Alert archive / Montana / 1999
Weather alerts in Montana, July 1999
120 weather alerts in July 1999, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered any part of the state, so the counties below add up to more than the state.
Weather alerts by county
Each county as a circle sized by its count in July 1999. Tap one for its archive.
- Alerts
- 120
- Warnings
- 111
- Watches
- 9
- Advisories
- 0
- Busiest day
- July 22, 199924 alerts
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 |
|---|---|---|---|---|
| Jul 1, 10:44 PM MDT | Severe Thunderstorm Warning | BYZ | Powder River | 36 min |
| Jul 1, 11:07 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 43 min |
| Jul 2, 10:20 PM MDT | Tornado Warning | BYZ | Treasure | 30 min |
| Jul 3, 12:11 AM MDT | Tornado Warning | BYZ | Treasure | 34 min |
| Jul 3, 12:52 AM MDT | Severe Thunderstorm Warning | BYZ | Treasure | 33 min |
| Jul 3, 1:15 AM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 50 min |
| Jul 3, 1:48 AM MDT | Severe Thunderstorm Warning | BYZ | Custer | 57 min |
| Jul 3, 2:26 AM MDT | Severe Thunderstorm Warning | BYZ | Fallon | 59 min |
| Jul 3, 11:59 PM MDT | Severe Thunderstorm Warning | GGW | Wibaux | 61 min |
| Jul 4, 1:11 AM MDT | Severe Thunderstorm Warning | BYZ | Fallon | 34 min |
| Jul 4, 9:40 PM MDT | Severe Thunderstorm Warning | BYZ | Fallon | 65 min |
| Jul 4, 10:17 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 63 min |
| Jul 7, 4:44 PM MDT | Severe Thunderstorm Warning | BYZ | Custer | 66 min |
| Jul 7, 5:13 PM MDT | Severe Thunderstorm Warning | BYZ | Powder River | 62 min |
| Jul 7, 5:29 PM MDT | Severe Thunderstorm Warning | GGW | Phillips | 56 min |
| Jul 7, 5:45 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 65 min |
| Jul 7, 6:15 PM MDT | Tornado Watch | SPC | Big Horn, Carter, Custer, Daniels, Dawson, Fallon and 12 more | 6 hr |
| Jul 7, 6:24 PM MDT | Severe Thunderstorm Warning | GGW | Phillips, Valley | 61 min |
| Jul 7, 6:37 PM MDT | Severe Thunderstorm Warning | BYZ | Powder River | 33 min |
| Jul 7, 6:47 PM MDT | Severe Thunderstorm Warning | TFX | Hill | 28 min |
| Jul 7, 6:57 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 48 min |
| Jul 7, 7:23 PM MDT | Severe Thunderstorm Warning | GGW | Valley | 57 min |
| Jul 7, 7:41 PM MDT | Severe Thunderstorm Warning | GGW | Garfield, McCone | 64 min |
| Jul 7, 8:46 PM MDT | Severe Thunderstorm Warning | GGW | McCone | 49 min |
| Jul 7, 9:26 PM MDT | Severe Thunderstorm Warning | GGW | Dawson | 64 min |
| Jul 7, 10:29 PM MDT | Severe Thunderstorm Warning | GGW | Richland | 56 min |
| Jul 12, 5:29 PM MDT | Severe Thunderstorm Warning | GGW | Daniels, Valley | 66 min |
| Jul 12, 6:07 PM MDT | Severe Thunderstorm Warning | GGW | Richland, Roosevelt | 63 min |
| Jul 12, 6:24 PM MDT | Tornado Warning | GGW | Daniels | 36 min |
| Jul 12, 6:48 PM MDT | Severe Thunderstorm Warning | GGW | Roosevelt | 62 min |
