ZCZC NFDSPENES ALL
SPENES
SDZ000-NDZ000-MTZ000-WYZ000-IDZ000-
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SATELLITE PRECIPITATION ESTIMATES..DATE/TIME 05/23/08 0713Z
SATELLITE ANALYSIS BRANCH/NESDIS---NPPU---TEL.301-763-8678
LATEST DATA USED: GOES-12/11 0700Z KUSSELSON
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LOCATION...SOUTH DAKOTA...MONTANA...WYOMING...IDAHO
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ATTN WFOS...FSD...ABR...UNR...BYZ...RIW...TFX...PIH...MSO...
ATTN RFCS...MBRFC...NWRFC...
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EVENT...LONG FETCH OF MOISTURE IN PLACE FOR CONTINUED MODERATE TO HVY
PRECIPITATION FOR AWHILE...APPEARS NAM...GFS AND EURO ALL ON THE SAME
PAGE...
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SATELLITE ANALYSIS AND TRENDS...WELL DEFINED MOISTURE PLUME OR
CONCENTRATION OF HIGHEST MOISTURE WAS NOW FROM TX/LA TO E KS/W MO TO
SD TO N WY/S AND C MT ON BACK WESTWARD INTO IDAHO.  EVEN MORE REMARKABLE
FOR MAY OR FOR ANYTIME OF THE YEAR FOR THAT MATTER WAS MOISTURE TRANSPORT
LOW LEVEL WINDS BLOWING NEARLY PARALLEL THE BEST MOISTURE WITH VERY
GOOD MOISTURE TRANSPORT INTO THE W SD...AND ALONG NORTHERN WY AND W AND
CENTRAL MT.   TO DO THIS YOU NEED AN ANOMALOUS UPPER LEVEL PATTERN WHICH
YOU HAVE WITH A DEEP LOW THAT HAS BEEN RETROGRADING SW THE PAST 24HRS AND
NOW NEAR THE AZ-NV-CA BORDER. GOOD MOISTURE TRANSPORT WILL CONTINUE TO
FEED HVY RAIN GENERATION INTO W SD...GENERALLY JUST NORTH OF RAPID CITY IN
THE BLACK HILLS AND ACROSS SE TO S CENTRAL/CENTRAL MONTANA AND N WY AND
PROBABLY EVEN FURTHER WEST INTO SW MONTANA.   OBVIOUSLY MOST VULNERABLE
AREAS TO EXCESSIVE RAINS WILL BE UPSLOPE EAST OR SE FACING MOUNTAINS/HILLS
AND ANTECEDENT SOIL CONDITIONS IN WHICH SNOW MELT AND PAST WETNESS HAVE
BEEN PRIME CONTRIBUTORS TO SOIL WETNESS.  WILL CONTINUE TO MONITOR...
SEE SATELLITE ANALYSIS GRAPHIC ON HOME PAGE AT ADDRESS BELOW...
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SEE NCEP HPC DISCUSSION AND QPF/S FOR FORECAST.
....NESDIS IS A MEMBER OF 12 PLANET....
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SSD/SAB WEB ADDRESS FOR PRECIP ESTIMATES:
HTTP://WWW.SSD.NOAA.GOV/PS/PCPN/
...ALL LOWER CASE EXCEPT /PS/PCPN/
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LAT...LON 4731 11435 4591 10381 4317 9814 4308 9798 4425 11105
4401 11433
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