Alert archive / Montana / Red Flag Warnings in 2023
Red Flag Warning 1, NWS Great Falls, MT
NWS Great Falls, MT issued this red flag warning at Jul 23, 2023, 1:02 PM MDT for 14 counties in Montana. It took effect at Jul 24, 2023, 2:00 PM MDT. It was in force for 31 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jul 23, 2023, 1:02 PM MDT (19:02 UTC)
- In effect from
- Jul 24, 2023, 2:00 PM MDT
- Expired
- Jul 25, 2023, 9:00 PM MDT
- In force
- 31 hr
- Issued by
- NWS Great Falls, MT
Counties Blaine County, MT, Cascade County, MT, Chouteau County, MT, Fergus County, MT, Glacier County, MT, Hill County, MT, Judith Basin County, MT, Lewis and Clark County, MT, Liberty County, MT, Meagher County, MT, Phillips County, MT, Pondera County, MT, Teton County, MT, Toole County, MT
The radar
The Great Falls radar (KTFX), 63 km from the middle of the area, began a volume at 19:03 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 nearest sounding before it
Spokane, WA (KOTX), launched 12:00Z, 7.0 hours before the alert went out and 416 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2703 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 7 m²/s²
- 0-3 km storm-relative helicity
- 38 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The office that day
Everything else NWS Great Falls, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 23, 1:02 PM MDT | Fire Weather Watch | TFX | Blaine, Chouteau, Fergus, Hill, Phillips | 24 hr |
| Jul 23, 3:04 PM MDT | Special Weather Statement | TFX | Beaverhead | 26 min |
| Jul 23, 3:29 PM MDT | Special Weather Statement | TFX | Beaverhead | 61 min |
| Jul 23, 4:23 PM MDT | Special Weather Statement | TFX | Madison | 37 min |
| Jul 23, 4:27 PM MDT | Special Weather Statement | TFX | Beaverhead | 33 min |
| Jul 23, 4:40 PM MDT | Special Weather Statement | TFX | Beaverhead | 35 min |
| Jul 23, 5:02 PM MDT | Special Weather Statement | TFX | Gallatin | 43 min |
| Jul 23, 5:14 PM MDT | Special Weather Statement | TFX | Beaverhead | 46 min |
| Jul 23, 5:29 PM MDT | Special Weather Statement | TFX | Madison | 46 min |
| Jul 23, 5:47 PM MDT | Special Weather Statement | TFX | Silver Bow | 28 min |
Nearby
Red Flag Warnings in Montana, 2023Every red flag warning in 2023
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.