1 / 4

Development of low clouds and fog…

AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GRAND JUNCTION CO 944 PM MST SAT NOV 30 2013 .UPDATE... ISSUED AT 940 PM MST SAT NOV 30 2013

tamika
Download Presentation

Development of low clouds and fog…

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GRAND JUNCTION CO 944 PM MST SAT NOV 30 2013 .UPDATE... ISSUED AT 940 PM MST SAT NOV 30 2013 HAVE ADJUSTED AREAS OF FOG FOR TONIGHT THROUGH SUNDAY WITH FOG MAINLY IN THE VALLEY BOTTOMS AND ALONG THE SLOPES OF THE WESTERN MOUNTAINS. SOUNDINGS OVER THE LAST 36HRS AT GJT SHOW THE STRATUS LAYER NEAR 7500FT SO HAVE ADDED FOG TO THE SLOPES DEFINED BY 7-8KFT. THE NEW NAM IS NOT RECOGNIZING THE BOUNDARY LAYERFOGSO ITS FORECAST TEMPS ARE TOO HIGH FOR THE WESTERN VALLEY SITES. AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE ALBUQUERQUE NM 325 PM MST SUN DEC 1 2013... MAIN FORECAST CHALLENGE IN THE SHORT-TERM CONTINUES TO BE NAILING DOWN WHEN THE PERSISTENT LOW CLOUD DECK OVER NW AND WEST CENTRAL NM WILL SCOUR OUT OF THE AREA. THE VAST MAJORITY OF MODEL GUIDANCE DID NOT SHOW THESE CLOUDS CONTINUING TO PLAGUE THE AREA TODAY BUT ALAS THEY ARE STILL HOLDING STRONG. THE RUC13 WAS THE BEST TO HOLD ONTO SATURATION IN THE NEAR SURFACE LAYER AND INDICATIONS ARE THAT IT WILL CONTINUE TONIGHT AND EARLY MONDAY. WINDS ALOFT AND EVEN AT THE SURFACE ARE INCREASING HOWEVER IT IS POSSIBLE THE THICK/PERSISTENT LOW CLOUD DECK IS FEEDING BACK TO STRENGTHEN LOW LEVEL INVERSIONS AND KEEP A VERY SHALLOW BOUNDARY LAYER DECOUPLED.

  2. Development of low clouds and fog… Nov 28 2103 Nov25 2013

  3. Low clouds ‘filling in’ basins Dec 1 2103 Nov 30 2013

  4. NAM 12Z 1 Dec F000 GJT GFS 12Z 1 Dec F000 GJT

More Related