Weather Prediction Center

National Oceanic and Atmospheric Administration

Excessive Rainfall Forecast

This web page depicts the Excessive Rainfall Outlook (ERO). In the ERO, the Weather Prediction Center (WPC) forecasts the probability that rainfall will exceed flash flood guidance (FFG) within 40 kilometers (25 miles) of a point.

Product Info | Understanding ERO Categories | ERO Climatology | Day 1 threat area | Day 2 threat area | Day 3 threat area

Map Overlays
CWAs		Counties
RFCs		FEMA Regions
States		NWS Forecast Zones
Urban Areas		ARTCC/FIR

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Day 1 Excessive Rainfall Outlook
Valid 12Z Mon Mar 27 2023 Through 12Z Tue Mar 28 2023
Issued: 0737Z Mon Mar 27 2023
Forecaster: HURLEY
DOC/NOAA/NWS/NCEP/WPC

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Excessive Rainfall Forecaster Discussion

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Download Excessive Rainfall Outlooks in GIS Format Day 4 & 5 are Experimental KML: Day1 \| Day2 \| Day3 \| Day4 \| Day5 Shapefile: Day1 \| Day2 \| Day3 \| Day4 \| Day5 GeoJson: Day1 \| Day2 \| Day3 ArcGIS REST Service: Day1 \| Day2 \| Day3 \| Day4 \| Day5

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Excessive Rainfall Outlook Day 1 Static Image

Day 1 Excessive Rainfall Outlook
Outlook	Population Impacted	Area (Sq Mi) Impacted
Slight (At Least 15%)	4,019,320	25,846
Marginal (At Least 5%)	30,400,700	200,229

Weather Prediction Center National Oceanic and Atmospheric Administration

Weather Prediction Center

National Oceanic and Atmospheric Administration