Alert archive / Colorado / Red Flag Warnings in 2017
Red Flag Warning 8, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this red flag warning at Mar 4, 2017, 3:26 PM MST for 15 counties in Colorado. It took effect at Mar 5, 2017, 10:00 AM MST. It was in force for 9 hr. 2 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
- Mar 4, 2017, 3:26 PM MST (22:26 UTC)
- In effect from
- Mar 5, 2017, 10:00 AM MST
- Expired
- Mar 5, 2017, 7:00 PM MST
- In force
- 9 hr
- Issued by
- NWS Denver/Boulder, CO
Counties Adams County, CO, Arapahoe County, CO, Boulder County, CO, Broomfield County, CO, Clear Creek County, CO, Denver County, CO, Douglas County, CO, Elbert County, CO, Gilpin County, CO, Jefferson County, CO, Larimer County, CO, Lincoln County, CO, Park County, CO, Washington County, CO, Weld County, CO
The radar
The Denver radar (KFTG), 20 km from the middle of the area, began a volume at 22:23 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 |
|---|---|---|---|
| Mar 5, 1:35 PM MST | NON-TSTM WND GST 57 | 2 N Erie, CO | MESONET STATION 2 N ERIE /D4448/. |
| Mar 5, 5:40 PM MST | NON-TSTM WND GST 67 | 3 E Mountain View, CO | MESONET STATION 3 E MOUNTAIN VIEW /CO015/. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Denver, CO (KDEN), launched 12:00Z, 10.4 hours before the alert went out and 133 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
- 3732 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 2 m²/s²
- 0-3 km storm-relative helicity
- 39 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
564 WWUS85 KBOU 042226 RFWBOU URGENT - FIRE WEATHER MESSAGE National Weather Service Denver/Boulder CO 326 PM MST Sat Mar 4 2017 ...HIGH FIRE DANGER THROUGH MONDAY... .Gusty southwest winds, very low relative humidity, well above average temperatures, and dry fuels may result dangerous fire behavior including large fire spreads should fires get started. Fire danger will become critical in more areas on Sunday, spreading onto more of the plains and through the foothills. On Monday, strong winds will likely create even more critical conditions. Open burning is prohibited on Red Flag Warning days. Residents across all of northeast Colorado should remain alert as these potentially dangerous conditions could expand in area with little notice. COZ241-246-247-050630- /O.UPG.KBOU.FW.A.0006.170305T1900Z-170306T0100Z/ /O.NEW.KBOU.FW.W.0008.170305T1700Z-170306T0200Z/ /O.NEW.KBOU.FW.A.0007.170306T1800Z-170307T0100Z/ /O.CON.KBOU.FW.W.0007.000000T0000Z-170305T0100Z/ Elbert/Central and East Douglas Counties Above 6000 Feet- North and Northeast Elbert County Below 6000 Feet/North Lincoln County- Southeast Elbert County Below 6000 Feet/South Lincoln County- 326 PM MST Sat Mar 4 2017 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR THE PALMER DIVIDE THROUGH LINCOLN COUNTY... ...RED FLAG WARNING IN EFFECT FROM 10 AM TO 7 PM MST SUNDAY FOR WIND AND LOW RELATIVE HUMIDITY... ...FIRE WEATHER WATCH IN EFFECT FROM MONDAY MORNING THROUGH MONDAY AFTERNOON FOR WIND AND LOW RELATIVE HUMIDITY... The National Weather Service in Denver has issued a Red Flag Warning FOR WIND AND LOW RELATIVE HUMIDITY...which is in effect from 10 AM to 7 PM MST Sunday. A Fire Weather Watch has also been issued FOR WIND AND LOW RELATIVE HUMIDITY for Monday. * Affected Area...Fire Weather Zones 241...246 and 247. * Timing...Critical fire weather conditions are occurring late this afternoon, and will redevelop on Sunday. Conditions should improve with nightfall on both days. Even stronger winds can be expected Monday. * Winds...Southwest winds 15 to 25 mph with gusts to 35 mph. On Monday, west winds 25 to 35 mph gusts up to 50 mph. * Relative Humidity...as low as 6 percent. * Impacts...Any wildfires will quickly spread through the dry vegetation with the warm, dry and gusty winds. