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Welcome to the WEATHERAmerica Google Group, the home of the WEATHERAmerica Newsletter! Larry Cosgrove, manager of group.
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Larry Cosgrove
Jan 4
WEATHERAmerica Newsletter, Saturday, January 3, 2026; SHORT TERM And MEDIUM RANGE OUTLOOKS
SHORT RANGE OUTLOOK (Through The Next 72 Hours) Now Maybe We Can Start A Warm-Up? METEOBLUE
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WEATHERAmerica Newsletter, Saturday, January 3, 2026; SHORT TERM And MEDIUM RANGE OUTLOOKS
SHORT RANGE OUTLOOK (Through The Next 72 Hours) Now Maybe We Can Start A Warm-Up? METEOBLUE
Jan 4
Larry Cosgrove
Jan 3
WEATHERAmerica Newsletter, Saturday, January 3, 2026; EXTENDED PERIOD FORECAST
EXTENDED PERIOD FORECAST (Between Day 11 And Day 15) January Thaw Will Lead To January Freeze And
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WEATHERAmerica Newsletter, Saturday, January 3, 2026; EXTENDED PERIOD FORECAST
EXTENDED PERIOD FORECAST (Between Day 11 And Day 15) January Thaw Will Lead To January Freeze And
Jan 3
Larry Cosgrove
Jan 3
WEATHERAmerica Newsletter, Saturday, January 3, 2026; WEATHER HAZARDS, GLOBAL WEATHER SUMMARY
WEATHER HAZARDS (During The Next 24 Hours) SEVERE WEATHER OUTLOOK (potential for tornadoes, damaging
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WEATHERAmerica Newsletter, Saturday, January 3, 2026; WEATHER HAZARDS, GLOBAL WEATHER SUMMARY
WEATHER HAZARDS (During The Next 24 Hours) SEVERE WEATHER OUTLOOK (potential for tornadoes, damaging
Jan 3
Larry Cosgrove
12/28/25
WEATHERAmerica Newsletter. Saturday, December 27, 2025; SHORT RANGE And MEDIUM RANGE OUTLOOKS
SHORT RANGE OUTLOOK (Through The Next 72 Hours) Mid-Continent Warm Bubble Suppressed By Vortex, Cold
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WEATHERAmerica Newsletter. Saturday, December 27, 2025; SHORT RANGE And MEDIUM RANGE OUTLOOKS
SHORT RANGE OUTLOOK (Through The Next 72 Hours) Mid-Continent Warm Bubble Suppressed By Vortex, Cold
12/28/25
Larry Cosgrove
12/27/25
WEATHERAmerica Newsletter, Saturday, December 27, 2025; EXTENDED PERIOD FORECAST
EXTENDED PERIOD FORECAST (Between Day 11 And Day 15) Weather Model Chaos Aside.....Unstable Warm vs.
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WEATHERAmerica Newsletter, Saturday, December 27, 2025; EXTENDED PERIOD FORECAST
EXTENDED PERIOD FORECAST (Between Day 11 And Day 15) Weather Model Chaos Aside.....Unstable Warm vs.
