FORECAST DISCUSSION – From The Cal-U Weather Laboratory
Issued: 2135Z TUESDAY, NOVEMBER 03, 2009
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CURRENTLY AT THE CAL U WX CENTER IT IS 50F UNDER CLEAR SKIES WITH DEW POINT TEMPS AT 22F. WINDS ARE OUT OF THE NW AT 5-10 MPH WITH A CENTRAL PRESSURE OF 1022 MB. UPPER AIR AT 250 MB THERE IS A TROUGH DEEPENING OVER THE EASTERN HALF OF THE CONUS. THERE IS A SHORTWAVE OVER THE PACIFIC NW WHICH WILL GROW AND INTENSIFY. THERE ARE 110 KT JET STREAKS OVER SD,NE AND ALSO OVER N OH, N PA, AND UPSTATE NY. AT 500 MB THE TROUGH IS MORE APPARENT AS WELL AS THE UPPER LVL RIDGE MENTIONED BEFORE. SAT. IMAGERY VIS SHOW CLEARING OVER MOST OF THE CONUS WITH THE EXCEPTION OF A LINE OF CLOUDS OVER MN AND IA. THIS IS FROM THE COLD FRONT ASSOCIATED WITH A SURFACE LOW. IR SHOWS COOL CLOUD TOPS OVER THE STATES EXPERIENCING THE COLD FRONT WHICH INDICATES SEVERE WX. WV SHOWS MOIST AIR OVER MOST OF THE CONUS WITH THE EXCEPTION OF DRY SLOTS OVER THE EAST COAST WHICH EXTENDS INTO THE GULF STATES. COMP. RADAR INDICATES AREAS OF INTENSE REFLECTIVITY OVER MN, IA, AND WI. UPSTATE NY AND FL ARE EXPERIENCING SOME POP UP SHOWERS. SURFACE ANALYSIS AT THE SURFACE THERE IS A LOW OF 1014 MB OVER ND AND IS PROGRESSING EAST. A STRONG HIGH IS DOMIATING THE EASTERN CONUS WITH A CENTRAL PRESSURE OF 1024 MB. ANOTHER HIGH IS DEVELOPING OVER THE NW WHICH WILL INFLUENCE WEATHER IN THE UPCOMING DAYS. SURFACE STREAMLINES INDICATE THE LOCATION OF THE COLD FRONT BY THE AREA OF SURFACE CONVERGENCE THROUGH ND, SD, AND NE. THERE IS AN AREA OF WEAK DIVERGENCE OVER THE NW ASSOCIATED WITH THE DEVELOPING HIGH. EXTENDED FORECAST HIGH PRESSURE WILL MOVE INTO THE AREA WED BRINGING MORE DRY AIR INTO THE FA. A CHANCE OF PRECIP WILL MOVE IN FOR THURS EVENING. BUT ANOTHER HIGH PRESSURE SYSTEM WILL BRING MORE SEASONAL TEMPS AND PLEASANT WEATHER TO THE FA FOR THE WEEKEND. NWS ADVISORIES/WATCHES/WARNINGS: NONE |
Prepared by: / milevoj / petrarca / gadeke / stewart / faas / hines / |


