In the Hawaiian Islands, locally heavy showers and thunderstorms associated with an ongoing Kona Low system are bringing much-needed moisture to drought-affected areas of the island chain this week. According to the Natural Resources Conservation Service (NRCS) SNOTEL network (11/28), region-wide (2-digit HUCs) percent of median snow water equivalent (SWE) levels were as follows: Pacific Northwest 53%, Missouri 62%, California 39%, Great Basin 62%, Upper Colorado 59%, Lower Colorado 100%, Rio Grande 53%, and Arkansas-White-Red 55%. Overall, early-season snowpack conditions across the West have been below normal apart from some drainage basins (6-digit HUCs) in the Great Basin, Lower Colorado, and Rio Grande basins. The heaviest accumulations (up to 36 inches) were observed in the San Juan Mountains of southwestern Colorado. Out West, moderate to heavy snowfall accumulations were observed in the mountain ranges of central Utah and western Colorado as well as in northern portions of Arizona and New Mexico. In areas of the South, Southeast, and Mid-Atlantic, light to heavy precipitation accumulations (1 to 4 inches) were observed leading to targeted improvements in drought-affected areas on the map. In terms of precipitation, light to heavy snowfall accumulations (2 to 36 inches) were observed across areas of the central and southern Plains, Upper Midwest, and the Northeast with the heaviest accumulations falling in the Northeast. with the largest departures observed across areas of the Intermountain West, central and southern Plains, and Texas where temperatures were 6 to 10 degrees below normal. For the week, cooler-than-normal temperatures prevailed across most of the conterminous U.S. Drought Monitor (USDM) week saw some minor expansion of drought across areas of the West (Colorado, Idaho, Montana, Wyoming) and Midwest (Illinois, Indiana, Missouri), while conditions improved on the map in drought-affected areas of the South (Mississippi, Oklahoma, Tennessee, Texas), Southeast (Alabama, Carolinas, Florida, Virginia), Northeast (Delaware, New Jersey, Pennsylvania), High Plains (Kansas), and the West (Montana, New Mexico). “Some storms could produce rainfall rates in excess of 2 inches per hour” both Saturday and Sunday, said a forecaster from the National Weather Service in New Orleans.This U.S. #lawx #mswx /KZKQObmv5i- NWS New Orleans June 5, 2021 Stay Weather Aware this weekend and be prepared to take action if warnings are issued. 2 to 4 inch rainfall amounts are expected for many areas, with locally higher amounts. Flood Watches are now in effect through Sunday evening for most of southern Louisiana, including New Orleans, Baton Rouge and Lake Charles.Ī Flash Flood Watch is in effect for Saturday into Sunday evening for much of the area. Heavy precipitation will also revisit much of coastal Louisiana this weekend as recent weather model trends have shifted the axis of heaviest rainfall slightly eastward. Abbott said in the release.įlash Flood Watches hoisted for Louisiana “This year’s spring season has brought an unprecedented amount of rain and flash flooding to many of our communities, and I urge Texans throughout the eastern and southern regions of the state to remain alert to changing weather conditions and heed the guidance of their local officials,” Gov. This includes boat squads, search and rescue boat teams, helicopters with hoist capability and high-profile vehicles. Texas Governor Greg Abbott activated resources to respond to the anticipated heavy rain and flooding, according to a press release from his office on Friday. Texas resources being mobilized ahead of flood threat These record setting rainfall observations have left the soil saturated and river levels high, meaning any additional precipitation could trigger flash flooding. #TXwx #HOUwx #BCSwx #GLSwx /VTItBpMp圓- NWS Houston June 4, 2021 The stretch from May 11 to June 3 is the 2nd wettest on record with 13.97 inches total. If you're curious, Houston has measured rain 19 out of the last 23 days. We've seen quite a bit of rain the past few weeks here in Southeast Texas. Preliminary numbers also indicate Port Arthur had its wettest May on record at 15.55 inches. Nearly 14 inches of rain was measured in Houston between May 11th and June 3rd, marking the second wettest period on record for the city. Victoria, Texas, received 20.28 inches of rain during the month of May, eclipsing the previous record of 14.66 inches in 1993. Heavy rain over the next 5 days will increase the flood threat from Texas to Louisiana CNN Weather
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