Tag Archives: Janesville

Pleasant Summer Days

With a weak system moving through Janesville, a couple of light rain showers passed through very early Wednesday morning. Outside of that, just partly cloudy skies and warm temperatures ruled Wednesday and Thursday. NWS’s perfect Thursday forecast nudged them into the top spot.

Wednesday: Trace of precip in a rain shower. High 87, Low 64.
Thursday: High 86, Low 60.
Forecast Grade: A

Janesville, Wisconsin

I messed up again and just now published a road trip forecast from yesterday. Oops! I messed it up, so you know I didn’t just write it now! *sigh*

At 1235AM, CT, Janesville was reporting light rain and a temperature of 71. A cold front sliced across Wisconsin, but shower and thunderstorm activity was on it’s way to collapsing for the night, and only light drizzle continued in Janesville. Heavier storms were still being seen up near Oshkosh, suggesting a little bit of instability left ahead of the front.
The upper level flow is very weak and well to the north, so the frontal passage is likely to go unnoticed through Janesville overnight tonight. Instead, a ridge of surface high pressure across the country will couple with a thermal trough that will grow to encompass a broad section of the southwestern Plains as well. This will open the Gulf and moisture as well as thunderstorms across the central Plains, some which may reach Janesville, particularly Sunday morning but generally, the next two days will be sunny, or at the very least partly cloudy.
Tomorrow – Partly cloudy (early AM showers), High 85, Low 65
Thursday – Isolated showers in the morning, High 83, Low 59

TWC: Tomorrow – Isolated thunderstorms in the morning. Skies will become partly cloud High 88, Low 69
Thursday – Mostly sunny skies 85, Low 60

AW: Tomorrow – Times of sun and clouds with a shower or thunderstorm in spot High 83, Low 66
Thursday – Partly sunny and pleasant High 80, Low 57

NWS: A 10 percent chance of showers and thunderstorms before 7am. Mostly sunny High 84, Low 66
Thursday – Mostly sunny, High 86, Low 60

WB: Tomorrow – Mostly sunny High 84, Low 67
Thursday – Mostly sunny. High 85, Low 60

And a look at radar shows how weak those showers are over Janesville are. Can’t even see em!

Appropriate for clear skies

The daily temperature spread in Janesville responded directly to the cloud cover. Things were a little murky on Thursday, with leftover overcast from the previous day’s snow fall, and temperatures didn’t drop below 31 or climb above 41. The skies cleared, however, and the spread between highs and lows climbed to a difference of 20 degrees. The top forecaster in southern Wisconsin was The Weather Channel, who had a good handle on the clearing weather.
Actuals: Thursday – High 41, Low 31
Friday – High 46, Low 26

Grade: B

Janesville, Wisconsin

We’re going to get out of the southeast for once today, and head closer to the Victoria-Weather stomping grounds.

At 1045AM, CT, Janesville was reporting drizzle and a temperature of 35 degrees. An occluded system passing through the Ohio Valley extended an inverted trough into the Great Lakes, which was sweeping very low clouds and fog through southern Wisconsin and northern Illinois. Bands of wet snow were seen off to the north where temperatures were slightly cooler, however temperatures were warm enough for rain from Kenosha to Janesville.
The low will persist as a shortwave with weak flow aloft, but because of those two factors, it’s intensity is diminishing. The sharpness of the trough is indicative of the speed at which the system will move, however with the weakening of the system, dry air will lag behind the system, leaving most of Thursday and Friday cloudy. Yet another trough will develop over the Dakotas and generate a stronger southerly flow, bringing some warmer temperatures to Janesville Friday afternoon.
Tomorrow – Chances for flurries early. Overcast. High 35, Low 28
Friday – Clearing and warmer, High 43, Low 24

TWC: Tomorrow – Sunshine along with some cloudy intervals (early AM snow) High 40, Low 30
Friday – Times of sun and clouds High 47, Low 27

AW: Tomorrow – More clouds than sun; breezy with a couple of snow showers High 38, Low 25
Friday – Sun giving way to clouds High 44, Low 22

NWS: Tomorrow – Cloudy, then gradually becoming mostly sunny (early AM snow) High 38, Low 29
Friday – Sunny High 47, Low 23

WB: Tomorrow – Partly sunny (early AM snow) High 39, Low 27
Friday – Sunny. High 45, Low 22

Some wildly varying opinions on what this system will do as it departs. I should note that a few days ago, it looked like Janesville would be getting a foot of snow today. How things change.

Narrowly averting the snow

Well, not exactly averting the snow, but Janesville didn’t get assailed by the heavier snow and ice they will see later today off to their south and east. 3 inches were measured for a storm total in Janesville, though some of that fell this morning and some of it yesterday. All we know is that they reported snow in Janesville for most of the afternoon yesterday. The Weather Channel had the top forecast after correctly predicting a brief spike in temperature during the day on Sunday, if 29 can be a spike.
Actuals: Sunday – High 29, Low 17
Monday – High 24, Low 19

Grade A

Janesville, Wisconsin

Off to southern Wisconsin, away from the word “Nor’Easter”.

At 1145AM, CT, Janesville was reporting overcast skies with a temperature of 32 degrees. An area of low pressure over Ohio extended an inverted trough into the Upper Midwest that was acting a secondary cold front, kicking up clouds over the region and some flurries to the north and northwest. It was also holding up some slightly cooler air behind the system.
The flow was following the jet overhead, which was primarily laminar and incapable of generating much vorticity, so it looks like any precipitation for Janesville will be in the form seen to their north; stratiform snow. A sharp upper trough moving into the west coast will swing towards the Rockies while amplifying instability over he northern Plains. Southerly flow will interact with whatever lingering surface boundary is seen in the Dakotas and Minnesota Monday before nosing into Wisconsin by Tuesday evening. This is going to be a massive, awful system for most of the country, and the snow that will begin to fall in Janesville Monday evening will only be the beginning of what will likely be a two day event in southern Wisconsin.
Tomorrow – Cloudy with a few flurries, High 24, Low 15
Monday – Snow increasing late, High 25, Low 14

TWC: Tomorrow – Mostly cloudy skies. High 27, low 18
Monday – Light snow. High 25, low 20

AW: Tomorrow – Variable cloudiness High 24, Low 15
Monday – Cloudy with a little snow, accumulating a coating to an inch High 24, low 13

NWS: Tomorrow – Cloudy High 25, Low 18
Monday – Snow likely. Cloudy, High 23, Low 17

WB: Tomorrow – Cloudy. High 25, Low 18
Monday – Light snow likely. Snow accumulation up to 1 inch High 23, low 16

I will say Janesville ends up with more than an inch on Monday, and it will snow there briefly tomorrow. So there. Satellite below.

No blogs for Janesville

Unfortunately, we were stymied in our third attempt to find local weather blogs as we explored the Janesville Wisconsin internet scene. We did find the Janesville Gazzette, though. It appears they get their weather from Weather Underground, which, by the way, is a great source for historical weather data. We’ll try again somewhere else in a few weeks. Bummer.