Alert archive / South Dakota / River Flood Warnings in 2019

River Flood Warning 68, NWS Aberdeen, SD

August 2, 2019Grant County, South Dakota

NWS Aberdeen, SD issued this river flood warning at Aug 2, 2019, 7:18 PM CDT for Grant County, South Dakota. It was in force for 18 hr.

The area

The counties it named.

The facts

Issued: Aug 2, 2019, 7:18 PM CDT (00:18 UTC)
Expired: Aug 3, 2019, 1:23 PM CDT
In force: 18 hr
Issued by: NWS Aberdeen, SD
Area: Storm-based polygon
Flood severity: Minor

County Grant County, SD

The radar

The Aberdeen radar (KABR), 132 km from the middle of the area, began a volume at 00:19 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The river

Written for the forecast point Big Sioux River near Florence (FLOS2). The gauge peaked at 8.64 ft at Aug 2, 2019, 10:00 PM CDT.

Action stage: 7 ft
Minor stage: 8 ft
Moderate stage: 8.5 ft
Major stage: 9 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 06479215, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

What forecasters said that day

The local office's own words before this river flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Aberdeen, SD wrote its last area forecast discussion before this river flood warning went out at Aug 2, 6:58 PM CDT, 20 minutes earlier.

Area forecast discussion, Aug 2, 6:58 PM CDT, 20 minutes before

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Hazardous weather outlook, Aug 2, 5:19 AM CDT, 13 hours 59 minutes before

Hazardous Weather Outlook
National Weather Service Aberdeen SD
519 AM CDT Fri Aug 2 2019

MNZ039-046-SDZ003>011-015>023-033>037-045-048-051-031030-
Traverse-Big Stone-Corson-Campbell-McPherson-Brown-Marshall-Roberts-
Walworth-Edmunds-Day-Dewey-Potter-Faulk-Spink-Clark-Codington-Grant-
Hamlin-Deuel-Stanley-Sully-Hughes-Hyde-Hand-Jones-Lyman-Buffalo-
519 AM CDT Fri Aug 2 2019 /419 AM MDT Fri Aug 2 2019/

This Hazardous Weather Outlook is for west central Minnesota,
central South Dakota, north central South Dakota and northeast
South Dakota.

.DAY ONE...Today and tonight.

Scattered thunderstorms will be possible today into this evening.
Lightning and locally heavy rainfall will be the main threats.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Hazardous weather is not expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

SD

In the hours before

Local storm report, Aug 2, 5:53 PM CDT, 1 hour 25 minutes before

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Local storm report, Aug 2, 5:54 PM CDT, 1 hour 24 minutes before

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Local storm report, Aug 2, 5:55 PM CDT, 1 hour 23 minutes before

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE ABERDEEN SD
555 PM CDT FRI AUG 2 2019

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0500 PM     HEAVY RAIN       8 S VAYLAND             44.37N 98.80W
08/02/2019  M8.00 INCH       HAND               SD   PUBLIC

            UPDATES PREVIOUS HEAVY RAIN REPORT FROM 8 S
            VAYLAND. PUBLIC REPORT RELAYED VIA THE EM.

0500 PM     HEAVY RAIN       2 W IONA                43.54N 99.47W
08/02/2019  M7.50 INCH       LYMAN              SD   PUBLIC

            RELAYED VIA SOCIAL MEDIA. FELL IN UNDER 3
            HOURS.

1151 AM     HEAVY RAIN       3 W BURDETTE            44.71N 98.87W
08/02/2019  E6.00 INCH       HAND               SD   PUBLIC

1031 AM     HEAVY RAIN       5 ENE BRISTOL           45.38N 97.66W
08/02/2019  M5.50 INCH       DAY                SD   PUBLIC

            10 HOUR TOTAL. STILL RAINING.

0330 PM     HEAVY RAIN       9 SSE SPINK COLONY      44.64N 98.20W
08/02/2019  M5.40 INCH       SPINK              SD   PUBLIC

            RELAYED VIA SOCIAL MEDIA.

