GaWx
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2026-2027 Strong/Super El Nino
GaWx replied to Stormchaserchuck1's topic in Weather Forecasting and Discussion
There was a historic very heavy snowstorm in the SE US on 3/24/1983. ATL got 7.9” of very wet snow, their heaviest snowstorm since Jan of 1940. That even gave Savannah a trace of sleet! ATL also had its snowiest winter (10.3”) since 1939-40 (another El Niño by the way). -
2026-2027 Strong/Super El Nino
GaWx replied to Stormchaserchuck1's topic in Weather Forecasting and Discussion
But this CFS run is still showing a RONI-ONI gap of 0.5C (+2.5 vs +3.0). That narrowing is <0.1 vs the JFM gap of 0.56. -
Officially I see only 0.05” at RDU for May 1-2: https://kamala.cod.edu/nc/latest.cdus42.RDU.KRAH.html Also, I see only 0.63” at FAY vs 0.91” on the map: https://kamala.cod.edu/nc/latest.cdus42.FAY.KRAH.html It’s as if they put in the wrong map. Maybe that was a forecast map?? But it has GSO right with nothing. Here’s a link to the last 7 days rainfall, which shows 0.44” at RDU, 0.77” at FAY, and 0.16” at GSO: https://kamala.cod.edu/offs/KRAH/2605031100.sxus52.html
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2026-2027 Strong/Super El Nino
GaWx replied to Stormchaserchuck1's topic in Weather Forecasting and Discussion
Thanks, snowman. Indeed, it’s forecasting a 1982-3 redux as of now. The corresponding latest CFSv2 ONI forecast is at +3.0C, which is maintaining the recent ~0.5C difference between ONI and RONI: -
There’s a May 2026 obs thread here:
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KSAV (airport) had a record breaking low of 46 this morning. It was colder than all of the model progs, which were 49 to low 50s. The 46 is the second coldest low since March 21st! Also for KSAV, that’s the 4th record low within the last 12 months: 11/11/2025, 2/1/2026, 3/18/26, and 5/3/26 6/27/2012 through 5/14/2013 appears to be the last time for that to have occurred. As the dates show, KSAV has had 4 record lows within just the last 6 months! The last time there were 4 record lows within 6 months: 6/6/2005-7/11/2006. There were a whopping 6 during 5/23/2006-7/11/2006! Considering the warming globe, that’s getting more and more difficult and is thus quite notable. To put the GW related handicap into perspective, there have been 9 record highs during this same period that there were 4 record lows. Hunter (KSVN) had a low of 47. Today and tomorrow will be very pleasant for early May with forecasted highs in the mid to upper 70s and dewpoints of mainly 45-52.
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2026-2027 Strong/Super El Nino
GaWx replied to Stormchaserchuck1's topic in Weather Forecasting and Discussion
Agreed and Jax made the correction. But it’s too bad that the monthly updates have stopped. In other ENSO news, I still find it interesting that this sharp warming is occurring without a sustained or notably strong -SOI. We’ve had only short periods of strong -SOI so far and I see no long ones over the next week or so. Some negatives sure, but.. -
2026-2027 Strong/Super El Nino
GaWx replied to Stormchaserchuck1's topic in Weather Forecasting and Discussion
Ooops, Chuck, sorry, I misunderstood you in my prior post. I misinterpreted that you were saying strong STJ as opposed to strong La Niña STJ pattern meaning, the opposite, a very weak STJ. -
2026-2027 Strong/Super El Nino
GaWx replied to Stormchaserchuck1's topic in Weather Forecasting and Discussion
The reds are actually BN, not AN. I know, kind of strange coloring. The SE drought was/is bad due largely to the very dry winter. -
2026-2027 Strong/Super El Nino
GaWx replied to Stormchaserchuck1's topic in Weather Forecasting and Discussion
What about these? I’m going to delete them soon due to big size taking up too much of my attachments space: https://psl.noaa.gov/data/usclimdivs/ -
Since the middle of last night, my area had ~18 hours of near continuous rain, which added to ~1.2” at my place. This was well predicted. It was a near perfect rain to help with drought since it was mainly light to moderate meaning little runoff. I’ll refine this final amount later, if needed. Yesterday’s showers added to only a few hundredths. This is the first event with 1”+ here since way back on Dec 4-5! Great start to May. That also means ~2.2” over the last 7 days in an area that had gone to extreme drought on the latest map due to extreme dryness back to Sept, near the worst drought condition in the US. This doesn’t end the drought but does put a nice dent in it even if only temporary. Hopefully others in a similar situation get similar relief soon if they haven’t already. This event should also have helped with the big fires to the SW. Due to the rain and N winds north of the front, it was quite cool for May with low 60s all day.
