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NWS / NWPSSite ID: ALZM5active

NWS / NWPS ALZM5

South Fork Zumbro River near Oronoco

South Fork Zumbro River • Olmsted • MN

Latest public reading30.88 ftObserved Jun 21, 2026 at 5:15 PM CDT
TrendFallingNo forecast linked
Data freshness DelayedObservation 60 minutes old
Flood contextContext unavailableFetched Timestamp unavailable

Stage and discharge

Observed source readings

Stage and discharge

Daily rollups and linked forecast values

Observed

Stage and discharge chart includes 60 observed points.

Line chart: Observed02004006008001.0K1.2K1.4K2026-03-022026-04-092026-05-15
Data series

Flood-stage context

Source-published thresholds where available

Flood-stage context unavailable

Flood category levels are not published or not linked for this gauge.

Forecast

Linked NWS/NWPS values

Forecast unavailable

Forecasts are not available for this gauge in RiverStat.us launch sources.

Observations

flow

187 cfs

Observed May 14, 2026 at 7:00 PM CDT

flow

181 cfs

Observed May 13, 2026 at 7:00 PM CDT

flow

199 cfs

Observed May 12, 2026 at 7:00 PM CDT

flow

222 cfs

Observed May 10, 2026 at 7:00 PM CDT

flow

218 cfs

Observed May 9, 2026 at 7:00 PM CDT

flow

229 cfs

Observed May 8, 2026 at 7:00 PM CDT

flow

235 cfs

Observed May 7, 2026 at 7:00 PM CDT

flow

244 cfs

Observed May 5, 2026 at 7:00 PM CDT

flow

264 cfs

Observed May 4, 2026 at 7:00 PM CDT

flow

268 cfs

Observed May 3, 2026 at 7:00 PM CDT

flow

275 cfs

Observed May 2, 2026 at 7:00 PM CDT

flow

312 cfs

Observed Apr 30, 2026 at 7:00 PM CDT

flow

324 cfs

Observed Apr 29, 2026 at 7:00 PM CDT

flow

345 cfs

Observed Apr 28, 2026 at 7:00 PM CDT

flow

381 cfs

Observed Apr 27, 2026 at 7:00 PM CDT

flow

354 cfs

Observed Apr 25, 2026 at 7:00 PM CDT

flow

382 cfs

Observed Apr 24, 2026 at 7:00 PM CDT

flow

423 cfs

Observed Apr 23, 2026 at 7:00 PM CDT

flow

448 cfs

Observed Apr 22, 2026 at 7:00 PM CDT

flow

509 cfs

Observed Apr 20, 2026 at 7:00 PM CDT

flow

518 cfs

Observed Apr 19, 2026 at 7:00 PM CDT

flow

554 cfs

Observed Apr 18, 2026 at 7:00 PM CDT

flow

639 cfs

Observed Apr 17, 2026 at 7:00 PM CDT

flow

837 cfs

Observed Apr 15, 2026 at 7:00 PM CDT

flow

981 cfs

Observed Apr 14, 2026 at 7:00 PM CDT

flow

1,270 cfs

Observed Apr 13, 2026 at 7:00 PM CDT

flow

787 cfs

Observed Apr 12, 2026 at 7:00 PM CDT

flow

412 cfs

Observed Apr 10, 2026 at 7:00 PM CDT

flow

447 cfs

Observed Apr 9, 2026 at 7:00 PM CDT

flow

490 cfs

