A cloudy, mild, muggy, slightly wet update for West Rockville Maryland for Tuesday , September 11, 2018

A cloudy, mild, muggy, slightly wet update for West Rockville Maryland for Tuesday , September 11, 2018

Tuesday made its small contribution (0.28″) to our wet week, how wet will depend on what kind of initial visit we get at the end of the week from Hurricane Florence which looks more like it will mostly be out of round 2 early next week. A cloudy day, with brief showers midday (1205-1235, max rain rate 2.97″/hour @ 1220) and dense early AM fog that hung around till the showers came in, temperatures held in the muggy upper 60s overnight and only rose into the low 70s, with the dew point hanging very close in number and pattern to this small variation. This small 3.2° diurnal range may wind up being the smallest one of the month. At what temperature does your condition description move from damp, to muggy, and then to humid? The Tuesday maximum temperature slowly climbed to 71.3° @ 1424, while the Tuesday minimum temperature was 68.1° recorded @ 0645. The dew point temperatures rose a bit on the low end, ranging from a high of 70° @ 0110 down to a low of 66° @ 2126. The barometric pressure rose from yesterday – the lowest value being 30.04″ @ 0403 up to a high of 30.18″ @ 2124. The relative humidity remained very high during the muggy day, ranging from a high of 98% @ 0110 down to a low of 92% at 1558.

Remember now you can get the VP2 data on Weatherlink. You can access the data through http://www.weatherlink.com/user/walrusman444 I am posting daily to weather underground. My ID is KMDROCKV200 and my station is called “Gardens of Traville.” Data is online, normally just about in real-time. The web address for my data on weather underground is: https://www.wunderground.com/personal-weather-station/dashboard?ID=KMDrockv200#history/ I contribute daily to cocorahs as Rockville 2.8 WNW, Station ID MD-MG-115 on https://www.cocorahs.org/ Please remember that Weather Underground precipitation data reflects what is recorded automatically through the tipping bucket VP2 gauge. I actually use the data I post to cocorahs from my 4″ cocorahs gauge I read manually as my “official” precipitation total each day.

I have been following the ever-changing updates to the track and intensity of Hurricane Florence, still steaming WNW @ 17 mph in the South Atlantic at last check. 

Tuesday was cloudy and damp with temps hanging around the 70° all day, with dense fog in the AM and brief mid-day showers. All week looks to be partly to mostly cloudy, humid, with scattered showers and storms each day of the week (50 POP today, 30 Thursday, and 60 POP Friday with only a 20 POP for isolated showers over the weekend.) High temps should be around 80° today and on Thursday, and mid 70s on all other days through Sunday. Low temps should be around 70° Wednesday and Thursday, then mid-upper 60s Friday through Sunday. Temperatures won’t be much of an issue this week, the rain will take center stage. It is now looking like not as serious of an affect by Florence in our immediate area at this time, but keeping close tabs on its forecasted track is quite prudent. Right now for our immediate area it doesn’t look like any effects from Florence won’t be till next week, as heavy rain from what will be the remnants of Florence by that time.

At 1246, Channel 4 radar is showing scattered light showers over parts of central PA, south-central VA and central WV at this time, moving slowly NE. All action from Florence is still well out to sea off the Carolina coast.

At 1246, the data from the VP2 (coming from the ground radiation shield about 4 feet off the ground just under and out from the balcony) and the Lakewood WX Bug station are as follows:

Cloudy skies, still very damp, warming up some.

Station Relative Location Temp  RH  DP     BP      Wind High/Low on Tuesday
VP2              Ground          76.1° 89% 73° 30.23″S NA     71.3°/68.1°

The total precipitation in the cocorahs gauge was 0.28″ though midnight Tuesday.
The VP2 tipping bucket recorded just about the same, with 0.27″.
Tuesday’s precipitation was 0.28″.
September precipitation total is now 4.78″.
Year-to-date precipitation total 42.86″

WX Bug Lakewood 4500 ft, 77° 89% 74° 30.24″R Calm G E 4
                              140° from station                Tue. Hi/Lo 72°/67°
The Lakewood rain gauge recorded 0.08″ of rain through midnight Tuesday. The September total precipitation total has been significantly adjusted once again showing 4.78″ with the 2018 year-to-date (YTD) amount now at 54.91″. I definitely continue to believe that at times the disparities between the Lakewood WX Bug station precipitation amount total for the month and year and my cocorahs gauge based data is that the Lakewood precip values are estimated/adjusted from radar.

At 2400 obs Tuesday night the temperature from the VP2 was 68.3° RH 93% BP 30.17″S DP 66.2°
Cloudy, foggy, muggy.

Good early afternoon from the cloudy and muggy home of the Walrus on this Wednesday. (Featured image taken earlier this morning, looking east from my rain gauge. Note all the yellow flowers along what is the edge of a “catch basin” just behind the gauge.) 

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