Starting at 12:10, ending at 12:30.
Last update: 12:00, 24 Aug 2026
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The Wegierka river, a 43.5 km tributary of the Orzyc rising near Czubak hill in the Mlawskie Uplands, runs directly through Przasnysz — and the city itself has formally identified surface sealing and lost soil retention as amplifiers of local flooding risk during heavy rain. A Przasnysz rain radar matters because that risk is not a historical footnote but an active municipal concern: the city groups extreme local flooding with heat waves and droughts as its top climate-adaptation issues. A hyperlocal radar is the practical tool for watching the Wegierka corridor in real time.
The mechanism is a flat north-Mazovian upland setting where low-lying, river-adjacent terrain along the Wegierka has less natural capacity to absorb sudden rain than it once did, as impervious surfaces have expanded across the city. That combination — flat ground plus reduced soil retention — is why Przasnysz commissioned a co-financed green-blue infrastructure and small-retention project, the "Integrated System for Managing Rainwater over the Wegierka River," a direct municipal acknowledgment that a heavy cell here needs faster tracking than a general forecast provides.
RainViewer draws its Przasnysz feed from IMGW, refreshed every 5 minutes, so the map reflects new radar scans rather than a forecast written before rain reached the Wegierka corridor. What a live map shows and a forecast cannot: whether a cell over the river is intensifying toward the city center or moving off before it does.
Przasnysz has not published a specific wet or dry month breakdown, but the city's own risk profile spans both heavy-rain flooding events and drought or heat-wave periods, pointing to high year-to-year rainfall variability rather than one fixed pattern.
The city's documented flood-risk season centers on the Wegierka river corridor, where surface sealing and reduced soil retention are officially named as amplifiers whenever a heavy rain event arrives.
Przasnysz groups drought and heat waves alongside flooding as its top climate-adaptation concerns, meaning dry, hot stretches are as much a part of the local risk calendar as sudden downpours.
The Wegierka river runs through the Przasnysz city center, where officially documented surface sealing and lost soil retention amplify flood risk during heavy rain — a risk serious enough that the city commissioned the "Integrated System for Managing Rainwater over the Wegierka River" project. Residents near the corridor can watch the radar directly rather than waiting for a municipal alert.
Kross S.A., a bicycle manufacturer and one of Przasnysz's named major employers, runs production and shipping operations exposed to heavy rain along the Wegierka corridor. Checking the radar before a loading window shows whether a cell is building over the city or has already passed.
Veolia Polnoc Sp. z o.o., the utility operator named among Przasnysz's major employers, ties municipal water infrastructure directly to the city's flood-and-drought risk management. Utility crews tracking a rain cell on radar can respond to rising Wegierka flow faster than a scheduled inspection allows.
Przasnysz hosts multiple registered transport and spedycja companies offering oversized-load and industrial-relocation services, moving heavy equipment through a city that has formally flagged its own flood exposure. Dispatchers checking the radar before scheduling a large transport get more warning than a standard forecast provides.
RainViewer draws radar data for Poland from the Institute of Meteorology and Water Management (IMGW) via danepubliczne.imgw.pl, updated every 5 minutes. Coverage is comprehensive across the country. Przasnysz sits within the wider north-Mazovian farming county it serves, with rain systems approaching across the Mlawskie Uplands visible on the same map before they reach the Wegierka corridor.
The fastest way to know is a hyperlocal radar, since the city's own flat terrain and reduced soil retention mean a cell over the Wegierka corridor can turn into standing water faster than elsewhere. RainViewer pulls fresh IMGW radar scans every 5 minutes, showing conditions as they are rather than a forecast written before rain reached the river.
Yes — Przasnysz is home to bicycle manufacturer Kross S.A., and riders heading out on local routes benefit from checking the radar before a ride, since a passing cell can build quickly over the flat north-Mazovian terrain. A live radar check is more useful than a general forecast for timing a short ride.
Przasnysz hosts several transport companies handling oversized-load and industrial-relocation work, and the city's documented flood exposure along the Wegierka can affect road conditions during heavy rain. Checking the radar before scheduling a large transport is more useful than a general daily forecast.
Przasnysz has officially identified surface sealing and lost soil retention as amplifiers of flooding risk along the Wegierka river corridor running through the city center. The city considers extreme local flooding serious enough to have commissioned a dedicated rainwater-management project for the river.
No specific wet or dry season is documented for Przasnysz, and the city's own risk profile spans both flooding and drought-heat periods rather than one predictable pattern. Visitors should check the radar close to their trip date rather than relying on a seasonal assumption.
The city has formally identified surface sealing and lost soil retention as amplifiers of local flooding, meaning rain that would once soak into the ground now runs off faster across paved and built-up areas along the Wegierka. A general rainfall forecast cannot capture that ground-level effect — only a live radar tracking the cell's intensity over the corridor comes close.
Yes — RainViewer's hyperlocal radar for Przasnysz draws directly from IMGW, refreshing every 5 minutes with new scans covering the city and the Wegierka river corridor. That coverage is what shows a cell intensifying before it reaches the city center.
Yes — RainViewer's rain alerts can be set for a point along the Wegierka river or near Kross S.A.'s facilities, so residents and businesses get a notification as rain approaches instead of checking the map manually. That advance window matters most given the city's documented flood-risk amplifiers.
Kross S.A.'s production lines and Veolia Polnoc's utility crews both work in a city that has formally named surface sealing as a flood-risk amplifier along the Wegierka corridor. Przasnysz's own climate-adaptation plan treats flooding as seriously as drought and heat waves, and a heavy cell over the river center can turn into standing water faster than the ground can absorb it.
A generic forecast says moderate rain for Przasnysz today. RainViewer's live hyperlocal radar shows the cell already intensifying over the Wegierka corridor while the surrounding farmland stays dry — that is the gap between a forecast and what the city's own flood-risk data says to expect.
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See whether a cell over the Wegierka corridor clears the city center or intensifies over the next two hours.
Set an alert for the Wegierka river corridor or a Kross S.A. facility and get notified before rain reaches it.
See whether a system is tracking in across the Mlawskie Uplands or breaking apart before it arrives.
Review the last 48 hours to see how rain built and moved along the Wegierka river.
Track the Wegierka corridor, the Kross S.A. site, and the surrounding farming county at the same time.