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donsutherland1

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Everything posted by donsutherland1

  1. Morning thoughts… Today will be partly to mostly cloudy and unseasonably warm. Showers and thundershowers are possible. High temperatures will reach the lower and middle 60s in most areas. Likely high temperatures around the region include: New York City (Central Park): 64° Newark: 66° Philadelphia: 65° Cooler air will begin to arrive late tomorrow. Normals: New York City: 30-Year: 42.3°; 15-Year: 42.4° Newark: 30-Year: 43.2°; 15-Year: 43.3° Philadelphia: 30-Year: 44.5°; 15-Year: 44.3°
  2. Under sparkling sunshine, the temperature soared to springlike levels. Newark saw the mercury reached 70°. Tomorrow will be another unseasonably warm day. However, a shower or thundershower is possible. Temperatures will run generally above to much above normal through the third week of February. Afterward, temperatures could cool during the closing 7 days of the month. That could afford an opportunity for a snowfall in the Mid-Atlantic region during the February 22-24 timeframe. More than likely, any snowfall would be modest. At this timeframe, a snowfall is not a guaranteed outcome. No severe shots of cold appear likely through February. Among the extended range scenarios on the table is a late February-early March 2002-type outcome. Under such a scenario, cold air would flood into the Plains States, but persistent southeast ridging would keep most of the cold away from the northeastern and Mid-Atlantic United States. During February 28-March 5, 2002 high temperatures in the New York City area generally reached the lower to middle 40s with low temperatures in the 20s at night. At the height of the cold, one night saw the temperature fall into the upper teens. By March 7, the cold was gone and readings return to much above normal levels. The ENSO Region 1+2 anomaly was +0.7°C and the Region 3.4 anomaly was -0.5°C for the week centered around February 8. For the past six weeks, the ENSO Region 1+2 anomaly has averaged -0.12°C and the ENSO Region 3.4 anomaly has averaged -0.62°C. La Niña conditions fading and they should evolve to neutral conditions during late winter or early spring. The SOI was +19.93 today. The preliminary Arctic Oscillation (AO) was +0.841 today. On February 13 the MJO was in Phase 6 at an amplitude of 2.519 (RMM). The February 12-adjusted amplitude was 2.346 (RMM). Based on sensitivity analysis applied to the latest guidance, there is an implied 96% probability that New York City will have a warmer than normal February (1991-2020 normal). February will likely finish with a mean temperature near 40.4° (4.5° above normal).
  3. Winters with less than 1" snowfall in December and < 3" total in January-February: 1918-1919, 1931-1932, 1972-1973, 1991-1992, 1997-1998 2001-02 had a trace of snow in December and 3.5" in January-February (nothing afterward).
  4. There’s a window of opportunity during 2/22-24. A lot can still change, but at least there’s some guidance with some snowfall. Let’s see where things stand at the end of the week.