12/27/25
Larry Cosgrove
12/27/25
WEATHERAmerica Newsletter, Saturday, December 27, 2025; WEATHER HAZARDS And GLOBAL SATELLITE IMAGERY
TODAY'S FUN LINKS: Feedback Loops Accelerate Warming, Other Atmospheric Changes in Arctic The
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WEATHERAmerica Newsletter, Saturday, December 27, 2025; WEATHER HAZARDS And GLOBAL SATELLITE IMAGERY
TODAY'S FUN LINKS: Feedback Loops Accelerate Warming, Other Atmospheric Changes in Arctic The
12/27/25
Larry Cosgrove
12/21/25
WEATHERAmerica Newsletter, Sunday, December 21, 2025; EXTENDED PERIOD FORECAST
EXTENDED PERIOD FORECAST (Between Day 11 And Day 15) Uncertainty And Chaos And The Numerical Models,
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WEATHERAmerica Newsletter, Sunday, December 21, 2025; EXTENDED PERIOD FORECAST
EXTENDED PERIOD FORECAST (Between Day 11 And Day 15) Uncertainty And Chaos And The Numerical Models,
12/21/25
Larry Cosgrove
12/20/25
WEATHERAmerica Newsletter, Saturday, December 13, 2025; SHORT And MEDIUM RANGE OUTLOOKS
SHORT RANGE OUTLOOK (Through The Next 72 Hours) Cold Canada/New England Vs. Warm Rest Of The USA
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WEATHERAmerica Newsletter, Saturday, December 13, 2025; SHORT And MEDIUM RANGE OUTLOOKS
SHORT RANGE OUTLOOK (Through The Next 72 Hours) Cold Canada/New England Vs. Warm Rest Of The USA
12/20/25
Larry Cosgrove
12/20/25
JANUARY 2026 WEATHER FORECASTS, Saturday, December 20, 2025
ANALOG YEARS USED FOR THIS FORECAST WEATHERAmerica Temperature Anomaly Forecast CanSIPS Temperature
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JANUARY 2026 WEATHER FORECASTS, Saturday, December 20, 2025
ANALOG YEARS USED FOR THIS FORECAST WEATHERAmerica Temperature Anomaly Forecast CanSIPS Temperature
12/20/25
Larry Cosgrove
12/18/25
WEATHERAmerica Monthly Analog-Derived And Numerical Model Temperature Anomaly Forecasts; Thursday, December 18, 2025
JANUARY 2026 ECMWF CanSIPS ANALOG FEBRUARY 2026 ECMWF CFS ANALOG MARCH 2026 ECMWF CanSIPS ANALOG
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WEATHERAmerica Monthly Analog-Derived And Numerical Model Temperature Anomaly Forecasts; Thursday, December 18, 2025
JANUARY 2026 ECMWF CanSIPS ANALOG FEBRUARY 2026 ECMWF CFS ANALOG MARCH 2026 ECMWF CanSIPS ANALOG
12/18/25
Larry Cosgrove
12/15/25
OCEANIC NINO INDEX (ONI) And ANALOG YEARS; Monday. DECEMBER 15, 2025
To calculate possible weather outcomes using these analogs: Climate Plotting And Analysis Tools
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OCEANIC NINO INDEX (ONI) And ANALOG YEARS; Monday. DECEMBER 15, 2025
To calculate possible weather outcomes using these analogs: Climate Plotting And Analysis Tools
12/15/25
Larry Cosgrove
12/14/25
WEATHERAmerica Newsletter, Saturday, December 13, 2025; EXTENDED PERIOD FORECAST
EXTENDED PERIOD FORECAST (Between Day 11 And Day 15) Maybe, Possibly, Some Hope For A Wintry Turn In
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WEATHERAmerica Newsletter, Saturday, December 13, 2025; EXTENDED PERIOD FORECAST
EXTENDED PERIOD FORECAST (Between Day 11 And Day 15) Maybe, Possibly, Some Hope For A Wintry Turn In
12/14/25
Larry Cosgrove
12/13/25
WEATHERAmerica Newsletter, Saturday, December 13, 2025; WEATHER HAZARDS And GLOBAL SATELLITE IMAGERY
WEATHER HAZARDS (During The Next 24 Hours) SEVERE WEATHER OUTLOOK (potential for tornadoes, damaging
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WEATHERAmerica Newsletter, Saturday, December 13, 2025; WEATHER HAZARDS And GLOBAL SATELLITE IMAGERY
WEATHER HAZARDS (During The Next 24 Hours) SEVERE WEATHER OUTLOOK (potential for tornadoes, damaging
12/13/25
Larry Cosgrove
12/7/25
WEATHERAmerica Newsletter, Sunday, December 7, 2025; NEXT TEN DAYS
