Colder, windy, partly cloudy brief snow flurry Friday November 8, cold, freezing Saturday, November 9 and partly cloudy, milder Sunday, November 10, 2019 update from West Rockville Maryland

Colder, windy, partly cloudy brief snow flurry Friday November 8, cold, freezing Saturday, November 9 and partly cloudy, milder Sunday, November 10, 2019 update from West Rockville Maryland

Another one of those brief hiatus sessions from me over the past three days,so as usual I am combining details from all 3 days into this one slightly condensed post.

Friday was sharply colder, very breezy at times, esp in the AM accompanied by brief snow flurries in the mid AM, then partly cloudy and remaining cold the rest of the day. High temperatures on Friday were in the low 40s in the very early AM, falling slowly through the 30s most of the day into the low 30s by late evening for our daily low and is our first freezing temperature of the season This year’s frost free period was 221 days, between April 1 and November 8.  Dew point temperatures were in the mid 30s at midnight but dropped through the lower 30s and 20s through the day till late afternoon. 

The maximum temperature was 43.8 degrees at 0000. (PM Max 40.2 degrees at 1435) 

The minimum temperature was 30.7 degrees at 2359. (AM Min 35.0 degrees at 0720)

The dew point temperatures ranged from a high of 37 degrees @ 0000 down to a low of 20 degrees @ 1635.

The relative humidity values ranged from a high of 78% @ 0000 down to a low of 48% @ 1635.

The barometric pressure ranged from a low of 30.13 inches @ 0000 up to a high of 30.41 inches @ 2130.

The highest daily peak wind gust recorded across the street on the roof of the new USG building was 24 MPH that was recorded at 0111 from the NW.

There was a trace of precipitation from snow on Friday.

Saturday was still cold and sunny with a bit lighter winds and dry. High temperatures on Friday were in the low 40s around midday with lows in the upper mid 20s in the early AM  Dew point temperatures were in the 20s all day, ranging from the low 20s in the early AM to the upper 20s by late evening.  

The maximum temperature was 42.3 degrees at 1217.  

The minimum temperature was 27.4 degrees at 0630.

The dew point temperatures ranged from a low of 21 degrees @ 0710 up to a high of 29 degrees @ 2320.

The relative humidity values ranged from a high of 80% @ 0610 down to a low of 49% @ 1250.

The barometric pressure ranged from a high of 30.40 inches @ 0000 down to a low of 30.20 inches @ 2220.

The highest daily peak wind gust recorded across the street on the roof of the new USG building was 18 MPH that was recorded at 1045 from the SW.

There was no precipitation on Saturday.

Sunday warmed up under partly cloudy skies while remaining dry. High temperatures on Sunday were in the mid 50s in the early afternoon after very early AM lows in the mid 30s. Dew point temperatures were in the upper 20s at the very start of the day, rising into the upper 30s by mid afternoon.  

The maximum temperature was 55.5 degrees at 1350.  

The minimum temperature was 35.4 degrees at 0056.

The dew point temperatures ranged from a low of 29 degrees @ 0000 up to a high of 38 degrees @ 1559.

The relative humidity values ranged from a low of 46% @ 1356 up to a high of 82% @ 2347.

The barometric pressure ranged from a high of 30.20 inches @ 0000 down to a low of 30.05 inches @ 1515.

The highest daily peak wind gust recorded across the street on the roof of the new USG building was 14 MPH that was recorded at 1218 from the SW. Please remember that this anemometer is at a non-standard height of 60 feet above ground level (AGL), which can cause greater wind speeds than at the standard 33 feet AGL.

There was no precipitation on Sunday. My November monthly total is 0.12 inches.  My monthly snowfall is a trace. The year-to-date precipitation total is 44.69 inches.

My current downstairs station data is now showing regularly on Weather Underground. My data is posted there every 5 minutes. My ID is KMDROCKV200 and my station is called Gardens of Traville. Data is online, available in real-time as it is being updated on a 5 minute interval. The web address for my data on weather underground is: https://www.wunderground.com/personal-weather-station/dashboard?ID=KMDROCKV200

I contribute my precipitation data daily to CoCoRaHS as Rockville 2.8 WNW, Station ID MD-MG-115 and can be found on the web at https://www.cocorahs.org

Please remember that my Weather Underground precipitation data reflects what is recorded automatically through the tipping bucket VP2 gauge, just as it does on WxLink 2.0. The tipping bucket has been producing erratic values on most days (when I have had rain that is) so should not be used except for general precipitation timing.

I actually use the data I post to CoCoRaHS from my 4 inch CoCoRaHS gauge I read manually as my official precipitation total each day.

The three day weekend period was full of activity. On Saturday we had the annual Herb Close ACON weather party at his home in Manchester MD, almost to the PA border in the very northern part of the state. About 15 of us Maryland weather observers and enthusiasts (Plus one from MA who used to live in Maryland) gathered in the mid-late afternoon and socialized/talking weather into the late evening plus chowed down on some great vittles. So great to see so many together in person instead of on email or phone. One of our really dedicated observers, Ray Muller, made some brief presentations to others on basic weather observing and forecasting techniques. I have included some pictures from the party as the featured image and the embedded image below. We had a great cake listing some of the observer partiers’ names and our govt weather agency NOAA most of us report to during severe/significant weather events. I managed to rest up the rest of the weekend over party leftovers and plenty of college and pro football and the beginning of college basketball season. 

A brief warmup on Monday into the above normal 60s and 40s under partly cloudy skies, then on Tuesday another shot of cold air should invade the region, with a chance of rain or snow showers possible with high temps falling through the 40s into the 30s, with 20s late.

Wednesday should feature the core of the cold, with lows in the low 20s and highs in the mid 30s under sunny to partly sunny skies.

Thursday should moderate some with highs in the low-mid 40s and lows in the upper 20s-mid 30s. 

At Midnight Sunday, partly cloudy skies with a temperature of 42.3 degrees, relative humidity 82%, pressure rising at 30.08 inches with a dew point temperature of 37 degrees. Winds averaged 1 MPH from the SE.

Currently at 0846 EST Monday the temperature is 46.0 degrees under a high thin overcast, relative humidity at 85%, barometric pressure steady at 30.12 inches, and the dew point temperature at 42 degrees. Winds are averaging 1 MPH over the past 10 minutes from the SE. Peak wind gust since midnight has been 9 MPH from the SE at 0315.

Good morning from the walrus on this changeable Veteran’s Day Monday. Today’s attached image shows partiers –  host Herb Close, Marty Brumback, Rick Holden and Bobby Miller.  Below image shows Ray Muller, Marty Brumback, Rick Holden and a somewhat cutoff Dan Hanson from MA. Below that is the NOAA/some of the observer partiers name cake mentioned above.   Sorry for the somewhat poor quality of the images. 

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