1153 AM     HEAVY RAIN       5 WNW BURDETTE          44.74N 98.90W
08/02/2019  M5.35 INCH       HAND               SD   PUBLIC

            UPDATED RAINFALL TOTAL FOR THIS LOCATION.

0200 PM     HEAVY RAIN       5 WNW SOUTH SHORE       45.14N 97.02W
08/02/2019  M5.10 INCH       CODINGTON          SD   PUBLIC

0307 PM     HEAVY RAIN       8 E SPOTTSWOOD          44.63N 98.34W
08/02/2019  E5.05 INCH       SPINK              SD   PUBLIC

            RELAYED VIA SOCIAL MEDIA.

1044 AM     HEAVY RAIN       5 WNW BURDETTE          44.74N 98.90W
08/02/2019  M5.04 INCH       HAND               SD   PUBLIC

            REPORT AS OF 10:44 AM. STILL RAINING.

0930 AM     HEAVY RAIN       2 NNW BURDETTE          44.74N 98.83W
08/02/2019  M4.60 INCH       HAND               SD   PUBLIC

            REPORT AS OF 9:30 AM, STILL RAINING.

0830 AM     HEAVY RAIN       HECLA                   45.88N 98.15W
08/02/2019  M4.50 INCH       BROWN              SD   EMERGENCY MNGR

            10 HOUR RAINFALL TOTAL.

0150 PM     HEAVY RAIN       OACOMA                  43.80N 99.38W
08/02/2019  M3.25 INCH       LYMAN              SD   PUBLIC

0550 PM     HEAVY RAIN       7 WNW SOUTH SHORE       45.16N 97.06W
08/02/2019  M3.00 INCH       GRANT              SD   CO-OP OBSERVER

0750 AM     HEAVY RAIN       3 WSW ROSLYN            45.47N 97.55W
08/02/2019  M2.80 INCH       DAY                SD   PUBLIC

            RAINFALL SINCE ABOUT 4 AM CDT. HAVE HAD SOME
            WATER IN BASEMENT.

1000 AM     HEAVY RAIN       7 SSE WEBSTER           45.26N 97.45W
08/02/2019  M2.51 INCH       DAY                SD   TRAINED SPOTTER

            STILL RAINING.

1200 PM     HEAVY RAIN       4 E WATERTOWN           44.92N 97.09W
08/02/2019  M2.50 INCH       CODINGTON          SD   PUBLIC

            12 HOUR TOTAL. STILL RAINING.

0700 AM     HEAVY RAIN       1 SW KIDDER             45.88N 97.72W
08/02/2019  M2.49 INCH       MARSHALL           SD   COCORAHS

0700 AM     HEAVY RAIN       4 SE LAKE CITY          45.68N 97.35W
08/02/2019  M2.17 INCH       MARSHALL           SD   COCORAHS

            COCORAHS STATION SD-MR-13 LAKE CITY 4 SE.

0310 PM     HEAVY RAIN       3 E WATERTOWN           44.91N 97.10W
08/02/2019  M2.16 INCH       CODINGTON          SD   BROADCAST MEDIA

            RELAYED VIA SOCIAL MEDIA.

1200 PM     HEAVY RAIN       1 S CHELSEA             45.15N 98.74W
08/02/2019  M2.15 INCH       FAULK              SD   PUBLIC

            STILL RAINING.

0800 AM     HEAVY RAIN       1 WSW WEBSTER           45.33N 97.53W
08/02/2019  M2.10 INCH       DAY                SD   CO-OP OBSERVER

0700 AM     HEAVY RAIN       8 ENE HECLA             45.92N 98.00W
08/02/2019  M2.07 INCH       BROWN              SD   CO-OP OBSERVER

            CO-OP OBSERVER STATION BRTS2 HECLA 5 NE.

