Marine Weather and Tide Forecast for Lake Havasu City, AZ

DISCUSSION
through next weekend.

Skies are gradually clearing from west to east this afternoon as the shortwave responsible for widespread high cloud cover this morning pushes into the Central Rockies. This shortwave is dragging a cold front southward through the Great Basin, and is currently roughly along a line from Ely to Beatty and tracking southward. This wind shift will reach the Las Vegas Valley by late afternoon and spread south through the Colorado River Valley overnight. On Sunday, these north winds will become focused along the Colorado River Valley and persist into Monday - so beware of locally choppy conditions and elevated lake winds if you have plans on the water. A Lake Wind Advisory is in effect for the period.

Behind the front, temperatures Sunday will "cool" a few degrees from their peaks today, but will still remain solidly in 8-12 degrees above normal territory. Then, starting Monday, the real warming trend begins as an intense high pressure ridge begins to build along the West Coast and spreads inland into the Southwest by late in the week. Off-the-chart height anomalies are expected Wednesday - Saturday, with heights peaking Thursday and Friday in the 593-596 range across the Mojave Desert. This will translate to high temperatures not seen in the modern record for March, peaking into the 90s & 100s across the lower elevations of the Mojave Desert, and well into the 80s and 90s across more moderate elevations of the Great Basin and Owens Valley. To further put the extremity of of this heat into perspective, the all-time record March high temperature in Las Vegas is 93 degrees, and every day Wednesday through Saturday is expected to be at least that warm, if not several degrees warmer.

Needless to say, increasing HeatRisk will accompany these temperatures with widespread Minor HeatRisk (Level 1 of 4) across the area early next week and widespread Moderate HeatRisk (Level 2 of 4) across the lower elevations and valleys of the Mojave Desert during the second half of the week. Heat sensitive individuals, people traveling to the Southwest from cooler climates, and those without access to adequate hydration and cooling will be the most at risk for adverse heat related impacts and should take preventative measures to minimize their chances of being negatively impacted by the heat. Some examples of preventative measures include, but are not limited to: wearing loose, light colored clothing, wearing sunscreen, and taking extra care to remain hydrated.

AVIATION
For Harry Reid...For the 00Z Forecast Package...Southwesterly winds this afternoon will veer to the northwest this evening, increasing to around 10KT, eventually shifting to the northeast overnight as a front moves through the area. Northeasterly winds (020-040 true) will increase to 10-12KT sustained by mid morning Sunday, with intermittent gusts to around 18-20KT expected during the afternoon. Gusts are expected to diminish prior to sunset as wind speeds drop to around 6-8KT, though remaining northeasterly through the end of the period. VFR conditions will continue, with FEW-SCT high clouds with bases around 25kft.

For the rest of southern Nevada, northwest Arizona and southeast California
For the 00Z Forecast Package
Gusty northwesterly winds in the northern Owens Valley this evening will see a brief lull overnight, with northerly winds gusting to around 25KT expected to return by mid morning Sunday. These northwesterly winds gradually overspread the area through tonight, with northwesterly gusts to 20-25KT expected to persist at KVGT in the northern Las Vegas Valley until late in the period. Winds will veer from the northwest to northeast elsewhere, with winds ramping up through the morning to around 10-15KT with intermittent gusts to 20-25KT expected Sunday afternoon. An exception will be across the western Mojave, including KDAG, where gusty westerly winds continue through this evening before diminishing and becoming variable overnight, shifting to the northeast Sunday afternoon.
Additionally, KIFP and KEED in the Lower Colorado River Valley will see winds around 5-10KT through late evening ahead of the northerly wind shift, which will produce terrain-enhanced gusts to 25-35KT from Sunday morning onward. VFR conditions prevail with FEW-SCT clouds with bases above 15kft through the period.

CLIMATE
Numerous climate locations have a forecast high temperature and/or forecast warm low temperature within 3 degrees of the daily record.

The table below shows the daily record maximum temperature and the year the record was last set. An asterisk (*) denotes which records are in jeopardy (within 3 degrees of the forecast).

MAX SAT, MAR 14 SUN, MAR 15 MON, MAR 16 TUE, MAR 17 Record(Yr) Record(Yr) Record(Yr) Record (Yr)

Las Vegas 89(2007)* 88(2017) 89(2007) 91(2007)* Bishop 84(2007)* 82(2007) 84(2007)* 84(2007)* Needles 96(2017)* 95(2007) 98(2007) 99(2007)* Daggett 92(2007) 93(2013) 93(2007) 92(2007)* Kingman 86(2013) 87(2007) 90(1934) 89(2007)* Desert Rock 84(2017)* 85(2013) 86(2007)* 87(2007)* Death Valley 98(2007)* 99(2007) 99(2007)* 102(2007)*

The table below shows the daily record warm minimum temperature and the year the record was last set. An asterisk (*) denotes which records are in jeopardy (within 3 degrees of the forecast).

WARM MIN SAT, MAR 14 SUN, MAR 15 MON, MAR 16 TUE, MAR 17 Record(Yr) Record(Yr) Record(Yr) Record (Yr)

Las Vegas 64(2003) 61(2017)* 64(2011) 64(1994)* Bishop 46(2020) 46(2004) 42(1976)* 46(2015)* Needles 65(1926) 63(1972) 69(2007) 64(1901)* Daggett 57(2007)* 60(2013) 58(2013)* 60(1974)* Kingman 53(1926)* 53(1947)* 55(2013) 50(1947)* Desert Rock 57(2003)* 54(2007)* 61(1997) 58(1993)* Death Valley 66(2023)* 71(2003) 72(1972) 72(2013)

SPOTTER INFORMATION STATEMENT
Spotters are encouraged to report any significant weather or impacts according to standard operating procedures.