Post by Randy - Brandon, MS on Jan 18, 2009 7:34:14 GMT -6
Some good stuff from Jackson:
If this shortwave can dig just a little bit...
MON NIGHT HAS MUCH MORE INTERESTING AS ALL GUID IS NOW SHOWING A
VERY INTENSE S/W DROP SOUTHWARD ON THE BACK SIDE OF THE LARGE
EASTERN TROUGH. THIS S/W WILL HAVE VERY LOW MID LEVEL HGTS WITH THE
NE PORTION OF THE CWA SEEING VALUES < 540M. THOSE ANOMALOUS HGTS ARE
SOME 2 TO 3.5 STANDARD DEVIATIONS BELOW CLIMO. ADDITIONALLY...MID
LEVEL WINDS WILL RANGE FROM 100-125KTS AT 500MB. THE CENTER OF THIS
S/W WILL BE VERY EFFICIENT AT SQUEEZING OUT ANY AVAILABLE MOISTURE
AND THE SEEMS TO BE DECENT LOW LEVEL MOISTURE ACROSS THE NE HALF OF
THE CWA BETWEEN MIDNIGHT AND NOON TUE. THE RESULT WILL BE -SN AND
FLURRIES GENERALLY FROM A GREENWOOD TO MERIDIAN LINE. BEST TIMING
FOR THIS WILL BE BETWEEN 3-9AM. AT THIS TIME...VERY LITTLE TO NO
ACCUM IS EXPECTED. HOWEVER...WE WILL HAVE TO KEEP A CLOSE EYE ON
THIS B/C IF GOOD MOISTURE CAN EXIST UP TO 700MB...THEN THERE WILL BE
A WINDOW OF TIME ACROSS THE NE COUPLE COUNTIES THAT EXPERIENCE
BETTER SNOW RATES. WITH THE WINDOW OF TIME BEING RATHER SHORT WHERE
THE DEEPEST MOISTURE MAY BE PRESENT...I WILL NOT CARRY -SN FOR TOO
LONG INTO THE TUE PERIOD. THERE DOES LOOK TO BE SUFFICIENT LOW LEVEL
MOISTURE TO KEEP A DECENT STRATO CU DECK AROUND...ESPECIALLY ACROSS
THE E HALF. ADDITIONALLY...STRONG CAA WILL BE OCCURRING AS THE
REGION WILL BE UNDER -3 TO -6C 925MB TEMPS. TEMPS AT 850MB WILL BE
RATHER CHILLY AS WELL AND RUN BETWEEN -6 AND -11C ON TUE. THESE
VALUES ARE SOME 2 TO 3 STANDARD DEVIATIONS BELOW CLIMO VALUES. GUID
HIGH TEMPS ARE MUCH COOLER THAN PREV RUNS AND I HAVE EVEN CUT A FEW
MORE...ESPECIALLY NE/E TO FIT THE LONGER DURATION OF LOW CLOUDS.
Whether it snows or not, Tuesday looks chilly!
If this shortwave can dig just a little bit...
MON NIGHT HAS MUCH MORE INTERESTING AS ALL GUID IS NOW SHOWING A
VERY INTENSE S/W DROP SOUTHWARD ON THE BACK SIDE OF THE LARGE
EASTERN TROUGH. THIS S/W WILL HAVE VERY LOW MID LEVEL HGTS WITH THE
NE PORTION OF THE CWA SEEING VALUES < 540M. THOSE ANOMALOUS HGTS ARE
SOME 2 TO 3.5 STANDARD DEVIATIONS BELOW CLIMO. ADDITIONALLY...MID
LEVEL WINDS WILL RANGE FROM 100-125KTS AT 500MB. THE CENTER OF THIS
S/W WILL BE VERY EFFICIENT AT SQUEEZING OUT ANY AVAILABLE MOISTURE
AND THE SEEMS TO BE DECENT LOW LEVEL MOISTURE ACROSS THE NE HALF OF
THE CWA BETWEEN MIDNIGHT AND NOON TUE. THE RESULT WILL BE -SN AND
FLURRIES GENERALLY FROM A GREENWOOD TO MERIDIAN LINE. BEST TIMING
FOR THIS WILL BE BETWEEN 3-9AM. AT THIS TIME...VERY LITTLE TO NO
ACCUM IS EXPECTED. HOWEVER...WE WILL HAVE TO KEEP A CLOSE EYE ON
THIS B/C IF GOOD MOISTURE CAN EXIST UP TO 700MB...THEN THERE WILL BE
A WINDOW OF TIME ACROSS THE NE COUPLE COUNTIES THAT EXPERIENCE
BETTER SNOW RATES. WITH THE WINDOW OF TIME BEING RATHER SHORT WHERE
THE DEEPEST MOISTURE MAY BE PRESENT...I WILL NOT CARRY -SN FOR TOO
LONG INTO THE TUE PERIOD. THERE DOES LOOK TO BE SUFFICIENT LOW LEVEL
MOISTURE TO KEEP A DECENT STRATO CU DECK AROUND...ESPECIALLY ACROSS
THE E HALF. ADDITIONALLY...STRONG CAA WILL BE OCCURRING AS THE
REGION WILL BE UNDER -3 TO -6C 925MB TEMPS. TEMPS AT 850MB WILL BE
RATHER CHILLY AS WELL AND RUN BETWEEN -6 AND -11C ON TUE. THESE
VALUES ARE SOME 2 TO 3 STANDARD DEVIATIONS BELOW CLIMO VALUES. GUID
HIGH TEMPS ARE MUCH COOLER THAN PREV RUNS AND I HAVE EVEN CUT A FEW
MORE...ESPECIALLY NE/E TO FIT THE LONGER DURATION OF LOW CLOUDS.
Whether it snows or not, Tuesday looks chilly!
Locked previous winter diso thread and stickied this one.