Observed Apr 8, 2026 at 7:00 PM CDT

flow

543 cfs

Observed Apr 7, 2026 at 7:00 PM CDT

flow

698 cfs

Observed Apr 5, 2026 at 7:00 PM CDT

flow

876 cfs

Observed Apr 4, 2026 at 7:00 PM CDT

flow

1,040 cfs

Observed Apr 3, 2026 at 7:00 PM CDT

flow

554 cfs

Observed Apr 2, 2026 at 7:00 PM CDT

flow

242 cfs

Observed Mar 31, 2026 at 7:00 PM CDT

flow

281 cfs

Observed Mar 30, 2026 at 7:00 PM CDT

flow

305 cfs

Observed Mar 29, 2026 at 7:00 PM CDT

flow

296 cfs

Observed Mar 28, 2026 at 7:00 PM CDT

flow

338 cfs

Observed Mar 26, 2026 at 7:00 PM CDT

flow

383 cfs

Observed Mar 25, 2026 at 7:00 PM CDT

flow

408 cfs

Observed Mar 24, 2026 at 7:00 PM CDT

flow

451 cfs

Observed Mar 23, 2026 at 7:00 PM CDT

flow

687 cfs

Observed Mar 21, 2026 at 7:00 PM CDT

flow

647 cfs

Observed Mar 20, 2026 at 7:00 PM CDT

flow

284 cfs

Observed Mar 19, 2026 at 7:00 PM CDT

flow

238 cfs

Observed Mar 18, 2026 at 7:00 PM CDT

flow

202 cfs

Observed Mar 16, 2026 at 7:00 PM CDT

flow

215 cfs

Observed Mar 15, 2026 at 7:00 PM CDT

flow

180 cfs

Observed Mar 14, 2026 at 7:00 PM CDT

flow

209 cfs

Observed Mar 13, 2026 at 7:00 PM CDT

flow

242 cfs

Observed Mar 11, 2026 at 7:00 PM CDT

flow

247 cfs

Observed Mar 10, 2026 at 7:00 PM CDT

flow

273 cfs

Observed Mar 9, 2026 at 7:00 PM CDT

flow

314 cfs

Observed Mar 8, 2026 at 7:00 PM CDT

flow

538 cfs

Observed Mar 6, 2026 at 6:00 PM CST

flow

147 cfs

Observed Mar 5, 2026 at 6:00 PM CST

flow

130 cfs

Observed Mar 4, 2026 at 6:00 PM CST

flow

136 cfs

Observed Mar 3, 2026 at 6:00 PM CST

flow

131 cfs

Observed Mar 1, 2026 at 6:00 PM CST

flow

139 cfs

Observed Feb 28, 2026 at 6:00 PM CST

flow

143 cfs

Observed Feb 27, 2026 at 6:00 PM CST

flow

147 cfs

Observed Feb 26, 2026 at 6:00 PM CST

flow

154 cfs

Observed Feb 24, 2026 at 6:00 PM CST

flow

158 cfs

Observed Feb 23, 2026 at 6:00 PM CST

flow

165 cfs

Observed Feb 22, 2026 at 6:00 PM CST

flow

163 cfs

Observed Feb 21, 2026 at 6:00 PM CST

flow

213 cfs

Observed Feb 19, 2026 at 6:00 PM CST

flow

235 cfs

Observed Feb 18, 2026 at 6:00 PM CST

flow

257 cfs

Observed Feb 17, 2026 at 6:00 PM CST

flow

191 cfs

Observed Feb 16, 2026 at 6:00 PM CST

flow

154 cfs

Observed Feb 14, 2026 at 6:00 PM CST

flow

138 cfs

Observed Feb 13, 2026 at 6:00 PM CST

flow

132 cfs

Observed Feb 12, 2026 at 6:00 PM CST

flow

128 cfs

Observed Feb 11, 2026 at 6:00 PM CST

flow

110 cfs

Observed Feb 9, 2026 at 6:00 PM CST

flow

117 cfs

Observed Feb 8, 2026 at 6:00 PM CST

flow

122 cfs

