Sunday warmed up even more than Saturday as max temps approached the oppressive 90° mark with dew points climbing into the muggy 70s under partly cloudy skies. There was no real threat for any showers or thundershowers during the day. Temperatures rose from the mid 60s in the early AM to the upper 80s by mid-afternoon with dew point values climbing into the mid 70s

The maximum temperature was 88.2° at 1601.

The minimum temperature was 64.6° at 0619.

The dew point temperatures ranged from a low of 61° @ 0117 up to a high of 74° @ 1449.

The relative humidity values ranged from a high of 92% @ 0636 down to a low of 53% @ 1839.

The barometric pressure ranged from a high of 30.04″ @ 0707 down to a low of 29.86″ @ 1850.

There was no precipitation falling on Sunday. May has a total rainfall of 4.68″. The year-to-date total is 18.73″.

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 at times 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 should have highs in the mid 80s with partly cloudy skies and a chance of showers and thundershowers as a cold front passes through our area, with lows reached late in the day in the mid 50s after the front clears out.

Tuesday looks partly cloudy and cooler, with highs in the low 70s and lows in the low 50s.

Wednesday looks to be cloudy and a bit warmer, with highs in the mid 70s and lows in the upper 50s.

Thursday, Friday, and Saturday look to bring some heat back under partly cloudy, dry skies with highs in the mid 80s and lows in the low-mid 60s.

Midnight Sunday recorded a temperature of 79.8°, relative humidity 62%, pressure falling at 29.90″ and a dew point temperature of 66° under partly cloudy skies.

Currently at 0828 the temperature is 75.1° under mostly sunny skies (some scattered cumulus noted of late), relative humidity at 75%, barometric pressure steady at 29.90″, and the dew point at 67°. Cumulus clouds should start building more as daytime heating gets going and possibly build into thunderstorms later in the afternoon and/or evening. 

Good morning from the walrus on this warm Sunday. One more image of storm developing clouds from Saturday night is to be noted as our featured image of the day.  This picture highlights the high cloud blowoff from the embedded thunderstorm cell that can be noted at the bottom of the picture. With the picture being taken around sunset, the brilliance of the high cloud tops is especially striking.