The Delaware Regiment fires at advancing British forces on Long Island on Aug. 27, 1776. National Guard Heritage Painting by Domenick D'Andrea
The Delaware Regiment fires at advancing British forces on Long Island on Aug. 27, 1776. National Guard Heritage Painting by Domenick D'Andrea.

โ€œAt Yorktown the British could not retreat,
Bottled up by Washington and the French Fleet,
Cornwallis surrendered and finally we had won!โ€

Thatโ€™s how the major fighting of the Revolutionary War ended in October 1781 here on Virginia soil, summarized simply by these lyrics many of us Generation X kids remember from the 1970s โ€œSchoolhouse Rockโ€ classic โ€œShot Heard โ€™Round the World,โ€ played between Saturday morning cartoons on ABC.

But in the month following the signing of the Declaration of Independence, the war reached a point when it could have ended in a similar fashion far from Virginiaโ€™s coastline, with Gen. George Washington bottled up by the British fleet and an opposite historical result.

However, the weather broke the Americansโ€™ way in 1776, just as it did in 1781 withย a windstorm thwarting a British escape over the York Riverย in Virginia just before their surrender at Yorktown. In 1776, two different weather shifts worked together to help the Continental Army escape the British by โ€” ironically considering the 1781 turn of events for Lord Cornwallis โ€” crossing a river.

'Pulling Down the Statue of George III", a circa 1854 oil painting by William Walcutt, depicts a mob pulling down a monument of the British king at Bowling Green in what is now New York City shortly after the Declaration of Independence was signed in July 1776. Public domain.
โ€˜Pulling Down the Statue of George III,โ€ a circa 1854 oil painting by William Walcutt, depicts a mob pulling down a monument of the British king at Bowling Green in what is now New York City shortly after the Declaration of Independence was signed in July 1776. Public domain.

Battle for the Big Apple

In August 1776, the war for independence was focused on what is modern-day New York City, which of course looked very different than todayโ€™s tangle of skyscrapers and freeway, a mix of town setting from Dutch settlement, farms and lingering wilderness.

Gen. George Washington had split his Continental Army units between Manhattan Island and Long Island.

โ€œWashington placed General Israel Putnam in charge of Brooklyn Heights and stationed General John Sullivan to the south and Lord Stirling to the southwest on the Heights of Guan,โ€ described historian Mary Stockwell in anย article on the Mount Vernon digital encyclopedia. โ€œHe posted guards along the main roads leading through the heights, but failed to secure the rarely used Jamaica Pass to the east. This proved to be a costly mistake since General [William] Howe planned to lead 10,000 men through the pass on the evening of August 26 and attack the Americans on Brooklyn Heights from the rear. At the same time, General Leopold Philip Von Heister would launch his Hessians against Sullivanโ€™s troops, while the redcoats of General James Grant would attack Stirlingโ€™s position.โ€

Early on Aug. 27, the British attack began, and the Americans, suffering massive losses, were quickly driven to the western end of Long Island, backed against the East River in Brooklyn Heights. Gen. Stirling was captured after leading a charge of 400 soldiers from Maryland โ€” over 250 were killed โ€” that bought time for others to flee to more defensible positions.

Howe, commander in chief of the British Army in North America at the time, knew that British warships were poised to sail up the East River. He halted the fighting late on Aug. 27 and ordered his troops to build trenches around the Colonialsโ€™ position in Brooklyn Heights. The idea was to bottle up Washington and 9,000 of his soldiers with the expectation that he would be forced to surrender, effectively ending the American Revolution.

Washington decided to remove the 9,000 troops from Brooklyn across the East River into Manhattan, a move that could easily end in disaster if the British navy closed off the river and/or Gen. Howeโ€™s forces made a decisive charge as the Colonials were strung out in the escape.

East River escape in norโ€™easter

But ships of that era were driven by sail guided by wind, which sometimes didnโ€™t cooperate with manโ€™s plans.

โ€œOn August 28, the winds shifted, and a norโ€™easter arrived that prevented the Royal Navy from entering the East River and cutting Washingtonโ€™s men off,โ€ statesย a post on American Battlefield Trust exploring weather effects on 18thย century warfare. โ€œThen, on the night of August 29, Washington began moving all 9,000 men across the river to Manhattan. The norโ€™easter wind died down that night and made it easier for the troops to get in small boats at Brooklyn ferry and cross the river.โ€

Oarsmen worked feverishly through a rainy night to deliver Colonial troops across the East River to relative safety in Manhattan.

โ€œCrewing the evacuee-filled rowboats, barges and canoes were peacetime sailors and fishermen from a recently arrived Massachusetts regiment under Colonel John Glover,โ€ย HistoryNet recounts in itsย โ€œEscape from New Yorkโ€ย article. โ€œAfter muffling the vesselsโ€™ oars with cloth, they first transported cannons, ammunition, supplies and horses. Next came the wounded. Then, through the night until just before dawn, they ferried the remaining cold, wet, defeated American soldiers across the river.โ€

There werenโ€™t enough oarsmen or boats, and not enough time, to move all the soldiers before the sun came up.ย ย Hundreds, perhaps thousands, of Colonial troops remained in Brooklyn as the sun rose, with morning light threatening to fully reveal the ongoing evacuation to Howe and the British.

Enter the fog

But a final meteorological blessing fell upon Washington: Dense fog.

According to American Battlefield Trust: โ€œAs the sun began to rise on August 30, a heavy fog descended on Brooklyn, concealing Washingtonโ€™s troops. The fog hung around for just enough time that the rear guard was able to get in boats toย leave Brooklyn.โ€

Fog partly obscures the Brooklyn Bridge, which spans the East River in modern-day New York. Gen. George Washington and Colonial forces didn't have a bridge at their disposal, but crossed the East River by boat to escape British forces on Aug. 29-30, 1776. A dense fog helped the Colonials escape without detection. Public domain, Wikimedia Commons.
Fog partly obscures the Brooklyn Bridge, which spans the East River in modern-day New York. Gen. George Washington and Colonial forces didnโ€™t have a bridge at their disposal, but crossed the East River by boat to escape British forces on Aug. 29-30, 1776. A dense fog helped the Colonials escape without detection. Public domain, Wikimedia Commons.

The fog, likely caused as cool breezes from the coastal low commonly called a โ€œnorโ€™easterโ€ blew over summer-warmed waters around the New York islands, enabled the final removal of troops to be fully cloaked from the British. Washington was said to be the last of the Colonials to leave Brooklyn, stepping onto the last boat that would cross the East River to Manhattan.

โ€œAs the final boats departed Brooklyn, the fog lifted and within a matter of minutes, British troops advanced into the now deserted American lines,โ€ states the American Battlefield Trust account. โ€œWithout the weather, it is likely the Americans would not have been successful in their evacuation.โ€

โ€œAs the fog lifted, the British were left bewildered as they realized the Continental Army was gone,โ€ statesย another account on 1776 History.

The British were the clear winners of the Battle of Long Island and would eventually succeed in their goal to take New York City and its critical harbor and ports in subsequent weeks. They wouldnโ€™t leave until Evacuation Day on Nov. 25, 1783, once the terms of the Treaty of Paris became finalized. Washington rode in triumphantly.

But the dense fog that allowed Washington and his troops to escape a possible Revolutionary War-ending defeat in 1776, often attributed to divine intervention, saved the Colonialsโ€™ cause, allowing the Revolutionary War to continue to its conclusion and an American victory in Yorktown, Virginia, five years later.

Kevin Myatt has written about Southwest and Southside Virginia weather for the past two decades, previously...