  5. Morning thoughts… Today will be partly sunny and unseasonably warm. High temperatures will reach the lower and middle 60s in most areas. Likely high temperatures around the region include: New York City (Central Park): 62° Newark: 65° Philadelphia: 65° Unseasonably mild weather will prevail through Friday. Normals: New York City: 30-Year: 42.1°; 15-Year: 42.2° Newark: 30-Year: 43.0°; 15-Year: 43.1° Philadelphia: 30-Year: 44.2°; 15-Year: 44.0°
  6. Tomorrow will unseasonably warm. Readings will likely reach the lower and even middle 60s across the Mid-Atlantic region. Temperatures will run generally above to much above normal through the third week of February. Afterward, temperatures could cool during the closing 7 days of the month. That could afford an opportunity for a rare (for this winter) snowfall in the Mid-Atlantic region during the February 22-24 timeframe. More than likely, any snowfall would be modest. No severe shots of cold appear likely through February. Among the extended range scenarios on the table is a late February-early March 2002-type outcome. Under such a scenario, cold air would flood into the Plains States, but persistent southeast ridging would keep most of the cold away from the northeastern and Mid-Atlantic United States. During February 28-March 5, 2002 high temperatures in the New York City area generally reached the lower to middle 40s with low temperatures in the 20s at night. At the height of the cold, one night saw the temperature fall into the upper teens. By March 7, the cold was gone and readings return to much above normal levels. The ENSO Region 1+2 anomaly was +0.7°C and the Region 3.4 anomaly was -0.5°C for the week centered around February 8. For the past six weeks, the ENSO Region 1+2 anomaly has averaged -0.12°C and the ENSO Region 3.4 anomaly has averaged -0.62°C. La Niña conditions fading and they should evolve to neutral conditions during late winter or early spring. The SOI was +15.23 today. The preliminary Arctic Oscillation (AO) was +1.259 today. On February 12 the MJO was in Phase 6 at an amplitude of 2.342 (RMM). The February 11-adjusted amplitude was 2.076 (RMM). Based on sensitivity analysis applied to the latest guidance, there is an implied 97% probability that New York City will have a warmer than normal February (1991-2020 normal). February will likely finish with a mean temperature near 40.6° (4.7° above normal).
  7. Morning thoughts… Today will be mostly sunny and mild. High temperatures will reach the lower and middle 50s in most areas. Likely high temperatures around the region include: New York City (Central Park): 54° Newark: 55° Philadelphia: 55° Unseasonably mild weather will prevail through Friday. Normals: New York City: 30-Year: 42.0°; 15-Year: 42.0° Newark: 30-Year: 42.7°; 15-Year: 42.8° Philadelphia: 30-Year: 44.0°; 15-Year: 43.8°
  8. I also am cautious given the sample size involved. However, even if one sees a big drop in the AO/NAO within 45 days, we’ll be in mid- to late-March. It will be interesting to see what actually happens.
  9. Yes, that’s true. With shortening wave lengths, a PNA- is no longer the problem it was earlier in the winter. Hopefully, the NAO can help suppress the SE ridge.
  10. Under brilliant sunshine, today featured more of the springlike warmth that has defined much of the winter. Temperatures generally ranged from the middle 50s to the lower 60s. At JFK Airport, the temperature reached 56°, which broke the old record of 54°, which was set in 1949. Islip saw a high temperature of 56°, which tied the record set in 2008. Tomorrow will be somewhat cooler but still warmer than normal. Temperatures will rebound strongly on Wednesday. Temperatures will run generally above to much above normal through the third week of February. Afterward, temperatures could cool during the closing 7 days of the month. However, no severe shots of cold appear likely into late February. Among the extended range scenarios on the table is a late February-early March 2002-type outcome. Under such a scenario, cold air would flood into the Plains States, but persistent southeast ridging would keep most of the cold away from the northeastern and Mid-Atlantic United States. During February 28-March 5, 2002 high temperatures in the New York City area generally reached the lower to middle 40s with low temperatures in the 20s at night. At the height of the cold, one night saw the temperature fall into the upper teens. By March 7, the cold was gone and readings return to much above normal levels. The ENSO Region 1+2 anomaly was +0.7°C and the Region 3.4 anomaly was -0.5°C for the week centered around February 8. For the past six weeks, the ENSO Region 1+2 anomaly has averaged -0.12°C and the ENSO Region 3.4 anomaly has averaged -0.62°C. La Niña conditions fading and they should evolve to neutral conditions during late winter or early spring. The SOI was +13.45 today. The preliminary Arctic Oscillation (AO) was +2.045 today. On February 11 the MJO was in Phase 5 at an amplitude of 2.068 (RMM). The February 10-adjusted amplitude was 2.075 (RMM). Based on sensitivity analysis applied to the latest guidance, there is an implied 97% probability that New York City will have a warmer than normal February (1991-2020 normal). February will likely finish with a mean temperature near 40.7° (4.8° above normal).
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