Wednesday, April 13, 2011

Tuesday and Wednesday's Observations

Yesterday we saw cirrocumulus clouds covering about 75% of the sky. The temperature was around 62 deg F with the dew point at 32 deg F creating a relative humidity of 33%. The winds were from the west at around 9 mph. The barometer was at 1030.6 mb which is much higher than the sudden drop in the pressure that we saw on Sunday when the larger storms were in the area. Yesterday we were in a high pressure dome with an approaching cold front over the Dakotas. I predicted rain overnight however this proved to be wrong.

Today's weather looks to be a bit gloomy. The temperature is at 52.5 deg F with a wind chill of 49.1 deg F. The  dewpoint is at 38.3 deg F creating a relative humidity of 58% meaning that there is alot more moisture in the air then yesterday. The wind is from the north at around 5 mph. The barometer is at 1017.5 mb which is a bit lower than yesterday this means that the lower pressure system that was off to the west yesterday is moving through the area today. In the eastern sky this morning I see cirrocumulus clouds however in the western sky I see a blanket of gray nimbostratus clouds. These western clouds are going to be bringing rain showers to the area throughout the day and into the night. The map below from the Weather Channel confirms that the cold front is indeed stretching across the western side of Wisconsin. This is bringing the cooler temperatures and cloudy skies.

Monday, April 11, 2011

Sunday and Monday Observations

Yeserday presented quite the array of weather. It began with Thunderstorms overnight on Saturday followed by overcast stratus cloud Sunday Morning, followed by partly cloudy/ slightly sunny midday. Then the winds picked up and the clouds turned darker and looked more like cumulonimbus clouds. Severe Weatehr Sirens sounded at around 4:30pm. Then the darker clouds drifted off around 6pm. However at  around 8pm they were back and the wind was blowing at around 15 mph. The temperature dropped throughout the day starting at around 55 deg F.

Today's temperature is 60.6 deg F with a wind chill of 54.9 deg F. Teh dew point is 28.2 deg F creating a relative humidity of 29%. The wind is blowing at around 10 mph from the northwest. The barometer is at 1010.0 mb. The sky is about 10% covered with a few cirrocumulus clouds. The map below fromt he Weather Channel shows that there are no new front moving into the region therefore I predict warmer temperatures adn clear skies for tomorrow.

Saturday, April 9, 2011

Saturday Oberservations

Today the temperature is 55 deg F with a wind chill of 53.6 deg F. The dew point is at 47.7 deg F creating a relative humidity of  76%. The skies have been 100% covered by nimbostratus clouds all day. There was some light rain this afternoon but it has currently stopped. There is a wind from the east blowing at around 5 mph. The barometer is 1005.6 mb which is lower than recent days. The surface station map from Unisys shows that we are in near the center of a low pressure system. There is a cold front moving in from the west which is pushing the warm moist air upward and going to cause thunderstorms to occur. This can be seen in the Weather channel map also below.

I predict cooler temperatures with the approaching cold front and thunderstorms overnight and into the early morning.

Friday, April 8, 2011

Thursday and Friday Observations

Yesterday (Thursday) was my 22nd Birthday! Woot! The weather was awesoem so I wore a dress. The temperature was 58.5 deg F with a windchill of 54.5 deg F. The dewpoint was 25.3 deg F creating a relative humidty of 28%. The wind was fromt he Southeast at 3 mph. The sky was only 25% covered with some high cirrus clouds. The jet stream was mostly normal with zonal pattern.

Today temperature is currently 42.3 deg F with a windchill of 39.6 deg F. The dew point is 34.3 deg F creating a relative humidity of 73%. The wind is from the Northeast at 5mph. The barometer is at 1016.9 mb which has been slowly rising over the past couple of days. The skies are 40% covered with some cirrostratus clouds. The surface station map from Unisys shows that we are very close to the center of the higher pressure system due to the clockwise motion of the wind directions centered over central Minnesota.
Additonally the map below from the Weather Channel shows that there is a warm front approaching fromt eh southwest. This will help continue our warmer weather trends.

I predict temperatures in the high 50s to low 60s today and tomorrow as we continue our warming trend, with partly cloudy to clear skies.

Wednesday, April 6, 2011

Wednesday's Observation

I saw beautiful cumulus humulus clouds covering 25-50% of the sky. The wind was from the north at 3 mph. The temperature was 49.5 deg F the windchill is 48.2 deg F. The dewpoint is at 28.4 deg F creating a relative humidity of 44%. the barometer is at 1012.6 mb (which is higher than it was yesterday). The jet stream image from Intellicast shows that there is no longer a trough in the jet stream across the midwest therefore there is no longer polar air spilling into the area and thus the temperatures are beginning to get warmer.
There is a high pressure system moving in from the west.
I predict more warm weather tomorrow with some clear skies.

Tuesday, April 5, 2011

Tuesday's Observations

Today I noticed cumulus humulus clouds covering around 75% of the sky. The wind is currently form the southeast at 5 mph. The temperature at the Phillips Hall metstation reads 50.2 deg F with a windchill of 48.6 deg F. The dew point is at 25 deg F creating a low relative humidity of 37%. The barometer is at 1003.2 mb it has been slowly dropping over the past couple of days. There is currently a low pressure system moving in from the west. There is a strong squall line along the southeastern U.S.
As you can see in the ACCU weather map above the low pressure system is off to the west this morning and the remnants of the mid-latitude cyclone from last week off along the east coast.

I forecast increasingly warm temperatures and maybe a chance of rain tomorrow depending on the path of the low pressure system center.

Monday, April 4, 2011

Update Post and Monday's Observations

So I've been gone for awhile. However, here is an update on my weather experiences. Last Wednesday was clear skies. then Thursday I presented the weather briefing for class. I worked on it in the morning when the skies were 100% covered with altostratus clouds. The wind was from the southeast. Temperatures were in the low 40s. However by the time I was to present the winds were from the northeast and the sky saw a mix of cumulus humulus, cumulus mediocris, and cirrostratus clouds covering about 50% of the sky. The weather indicated the approach of a mid-latitude cyclone. I predicted rain/snow overnight.

Friday morning I woke up to wet snow mix. I had to drive through snow and radiation fog as I drove to the cities. Around 10 am the fog disappeared completely. Later that day as I drove towards Fargo, ND I saw a beautiful cumulonimbus cloud to the northeast. you could see where it leveled off at the tropopause in the atmosphere. There were also winds coming from the north to northeast. Overall the weekend remained fair weather for me in Fargo, ND with clear skies.

This morning I saw a west wind blowing at around 15 mph. The sky was 85% covered with altostratus clouds. Then later today I noticed that the clouds had changed to cumulus humulus clouds. The temperature is 36 deg F with a windchill of 31 deg F. The dewpoint is 19 deg F creating a relative humidity of 50%. The barometer is at 1006 mb. The winds are now only at 5 mph and is coming from the northwest. I predict that there is a chance of rain tomorrow due to the change in the obvious changes in the weather.