DAY 1 CONVECTIVE OUTLOOK NWS STORM PREDICTION CENTER NORMAN OK 0730 AM CDT SUN APR 06 2014 VALID 061300Z - 071200Z ...THERE IS A SLGT RISK OF SVR TSTMS FROM CNTRL AND E TX INTO THE LWR MS VLY/CNTRL GULF CST REGION... ...SYNOPSIS... PROGRESSIVE SPLIT FLOW WILL CONTINUE THIS PERIOD...DOWNSTREAM FROM AMPLIFYING E PACIFIC RIDGE. THE RIDGE SHOULD ADVANCE EWD TO THE W CST BY 12Z MON AS DOWNSTREAM TROUGH NOW OVER NM AND NRN SONORA/CHIHUAHUA ARCS ENE INTO ERN AR AND THE ARKLATEX. AT THE SFC...WEAK LOW NOW FORMING ALONG STALLED FRONT OVER THE S TX GULF CST SHOULD TRACK NE ALONG THE TX GULF CSTL PLN TODAY...AND INTO SW LA THIS EVE. APPROACH OF NM UPR TROUGH SHOULD ALLOW THE LOW TO DEEPEN AND ACCELERATE NNEWD TNGT/EARLY MON...WITH THE LOW REACHING WRN TN BY THE END OF THE PERIOD. PERSISTENT S TO SWLY LWR TROPOSPHERIC FLOW E OF THE LOW SHOULD PROMOTE NWD ADVANCE OF ASSOCIATED WARM FRONT NOW OVER THE NWRN GULF CSTL WATERS INTO SRN/ERN LA...CNTRL MS...AND WRN/SRN AL LATER TODAY THROUGH TNGT. STRENGTHENING WAA/MOISTURE TRANSPORT AHEAD OF APPROACHING UPR TROUGH IS LIKELY TO FOSTER WIDESPREAD COVERAGE OF ELEVATED TSTMS N OF WARM FRONT FROM CNTRL AND E TX EWD INTO THE LWR MS VLY. SOME OF THE STORMS COULD YIELD LARGE HAIL. LATER TODAY THROUGH EARLY MON...THIS ELEVATED ACTIVITY WILL BE ACCOMPANIED BY INCREASING COVERAGE OF SFC-BASED STORMS ALONG AND E OF SFC LOW TRACK FROM SE TX INTO LA...MS....AND AL. GIVEN STRENGTH OF SHEAR AND AVAILABILITY OF RICH MOISTURE..SOME OF THE STORMS WILL BE CAPABLE OF TORNADOES...A FEW OF WHICH COULD BE STRONG.
dimanche 6 avril 2014
Apr 6, 2014 1300 UTC Day 1 Convective Outlook,,,,,,,,,,,,,,,,,,,,,,,http://www.spc.noaa.gov/products/outlook/day1otlk.html
SPC AC 061230
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