Alert archive / South Dakota / Flash Flood Watches in 2008

Flash Flood Watch 2, NWS Aberdeen, SD

June 11, 20088 counties in South Dakota; Big Stone County, Traverse County, Minnesota

NWS Aberdeen, SD issued this flash flood watch at Jun 11, 2008, 1:11 PM CDT for 8 counties in South Dakota; Big Stone County, Traverse County, Minnesota. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued: Jun 11, 2008, 1:11 PM CDT (18:11 UTC)
Expired: Jun 11, 2008, 8:55 PM CDT
In force: 8 hr
Issued by: NWS Aberdeen, SD
Flood severity: None

Counties Big Stone County, MN, Traverse County, MN, Clark County, SD, Codington County, SD, Day County, SD, Deuel County, SD, Grant County, SD, Hamlin County, SD, Marshall County, SD, Roberts County, SD

The radar

The Aberdeen radar (KABR), 109 km from the middle of the area, began a volume at 18:13 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.

What forecasters said that day

The local office's own words before this flash flood watch 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 flash flood watch went out at Jun 11, 10:23 AM CDT, 2 hours 48 minutes earlier.

Area forecast discussion, Jun 11, 10:23 AM CDT, 2 hours 48 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE ABERDEEN SD
1023 AM CDT WED JUN 11 2008

.UPDATE...
UPDATED THE FORECAST THIS MORNING...MAINLY TO REMOVE THE MENTION
OF THE FLOOD WATCH. AREA OF LOW PRESSURE OVER SOUTH CENTRAL SOUTH
DAKOTA WILL MOVE ENE TODAY. SPC HAS MARSHALL...DAY...CLARK AND
POINTS EAST UNDER A SLIGHT RISK FOR SEVERE WEATHER. EXPECT THE
CURRENT SHOWERS AND THUNDERSTORMS TO PUSH EAST INTO MINNESOTA WITH
SOME REDEVELOP LATER THIS AFTERNOON. ELSEWHERE...EXPECT SHOWERS
WITH ISOLATED THUNDERSTORMS FOR REST OF THE DAY.

UPDATED AVIATION DISCUSSION BELOW.

&&
.PREV DISCUSSION...
.SHORT TERM...TONIGHT THROUGH THURSDAY

ONGOING SEVERE WEATHER THROUGH THE EARLY MORNING...WITH THE
POSSIBILITY FOR REDEVELOPMENT OF STRONG TO SEVERE STORMS EARLY THIS
AFTERNOON. FIRST...WILL ADDRESS FLOOD RISK AS RADAR ESTIMATED
2-4 FOR PARTS OF CORSON AND CAMPBELL COUNTIES ECLIPSING 1.5
FLASH FLOOD GUIDANCE...HOWEVER NO REPORTS OF FLOODING FROM THAT
AREA. LOW LEVEL JET EXPECTED TO CONTINUE TO SUPPORT THUNDERSTORMS
IN THE AREA WELL INTO THE AM HOURS...THEREFORE WILL CONTINUE
FLOOD WATCH FOR NORTHERN TIER COUNTIES.

ASIDE FROM NORTHERN TIER STORMS...CONVECTION FILLING IN FROM
NORTHERN NE INTO EAST CENTRAL SD. THIS IS IN LINE WITH MOST
GUIDANCE...INDICATING ELEVATED CAPE/LI VALUES SUPPORTIVE OF
CONTINUOUS REDEVELOPMENT THROUGH THE MORNING...AND HODOGRAPHS TO
SUPPORT SEVERE THREAT. SURFACE TROUGH WILL PUSH SEVERE THREAT EAST
INTO THE PM HOURS.

WILL LEAVE OUT MENTION OF POPS AS UPPER TROUGH MOVES OVERHEAD
TONIGHT...HOWEVER WITH COOLER TEMPERATURES ALOFT...COULD SEE
SHOWER/WEAK THUNDERSTORM DEVELOPMENT THURSDAY DURING THE AFTERNOON HOURS.

