Alert archive / Montana / Severe Thunderstorm Warnings / 1998
Severe Thunderstorm Warnings in Montana, August 1998
96 severe thunderstorm warnings in August 1998. 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 severe thunderstorm warnings reaches back to 1986.
Severe Thunderstorm Warnings by county
Each county as a circle sized by its count in August 1998. Tap one for its archive.
- Severe Thunderstorm Warnings
- 96
- Busiest day
- August 7, 199818 severe thunderstorm warnings
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 31, 6:00 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn, Rosebud | 65 min |
| Jul 31, 6:25 PM MDT | Severe Thunderstorm Warning | MSO | Missoula | 60 min |
| Jul 31, 7:05 PM MDT | Severe Thunderstorm Warning | BYZ | Powder River, Rosebud | 60 min |
| Jul 31, 8:00 PM MDT | Severe Thunderstorm Warning | BYZ | Custer, Powder River | 60 min |
| Aug 1, 2:33 PM MDT | Severe Thunderstorm Warning | GGW | Phillips | 47 min |
| Aug 1, 5:18 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 62 min |
| Aug 1, 5:45 PM MDT | Severe Thunderstorm Warning | GGW | Valley | 60 min |
| Aug 1, 6:14 PM MDT | Severe Thunderstorm Warning | GGW | Roosevelt | 61 min |
| Aug 1, 6:14 PM MDT | Severe Thunderstorm Warning | TFX | Blaine | 31 min |
| Aug 1, 6:35 PM MDT | Severe Thunderstorm Warning | GGW | Richland | 65 min |
| Aug 1, 7:41 PM MDT | Severe Thunderstorm Warning | GGW | Daniels | 64 min |
| Aug 1, 7:57 PM MDT | Severe Thunderstorm Warning | GGW | Sheridan | 63 min |
| Aug 7, 12:15 AM MDT | Severe Thunderstorm Warning | MSO | Missoula, Ravalli | 60 min |
| Aug 7, 2:33 PM MDT | Severe Thunderstorm Warning | MSO | Deer Lodge | 47 min |
| Aug 7, 2:42 PM MDT | Severe Thunderstorm Warning | BYZ | Golden Valley | 63 min |
| Aug 7, 3:29 PM MDT | Severe Thunderstorm Warning | BYZ | Musselshell | 61 min |
| Aug 7, 3:43 PM MDT | Severe Thunderstorm Warning | MSO | Powell | 47 min |
| Aug 7, 3:54 PM MDT | Severe Thunderstorm Warning | TFX | Broadwater, Jefferson, Lewis and Clark | 46 min |
| Aug 7, 4:10 PM MDT | Severe Thunderstorm Warning | TFX | Cascade, Teton | 35 min |
| Aug 7, 4:19 PM MDT | Severe Thunderstorm Warning | TFX | Pondera | 51 min |
| Aug 7, 4:31 PM MDT | Severe Thunderstorm Warning | MSO | Powell | 34 min |
| Aug 7, 4:33 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud, Treasure, Yellowstone | 62 min |
| Aug 7, 4:45 PM MDT | Severe Thunderstorm Warning | TFX | Cascade, Chouteau, Teton | 45 min |
| Aug 7, 4:51 PM MDT | Severe Thunderstorm Warning | TFX | Lewis and Clark | 49 min |
| Aug 7, 4:57 PM MDT | Severe Thunderstorm Warning | TFX | Pondera, Toole | 48 min |
| Aug 7, 5:19 PM MDT | Severe Thunderstorm Warning | TFX | Liberty, Toole | 36 min |
| Aug 7, 5:25 PM MDT | Severe Thunderstorm Warning | TFX | Chouteau | 50 min |
| Aug 7, 5:39 PM MDT | Severe Thunderstorm Warning | TFX | Broadwater, Meagher | 51 min |
| Aug 7, 5:39 PM MDT | Severe Thunderstorm Warning | TFX | Jefferson | 51 min |
| Aug 7, 5:48 PM MDT | Severe Thunderstorm Warning | TFX | Liberty | 42 min |
| Aug 9, 5:06 PM MDT | Severe Thunderstorm Warning | BYZ | Yellowstone | 59 min |
