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MESOSCALE DISCUSSION 1086
NWS STORM PREDICTION CENTER NORMAN OK
0756 PM CDT FRI JUN 12 2009
AREAS AFFECTED...ERN CO...W-CNTRL KS
CONCERNING...SEVERE THUNDERSTORM WATCH 392...
VALID 130056Z - 130200Z
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 392
CONTINUES.
AN ISOLATED SEVERE HAIL/WIND THREAT CONTINUES PRIMARILY OVER E-CNTRL
CO ALONG A COMPOSITE OUTFLOW/CONFLUENCE AXIS. THIS THREAT SHOULD
EXTEND BRIEFLY INTO W-CNTRL KS...BUT OVERALL POTENTIAL MAY NOT
WARRANT THE NEED FOR AN ADDITIONAL WW.
RECENT RADAR/VISIBLE SATELLITE IMAGERY DEPICT A SERIES OF DISCRETE
CONVECTIVE CELLS GRADUALLY PROPAGATING EWD FROM EL PASO TO CHEYENNE
COUNTIES IN CO...ALONG AND JUST N OF A COMPOSITE
OUTFLOW/LONGER-LIVED CONFLUENCE AXIS. THE LEAD CELL HAS EXHIBITED
MORE INTENSE SUPERCELLULAR CHARACTERISTICS AND BASED ON CURRENT
TRACK SHOULD REACH THE CO/KS BORDER BETWEEN 02-03Z. OVERALL SEVERE
THREAT E OF WW 392 SHOULD BE RATHER SHORT-LIVED WITH THE ONSET OF
NOCTURNAL COOLING AND PRESENCE OF MODEST HIGH-LEVEL LAPSE RATES /AS
SAMPLED BY 00Z DDC RAOB/. WITH SYNOPTIC-SCALE UPPER-LEVEL RIDGING
FORECAST TO STRENGTHEN THROUGH THE EVENING AS WEST COAST TROUGH
DEEPENS...DECREASING COVERAGE AND WEAKENING TENDENCY OF CONVECTION
IS EXPECTED AFTER SUNSET.
..GRAMS.. 06/13/2009
ATTN...WFO...LBF...DDC...GLD...PUB...BOU...ABQ...
LAT...LON 36980514 37320503 37820436 37820507 38400495 39080502
39130531 40020500 40960495 40990200 37000202 36980514
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