Hot and Humid on Friday July 5 and Saturday July 6 with Partly Cloudy  to Cloudy skies and occasional thunderstorms and then a bit cooler but Humid and Cloudy with light evening showers on Sunday, July 7, 2019 update for West Rockville Maryland

Hot and Humid on Friday July 5 and Saturday July 6 with Partly Cloudy  to Cloudy skies and occasional thunderstorms and then a bit cooler but Humid and Cloudy with light evening showers on Sunday, July 7, 2019 update for West Rockville Maryland

Well with the holiday weekend over, I find that I am two reports behind (Friday and Saturday), plus the one for this Sunday. So I will do my usual condensed version that will cover all 3 days. 

Friday was almost as hot as Thursday and just as humid, but with only light showers (0.03 inches) during the partly cloudy afternoon.  We  managed to barely get over 90 in the later mid-afternoon after an early morning min in the lower mid 70s. We slid down slowly through the 80s muggy air, only getting a bit below 80 just at midnight. The dew point temperature started out in the lower 70s in the very early AM but rose uncomfortably into the upper 70s by late morning and only slid slowly down in the evening back into the mid 70s by midnight observation time. 

The maximum temperature was 90.1 degrees at 1640.

The minimum temperature was 73.2 degrees at 0434.

The dew point temperatures ranged from a low of 72 degrees @ 0000 up to a high of 78 degrees @ 1044.

The relative humidity values ranged from a high of 96% @ 0211 down to a low of 61% @ 1628.

The barometric pressure ranged from a high of 30.13 inches @ 0856 down to a low of 30.02 inches @ 1744.

There was 0.03 inches of precipitation on Friday. 

Saturday was hotter than Friday and just as humid, partly cloudy skies (see today’s featured image) during the day and mostly cloudy at night with two rounds of showers/thunderstorms (0.95 inches total) during a stormy evening (1900-1930 and 2045-2100 approx) but remaining basically dry during the partly cloudy afternoon.  We  managed to  get well over 90 in the late afternoon a few hours before the first rains hit, fueling the evening storms. The early morning min in the lower mid 70s then headed upwards into the 90s during most of the afternoon. The evening showers managed to cool us off into the lower mid 70s once again and held that way till midnight observation.  The dew point temperature started out in the lower mid 70s in the very early AM but rose uncomfortably into the upper 70s by the early afternoon then back down into the low 70s during the shower activity, holding there till midnight.

The maximum temperature was 92.7 degrees at 1724.

The minimum temperature was 73.6 degrees at 2357.

The dew point temperatures ranged from a high of 78 degrees @ 1335 down to a low of 71 degrees @ 1920.

The relative humidity values ranged from a low of 56% @ 1730 up to a high of 95% @ 2335.

The barometric pressure ranged from a high of 30.04 inches @ 0000 down to a low of 29.84 inches @ 1745.

There was 0.95 inches of precipitation on Saturday. 

Sunday was not as warm as Friday or Saturday but just as humid with mostly cloudy skies and only light late afternoon/early evening (1730-1800 approx) showers (0.07″) falling. We failed to reach 90 so our modest 5 day 90 or greater streak was broken as we only reached the mid 80s after a still muggy low 70s min in the early AM. We only fell slowly once again with temps only falling to the mid 70s by midnight. The dew point temperature started out in the low 70s in the very early AM but rose uncomfortably into the upper mid 70s by the late afternoon then back down into the lower 70s by midnight.

The maximum temperature was 85.8 degrees at 1521.

The minimum temperature was 72.0 degrees at 0341.

The dew point temperatures ranged from a low of 71 degrees @ 0138 up to a high of 77 degrees @ 1722.

The relative humidity values ranged from a high of 95% @ 0000 down to a low of 68% @ 1526.

The barometric pressure ranged from a high of 29.94 inches @ 1210 down to a low of 29.85 inches @ 1702.

There was 0.07 inches of precipitation on Sunday. A total of 2.41 inches of rain has now been recorded in July. The year-to-date total is now 25.07 inches.

My current online data (except for rainfall/snowfall – use the cocorahs link shown below for that dataset) is 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. Station ID MD-MG-115 on 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 every day of late 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.

Over the holidays I had some cereal, some fancy omelettes with onions, sausage, mushrooms and 3 types of cheese with a toasted bagel, then dinners were meat loaf and mashed potatoes (Sunday) and one night (Saturday) where I crashed and only ate breakfast, and then on Friday I had a bunch of leftovers. I caught a lot of baseball over the weekend, and even some World Cup soccer action and lots of movies. 

Clouds and rain is expected for Monday, with highs in the upper 70s and lows in the lower 60s. There is a flash flood watch out for a few more hours in parts of central Maryland, north of me. Storms have been staying in place due to weak steering currents just to my north towards Frederick and Hagerstown and points west and north. 

A slightly cooler trend should continue all week, with mid-high 80s expected through Friday, with lows in the mid-upper 60s. Partly to mostly sunny skies should predominate after this cloudy Monday, with only further chances for rain on Thursday with the usual showers/thundershowers. 

Midnight Sunday recorded a temperature of a muggy 76.1°, relative humidity 90%, pressure falling at 29.89 inches and a dew point temperature of 73.0° under cloudy skies.

Currently at 0627 the temperature is 73.6° under cloudy skies, relative humidity at 95%, barometric pressure steady at 29.85 inches, and the dew point temperature at 72°. So far a very unofficial 0.03″ of rain has tipped in the VP2 gauge since midnight. Stay tuned for my official 4 inch gauge total with Monday’s report. 

Good morning from the walrus on this cloudy, muggy Monday. Today’s featured (attached) image were taken on Saturday, before the evening storms moved in. Interesting to note in the picture that it is facing south, from out in the parking lot by the rain gauge, of a nice towering cumulus at about 1400 EDT. This and many other images of the clouds at the time most of them developed into big storms later on that day. 

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