Weather Alerts For Haddon Heights, NJ

# HEADLINE -------------------- HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 8 PM EDT THIS EVENING # DETAILS -------------------- WHAT Heat index values up to 102 expected. WHERE In Delaware, New Castle County. In New Jersey, Camden, Gloucester, and Northwestern Burlington Counties. In Pennsylvania, Delaware, Eastern Montgomery, Lower Bucks, and Philadelphia Counties. WHEN From 11 AM this morning to 8 PM EDT this evening. IMPACTS Hot temperatures and high humidity may cause heat illnesses. ISSUED AT Thursday, September 3, 2026 at 1:26 AM EDT ISSUED BY National Weather Service Mount Holly NJ HEADER URGENT - WEATHER MESSAGE # PRECAUTIONARY/PREPAREDNESS ACTIONS -------------------- Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. # AREAS AFFECTED -------------------- Philadelphia, Camden, Delaware, Eastern Montgomery, Gloucester, Lower Bucks, New Castle, Northwestern Burlington Including the cities of Camden, Cherry Hill, Moorestown, Doylestown, Lansdale, Media, Mount Holly, Morrisville, Philadelphia, Norristown, Glassboro, and Wilmington

# SUMMARY -------------------- The National Weather Service in Mount Holly has issued a - Flash Flood Warning for... Northern New Castle County in northern Delaware... Northwestern Burlington County in southern New Jersey... Northwestern Camden County in southern New Jersey... Northwestern Gloucester County in southern New Jersey... Southeastern Bucks County in southeastern Pennsylvania... Chester County in southeastern Pennsylvania... Delaware County in southeastern Pennsylvania... Southeastern Montgomery County in southeastern Pennsylvania... Philadelphia County in southeastern Pennsylvania... - Until 530 AM EDT. - At 134 AM EDT, Doppler radar and automated rain gauges indicated thunderstorms producing heavy rain across the warned area. Between 0.5 and 1 inch of rain has fallen. The expected rainfall rate is 0.5 to 1 inch in 30 minutes. Additional rainfall amounts of 1 to 2 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. # DETAILS -------------------- HAZARD Flash flooding caused by thunderstorms. SOURCE Radar and automated gauges. IMPACT Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING INCLUDE Philadelphia, Camden, Wilmington, Newark, West Chester, Gloucester City, Cherry Hill, Bensalem, Mount Laurel, Norristown, Chester and Willingboro. ISSUED AT Thursday, September 3, 2026 at 1:34 AM EDT ISSUED BY National Weather Service Mount Holly NJ HEADER BULLETIN - EAS ACTIVATION REQUESTED | Flash Flood Warning # PRECAUTIONARY/PREPAREDNESS ACTIONS -------------------- Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding.

Closest strike: 9.4 miles Stay Alert! Remain in a safe area until there has been no lightning within 10 miles of this location for 30 minutes. Please be aware that lightning activity can remain high even when a storm is moving away from your location. Even if rain has stopped, do not leave your safe area until WeatherBug indicates that lightning is more than 10 miles away from this selected location. IF OUTDOORS Avoid water, high ground, and open spaces. Avoid all metal objects including electric wires, fences, and machinery. Find a safe area in a building or in a fully enclosed vehicle with the windows completely shut. Unsafe places include underneath canopies, small picnic or rain shelters, convertibles, or near trees. IF INDOORS Avoid water and stay away from doors and windows. Avoid using a hard line telephone. Take off headphones. Turn off, unplug, and stay away from appliances, computers, power tools, and TV sets. Lightning may strike exterior electric and phone lines, inducing shocks to inside equipment.

There is a Marginal Severe Storm Risk for your location. Continue reading for today's outlook from the National Weather Service's Storm Prediction Center. -------------------- National Severe Storm Outlook THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THIS EVENING ACROSS PARTS OF THE SOUTHERN TIER OF NEW YORK INTO NORTHERN AND CENTRAL PENNSYLVANIA SUMMARY Thunderstorms posing a risk for potentially damaging wind gusts may continue into late evening across parts of the Southern Tier of New York into northern and central Pennsylvania. Great Lakes into Mid Atlantic To the south of a modest lower/mid-tropospheric cyclone, now migrating to the east of James Bay, the leading edge of broad mid-level troughing is in the process of gradually shifting east-southeast of the lower Great Lakes region. Forcing for ascent associated with this feature has contributed to the evolution of an organizing cluster of storms now spreading across western New York state, ahead of a southward advancing segment of the surface frontal zone trailing the cyclone. However, in the wake of an early day convective cluster, appreciable warm sector boundary-layer instability is becoming confined to a narrowing corridor across the Allegheny Plateau. As the ongoing convective system continues east-southeastward, and the onset of boundary-layer cooling progresses, more stable southeasterly near-surface updraft inflow seems likely to weaken convection and reduce the associated risk for severe weather as it spreads toward northern Mid Atlantic coastal areas tonight. Upstream, convection-allowing guidance suggests that forcing for ascent associated with lower/mid-tropospheric warm advection may support renewed widely scattered thunderstorm development overnight. This is mostly likely to focus near/to the cool side of the stalling trailing frontal zone on the southern fringe of the westerlies, across southern portions of the Great Lakes into Upper Midwest. Aided by modest strengthening of westerly flow in excess of 30 kt around 850 mb, and steep lapse rates of lower/mid-tropospheric temperature and potential wet-bulb temperature, there appears potential for one or two upscale growing clusters which may pose a risk for severe hail and wind. Northern Rockies and adjacent Great Plains The risk for severe weather has diminished considerably in the wake of weakening convection now overspreading the Montana international border. As the supporting vigorous short wave impulse continues to pivot north of the border into the Canadian Prairies this evening, this appears unlikely to change. An isolated strong storm to the east-southeast of Miles City MT does appear supported by updraft inflow of relatively moist boundary-layer air characterized by sizable CAPE in excess of 2000 J/kg. However, it is not clear how long this will be maintained, as inhibition increases with boundary-layer cooling and perhaps some further warming aloft.

Pollen Index: 9.1 Pollen Level: medium-high Predominant Pollen: Ragweed, Chenopods and Nettle. Based on past pollen counts and expected weather conditions, pollen levels for Thursday will be falling in the moderate range. Since the weather has a major influence on pollen dispersal, this decrease is due in part to rising humidity, relatively calmer winds and expected precipitation in the morning, afternoon and evening which tends to wash pollen out of the air. This reduction in pollen levels should be a relief to allergy sufferers.