.LONG TERM...FRIDAY THROUGH TUESDAY
THE EXTENDED PERIOD STARTS OFF WITH BOTH AN UPPER LOW AND SURFACE
LOW OVER SOUTHERN CANADA AND THE FAR NORTHERN PLAINS. A SURFACE
HIGH WILL EXTEND FROM THE CENTRAL ROCKIES EASTWARD ACROSS NEBRASKA
AND KANSAS. THE HIGH DROPS SOUTHWARD DURING THE DAY FRIDAY WITH A
WEAK FRONT TRACKING ACROSS THE NORTHERN PLAINS DURING THE
AFTERNOON AND OVERNIGHT HOURS. BEST CHANCE FOR PRECIPITATION LOOKS
TO BE DURING THE AFTERNOON AS THE UPPER LEVEL ENERGY SLIDES NORTH
OF THE AREA OVERNIGHT. UPPER LEVEL NORTHWEST FLOW SETS UP ON
SATURDAY...WITH WEAK SURFACE HIGH PRESSURE SLIDING ACROSS THE
PLAINS DURING THE DAY...FOLLOWED BY A DECENT FRONTAL BOUNDARY
SATURDAY NIGHT. BEST INSTABILITY DEVELOPS OVER THE EASTERN HALF OF
THE CWA SATURDAY AFTERNOON AND EVENING...SO WILL KEEP A MENTION OF
TRW GOING DURING THAT TIME. A DECENT SHORTWAVE DROPS OVER THE
EASTERN PART OF THE AREA ON SUNDAY...AND WITH THE FRONT STILL IN
THE GENERAL AREA...WILL KEEP A SMALL POP FOR TRW GOING. HIGH
PRESSURE SLIDES OVER THE NORTHERN AND CENTRAL PLAINS SUNDAY
NIGHT...AND REMAINS DOMINANT OVER THE REGION THROUGH THE END OF
THE PERIOD. DRY CONDITIONS EXPECTED SUNDAY NIGHT THROUGH TUESDAY.

H85 TEMPS GENERALLY REMAIN IN THE UPPER SINGLE DIGITS TO THE
TEENS...KEEPING TEMPERATURES RIGHT AROUND NORMAL THROUGH THE
PERIOD.

&&

.AVIATION...
IFR/MVFR CIGS/VSBYS WILL CONTINUE ACROSS MOST OF THE AREA THROUGH TODAY
WITH THE MOST CONCENTRATION OF RAIN/THUNDERSTORMS LIKELY TO BE
OVER THE NORTHEAST PART OF THE AREA...INCLUDING KATY TERMINAL. THE
STORMS SHOULD GRADUALLY PUSH OFF INTO AREAS NORTH AND EAST OF THE
REGION TONIGHT.

&&

.ABR WATCHES/WARNINGS/ADVISORIES...
SD...NONE.
MN...NONE.
&&

UPDATE...SD
SHORT TERM...CONNELLY
LONG TERM...PARKIN
AVIATION...TDK

WEATHER.GOV/ABERDEEN

Hazardous weather outlook, Jun 11, 3:46 AM CDT, 9 hours 25 minutes before

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In the hours before

Local storm report, Jun 11, 8:53 AM CDT, 4 hours 18 minutes before

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Local storm report, Jun 11, 9:44 AM CDT, 3 hours 27 minutes before

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Local storm report, Jun 11, 10:21 AM CDT, 2 hours 50 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN SD
1021 AM CDT WED JUN 11 2008

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

1030 PM     HAIL             15 ESE MOUND CITY       45.64N 99.78W
06/10/2008  E1.00 INCH       CAMPBELL           SD   PUBLIC

            DIME TO QUARTER HAIL. ALSO ESTIMATED 50 TO 60 MPH WINDS.

0115 AM     TSTM WND GST     15 ESE MOUND CITY       45.64N 99.78W
06/11/2008  E60.00 MPH       CAMPBELL           SD   PUBLIC

            ESTIMATED WINDS AT LEAST 60 MPH. COTTONWOOD TREE SNAPPED
            OFF AT GROUND.

