Mar 1, 2006 1100 UTC Day 3 Severe Thunderstorm Outlook Updated: Wed Mar 1 07:33:36 UTC 2006 Probabilistic to Categorical Outlook Conversion Table (Effective Feb 14, 2006).
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SPC AC 010732 DAY 3 CONVECTIVE OUTLOOK NWS STORM PREDICTION CENTER NORMAN OK 0132 AM CST WED MAR 01 2006 VALID 031200Z - 041200Z ...NO SVR TSTM AREAS FORECAST... ...SYNOPSIS... HIGH AMPLITUDE FLOW REGIME WILL CONTINUE THROUGH THE END OF THE WEEK WITH A DEEPENING TROUGH ALONG THE EAST COAST AND A PERSISTENT TROUGH IN THE WEST. STRONGEST SHORTWAVE TROUGH WILL MIGRATE FROM CA/PAC NW COAST NEWD INTO THE NRN ROCKIES BY LATE FRI. AT THE SFC...FRONT THAT WILL SETTLE SWD INTO THE SRN PLAINS ON THU WILL REDEVELOP NWD AS A WARM FRONT ACROSS NWRN TX AND ERN NM DURING FRI. ...SRN HIGH PLAINS OF TX/NM... WARM ADVECTION REGIME ALREADY UNDERWAY LATE THU NIGHT/FRI WILL LIKELY BE SUPPORTING CLUSTERS OF ELEVATED TSTMS ACROSS PARTS OF W AND N TX/SRN OK. THESE STORMS MAY REINFORCE THE NW-SE ORIENTED BOUNDARY ACROSS N TX/ERN NM THROUGH THE DAY. TO THE S OF THE FRONT...BOUNDARY LAYER MOISTURE WILL CONTINUE TO INCREASE AS SELY FLOW BECOMES ESTABLISHED AHEAD OF THE WEST COAST TROUGH. STEEP LOW-LEVEL LAPSE RATES SHOULD DEVELOP ACROSS FAR W TX AND ERN NM DURING THE DAY. GIVEN MOISTENING UPSLOPE FLOW...TSTMS MAY DEVELOP ALONG THE HIGHER TERRAIN DURING THE AFTN AS CINH DECREASES AND LOW-AMPLITUDE SHORTWAVE TROUGHS MIGRATE NEWD FROM THE DESERT SW. GIVEN NEARLY 50 KTS OF H5 FLOW ATOP A VEERING LOW THROUGH MID-LEVEL PROFILE...IF A STORM CAN BECOME ESTABLISHED...SUPERCELLS WILL BE POSSIBLE WITH LARGE HAIL. THERE IS SOME UNCERTAINTY ON HOW MORNING CONVECTION WILL ALTER THE AIR MASS ACROSS THE REGION AND WILL PRECLUDE A CATEGORICAL SLGT RISK ATTM. BUT...WILL INTRODUCE LOW PROBABILITIES OF SEVERE. IF MODELS REMAIN CONSISTENT...LATER OUTLOOKS MAY NEED TO UPGRADE PARTS OF THE REGION. LATER FRI NIGHT...INCREASING WARM ADVECTION PROFILES WILL SUPPORT ELEVATED TSTMS FROM THE SRN HIGH PLAINS NEWD INTO THE CNTRL PLAINS. STRONGER TSTMS ACROSS ERN NM/N TX PNHDL MAY PRODUCE ISOLD LARGE HAIL. ..RACY.. 03/01/2006 CLICK TO GET WUUS03 PTSDY3 PRODUCT NOTE: THE NEXT DAY 3 OUTLOOK IS SCHEDULED BY 1100Z |