Ensembleator
@ensembleator.bsky.social
Semi-retired meteorologist, living in lovely #YVR since 1994. I often write forecasts using abbreviations due to social media character limits. Dnt wry, U wll gt it.
#YVR undr a W flow, E of a re-formed rdg just offshr. Sfc and upr low 39N 137.5W edges sloly SE, pushing a wv dvlpg ~38N 126W to the NNE. Shwrs dvlpg this PM, hvy at times Sat AM as the wv lifts thru SWBC. Breezy/shwrs Sun as a vortmax 56N 161W tracks ESE, generates a deep low just off VI. Cool Mon
January 2, 2026 at 2:56 PM
#YVR undr a W flow, E of a re-formed rdg just offshr. Sfc and upr low 39N 137.5W edges sloly SE, pushing a wv dvlpg ~38N 126W to the NNE. Shwrs dvlpg this PM, hvy at times Sat AM as the wv lifts thru SWBC. Breezy/shwrs Sun as a vortmax 56N 161W tracks ESE, generates a deep low just off VI. Cool Mon
River otters out at Pitt Polder this afternoon
January 1, 2026 at 11:47 PM
River otters out at Pitt Polder this afternoon
HNY! Upr trof N-S now alg 140W anchored to an upr lo 37N 141W. Sly flow liftg a slug of elevated subtrop moisture N alg the cst. AM fog then vrbl skies w/shwrs late PM/eve #YVR. Most of Fri dry w/outflow. Rain Fri eve-Sun as the upr low lifts NE and inland by Sun AM, followed by a cool upr trof
January 1, 2026 at 4:03 PM
HNY! Upr trof N-S now alg 140W anchored to an upr lo 37N 141W. Sly flow liftg a slug of elevated subtrop moisture N alg the cst. AM fog then vrbl skies w/shwrs late PM/eve #YVR. Most of Fri dry w/outflow. Rain Fri eve-Sun as the upr low lifts NE and inland by Sun AM, followed by a cool upr trof
Fog at #YVR AP cancellg/delayg a large # of flts this AM. Fog thins ltr this AM. Maybe a few breaks ltr PM. Same AM pattern NYD but fog lifts/clds increase ltr as a deep trof N-S thru 150W lobs subtrop moisture ovr CA to the N. Rain by Fri PM, off/on thru Sun as the trof stalls to the SW. Mon dry.
December 31, 2025 at 2:44 PM
Fog at #YVR AP cancellg/delayg a large # of flts this AM. Fog thins ltr this AM. Maybe a few breaks ltr PM. Same AM pattern NYD but fog lifts/clds increase ltr as a deep trof N-S thru 150W lobs subtrop moisture ovr CA to the N. Rain by Fri PM, off/on thru Sun as the trof stalls to the SW. Mon dry.
Off the AU NW coast just now: Gravity wave propagating NNW at ~90 km/h. Don't think I've seen anything quite like it...
December 31, 2025 at 12:28 AM
Off the AU NW coast just now: Gravity wave propagating NNW at ~90 km/h. Don't think I've seen anything quite like it...
#YVR undr the WSW flow btn hi pressure over N CA and a sprawling upr/sfc low ovr the Gulf of AK w/a moist plume/fntl zn just to the NW. Areas of fog this AM otwz vrbl hi-mid cld skies. Same Wed-Thu. The W portion of the Gulf of AK upr low digs SE thru thr wk, lifting a low off S CA N for rain Fri
December 30, 2025 at 2:14 PM
#YVR undr the WSW flow btn hi pressure over N CA and a sprawling upr/sfc low ovr the Gulf of AK w/a moist plume/fntl zn just to the NW. Areas of fog this AM otwz vrbl hi-mid cld skies. Same Wed-Thu. The W portion of the Gulf of AK upr low digs SE thru thr wk, lifting a low off S CA N for rain Fri
After 10 hrs of freezing rain, it's not unusual to see wind observations disappear.
December 29, 2025 at 2:28 PM
After 10 hrs of freezing rain, it's not unusual to see wind observations disappear.
