RainlessSnowless & Grumpy
Member
Invent a time machine!How do we get this again.
Invent a time machine!How do we get this again.
Its not a bad model, always keep it in consideration. I remember it performing well on some events last yearI’m kind of looking forward to people starting to pull out the ICON for winter tracking.
It doesn't get real until we extrapolate the 84 hour Nam.I’m kind of looking forward to people starting to pull out the ICON for winter tracking.
Soon to be added December 8 2021 “historic” ???Before I share the climo graph, (as I promised to @Ollie Williams & others) I've made a much deserved facelift the massive teleconnection spreadsheet on my website, made it a bit user friendly and added a few parameters to it, like the TNH Index I talked about yesterday as well as the RMM MJO and then made distinctions between the type of winter storm (ice or snow) and its severity.
I've taken a screen capture (shown below) from a piece of it around January 2000 to explain what each column means:
From left to right:
Column 1: Day # (Number of total Nov-Apr days since 1948 in sequential order).
Column 2: Winter Season Day # (Starting at 1 on Nov, and increasing up to 181 on April 30th, then going back to one on the next Nov 1, etc.)
Column 3: Year (In sequential order from 1948 to 2021)
Column 4: Month # (1 = January, 2 = February, 3 = March, etc.)
Column 5: Day (of month) (self explanatory).
Column 6: Daily Arctic Oscillation (AO) Index: (1950-Present) (I normalized + detrended each month to remove long-term trends)
Column 7: Daily North Atlantic Oscillation (NAO) Index: (1948-Present). (I normalized + detrended each month to remove long-term trends)
Column 8: Daily Pacific-North American Pattern (PNA) Index: (1948-Present) (I normalized + detrended each month to remove long-term trends)
Column 9: Daily Eastern Pacific Oscillation (EPO) Index: (1948-Present) (I normalized + detrended each month to remove long-term trends)
Column 10: Daily Western Pacific Oscillation (WPO) Index: (1948-Present) (I normalized + detrended each month to remove long-term trends)
Column 11: Daily Tropical-Northern Hemisphere (TNH) Index: (1948-Present) Defined using the following daily-averaged NCEP-NCAR Reanalysis 500mb geopotential height grid boxes: [[(30N-60N, 160W-120W) - 42.5N-67.5N, 105W-35W) +[(15N-32.5N, 100W-30W) - 42.5N-67.5N, 105W-35W)]/2] (I normalized + detrended each month to remove long-term trends)
Column 12: Daily Realtime Multivariate MJO (RMM) Index: (1974-Present) Phase. Amplitude < 0.95 = "Null" phase.
Column 13: Daily Realtime Multivariate MJO (RMM) Index: (1974-Present) Amplitude
Column 14: NC Winter Storms Categorized by severity I've chosen arbitrarily but I think the descriptions and corresponding amounts are pretty accurate:
"Minor" (Level 1) Winter Storm: At least 1" Snow/Sleet accumulation &/or at least a trace of glaze anywhere east of the mountains & far western piedmont
"Major" (Level 2) Winter Storm: More than 4" Snow/Sleet accumulation &/or at least 0.25" of glaze anywhere east of the mountains & far western piedmont
"Extreme" (Level 3) Winter Storm: More than 8" Snow/Sleet accumulation &/or at least 0.50" of glaze anywhere east of the mountains & far western piedmont
"Historic" (Level 4) Winter Storm: More than 12" Snow/Sleet accumulation &/or at least 1" of glaze anywhere east of the mountains & far western piedmont
Column 15: Hyperlinks to Winter Storm Maps associated with each storm. (a few are missing & haven't been analyzed yet, but that'll change soon)
Column 16: Determines which precipitation type (snow or ice) has greater severity. Ice takes precedent over snow if they're both of the same category (because generally speaking, ice tends to be more destructive than snow)
Column 17: sources for maps &/or data:
Webberweather.com
NC State Climate Office Winter Storm Database
NWS RAH Past events
xmACIS2
View attachment 95999
You can also download this spreadsheet by clicking the link below:
Nov-Mar Daily Teleconnections and NC Winter Storms List (1948-2021)
Refs gonna give shitpack the WBrick's Heels are now leading the Teeth 17-14
They just did; unless the Heels pull a last minute miracleRefs gonna give shitpack the W
Check out this member lol
Check out this member lolView attachment 96035
Ain’t no going back now. This will most likely happenOh no eh oof womp golf come to papa cookouts Beach weather la ninaView attachment 96039
More like, Oh no eps sucks again
Courtesy of one of the most embarrassing sports melt downs of all time, Atlanta breathing a sigh of relief this morning.It was a cold evening but one that ended with me and my 10 y/o son on the field at Carter Finley. Go Pack!
View attachment 96045View attachment 96046View attachment 96047