{ "number": 890, "headline": "March 7, 2026 Saturday Weather After Dark", "standfirst": "Eastern U.S. experiencing early Spring warmth with plenty of rain", "desk": "notebook", "dateline": { "place": "Weather Trader", "state": null, "lat": null, "lon": null, "site_key": null, "site_name": null, "site_url": null, "accent": null }, "edition": "2026-03-08", "published": "2026-03-08T01:45:09.819000Z", "updated": null, "access": "free", "body_html": "
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ECMWF 18z Precipitation Type + Intensity | Next 6-days

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Main story into next week will be a strong cold front that ushers in much colder Arctic air across the Midwest and Great Lakes into the Northeast by next weekend. Then, another Clipper System on its heels \u2026 with rather low central pressure in the 980 mb range. The storm track will be on the periphery of a still very strong tropospheric polar vortex churning away in Canada \u2014 which will stretch southward and dip its lobes into the Lower 48 into mid-March.

Just maps this evening \u2014 more on Sunday!

This is post number 890: Good Evening! Day 66 of 2026.

Author: Dr. Ryan Maue (X @RyanMaue X @weathertrader)

Weather Trader is an entirely reader-supported publication into Year 3. To receive all new posts [daily] via email or the Substack App, and support our work, consider becoming a paid subscriber \u2014 ALL content is generated by Ryan (not A.I.) including the maps.

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Daily High Temperatures to Monday March 16th

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First cold front Thurs-Friday before even colder air into next weekend and the following days. Thankfully, we\u2019re into mid-March so the \u201ccold\u201d is relative to early spring and not as intense as Jan/Feb.

Lows Next Tuesday March 17 \u2014 still plenty cold enough

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Boatloads of precipitation / heavy rainfall for next 8-days+

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Temperature Anomaly Next 6-days \u2014> Much above normal temperatures across much of the Lower 48 with warm, southerly flow, but the Canadian Arctic fights back later next week.

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Next 6-days of Precipitable Water (my favorite parameter)

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Next 12-days of Integrated Vapor Transport (ECMWF 12z)

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Weather into Sunday morning \u2014 still a slight chance of severe weather along this cold front with hail in south Texas being the most serious risk

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Rain and storms largely fizzle out along the Gulf coast and Southeast into Sunday morning, but could be some gusty winds in New Orleans

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Fast moving showers \u2026 snow in Canada.

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Weather on Sunday

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HRRR 18z \u2014 Radar Simulation Next 48-hours to Monday 1 PM ET

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RTMA Current Temperature Analysis | 6:30 PM ET

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RTMA Current Temperature Anomaly Analysis | 6:30 PM ET

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Lower 48 is a whopping 6.8\u00b0F above normal

Low Temperatures on Sunday

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Only 13 million below freezing including the Great Lakes and around Denver

High Temperatures on Sunday

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157 Million at least 70\u00b0F and 57 million at least 80\u00b0F

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NDFD NWS Total Precipitation Next 72-hours through Tuesday Evening

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NWS Snowfall Next 72-hours \u2014 through Tuesday Evening

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Blend of Models | 10 Days Precipitation Total

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Blend of Models | Total Snowfall Next 10-Days

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ECMWF AIFS 18z | Temperature at 500 mb | Next 10-days

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You can see the entire PV descend / stretch southward \u2026 and plenty cold with the centroid at -45\u00b0C at 500 mb \u2026 with a lobe into Great Lakes / Northeast at Days 8-10. If this happens \u2014 then we\u2019re in for a brief but major Arctic blast for mid-March.

ECMWF AIFS 18z | Height Anomaly at 500 mb | Next 10-days

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Snowfall | Median of ECMWF Ensembles at 12z | Next 15-days

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Probability of at least 3\u201d of Snowfall Next 15-days

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Probability of at least 6\u201d of Snowfall Next 15-days

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Temperature Anomaly | Next 15-days | ECMWF EPS 12z Ensemble Mean Flagship

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5-Day Chunk #1 | Temperature Anomaly | March 7 - March 11

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5-Day Chunk #2 | Temperature Anomaly | March 12 - March 16

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5-Day Chunk #3 | Temperature Anomaly | March 17 - March 21

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Maps sourced from weathermodels.com designed and innovated by yours truly! Please subscribe there for real-time access to the newest maps, charts from all of the weather models including ECMWF and AIFS, and NOAA GFS/GEFS. NOAA WPC and SPC for fronts/convective outlooks.

", "body_key": null, "teaser_html": "

Main story into next week will be a strong cold front that ushers in much colder Arctic air across the Midwest and Great Lakes into the Northeast by next weekend. Then, another Clipper System on its heels \u2026 with rather low central pressure in the 980 mb range. The storm track will be on the periphery of a still very strong tropospheric polar vortex churning away in Canada \u2014 which will stretch southward and dip its lobes into the Lower 48 into mid-March.

Just maps this evening \u2014 more on Sunday!

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