1030 AM     HEAVY RAIN       4 E BURDETTE            44.71N 98.73W
08/02/2019  M2.00 INCH       HAND               SD   PUBLIC

            STILL RAINING.

1115 AM     HEAVY RAIN       1 WNW LAKE CITY         45.73N 97.43W
08/02/2019  M1.97 INCH       MARSHALL           SD   TRAINED SPOTTER

            12 HOUR TOTAL. STILL RAINING.

0800 AM     HEAVY RAIN       3 W RAUVILLE            44.98N 97.14W
08/02/2019  M1.78 INCH       CODINGTON          SD   CO-OP OBSERVER

            CO-OP OBSERVER STATION RALS2 RAUVILLE 2 W.

0700 AM     HEAVY RAIN       BRITTON                 45.78N 97.75W
08/02/2019  M1.50 INCH       MARSHALL           SD   CO-OP OBSERVER

            CO-OP OBSERVER STATION BRIS2 BRITTON.

0700 AM     HEAVY RAIN       7 WNW HECLA             45.92N 98.29W
08/02/2019  M1.30 INCH       BROWN              SD   COCORAHS

            COCORAHS STATION SD-BR-4 HECLA 7 WNW.

0700 AM     HEAVY RAIN       COLUMBIA                45.61N 98.31W
08/02/2019  M1.30 INCH       BROWN              SD   EMERGENCY MNGR

1200 PM     HEAVY RAIN       ANDOVER                 45.41N 97.90W
08/02/2019  M1.08 INCH       DAY                SD   CO-OP OBSERVER

0330 PM     HEAVY RAIN       4 S GARDEN CITY         44.90N 97.58W
08/02/2019  M1.04 INCH       CLARK              SD   CO-OP OBSERVER

1220 PM     FLOOD            6 WNW SOUTH SHORE       45.13N 97.04W
08/02/2019                   CODINGTON          SD   PUBLIC

            COUNTY AND TOWNSHIP ROADS HAVE WATER RUNNING
            OVER THEM DUE TO HEAVY RAIN.

1152 AM     FLOOD            3 W BURDETTE            44.71N 98.87W
08/02/2019                   HAND               SD   PUBLIC

            WATER OVER COUNTY AND TOWNSHIP ROADS, 6.0
            INCHES OF RAIN REPORTED.

0732 AM     FLOOD            WEBSTER                 45.34N 97.52W
08/02/2019                   DAY                SD   LAW ENFORCEMENT

            WATER OVER SEVERAL AREA ROADWAYS.

&&

Local storm report, Aug 2, 6:23 PM CDT, 55 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN SD
623 PM CDT FRI AUG 2 2019

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0521 PM     HEAVY RAIN       COLUMBIA                45.61N 98.31W
08/02/2019  M1.70 INCH       BROWN              SD   EMERGENCY MNGR

&&

RL

Local storm report, Aug 2, 6:51 PM CDT, 27 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN SD
651 PM CDT FRI AUG 2 2019

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0600 PM     HEAVY RAIN       ROY LAKE STATE PARK     45.71N 97.44W
08/02/2019  M3.05 INCH       MARSHALL           SD   CO-OP OBSERVER

&&

RL

Local storm report, Aug 2, 6:52 PM CDT, 26 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN SD
652 PM CDT FRI AUG 2 2019

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0651 PM     HEAVY RAIN       SISSETON                45.66N 97.05W
08/02/2019  M1.16 INCH       ROBERTS            SD   ASOS

&&

RL

The office that day

Everything else NWS Aberdeen, SD issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 2, 8:06 PM CDT	River Flood Warning	ABR	Codington	35 hr
Aug 3, 2:29 AM CDT	River Flood Warning	ABR	Codington	29 hr
Aug 3, 12:51 PM CDT	River Flood Warning	ABR	Codington	27 days

Nearby

River Flood Warnings in South Dakota, 2019 Every river flood warning in 2019

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.