Today, we address the elevated risk profile resulting from a slow-moving western storm that encompasses the desert Southwest and the Southern Plains. Flood watches and warnings have been issued across parts of Arizona, southeast California, and southern Nevada as persistent rainfall continues to impact these regions. Additionally, southern Utah is experiencing mountain snow, while parts of North Texas through Oklahoma are under a marginal risk for severe storms, which may include damaging winds and hail. We also note that Hawaii's Big Island summits remain under a winter weather advisory due to anticipated wintry conditions. As we navigate these varied weather phenomena, we emphasize the importance of remaining situationally aware and prepared for potential hazards.
Takeaways:
A slow-moving western storm significantly elevates the risk profile across multiple states today.
Flood watches are currently in effect across parts of Arizona, California, and Nevada due to persistent rain.
Southern Utah is under a winter weather advisory with ongoing mountain snow expected to impact travel.
Texas has activated emergency resources in anticipation of heavy rain and flooding threats over the coming days.
The Storm Prediction Center has designated a marginal risk for severe weather from North Texas to southern Missouri.
Hawaii's Big Island summits continue to face winter weather advisories due to potential snowfall and icy conditions.
Flood watches and recent flood warnings span parts of Arizona, southeast California and southern Nevada as the system continues to wring out additional rain.
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Mountain snow continues in southern Utah under a winter weather advisory.
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Farther east, the Storm Prediction center outlines a marginal risk for a few strong storms from North Texas through Oklahoma into southern Missouri and Kansas later today and tonight.
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In the Pacific, Hawaii's Big island summits remain under a winter weather advisory for wintry conditions.
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Tropical outlooks are quiet.
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There are no active systems in the Atlantic and earthquake monitoring shows routine.
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No non notable US Seismic activity over the past day.
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Let's run through the states.
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Arizona Widespread flood watches remain in effect today across portions of central and southwest Arizona, including parts of the Phoenix West Valley and the Cave Creek New river to Rio Verde Salt river corridors after saturated soils and additional rain raise the risk of creek and wash flooding.
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The Flagstaff office continues a flood watch for Yavapai county through this afternoon.
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California Southern California faces marine and coastal hazards and lingering inland flood issues tied to the same western system.
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Los Angeles Oxnard highlights a high surf advisory and beach hazards for the coast, while San Diego carries a flood watch for portions of inland valleys and mountains.
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Inyo county was under a flood warning earlier this morning from the Las Vegas office as rainfall impacted the Tecopa Shoshone area.
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Nevada for southern Nevada, the overnight flood watch for the Las Vegas Valley and surrounding Clark county expired early this morning as the heaviest rain exits.
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A winter storm warning for the Spring Mountains also expired around 4am Utah Southern Utah's higher terrain stays under a winter weather advisory until 5pm MST with additional snow of 6 to 9 inches above 8,000ft and travel impacts over mountain routes including Brian Head and Boulder Mountain.
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Texas Ahead of increasing rain and isolated severe potential, governor Abbott directed the Texas Division of Emergency Management to activate state emergency response resources for heavy rain and flooding threats beginning Wednesday into Thursday.
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The the Storm Prediction center places parts of North Texas in a marginal risk for severe storms today with damaging wind and hail.
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Possible Oklahoma moisture and lift increase later today and tonight bringing periods of rain and a few strong storms mainly along and southeast of I44.
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The SPC flags a marginal risk for isolated severe weather.
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NWS Norman messaging emphasizes heavy rain potential Wednesday, Thursday with localized flooding where the heaviest bands set up.
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Kansas Southeast Kansas is on the northern edge of the Southern Plains setup with dense morning fog in spots and increasing shower storm chances.
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Late A few storms could be strong if instability overlaps with forcing this evening and overnight.
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Missouri Southwest and south central Missouri sit on the fringe of today's marginal risk with scattered showers and a couple of stronger storms possible later today into tonight.
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Localized heavy downpours could cause brief ponding on roads.
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Wyoming Wind prone corridors of southeast Wyoming are under a high wind warning today impacting I80 and I25 wind gaps.
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Gusts can impact high profile vehicles and cause blow off blow over risks.
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Hawaii on the Big Island a winter weather advisory remains in effect for the summits through this evening with freezing temperatures, snow and ice possible.
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Trade winds continue breezy windy across parts of the state with marine small craft advisories.
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All other states have no significant updates in the last 24 hours.
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That's the EMN Morning Brief for Wednesday November 19th.
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Thank you for listening as we help you stay situationally aware, stay safe.
