SWOMCD
SPC MCD 021745 COR
TXZ000-021845-
MESOSCALE DISCUSSION 0647
NWS STORM PREDICTION CENTER NORMAN OK
1245 PM CDT WED MAY 02 2007
AREAS AFFECTED...PARTS OF W CNTRL INTO CNTRL TX
CONCERNING...SEVERE THUNDERSTORM WATCH 208...
VALID 021745Z - 021845Z
CORRECTED FOR WW NUMBER IN SECOND LINE.
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 208
CONTINUES.
A NEW TORNADO WATCH IS BEING ISSUED INCLUDING AREAS EAST OF WW 208.
EVOLVING MESOSCALE CONVECTIVE SYSTEM CONTINUES SLOW EAST/
SOUTHEASTWARD DEVELOPMENT TOWARD ABILENE...SAN ANGELO AND AREAS
NORTHWEST OF DEL RIO. SURFACE COLD SURGE IS ONGOING THROUGH MUCH OF
WEST TEXAS IN THE WAKE OF THIS FEATURE...AND MAY BE ADVANCING A BIT
AHEAD OF INTENSE LEADING LINE OF STORMS. LIGHTNING TRENDS SUGGEST
THAT MOST VIGOROUS RECENT DEVELOPMENT IS SHIFTING TO THE SOUTHWEST
OF SAN ANGELO...ALONG INTERSECTION OF ADVANCING COLD FRONT AND THE
WESTERN EDGE OF A LINGERING COLD POCKET ACROSS THE TEXAS HILL
COUNTRY. THIS COLD POCKET PROVIDES SOME UNCERTAINTY CONCERNING THE
EVOLUTION OF CONVECTIVE SYSTEM THROUGH 20-21Z...BUT THE AIR MASS IS
VERY MOIST...AND BREAKS IN CLOUD COVER MAY FINALLY ALLOW FOR
INCREASING SURFACE HEATING/DESTABILIZATION THIS AFTERNOON.
BOUNDARY LAYER AIR MASS TO THE NORTH OF SAN ANGELO...INTO THE
ABILENE AND BROWNWOOD AREAS HAS BEEN ABLE TO WARM/DESTABILIZATION
..AND OFFERS BETTER POTENTIAL FOR STRONG/SEVERE STORMS NEXT FEW
HOURS. OTHERWISE...MOST VIGOROUS STORMS MAY CONTINUE TO DEVELOP
SOUTH SOUTHEASTWARD ALONG INSTABILITY AXIS ALONG THE RIO GRANDE
RIVER.
.KERR.. 05/02/2007
..PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...FWD...EWX...SJT...MAF...
32550034 32569868 31729802 31049850 30339857 29229880
28839980 28690067 29300149 29890189 30280243 31000192
31220120
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