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of gusty winds...very low relative humidity...and warm temperatures can contribute to extreme fire behavior. A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Continue to listen for the later forecasts and possible Red Flag Warnings from the National Weather Service. && $$ COZ216-050630- /O.UPG.KBOU.FW.A.0006.170305T1900Z-170306T0100Z/ /O.NEW.KBOU.FW.W.0008.170305T1700Z-170306T0200Z/ /O.CON.KBOU.FW.W.0007.000000T0000Z-170305T0100Z/ Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear Creek/Northeast Park Counties Below 9000 Feet- 326 PM MST Sat Mar 4 2017 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR THE SOUTHERN FRONT RANGE FOOTHILLS... ...RED FLAG WARNING IN EFFECT FROM 10 AM TO 7 PM MST SUNDAY FOR WIND AND LOW RELATIVE HUMIDITY... The National Weather Service in Denver has issued a Red Flag Warning FOR WIND AND LOW RELATIVE HUMIDITY...which is in effect from 10 AM to 7 PM MST Sunday. The Fire Weather Watch is no longer in effect. * Affected Area...Fire Weather Zone 216. * Timing...Critical fire weather conditions are occurring late this afternoon, and will again Sunday. Conditions should improve with nightfall on both days. Even stronger winds can be expected Monday, but humidities should improve slightly with cooler temperatures. * Winds...Southwest 15 to 25 mph with gusts up to 35 mph. * Relative Humidity...as low as 9 percent. * Impacts...Any wildfires will quickly spread through the dry vegetation with the warm, dry and gusty winds. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of gusty winds...very low relative humidity...and warm temperatures can contribute to extreme fire behavior. A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Continue to listen for the later forecasts and possible Red Flag Warnings from the National Weather Service. && $$ COZ240-245-249-050630- /O.UPG.KBOU.FW.A.0006.170305T1900Z-170306T0100Z/ /O.NEW.KBOU.FW.W.0008.170305T1700Z-170306T0200Z/ /O.NEW.KBOU.FW.A.0007.170306T1800Z-170307T0100Z/ North Douglas County Below 6000 Feet/Denver/West Adams and Arapahoe Counties/East Broomfield County- Central and East Adams and Arapahoe Counties-Washington County- 326 PM MST Sat Mar 4 2017 ...RED FLAG WARNING IN EFFECT FROM 10 AM TO 7 PM MST SUNDAY FOR WIND AND LOW RELATIVE HUMIDITY FORT PORTIONS OF THE PLAINS FROM DENVER EAST THROUGH WASHINGTON COUNTY... ...FIRE WEATHER WATCH IN EFFECT FROM MONDAY MORNING THROUGH MONDAY AFTERNOON FOR WIND AND LOW RELATIVE HUMIDITY... The National Weather Service in Denver has issued a Red Flag Warning FOR WIND AND LOW RELATIVE HUMIDITY...which is in effect from 10 AM to 7 PM MST Sunday. A Fire Weather Watch has also been issued FOR WIND AND LOW HUMIDITY for Monday... * Affected Area...Fire Weather Zones 240...245 and 249. * Timing...Critical fire weather conditions will develop Sunday. Conditions should improve with nightfall. Even stronger winds can be expected Monday. * Winds...Southwest winds 10 to 20 mph with gusts to 30 mph. On Monday, northwest winds 20 to 35 mph with gusts up to 50 mph. * Relative Humidity...as low as 8 percent. * Impacts...Dry vegetation will be prone to dangerous fire behavior should fires get started. Rapid fire spread will be possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Fire Weather Watch means that critical fire weather conditions may occur. Continue to listen for the later forecasts and possible Red Flag Warnings from the National Weather Service. A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ COZ238-239-050630- /O.NEW.KBOU.FW.W.0008.170305T1700Z-170306T0200Z/ /O.NEW.KBOU.FW.A.0007.170306T1800Z-170307T0100Z/ Larimer County Below 6000 Feet/Northwest Weld County- Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County- 326 PM MST Sat Mar 4 2017 ...RED FLAG WARNING IN EFFECT FROM 10 AM TO 7 PM MST SUNDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR