-
Posts
2,067 -
Joined
-
Last visited
-
Days Won
2
Content Type
Forums
Blogs
Gallery
Events
Learn About Weather and Meteorology
Community guides
Everything posted by fromey
-
Model Output Discussion - Christmas week and beyond
fromey replied to nick sussex's topic in Forecast Model Discussion
this is from the NOAA weather prediction centre, i have no idea what its saying or how it impacts us so.............. discuss Extended Forecast Discussion NWS Weather Prediction Center College Park MD 158 AM EST Tue Dec 20 2022 Valid 12Z Fri Dec 23 2022 - 12Z Tue Dec 27 2022 ...Guidance/Predictability Assessment... The 00Z model guidance suite has now come into better agreement on the expected synoptic scale set-up for the major Eastern U.S. low pressure system, and recent model trends have stabilized with a slight eastward adjustment in the placement of the low (12Z ECENS slightly northwest of 00z model consensus). Therefore, a general model compromise suffices as a starting point in the forecast process, even though some smaller mesoscale differences in the guidance remain. There also remains a good model signal for a better defined southern stream shortwave, with the CMC remaining most amplified with this feature as it drops southward over eastern Mexico. Towards the end of the forecast period, model depiction has improved with an amplifying trough across the Northeast Pacific early next week with the next storm system to affect the Pacific Northwest. However, there is more model spread with a trough building over the Midwest by next Tuesday, so more of the ensemble means were incorporated for days 6 and 7. -
Model Output Discussion - the cold has arrived
fromey replied to Community Team's topic in Forecast Model Discussion
thanks for that, looks to be a consensus which is never good! -
Model Output Discussion - the cold has arrived
fromey replied to Community Team's topic in Forecast Model Discussion
-
Model Output Discussion - the cold has arrived
fromey replied to Community Team's topic in Forecast Model Discussion
this is an excerpt from the extended forecast which Nick Sussex was on about Latest GFS runs are somewhat between established consensus and the western extremes. These differences lead into the significant spread for where potentially deep low pressure may develop/consolidate late in the week. The early part of the updated forecast started with a 06Z/00Z model composite with most weight on the 00Z ECMWF and least on the UKMET. Then the blend transitioned to greater emphasis on the 00Z ECMWF mean, last two ECMWF runs, and 00Z CMC/CMC mean with only modest incorporation of the 06Z GFS/GEFS mean. This solution led to the best continuity possible given the guidance spread. The new 12Z runs suggest that the "most likely" scenario could well change, depending on how the remainder of the 12Z ensemble suite turns out. i hope this makes sense -
Model Output Discussion - the cold has arrived
fromey replied to Community Team's topic in Forecast Model Discussion
To begin with, then they will switch around to the northwest -
Model Output Discussion - the cold has arrived
fromey replied to Community Team's topic in Forecast Model Discussion
they use the ECMWF generally its behind, i may be wrong -
Model Output Discussion - the cold has arrived
fromey replied to Community Team's topic in Forecast Model Discussion
Could we get a link up with the pacific and the greenland high?? -
Winter 2022/23 - Moans, Ramps & Chat
fromey replied to cyclonic happiness's topic in Spring Weather Discussion
Met office now have a cold action level 3 warning out, they issued a level 1 yesterday! That escalated quickly! -
Model Output Discussion - moving into Winter
fromey replied to Community Team's topic in Forecast Model Discussion
i would never have guest!!!! -
Model Output Discussion - moving into Winter
fromey replied to Community Team's topic in Forecast Model Discussion