Marine Weather and Tide Forecast for Spanish Springs, NV

DISCUSSION

The latest RAP analysis shows the CWA with a generally northerly upper air flow being between an upper air trough to the east and an upper air ridge to west. Current surface observations along with satellite imagery report northerly surface winds underneath mostly sunny skies with the exception of some afternoon clouds over the far eastern portions of the CWA in central NV. Models show cooler and drier air continuing to come in from the north with these breezy north-northeasterly winds today. Winds in eastern Mineral County during the late afternoon and evening hours may gust up to around 40 mph before area winds become lighter tonight. Overnight lows tonight expect to be in the lower to middle 30s range in the valleys while higher elevations may low temperatures drop into the 20s and lower 30s.

For Easter weekend, forecast guidance projects the western ridge to have moved over the CWA by Saturday morning before moving out to the east later in the day causing a westerly zonal upper air flow to move in over the CWA going through Easter Sunday. This will allow for dry conditions to continue with temperatures starting a warming trend through the weekend. Daytime highs in the valleys expect to be between the middle 60s and lower 70s on Saturday with middle to upper 70s on Sunday. Sierra mountain communities have forecast highs in the 50s to lower 60s on Saturday followed by highs on Sunday in the middle 50s to middle 60s. While winds expect to be mostly light each day, typical afternoon zephyr breezes out of the west can be expected.

For Monday, models have a trough passing by the north of the CWA causing the upper air flow to take a northwesterly direction. This will lead to a slight interruption in the warming trend with daytime highs dropping a few degrees from those seen on Sunday. But the westerly zonal flow moves back in on Tuesday which continues the warming trend. Eastern portions of the CWA around Fallon see a 20-50% NBM probability of exceeding 80 degrees on Tuesday (the warmest day in the forecast period). Forecast guidance also shows that there may be some shortwave troughs moving through northern portions of CA-NV allowing for westerly afternoon breezes to persist.

But on Wednesday and going through the rest of the week, temperatures begin a cooling trend with model ensembles forecasting a Pacific trough moving towards the CWA Daytime high temperatures may drop a few degrees lower compared to each previous day until they are slightly below April's normal temperatures on Friday. While the models show low chances for some light precipitation closer to the OR border on Wednesday and Thursday, the best chances (15-35%) for precipitation next week currently look to be in the Sierra on Friday. Current QPF totals look to be minimal at this time, but will continue to monitor the upcoming forecast runs with this future system. -078

AVIATION

VFR conditions expect to persist for all REV TAF sites today and through the weekend. North-northeasterly winds gusting 15-20 kts continue at most REV terminal through this evening with the exception of KMMH which sees winds from a north-northwesterly direction. Following calm winds overnight, dry conditions are in the forecast through the weekend with late day westerly breezes gusting up to 15-20 kt on Saturday and up to 25 kt on Sunday. -078

REV Watches/Warnings/Advisories
NV...None.
CA...None.