Alert archive / Montana / River Flood Watches in 2009
River Flood Watch 2, NWS Missoula, MT
NWS Missoula, MT issued this river flood watch at May 19, 2009, 9:40 AM MDT for Ravalli County, Montana. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- May 19, 2009, 9:40 AM MDT (15:40 UTC)
- Expired
- May 19, 2009, 12:29 PM MDT
- In force
- 3 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 15:39 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 Bitterroot River at Bell Crossing near Victor (VICM8).
- Action stage
- 11 ft
- Minor stage
- 11.5 ft
This gauge today: stage, forecast and historic crests
Stage from the USGS instantaneous record for site 12350250, 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 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 19, 4:23 AM MDT, 5 hours 17 minutes earlier.
Area forecast discussion, May 19, 4:23 AM MDT, 5 hours 17 minutes before
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</html>Hazardous weather outlook, May 18, 2:37 PM MDT, 19 hours 3 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE MISSOULA MT 237 PM MDT MON MAY 18 2009 MTZ002-003-191200- WEST GLACIER REGION-FLATHEAD/MISSION VALLEYS- 237 PM MDT MON MAY 18 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHWEST MONTANA. .DAY ONE...TONIGHT AN APPROACHING COLD FRONT WILL INCREASE INSTABILITY OVER THE AREA TONIGHT WITH THE POSSIBILITY OF THUNDERSTORMS DEVELOPING...WHICH MAY PRODUCE LOCALIZED GUSTY WINDS. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY A STRONG PRESSURE GRADIENT WILL DEVELOP TUESDAY AS THE COLD FRONT PUSHES THROUGH THE AREA. GUSTY SOUTHWEST TO WEST WINDS OF 15 TO 25 MPH ARE EXPECTED WITH LOCALIZED WIND GUSTS UP TO 30 MPH POSSIBLE OVER FLATHEAD LAKE AND OVER HIGHER TERRAIN OF GLACIER NATIONAL PARK. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. IDZ009-MTZ005-006-043-191200- WESTERN LEMHI COUNTY-MISSOULA/BITTERROOT VALLEYS- BITTERROOT/SAPPHIRE MOUNTAINS-POTOMAC/SEELEY LAKE REGION- 237 PM MDT MON MAY 18 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL IDAHO AND WEST CENTRAL MONTANA. .DAY ONE...TONIGHT CLOUDS AND SOUTHERLY WINDS WILL BE INCREASING OVERNIGHT IN ADVANCE OF AN APPROACHING COLD FRONT. A THUNDERSTORM IS POSSIBLE OVER WEST CENTRAL MONTANA DURING THE LATE NIGHT HOURS. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY A STRONG PRESSURE GRADIENT WILL DEVELOP TUESDAY AS THE COLD FRONT PUSHES THROUGH THE AREA. GUSTY SOUTHWEST TO WEST WINDS OF 15 TO 25 MPH WITH LOCALIZED WIND GUSTS OF 30 TO 40 MPH POSSIBLE BY AFTERNOON. THUNDERSTORMS ARE ALSO POSSIBLE...ESPECIALLY OVER THE SOUTHERN BITTERROOT AND SAPPHIRE MOUNTAINS AND WESTERN LEMHI COUNTY. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. IDZ010-MTZ007-191200- EASTERN LEMHI COUNTY-BUTTE/BLACKFOOT REGION- 237 PM MDT MON MAY 18 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL IDAHO AND WEST CENTRAL MONTANA. .DAY ONE...THIS AFTERNOON AND TONIGHT CLOUDS AND SOUTHERLY WINDS WILL BE INCREASING OVERNIGHT AS A COLD FRONT APPROACHES THE AREA. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY THE COMBINATION OF AN UNSTABLE ATMOSPHERE AND A STRONG PRESSURE GRADIENT WILL PRODUCE GUSTY SOUTHWEST TO WEST WINDS OF 15 TO 25 MPH WITH LOCALIZED WIND GUSTS UP TO 40 MPH POSSIBLE. IN ADDITION...AS THE COLD FRONT APPROACHES THE AREA DURING THE AFTERNOON THUNDERSTORMS MAY DEVELOP AND PRODUCE WIND GUSTS UP TO 50 MPH. .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.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 18, 11:32 PM MDT | River Flood Watch | MSO | Ravalli | 13 hr |
| May 19, 4:10 AM MDT | Wind Advisory | MSO | Deer Lodge, Granite, Missoula, Powell, Ravalli, Silver Bow | 16 hr |
| May 19, 12:23 PM MDT | River Flood Warning | MSO | Ravalli | 44 hr |
| May 19, 12:23 PM MDT | River Flood Warning | MSO | Ravalli | 34 hr |
| May 19, 12:54 PM MDT | River Flood Watch | MSO | Missoula | 32 hr |
| May 18, 8:43 PM MDT | Severe Thunderstorm Warning | MSO | Clearwater, Idaho | 22 min |
| May 18, 10:48 PM MDT | Severe Thunderstorm Warning | MSO | Clearwater | 27 min |
| May 19, 9:40 AM MDT | River Flood Watch | MSO | Idaho | 21 hr |
| May 19, 2:47 PM MDT | High Wind Warning | MSO | Lemhi | 6 hr |
Nearby
River Flood Watches in Montana, 2009Every river flood watch 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; the gauge from the NWS water service and the USGS.