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SATELLITE PRECIPITATION ESTIMATES..DATE/TIME 04/19/08 2054Z
SATELLITE ANALYSIS BRANCH/NESDIS---NPPU---TEL.301-763-8678
LATEST DATA USED: GOES-11:2030Z DS
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LOCATION...W/CENTRAL MONTANA...CENTRAL IDAHO...
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ATTN WFOS...BYZ...GGW...TFX...PIH...MSO...BOI...
ATTN RFCS...MBRFC...NWRFC...
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EVENT...ENHANCING BAROCLINIC LEAF
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SATELLITE ANALYSIS AND TRENDS...WV IMAGERY SHOWS MID/UPPER LVL CIRCULATION
ALONG THE BC/NW WA COAST WITHIN THE UPPER TROF THAT IS SLOWLY SINKING
SWD. TWO MAIN JET STREAKS CAN BE SEEN IN WV IMAGERY AND DEPICTED BY GOES
STLT WINDS..ONE DROPPING DOWN THE BACKSIDE OF THE TROF TWDS THE OFFSHORE
WATERS OF N CA AND THE OTHER ACROSS THE FOUR CORNERS REGION..ALTHOUGH
UPPER LOW APPEARS TO BE PULLING HIGH LVL MOISTURE ASSCD WITH BAROCLINIC
LEAF NWD ACROSS MT SO A SOMEWHAT WEAKER NWD EXTENSION OF THE 2ND STREAK
PROBABLY EXISTS. FAIRLY STRONG UPPER LVL DVG EXISTS OVER NE ID/SW MT
PER STLT WINDS OWING TO THE INFLUENCE OF THE BC/NW WA CIRCULATION. IR
IMAGERY HAS SHOWN FASTEST COOLING OF CLOUD TOPS ALONG THE W/NWRN EDGE OF
THE NWWD PIVOTING BAROCLINIC LEAF WHICH SHOULD ANGLE ITSELF SLIGHTLY MORE
N-S OVER THE NEXT 6 HRS. LOOKING AT LATEST VIS IMAGES..CNVTN HAS FORMED
IN THE UNSTABLE AREAS IN THE WARM SECTOR OF N CENTRAL ID SFC LOW FLOWING
N/NEWD FROM NE NV ACROSS THE SAWTOOTH MTNS AND ERN ID INTO SW MT WHERE IT
MEETS MUCH COLDER AIR ADVECTING SWD FROM CANADA. IT IS HERE THAT PROBLEMS
ASSCD WITH SNOWFALL MAY DVLP AS EXPECT HEAVIEST SNOW FOR NEXT FEW HRS
TO BE FROM JUST W OF KHLN TO NEAR KGTF NEWD TWDS CANADIAN STN CWOE. SFC
TEMP MAY BE A LITTLE WARM ON WRN SIDE OF THE ROCKIES IN NW MT FOR SNOW AT
THIS TIME..AS KMSO IS SITTING IN THE LOW-MID 40S FOR A SFC TEMP CURENTLY
AND COLDER AIR APPEARS TRAPPED MOSTLY E OF THE ROCKY MTNS CREST. SHOULD
SEE INCREASING SNOWFALL RATES THOUGH THROUGH THE EVENING AS ADDTL VORT
MAXES/JET STREAKS ROTATE AROUND UPPER LOW INTO THE INTER-MTN REGION.
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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 4972 11343 4949 10737 4427 11185 4355 11451 4504 11575
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