Dark Star Posted October 27, 2024 Share Posted October 27, 2024 1 hour ago, IrishRob17 said: Because the temp is taken at around 5 feet above ground level, at least official temps are, and I doubt anyone has a weather station with the temp sensor at ground level. How about rooftops with frost? Link to comment Share on other sites More sharing options...
psv88 Posted October 27, 2024 Share Posted October 27, 2024 28 minutes ago, uofmiami said: Not with the wind staying up. I think we de couple. Link to comment Share on other sites More sharing options...
IrishRob17 Posted October 27, 2024 Share Posted October 27, 2024 21 minutes ago, Dark Star said: How about rooftops with frost? The same idea applies, radiant heat loss, it's science. Link to comment Share on other sites More sharing options...
Dark Star Posted October 27, 2024 Share Posted October 27, 2024 50 minutes ago, IrishRob17 said: The same idea applies, radiant heat loss, it's science. Wait, you just implied that the temperature at ground level is different than where it is officially observed, a few feet above the ground. Then I asked what about frost that forms at higher levels even though the temperature is above freezing. I understand radiant heat loss... Link to comment Share on other sites More sharing options...
WestBabylonWeather Posted October 27, 2024 Share Posted October 27, 2024 It’s dusty outside Link to comment Share on other sites More sharing options...
IrishRob17 Posted October 27, 2024 Share Posted October 27, 2024 16 minutes ago, Dark Star said: Wait, you just implied that the temperature at ground level is different than where it is officially observed, a few feet above the ground. Then I asked what about frost that forms at higher levels even though the temperature is above freezing. I understand radiant heat loss... So you asked a question about rooftop frost when the temp is above freezing when you already knew the answer. Ok, noted. Link to comment Share on other sites More sharing options...
bluewave Posted October 27, 2024 Share Posted October 27, 2024 ISP tied the lowest October dew point on record at only 12°. The relative humidity was 2nd lowest at 17%. So places like the Pine Barrens can experience some strong radiational cooling tonight. MacArthur/ISP MOSUNNY 57 12 17 https://mesonet.agron.iastate.edu/plotting/auto/?_wait=no&q=153&network=NY_ASOS&zstation=ISP&month=oct&sday=1027&eday=1231&var=min_dwpf&_r=t&dpi=100&_fmt=png 2 Link to comment Share on other sites More sharing options...
donsutherland1 Posted October 27, 2024 Share Posted October 27, 2024 Tomorrow will be another fair but chilly day. Temperatures will top out in the middle and upper 50s after starting in the 30s outside New York City and lower 40s in New York City. Afterward, it will warm up quickly early next week. The month could end with widespread temperatures well into the 70s. Through today, New York City has seen just a trace of rainfall for October. The old record low figure through October 27 was 0.02" in 1947. At Philadelphia, rainfall has also been a trace. The prior record was 0.05", which was set in 1947. Today is Philadelphia's 29th consecutive day with no measurable precipitation. That ties the record streak of 29 days set during October 11 through November 8, 1874. That record will very likely be broken tomorrow. Precipitation in the northern Mid-Atlantic region will likely remain below to much below normal through October. As a result, October monthly and all-time monthly record low precipitation amounts will likely be approached or broken in parts of the region. Select October and Monthly Record Low Precipitation Amounts: Allentown: October: 0.15", 1963 Monthly: 0.09", May 1964 Period of Record: January 1912-Present New York City: October: 0.14", 1963 Monthly: 0.02", June 1949 Period of Record: January 1869-Present Newark: October: 0.21", 1963 Monthly: 0.07", June 1949 Period of Record: January 1893-Present Philadelphia: October: 0.09", 1924 and 1963 Monthly: 0.09:, October 1924 and October 1963 Period of Record: November 1871-Pesent Trenton: October: 0.05", 1963 Monthly: 0.05", October 1963 Period of Record: September 1865-Present Wilmington, DE: October: 0.05", 1924 Monthly: 0.05", October 1924 Period of Record: January 1894-Present The NAO fell to a preliminary -2.751 on September 24th (all-time September record: -2.371, September 12, 1971). That was the 9th lowest value on record. La Niña winters following September cases where the NAO fell to -1.900 or below featured a predominantly positive NAO. The most recent such winters were 2016-2017 and 2022-2023. The mean temperatures for those winters in New York City were 39.3° and 41.0° respectively. The 1991-2020 normal value is 36.2°. A warmer outcome is favored by the October run of the C3S multi-model forecast for Winter 2024-2025. The ENSO Region 1+2 anomaly was -0.1°C and the Region 3.4 anomaly was -0.3°C for the week centered around October 16. For the past six weeks, the ENSO Region 1+2 anomaly has averaged -0.30°C and the ENSO Region 3.4 anomaly has averaged -0.33°C. Neutral ENSO conditions will likely evolve into a La Niña event during the late fall. The SOI was +13.54 today. The preliminary Arctic Oscillation (AO) was +1.421 today. Based on sensitivity analysis applied to the latest guidance, there is an implied near 100% probability that New York City will have a warmer than normal October (1991-2020 normal). October will likely finish with a mean temperature near 60.5° (2.6° above normal). 2 Link to comment Share on other sites More sharing options...
lee59 Posted October 27, 2024 Share Posted October 27, 2024 Some temperatures already dropping to the low and middle 40s. If it stays completely clear with light wind, should be lots of areas, outside the urban areas, with frost. Link to comment Share on other sites More sharing options...
psv88 Posted October 27, 2024 Share Posted October 27, 2024 45 minutes ago, lee59 said: Some temperatures already dropping to the low and middle 40s. If it stays completely clear with light wind, should be lots of areas, outside the urban areas, with frost. 42 already. We going to frost Link to comment Share on other sites More sharing options...
jm1220 Posted October 28, 2024 Share Posted October 28, 2024 2 hours ago, psv88 said: 42 already. We going to frost Yep, winds calm. Some places a little lower in elevation than me are in the 30s already. Link to comment Share on other sites More sharing options...
