Chesapeake Bay north of Pooles Island MD Marine Forecast
| Rest Of The Overnight...Sw Winds 5 Kt. Waves Less Than 1 Ft. |
| Today...S Winds 5 To 10 Kt. Waves 1 Ft Or Less. A Chance Of Showers. |
| Tonight...Se Winds 10 To 15 Kt...Becoming S Late. Gusts Up To 20 Kt. Waves 1 Ft. A Chance Of Showers. |
| Sun...Sw Winds 15 To 20 Kt...Becoming W 10 To 15 Kt In The Afternoon. Gusts Up To 25 Kt. Waves 2 Ft. Showers. |
| Sun Night...Nw Winds 10 To 15 Kt. Waves 1 Ft. |
| Mon...W Winds 5 To 10 Kt With Gusts To 20 Kt. Waves 1 Ft. |
| Mon Night...W Winds 5 To 10 Kt. Waves 1 Ft. |
| Tue...Nw Winds 10 To 15 Kt...Becoming N 5 To 10 Kt After Midnight. Waves 1 To 2 Ft. |
| Wed...Se Winds 5 To 10 Kt...Diminishing To Around 5 Kt After Midnight. Waves 1 Ft Or Less. |
| Area Forecast Discussion ...UPDATED National Weather Service Baltimore MD/Washington DC 339am EDT Sat April 4 2026 .WHAT HAS CHANGED... A Small Craft Advisory has been issued for late this afternoon through Sunday morning. .KEY MESSAGES... 1) Near record temperatures are expected today. 2) A strong cold front will move through on Sunday, bringing rainfall and perhaps a chance for a thunderstorm. Much cooler air moves in behind the front on Monday. 3) Cooler temperatures expected next week along with surface high pressure building over the Mid-Atlantic by midweek. KEY MESSAGE 1...Near record temperatures are expected today. Upper troughing will build over the Upper Midwest, while an associated area of low pressure tracks into the Great Lakes. Southerly flow out ahead of this area of low pressure will advect a very warm airmass into the region. With ample sunshine expected, temperatures will soar into the mid to potentially even upper 80s at lower elevations. Mountains locations will make it well into the 70s. These temperatures will challenge or potentially even break record highs for the date. See the climate section below for more details. Most locations should remain dry today with weak capping in place aloft. However, guidance hints that a few showers and potentially even a thunderstorm or two may develop later this afternoon into this evening across the West Virginia Panhandle, Northern Shenandoah Valley, or Northern Maryland. KEY MESSAGE 2...A strong cold front will move through on Sunday, bringing rainfall and perhaps a chance for a thunderstorm. Much cooler air moves in behind the front on Monday. The aforementioned system's cold front will approach from the northwest later tonight, then move through the area from northwest to southeast tomorrow morning into tomorrow afternoon. A couple hour long period of steady rain will accompany the frontal passage. This rain may reach the Alleghenies just prior to daybreak, and should clear Southern Maryland by late afternoon. In total, most locations are expected to receive between a quarter and a half of an inch of rain, which should be beneficial given the ongoing drought conditions. The frontal passage will be unfavorably timed for much instability to develop out ahead of it, but some weak instability may build along and southeast of I-95. Some of the 00z CAMs hint that a few thunderstorms may try to form immediately along the front as it moves through locations along and southeast of I-95 early tomorrow afternoon. With a strong wind field in place aloft, any storms that do form could conditionally pose a threat for some damaging wind gusts. Winds will shift to out of the northwest behind the front, and skies will gradually clear out from northwest to southeast late tomorrow afternoon into tomorrow evening. Much cooler air will filter into the region behind the front Sunday night, with temperatures dropping back into the 30s and lower 40s. Mostly sunny skies are forecast for Monday, along with a westerly breeze and high temperatures ranging from the upper 40s in the mountains to the mid 60s across Central Virginia. Most locations are expected to see highs in the upper 50s and lower 60s. KEY MESSAGE 3... Surface high pressure builds over the Mid- Atlantic through midweek with cooler temperatures expected. Surface high pressure originating from Canada moves overhead through midweek, bringing cooler temperatures to the forecast area. Tuesday will be the coolest day of the long term period with highs ranging from low 40s in the Alleghenies to low 60s in central Virginia. Temperatures will gradually warm each day with highs on Friday in the upper 60s to mid 70s across the area. Dry conditions are expected each day with primarily light winds. Marine Winds should gradually drop below SCA (Small Craft Advisory) levels over the next few hours, before picking up again out of the south later this afternoon into this evening. SCAs (Small Craft Advisories) have been issued for all waters late this afternoon through Saturday morning within southerly flow. A cold front will move over the waters early