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A Climate Study of Daily Temperature Change From the Previous Day

A Climate Study of Daily Temperature Change From the Previous Day. By Matt Masek 14 th High Plains AMS/NWA Conference. Outline. Data Monthly Statistics Effects of Precipitation Strong Frontal Passages Extreme Values Final Thoughts. Data. North Platte (LBF) Daily Observation

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A Climate Study of Daily Temperature Change From the Previous Day

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  1. A Climate Study of Daily Temperature Change From the Previous Day By Matt Masek 14th High Plains AMS/NWA Conference

  2. Outline • Data • Monthly Statistics • Effects of Precipitation • Strong Frontal Passages • Extreme Values • Final Thoughts

  3. Data • North Platte (LBF) Daily Observation • 111 Years or 40,542 Days • July 1, 1899 (June 30,1899) to June 30, 2010 • Day 2 Compared To Day 1 (D2-D1=X) • Highs • Lows • Average Temperature (no rounding) • X can be Positive, Negative, or 0 (Equal)

  4. High Temperatures

  5. Low Temperatures

  6. Average Temperatures

  7. Precipitation • Compare Day 1 Received Rain • Compare Day 2 Received Rain • Both Day 1 & Day 2 Received Rain • Positive • Negative • Neutral (Equal to 0)

  8. High Temperatures

  9. Positive Day 2 High Temp with Precip

  10. NegativeDay 2 High Temp with Precip

  11. EqualDay 2 High Temp with Precip

  12. Positive Day 2 Low Temp with Precip

  13. NegativeDay 2 Low Temp with Precip

  14. EqualDay 2 Low Temp with Precip

  15. Positive Day 2 AvgTemp with Precip

  16. NegativeDay 2 AvgTemp with Precip

  17. EqualDay 2 AvgTemp with Precip

  18. Frontal Passage • Cold Front • Day 2 High within 1 degree of Day 1 Low • 573 Frontal Passages • Warm Front • Day 2 Low within 1 degree of Day 1 High • 95 Frontal Passages

  19. Cold Front (Change in Max Temp)

  20. Warm Front (Change in Max Temp)

  21. Extreme Daily Changes (Day 2 compared to Day 1)

  22. Final Thoughts (Fun Facts) • High Temperatures • Average Daily Change • If D2 Warmer → +7.7° (50.9%) • If D2 Colder → -8.8° (44.6%) • Low Temperatures • Average Daily Change • If D2 Warmer → +6.0° (44.1%) • If D2 Colder → -5.4° (49.3%) • Average Temperatures • Average Daily Change • If D2 Warmer → +5.2° (50.6%) • If D2 Colder → -5.7° (46.6%)

  23. Final Thoughts • Day 2 High Warmer than Day 1 • Day 2 Low Cooler than Day 1 • Precip on Day 1 • Day 2 High More Likely to be Warmer • Day 2 Low More Likely to be Cooler • Precip on Day 2 • Day 2 High More Likely to be Cooler • Day 2 Low More Likely to be Warmer • Many More Cold Fronts than Warm Fronts • Fronts Cause ± 10° to 19° Temp Change Most Often

  24. Thank You ???

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