Well as promised I bring you the report for the first 3 days of May. Temps have been going up and down depending on the position of the warm front swaying to and fro here in the mid-Atlantic states. And with the frontal boundary close by, showers and thunderstorms have become more numerous the past two days. 

There was a total of 0.75″ of precipitation falling on Thursday May 2 and Friday May 3. No rain fell on Wednesday, May 1. April ended up with a total of 2.36″ of precipitation. May now has 0.75″ of rainfall so far. The year-to-date total is now 14.80″.

Wednesday, May 1 was mostly cloudy and dry with cooler than normal temps as the warm front retreated well to our south.  The high temps were in the mid 60s and lows in the mid 50s. 

The maximum temperature was 63.9° at 0001.

The minimum temperature was 56.6° at 0819.

The dew point temperatures ranged from a high of 60° @ 0000 down to a low of 52° @ 0410.

The relative humidity values ranged from a low of 83% @ 0410 up to a high of 92% @ 2328.

The barometric pressure ranged from a high of 30.60″ @ 0731 down to a low of 30.17″ @ 2334.

Thursday, May 2 heated up as the warm front moved north of the area, and temperatures really skyrocketed from the mild upper mid 50s mins in the early AM into the mid 80s by mid-afternoon. The heat rise halted very soon thereafter as a thunderstorm moved in complete with severe warnings and brief heavy windswept rain (0.37″ total for the day) from 1530-1630. There was some light fog formation in the late evening from the left-over moisture with dew point and air temps approaching the same values.   

The maximum temperature was 84.9° at 1445.

The minimum temperature was 57.6° at 0547.

The dew point temperatures ranged from a low of 56° @ 0521 up to a high of 69° @ 1749.

The relative humidity values ranged from a high of 96% @ 0624 down to a low of 52% @ 1438.

The barometric pressure ranged from a high of 30.17″ @ 0000 down to a low of 30.05″ @ 1507.

Friday, May 3 featured compressed temps (cooler max in the mid 70s, warmer min in the lower mid 60s), mostly cloudy, damp skies, and an evening thunderstorm around 2000 with lighter rain falling the rest of the evening (0.38″ total). I only heard one big bang of thunder, but a few flashes of more distant lightning.  Severe storm warnings were posted once again during the evening for a short time. Interestingly enough the barometric pressure rose some during the thunderstorm. 

The maximum temperature was 74.8° at 1622.

The minimum temperature was 63.5° at 0604.

The dew point temperatures ranged from a high of 67° @ 1341 down to a low of 62° @ 2355.

The relative humidity values ranged from a high of 95% @ 0052 down to a low of 75% @ 1543.

The barometric pressure ranged from a high of 30.09″ @ 0030 down to a low of 29.89″ @ 2002.

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. 

Saturday should be mostly cloudy, damp, with showers and thundershowers developing in the afternoon and evening, with highs in the upper 70s and lows in the lower 60s.

On Sunday conditions should be cloudy and cooler with highs in the mid 60s and lows in the lower mid 50s with rain falling during most of the day. 

Monday should be partly cloudy with highs in the mid 70s and lows in the mid 50s.   Tuesday should be warmer with high temps in the low 80s, lows in the upper 50s, under partly cloudy skies. 

Cloudy, rainy skies and cooler temperatures are expected on Wednesday and Thursday, with highs in the upper 60s and lows in the mid 50s on Wednesday and upper 50s on Thursday. 

Midnight Friday night found the temperature to be 63.8°, relative humidity 93%, pressure falling at 29.92″ and the dew point at 61.7° under cloudy, damp skies.

Currently at 0612 the temperature is 61.9° under cloudy skies, relative humidity at 95%, barometric pressure falling at 29.87″, and the dew point at 61°. Today’s feature image was taken late on Thursday afternoon about an hour before sunset at my apartment complex on my way over to my weekly trivia game. 

Good morning from the walrus on this damp Saturday. A flash flood watch has been posted for our area today (Saturday) Have a great day!