Posts tagged with National Weather Service

National Weather Service issued burn warning for Johnson County

According to the NWS, above normal temperatures are going to combine with falling dew points to create a low-humidity atmosphere for most of northeastern Kansas. This will combine with high winds for a high risk of wildfire. Winds are expected to be between 20-30 miles per hour by mid-afternoon, with some stronger gusts possible. The NWS recommends that all burn plans be postponed until weather conditions change.

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NWS issues flash flood watch

The National Weather Service has issued a flash flood watch for Johnson County in effect until late Tuesday night. Recent heavy rains have made the soil saturated to the point where additional rainfalls expected this afternoon may cause flooding. Storms this afternoon are expected to produce an additional one to two inches of rainfall.

Smaller streams and creeks are particularly vulnerable to flash flooding. The NWS asks drivers to remember that even a couple of inches of water on a roadway are enough to float away a vehicle.

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Flash Flood watch issued for Johnson County

The National Weather Service has issued a flash flood watch for Johnson County in effect until Thursday morning. Storms capable of producing heavy amounts of rainfall are expected throughout the afternoon. Small creeks and streams are particularly likely to overflow their banks and cause flash flooding. The NWS warns that even a couple of inches on a roadway can be dangerous and reminds drivers not to attempt to cross a flooded roadway.

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Johnson County under flash flood watch

The National Weather Service has placed Johnson County under a flash flood watch beginning this afternoon at 3 and lasting until Saturday morning. Thunderstorms capable of producing 1-3 inches of rain are expected for the area this afternoon, but the real concern comes from the excessive rates of rainfall expected from these storms. High rate rainfalls can lead to flooding of larger creeks and streams.

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Metro area under orange Ozone Alert

As if scorching temperatures and an excessive heat warning weren't enough, the metro area is under a pollution alert today. The Mid-America Regional Council Air Quality Program has issued an orange Ozone Alert for today, indicating that an unhealthy level of ozone pollution, also known as smog, is expected across the Kansas City region.

The Ozone Alert comes on top of an excessive heat warning issued by the National Weather Service that will continue in effect until 9 p.m. Friday. The forecast high today in the area is 103 degrees; Friday's high is expected to reach 102.

MARC reports more than half of all emissions that lead to ozone pollution are caused by residents’ everyday activities, including yard care. Officials with MARC indicate four simple actions can help reduce pollution from yard care:

  • Postpone using gas-powered lawn equipment: using a gas-powered lawn mower for one hour creates the same amount of pollution as driving a car about 100 miles. If you are able, postpone using gas-powered equipment until the next green SkyCast is issued. Consider using manual or electric equipment when possible. If you need to use gas equipment, do so after 7 p.m. to allow emissions to dissipate overnight.
  • Keep lawn and garden equipment maintained: the better maintained your lawn and garden equipment is, the less time it will take you to complete a job and the better your yard will look. Make sure that blades are sharpened, spark plugs and air filters are clean, and that oil is changed regularly.
  • Use a no-spill gas can: fumes that evaporate when gasoline is spilled contribute to poor air quality. Use a no-spill gas can to avoid spills, and close the lid tightly before you put it away.
  • Go native: native plants need less water, maintenance, fertilizer and pest protection than grass. Consider using native plants in at least some parts of your yard to save money and decrease the time you spend on upkeep.
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Temperatures could hit 100 for fourth day in a row

Temperatures could hit 100 degrees for the fourth straight day Wednesday, bringing little relief from this week's brutal heat wave. On Tuesday, the National Weather Service extended the excessive heat warning until 8 p.m. Friday, and temperatures are expected to be near 100 through Friday afternoon. The heat index could reach as high as 115 degrees every day for the rest of the work week.

Brief showers that moved through the area late Tuesday night could mean temperatures stay just below 100, according to 6News Chief Meteorologist Matt Elwell.

But because the rain was gone before sunrise, it would not affect temperatures much — if at all. Elwell said it's "very possible we'll hit triple digits for the fourth day in a row."

Elwell predicted a high of 99 degrees Wednesday. Tuesday's high was 102.

A cold front will likely bring relief this weekend, along with an increased chance for rain. Daytime highs will hover around 90 on Saturday and Sunday.

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Excessive heat warning extended for Johnson County

The National Weather Service issued an excessive heat warning Saturday for Johnson County starting 1 p.m. Sunday and ending 9 p.m. Thursday. An excessive heat warning is issued when there is a heat index of at least 105 degrees for more than three hours per day for two consecutive days, or a heat index of more than 115 degrees for any period of time. A heat advisory is issued when the heat index is at least 105 degrees but less than 115 degrees for less than three hours per day, or when nighttime lows are above 80 degrees for two consecutive days.

Expect the heat wave to cause hot temperatures throughout the week until next weekend. All neighboring counties are included in the warning.

Prolonged exposure to heat and humidity of this magnitude can cause dehydration, heat exhaustion and heat stroke. If you plan to be outside:

  • Avoid strenuous activity
  • Drink plenty of water
  • Wear lightweight, light-colored and loose-fitting clothing
  • Wear sunscreen to avoid sunburn

Children, the elderly and those who are chronically ill are at the most risk in extreme heat. The National Weather Service recommends that friends and family members check on those at risk regularly. Temperatures inside cars can also become extreme within a matter of minutes.

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Heat advisory in effect until Tuesday night

The National Weather Service has issued a heat advisory for Johnson County, in effect until 9 p.m. Tuesday. High temperatures and oppressive humidity are expected to combine to reach heat indexes between 105-110 degrees. The NWS advises individuals to remain indoors when possible, the avoid prolonged time in direct sunlight and to stay well-hydrated.

Children, the elderly and pets should be watched especially closely in extreme temperatures.

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New excessive heat warning in effect for Thursday and Friday

The National Weather Service has issued an excessive heat warning for Johnson County in effect until Friday night at 8 p.m. A humid airmass is expected to move into northeast Kansas, leading to temperatures in the mid- to upper-90s. The heat index is expected to get higher than 105 degrees during the afternoons.

Impacts from prolonged exposure to the heat include dehydration, heat exhaustion and heat stroke. Avoid strenuous physical activity, drink plenty of non-alcoholic fluids and try to stay in air conditioned buildings.

Children, the elderly and pets should be monitored especially closely as they are more susceptible to heat-related illness.

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Severe thunderstorm watch in effect

The National Weather Service has issued a severe thunderstorm watch for Johnson County until 11 p.m. tonight. Along with the storm warning, a flash flood watch has been issued until Wednesday morning. The storms are capable of producing high amounts of rainfall, which could flood area streams and creeks.

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