MJO812 Posted October 28, 2024 Share Posted October 28, 2024 51 here Link to comment Share on other sites More sharing options...
Stormlover74 Posted October 28, 2024 Share Posted October 28, 2024 38 Link to comment Share on other sites More sharing options...
lee59 Posted October 28, 2024 Share Posted October 28, 2024 Got down to 36.7 at 2a.m. Then it clouded over and the temperature started rising. Link to comment Share on other sites More sharing options...
BxEngine Posted October 28, 2024 Share Posted October 28, 2024 Hit 32 for a few minutes…still some time to drop another 1/2 degree or so, but i think we already bottomed out judging by the stations around me. Link to comment Share on other sites More sharing options...
Allsnow Posted October 28, 2024 Share Posted October 28, 2024 Growing season over for NJ 1 Link to comment Share on other sites More sharing options...
SnoSki14 Posted October 28, 2024 Share Posted October 28, 2024 39 minutes ago, Allsnow said: Growing season over for NJ Things have looked dead for a while with the drought. Not much rain either expected though dry streak should end on Friday. Ridge keeps reloading east. Link to comment Share on other sites More sharing options...
bluewave Posted October 28, 2024 Share Posted October 28, 2024 A top 10 warmest October for spots like JFK with the average high in 2nd place. Time Series Summary for JFK INTERNATIONAL AIRPORT, NY - Month of OctClick column heading to sort ascending, click again to sort descending. 1 2017 71.0 0 2 2024 70.5 4 3 1971 70.2 0 4 2007 70.1 0 5 2021 69.9 0 6 1963 69.2 0 7 1995 69.0 0 8 1949 68.7 0 9 1984 68.6 0 10 1990 68.4 0 Time Series Summary for JFK INTERNATIONAL AIRPORT, NY - Month of OctClick column heading to sort ascending, click again to sort descending. 1 1971 63.5 0 2 2017 63.2 0 3 2021 63.0 0 - 2007 63.0 0 4 1984 61.7 0 5 1995 61.6 0 6 1990 61.3 0 7 2024 61.1 4 - 1949 61.1 0 8 1954 60.1 0 9 2013 60.0 0 10 1975 59.9 0 Link to comment Share on other sites More sharing options...
FPizz Posted October 28, 2024 Share Posted October 28, 2024 30.2 when I left at 6:45. May have dipped to 29 after that. Link to comment Share on other sites More sharing options...
psv88 Posted October 28, 2024 Share Posted October 28, 2024 36 for the low. We wait until November for first frost/freeze. Link to comment Share on other sites More sharing options...
IrishRob17 Posted October 28, 2024 Share Posted October 28, 2024 2 hours ago, BxEngine said: Hit 32 for a few minutes…still some time to drop another 1/2 degree or so, but i think we already bottomed out judging by the stations around me. Have you been below freezing yet this season? 31 for the low here. Link to comment Share on other sites More sharing options...
forkyfork Posted October 28, 2024 Share Posted October 28, 2024 i have yet to go below 40 1 2 2 Link to comment Share on other sites More sharing options...
SACRUS Posted October 28, 2024 Share Posted October 28, 2024 50 / 26 off a low of 30 and the coolest for the next 7 - 10 days. Mid / upper 60s a bit warmer tomorrow but more clouds Tue / Wed. Wed upper 70s / near 80. Thu upper near / low 80s. Mostly dry front Thu evening into Fri morning. Brief cool down this coming weekend before more ridging and overall above normal into the 6th. Next shot of rain with trough/front between 6 - 8. Dry for the next week. Link to comment Share on other sites More sharing options...
SACRUS Posted October 28, 2024 Share Posted October 28, 2024 Ridge pumps next week 2 Link to comment Share on other sites More sharing options...
SACRUS Posted October 28, 2024 Share Posted October 28, 2024 Front / trough Nov 6-8? Link to comment Share on other sites More sharing options...
Allsnow Posted October 28, 2024 Share Posted October 28, 2024 1 Link to comment Share on other sites More sharing options...
TheClimateChanger Posted October 28, 2024 Share Posted October 28, 2024 17 minutes ago, Allsnow said: Interesting. Went to take a look at this alleged streak in 1924, and one thing that caught my eye: High of 66, low of 45, with a general heavy frost throughout the Park. Wtf? I feel like you need to chop 10F off these old records to make them comparable to modern day readings. What a joke! Link to comment Share on other sites More sharing options...
TheClimateChanger Posted October 28, 2024 Share Posted October 28, 2024 5 minutes ago, TheClimateChanger said: Interesting. Went to take a look at this alleged streak in 1924, and one thing that caught my eye: High of 66, low of 45, with a general heavy frost throughout the Park. Wtf? I feel like you need to chop 10F off these old records to make them comparable to modern day readings. What a joke! Maybe at the top of the stone castle! But zero chance with a properly sited station 5 feet AGL. I wonder how many record lows New York was cheated out of in that era due to improper siting? 1 Link to comment Share on other sites More sharing options...
BxEngine Posted October 28, 2024 Share Posted October 28, 2024 33 minutes ago, IrishRob17 said: Have you been below freezing yet this season? 31 for the low here. Nope, have hit 32 twice and 33 a few. Until the leaves are completely down i tend to run a degree or two warmer than some other local spots, thereafter im usually a degree colder. 3 Link to comment Share on other sites More sharing options...
MANDA Posted October 28, 2024 Share Posted October 28, 2024 32 minutes ago, SACRUS said: Ridge pumps next week Just a nasty look all around. Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now