Jefferson County, NY

Alerts

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Briefing

Last updated:

Tuesday, Jul 21, 2026, 4:56 AM

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From the Forecaster

Slight Risk for Severe Weather Today

Created by the NWS Buffalo WFO

An area of weakening thunderstorms is expected to move into western NY this morning. Additional development of thunderstorms is expected across the region through this evening. Isolated to scattered severe thunderstorms are possible and most likely between 12PM-10PM.

Buffalo Area Forecast Discussion

Seven-day Weather Risk Overview

The graphic shows the daily risk summary for 7 days. Daily risk is based on highest risk factor for that day.

	Tue 7/21	Wed 7/22	Thu 7/23	Fri 7/24	Sat 7/25	Sun 7/26	Mon 7/27
risk level	out of 10	out of 10				out of 10	out of 10

No risk

Low risk

High risk

See the detailed risk analysis

Radar

Time shown:

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dBz	Intensity
−35–0	Extremely light (drizzle/snow)
0–20	Very light precipitation or general clutter
20–40	Light precipitation
40–50	Moderate precipitation
50–65	Heavy precipitation or some hail
>65	Extremely heavy precipitation including water-coated hail

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Weather Forecasting Office

Buffalo Forecast Office