SHORT RANGE OUTLOOK (Through The Next 72 Hours) Another Cold 500MB Vortex Moves Through The Great
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WEATHERAmerica Newsletter, Sunday, December 7, 2025; NEXT TEN DAYS
SHORT RANGE OUTLOOK (Through The Next 72 Hours) Another Cold 500MB Vortex Moves Through The Great
12/7/25
Larry Cosgrove
12/7/25
WEATHERAmerica Newsletter, Saturday, December 6, 2025; EXTENDED PERIOD FORECAST
EXTENDED PERIOD FORECAST (Between Day 11 And Day 15) Blocking Pattern At 500MB, Subtropical Jet
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WEATHERAmerica Newsletter, Saturday, December 6, 2025; EXTENDED PERIOD FORECAST
EXTENDED PERIOD FORECAST (Between Day 11 And Day 15) Blocking Pattern At 500MB, Subtropical Jet
12/7/25
Larry Cosgrove
12/6/25
WEATHERAmerica Newsletter, Saturday, December 6, 2025; SATELLITE IMAGERY And WEATHER EXTREMES
TODAY'S FUN LINKS: Improving Snowfall Forecasts in the Mountain West University of Utah - 20
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WEATHERAmerica Newsletter, Saturday, December 6, 2025; SATELLITE IMAGERY And WEATHER EXTREMES
TODAY'S FUN LINKS: Improving Snowfall Forecasts in the Mountain West University of Utah - 20
12/6/25
Larry Cosgrove
11/30/25
1-5, 6-10, 11-15, 16-20 Day Temperature Forecast Anomaly Charts And December Final Call For 500MB And Temperature; Sunday, November 30, 2025
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1-5, 6-10, 11-15, 16-20 Day Temperature Forecast Anomaly Charts And December Final Call For 500MB And Temperature; Sunday, November 30, 2025
11/30/25
Larry Cosgrove
11/30/25
WEATHERAmerica Newsletter, Sunday, November 30, 2025; EXTENDED PERIOD SUMMARY
Will The Cold Stay Over The Midwest, Great Lakes, and Northeast? The Storm Track May Be The Great
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WEATHERAmerica Newsletter, Sunday, November 30, 2025; EXTENDED PERIOD SUMMARY
Will The Cold Stay Over The Midwest, Great Lakes, and Northeast? The Storm Track May Be The Great
11/30/25
Larry Cosgrove
11/30/25
WEATHERAmerica Newsletter, Saturday, November 29, 2025; NEXT TEN DAYS
SHORT RANGE OUTLOOK (Through The Next 72 Hours) Cold To Be Sure, But A Moderated Arctic Air Mass East
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WEATHERAmerica Newsletter, Saturday, November 29, 2025; NEXT TEN DAYS
SHORT RANGE OUTLOOK (Through The Next 72 Hours) Cold To Be Sure, But A Moderated Arctic Air Mass East
11/30/25
Larry Cosgrove
11/29/25
WEATHERAmerica Newsletter, Saturday, November 29, 2025; WEATHER EXTREMES And GLOBAL SATELLITE IMAGERY
WEATHER HAZARDS (During The Next 24 Hours) SEVERE WEATHER OUTLOOK (potential for tornadoes, damaging
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WEATHERAmerica Newsletter, Saturday, November 29, 2025; WEATHER EXTREMES And GLOBAL SATELLITE IMAGERY
WEATHER HAZARDS (During The Next 24 Hours) SEVERE WEATHER OUTLOOK (potential for tornadoes, damaging
11/29/25
Larry Cosgrove
11/23/25
WEATHERAmerica Newsletter; Saturday, November 22, 2025; EXTENDED PERIOD FORECAST
EXTENDED PERIOD FORECAST (Between Day 11 And Day 15) Still A (Mostly) Mild December Outlook CIMSS (2)
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WEATHERAmerica Newsletter; Saturday, November 22, 2025; EXTENDED PERIOD FORECAST
EXTENDED PERIOD FORECAST (Between Day 11 And Day 15) Still A (Mostly) Mild December Outlook CIMSS (2)
11/23/25
Larry Cosgrove
11/23/25
WEATHERAmerica Newsletter, Saturday, November 22, 2025; WEATHER EXTREMES And GLOBAL SATELLITE IMAGERY; Saturday; November 22, 2025
TODAY'S FUN LINKS: Iceland Deems Possible Atlantic Current Collapse a Security Risk Reuters - 12
