Alert archive / Montana / Severe Thunderstorm Warnings in 1999
Severe Thunderstorm Warning 9, NWS Great Falls, MT
NWS Great Falls, MT issued this severe thunderstorm warning at Jun 18, 1999, 6:57 PM MDT for Meagher County, Montana. It was in force for 33 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jun 18, 1999, 6:57 PM MDT (00:57 UTC)
- Expired
- Jun 18, 1999, 7:30 PM MDT
- In force
- 33 min
- Issued by
- NWS Great Falls, MT
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Meagher County, MT
The radar
The Great Falls radar (KTFX), 103 km from the middle of the area, began a volume at 00:57 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 was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 18, 7:05 PM MDT | Thunderstorm Wind 52 | White Sulphur Spgs, MT |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 18, 5:30 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Great Falls, MT wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 18, 3:00 PM MDT, 3 hours 57 minutes earlier.
Area forecast discussion, Jun 18, 3:00 PM MDT, 3 hours 57 minutes before
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</html>The office that day
Everything else NWS Great Falls, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 18, 7:09 PM MDT | Severe Thunderstorm Warning | TFX | Fergus, Judith Basin | 36 min |
| Jun 18, 8:44 PM MDT | Severe Thunderstorm Warning | TFX | Gallatin | 31 min |
| Jun 19, 3:44 PM MDT | Severe Thunderstorm Warning | TFX | Fergus | 46 min |
| Jun 19, 4:54 PM MDT | Severe Thunderstorm Warning | TFX | Gallatin | 36 min |
Nearby
Severe Thunderstorm Warnings in Montana, 1999Every severe thunderstorm warning in 1999
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; radar from the NEXRAD Level II archive.