| Aug 10, 1:30 PM MDT | Severe Thunderstorm Warning | GGW | McCone | 65 min |
| Aug 10, 1:42 PM MDT | Severe Thunderstorm Warning | BYZ | Powder River | 63 min |
| Aug 10, 2:02 PM MDT | Severe Thunderstorm Warning | GGW | Richland | 63 min |
| Aug 10, 2:07 PM MDT | Severe Thunderstorm Warning | GGW | Roosevelt | 63 min |
| Aug 10, 3:04 PM MDT | Severe Thunderstorm Warning | BYZ | Custer | 61 min |
| Aug 10, 3:07 PM MDT | Severe Thunderstorm Warning | GGW | Dawson, Richland | 63 min |
| Aug 10, 3:11 PM MDT | Severe Thunderstorm Warning | GGW | Roosevelt | 64 min |
| Aug 10, 3:43 PM MDT | Severe Thunderstorm Warning | GGW | Dawson | 62 min |
| Aug 10, 3:46 PM MDT | Severe Thunderstorm Warning | GGW | Daniels | 64 min |
| Aug 10, 5:57 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 63 min |
| Aug 13, 6:40 PM MDT | Severe Thunderstorm Warning | GGW | McCone | 60 min |
| Aug 14, 3:09 AM MDT | Severe Thunderstorm Warning | GGW | Richland, Roosevelt | 61 min |
| Aug 14, 5:29 PM MDT | Severe Thunderstorm Warning | BYZ | Wheatland | 61 min |
| Aug 14, 7:29 PM MDT | Severe Thunderstorm Warning | BYZ | Musselshell | 66 min |
| Aug 14, 11:44 PM MDT | Severe Thunderstorm Warning | GGW | McCone | 61 min |
| Aug 15, 12:49 AM MDT | Severe Thunderstorm Warning | GGW | McCone | 66 min |
| Aug 15, 3:42 PM MDT | Severe Thunderstorm Warning | BYZ | Stillwater | 33 min |
| Aug 15, 4:12 PM MDT | Severe Thunderstorm Warning | BYZ | Yellowstone | 63 min |
| Aug 16, 5:57 PM MDT | Severe Thunderstorm Warning | TFX | Blaine, Fergus | 68 min |
| Aug 16, 7:00 PM MDT | Severe Thunderstorm Warning | GGW | Phillips | 65 min |
| Aug 16, 8:21 PM MDT | Severe Thunderstorm Warning | TFX | Blaine | 49 min |
| Aug 17, 8:41 PM MDT | Severe Thunderstorm Warning | GGW | Valley | 64 min |
| Aug 17, 10:12 PM MDT | Severe Thunderstorm Warning | GGW | Daniels, Valley | 63 min |
| Aug 20, 3:57 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 63 min |
| Aug 20, 4:16 PM MDT | Severe Thunderstorm Warning | BYZ | Custer, Fallon | 64 min |
| Aug 20, 5:32 PM MDT | Severe Thunderstorm Warning | MSO | Mineral | 63 min |
| Aug 20, 6:08 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 32 min |
| Aug 20, 6:25 PM MDT | Severe Thunderstorm Warning | MSO | Sanders | 60 min |
| Aug 20, 7:14 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 66 min |
| Aug 20, 8:21 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 64 min |
| Aug 20, 8:48 PM MDT | Severe Thunderstorm Warning | BYZ | Powder River | 62 min |
| Aug 20, 10:19 PM MDT | Severe Thunderstorm Warning | MSO | Sanders | 61 min |
| Aug 21, 4:23 AM MDT | Severe Thunderstorm Warning | TFX | Blaine | 47 min |
| Aug 21, 6:15 PM MDT | Severe Thunderstorm Warning | GGW | Sheridan | 60 min |
| Aug 21, 7:32 PM MDT | Severe Thunderstorm Warning | GGW | Sheridan | 58 min |
| Aug 21, 7:40 PM MDT | Severe Thunderstorm Warning | TFX | Chouteau | 30 min |
| Aug 22, 1:09 AM MDT | Severe Thunderstorm Warning | GGW | McCone, Valley | 61 min |
| Aug 22, 1:37 AM MDT | Severe Thunderstorm Warning | MSO | Lake, Missoula | 58 min |
| Aug 22, 3:33 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 62 min |
