179 ACUS3 KMKC 031936 SWOMCD MKC MCD 031936 COZ000-030000- SPC MESOSCALE DISCUSSION 0640 FOR THE HIGHER ELEVATIONS OF SWRN/SCENTRAL CO INCLUDING THE SAN JUAN MTNS CONCERNING...HEAVY SNOW AND NEAR BLIZZARD CONDITIONS... HEAVY SNOWFALL WILL CONTINUE TO DEVELOP OVER PORTIONS OF CENTRAL AND SWRN COLORADO THROUGH THE REMAINDER OF THE AFTERNOON HOURS...LASTING WELL AFTER 04/00Z OVER MUCH OF THE AREA. SNOWFALL RATES UP TO 2 INCHES PER HOUR WILL BE POSSIBLE IN HEAVIER CONVECTIVE SNOWBURSTS. STRONG SLY WINDS OF 40 TO 60 MPH WILL BE POSSIBLE ALONG SLY FACING MTN SLOPES/PASSES..CREATING WIDESPREAD BLOWING AND DRIFTING SNOW AND NEAR BLIZZARD CONDITIONS. LATEST SATELLITE IMAGERY CONTINUES TO SHOW WELL DEVELOP MID LEVEL BAROCLINIC BAND EXTENDING N-S FROM NWRN NM ACROSS WRN COLORADO. WV IMAGERY INDICATES THAT MID-UPPER LEVEL SPEED MAX OVER CENTRAL AZ WAS ROTATING AROUND SERN PERIPHERY OF UPPER LOW LOCATED OVER SRN UTAH. STRONG UPPER LEVEL DIVERGENCE IN ASSOCIATION WITH THIS FEATURE...ALONG WITH MID LEVEL FRONTOGENETICAL FORCING WILL AID IN CONTINUED DEVELOPMENT OF HEAVY SNOWFALL ACROSS THE WRN PORTIONS OF THE COLORADO ROCKIES THROUGH THE REST OF THE AFTERNOON INTO THE EVENING HOURS. STRONG UPPER LEVEL LIFT/STEEP MID LEVEL LAPSE RATES WERE FURTHER SUPPORTED BY SCT LIGHTNING STRIKES THAT HAVE DEVELOPED OVER THE NRN SAN JUAN MTNS IN THE LAST HOUR. STRONGEST OROGRAPHIC LIFT/STEEPEST MID LEVEL LAPSE RATES WILL BE A MAJOR CONTRIBUTOR TO THE HEAVIEST SNOWFALL RATES ACROSS THE SAN JUAN MTNS...WHERE RATES COULD APPROACH 2 INCHES PER HOUR IN HEAVIER SNOWBURTS. SNOW ELEVATIONS SHOULD CONTINUE TO RANGE FROM 5500 TO 6500 FT. ..CROSBIE.. 05/03/01 ...PLEASE SEE WWW.SPC.NOAA.GOV/ FOR GRAPHIC PRODUCT...  179 ACUS3 KMKC 031936 SWOMCD MKC MCD 031936 COZ000-030000- SPC MESOSCALE DISCUSSION 0640 FOR THE HIGHER ELEVATIONS OF SWRN/SCENTRAL CO INCLUDING THE SAN JUAN MTNS CONCERNING...HEAVY SNOW AND NEAR BLIZZARD CONDITIONS... HEAVY SNOWFALL WILL CONTINUE TO DEVELOP OVER PORTIONS OF CENTRAL AND SWRN COLORADO THROUGH THE REMAINDER OF THE AFTERNOON HOURS...LASTING WELL AFTER 04/00Z OVER MUCH OF THE AREA. SNOWFALL RATES UP TO 2 INCHES PER HOUR WILL BE POSSIBLE IN HEAVIER CONVECTIVE SNOWBURSTS. STRONG SLY WINDS OF 40 TO 60 MPH WILL BE POSSIBLE ALONG SLY FACING MTN