Alert archive / South Dakota / Flash Flood Warnings in 2009

Flash Flood Warning 9, NWS Rapid City, SD

June 15, 2009Butte County, Lawrence County, South Dakota

NWS Rapid City, SD issued this flash flood warning at Jun 15, 2009, 2:41 PM MDT for Butte County, Lawrence County, South Dakota. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jun 15, 2009, 2:41 PM MDT (20:41 UTC)
Expired: Jun 15, 2009, 8:30 PM MDT
In force: 6 hr
Issued by: NWS Rapid City, SD
Area: Storm-based polygon
Flood severity: None

Counties Butte County, SD, Lawrence County, SD

The radar

The Rapid City radar (KUDX), 86 km from the middle of the area, began a volume at 20:41 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 warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Rapid City, SD wrote its last area forecast discussion before this flash flood warning went out at Jun 15, 1:07 PM MDT, 1 hour 34 minutes earlier.

Area forecast discussion, Jun 15, 1:07 PM MDT, 1 hour 34 minutes before

AREA FORECAST DISCUSSION FOR WESTERN SD AND NORTHEASTERN WY
NATIONAL WEATHER SERVICE RAPID CITY SD
107 PM MDT MON JUN 15 2009

.DISCUSSION...SHOWERS AND THUNDERSTORMS DEVELOPING ACROSS THE AREA
THIS AFTERNOON AHEAD OF APPROACHING SHORTWAVE. SHEAR APPEARS TO BE
ON THE WEAK SIDE. HOWEVER...GIVEN THE HIGH CAPE VALUES AND
FORCING EXPECT A FEW STORMS TO BECOME SEVERE THIS AFTERNOON AND
EVENING ACROSS NORTHEAST WYOMING AND WESTERN SOUTH DAKOTA WITH
LARGE HAIL AND VERY HEAVY RAIN. WILL KEEP FLOOD WATCH IN PLACE
ACROSS NORTHWEST SOUTH DAKOTA...THE NORTHERN BLACK HILLS...AND
BEAR LODGE MOUNTAINS. EXPECT VERY HEAVY RAIN TO CAUSE SOME
FLOODING THIS AFTERNOON AND EVENING.

TROUGH WILL DIVE INTO THE SOUTHWEST ON TUESDAY WITH SHORTWAVE
MOVING NORTHWEST OF THE CWA. EXPECT SOUTHWEST FLOW TO STAY OVER
THE CWA THROUGH THURSDAY BRINGING A DAILY CHANCE OF SHOWERS AND
THUNDERSTORMS TO THE AREA. SOME OF THE THUNDERSTORMS COULD BE
STRONG TO SEVERE.

EXTENDED...UPPER TROF WILL CROSS THE NRN PLAINS THURSDAY/THURSDAY
NIGHT AND CONTINUE TO BRING A CHANCE OF SHOWERS AND TSTMS TO THE
REGION. UPR RIDGE IS THEN EXPECTED TO BUILD INTO THE NRN ROCKIES AND
EXTEND EWD INTO THE NRN PLAINS FOR FRIDAY INTO THE WEEKEND. THIS
WILL BRING A TRANSITION TO A WARMER AND DRIER PATTERN FOR OUR AREA.

&&

.AVIATION...SHOWERS AND THUNDERSTORMS WILL BE FOUND ACROSS THE
AREA TONIGHT. SOME OF THE STORMS WILL PRODUCE HAIL AND HEAVY RAIN.
MVFR AND IFR CONDITIONS CAN BE EXPECTED IN THE HEAVIER STORMS.

&&

.UNR WATCHES/WARNINGS/ADVISORIES...
SD...FLOOD WATCH THROUGH LATE TONIGHT FOR BUTTE-CENTRAL BLACK HILLS-
     HAAKON-HARDING-NORTHERN BLACK HILLS-NORTHERN FOOT HILLS-
     NORTHERN MEADE CO PLAINS-PENNINGTON CO PLAINS-PERKINS-RAPID
     CITY-SOUTHERN MEADE CO PLAINS-STURGIS/PIEDMONT FOOT HILLS-
     ZIEBACH.

WY...FLOOD WATCH THROUGH LATE TONIGHT FOR NORTHEASTERN CROOK-WYOMING
     BLACK HILLS.

&&

Hazardous weather outlook, Jun 15, 3:56 AM MDT, 10 hours 45 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE RAPID CITY SD
356 AM MDT MON JUN 15 2009

SDZ001-002-012>014-024>032-041>044-046-047-049-072>074-WYZ054>058-
071-161300-
BENNETT-BUTTE-CENTRAL BLACK HILLS-CUSTER CO PLAINS-FALL RIVER-HAAKON-
HARDING-HERMOSA FOOT HILLS-JACKSON-MELLETTE-NORTHEASTERN CROOK-
NORTHERN BLACK HILLS-NORTHERN CAMPBELL-NORTHERN FOOT HILLS-
NORTHERN MEADE CO PLAINS-PENNINGTON CO PLAINS-PERKINS-RAPID CITY-
SHANNON-SOUTHERN BLACK HILLS-SOUTHERN CAMPBELL-SOUTHERN FOOT HILLS-
SOUTHERN MEADE CO PLAINS-STURGIS/PIEDMONT FOOT HILLS-TODD-TRIPP-
WESTERN CROOK-WESTON-WYOMING BLACK HILLS-ZIEBACH-
356 AM MDT (456 AM CDT) MON JUN 15 2009

