Alert archive / Montana / Red Flag Warnings in 2017

Red Flag Warning 21, NWS Glasgow, MT

October 24, 201712 counties in Montana

NWS Glasgow, MT issued this red flag warning at Oct 24, 2017, 2:49 PM MDT for 12 counties in Montana. It took effect at Oct 25, 2017, 11:00 AM MDT. It was in force for 12 hr. 11 reports 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
Oct 24, 2017, 2:49 PM MDT (20:49 UTC)
In effect from
Oct 25, 2017, 11:00 AM MDT
Expired
Oct 25, 2017, 10:48 PM MDT
In force
12 hr
Issued by
NWS Glasgow, MT

Counties Daniels County, MT, Dawson County, MT, Garfield County, MT, McCone County, MT, Petroleum County, MT, Phillips County, MT, Prairie County, MT, Richland County, MT, Roosevelt County, MT, Sheridan County, MT, Valley County, MT, Wibaux County, MT

The radar

The Glasgow radar (KGGW), 77 km from the middle of the area, began a volume at 20:53 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

TimeReportWhereRemark
Oct 25, 1:44 PM MDTNON-TSTM WND GST 532 Wsw Thoeny, MT
Oct 25, 6:22 PM MDTNON-TSTM WND GST 518 Nw Lindsay, MT
Oct 25, 6:31 PM MDTNON-TSTM WND GST 525 Wnw Landusky, MT
Oct 25, 8:02 PM MDTNON-TSTM WND GST 536 S Comertown, MT
Oct 25, 9:32 PM MDTNON-TSTM WND GST 561 Ese Zortman, MT
Oct 25, 9:41 PM MDTNON-TSTM WND GST 517 E Bainville, MT
Oct 25, 10:06 PM MDTNON-TSTM WND GST 541 N Baylor, MT
Oct 25, 10:11 PM MDTNON-TSTM WND GST 6111 Ene Zortman, MT
Oct 25, 10:25 PM MDTNON-TSTM WND GST 568 Sw Bredette, MT
Oct 25, 10:27 PM MDTNON-TSTM WND GST 541 Nne Glasgow, MTGLASGOW AIRPORT
Oct 25, 10:50 PM MDTNON-TSTM WND GST 522 E Fort Peck, MT

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Glasgow Intl Airport, MT (KGGW), launched 12:00Z, 8.8 hours before the alert went out and 76 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.

Skew-T log-pSkew-T log-p diagram, Glasgow Intl Airport, MT at 12:00Z on 2017-10-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Glasgow Intl Airport, MT at 12:00Z on 2017-10-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 191 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2138 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
191 m²/s²
0-3 km storm-relative helicity
352 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

994 
WWUS85 KGGW 242049
RFWGGW

URGENT - FIRE WEATHER MESSAGE
National Weather Service Glasgow MT
249 PM MDT Tue Oct 24 2017


MTZ122-135>137-251100-
/O.UPG.KGGW.FW.A.0009.171025T1800Z-171026T0600Z/
/O.NEW.KGGW.FW.W.0021.171025T1700Z-171026T0600Z/
Dawson/McCone/Prairie/Richland/Wibaux Counties-The Little Rockies-
The Lower Missouri River Breaks including the Charles M Russell
National Wildlife Refuge-
Southern Petroleum and Southern Garfield Counties-
249 PM MDT Tue Oct 24 2017

...RED FLAG WARNING IN EFFECT FROM 11 AM WEDNESDAY TO MIDNIGHT
MDT WEDNESDAY NIGHT FOR STRONG WIND AND LOW RELATIVE HUMIDITY FOR
FIRE WEATHER ZONES 122...135...136 AND 137...

The National Weather Service in Glasgow has issued a Red Flag
Warning for strong wind and low relative humidity, which is in 
effect from 11 AM Wednesday to midnight MDT Wednesday night. The 
Fire Weather Watch is no longer in effect.

* AFFECTED AREA...Fire Weather Zones 122...135...136 and 137.

* WINDS...West-northwest 20 to 30 mph with gusts up to 40 mph.

* TIMING...Wednesday afternoon through late evening.

* RELATIVE HUMIDITY...As low as 18 percent.

* TEMPERATURES...Around 60.

* IMPACTS...Strong winds and low relatively humidity may lead to 
  erratic fire behavior and new fire starts.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Please advise the appropriate officials or fire crews in these
areas of this Red Flag Warning.

&&

$$

MTZ120-134-251100-
/O.NEW.KGGW.FW.W.0021.171025T1700Z-171026T0600Z/
Fort Peck Reservation and Daniels/Roosevelt/Sheridan Counties-
Northern Valley and Northern Phillips Counties-
249 PM MDT Tue Oct 24 2017

...RED FLAG WARNING IN EFFECT FROM 11 AM WEDNESDAY TO MIDNIGHT
MDT WEDNESDAY NIGHT FOR STRONG WIND AND LOW RELATIVE HUMIDITY FOR
FIRE WEATHER ZONES 120 AND 134...