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2026-2027 Strong/Super El Nino
GaWx replied to Stormchaserchuck1's topic in Weather Forecasting and Discussion
Based on OISST, Monday’s weekly RONI equivalent for this week averaged out should be warmer than the +0.2 of last week. I’m leaning to +0.4 but +0.5 is possible. Today’s RONI equivalent is ~+0.5-+0.6: -
2026-2027 Strong/Super El Nino
GaWx replied to Stormchaserchuck1's topic in Weather Forecasting and Discussion
We could debate the GW component of OHC when comparing to past Nino events. But regardless, the current 5 month rate of warming of 180-100W OHC is the fastest on record (2.69) back to ‘79: https://www.cpc.ncep.noaa.gov/products/analysis_monitoring/ocean/index/heat_content_index.txt So, the avg. steepness of the rise in this graph since Nov is a record for a 5 mo. period: -
2026-2027 Strong/Super El Nino
GaWx replied to Stormchaserchuck1's topic in Weather Forecasting and Discussion
Thanks, Chris To remind all of the obvious, 2026 has the advantage of the warmest merely due to GW, which of course should be taken into account when comparing the strength of the upcoming Nino to others. How much has it warmed since 2015? 1997? 1982? Haven’t oceans warmed at least ~0.5C since ‘82? The GW component of the tropical oceans should essentially be taken out when comparing strengths of ENSO, which is what RONI does. Even after taking this into account though, 2026 is in contention for the strongest Nino on record. This is also the case for OHC comparisons. -
2026-2027 Strong/Super El Nino
GaWx replied to Stormchaserchuck1's topic in Weather Forecasting and Discussion
2002-3 and especially 2009-10 were cold in the SE. -
Please post May ‘26 obs from your area as well as current wx events/obs for other areas. Hope all or at least most areas of the SE get good rains this month to help with the ongoing drought. The two big SE GA fires are now ~40% contained thanks to help from recent rains down there. My area has had some showers this morning, which includes some isolated small heavier ones. The main show (widespread 1”+) for here as well as for the fire areas is tonight through tomorrow. Please pin @buckeyefan1TIA
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2026-2027 Strong/Super El Nino
GaWx replied to Stormchaserchuck1's topic in Weather Forecasting and Discussion
Thanks. 1. You’re right that 1911-12 was colder in the Great Lakes/Midwest than in the South (see image below). So, good find and makes my statement wrong about ALL moderate or stronger El Niños on record not being colder in the N than in the S. I stand corrected. 2. However, though not as cold, the South still had a pretty cold winter (2-4 BN), which is unlike the NN on the Cansips. So, in that regard, the Cansips is still not making sense to me. Also, 1911-2 was about as cold in the S as the NE. 3. By the way, 1911-12 was just a lower end moderate with a peak of +1.2 per Webb rather than strong. But it’s still an exception to my statement since I was referring to moderate or stronger: https://www.webberweather.com/ensemble-oceanic-nino-index.html -
I had ~0.05” yesterday morning, which brought me up to a total of ~1.5” for April, <50% of the normal of ~3.25” but ~double what I got in March (which was almost all on March 8th by the way). The last 1” of the 1.5” was received just since April 26th on 3 different days with most of that (0.8”) falling on 4/26.
