A partly sunny, hot update for West Rockville Maryland for Friday May 4, 2018

A partly sunny, hot update for West Rockville Maryland for Friday May 4, 2018

Friday was still hot, cracking the 90° mark for the second day in a row under partly sunny, mostly dry skies except for a light shower (0.01″) in the early evening . The Friday maximum temperature reached 89.6° @ 1640 while the Friday minimum temperature was only 66.2° @ 0558. The dew point temperatures continued to rise on Friday, ranging from a high of 67° @ 1123 down to a low of 57° late @ 2237 after the FROPA. The barometric pressure lowered from yesterday, reaching the highest value of the day of 30.01″ @ 0841 down to a low of 29.85″ later @ 1811. The relative humidity rose a bit on the high side, ranging from a high of 82% at 0528 down to a low of 35% at 1612.

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 does not report snow data, and reflects what is recorded automatically through the tipping bucket VP2 gauge. I use the data I post to cocorahs as my “official” precipitation total each day.

Friday was partly sunny and still hot, with high temps just reaching the 90° mark (when rounded to the nearest degree) with lows only in the mid 60s as we continue our early May “mini-heat wave”. Overnight into Friday we had clear skies early and mild temps, with lows only falling into the mid 60s, but with a high overcast developing towards sunrise that continued through the AM . Friday afternoon was hot and sunny early but clouded up later in the afternoon as a cold front approached from the NW. Scattered light showers developed in the area and left 0.01″ in the early evening. Saturday should cool off quite a bit under cloudy skies and a 40 POP for showers, highs around 70° and lows in the low-mid 50s. Sunday continues the cloudy skies and even cooler temps, with an 80 POP for rain, highs in the mid 60s and lows in the low 50s. Monday should be mostly sunny with highs around 70° and lows in the upper 40s. Tuesday should be partly cloudy with highs in the low 70s and lows around 50°. Sunny on Wednesday with highs in the mid 70s and lows in the lower 50s.

On the Channel 4 radar at 0630 there are scattered showers in our area running from SW to NE. Further to the WSW more rain is found through parts of WV, KY and TN that should keep us in at least a threat of rain all weekend.

As of 0630 Saturday, 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, cooler and calm – looks like a wet one this weekend !!

Station Relative Location Temp   RH   DP     BP      Wind High/Low temp for Friday
VP2           Ground          65.7° 55%  49° 30.08″R   NA    89.6°/66.2°

The total precipitation in the cocorahs gauge was 0.01″ through midnight Friday. The VP2 tipping bucket rain gauge under my balcony recorded 0.00″ through midnight Friday.

Friday’s precipitation was 0.01″
May precipitation is 0.01″
Year-to-date precipitation total is 11.75″

WX Bug Lakewood 4500 ft, 65° 48% 46° 30.11″R NNW 3 G NNW 9
                            140° from station                       92°/66°
The Lakewood rain gauge reported 0.00″ of precipitation on Friday. May shows 0.00″ and there is an unchanged 2018 year-to-date (YTD) amount of 14.81″. I still believe at times the great disparity 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 Friday night the temperature from the VP2 was 75.8° RH 55% BP 29.97″R DP 58.5°
Cloudy, still warm, dry at 2400

Good morning from the cloudy, cooler, but dry (for the moment – see featured image) home of the walrus early on this Saturday. With my daughter and grandson taking up much of my time through most of this weekend, I may or may not be able to regularly report here as much over the weekend so don’t worry about me. We look to have some fun and more catching up to do.

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