Alert archive / Montana / River Flood Watches in 2008

River Flood Watch 9, NWS Missoula, MT

May 17, 2008Ravalli County, Montana

NWS Missoula, MT issued this river flood watch at May 17, 2008, 2:46 PM MDT for Ravalli County, Montana. It was in force for 23 hr.

The area

The counties it named.

The facts

Issued
May 17, 2008, 2:46 PM MDT (20:46 UTC)
Expired
May 18, 2008, 1:50 PM MDT
In force
23 hr
Issued by
NWS Missoula, MT
Flood severity
None

County Ravalli County, MT

The radar

The Missoula radar (KMSX), 107 km from the middle of the area, began a volume at 20:47 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 river flood watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Missoula, MT wrote its last area forecast discussion before this river flood watch went out at May 17, 2:08 PM MDT, 38 minutes earlier.

Area forecast discussion, May 17, 2:08 PM MDT, 38 minutes before
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Hazardous weather outlook, May 17, 12:33 AM MDT, 14 hours 13 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MISSOULA MT
1233 AM MDT SAT MAY 17 2008

MTZ004>006-043-172200-
LOWER CLARK FORK REGION-MISSOULA/BITTERROOT VALLEYS-
BITTERROOT/SAPPHIRE MOUNTAINS-POTOMAC/SEELEY LAKE REGION-
1233 AM MDT SAT MAY 17 2008

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WEST CENTRAL
MONTANA.

.DAY ONE...THIS TODAY AND TONIGHT

INCREASED SNOW MELT FROM WARM TEMPERATURES RESULTING FROM A
BUILDING RIDGE OF HIGH PRESSURE WILL LEAD TO RISES IN SMALL
STREAMS AND SOME MAIN STEM RIVERS ACROSS WESTERN MONTANA.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

THE SPRINGTIME HEAT WAVE WILL CONTINUE TO IMPACT THE AREA THROUGH
SUNDAY WITH TEMPERATURES AT THE LOWER ELEVATIONS WILL RISING INTO
THE UPPER 80S TO LOWER 90S. WITH SNOW PACK LEVELS IN THE HIGHER
ELEVATIONS STILL ABOVE NORMAL...THE MAIN CONCERN WILL BE THE FAST
MELTING THAT WILL OCCUR THROUGH EARLY NEXT WEEK. SMALL STREAMS AND
MAIN STEM RIVERS IN THESE AREAS ARE EXPECTED TO CONTINUE RISING TO
NEAR OR ABOVE FLOOD LEVELS IN SOME LOCATIONS BY MONDAY.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

The office that day

Everything else NWS Missoula, MT issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 17, 12:53 AM MDTRiver Flood WarningMSOLincoln4 days
May 17, 12:53 AM MDTRiver Flood WarningMSOLincoln5 days
May 17, 5:09 AM MDTRiver Flood WatchMSOFlathead10 hr
May 17, 1:56 PM MDTRiver Flood WarningMSOFlathead4 days
May 17, 1:56 PM MDTRiver Flood WarningMSOFlathead5 days
May 17, 2:46 PM MDTRiver Flood WatchMSORavalli24 hr
May 17, 4:55 PM MDTRiver Flood WatchMSOMineral22 hr
May 17, 4:55 PM MDTRiver Flood WatchMSOSanders24 hr
May 17, 1:56 PM MDTRiver Flood WarningMSOClearwater4 days

Nearby

River Flood Watches in Montana, 2008Every river 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.