National Weather Service United States Department of Commerce

Heavy Lake Effect Snow likely for the Great Lakes; Heavy Mountain Snow with Areas of Lower Elevation Snow and Freezing Rain in the West, Breezy and Cold in the Northern Plains

Lake Effect Snow Warnings are in effect for the Great Lakes with 2 to 3 feet storm total snow possible. Arctic Air extends across much of the U.S. with breezy winds and temperatures 15-35 degrees below normal in the Northern Plains. Out west, heavy mountain snow and some low elevation snow and freezing rain forecast as a warmer weather system interacts with the Arctic airmass. Read More >

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Last Map Update: Wed, Dec. 7, 2016 at 10:23:08 am CST

National Weather Service Corpus Christi, TXNational Weather Service Corpus Christi, TXNational Weather Service Corpus Christi, TX
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The cold front has advanced across the Rio Grande Valley overnight and will leave cooler conditions in its wake today with a slight chance for showers, mainly towards the coast this morning. Temperatures expected to be below normal for the northern ranchlands in the low to mid 60s and around normal into the low to mid 70s for the lower RGV. A Gale Watch is in effect Thursday morning until Thursday evening as winds are expected to increase as polar high pressure begins to build in.
There is a moderate risk of rip currents today with wave heights expected to increase this afternoon into this evening following the passage of a weak cold front and building high pressure. Elevated rip currents are expected through the weekend, with gale conditions becoming more likely Thursday into Thursday evening. Remember to swim near a lifeguard and use a non-inflatable flotation device, such as a life jacket or boogie board.
Strong north winds rapidly increase with gale conditions developing Thursday morning into Thursday afternoon as polar high pressure builds into the region. Sustained winds of around 30 knots are anticipated with frequent gusts of 35 to 40 knots. Seas will build steadily exceeding 10 feet shortly before Noon approaching 14 feet during the afternoon. Hazardous marine conditions to persist through Thursday evening. Gale conditions may develop over the northern Laguna Thursday but are not anticipated to be as frequent at this time.
Big changes in store for the Rio Grande Valley and Deep South Texas in the wake of the cold front advancing through the region today as polar high pressure builds through the day Thursday. Expect overcast skies with light rain or drizzle, breezy conditions and much colder air with temperatures nearly steady or falling throughout Thursday and into Thursday night. The early morning low temperatures on Friday will fall into the middle 30s across the Ranchlands and the low 40s across the Lower Rio Grande Valley. Mariners expect rough conditions on all coastal and Gulf waters with windy conditions and elevated seas. A gale watch is in effect for Thursday into Thursday night for the potential of frequent gale force wind gusts.
Rain chances will increase on Thursday with strong northeasterly winds gusting up to 35 mph. Temperatures will hold nearly steady or fall during the day as polar high pressure begins to build in, allowing low temperatures Friday morning to drop into the 30s for many areas with wind chills even lower; so prepare your heavier jackets before heading to work or school on Friday. Conditions will improve towards the end of the weekend with temperatures warming back up in the 70s and low 80s prior to another cold front which will cool things back towards normal for the start of next week.
Brownsville: Yesterday's high temperature was 7 degrees above normal and the low was 6 degrees below normal. The record high temperature of 85 degrees was last set in 1998 and the record low temperature of 29 degrees was last set in 1950. No rainfall was reported at Brownsville South Padre Island International Airport. The daily rainfall record of 0.85 inches was set in 1931. Harlingen: Yesterday's high temperature was 9 degrees above normal and the low was 6 degrees below normal. The record high temperature of 92 degrees was set in 1977 and the record low temperature of 33 degrees was set in 1950. No rainfall was reported at Valley International Airport. The daily rainfall record of 0.95 inches was set in 1934. McAllen: Yesterday's high temperature was 11 degrees above normal and the low was 4 degrees below normal. The record high temperature of 91 degrees was set in 1978 and the record low temperature of 39 degrees was set in 2002. No rainfall was reported at McAllen Miller International Airport . The daily rainfall record of 0.33 inches was set in 1971.

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