Alert archive / Montana / Red Flag Warnings in 2017
Red Flag Warning 1, NWS Missoula, MT
NWS Missoula, MT issued this red flag warning at Jul 15, 2017, 2:00 PM MDT for 11 counties in Montana. It took effect at Jul 16, 2017, 3:00 AM MDT. It was in force for 18 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 15, 2017, 2:00 PM MDT (20:00 UTC)
- In effect from
- Jul 16, 2017, 3:00 AM MDT
- Expired
- Jul 16, 2017, 9:00 PM MDT
- In force
- 18 hr
- Issued by
- NWS Missoula, MT
Counties Flathead County, MT, Glacier County, MT, Granite County, MT, Lake County, MT, Lewis and Clark County, MT, Lincoln County, MT, Mineral County, MT, Missoula County, MT, Powell County, MT, Ravalli County, MT, Sanders County, MT
The radar
The Missoula radar (KMSX), 41 km from the middle of the area, began a volume at 20:01 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, 8.0 hours before the alert went out and 186 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
- 2875 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 44 m²/s²
- 0-3 km storm-relative helicity
- 121 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
252 WWUS85 KMSO 152000 RFWMSO URGENT - FIRE WEATHER MESSAGE National Weather Service Missoula MT 200 PM MDT Sat Jul 15 2017 MTZ104-162000- /O.NEW.KMSO.FW.W.0001.170716T0900Z-170717T0300Z/ Kootenai- 200 PM MDT Sat Jul 15 2017 ...RED FLAG WARNING IN EFFECT FROM 3 AM TO 9 PM MDT SUNDAY... * Affected area: Fire Zone 104 (Kootenai). * Impacts: Hold overs from lightning, and new and existing fires will likely spread on Sunday. * Winds: 15-25 mph, higher on ridges, with and behind the cold front Sunday morning and continuing through the afternoon. * Minimum Humidities: 15-25 percent. && $$ MTZ105>107-162000- /O.NEW.KMSO.FW.W.0001.170716T1200Z-170717T0300Z/ Flathead/Glacier Park-West Lolo-Salish and Kootenai Reservation- 200 PM MDT Sat Jul 15 2017 ...RED FLAG WARNING IN EFFECT FROM 6 AM TO 9 PM MDT SUNDAY... * Affected area: Fire Zone 105 (Flathead/Glacier Park). Fire Zone 106 (West Lolo). Fire Zone 107 (Salish and Kootenai Reservation). * Impacts: Hold overs from lightning, and new and existing fires will likely spread rapidly on Sunday. * Winds: 15-25 mph, higher on ridges, with and behind the cold front Sunday morning and continuing through the afternoon. * Minimum Humidities: 15-25 percent. && $$ MTZ108-109-162000- /O.NEW.KMSO.FW.W.0001.170716T1200Z-170717T0300Z/ East Lolo-Bitterroot- 200 PM MDT Sat Jul 15 2017 ...RED FLAG WARNING IN EFFECT FROM 6 AM TO 9 PM MDT SUNDAY... * Affected area: Fire Zone 108 (East Lolo). Fire Zone 109 (Bitterroot). * Impacts: Hold overs from lightning, and new and existing fires will likely spread rapidly on Sunday. * Winds: 10-20 mph in the morning increasing 15-25 mph with gusts 35 mph, higher on ridges, with and behind the cold front Sunday. * Minimum Humidities: 15-20 percent. && $$
1 follow-up statement
258 WWUS85 KMSO 170301 RFWMSO URGENT - FIRE WEATHER MESSAGE National Weather Service Missoula MT 901 PM MDT Sun Jul 16 2017 MTZ104-170415- /O.EXP.KMSO.FW.W.0001.000000T0000Z-170717T0300Z/ Kootenai- 901 PM MDT Sun Jul 16 2017 ...RED FLAG WARNING WILL EXPIRE AT 9 PM MDT THIS EVENING... Relative humidity is increasing with decreasing winds this evening...so the red flag warning is allowed to expire. && $$ MTZ105>107-170415- /O.EXP.KMSO.FW.W.0001.000000T0000Z-170717T0300Z/ Flathead/Glacier Park-West Lolo-Salish and Kootenai Reservation- 901 PM MDT Sun Jul 16 2017 ...RED FLAG WARNING WILL EXPIRE AT 9 PM MDT THIS EVENING... Relative humidity is increasing with decreasing winds this evening...so the red flag warning is allowed to expire. && $$ MTZ108-109-170415- /O.EXP.KMSO.FW.W.0001.000000T0000Z-170717T0300Z/ East Lolo-Bitterroot- 901 PM MDT Sun Jul 16 2017 ...RED FLAG WARNING WILL EXPIRE AT 9 PM MDT THIS EVENING... Relative humidity is increasing with decreasing winds this evening...so the red flag warning is allowed to expire. && $$
The office that day
Everything else NWS Missoula, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 14, 6:16 PM MDT | Special Weather Statement | MSO | Missoula | 29 min |
| Jul 14, 7:57 PM MDT | Special Weather Statement | MSO | Missoula | 33 min |
| Jul 15, 2:29 PM MDT | Special Weather Statement | MSO | Deer Lodge | 46 min |
| Jul 15, 2:58 PM MDT | Special Weather Statement | MSO | Ravalli | 62 min |
| Jul 15, 3:35 PM MDT | Special Weather Statement | MSO | Ravalli | 40 min |
| Jul 15, 4:03 PM MDT | Special Weather Statement | MSO | Ravalli | 27 min |
| Jul 15, 4:16 PM MDT | Special Weather Statement | MSO | Ravalli | 59 min |
| Jul 15, 4:27 PM MDT | Severe Thunderstorm Warning | MSO | Missoula, Ravalli | 33 min |
| Jul 15, 4:59 PM MDT | Severe Thunderstorm Warning | MSO | Missoula, Ravalli | 46 min |
| Jul 15, 5:13 PM MDT | Special Weather Statement | MSO | Deer Lodge | 47 min |
| Jul 15, 5:41 PM MDT | Areal Flood Advisory | MSO | Deer Lodge | 64 min |
| Jul 15, 5:49 PM MDT | Special Weather Statement | MSO | Missoula | 41 min |
| Jul 15, 5:53 PM MDT | Special Weather Statement | MSO | Powell | 52 min |
Nearby
Red Flag Warnings in Montana, 2017Every red flag warning in 2017
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.