Observed Feb 7, 2026 at 6:00 PM CST

flow

113 cfs

Observed Feb 6, 2026 at 6:00 PM CST

flow

117 cfs

Observed Feb 4, 2026 at 6:00 PM CST

flow

134 cfs

Observed Feb 3, 2026 at 6:00 PM CST

flow

175 cfs

Observed Feb 2, 2026 at 6:00 PM CST

flow

289 cfs

Observed Feb 1, 2026 at 6:00 PM CST

flow

267 cfs

Observed Jan 30, 2026 at 6:00 PM CST

flow

112 cfs

Observed Jan 29, 2026 at 6:00 PM CST

flow

265 cfs

Observed Jan 28, 2026 at 6:00 PM CST

flow

135 cfs

Observed Jan 27, 2026 at 6:00 PM CST

flow

121 cfs

Observed Jan 23, 2026 at 6:00 PM CST

flow

129 cfs

Observed Jan 22, 2026 at 6:00 PM CST

flow

1,350 cfs

Observed Jan 21, 2026 at 6:00 PM CST

flow

319 cfs

Observed Jan 19, 2026 at 6:00 PM CST

flow

355 cfs

Observed Jan 18, 2026 at 6:00 PM CST

flow

519 cfs

Observed Jan 17, 2026 at 6:00 PM CST

flow

204 cfs

Observed Jan 16, 2026 at 6:00 PM CST

flow

187 cfs

Observed Jan 14, 2026 at 6:00 PM CST

flow

202 cfs

Observed Jan 13, 2026 at 6:00 PM CST

flow

183 cfs

Observed Jan 12, 2026 at 6:00 PM CST

flow

183 cfs

Observed Jan 11, 2026 at 6:00 PM CST

flow

194 cfs

Observed Jan 9, 2026 at 6:00 PM CST

flow

181 cfs

Observed Jan 8, 2026 at 6:00 PM CST

flow

128 cfs

Observed Jan 7, 2026 at 6:00 PM CST

flow

138 cfs

Observed Jan 6, 2026 at 6:00 PM CST

flow

118 cfs

Observed Jan 4, 2026 at 6:00 PM CST

flow

122 cfs

Observed Jan 3, 2026 at 6:00 PM CST

flow

132 cfs

Observed Jan 2, 2026 at 6:00 PM CST

flow

134 cfs

Observed Jan 1, 2026 at 6:00 PM CST

flow

140 cfs

Observed Dec 30, 2025 at 6:00 PM CST

flow

126 cfs

Observed Dec 29, 2025 at 6:00 PM CST

flow

123 cfs

Observed Dec 28, 2025 at 6:00 PM CST

flow

136 cfs

Observed Dec 27, 2025 at 6:00 PM CST

flow

117 cfs

Observed Dec 25, 2025 at 6:00 PM CST

flow

107 cfs

Observed Dec 24, 2025 at 6:00 PM CST

flow

101 cfs

Observed Dec 23, 2025 at 6:00 PM CST

flow

109 cfs

Observed Dec 22, 2025 at 6:00 PM CST

flow

111 cfs

Observed Dec 20, 2025 at 6:00 PM CST

flow

111 cfs

Observed Dec 19, 2025 at 6:00 PM CST

flow

299 cfs

Observed Dec 18, 2025 at 6:00 PM CST

flow

131 cfs

Observed Dec 17, 2025 at 6:00 PM CST

flow

103 cfs

Observed Dec 15, 2025 at 6:00 PM CST

flow

113 cfs

Observed Dec 14, 2025 at 6:00 PM CST

flow

373 cfs

Observed Dec 13, 2025 at 6:00 PM CST

flow

376 cfs

Observed Dec 12, 2025 at 6:00 PM CST

flow

122 cfs

Observed Dec 10, 2025 at 6:00 PM CST

flow

120 cfs

Observed Dec 9, 2025 at 6:00 PM CST

flow

132 cfs

Observed Dec 8, 2025 at 6:00 PM CST

flow

116 cfs

Observed Dec 7, 2025 at 6:00 PM CST

