA...MAIN FRONTAL RAIN TO FOLLOW TONIGHT...1-2" MOUNTAINS...1"+
STILL POSSIBLE LANDSLIDE AREA...
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SATELLITE ANALYSIS AND TRENDS...MODERATE MOISTURE PLUME CONTINUED TO
SHIFT EAST WITH MAX PWAT VALUES OF 1.1" GETTING CLOSE TO THE OREGON
COAST AND NOSE OF 0.9" WORKING INTO W CENTRAL TO SW WA.   700MB WINDS
BLOWING WESTERLY THROUGH THE SW TO NE ORIENTED PLUME...EXCEPT A SMALL
FETCH ALIGNED PARALLEL THE THE PLUME NORTH OF 45N...SO PWAT MAX ANOMALY
OF 150 TO 175 PERCENT, THOUGH HIGH...BEING REDUCED SOME BY WEAK MOISTURE
TRANSPORT SOUTH OF 45N AND SHORT FETCH MOISTURE TRANSPORT NORTH.  WHAT
THIS SYSTEM DOES HAVE GOING FOR IT WAS ENTRAINED SUBTROPICAL MOISTURE
THAT HAS SURVIVED TO SOME EXTENT AND  WHEN INTERACTING WITH MODERATE
UPPER LEVEL JET AXIS 40N/145W TO ITS NOSE NEAR THE NW OREGON/SW WA COAST
AND TANDEM OF SHORT WAVES AT 44N/134W AND 48N/132W THERE COULD BE 1-2
INCHES IN THE MOUNTAINS...1"+ CLOSE TO THE LANDSLIDE AREA..POSSIBLY MORE
IF MOISTURE BECAME BETTER LATER TONIGHT/THRUSDAY MORNING.  IN ADDITION
2130Z AMSU RAIN RATE MAX OF 0.25"/HR AT 47N/128.5W HAS PUSH EAST TO SW
WA AND MERGED WITH AN ISOLATED 0.20"/HR MAX RATE AT 45N/126W THAT SHOULD
HELP WITH WARM FRONTAL RAIN TOTALS THRU THIS EVENING...THEN A 0.25"/HR
MAX RATE AT 48N/131W WILL FOLLOW WITH FRONT FOR LATER TONIGHT. BACK EDGE
OF DEEP MOISTURE/DRYING PRECIP WATER VALUES (0.5") HAS MOVED 400 MILES
PAST 11 HRS AND EXTRAPOLATION WOULD HAVE TO REACHING THE WA COAST ABOUT
13Z WITH SHOWERY RAINS FOLLOWING THURSDAY MORNING.
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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 0245-0900Z...MEDIUM CONFIDENCE FACTOR
IN SHORT TERM OUTLOOK...WARM FRONT LIFTING NORTH WITH GENERAL MODERATE TO
LOCALLY HVY LIFTING SOUTH TO NORTH ACROSS WESTERN WA FOR EVENING FOLLOWED
BY FRONTAL RAINS FOR THE OVERNIGHT...FOLLOWED BY TRANSITIONS TO SHOWERS
THURSDAY MORNING.  1-2" MOUNTAINS...LESS THAN 1" LOWLANDS...1" POSSIBLY
A BIT HIGHER LANDSLIDE AREA...ISOLATED 2-3 INCH POSSIBLE IF EVERYTHING
COMES TOGETHER BEFORE TURNING SHOWERY THURSDAY MORNING AS SYSTEM IS
PROGRESSIVE WITH NEXT UPSTREAM SYSTEM PROGRESSING TO THE DATELINE AREA
AND ALSO HAS INGESTED SOME SUBTROPICAL MOISTURE FROM 98W.
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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 4766 12593 4725 12127 4281 12263 4214 12557
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