Wisconsin Weather Update for July 15, 2013.

By: HaleStorm , 12:32 PM GMT on July 15, 2013

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Warm and humid. Isolated thunderstorms later today.
High pressure off to our east should continue to keep us mostly dry with a sun/cloud mix today. Southerly winds behind this area of high pressure will bring northward even more heat and humidity, and that always has the chance to initiate some atmospheric convection and thunderstorm development, but most of us should remain dry today. Temps will continue to get close to 90 degrees for the next few days, and with dew points in the upper 60s to lower 70s expected, it will feel rather uncomfortable outside. Humidity relief is not expected until this weekend.

Weather Map of the Day
This 4-panel relative humidity/lifting potential map shows that the early sunshine we’re getting now (purple, not-hashed, upper-left panel) is going to get clouded over later today (blue colors, upper-right panel), and the hashed areas indicate areas where thunderstorm development is possible. Generally your best chance of thunderstorm development occurs both where the air is moist (blues) and where there is convective instability (hashed areas). The deeper the blues and hashed areas, the more intense the clouds/storms could be.
http://weather.unisys.com/nam/nam.php?plot=rel&in v=0&t=4p

Wisconsin Forecast:

Today’s Forecast Grade: B
Short-Term Forecast Confidence: Medium

Today’s Conditions: Morning sunshine with afternoon clouds. Isolated thunderstorms could develop later this afternoon and evening, but are not likely. Chance of rain 25%.
Today’s High Temps: Near 87. Humid dew points in the upper 60s to near 70.
Today’s Winds: Light from the southeast.

Raw Model Data: (combined numerical output range from three different NOAA weather models)
Appleton: Highs 85-88.
Madison: Highs 85-88.
Milwaukee: Highs 80-84.
http://www.nws.noaa.gov/cgi-bin/mos/getall.pl?sta =KATW&sta=KMSN&sta=KMKE

Tonight: Partly cloudy and muggy overnight. Lows just above 70.

Tomorrow’s Conditions: Partly sunny. Isolated late-afternoon thunderstorms again possible, but not likely. Chance of rain 25%.
Tomorrow’s Temps: Highs in the upper 80s to near 90.
Tomorrow’s Winds: Just a little breezy from the south-southwest.

Extended Outlook:
Wednesday: Partly sunny, hot and humid. 88-93.
Thursday: Scattered thunderstorms, very warm and humid. Highs 86-91.
Friday: More showers and thunderstorms, very warm and humid. Highs 86-91.
Saturday: Becoming partly sunny, cooler and less humid. Highs 76-83.
Sunday: Partly cloudy and pleasant. Highs 74-81.

Weather in the News:

Forecasting Severe Weather can be tricky business
http://www.crh.noaa.gov/news/display_cmsstory.php ?wfo=mkx&storyid=96002&source=0

Today Outside of Wisconsin:

Minneapolis/St. Paul, Minnesota:
Conditions: Partly cloudy.
High Temperatures: Upper 80s.
http://www.wunderground.com/US/MN/Minneapolis.htm l
http://www.weather.com/outlook/travel/businesstra veler/local/USMN0503

Anna, Illinois:
Conditions: Scattered thunderstorms.
High Temperatures: Upper 80s.
http://www.weather.com/outlook/travel/businesstra veler/local/USIL0033

League City, Texas:
Conditions: Thunderstorms likely.
High Temperatures: Upper 80s.
http://www.wunderground.com/US/TX/League_City.htm l
http://www.weather.com/outlook/travel/businesstra veler/local/USTX0745

Hilton Head Island, South Carolina:
Conditions: Scattered thunderstorms.
High Temperatures: Mid- 80s.
http://www.wunderground.com/US/SC/Hilton_Head_Isl and.html
http://www.weather.com/outlook/travel/businesstra veler/local/USSC0155

Charlotte, North Carolina:
Conditions: Becoming partly cloudy.
High Temperatures: Upper 80s.
http://www.weather.com/outlook/travel/businesstra veler/local/USNC0121

Las Vegas, Nevada:
Conditions: Sunshine.
High Temperatures: Near 102.
http://www.weather.com/outlook/travel/businesstra veler/local/USNV0040

Davenport, Florida:
Conditions: Scattered daytime thunderstorms.
High Temperatures: Upper 80s.
http://www.weather.com/outlook/travel/businesstra veler/local/USFL0104

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About HaleStorm

Atmospheric and Oceanic Sciences degree from UW-Madison: 1998. Former broadcast Meteorologist for NewsRadio 1310 WIBA in Madison. NWS Storm Spotter.

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Personal Weather Stations

N9OEQ - Darboy USA
Appleton, WI
Elevation: 735 ft
Temperature: 66.0 °F
Dew Point: 64.5 °F
Humidity: 95%
Wind: Calm
Wind Gust: 0.0 mph
Updated: 11:28 PM CDT on September 04, 2015

About Personal Weather Stations