flow

124 cfs

Observed Dec 5, 2025 at 6:00 PM CST

flow

128 cfs

Observed Dec 4, 2025 at 6:00 PM CST

flow

115 cfs

Observed Dec 3, 2025 at 6:00 PM CST

flow

136 cfs

Observed Dec 2, 2025 at 6:00 PM CST

flow

122 cfs

Observed Nov 30, 2025 at 6:00 PM CST

flow

130 cfs

Observed Nov 29, 2025 at 6:00 PM CST

flow

134 cfs

Observed Nov 28, 2025 at 6:00 PM CST

flow

134 cfs

Observed Nov 27, 2025 at 6:00 PM CST

flow

128 cfs

Observed Nov 25, 2025 at 6:00 PM CST

flow

157 cfs

Observed Nov 24, 2025 at 6:00 PM CST

flow

123 cfs

Observed Nov 23, 2025 at 6:00 PM CST

flow

137 cfs

Observed Nov 22, 2025 at 6:00 PM CST

flow

129 cfs

Observed Nov 20, 2025 at 6:00 PM CST

flow

133 cfs

Observed Nov 19, 2025 at 6:00 PM CST

flow

141 cfs

Observed Nov 18, 2025 at 6:00 PM CST

flow

137 cfs

Observed Nov 17, 2025 at 6:00 PM CST

flow

125 cfs

Observed Nov 15, 2025 at 6:00 PM CST

flow

129 cfs

Observed Nov 14, 2025 at 6:00 PM CST

flow

131 cfs

Observed Nov 13, 2025 at 6:00 PM CST

flow

129 cfs

Observed Nov 12, 2025 at 6:00 PM CST

flow

131 cfs

Observed Nov 10, 2025 at 6:00 PM CST

flow

129 cfs

Observed Nov 9, 2025 at 6:00 PM CST

flow

139 cfs

Observed Nov 8, 2025 at 6:00 PM CST

flow

120 cfs

Observed Nov 7, 2025 at 6:00 PM CST

flow

130 cfs

Observed Nov 5, 2025 at 6:00 PM CST

flow

130 cfs

Observed Nov 4, 2025 at 6:00 PM CST

flow

130 cfs

Observed Nov 3, 2025 at 6:00 PM CST

flow

140 cfs

Observed Nov 2, 2025 at 6:00 PM CST

flow

124 cfs

Observed Oct 31, 2025 at 7:00 PM CDT

flow

130 cfs

Observed Oct 30, 2025 at 7:00 PM CDT

flow

142 cfs

Observed Oct 29, 2025 at 7:00 PM CDT

flow

142 cfs

Observed Oct 28, 2025 at 7:00 PM CDT

flow

136 cfs

Observed Oct 26, 2025 at 7:00 PM CDT

flow

149 cfs

Observed Oct 25, 2025 at 7:00 PM CDT

flow

136 cfs

Observed Oct 24, 2025 at 7:00 PM CDT

flow

134 cfs

Observed Oct 23, 2025 at 7:00 PM CDT

flow

147 cfs

Observed Oct 21, 2025 at 7:00 PM CDT

flow

132 cfs

Observed Oct 20, 2025 at 7:00 PM CDT

flow

153 cfs

Observed Oct 19, 2025 at 7:00 PM CDT

flow

141 cfs

Observed Oct 18, 2025 at 7:00 PM CDT

flow

169 cfs

Observed Oct 16, 2025 at 7:00 PM CDT

flow

167 cfs

Observed Oct 15, 2025 at 7:00 PM CDT

flow

176 cfs

Observed Oct 14, 2025 at 7:00 PM CDT

flow

213 cfs

Observed Oct 13, 2025 at 7:00 PM CDT

flow

137 cfs

Observed Oct 11, 2025 at 7:00 PM CDT

flow

147 cfs

Observed Oct 10, 2025 at 7:00 PM CDT

flow

165 cfs

Observed Oct 9, 2025 at 7:00 PM CDT

flow

156 cfs

Observed Oct 8, 2025 at 7:00 PM CDT

