Heat warnings, late-day storm potential for Calgary this weekend

AFTERNOON UPDATE: The only change of magnitude comes late in the week; this line of heat and that weak impulse have upgraded, in my eyes, from "weak showers" to "thundershower risk."

Otherwise, the heat-warned spree is still driving the bus through the weekend.

 

MORNING EDITION: Monday’s shove into the ridge of high pressure is already starting to work out well for us – we’re experiencing a change-up in the forecast today. Though we’ll still experience a few drearier moments, the temperature and dewpoint temperatures won’t spend a ton of time together. Fog patches in some areas will persist only briefly before dissipating. We’ll be in for a mainly clear day.

The warm-up continues throughout the week with nary a cloud to be seen; Tuesday and Wednesday are the leadups into a heat-warned weekend, with Thursday, Friday, and now Saturday all linking arms in heat-warned parameters. There was/is a drop expected, but most models are in agreement that the ridge of high pressure is going to be a bit longer-lasting than previously measured. This ridge is starting to press heat on our side of the boundary, but only through the Peace River Valley, at this point:

Within the core of the ridge, a few weak impulses are possible, which may generate some light showers Saturday and Sunday evening. I cannot over-emphasize the word "light", in this case.

I had a really nifty question come through on Twitter and wanted to re-address it here:

This was a gooder, so I made a weather board for it:

Which was followed here:

Your five day forecast:

Tuesday

• Evening: some cloud, low 13 C

Wednesday

• Sunny
• Daytime high: 27 C
• Evening: mainly clear, low 15 C

Thursday

• Sunny
• Daytime high: 29 C
• Evening: mainly clear, low 14 C

Friday

• Sunny, risk of pm storms
• Daytime high: 30 C
• Evening: some cloud, low 15 C

Saturday

• Sunny, risk of pm storms
• Daytime high: 29 C
• Evening: some cloud, chance of showers, low 17 C

Sunday

• Partly cloudy, risk of pm storms
• Daytime high: 30 C
• Evening: some cloud, chance of showers, low 14 C

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