tomorrow afternoon. Showers and a few thunderstorms may accompany the front, and SMWs may potentially be needed if any stronger storms were to form. Winds shift to out of the northwest behind the front later tomorrow afternoon, and could reach low-end SCA (Small Craft Advisory) levels at times tomorrow evening into tomorrow night. Sub-SCA (Small Craft Advisory) level westerly winds are expected on Monday. Small Craft Advisories are likely on Tuesday as northwest winds gust around 20 knots through the afternoon. Winds diminish overnight, although advisories may be needed in the southern portions of the bay as gusts between 15 and 20 knots continue through Wednesday morning. As surface high pressure builds over the area, winds diminish across all waters and are expected to stay below small craft advisory criteria on Wednesday. Tides / Coastal Flooding Anomalies continue to slowly increase within southerly flow, and will remain slightly elevated through the day today. A few locations may reach Action stage over the next few tide cycles, but no flooding is expected. Anomalies will decrease late Sunday into early next week as winds turn northwesterly. Climate Temperatures of 15 to 25 degrees above average are forecast for today. Below is a list of record daily temperatures for our regional climate sites. Record Daily High and Warm Lows for April 4 Site High/Year(s) Set Warm Low/Year(s) Set DCA 85/2011 66/1981 BWI 86/2011 63/1892 IAD 85/2011 63/1981 DMH 87/2011 66/2025 NAK 83/2011 60/2025 HGR 81/2011 60/1974 MRB 85/2011 63/1981 CHO 88/2011 64/1974 Period of Record (POR) context... .Washington DC area (DCA)... Weather records for the Washington DC area have been recorded at what is now Ronald Reagan Washington National Airport (KDCA) since 1941. The official weather record consists of that data back to 1945, and observations taken in downtown Washington from 1871 to 1944. Temperature records for the Washington DC area extend back to January 1872. .Baltimore MD area (BWI)... Weather records for the Baltimore MD area have been recorded at what is now Baltimore/Washington International Thurgood Marshall Airport (KBWI) since 1950. The official weather record consists of that data back to 1950, and observations taken in downtown Baltimore from 1871 through 1949. Temperature records for the Baltimore MD area extend back to July 1872. .Sterling-Dulles Airport VA area (IAD)... Weather records for the Sterling-Dulles Airport VA area have been recorded at what is now Washington Dulles International Airport (KIAD) since 1960. The official record consists solely of data recorded at the airport. .Baltimore Downtown MD area (DMH)... Weather records for the Baltimore Downtown MD area have been recorded at what is now the Maryland Science Center (KDMH) since 1999. The official weather record consists of that data back to 1999, and observations taken in the City of Baltimore from July 1950 through 1998. Data is missing from June 3 of 2020 through August 14 of 2022 when the observing system had to be removed due to a large construction project. .Annapolis MD area (NAK)... Weather records for the Annapolis MD area have been recorded at what is now the Annapolis U.S. Naval Academy (KNAK) since October 11 of 2001. The official weather record consists of that data back to 2001, and observations that were taken between the Annapolis U.S. Naval Academy and the Annapolis Police Barracks from July of 1894 through October 10 of 2001. .Hagerstown MD area (HGR).... Weather records for the Hagerstown MD area have been recorded at what is now Hagerstown Regional Airport (KHGR) since October of 1998. The official weather record consists of that data back to October of 1998, and observations taken one mile east of Hagerstown from 1899 through September of 1998. .Martinsburg WV area (MRB)... Weather records for the Martinsburg WV area have been recorded at what is now Eastern West Virginia Regional Airport/Shepherd Field (KMRB) since 1938. The official weather record consists of that data back to 1944, and observations taken in downtown Martinsburg from 1891 through 1943. .Charlottesville VA area (CHO)... Weather records for the Charlottesville VA area have been recorded at what is now Charlottesville-Albemarle Airport (KCHO) since April 20 of 1961. The official weather record consists of that data back to April 20 of 1961, and observations taken two miles west of downtown Charlottesville from 1983 through April 19 of 1961. NOAA Baltimore MD/Washington DC Office: Watches - Warnings - Advisories DC...None. MD...Small Craft Advisory from 3pm this afternoon to 2pm EDT Sunday for MDZ008. VA...None. WV...None. Marine Small Craft Advisory from 3pm this afternoon to 2pm EDT Sunday for ANZ530>543. Small Craft Advisory until 4am EDT early this morning for ANZ531>534-539>541-543. |
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