Extended Streamflow Prediction
Issued by NWS Arkansas-Red Basin RFC
Issued by NWS Arkansas-Red Basin RFC
650
FGUS64 KTUA 041814
ESPTUA
National Weather Service
Arkansas Red River Forecast Center
2026 Water Supply Forecast Issued as of June 4, 2026
Forecast Runoff
Most Reasonable Reasonable Average
Probable Maximum Minimum 1991-2020
Forecast Forecast % % %
Point Period 1000 30YR 1000 30YR 1000 30YR 1000
(*) AF AVG. AF AVG. AF AVG. AF
*(1)Apr-Sep
UPPER ARKANSAS RIVER BASIN, COLORADO
ARKANSAS RIVER
Granite, Co 001 65 33 109 56 99 51 195
Salida, Co 001 100 34 158 54 64 22 290
Canon City, Co 001 130 35 201 54 65 17 375
Pueblo Abv, Co 001 140 33 230 54 72 17 425
GRAPE CREEK
Westcliffe Nr, Co 001 3.6 24 8.9 60 2.3 16 14.8
CUCHARAS RIVER
Boyd Ranch, La Veta 001 2.2 19 6.2 54 1.2 11 11.4
PURGATOIRE RIVER
Trinidad, Co 001 6.2 15 24 57 3.1 7 42
HUERFANO RIVER
Redwing Nr, Co 001 4.7 35 8.3 61 2.9 21 13.6
CHALK CREEK
Nathrop Nr, Co 001 10.6 42 18.1 72 4.9 20 25
LOWER ARKANSAS RIVER BASIN, COLORADO
**ARKANSAS RIVER
Las Animas, Co 001 70 48 108 74 29 20 147
**PURGATOIRE RIVER
Las Animas, Co 001 6 25 18 75 1.5 6 24
*Indicates the 30-year normal is based upon the 30-year median rather than the 30-year mean.
**Indicates the historical and forecast information is regulated or observed flow at the gage.
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