Weather Updates

U.S. Weather Update 8.22.23

Posted by Jarrett on Aug 22, 2023 9:17:01 AM

Tropical Storm Harold is forecast to arrive into south Texas by midday today and expected to produce heavy rain, flash and urban flooding, tropical storm conditions, coastal flooding and a couple of tornadoes. Meanwhile, millions are being affected by the sweltering heat and oppressive conditions in the Plains, South and Mississippi, Ohio and Tennessee Valleys. Impacted Lanes: I-90, I-84, I-80, I-15, I-70, I-40, I-35, I-37, I-10, I-410

Coastal Flood Advisory remains in effect until 7 PM CDT this evening

  • Minor Coastal Flooding due to Tropical Storm Harold
  • Impacts: Nuisance flooding is expected, with water reaching or pushing into the dunes.

Coastal Flood Warning remains in effect until 7 PM CDT this evening

  • Significant coastal flooding.
  • Impacts: Numerous roads will likely be closed. Beach roads will be impassable. Low lying property including homes, businesses, and some critical infrastructure will be inundated. Some shoreline erosion will occur.

Tropical Storm Warning remains in effect until further notice

  • Wind: 15-25 mph with gusts to 40 mph 
  • Impacts: Damage to porches, awnings, carports, sheds, and unanchored mobile homes. Unsecured lightweight objects blown about. Many large tree limbs broken off. A few trees snapped or uprooted, but with greater numbers in places where trees are shallow rooted. Some fences and roadway signs blown over.  A few roads impassable from debris, particularly within urban or heavily wooded places. Hazardous driving conditions on bridges and other elevated roadways. Scattered power and communications outages.
  • Flooding Rain: Localized flooding from heavy rain.
  • Impacts: Localized rainfall flooding may prompt a few evacuations. Rivers and tributaries may quickly rise with swifter currents. Small streams, creeks, canals, and ditches may become swollen and overflow in spots. Flood waters can enter a few structures, especially in usually vulnerable spots. A few places where rapid ponding of water occurs at underpasses, low-lying spots, and poor drainage areas. Several storm drains and retention ponds become near-full and begin to overflow. Some brief road and bridge closures. 

Wind Advisory remains in effect until 7 PM CDT this evening

  • East to northeast winds 20 to 30 mph with gusts up to 40 mph expected.
  • Impacts: Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Travel could be difficult, especially for high profile vehicles. 

Flood Watch remains in effect until 9 PM CDT Wednesday evening

  • Flash flooding caused by excessive rainfall continues to be possible.
  • Impacts: Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Low-water crossings may be flooded. Water over roadways is possible and likely. 

Flood Warning remains in effect until 9 PM PDT this evening

  • Flooding caused by excessive rainfall continues.
  • Impacts: Numerous roads remain closed due to flooding. Low-water crossings are inundated with water and may not be passable. 

South Dakota
Dense Fog Advisory remains in effect until 9 AM MDT this morning

  • Visibility one quarter mile or less in dense fog.
  • Impacts: Hazardous driving conditions due to low visibility.

Additional Dense Fog Advisories include but are not limited to: North Dakota

Additional Flood Warnings include but are not limited to: California

Additional Flood Watches include but are not limited to: Washington, Oregon, Montana, Idaho, Utah and Arizona 

For more information please visit

Topics: weather

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