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A severe thunderstorm watch is in effect across New Jersey Friday as forecasters warn that intense storms could bring locally damaging winds, torrential rainfall and flash flooding. The weather threat arrives after a very hot and humid day, with heat index values potentially reaching 104 degrees.
The National Weather Service said isolated to scattered severe thunderstorms are expected between approximately 4 p.m. and 11 p.m. Friday. The entire state is under the watch until 9 p.m., and residents are urged to stay alert as conditions could change quickly.
Severe Thunderstorm Watch Raises Flash Flooding Concerns
According to National Weather Service forecasters, the primary risks from Friday night’s storms are locally damaging winds and heavy rainfall. While no flash flood alerts had been issued as of Friday afternoon, forecasters warned that rainfall rates could reach 2 to 3 inches per hour.
That amount of rain falling in a short period could overwhelm drainage systems and create dangerous flooding, particularly in urbanized areas. Streets, underpasses, low-lying roads and areas near streams may become hazardous if storms repeatedly move over the same locations.
The greatest threat is expected along and northwest of the I-95 corridor. However, storms can develop or strengthen outside the most likely risk area, meaning residents across New Jersey should continue monitoring official weather updates.
Critical Storm Timing For Friday Night
The most active period is expected during the evening commute and into the nighttime hours. The combination of high humidity, extreme heat and approaching thunderstorms may fuel rapidly developing cells capable of producing intense downpours and strong wind gusts.
- Severe storms are possible from about 4 p.m. to 11 p.m. Friday.
- The statewide severe thunderstorm watch remains in place until 9 p.m.
- Damaging winds and flash flooding are the main hazards.
- Rainfall rates could reach 2 to 3 inches per hour.
- The greatest threat is along and northwest of the I-95 corridor.
Drivers should avoid flooded roadways and never attempt to cross water covering a street. Even shallow moving water can sweep vehicles away or conceal washed-out pavement and other hazards.
Heat Advisory Continues Across Most Of New Jersey
The storms will follow a dangerous heat episode. A Heat Advisory remains in effect for most of New Jersey through Saturday, with the far southern counties serving as the main exception.
Heat index values could climb to 104 degrees, making outdoor conditions especially uncomfortable and potentially dangerous. Residents should drink plenty of water, limit strenuous activity during the hottest part of the day and check on older adults, young children and people with medical conditions.
The arrival of thunderstorms does not immediately eliminate heat danger. Before storms develop, temperatures and humidity may remain oppressive. During storms, lightning, sudden wind shifts and reduced visibility can create additional risks for people outdoors.
More Storms Possible Through Next Week
Friday’s weather threat may not be a one-day event. More storms are possible Saturday, although forecasters said details remain unclear. Sunday is expected to be dry and slightly less humid, offering a brief break from the unsettled pattern.
Hot, humid and stormy weather could return Monday and Tuesday. Forecasters expect a cold front late Tuesday or Wednesday to break the excessive heat and humidity, but the front could also extend the stormy pattern before conditions improve.
Residents should keep phones charged, review multiple ways to receive weather alerts and know where to go if a warning is issued. During a thunderstorm, move indoors, stay away from windows and avoid using wired electrical equipment.
What New Jersey Residents Should Do Now
With a severe thunderstorm watch in place, residents should treat the forecast seriously without assuming severe weather is guaranteed at every location. A watch means conditions are favorable for dangerous storms, while a warning indicates that hazardous weather is occurring or imminent.
- Secure outdoor furniture, trash cans and loose decorations.
- Bring pets indoors before storms arrive.
- Postpone outdoor activities during periods of lightning.
- Keep emergency supplies, flashlights and medications accessible.
- Check travel conditions before leaving home.
- Move to higher ground if flooding begins.
Weather conditions can shift rapidly during the evening. The latest information from the National Weather Service and local emergency officials will be especially important for residents in flood-prone communities and those traveling near the I-95 corridor.
Frequently Asked Questions
What does the severe thunderstorm watch mean?
A severe thunderstorm watch means atmospheric conditions are favorable for severe thunderstorms. Residents should remain prepared and monitor alerts for possible warnings.
When are storms expected Friday?
Isolated to scattered severe thunderstorms are expected between about 4 p.m. and 11 p.m. Friday, with the statewide watch continuing until 9 p.m.
What are the main dangers?
The primary threats are locally damaging winds, very heavy rainfall and flash flooding. Rainfall rates could reach 2 to 3 inches per hour.
Which areas face the greatest threat?
The greatest threat is along and northwest of the I-95 corridor, although dangerous storms may occur elsewhere in New Jersey.
Will severe weather continue this weekend?
More storms are possible Saturday. Sunday should be drier and slightly less humid, but hot, humid and stormy conditions may return Monday and Tuesday.
