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Last update: 12:00, 24 Aug 2026
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Zagórz sits at the confluence of the San and Osława rivers in the Bukowsko Upland, the foothill zone of the Bieszczady Mountains — a dual-river valley setting that produces the sharper, more localized orographic rainfall typical of Carpathian foothills. A Zagorz rain radar matters most at the town's rail junction, where a hyperlocal radar can show a storm cell building over the confluence before it reaches the tracks.
The mechanism is the Carpathian foothill orographic rainfall pattern, generally higher-precipitation than lowland Poland. Poland-wide, the largest fluvial floods occur in June and July, born in the southern mountains and uplands where precipitation is highest — directly relevant to Zagórz's upland, confluence position. Southern Poland's rail network, which the Zagórz junction anchors, has already been disrupted by extreme rainfall: Storm Boris, in September 2024, caused rail suspensions on multiple southern Poland routes.
RainViewer draws its Zagórz feed from IMGW, refreshed every 5 minutes, so the map reflects new radar scans rather than a forecast written hours earlier. What a live map shows and a forecast cannot: whether a cell building over the San-Osława confluence is heading for the rail junction or breaking apart before it arrives.
Poland's largest fluvial floods occur in this window, born in the southern uplands, directly relevant to Zagórz's confluence position.
[UNVERIFIED] Exact local wet and dry months were not confirmed via search, but the foothill setting keeps rain patterns less predictable than lowland Poland throughout the year.
Southern Poland experienced major floods in 1997 and 2010, both causing widespread regional damage, and Zagórz's Carpathian foothill and confluence position sits within that historically flood-affected zone.
Zagórz is the most southeasterly PKP rail junction, with lines running east to Krościenko on the Ukrainian border, south to Nowy Łupków on the Slovak border, and west to Jasło and the rest of Poland. Storm Boris disrupted southern Poland rail routes in September 2024, and rail staff checking radar before a shift can see whether a cell is approaching the junction.
The Nowy Łupków rail line positions Zagórz as the gateway to Bieszczady Mountains tourism. Travelers checking the radar before continuing south into the mountains can time their trip around a passing storm.
The dual-river confluence sits within a historically flood-affected southern Poland zone, with major regional floods in 1997 and 2010. Residents near the confluence should track heavy rain on radar closely, especially during the June–July flood-risk window.
Lines running to Krościenko on the Ukrainian border and Nowy Łupków on the Slovak border make Zagórz a border-crossing rail node. Travelers timing a cross-border connection can check the radar before the journey.
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. Zagórz sits close enough to Sanok and the Bieszczady range that systems building in the southern uplands are visible on the same map before they reach the confluence.
The fastest way to know is a live hyperlocal radar, since the San-Osława confluence sits in a Carpathian foothill zone where rain can build sharply and locally. RainViewer pulls fresh IMGW radar scans every 5 minutes, showing conditions as they are rather than a forecast written hours earlier.
Zagórz is the most southeasterly PKP junction, with lines to Krościenko, Nowy Łupków, and Jasło, and Storm Boris already disrupted southern Poland rail routes in September 2024. Checking the radar before a journey shows whether a storm is approaching the junction.
The Nowy Łupków rail line runs south from Zagórz as the gateway to Bieszczady Mountains tourism, a route exposed to Carpathian foothill orographic rainfall. Checking the radar before heading south shows whether a cell is building on the route.
Yes — Zagórz's San-Osława confluence sits within a historically flood-affected southern Poland zone, with major regional floods recorded in 1997 and 2010. Residents near the confluence should track radar closely during the June–July flood-risk window, when Poland's largest fluvial floods typically build.
June and July carry the highest flood risk, since Poland's largest fluvial floods are born in the southern uplands during this window. Outside that period, the Carpathian foothill setting still keeps rain less predictable than lowland Poland, so checking radar before a trip is worthwhile year-round.
The San and Osława rivers meet at Zagórz inside the Bukowsko Upland, the foothill zone of the Bieszczady Mountains, where orographic effects sharpen and localize rainfall more than in flat terrain. A regional forecast cannot show exactly when that rain reaches the confluence — only live radar can.
Yes — RainViewer's hyperlocal radar for Zagórz draws directly from IMGW, refreshing every 5 minutes with new scans instead of a periodic forecast update. The map covers the full Bukowsko Upland and Bieszczady foothill zone, so systems building nearby are visible before they reach the confluence.
Yes — RainViewer's rain alerts can be set for a specific point like the rail junction or the San-Osława confluence, so travelers and residents get a notification as a cell approaches instead of checking the map manually. That advance window is what lets a rail worker or resident plan around the rain before it arrives.
Zagórz's rail junction and its San-Osława confluence both sit inside a historically flood-affected zone where southern Poland's biggest floods, in 1997 and 2010, have already struck. Storm Boris showed in September 2024 that heavy rain can still disrupt this rail network with little warning.
A generic forecast says scattered showers for the Bieszczady foothills this week. RainViewer's live hyperlocal radar shows whether that rain is already reaching Zagórz's rail junction or still building over the southern uplands — that is the call a rail worker makes every time an early-summer system develops.
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See whether a cell building over the confluence is about to reach the rail junction in the next two hours.
Set an alert for the rail junction or the San-Osława confluence and get notified before a system reaches it.
See whether a storm is moving in from the southern uplands or breaking apart before it reaches Zagórz.
Review the last 48 hours to see how an early-summer flood-risk system built and moved across the Bieszczady foothills.
Track the rail junction, the San-Osława confluence, and the Nowy Łupków route at the same time.