#YVR undr a moist Wly flow at the axis of a stg NNE-SSW upr rdg. Long wv trof ~150W. Fntl zone offshore weakens as it tracks NE twd the cst tdy. Upr rdg holds thru Thu as the long wv offshore slowly shifts E. Vrbl skies w/misty AMs thru NYD. Wetter, stormier, milder stretch begins Fri
December 29, 2025 at 2:21 PM
#YVR undr a moist Wly flow at the axis of a stg NNE-SSW upr rdg. Long wv trof ~150W. Fntl zone offshore weakens as it tracks NE twd the cst tdy. Upr rdg holds thru Thu as the long wv offshore slowly shifts E. Vrbl skies w/misty AMs thru NYD. Wetter, stormier, milder stretch begins Fri
Altostratus undulatus YVR in a “dramatic” enhancement. There’s quite a few bands out there at the moment
December 28, 2025 at 7:36 PM
Altostratus undulatus YVR in a “dramatic” enhancement. There’s quite a few bands out there at the moment
When you rely on a free, fully automated app for important weather, sometimes you get what you pay for:
December 28, 2025 at 5:18 PM
When you rely on a free, fully automated app for important weather, sometimes you get what you pay for:
#YVR under a moist stbl lo-lvl airmass w/an upr rdg axis just offshr. Mainly cldy tdy; cool. Vrbl skies, dry Mon-Tue, slightly warmer as the upr ridg axis shifts inland and the flow bcms SW. AM's could be quite misty. Chc shwrs Wed as a weak impulse Xs the SW cst. Rain NYD. Cooler chc shwrs Fri.
December 28, 2025 at 3:18 PM
#YVR under a moist stbl lo-lvl airmass w/an upr rdg axis just offshr. Mainly cldy tdy; cool. Vrbl skies, dry Mon-Tue, slightly warmer as the upr ridg axis shifts inland and the flow bcms SW. AM's could be quite misty. Chc shwrs Wed as a weak impulse Xs the SW cst. Rain NYD. Cooler chc shwrs Fri.
Tiny, shear-induced circulation this AM off the Sunshine Coast
December 27, 2025 at 6:23 PM
Tiny, shear-induced circulation this AM off the Sunshine Coast
Analysis of an rather undefined arctic front/outflow boundary over the Strait this AM #YVR. For a sharper feature we need deeper outflow which is not the case. Still, some local convergence over the Strait creating a few pop up shower/flurries, mainly over the water and touching EVI/Gulf Islands.
December 27, 2025 at 3:32 PM
Analysis of an rather undefined arctic front/outflow boundary over the Strait this AM #YVR. For a sharper feature we need deeper outflow which is not the case. Still, some local convergence over the Strait creating a few pop up shower/flurries, mainly over the water and touching EVI/Gulf Islands.
A cool AM in #YVR ( 1 to -2C) undr vrbly cloudy skies, outflow + a stable NW flow aloft, E of a rdg N-S @135W. More cloud than fcst. Dry, vrbl skies tdy. Vormax digs overhead this eve for xtra cld. Mainly cldy/milder Sun w/a chc of a PM shwr. Vrbl skies, dry Mon as the rdg rebounds ovhd. Same Tue
December 27, 2025 at 1:44 PM
A cool AM in #YVR ( 1 to -2C) undr vrbly cloudy skies, outflow + a stable NW flow aloft, E of a rdg N-S @135W. More cloud than fcst. Dry, vrbl skies tdy. Vormax digs overhead this eve for xtra cld. Mainly cldy/milder Sun w/a chc of a PM shwr. Vrbl skies, dry Mon as the rdg rebounds ovhd. Same Tue
A simplified analysis show the arctic frontal boundary across Srn BC this AM. Cold air poised to enter the Lower Mainland this evening for a short visit. Lows tmrw AM drop to the negative single digits early Sat AM (range -3 to -8C depending on local conditions). At least it's a dry cold :)
December 26, 2025 at 6:00 PM