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2026-2027 Strong/Super El Nino
GaWx replied to Stormchaserchuck1's topic in Weather Forecasting and Discussion
That would be very much unlike any moderate or stronger El Niño on record (similar to what the prior run had). So, I still expect it to bust. This looks very strange for a strong+ Nino. The south being warmer than the north doesn’t happen with moderate+ Ninos due to the cooling associated with the stronger than average ST jet and not as cold up north due to the weaker polar jet: this looks much more Niña than Nino in the Conus. -
2026-2027 Strong/Super El Nino
GaWx replied to Stormchaserchuck1's topic in Weather Forecasting and Discussion
Monthly “WP” table has this for D, J, and F 2025-6: 2025 Dec 0.08 2026 Jan 0.07 Feb 0.23 https://psl.noaa.gov/data/correlation/wp.data Daily WPO has one of the most negative WPO Decembers on record with every day <0. There’s no way that a monthly of +0.08 has anything to do with the actual WPOs of Dec 2025. It looks like a major malfunction: https://downloads.psl.noaa.gov/Public/map/teleconnections/wpo.reanalysis.t10trunc.1948-present.txt -
2026-2027 Strong/Super El Nino
GaWx replied to Stormchaserchuck1's topic in Weather Forecasting and Discussion
Is “WP” (monthly table) the same as “WPO” (dailies, which we know were negative most of the winter)? That table has positives in each of D, J, and F! Can’t be the same thing! It has +.08, +.07, and +0.23 lmao. -
2026-2027 Strong/Super El Nino
GaWx replied to Stormchaserchuck1's topic in Weather Forecasting and Discussion
Dec daily WPO: every day was negative and yet that table has +0.08. So, that table is looking at something else. The monthly table url has “wp” in it. Is “wp” the same as “WPO”? 2025 12 01 -163.44 2025 12 02 -139.59 2025 12 03 -103.12 2025 12 04 -115.00 2025 12 05 -37.98 2025 12 06 -31.37 2025 12 07 -48.33 2025 12 08 -84.47 2025 12 09 -106.99 2025 12 10 -130.04 2025 12 11 -192.25 2025 12 12 -316.04 2025 12 13 -347.69 2025 12 14 -304.25 2025 12 15 -259.07 2025 12 16 -205.71 2025 12 17 -191.49 2025 12 18 -190.96 2025 12 19 -200.61 2025 12 20 -183.89 2025 12 21 -135.08 2025 12 22 -127.59 2025 12 23 -138.14 2025 12 24 -130.99 2025 12 25 -113.55 2025 12 26 -107.01 2025 12 27 -95.19 2025 12 28 -71.08 2025 12 29 -82.61 2025 12 30 -127.57 2025 12 31 -123.82 https://downloads.psl.noaa.gov/Public/map/teleconnections/wpo.reanalysis.t10trunc.1948-present.txt -
2026-2027 Strong/Super El Nino
GaWx replied to Stormchaserchuck1's topic in Weather Forecasting and Discussion
Well, I’ll put it this way. That table of monthlies isn’t even close to what the avg of the dailies comes out to. Dec was -WPO every day. Also, Jan and Feb averaged -WPO. I crunched the numbers. link to daily WPO: https://downloads.psl.noaa.gov/Public/map/teleconnections/wpo.reanalysis.t10trunc.1948-present.txt -
2026-2027 Strong/Super El Nino
GaWx replied to Stormchaserchuck1's topic in Weather Forecasting and Discussion
According to the average of the daily WPOs at the link below, it certainly did average a -WPO this winter: https://downloads.psl.noaa.gov/Public/map/teleconnections/wpo.reanalysis.t10trunc.1948-present.txt
