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SATELLITE PRECIPITATION ESTIMATES..DATE/TIME 07/24/07 2246Z
SATELLITE ANALYSIS BRANCH/NESDIS---NPPU---TEL.301-763-8678
LATEST DATA USED: GOES-11: 2230Z	DS
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LOCATION...NW ARIZONA...SW UTAH...S NEVADA...SE CALIFORNIA...
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ATTN WFOS...FGZ...SLC...VEF...
ATTN RFCS...CBRFC...CNRFC...
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EVENT...NEARLY STNRY WARM TOP CELLS ALONG CA/NV BORDER
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SATELLITE ANALYSIS AND TRENDS...WARM TOP CELLS OF ONLY -54C ARE POSITIONED
ALONG THE CLARK COUNTY-NV/SAN BERNARDINO COUNTY-CA BORDER AND HAVE NOT
SHOWN MUCH MOVEMENT SINCE FORMING AROUND 2100Z. DUE TO THE WARM TOP
NATURE OF THE STORMS..AUTOMATED STLT ESTIMATES ARE VERY POOR. MANUEL
ESTIMATES GIVE BETWEEN .4-.6" FOR THE 21-22Z PERIOD WITH ANOTHER .3-.5"
HAVING FALLEN SINCE. IF THESE CELLS CONTINUE TO SHOW LITTLE MOVEMENT..SOME
FF PROBLEMS MAY ARISE. LIs PER GOES SOUNDER HAVE BECOME UNSTABLE ON THE
ORDER OF -6 TO -7 AND 1.5" PW VALUES OVER THE LAS VEGAS AREA WILL PROVIDE
ENOUGH MOISTURE TO PRODUCE MOD TO HVY RAINFALL. OBJECTIVE ANALYSIS REVEALS
A THETA-E MAX OVER SRN NV WITH THE AXIS OF BEST INSTABILITY/MOISTURE
STRETCHING FROM SE NV/SW UT THROUGH W AZ TO S CENTRAL AZ. OUTFLOW FROM
THE CELLS IN NW AZ IS MOVING TWDS THE CELLS IN CLARK COUNTY AND WILL
LIKELY ENHANCE THEM. JUST IN 2230Z IMAGE SHOWS CLOUD TOP TEMPS ARE NOW
AT -61C AND EXPANDING.

AUTOMATED ESTIMATES ARE MUCH BETTER FOR THE STORMS IN NW AZ DUE TO THEIR
COLD CLOUD TOPS. ALONG THE MOHAVE/COCONINO BORDER ESTIMATES SHOW 1-1.5"
AMOUNTS FROM NE MOHAVE ALONG THE BORDER TO EXTREME NW YAVAPAI WITH A
1.8" MAX. THIS CLUSTER OF STORMS IS MOVING NWD INTO SW UT AND EXPECT IT
IS PRODUCING RAINRATES BETWEEN 1-1.5"/HR WITH CLOUD TOPS OF -67C. WILL
CONTINUE TO MONITOR.
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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 3790 11374 3657 11252 3478 11564 3564 11648
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