| Jul 12, 7:09 PM MDT | Severe Thunderstorm Warning | GGW | Richland | 66 min |
| Jul 12, 7:47 PM MDT | Severe Thunderstorm Warning | GGW | Roosevelt | 63 min |
| Jul 12, 8:05 PM MDT | Severe Thunderstorm Warning | GGW | Richland | 65 min |
| Jul 13, 2:31 PM MDT | Severe Thunderstorm Warning | GGW | Daniels | 79 min |
| Jul 13, 3:00 PM MDT | Severe Thunderstorm Watch | SPC | Daniels, Richland, Roosevelt, Sheridan | 6 hr |
| Jul 14, 4:41 PM MDT | Severe Thunderstorm Warning | TFX | Chouteau, Hill | 49 min |
| Jul 14, 6:15 PM MDT | Severe Thunderstorm Watch | SPC | Carter, Custer, Dawson, Fallon, Garfield, McCone and 5 more | 6 hr |
| Jul 14, 6:23 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 62 min |
| Jul 14, 6:49 PM MDT | Flash Flood Warning | BYZ | Rosebud | 2 hr |
| Jul 14, 7:25 PM MDT | Severe Thunderstorm Warning | BYZ | Custer, Rosebud | 60 min |
| Jul 15, 4:27 PM MDT | Severe Thunderstorm Warning | BYZ | Carbon, Stillwater | 48 min |
| Jul 15, 4:57 PM MDT | Tornado Warning | BYZ | Carbon | 33 min |
| Jul 15, 5:20 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn, Carbon | 60 min |
| Jul 17, 5:08 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn, Treasure | 62 min |
| Jul 17, 5:35 PM MDT | Severe Thunderstorm Warning | MSO | Missoula | 25 min |
| Jul 17, 7:23 PM MDT | Severe Thunderstorm Warning | GGW | Garfield, Valley | 62 min |
| Jul 17, 7:57 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 33 min |
| Jul 18, 5:43 PM MDT | Severe Thunderstorm Warning | GGW | Garfield | 62 min |
| Jul 18, 6:12 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 33 min |
| Jul 18, 6:56 PM MDT | Severe Thunderstorm Warning | GGW | McCone | 64 min |
| Jul 18, 7:46 PM MDT | Flash Flood Warning | GGW | McCone | 3 hr |
| Jul 18, 8:02 PM MDT | Severe Thunderstorm Warning | GGW | McCone | 63 min |
| Jul 19, 5:40 AM MDT | Severe Thunderstorm Warning | GGW | Dawson, Wibaux | 65 min |
| Jul 19, 2:46 PM MDT | Severe Thunderstorm Warning | GGW | Dawson | 64 min |
| Jul 19, 3:13 PM MDT | Severe Thunderstorm Warning | BYZ | Powder River | 47 min |
| Jul 19, 3:30 PM MDT | Severe Thunderstorm Watch | SPC | Big Horn, Carter, Custer, Daniels, Dawson, Fallon and 9 more | 6 hr |
| Jul 19, 3:46 PM MDT | Severe Thunderstorm Warning | GGW | Dawson | 64 min |
| Jul 19, 4:48 PM MDT | Severe Thunderstorm Warning | GGW | Dawson | 62 min |
| Jul 19, 5:39 PM MDT | Severe Thunderstorm Warning | BYZ | Powder River | 61 min |
| Jul 19, 5:44 PM MDT | Severe Thunderstorm Warning | TFX | Fergus | 31 min |
| Jul 19, 5:51 PM MDT | Severe Thunderstorm Warning | GGW | Dawson | 64 min |
| Jul 19, 6:51 PM MDT | Severe Thunderstorm Warning | TFX | Fergus | 29 min |
| Jul 19, 7:20 PM MDT | Severe Thunderstorm Warning | TFX | Fergus | 30 min |
| Jul 19, 9:05 PM MDT | Severe Thunderstorm Warning | GGW | Roosevelt, Sheridan | 65 min |
| Jul 20, 12:17 AM MDT | Severe Thunderstorm Warning | BYZ | Rosebud, Treasure | 63 min |