| Aug 22, 4:03 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 62 min |
| Aug 22, 4:35 PM MDT | Severe Thunderstorm Warning | GGW | Dawson, Wibaux | 65 min |
| Aug 22, 5:05 PM MDT | Severe Thunderstorm Warning | BYZ | Powder River, Rosebud | 60 min |
| Aug 22, 5:11 PM MDT | Severe Thunderstorm Warning | BYZ | Treasure | 64 min |
| Aug 22, 5:39 PM MDT | Severe Thunderstorm Warning | BYZ | Powder River | 46 min |
| Aug 22, 6:01 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 64 min |
| Aug 22, 6:39 PM MDT | Severe Thunderstorm Warning | BYZ | Fallon | 61 min |
| Aug 22, 6:46 PM MDT | Severe Thunderstorm Warning | BYZ | Custer | 64 min |
| Aug 22, 6:58 PM MDT | Severe Thunderstorm Warning | GGW | Prairie | 62 min |
| Aug 22, 7:07 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 33 min |
| Aug 23, 4:17 PM MDT | Severe Thunderstorm Warning | TFX | Cascade | 58 min |
| Aug 23, 5:01 PM MDT | Severe Thunderstorm Warning | TFX | Cascade | 59 min |
| Aug 23, 5:08 PM MDT | Severe Thunderstorm Warning | TFX | Chouteau, Fergus, Judith Basin | 62 min |
| Aug 23, 8:19 PM MDT | Severe Thunderstorm Warning | BYZ | Musselshell, Yellowstone | 61 min |
| Aug 23, 9:01 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud, Treasure | 64 min |
| Aug 23, 9:21 PM MDT | Severe Thunderstorm Warning | BYZ | Musselshell, Yellowstone | 64 min |
| Aug 23, 10:20 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 65 min |
| Aug 23, 10:30 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn, Yellowstone | 60 min |
| Aug 23, 10:56 PM MDT | Severe Thunderstorm Warning | BYZ | Treasure | 64 min |
| Aug 23, 11:05 PM MDT | Severe Thunderstorm Warning | BYZ | Custer | 60 min |
| Aug 23, 11:55 PM MDT | Severe Thunderstorm Warning | BYZ | Fallon | 65 min |
| Aug 24, 12:07 AM MDT | Severe Thunderstorm Warning | BYZ | Carter, Custer | 63 min |
| Aug 26, 4:44 PM MDT | Severe Thunderstorm Warning | GGW | Dawson | 61 min |
| Aug 26, 6:58 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 62 min |
| Aug 26, 7:01 PM MDT | Severe Thunderstorm Warning | GGW | Richland | 64 min |
| Aug 26, 8:05 PM MDT | Severe Thunderstorm Warning | GGW | Richland | 50 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Rosebud County7
- Carter County7
- Big Horn County6
- Powder River County6
- Custer County6
- Richland County6
- Yellowstone County6
- McCone County5
- Valley County4
- Roosevelt County4
- Blaine County4
- Musselshell County4
- Cascade County4
- Treasure County4
- Chouteau County4
- Dawson County4
- Missoula County3
- Daniels County3
- Sheridan County3
- Fallon County3
- Phillips County2
- Powell County2
- Broadwater County2
- Jefferson County2
- Lewis and Clark County2
- Teton County2
- Pondera County2
- Toole County2
- Liberty County2
- Fergus County2
- Sanders County2
- Ravalli County1
- Deer Lodge County1
- Golden Valley County1
- Meagher County1
- Wheatland County1
- Stillwater County1
- Mineral County1
- Lake County1
- Wibaux County1
2 more counties
Nearby
Alerts in force nowTornadoes on recordThe radar archive19971999
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.