Sunday AM was mostly clear early but clouds developed as the day wore on, with an evening strong thunderstorm affecting my immediate area in the early evening between about 1800 and 1915 with brief heavy rain spurts (heaviest rain rates appear to have occurred between 1825-1845), high winds, frequent lightning and possible hail. There were numerous reports of hail in the county and the region with 1 1/4 inch hail reported 8 miles to my north in Damascus by the official observer there, and a big lightning incident with numerous injuries at a state park pavilion in nearby Northern Virginia (Leesylvania State Park near Woodbridge). Temperatures started out in the low 60s in the early AM, rising to the low 80s by the mid-afternoon, then slid down into the 70s then 60s in the evening as the cooler air kicked in behind the front that was marked by the storm passage. Dew point temperatures started out in the upper 50s early, then rose by mid-afternoon into the mid 60s, holding there during the thunderstorm then slowly dropping off into the low 60s during the post-storm evening hours. 

The maximum temperature was 82.5° at 1442.

The minimum temperature was 60.9° at 0615.

The dew point temperatures ranged from a low of 57° @ 0050 up to a high of 67° @ 1615.

The relative humidity values ranged from a low of 55% @ 1500 up to a high of 95% @ 2255.

The barometric pressure ranged from a high of 29.84 in. @ 0025 down to a low of 29.70 in. @ 1600.

0.53 inches of precipitation fell on Sunday. There has now been 0.53 inches of rain recorded so far in June. The year-to-date total is now 20.82 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, normally just about in real-time now 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 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.

Monday will be a really pretty day with plenty of sun and a few scattered clouds around at times, dry and quite pleasant temperatures, with highs around 70° and lows in the upper 40s.

Tuesday should be partly sunny with highs in the mid 70s and lows in the lower 60s.

Wednesday should be cloudy and a bit warmer with showers and possibly storms at times, highs in the low 80s and lows in the mid 60s.

Thursday should be partly to mostly cloudy, warm and mostly dry with highs in the mid 80s and lows in the mid 60s.

Friday should be mostly cloudy, not as warm but remaining dry with highs in the upper 70s and lows in the mid 60s. Saturday should be partly to mostly cloudy with highs around 80° and lows in the low 60s. 

Midnight Sunday recorded a temperature of 64.5°, relative humidity 94%, pressure rising at 29.83 in. and a dew point temperature of 62.7° under clearing skies.

Currently at 0900 the temperature is 63.4° under clear, sunny skies, relative humidity at 70%, barometric pressure rising at 29.99 inches, and a dew point of 53°.

Good morning from the walrus on this Monday. Today’s featured image was taken just behind the rain gauge looking west, just after sunset Sunday evening with a clear sky and the usual color from the retreating sun on the horizon.