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WEATHERAmerica Newsletter, Saturday, November 22, 2025; WEATHER EXTREMES And GLOBAL SATELLITE IMAGERY; Saturday; November 22, 2025
TODAY'S FUN LINKS: Iceland Deems Possible Atlantic Current Collapse a Security Risk Reuters - 12
11/23/25
Larry Cosgrove
11/22/25
DECEMBER WEATHER FORECASTS, Saturday, November 22, 2025
ANALOG YEARS USED FOR THIS FORECAST WEATHERAmerica Temperature Anomaly Forecast CanSIPS Temperature
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DECEMBER WEATHER FORECASTS, Saturday, November 22, 2025
ANALOG YEARS USED FOR THIS FORECAST WEATHERAmerica Temperature Anomaly Forecast CanSIPS Temperature
11/22/25
Larry Cosgrove
11/22/25
Updated OCEANIC NINO INDEX (ONI) TABLES And Analog Years, Saturday, November 22, 2025
To calculate possible weather outcomes using these analogs: Climate Plotting And Analysis Tools
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Updated OCEANIC NINO INDEX (ONI) TABLES And Analog Years, Saturday, November 22, 2025
To calculate possible weather outcomes using these analogs: Climate Plotting And Analysis Tools
11/22/25
Larry Cosgrove
11/16/25
WEATHERAmerica Newsletter, Sunday, November 16, 2025; NEXT TEN DAYS
SHORT RANGE OUTLOOK (Through The Next 72 Hours) Warm And Dry Pattern Continues In Much Of The USA (
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WEATHERAmerica Newsletter, Sunday, November 16, 2025; NEXT TEN DAYS
SHORT RANGE OUTLOOK (Through The Next 72 Hours) Warm And Dry Pattern Continues In Much Of The USA (
11/16/25
Larry Cosgrove
11/16/25
WEATHERAmerica Newsletter, Saturday, November 15, 2025; EXTENDED PERIOD FORECAST
EXTENDED PERIOD FORECAST (Between Day 11 And Day 15) Still A (Mostly) Mild December Outlook CIMSS (2)
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WEATHERAmerica Newsletter, Saturday, November 15, 2025; EXTENDED PERIOD FORECAST
EXTENDED PERIOD FORECAST (Between Day 11 And Day 15) Still A (Mostly) Mild December Outlook CIMSS (2)
11/16/25
Larry Cosgrove
11/15/25
WEATHERAmerica Monthly Numerical Model Temperature Anomaly Forecasts; Saturday, November 15, 2025
DECEMBER 2025 ECMWF CanSIPS ANALOG JANUARY 2026 ECMWF CFS ANALOG FEBRUARY 2026 ECMWF CFS ANALOG MARCH
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WEATHERAmerica Monthly Numerical Model Temperature Anomaly Forecasts; Saturday, November 15, 2025
DECEMBER 2025 ECMWF CanSIPS ANALOG JANUARY 2026 ECMWF CFS ANALOG FEBRUARY 2026 ECMWF CFS ANALOG MARCH
11/15/25
Larry Cosgrove
11/15/25
WEATHERAmerica Newsletter, Saturday, November 15, 2025
WEATHER HAZARDS (During The Next 24 Hours) SEVERE WEATHER OUTLOOK (potential for tornadoes, damaging
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WEATHERAmerica Newsletter, Saturday, November 15, 2025
WEATHER HAZARDS (During The Next 24 Hours) SEVERE WEATHER OUTLOOK (potential for tornadoes, damaging
11/15/25
Larry Cosgrove
11/9/25
WEATHERAmerica Newsletter, Saturday, November 8, 2025; MEDIUM RANGE OUTLOOK
MEDIUM RANGE OUTLOOK (Four To Ten Days From Now) The (Modified) Cold Air Retreats Into Canada And The
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WEATHERAmerica Newsletter, Saturday, November 8, 2025; MEDIUM RANGE OUTLOOK
MEDIUM RANGE OUTLOOK (Four To Ten Days From Now) The (Modified) Cold Air Retreats Into Canada And The
11/9/25
Larry Cosgrove
11/8/25
WEATHERAmerica Newsletter, Saturday, November 8, 2025; SHORT RANGE OUTLOOK
SHORT RANGE OUTLOOK (Through The Next 72 Hours) Alberta Clipper, Polar Air Mass Send A Short-Lived
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WEATHERAmerica Newsletter, Saturday, November 8, 2025; SHORT RANGE OUTLOOK
SHORT RANGE OUTLOOK (Through The Next 72 Hours) Alberta Clipper, Polar Air Mass Send A Short-Lived
11/8/25