flow

158 cfs

Observed Oct 6, 2025 at 7:00 PM CDT

flow

176 cfs

Observed Oct 5, 2025 at 7:00 PM CDT

flow

161 cfs

Observed Oct 4, 2025 at 7:00 PM CDT

flow

158 cfs

Observed Oct 3, 2025 at 7:00 PM CDT

flow

177 cfs

Observed Oct 1, 2025 at 7:00 PM CDT

flow

198 cfs

Observed Sep 30, 2025 at 7:00 PM CDT

flow

193 cfs

Observed Sep 29, 2025 at 7:00 PM CDT

flow

213 cfs

Observed Sep 28, 2025 at 7:00 PM CDT

flow

235 cfs

Observed Sep 26, 2025 at 7:00 PM CDT

flow

280 cfs

Observed Sep 25, 2025 at 7:00 PM CDT

flow

294 cfs

Observed Sep 24, 2025 at 7:00 PM CDT

flow

362 cfs

Observed Sep 23, 2025 at 7:00 PM CDT

flow

558 cfs

Observed Sep 21, 2025 at 7:00 PM CDT

flow

130 cfs

Observed Sep 20, 2025 at 7:00 PM CDT

flow

129 cfs

Observed Sep 19, 2025 at 7:00 PM CDT

flow

154 cfs

Observed Sep 18, 2025 at 7:00 PM CDT

flow

142 cfs

Observed Sep 16, 2025 at 7:00 PM CDT

flow

155 cfs

Observed Sep 15, 2025 at 7:00 PM CDT

flow

167 cfs

Observed Sep 14, 2025 at 7:00 PM CDT

flow

145 cfs

Observed Sep 13, 2025 at 7:00 PM CDT

flow

171 cfs

Observed Sep 11, 2025 at 7:00 PM CDT

flow

159 cfs

Observed Sep 10, 2025 at 7:00 PM CDT

flow

180 cfs

Observed Sep 9, 2025 at 7:00 PM CDT

flow

169 cfs

Observed Sep 8, 2025 at 7:00 PM CDT

flow

181 cfs

Observed Sep 6, 2025 at 7:00 PM CDT

flow

192 cfs

Observed Sep 5, 2025 at 7:00 PM CDT

flow

193 cfs

Observed Sep 4, 2025 at 7:00 PM CDT

flow

208 cfs

Observed Sep 3, 2025 at 7:00 PM CDT

flow

221 cfs

Observed Sep 1, 2025 at 7:00 PM CDT

flow

219 cfs

Observed Aug 31, 2025 at 7:00 PM CDT

flow

230 cfs

Observed Aug 30, 2025 at 7:00 PM CDT

flow

239 cfs

Observed Aug 29, 2025 at 7:00 PM CDT

flow

267 cfs

Observed Aug 27, 2025 at 7:00 PM CDT

flow

258 cfs

Observed Aug 26, 2025 at 7:00 PM CDT

flow

276 cfs

Observed Aug 25, 2025 at 7:00 PM CDT

flow

302 cfs

Observed Aug 24, 2025 at 7:00 PM CDT

flow

371 cfs

Observed Aug 22, 2025 at 7:00 PM CDT

flow

400 cfs

Observed Aug 21, 2025 at 7:00 PM CDT

flow

473 cfs

Observed Aug 20, 2025 at 7:00 PM CDT

flow

561 cfs

Observed Aug 19, 2025 at 7:00 PM CDT

flow

873 cfs

Observed Aug 17, 2025 at 7:00 PM CDT

flow

503 cfs

Observed Aug 16, 2025 at 7:00 PM CDT

flow

264 cfs

Observed Aug 15, 2025 at 7:00 PM CDT

flow

312 cfs

Observed Aug 14, 2025 at 7:00 PM CDT

flow

272 cfs

Observed Aug 12, 2025 at 7:00 PM CDT

flow

309 cfs

Observed Aug 11, 2025 at 7:00 PM CDT

flow

397 cfs

Observed Aug 10, 2025 at 7:00 PM CDT

flow

581 cfs

Observed Aug 9, 2025 at 7:00 PM CDT

