Wednesday was mostly cloudy and colder than expected, with high temps only in the mid 30s vs. forecasted high temps in the upper 40s. Clouds were held in place most all day with a gradually more moist easterly flow, which dammed up against the mountains to the west, causing the normally colder mountain areas to be actually warmer and much sunnier. An interesting contrast pattern for the day was the gradual increase in the humidity all day yet a contrasting gradual decrease all day of the barometric pressure.

The maximum temperature was 37.1° at 1801.

The minimum temperature was 29.4° at 0707.

The dew point temperatures ranged from a low of 19° @ 0300 up to a high of 31° @ 2315.

The relative humidity values ranged from a low of 58% @ 0000 up to a high of 83% @ 2345.

The barometric pressure ranged from a high of 30.42″ @ 0000 down to a low of 29.98″ @ 2359.

Wednesday had no precipitation. My February monthly total is still 3.44″ with my year-to-date total at 7.02″.

No snow/sleet fell on Wednesday. My February total snowfall is still 7.3″ with the seasonal total at 24.3″.

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. For example during our big snowstorm back in mid-January the snow didn’t melt at all during the storm, and only started to record precipitation amounts a few days later when the sun and above freezing temperatures started to melt the snow. This scenario also developed nicely a week ago as the sun melted most if not all of the snow in the tipping bucket rain gauge. 0.86″ passed through the tipping bucket all day Thursday even though no precipitation fell from the sky.

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. I also use a snow stake outside my balcony window to get an idea on how much snow has fallen (while it is snowing) and how much snow is on the ground as I did this past Wednesday.

Thursday should be partly cloudy with high temps in the low 40s, lows in the upper 20s.

Clouds with a bit of light snow expected to fall early on Friday, with highs in the mid-upper 30s and lows in the low 30s. Right now the latest prediction is for 2-4″ to fall.

Saturday should be cloudy and milder, highs around 50° with lows around 30°.

Sunday should be cloudy and cooler with highs around 40° and lows in the upper 20s with rain expected.

Monday will partially clear out, turning colder with highs in the low-mid 30s and lows in the mid teens.

Midnight Wednesday night found the temperature at 36.0°, relative humidity 83%, pressure falling at 29.98″ and the dew point at 31.3° under a partly cloudy sky.

Currently at 0657 the temperature is 38.4° under clear skies, relative humidity at 78%, barometric pressure rising at 30.11″, and the dew point at 32°.

Good morning from the cleared out walrus on this dry Thursday.