Cloudy, mild to warm, morning rain, evening heavy rain with thunderstorms update for Halloween Thursday, October 31 2019 from West Rockville Maryland HAPPY HALLOWEEN !!!!
On Thursday, we had cloudy skies all day, with a bit milder temperatures in the morning and much milder in the afternoon and evening, and evening heavy rain in thunderstorms (1.78 inches). A tornado watch was posted for a good part of the afternoon and evening till midnight. Severe thunderstorm and flood warnings were posted at various times during the evening. The highs reached the mid 70s by mid-evening just prior to the storms coming in after lows in the mid-upper 50s in the morning hours then dropped into the upper 40s by midnight observation time after the strong cold front passed through . Dew point temperatures reached the low 70s in the mid afternoon but fell through the evening into the mid 40s by midnight observation time.
The maximum temperature was 75.6 degrees at 2042.
The minimum temperature was 49.3 degrees at 2359.
The dew point temperatures ranged from a high of 71 degrees @ 1555 down to a low of 45 degrees @ 2354.
The relative humidity values ranged from a high of 97% @ 0818 down to a low of 83% @ 2022.
The barometric pressure ranged from a high of 30.07 inches @ 0002 down to a low of 29.49 inches @ 2031.
The highest daily peak wind gust recorded across the street on the roof of the new USG building was 53 MPH that was recorded at 2148 from the NW. 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 1.78 inches of precipitation on Thursday so my final October monthly total is 6.32 inches. The year-to-date total is now 44.57 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.
Quite a busy day on Halloween! The impending severe weather took up a lot of my time, monitoring the advancing cold front and keeping close track of the rapidly changing statistics, especially in the evening. I gave out 107 trivia questions to our weekly gathering in the next building over. I managed to get back to my building after the festivities finished just short of 2100 just ahead of the heavy storms (it had actually started to lightly rain while walking back) I had the rest of the leftover baked chicken and broccoli cheddar rice a roni in between all the activity. I also managed to fit in a shower before going to trivia. I needed it!!!
Friday through Monday should be sunny and chilly, with highs in the low to mid 50s and lows in the low 30s as we start off the month on a colder November note, with a freeze warning posted for Friday and Sunday
At Midnight Thursday, I observed clearing skies with a falling temperature of 49.3 degrees, relative humidity 85%, pressure rising at 29.78 inches with a dew point temperature of 45 degrees. Winds were averaging 14 MPH from the NW.
Currently at 1723 late afternoon Friday the temperature is 48.5 degrees under sunny skies, relative humidity at 51%, barometric pressure rising at 30.28 inches, and the dew point temperature at 31 degrees. Winds are averaging 9 MPH over the past 10 minutes from the WNW. Peak wind gust since midnight has been 45 MPH from the NW at 0206.
Good afternoon from the walrus on this sunny, crisp first day of November Friday.