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donsutherland1

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    http://wintercenter.homestead.com/photoindex.html

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  • Four Letter Airport Code For Weather Obs (Such as KDCA)
    KNYC
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    New York

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  1. donsutherland1
    The pattern following the breakdown of a strong El Niño can sometimes be quite active in the spring. 1983, 1998, and 2010 are some examples.
  2. donsutherland1
    Showers will depart tomorrow and the clouds could begin to break during the afternoon. However, partly to mostly cloudy conditions could persist throught the weekend. Further, additional showers are possible during the weekend. In the wake of the system, readings will reach mainly the 60s through the weekend. No significant early-season heat is likely through at least the first three weeks of May. However, it could turn warmer next week. The ENSO Region 1+2 anomaly was -0.4°C and the Region 3.4 anomaly was +0.3°C for the week centered around May 8. For the past six weeks, the ENSO Region 1+2 anomaly has averaged -0.08°C and the ENSO Region 3.4 anomaly has averaged +0.73°C. Neutral conditions are now developing. The SOI was +14.42 on May 13. The preliminary Arctic Oscillation (AO) was +1.387 today. Based on sensitivity analysis applied to the latest guidance, there is an implied 52% probability that New York City will have a warmer than normal May (1991-2020 normal). May will likely finish with a mean temperature near 63.3° (0.1° above normal).
  3. donsutherland1
    Yesterday, Fort Lauderdale had a minimum temperature of 85°. That set a new May record and tied the all-time mark. All three prior cases had occurred in August. The average minimum temperature in May has warmed dramatically from 70.1° during 1961-1990 to 73.2° during 1991-2020. Excessive ocean warmth has played an important role, with climate change having increased the frequency, magnitude, and duration of marine heatwaves.
  4. donsutherland1
    It is all but certain that map will fail spectacularly. Let’s see if JB embraces it, as he so often does with other maps showing cold extremes.
  5. donsutherland1
    It is an interesting development. Unless we have a cool end to the month, I think things still favor a warmer than normal May. Maybe we’re getting to about as cool as the models will show.
  6. donsutherland1
    A system will bring showers and periods of rain tomorrow into Thursday. A general 0.25"-0.75" rainfall appears likely. Additional showers are possible during the weekend. Afterward, much of the week will likely see temperatures in the upper 60s and lower 70s. No significant early-season heat is likely through at least the first three weeks of May. The ENSO Region 1+2 anomaly was -0.4°C and the Region 3.4 anomaly was +0.3°C for the week centered around May 8. For the past six weeks, the ENSO Region 1+2 anomaly has averaged -0.08°C and the ENSO Region 3.4 anomaly has averaged +0.73°C. Neutral conditions are now developing. The SOI was +6.30 on May 13. The preliminary Arctic Oscillation (AO) was +1.595 today. Based on sensitivity analysis applied to the latest guidance, there is an implied 53% probability that New York City will have a warmer than normal May (1991-2020 normal). May will likely finish with a mean temperature near 63.5° (0.3° above normal).
  7. donsutherland1
    I don’t think so.
  8. donsutherland1
    Tomorrow will be partly sunny and warm with widespread readings in the lower and middle 70s. Some showers are possible. A system will bring periods of rain on Wednesday into Thursday. A general 0.25"-0.75" rainfall appears likely. Afterward, much of the week will likely see temperatures in the 70s. No significant early-season heat is likely through at least the first three weeks of May. The ENSO Region 1+2 anomaly was -0.4°C and the Region 3.4 anomaly was +0.3°C for the week centered around May 8. For the past six weeks, the ENSO Region 1+2 anomaly has averaged -0.08°C and the ENSO Region 3.4 anomaly has averaged +0.73°C. Neutral conditions are now developing. The SOI was +6.30 today. The preliminary Arctic Oscillation (AO) was +1.268 today. Based on sensitivity analysis applied to the latest guidance, there is an implied 58% probability that New York City will have a warmer than normal May (1991-2020 normal). May will likely finish with a mean temperature near 63.8° (0.6° above normal).
  9. donsutherland1
    It’s developing but I doubt that it has altered atmospheric patterns this early in its evolution.
  10. donsutherland1
    It just turned positive in recent days. Wave lengths are also shorter.
  11. donsutherland1
    Tomorrow will be partly to mostly sunny and milder with the temperature returning to the upper 60s across much of the area. Afterward, much of the week will likely see temperatures in the 70s. No significant early-season heat is likely through at least the first three weeks of May. The ENSO Region 1+2 anomaly was 0.8°C and the Region 3.4 anomaly was +0.5°C for the week centered around May 1. For the past six weeks, the ENSO Region 1+2 anomaly has averaged -0.08°C and the ENSO Region 3.4 anomaly has averaged +0.85°C. The ongoing basinwide El Niño event is fading. Neutral conditions could develop later in the spring. The SOI was -10.63 today. The preliminary Arctic Oscillation (AO) was +1.120 today. Based on sensitivity analysis applied to the latest guidance, there is an implied 56% probability that New York City will have a warmer than normal May (1991-2020 normal). May will likely finish with a mean temperature near 63.8° (0.6° above normal).
  12. donsutherland1
    Clouds and rain finally gave way to sunshine in New York City making for a nice late afternoon and early evening.
  13. donsutherland1
    Updated geomagnetic activity forecast: :Product: 3-Day Forecast :Issued: 2024 May 12 0030 UTC # Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center # A. NOAA Geomagnetic Activity Observation and Forecast The greatest observed 3 hr Kp over the past 24 hours was 9 (NOAA Scale G5). The greatest expected 3 hr Kp for May 12-May 14 2024 is 9.00 (NOAA Scale G5). NOAA Kp index breakdown May 12-May 14 2024 May 12 May 13 May 14 00-03UT 7.67 (G4) 6.00 (G2) 4.67 (G1) 03-06UT 7.67 (G4) 6.67 (G3) 4.33 06-09UT 8.00 (G4) 6.67 (G3) 3.00 09-12UT 9.00 (G5) 5.67 (G2) 3.00 12-15UT 8.67 (G4) 4.67 (G1) 2.67 15-18UT 8.00 (G4) 3.67 2.67 18-21UT 7.00 (G3) 3.67 3.00 21-00UT 7.00 (G3) 4.00 3.33
  14. donsutherland1
    Tomorrow will be mainly cloudy with some scattered showers and somewhat cooler readings. Highs should reach the upper 50s in the New York City area and upper 50s and lower 60s in the Philadelphia area. Much of next week will likely see temperatures in the 70s with no significant early-season heat likely. The ENSO Region 1+2 anomaly was 0.8°C and the Region 3.4 anomaly was +0.5°C for the week centered around May 1. For the past six weeks, the ENSO Region 1+2 anomaly has averaged -0.08°C and the ENSO Region 3.4 anomaly has averaged +0.85°C. The ongoing basinwide El Niño event is fading. Neutral conditions could develop later in the spring. The SOI was -10.25 today. The preliminary Arctic Oscillation (AO) was +0.545 today. Based on sensitivity analysis applied to the latest guidance, there is an implied 55% probability that New York City will have a warmer than normal May (1991-2020 normal). May will likely finish with a mean temperature near 63.8° (0.6° above normal).
  15. donsutherland1
    For now, the forecast calls for G3 geomagnetic activity at Monday 6z:
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