The National Weather Service in Glasgow has issued a Red Flag
Warning for strong wind and low relative humidity, which is in 
effect from 11 AM Wednesday to midnight MDT Wednesday night.

* AFFECTED AREA...Fire Weather Zones 120 and 134.

* WINDS...West-northwest 20 to 30 mph with gusts up to 40 mph.

* TIMING...Wednesday afternoon through late evening.

* RELATIVE HUMIDITY...As low as 25 percent.

* TEMPERATURES...In the mid 50s.

* IMPACTS...Strong winds and low relatively humidity may lead to 
  erratic fire behavior and new fire starts.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Please advise the appropriate officials or fire crews in these
areas of this Red Flag Warning.

&&

$$

http://www.weather.gov/glasgow
3 follow-up statements
431 
WWUS85 KGGW 250915
RFWGGW

URGENT - FIRE WEATHER MESSAGE
National Weather Service Glasgow MT
315 AM MDT Wed Oct 25 2017

MTZ120-122-134>137-252115-
/O.CON.KGGW.FW.W.0021.171025T1700Z-171026T0600Z/
Fort Peck Reservation and Daniels/Roosevelt/Sheridan Counties-
Dawson/McCone/Prairie/Richland/Wibaux Counties-
Northern Valley and Northern Phillips Counties-The Little Rockies-
The Lower Missouri River Breaks including the Charles M Russell
National Wildlife Refuge-
Southern Petroleum and Southern Garfield Counties-
315 AM MDT Wed Oct 25 2017

...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO
MIDNIGHT MDT TONIGHT FOR strong winds and low relative humidity 
FOR FIRE WEATHER ZONES 120...122...134...135...136 AND 137...

* AFFECTED AREA...Fire Weather Zones 120...122...134...135... 
  136 and 137.

* WINDS...West 20 to 30 mph with gusts up to 45 mph.

* TIMING...this afternoon through late evening.

* RELATIVE HUMIDITY...As low as 14 percent.

* TEMPERATURES...65 to 75 this afternoon. 

* IMPACTS...Strong winds and low relatively humidity may lead to 
  erratic fire behavior and new fire starts.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Please advise the appropriate officials or fire crews in these
areas of this Red Flag Warning.

&&

$$

http://www.weather.gov/glasgow
524 
WWUS85 KGGW 252103
RFWGGW

URGENT - FIRE WEATHER MESSAGE
National Weather Service Glasgow MT
303 PM MDT Wed Oct 25 2017

MTZ120-122-134>137-260600-
/O.CON.KGGW.FW.W.0021.000000T0000Z-171026T0600Z/
Fort Peck Reservation and Daniels/Roosevelt/Sheridan Counties-
Dawson/McCone/Prairie/Richland/Wibaux Counties-
Northern Valley and Northern Phillips Counties-The Little Rockies-
The Lower Missouri River Breaks including the Charles M Russell
National Wildlife Refuge-
Southern Petroleum and Southern Garfield Counties-
303 PM MDT Wed Oct 25 2017

...RED FLAG WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT
FOR STRONG WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES
120...122... 134...135...136 AND 137...

* AFFECTED AREA...Fire Weather Zones 120...122...134...135... 
  136 and 137.

* WINDS...Northwest 20 to 30 mph with gusts up to 45 mph.

* TIMING...this afternoon through late evening.

* RELATIVE HUMIDITY...As low as 11 percent.

* TEMPERATURES...In the lower 70s.

* IMPACTS...Strong winds and low relatively humidity may lead to 
  erratic fire behavior and new fire starts.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Please advise the appropriate officials or fire crews in these
areas of this Red Flag Warning.

&&

$$

http://www.weather.gov/glasgow
914 
WWUS85 KGGW 260448
RFWGGW

URGENT - FIRE WEATHER MESSAGE
National Weather Service Glasgow MT
1048 PM MDT Wed Oct 25 2017

MTZ120-122-134>137-260600-
/O.CAN.KGGW.FW.W.0021.000000T0000Z-171026T0600Z/
Fort Peck Reservation and Daniels/Roosevelt/Sheridan Counties-
Dawson/McCone/Prairie/Richland/Wibaux Counties-
Northern Valley and Northern Phillips Counties-The Little Rockies-
The Lower Missouri River Breaks including the Charles M Russell
National Wildlife Refuge-
Southern Petroleum and Southern Garfield Counties-
1048 PM MDT Wed Oct 25 2017

...RED FLAG WARNING IS CANCELLED FOR STRONG WIND AND LOW RELATIVE
HUMIDITY FOR FIRE WEATHER ZONES 120...122...134...135...136 AND 
137...

The National Weather Service in Glasgow has cancelled the Red
Flag Warning.

Relative Humidity has increased across the area reducing the
potential for extreme fire behavior.

$$

http://www.weather.gov/glasgow

The office that day

Everything else NWS Glasgow, MT issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Oct 24, 2:57 AM MDTHigh Wind WatchGGWPhillips24 hr
Oct 24, 3:18 PM MDTLake Wind AdvisoryGGWGarfield, McCone, Petroleum, Phillips, Valley47 hr

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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.