Alert archive / Montana / Flood Watches / 2011
Flood Watches in Montana, May 2011
13 flood watches in May 2011. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of flood watches reaches back to 2005.
Flood Watches by county
Each county as a circle sized by its count in May 2011. Tap one for its archive.
- Flood Watches
- 13
- Busiest day
- May 27, 20113 flood watches
Over time
By day
Days in UTC, the clock the archive keeps.
The alerts
Every alert, in the order issued. Times are local, Mountain Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 9, 8:34 PM MDT | Flood Watch | BYZ | Big Horn, Carter, Custer, Fallon, Musselshell, Powder River and 3 more | 19 hr |
| May 9, 8:39 PM MDT | Flood Watch | GGW | Dawson, Garfield, McCone, Prairie, Richland, Roosevelt and 2 more | 23 hr |
| May 11, 12:18 PM MDT | Flood Watch | MSO | Lincoln | 23 hr |
| May 12, 9:32 PM MDT | Flood Watch | MSO | Lincoln, Missoula, Ravalli, Sanders | 5 days |
| May 17, 9:01 AM MDT | Flood Watch | GGW | Daniels, Garfield, McCone, Prairie, Roosevelt, Valley | 3 hr |
| May 17, 3:35 PM MDT | Flood Watch | BYZ | Big Horn, Carbon, Carter, Custer, Fallon, Golden Valley and 9 more | 5 days |
| May 18, 2:47 PM MDT | Flood Watch | GGW | Daniels, Dawson, Garfield, McCone, Petroleum, Phillips and 6 more | 44 hr |
| May 19, 3:23 AM MDT | Flood Watch | TFX | 20 days | |
| May 23, 9:52 AM MDT | Flood Watch | BYZ | Big Horn, Carbon, Golden Valley, Musselshell, Park, Rosebud and 5 more | 48 hr |
| May 23, 2:37 PM MDT | Flood Watch | MSO | Missoula, Ravalli | 72 hr |
| May 27, 3:13 AM MDT | Flood Watch | MSO | Flathead | 8 hr |
| May 27, 3:24 AM MDT | Flood Watch | GGW | Daniels, Dawson, Garfield, McCone, Petroleum, Phillips and 6 more | 4 days |
| May 27, 3:48 AM MDT | Flood Watch | BYZ | Big Horn, Carbon, Carter, Custer, Fallon, Golden Valley and 9 more | 4 days |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Big Horn County4
- Musselshell County4
- Rosebud County4
- Treasure County4
- Yellowstone County4
- Garfield County4
- McCone County4
- Prairie County4
- Roosevelt County4
- Carter County3
- Custer County3
- Fallon County3
- Powder River County3
- Dawson County3
- Richland County3
- Sheridan County3
- Wibaux County3
- Daniels County3
- Valley County3
- Carbon County3
- Golden Valley County3
- Park County3
- Stillwater County3
- Sweet Grass County3
- Wheatland County3
- Lincoln County2
- Missoula County2
- Ravalli County2
- Petroleum County2
- Phillips County2
- Sanders County1
- Flathead County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20102012
Sources
National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Warning verification from the Mesonet's Cow. Rebuilt daily.