SLOPES/PASSES..CREATING WIDESPREAD BLOWING AND DRIFTING SNOW AND NEAR BLIZZARD CONDITIONS. LATEST SATELLITE IMAGERY CONTINUES TO SHOW WELL DEVELOP MID LEVEL BAROCLINIC BAND EXTENDING N-S FROM NWRN NM ACROSS WRN COLORADO. WV IMAGERY INDICATES THAT MID-UPPER LEVEL SPEED MAX OVER CENTRAL AZ WAS ROTATING AROUND SERN PERIPHERY OF UPPER LOW LOCATED OVER SRN UTAH. STRONG UPPER LEVEL DIVERGENCE IN ASSOCIATION WITH THIS FEATURE...ALONG WITH MID LEVEL FRONTOGENETICAL FORCING WILL AID IN CONTINUED DEVELOPMENT OF HEAVY SNOWFALL ACROSS THE WRN PORTIONS OF THE COLORADO ROCKIES THROUGH THE REST OF THE AFTERNOON INTO THE EVENING HOURS. STRONG UPPER LEVEL LIFT/STEEP MID LEVEL LAPSE RATES WERE FURTHER SUPPORTED BY SCT LIGHTNING STRIKES THAT HAVE DEVELOPED OVER THE NRN SAN JUAN MTNS IN THE LAST HOUR. STRONGEST OROGRAPHIC LIFT/STEEPEST MID LEVEL LAPSE RATES WILL BE A MAJOR CONTRIBUTOR TO THE HEAVIEST SNOWFALL RATES ACROSS THE SAN JUAN MTNS...WHERE RATES COULD APPROACH 2 INCHES PER HOUR IN HEAVIER SNOWBURTS. SNOW ELEVATIONS SHOULD CONTINUE TO RANGE FROM 5500 TO 6500 FT. ..CROSBIE.. 05/03/01 ...PLEASE SEE WWW.SPC.NOAA.GOV/ FOR GRAPHIC PRODUCT...  674 ACUS3 KMKC 031936 SWOMCD MKC MCD 031936 COZ000-030000- SPC MESOSCALE DISCUSSION 0640 FOR THE HIGHER ELEVATIONS OF SWRN/SCENTRAL CO INCLUDING THE SAN JUAN MTNS CONCERNING...HEAVY SNOW AND NEAR BLIZZARD CONDITIONS... HEAVY SNOWFALL WILL CONTINUE TO DEVELOP OVER PORTIONS OF CENTRAL AND SWRN COLORADO THROUGH THE REMAINDER OF THE AFTERNOON HOURS...LASTING WELL AFTER 04/00Z OVER MUCH OF THE AREA. SNOWFALL RATES UP TO 2 INCHES PER HOUR WILL BE POSSIBLE IN HEAVIER CONVECTIVE SNOWBURSTS. STRONG SLY WINDS OF 40 TO 60 MPH WILL BE POSSIBLE ALONG SLY FACING MTN SLOPES/PASSES..CREATING WIDESPREAD BLOWING AND DRIFTING SNOW AND NEAR BLIZZARD CONDITIONS. LATEST SATELLITE IMAGERY CONTINUES TO SHOW WELL DEVELOP MID LEVEL BAROCLINIC BAND EXTENDING N-S FROM NWRN NM ACROSS WRN COLORADO. WV IMAGERY INDICATES THAT MID-UPPER LEVEL SPEED MAX OVER CENTRAL AZ WAS ROTATING AROUND SERN PERIPHERY OF UPPER LOW LOCATED OVER SRN UTAH. STRONG UPPER LEVEL DIVERGENCE IN ASSOCIATION WITH THIS FEATURE...ALONG WITH MID LEVEL FRONTOGENETICAL FORCING WILL AID IN CONTINUED DEVELOPMENT OF HEAVY SNOWFALL ACROSS THE WRN PORTIONS OF THE COLORADO ROCKIES THROUGH