IOLK1: Grand River, Iola 

                                SHEF ID:       IOLK1     NEOSHO RIVER NEAR IOLA
STATION TYPE:  
Regulating: Stage =    15.00, Flow =    18228

               PRECIP     STAGE  RIV-FLOW  AIR-TEMP  BAT-LOAD
                   in        ft       cfs         F      volt
              Ccp-Rev   Ccp-Rev   Ccp-Rev   Ccp-Rev   Ccp-Rev
(America/Chicago)
03/19 00:00      0.00      8.80      3738     14.20     12.46
03/19 01:00      0.00      8.75      3585     13.70     12.44
03/19 02:00      0.00      8.72      3495     13.30     12.43
03/19 03:00      0.00      8.68      3377     11.90     12.40
03/19 04:00      0.00      8.65      3289     11.30     12.38
03/19 05:00      0.00      8.61      3174     10.30     12.37
03/19 06:00      0.00      8.59      3117     10.40     12.34
03/19 07:00      0.00      8.56      3033     10.50     12.33
03/19 08:00      0.00      8.56      3033     10.20     12.31
03/19 09:00      0.00      8.54      2978     13.00     12.45
03/19 10:00      0.00      8.54      2978     15.70     12.94
03/19 11:00      0.00      8.52      2922     19.10     13.07
03/19 12:00      0.00      8.52      2922     21.80     12.94
03/19 13:00      0.00      8.51      2895     23.20     12.73
03/19 14:00      0.00      8.51      2895     24.70     12.76
03/19 15:00      0.00      8.51      2895     25.40     12.83
03/19 16:00      0.00      8.50      2868     27.40     12.76
03/19 17:00      0.00      8.49      2841     27.60     12.73
03/19 18:00      0.00      8.48      2814     27.50     12.71
03/19 19:00      0.00      8.49      2841     25.50     12.65
03/19 20:00      0.00      8.48      2814     22.20     12.60
03/19 21:00      0.00      8.46      2760     18.70     12.57
03/19 22:00      0.00      8.47      2787     16.70     12.53
03/19 23:00      0.00      8.47      2787     15.60     12.49
Data processed at Fri 20Mar2026 04:38 GMT

NOTICE: If you are parsing this page

Please convert to using our Data API. Starting early 2026 we will be migrating to: https://water.usace.army.mil with modern pages rendered in JavaScript. When this migration completes you will no longer be able to scrape this page! CWMSDataAPI (CDA)

Timeseries IDs (TSIDs)

TSIDs used from left to right in the data table 
IOLA.Precip-Inc.Total.1Hour.1Hour.Ccp-Rev
IOLA.Stage.Inst.1Hour.0.Ccp-Rev
IOLA.Flow.Inst.1Hour.0.Ccp-Rev
IOLA.Temp-Air.Inst.1Hour.0.Ccp-Rev
IOLA.Volt-Battery Load.Inst.1Hour.0.Ccp-Rev

All information presented herein is the property of the government of the United States of America and may be revised or deleted at any time without prior notice. Dissemination of this information without the expressed written consent of the Public Affairs Office, Tulsa District U.S. Army Corps of Engineers is strictly prohibited. These data are gathered electronically and, as presented, have NOT undergone any form of quality control. These data are NOT guaranteed to be valid or correct.