| Jul 20, 1:40 PM MDT | Severe Thunderstorm Warning | TFX | Fergus | 35 min |
| Jul 20, 2:15 PM MDT | Severe Thunderstorm Watch | SPC | Big Horn, Blaine, Carbon, Custer, Daniels, Garfield and 10 more | 7 hr |
| Jul 20, 2:33 PM MDT | Severe Thunderstorm Warning | GGW | Petroleum | 62 min |
| Jul 20, 2:37 PM MDT | Severe Thunderstorm Warning | BYZ | Stillwater, Yellowstone | 63 min |
| Jul 20, 3:15 PM MDT | Severe Thunderstorm Warning | BYZ | Yellowstone | 60 min |
| Jul 20, 3:15 PM MDT | Severe Thunderstorm Warning | GGW | Phillips | 65 min |
| Jul 20, 3:20 PM MDT | Severe Thunderstorm Warning | BYZ | Musselshell | 60 min |
| Jul 20, 3:28 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 62 min |
| Jul 20, 4:14 PM MDT | Severe Thunderstorm Warning | GGW | Valley | 66 min |
| Jul 20, 5:27 PM MDT | Severe Thunderstorm Warning | GGW | Garfield, McCone | 63 min |
| Jul 20, 6:48 PM MDT | Severe Thunderstorm Warning | BYZ | Custer | 62 min |
| Jul 20, 7:42 PM MDT | Severe Thunderstorm Warning | BYZ | Powder River | 63 min |
| Jul 20, 9:03 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 62 min |
| Jul 21, 2:58 PM MDT | Severe Thunderstorm Warning | MSO | Ravalli | 62 min |
| Jul 21, 3:15 PM MDT | Severe Thunderstorm Watch | SPC | Broadwater, Cascade, Chouteau, Fergus, Golden Valley, Jefferson and 6 more | 6 hr |
| Jul 21, 3:21 PM MDT | Severe Thunderstorm Warning | MSO | Powell | 54 min |
| Jul 21, 4:11 PM MDT | Severe Thunderstorm Warning | TFX | Lewis and Clark | 34 min |
| Jul 21, 4:25 PM MDT | Severe Thunderstorm Warning | BYZ | Custer, Powder River | 45 min |
| Jul 21, 4:45 PM MDT | Severe Thunderstorm Watch | SPC | Big Horn, Carter, Custer, Daniels, Dawson, Fallon and 11 more | 6 hr |
| Jul 21, 4:45 PM MDT | Severe Thunderstorm Warning | TFX | Chouteau | 50 min |
| Jul 21, 5:06 PM MDT | Severe Thunderstorm Warning | TFX | Cascade | 34 min |
| Jul 21, 5:10 PM MDT | Severe Thunderstorm Warning | GGW | Phillips | 65 min |
| Jul 21, 5:15 PM MDT | Severe Thunderstorm Warning | TFX | Blaine | 35 min |
| Jul 21, 5:36 PM MDT | Severe Thunderstorm Warning | TFX | Chouteau, Liberty | 34 min |
| Jul 21, 5:43 PM MDT | Severe Thunderstorm Warning | TFX | Chouteau | 32 min |
| Jul 21, 6:10 PM MDT | Severe Thunderstorm Warning | GGW | Phillips | 65 min |
| Jul 21, 6:12 PM MDT | Severe Thunderstorm Warning | TFX | Blaine, Chouteau | 33 min |
| Jul 21, 6:29 PM MDT | Severe Thunderstorm Warning | GGW | Prairie | 66 min |
| Jul 21, 6:34 PM MDT | Severe Thunderstorm Warning | TFX | Hill | 31 min |
| Jul 21, 6:48 PM MDT | Severe Thunderstorm Warning | TFX | Blaine | 32 min |
| Jul 21, 6:56 PM MDT | Severe Thunderstorm Warning | GGW | Dawson | 64 min |
| Jul 21, 7:03 PM MDT | Severe Thunderstorm Warning | GGW | Valley | 62 min |
| Jul 21, 7:10 PM MDT | Severe Thunderstorm Warning | BYZ | Powder River | 45 min |
| Jul 21, 7:28 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 57 min |