A simplified analysis show the arctic frontal boundary across Srn BC this AM. Cold air poised to enter the Lower Mainland this evening for a short visit. Lows tmrw AM drop to the negative single digits early Sat AM (range -3 to -8C depending on local conditions). At least it's a dry cold :)
Upr trof movg inland this AM #YVR. Just N of VI there's a shallow convective low tracking SE along an arctic boundary. Rain ovnite has tapered to shwrs. Shwrs/wet flurries increase this PM as the arctic low arrives. Chilly w/increasing W wind tdy. Outflow/vry cool/🌞Sat. Vrbl skies, cool Sun, Mon
December 26, 2025 at 5:36 PM
Upr trof movg inland this AM #YVR. Just N of VI there's a shallow convective low tracking SE along an arctic boundary. Rain ovnite has tapered to shwrs. Shwrs/wet flurries increase this PM as the arctic low arrives. Chilly w/increasing W wind tdy. Outflow/vry cool/🌞Sat. Vrbl skies, cool Sun, Mon
Merry Xmas #YVR! Upr lo off N CA lofts a backdoor cold fnt N. Upr trof over SWYT digs SE, shifting thru thr LM tmrw PM. Stg upr ridge bulds in for Sat. Rain PM mxd at times w/wet ❄️ ovnite. Breezy 📦ing day w/shwrs taperg PM. Dry/cool Sat w/brsk outflow Vly. Clouds Sun as an AR stalls NW. Foggy Mon
December 25, 2025 at 3:24 PM
Merry Xmas #YVR! Upr lo off N CA lofts a backdoor cold fnt N. Upr trof over SWYT digs SE, shifting thru thr LM tmrw PM. Stg upr ridge bulds in for Sat. Rain PM mxd at times w/wet ❄️ ovnite. Breezy 📦ing day w/shwrs taperg PM. Dry/cool Sat w/brsk outflow Vly. Clouds Sun as an AR stalls NW. Foggy Mon
Vortmax 47N 126W. Oblong sfc low alg the OR cst; bth racing N. Rain w/brisk NW wind cst #YVR, brisk outflow Vly this AM. In the low's wake a Sly surge of wind dvlps in Puget Sound: may impact srn sxns metro Van+ Vly S of the Fraser this PM. Dry Xmas AM. Rain PM to❄️ ovnite. A stg cold fnt Bxng Day🍃
December 24, 2025 at 2:14 PM
Vortmax 47N 126W. Oblong sfc low alg the OR cst; bth racing N. Rain w/brisk NW wind cst #YVR, brisk outflow Vly this AM. In the low's wake a Sly surge of wind dvlps in Puget Sound: may impact srn sxns metro Van+ Vly S of the Fraser this PM. Dry Xmas AM. Rain PM to❄️ ovnite. A stg cold fnt Bxng Day🍃
#YVR undr a weakly unstbl SW flow E of an upr trof N-S along 137W. Shwrs AM dryish PM. Outflow dvlps Wed as a low tracks up the PNW cst and increases Thu w/the nxt low on a similar path. Sig mdl difs still. Shwrs Wed. Xmas AM dry w/some 🌞. Chc shwrs late PM. Chc flurries esp vly Fri w/a cold fnt
December 23, 2025 at 3:01 PM
#YVR undr a weakly unstbl SW flow E of an upr trof N-S along 137W. Shwrs AM dryish PM. Outflow dvlps Wed as a low tracks up the PNW cst and increases Thu w/the nxt low on a similar path. Sig mdl difs still. Shwrs Wed. Xmas AM dry w/some 🌞. Chc shwrs late PM. Chc flurries esp vly Fri w/a cold fnt
If you were wondering if it's wetter than av. #YVR, well, it is, somewhat. Normal Dec Precip at YVR AP 172.2mm, Harbour 199. Precip so far (Sea Island) 144.1 mm. Harbour: 216. A simple extrap would be 202 mm (AP) by year end, but there is another AR forming in the mdls for after Xmas so we'll see
December 22, 2025 at 4:13 PM
If you were wondering if it's wetter than av. #YVR, well, it is, somewhat. Normal Dec Precip at YVR AP 172.2mm, Harbour 199. Precip so far (Sea Island) 144.1 mm. Harbour: 216. A simple extrap would be 202 mm (AP) by year end, but there is another AR forming in the mdls for after Xmas so we'll see