A multi-day severe weather outbreak is expected in the Mississippi Valley into the Lower Ohio Valley this afternoon into Saturday and through the Central Gulf states on Saturday. Significant tornadoes, widespread damaging winds, and large hail are likely. Strong winds, low relative humidity, and dry fuels will bring extremely critical fire weather conditions to the Southern Plains today. Read More >
AFDOKX Area Forecast Discussion National Weather Service New York NY 736 AM EDT Fri Mar 14 2025 .SYNOPSIS... High pressure builds into the area today and weaken tonight into Saturday morning. A warm front lifts through late Saturday ahead of a complex frontal system that impacts the area Sunday through early Monday. High pressure will return later Monday into Tuesday, before moving offshore on Wednesday. Another frontal system will approach on Thursday. && .NEAR TERM /THROUGH TONIGHT/... Forecast remains on track with only minor adjustments to account for the latest observations and trends of temperature and dew point through the morning. A ridge of high pressure over the area this morning will more firmly establish itself over the area today as a weak wave of low pressure moves to the east of the area. Extensive low stratus over the area this morning should slowly dissipate through the day as high pressure builds overhead. Highs today will be in the low 50s along the coast to middle to upper 50s for the interior and NYC metro. The high pressure weakens tonight as a light S/SE flow develops, advecting low level moisture back into the area. This will result in areas of drizzle and fog late tonight and into Saturday morning. Lows tonight will be in the middle 30s to low 40s. && .SHORT TERM /SATURDAY THROUGH MONDAY/... By Saturday, an approaching complex frontal system will begin to impact the area. In addition to the extensive cloud cover and morning drizzle and fog, a warm front will approach from the south and move through late Saturday. This will continue to increase low level moisture in the area, possibly such that a few light rain showers may develop with the warm frontal passage. Highs Saturday will be in the 50s. As the complex frontal system approaches from the west Saturday night, southerly flow increases substantially overnight Saturday and into Sunday morning. The area will be entrenched in a breezy southerly flow during the day on Sunday, perhaps with surface gusts upwards of 35-45 mph, though an inversion will prevent the strongest winds from the LLJ from reaching the surface. Despite the proximity to the approaching system, it's possible that much of the day Sunday will be dry as the area will remain in the warm sector of the complex frontal system. High temperatures Sunday will be in the 60s for much of the area, though coastal areas may remain in the 50s with an onshore flow off a cool ocean keep temperatures a bit more moderated. The cold front approaches the area from the west late Sunday afternoon and into the evening. Given the ample moisture ahead of the front, rain is expected to be at least moderate to possibly locally heavy in intensity. Some elevated instability may result in isolated thunder as the frontal system slowly moves through the area Sunday night. The front continues to progress through the area into Monday morning with some residual showers remaining possible for the area on Monday, though the reduction in the pressure gradient should allow the winds to relax a bit. Showers should come to an end from west to east on Monday before pushing east by Monday afternoon. Total rainfall amounts are expected to be generally 1-1.5 inches with the higher totals expected along the coast and to the east of the area. Locally upwards of 2 inches of rainfall is possible. && .LONG TERM /MONDAY NIGHT THROUGH THURSDAY/... Ridging aloft with high pressure at the surface will keep the region dry Monday night through Wednesday night. A cold front then approaches on Thursday with good agreement among the global models that the front passes through sometime during Thursday night. Therefore, better chances of showers at night versus the day with PoPs capped at 50 percent being that this is a week away. Temperatures through the long term will be above normal with highs mainly mid and upper 50s for much of Long Island and Coastal CT, and 60s elsewhere. && .AVIATION /12Z FRIDAY THROUGH TUESDAY/... High pressure over the area slowly shifts east through tonight. MVFR cigs and light NE winds through the morning push, then VFR developing from approx 14-16z with winds shifting SE soon after at 5-10kt. MVFR cigs return tonight after 01-03z with light winds. ...NY Metro (KEWR/KLGA/KJFK/KTEB) TAF Uncertainty... Timing for improvement to VFR this morning and return to MVFR this evening may be off by 1-2 hours. Chance that IFR vsbys do not develop late tonight/Saturday morning, but IFR cigs are also possible for the same time period. .OUTLOOK FOR 12Z SATURDAY THROUGH TUESDAY... Saturday: MVFR cigs with a chance of IFR vsbys and cigs during the morning push, then VFR/MVFR with a chance of showers during the afternoon. Saturday night: MVFR with a chance of showers. S winds G20-30kt. Sunday: MVFR with showers and LLWS mainly in the afternoon. Chance of showers. S winds G25-35kt. Sunday night: MVFR/IFR in rain/showers, a thunderstorm possible. LLWS and S winds G30-40kt. Winds becoming SW and diminishing late. Monday: Sub VFR possible in AM, otherwise becoming VFR. Showers ending west to east during the afternoon. W winds AM, shifting NW PM with G20kt possible through the day. Tuesday: VFR. Detailed information, including hourly TAF wind component forecasts, can be found at: https:/www.weather.gov/zny/n90 && .MARINE... SCA on the ocean will continue through the afternoon today with waves around 5 feet. Sub-SCA is then expected on all waters through Saturday. By Saturday night, an increase in southerly winds will allow wave heights to build above 5 feet on the ocean. By Sunday morning, widespread gales are possible on all waters, but most likely for the ocean with gusts 35-40 kt. The cold front moves through the area Sunday night which allows the gusts to reduce to SCA and eventually sub-SCA by Monday morning, but elevated wave heights on the ocean will allow SCA conditions to continue there through at least Tuesday. && .HYDROLOGY... A widespread 1-1.5 inch rainfall event is likely from late Sunday into the first half of Monday, with a 10-20 percent chance (reasonable worst case scenario) of up to 2 inches. At this time only localized minor nuisance/urban type flooding is anticipated. && .OKX WATCHES/WARNINGS/ADVISORIES... CT...None. NY...None. NJ...None. MARINE...Small Craft Advisory until 4 PM EDT this afternoon for ANZ350- 353-355. && $$ SYNOPSIS...JC/MW NEAR TERM...MW SHORT TERM...MW LONG TERM...JC AVIATION...JC MARINE...JC/MW HYDROLOGY...JC/MW