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Heat Wave Ends with a Bang!

Good Sunday bloggers,

KANSAS CITY SECTION:

I hope you did not lose power last night and if you did that it has come back on or will come back on ASAP.  We had a weak front along I-70 as a disturbance drifted east out of western Kansas,  These features interacted with about as much atmospheric juice you can have on the planet!  Temperatures were near 100° (BTW: New Century airport and Pleasant Hill reached 100°) with dew points around 80°.  This made the heat index values soar to 115°.  Note, if the dew points were in the low 70s we would have easily reached 100°-105° across the area.

Thunderstorms exploded south of the river 8 PM to 9 PM.  Here is the radar from 10 PM Saturday.  The lightning was nuts and the thunderstorms were producing 1-3″ of rain per hour along with 50-80 mph winds.

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Here are the severe reports from Saturday night.

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Rainfall was quite varied across the city and region as well and here is the radar estimated rainfall totals.  Remember, these are radar estimates and your rain gauge may read different.  You can see the heaviest rain was south of I-70 in KC and along I-70 to the east.

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When we look closer in at the rainfall totals in KC, you can see 2-5″ of rain from Gardner, KS to Prairie Village, KS.  Most of this rain came in 1-2 hours and flash flooding was becoming an issue after 9-10 days without much rain.  Crazy!

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There have been three main thunderstorm events this July, so far.  They occurred on the 4th, 13th and 22nd.  They have also mostly targeted locations south of the river and look how varied the totals are across KC.  Amounts range from 0.60″ at KCI to 6.95″ in OP.  Remember the official KC records are kept at KCI.

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So, what is next?  First, tonight a second front will move in with perhaps an isolated T-Storm, but it will be a mainly dry frontal passage and bring in a bit more comfortable air so that we will see lows in the 60s.  Lows will drop to the 50s north of I-80.

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The next chance of thunderstorms that could create havoc will be Wednesday afternoon into Thursday as a front and disturbance come in from the northwest.  This could be an interesting set up as highs may reach 105° in central Kansas as this low, cold and warm front move southeast.  The dew points will likely be 75° to 80° in our area again. There will be a ton of energy available for strong to severe thunderstorms, more wind and torrential rain in some locations.

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The latest data has the bulls eye of activity in northern Missouri, but this is not set in stone.

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NATIONAL SECTION:

The next 7-10 days will see the main anticyclone in the western USA, putting locations east of the Rockies in northwest flow.  This means temperatures this period will be at to a bit below average and there will be rain chances every 2-3 days as fronts and disturbances track in from the northwest.  This will be friendly weather to much of the corn belt as we head into soybean month, August. Rainfall totals from Iowa, Missouri to Ohio will be 1″ to 4″ with locally higher totals.

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Have a great week.

Jeff Penner

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