| Jul 21, 7:34 PM MDT | Tornado Warning | GGW | Valley | 66 min |
| Jul 21, 8:41 PM MDT | Severe Thunderstorm Warning | GGW | Roosevelt, Valley | 64 min |
| Jul 21, 9:01 PM MDT | Severe Thunderstorm Warning | GGW | Phillips, Valley | 64 min |
| Jul 21, 9:35 PM MDT | Severe Thunderstorm Warning | MSO | Flathead | 40 min |
| Jul 21, 9:42 PM MDT | Severe Thunderstorm Warning | GGW | Valley | 33 min |
| Jul 21, 9:43 PM MDT | Severe Thunderstorm Warning | GGW | Roosevelt | 62 min |
| Jul 21, 9:56 PM MDT | Tornado Warning | GGW | Roosevelt | 59 min |
| Jul 21, 10:00 PM MDT | Severe Thunderstorm Watch | SPC | Daniels, McCone, Richland, Roosevelt, Sheridan | 6 hr |
| Jul 21, 10:23 PM MDT | Severe Thunderstorm Warning | GGW | Valley | 62 min |
| Jul 21, 10:40 PM MDT | Severe Thunderstorm Warning | GGW | Sheridan | 65 min |
| Jul 21, 10:56 PM MDT | Tornado Warning | GGW | Roosevelt | 64 min |
| Jul 21, 11:27 PM MDT | Severe Thunderstorm Warning | GGW | Valley | 33 min |
| Jul 21, 11:47 PM MDT | Severe Thunderstorm Warning | GGW | Roosevelt | 63 min |
| Jul 22, 12:03 AM MDT | Severe Thunderstorm Warning | GGW | McCone | 62 min |
| Jul 22, 12:11 AM MDT | Severe Thunderstorm Warning | GGW | Richland, Roosevelt, Sheridan | 64 min |
| Jul 22, 10:29 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 61 min |
| Jul 24, 3:19 PM MDT | Severe Thunderstorm Warning | GGW | Petroleum | 61 min |
| Jul 24, 3:43 PM MDT | Severe Thunderstorm Warning | GGW | Phillips | 62 min |
| Jul 24, 4:30 PM MDT | Tornado Watch | SPC | Daniels, Phillips, Richland, Roosevelt, Sheridan, Valley | 7 hr |
| Jul 24, 5:19 PM MDT | Severe Thunderstorm Warning | GGW | Valley | 66 min |
| Jul 24, 6:25 PM MDT | Severe Thunderstorm Warning | GGW | Valley | 50 min |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Severe storms | |
| Severe Thunderstorm Warning | 102 |
| Tornado Warning | 7 |
| Severe Thunderstorm Watch | 7 |
| Tornado Watch | 2 |
| Flooding | |
| Flash Flood Warning | 2 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Valley County18
- Roosevelt County16
- Powder River County13
- McCone County13
- Rosebud County11
- Phillips County11
- Dawson County11
- Richland County11
- Carter County10
- Treasure County10
- Custer County10
- Daniels County10
- Big Horn County9
- Sheridan County9
- Garfield County8
- Fallon County7
- Wibaux County6
- Prairie County6
- Chouteau County6
- Fergus County5
- Carbon County4
- Blaine County4
- Petroleum County4
- Hill County3
- Musselshell County3
- Yellowstone County3
- Stillwater County2
- Cascade County2
- Missoula County1
- Ravalli County1
- Broadwater County1
- Golden Valley County1
- Jefferson County1
- Judith Basin County1
- Meagher County1
- Wheatland County1
- Powell County1
- Lewis and Clark County1
- Liberty County1
- Flathead County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive19982000
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.