...FLOOD WATCH IN EFFECT THIS AFTERNOON AND TONIGHT FOR NORTHWEST
   SOUTH DAKOTA...THE NORTHERN BLACK HILLS...AND THE BEARLODGE
   MOUNTAINS...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN SOUTH DAKOTA AND
NORTHEASTERN WYOMING.

.DAY ONE...TODAY AND TONIGHT

AN ACTIVE WEATHER PATTERN WILL BRING ANOTHER CHANCE OF SHOWERS
AND THUNDERSTORMS ACROSS THE AREA TODAY AND TONIGHT. SOME OF THESE
STORMS MAY BE SEVERE WITH LARGE HAIL AND DAMAGING WINDS. THESE
STORMS MAY ALSO CONTAIN LOCALLY HEAVY RAINFALL...WHICH WILL FALL ON
GROUND THAT HAS ALREADY BEEN SATURATED FROM HEAVY RAINS SUNDAY
NIGHT. THIS MAY RESULT IN THE FLOODING OF SOME AREA CREEKS AND
RIVERS.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

THERE IS A CHANCE FOR THUNDERSTORMS FROM TUESDAY THROUGH THURSDAY
AS MULTIPLE UPPER LEVEL DISTURBANCES MOVE THROUGH THE REGION.
WIDESPREAD SEVERE WEATHER IS NOT EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED TODAY.

In the hours before

Special weather statement, Jun 15, 1:06 PM MDT, 1 hour 35 minutes before

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Local storm report, Jun 15, 1:10 PM MDT, 1 hour 31 minutes before

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Special weather statement, Jun 15, 1:55 PM MDT, 46 minutes before

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Local storm report, Jun 15, 2:33 PM MDT, 8 minutes before

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Special weather statement, Jun 15, 2:34 PM MDT, 7 minutes before

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Special weather statement, Jun 15, 2:41 PM MDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 14, 6:15 PM MDT	Severe Thunderstorm Warning	UNR	Custer	47 min
Jun 14, 6:19 PM MDT	Severe Thunderstorm Warning	UNR	Meade, Pennington	56 min
Jun 14, 6:36 PM MDT	Severe Thunderstorm Warning	UNR	Lawrence, Meade	54 min
Jun 14, 6:43 PM MDT	Flash Flood Warning	UNR	Meade, Pennington	4 hr
Jun 14, 7:09 PM MDT	Severe Thunderstorm Warning	UNR	Meade, Pennington	66 min
Jun 14, 7:35 PM MDT	Flash Flood Warning	UNR	Pennington	3 hr
Jun 14, 7:59 PM MDT	Severe Thunderstorm Warning	UNR	Pennington	61 min
Jun 14, 8:53 PM MDT	Severe Thunderstorm Warning	UNR	Pennington	67 min
Jun 14, 9:25 PM MDT	Severe Thunderstorm Warning	UNR	Jackson	23 min
Jun 14, 9:40 PM MDT	Areal Flood Advisory	UNR	Butte	20 hr
Jun 14, 10:08 PM MDT	Severe Thunderstorm Warning	UNR	Pennington	23 min
Jun 14, 10:51 PM MDT	Areal Flood Warning	UNR	Meade, Pennington	12 hr
Jun 15, 3:48 AM MDT	Flood Watch	UNR	Butte, Custer, Haakon, Harding, Lawrence, Meade and 3 more	24 hr
Jun 15, 2:56 PM MDT	Severe Thunderstorm Warning	UNR	Butte, Lawrence, Meade	64 min
Jun 15, 3:14 PM MDT	Areal Flood Advisory	UNR	Meade	6 hr
Jun 15, 3:27 PM MDT	Severe Thunderstorm Warning	UNR	Lawrence, Meade	63 min
Jun 15, 4:02 PM MDT	Areal Flood Advisory	UNR	Perkins	6 hr
Jun 15, 4:03 PM MDT	Severe Thunderstorm Warning	UNR	Butte, Meade	57 min
Jun 14, 6:11 PM MDT	Severe Thunderstorm Warning	UNR	Crook	49 min
Jun 15, 10:56 AM MDT	Severe Thunderstorm Warning	UNR	Campbell	64 min
Jun 15, 12:55 PM MDT	Severe Thunderstorm Warning	UNR	Weston	65 min
Jun 15, 2:49 PM MDT	Severe Thunderstorm Warning	UNR	Campbell	56 min
Jun 15, 2:56 PM MDT	Areal Flood Advisory	UNR	Campbell	6 hr

Nearby

Flash Flood Warnings in South Dakota, 2009 Every flash flood warning in 2009

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.