THE REST OF THE AFTERNOON INTO THE EVENING HOURS. STRONG UPPER LEVEL LIFT/STEEP MID LEVEL LAPSE RATES WERE FURTHER SUPPORTED BY SCT LIGHTNING STRIKES THAT HAVE DEVELOPED OVER THE NRN SAN JUAN MTNS IN THE LAST HOUR. STRONGEST OROGRAPHIC LIFT/STEEPEST MID LEVEL LAPSE RATES WILL BE A MAJOR CONTRIBUTOR TO THE HEAVIEST SNOWFALL RATES ACROSS THE SAN JUAN MTNS...WHERE RATES COULD APPROACH 2 INCHES PER HOUR IN HEAVIER SNOWBURTS. SNOW ELEVATIONS SHOULD CONTINUE TO RANGE FROM 5500 TO 6500 FT. ..CROSBIE.. 05/03/01 ...PLEASE SEE WWW.SPC.NOAA.GOV/ FOR GRAPHIC PRODUCT...  674 ACUS3 KMKC 031936 SWOMCD MKC MCD 031936 COZ000-030000- SPC MESOSCALE DISCUSSION 0640 FOR THE HIGHER ELEVATIONS OF SWRN/SCENTRAL CO INCLUDING THE SAN JUAN MTNS CONCERNING...HEAVY SNOW AND NEAR BLIZZARD CONDITIONS... HEAVY SNOWFALL WILL CONTINUE TO DEVELOP OVER PORTIONS OF CENTRAL AND SWRN COLORADO THROUGH THE REMAINDER OF THE AFTERNOON HOURS...LASTING WELL AFTER 04/00Z OVER MUCH OF THE AREA. SNOWFALL RATES UP TO 2 INCHES PER HOUR WILL BE POSSIBLE IN HEAVIER CONVECTIVE SNOWBURSTS. STRONG SLY WINDS OF 40 TO 60 MPH WILL BE POSSIBLE ALONG SLY FACING MTN SLOPES/PASSES..CREATING WIDESPREAD BLOWING AND DRIFTING SNOW AND NEAR BLIZZARD CONDITIONS. LATEST SATELLITE IMAGERY CONTINUES TO SHOW WELL DEVELOP MID LEVEL BAROCLINIC BAND EXTENDING N-S FROM NWRN NM ACROSS WRN COLORADO. WV IMAGERY INDICATES THAT MID-UPPER LEVEL SPEED MAX OVER CENTRAL AZ WAS ROTATING AROUND SERN PERIPHERY OF UPPER LOW LOCATED OVER SRN UTAH. STRONG UPPER LEVEL DIVERGENCE IN ASSOCIATION WITH THIS FEATURE...ALONG WITH MID LEVEL FRONTOGENETICAL FORCING WILL AID IN CONTINUED DEVELOPMENT OF HEAVY SNOWFALL ACROSS THE WRN PORTIONS OF THE COLORADO ROCKIES THROUGH THE REST OF THE AFTERNOON INTO THE EVENING HOURS. STRONG UPPER LEVEL LIFT/STEEP MID LEVEL LAPSE RATES WERE FURTHER SUPPORTED BY SCT LIGHTNING STRIKES THAT HAVE DEVELOPED OVER THE NRN SAN JUAN MTNS IN THE LAST HOUR. STRONGEST OROGRAPHIC LIFT/STEEPEST MID LEVEL LAPSE RATES WILL BE A MAJOR CONTRIBUTOR TO THE HEAVIEST SNOWFALL RATES ACROSS THE SAN JUAN MTNS...WHERE RATES COULD APPROACH 2 INCHES PER HOUR IN HEAVIER SNOWBURTS. SNOW ELEVATIONS SHOULD CONTINUE TO RANGE FROM 5500 TO 6500 FT. ..CROSBIE.. 05/03/01 ...PLEASE SEE WWW.SPC.NOAA.GOV/ FOR GRAPHIC PRODUCT...