I keep running behind and have another 2 day (weekend) update to post today. We continue to change our weather depending on the position of this wandering stationary front that doesn’t look to move on out anytime soon, holding court to shape our weather for the entire upcoming week. Saturday was partly to mostly sunny, quite warm, and becoming more humid, with threats of storms late that hit other areas and not mine. Mother’s Day Sunday was spent in the clouds, on the cooler side of the front, with early AM showers (0.38″) featured along the front as it moved south. We remained cool and cloudy all day. The Saturday maximum temperature reached 88.3° @ 1741, while the Saturday minimum temperature was 62.3° @ 0658. The dew point temperatures rose quite a bit from Friday, ranging from a low of 55° very early @ 0004 up to a muggy high of 70° much later @ 1946. The barometric pressure was about the same as Friday, reaching the highest value of the day of 30.10″ @ 0854 down to a low of 29.91″ @ 1733. The relative humidity lowered a bit from Friday on the high side, ranging from a high of 86% at 0650 down to a low of 48% at 1553. The much cooler, cloudier Sunday maximum temperature reached only 69.4° very early @ 0000, while the Sunday minimum temperature was 59.6°, much later @ 1849. The dew point temperatures fell off a bit from Saturday, ranging from a high of 66° @ 1109 down to a low of 58° @ 1746. The barometric pressure rose a bit from Saturday, reaching the highest value of the day of 30.11″ @ 0923 down to a low of 30.01″ @ 1541. The relative humidity rose significantly from Saturday, ranging from a low of 77% at 0000 up to a high of 97% at 1101.

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.

Saturday was sunny and quite warm, temps reaching the upper 80s but with clouds increasing mid-afternoon into the early evening. Our predicted storms failed to materialize until an early morning (Sunday) shower (no thunder) fell around 0400 (0.38″). Storms were around, and really hit some areas hard, but missed me Saturday late afternoon/evening. The rest of Sunday was cloudy and cool as predicted, but with no more rain falling. Temps topped off in the upper 60s at midnight, but fell into the low 60s most of the day and remained quite stable. Monday should be cloudy, warmer with highs in the mid 80s and lows in the mid 60s and only a 20 POP for rain, but storms could fire up late in the day. Tuesday should be partly cloudy and hot, with highs in the lower 90s and lows in the mid 60s, and once again only a 20 POP for scattered PM thunderstorms. Wednesday through Friday we should be cooler with highs around 70° and lows in the low 60s, with an 80-90% chance for thunderstorms each day. We continue to be in a persistent battle zone (along a stationary frontal boundary) fluctuating from mild to very warm temps and numerous threats of thunderstorms during most of the coming week.

On the Channel 4 radar at 1010 is basically clear over the 4 state region currently, save for some small, scattered showers over WV. The closest action appears to be along the Ohio/Michigan border and west into Chicago and northern Illinois at this time.

As of 1010, 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, foggy, slightly drizzly at times – looks like another cloudy day……

Station Relative Location Temp  RH   DP      BP       Wind High/Low temp
VP2              Ground          62.5° 97% 62° 30.05″R   NA    69.4°/59.6° (Sunday)
                                                                                         88.3°/62.3° (Saturday)
The total precipitation in the cocorahs gauge was 0.38″ through midnight Sunday. All fell between midnight Saturday to midnight Sunday. The VP2 tipping bucket rain gauge under my balcony recorded 0.00″ through midnight Friday

Saturday’s precipitation was 0.00″
Sunday’s precipitation was 0.38″
May precipitation is now 0.51″
Year-to-date precipitation total is 12.25″

WX Bug Lakewood 4500 ft, 62° 100% 62° 30.07″S WNW 4 G N 21
                              140° from station                         69°/58° (Sunday)
                                                                                  90°/61° (Saturday)
The Lakewood rain gauge reported 0.19″ of precipitation on Sunday, nothing on Saturday. May is now showing 1.22″ for the month and the 2018 year-to-date (YTD) amount is 16.02″. 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 Saturday night the temperature from the VP2 was 69.4° RH 77% BP 30.04″R DP 61.9°
At 2400 obs Sunday night the temperature from the VP2 was 59.8° RH 97% BP 30.05″R DP 58.9°
Cloudy, cool, damp at 2400 Sunday

Good morning from the cloudy, fog-lifting, damp home of the walrus on this Monday morning.