SOUTHWEST IDAHO/SOUTHEAST OREGON AREA FORECAST DISCUSSION...COR
NWS BOISE IDAHO
AFDPIH 945 AM MDT TUE MAY 2 2000
NO UPDATES NEEDED SO FAR BUT WILL MONITOR WEST CENTRAL AND BOI MTNS
FOR CONTINUED SHOWERS UNDER UPR TROF PASSAGE. MODIFIED 12Z BOI/MFR
SOUNDINGS AND ETA FORECAST 00ZMAY3 SOUNDINGS SHOW STEEP LAPSE RATES
WITH 300-600 CAPE AND -2/-3 LIS BUT WITH LITTLE MID LEVEL MOISTURE.
UPPER AIR TROF PASSAGE EXPECTED LATE MORNING-AFTERNOON AND PRES
RISES BEHIND FRONT OVER SW ID SHIFTING THRU TWF AREA EARLY THIS AFTN
FOR GUSTY BREEZY WINDS THERE. FSL ACARS SOUNDING NEAR BOI AND
MODIFIED MFR SOUNDING SHOWS DEVELOPING CAP ABOUT 700 MBS...-1.6C BOI
RAOB TO -2.5C MFR RAOB AND SLC-BOI DESCENT/COR/ FLIGHT...LIMITING
CHCS OF TSTMS IN SPITE OF DECENT INSTABILITY AND LIFTING TRIGGER.
MORE MOISTURE IN ID MTNS BUT BECOMING CAPPED. TEMPS RSNBL AS SPRING
SUNSHINE GIVES DIURNAL RANGES ABOUT 20F.
.BOI...NONE.
SOUTHEAST IDAHO AREA FORECAST DISCUSSION
NWS POCATELLO/IDAHO FALLS ID
AFDPIH 930 AM MDT TUE MAY 02 2000
SHORTWAVE CURRENTLY IN CENTRAL ID PRODUCING VERY LITTLE SHOWER
ACTIVITY. ISOLD LIGHT SHOWERS DEPICTED ON 88D OVER CENTRAL ID MTN
ZONES. WAVE ON TRACK TO LIFT NORTHEAST DURING THE DAY...WITH SOME
CLEARING EXPECTED ALONG ITS BACK EDGE. TRAILING WEAK COOL FRONT WILL
MOVE ACROSS CWA TODAY. WINDS PICKING UP ALREADY ALONG UPPER SNAKE
PLAINS ALONG SOUTHERN HIGHLANDS (PIH...FOR EXAMPLE). THESE WINDS WILL
CONTINUE TO INCREASE FURTHER NORTH EXTENDING TO UPPER SNAKE PLAINS BY
THE AFTERNOON. TEMPS DOWN A FEW DEGREES TODAY WITH LOWER THICKNESSES.
WILL BUMP UP WINDS IN VALLEY ZONES AND SHOW A DECREASING CLOUD TREND.
OTHERWISE...ZONES LOOK GOOD. WAW
BYI 77/45/82 000
.KSFX 88D...OPERATIONAL...VCP 32.
.PIH...NONE
PIH BB 075/040 080/047 076 08000