flow

149 cfs

Observed Aug 7, 2025 at 7:00 PM CDT

flow

133 cfs

Observed Aug 6, 2025 at 7:00 PM CDT

flow

153 cfs

Observed Aug 5, 2025 at 7:00 PM CDT

flow

135 cfs

Observed Aug 4, 2025 at 7:00 PM CDT

flow

142 cfs

Observed Aug 2, 2025 at 7:00 PM CDT

flow

157 cfs

Observed Aug 1, 2025 at 7:00 PM CDT

flow

165 cfs

Observed Jul 31, 2025 at 7:00 PM CDT

flow

176 cfs

Observed Jul 30, 2025 at 7:00 PM CDT

flow

244 cfs

Observed Jul 28, 2025 at 7:00 PM CDT

flow

198 cfs

Observed Jul 27, 2025 at 7:00 PM CDT

flow

163 cfs

Observed Jul 26, 2025 at 7:00 PM CDT

flow

171 cfs

Observed Jul 25, 2025 at 7:00 PM CDT

flow

245 cfs

Observed Jul 23, 2025 at 7:00 PM CDT

flow

183 cfs

Observed Jul 22, 2025 at 7:00 PM CDT

flow

197 cfs

Observed Jul 21, 2025 at 7:00 PM CDT

flow

204 cfs

Observed Jul 20, 2025 at 7:00 PM CDT

flow

253 cfs

Observed Jul 18, 2025 at 7:00 PM CDT

flow

254 cfs

Observed Jul 17, 2025 at 7:00 PM CDT

flow

235 cfs

Observed Jul 16, 2025 at 7:00 PM CDT

flow

260 cfs

Observed Jul 15, 2025 at 7:00 PM CDT

flow

304 cfs

Observed Jul 13, 2025 at 7:00 PM CDT

flow

337 cfs

Observed Jul 12, 2025 at 7:00 PM CDT

flow

364 cfs

Observed Jul 11, 2025 at 7:00 PM CDT

flow

391 cfs

Observed Jul 10, 2025 at 7:00 PM CDT

flow

440 cfs

Observed Jul 8, 2025 at 7:00 PM CDT

flow

493 cfs

Observed Jul 7, 2025 at 7:00 PM CDT

flow

610 cfs

Observed Jul 6, 2025 at 7:00 PM CDT

flow

708 cfs

Observed Jul 5, 2025 at 7:00 PM CDT

flow

516 cfs

Observed Jul 3, 2025 at 7:00 PM CDT

flow

576 cfs

Observed Jul 2, 2025 at 7:00 PM CDT

flow

674 cfs

Observed Jul 1, 2025 at 7:00 PM CDT

flow

791 cfs

Observed Jun 30, 2025 at 7:00 PM CDT

flow

1,220 cfs

Observed Jun 28, 2025 at 7:00 PM CDT

flow

1,760 cfs

Observed Jun 27, 2025 at 7:00 PM CDT

flow

4,640 cfs

Observed Jun 26, 2025 at 7:00 PM CDT

flow

1,880 cfs

Observed Jun 25, 2025 at 7:00 PM CDT

flow

305 cfs

Observed Jun 23, 2025 at 7:00 PM CDT

flow

416 cfs

Observed Jun 22, 2025 at 7:00 PM CDT

flow

266 cfs

Observed Jun 21, 2025 at 7:00 PM CDT

flow

299 cfs

Observed Jun 20, 2025 at 7:00 PM CDT

Alerts

Alerts unavailable

Alerts are shown only when the API returns a source-backed match.

Official public sources

Readings and thresholds stay tied to USGS, NOAA/NWS, or source-backed records.

Source freshness

Observed and fetched timestamps are shown separately when the API returns them.

Transparent methodology

Unavailable forecasts, alerts, and thresholds are shown as unavailable states.