&&

JJZ

Local storm report, Jun 11, 11:27 AM CDT, 1 hour 44 minutes before

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Local storm report, Jun 11, 11:46 AM CDT, 1 hour 25 minutes before

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Local storm report, Jun 11, 11:52 AM CDT, 1 hour 19 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 10, 9:24 PM CDT	Severe Thunderstorm Warning	ABR	Corson	36 min
Jun 10, 9:33 PM CDT	Severe Thunderstorm Warning	ABR	McPherson	29 min
Jun 10, 10:17 PM CDT	Severe Thunderstorm Warning	ABR	Campbell, Corson	43 min
Jun 10, 10:19 PM CDT	Severe Thunderstorm Warning	ABR	Campbell, McPherson, Walworth	56 min
Jun 10, 10:31 PM CDT	Areal Flood Advisory	ABR	Campbell, Corson, Dewey	3 hr
Jun 10, 11:02 PM CDT	Severe Thunderstorm Warning	ABR	Campbell, Corson	58 min
Jun 10, 11:29 PM CDT	Severe Thunderstorm Warning	ABR	Campbell, Corson, Walworth	61 min
Jun 11, 12:16 AM CDT	Severe Thunderstorm Warning	ABR	Campbell, Edmunds, McPherson, Walworth	59 min
Jun 11, 12:59 AM CDT	Severe Thunderstorm Warning	ABR	Campbell, Corson, Dewey, McPherson, Walworth	61 min
Jun 11, 1:36 AM CDT	Areal Flood Advisory	ABR	Campbell, Edmunds, McPherson, Walworth	3 hr
Jun 11, 1:39 AM CDT	Severe Thunderstorm Warning	ABR	Edmunds, McPherson	66 min
Jun 11, 2:03 AM CDT	Severe Thunderstorm Warning	ABR	Campbell, Edmunds, McPherson, Walworth	36 min
Jun 11, 2:33 AM CDT	Severe Thunderstorm Warning	ABR	Brown, McPherson	57 min
Jun 11, 2:38 AM CDT	Severe Thunderstorm Warning	ABR	Brown, Edmunds, McPherson	82 min
Jun 11, 2:47 AM CDT	Severe Thunderstorm Warning	ABR	Edmunds, McPherson	28 min
Jun 11, 2:59 AM CDT	Severe Thunderstorm Warning	ABR	Spink	31 min
Jun 11, 3:31 AM CDT	Severe Thunderstorm Warning	ABR	Brown, Day, Marshall, Spink	44 min
Jun 11, 3:35 AM CDT	Severe Thunderstorm Warning	ABR	Edmunds, Faulk, McPherson, Potter	55 min
Jun 11, 4:09 AM CDT	Severe Thunderstorm Warning	ABR	Faulk, Hand, Spink	66 min
Jun 11, 4:15 AM CDT	Severe Thunderstorm Warning	ABR	Day, Marshall	60 min
Jun 11, 4:27 AM CDT	Areal Flood Advisory	ABR	Brown, Edmunds, Faulk, McPherson, Potter	3 hr
Jun 11, 5:07 AM CDT	Severe Thunderstorm Warning	ABR	Day, Marshall, Roberts	53 min
Jun 11, 5:22 AM CDT	Severe Thunderstorm Warning	ABR	Clark, Spink	23 min
Jun 11, 6:03 AM CDT	Severe Thunderstorm Warning	ABR	Marshall, Roberts	27 min
Jun 11, 9:35 AM CDT	Flash Flood Warning	ABR	Grant, Roberts	6 hr
Jun 11, 2:57 PM CDT	Severe Thunderstorm Warning	ABR	Campbell	14 min
Jun 11, 3:36 PM CDT	Areal Flood Warning	ABR	Grant, Roberts	12 hr
Jun 11, 10:55 AM CDT	Flash Flood Warning	ABR	Big Stone	5 hr

Nearby

Flash Flood Watches in South Dakota, 2008 Flash Flood Watches in Minnesota, 2008 Every flash flood watch in 2008

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.