THE NORTHERN FRONT RANGE I-25 CORRIDOR... ...FIRE WEATHER WATCH IN EFFECT FROM MONDAY MORNING THROUGH MONDAY AFTERNOON FOR WIND AND LOW RELATIVE HUMIDITY... The National Weather Service in Denver has issued a Red Flag Warning FOR WIND AND LOW RELATIVE HUMIDITY...which is in effect from 10 AM to 7 PM MST Sunday. A Fire Weather Watch has also been issued FOR WIND AND LOW RELATIVE HUMIDITY for Monday. * Affected Area...Fire Weather Zones 238 and 239. * Timing...Critical fire weather conditions will develop Sunday. Conditions should improve with nightfall. Even stronger winds can be expected Monday. * Winds...Southwest 10 to 20 mph with gusts up to 30 mph. On Monday, northwest 25 to 35 mph with gusts up to 50 mph. * Relative Humidity...as low as 10 percent. * Impacts...Dry vegetation will be prone to dangerous fire behavior should fires get started. Rapid fire spread will be possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings. && $$ COZ215-050630- /O.NEW.KBOU.FW.W.0008.170305T1700Z-170306T0200Z/ Larimer and Boulder Counties Between 6000 and 9000 Feet- 326 PM MST Sat Mar 4 2017 ...RED FLAG WARNING IN EFFECT FROM 10 AM TO 7 PM MST SUNDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR THE NORTHERN FRONT RANGE FOOTHILLS... The National Weather Service in Denver has issued a Red Flag Warning FOR WIND AND LOW RELATIVE HUMIDITY...which is in effect from 10 AM to 7 PM MST Sunday. * Affected Area...Fire Weather Zone 215. * Timing...Conditions will deteriorate Sunday morning with critical conditions through the afternoon as humidities lower. Conditions should improve with nightfall. Even stronger winds can be expected Monday, but humidities should improve slightly with cooler temperatures. * Winds...Southwest 10 to 20 mph with gusts up to 35 mph. * Relative Humidity...as low as 12 percent. * Impacts...Dry vegetation will be prone to dangerous fire behavior should fires get started. Rapid fire spread will be possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ COZ242>244-248-250-251-050630- /O.NEW.KBOU.FW.A.0007.170306T1800Z-170307T0100Z/ Northeast Weld County-Central and South Weld County-Morgan County- Logan County-Sedgwick County-Phillips County- 326 PM MST Sat Mar 4 2017 ...FIRE WEATHER WATCH IN EFFECT FROM MONDAY MORNING THROUGH MONDAY AFTERNOON FOR WIND AND LOW RELATIVE HUMIDITY FOR THE NORTHEASTERN PLAINS... The National Weather Service in Denver has issued a Fire Weather Watch FOR WIND AND LOW RELATIVE HUMIDITY...which is in effect from Monday morning through Monday afternoon. * Affected Area...Fire Weather Zones 242...243...244...248... 250 and 251. * Timing...strong winds and critical fire weather conditions will likely develop Monday morning and continue through the day. * Winds...Northwest 25 to 35 mph with gusts up to 50 mph. * Relative Humidity...as low as 11 percent. * Impacts...Dry vegetation will be prone to dangerous fire behavior should fires get started. Rapid fire spread will be possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings. && $$
5 follow-up statements
494 WWUS85 KBOU 050101 RFWBOU URGENT - FIRE WEATHER MESSAGE National Weather Service Denver/Boulder CO 601 PM MST Sat Mar 4 2017 ...HIGH FIRE DANGER THROUGH MONDAY... .Gusty southwest winds, very low relative humidity, well above average temperatures, and dry fuels may result dangerous fire behavior including large fire spreads should fires get started. Fire danger will become critical in more areas on Sunday, spreading onto more of the plains and through the foothills. On Monday, strong winds will likely create even more critical conditions. Open burning is prohibited on Red Flag Warning days. Residents across all of northeast Colorado should remain alert as these potentially dangerous conditions could expand in area with little notice. COZ241-246-247-051200- /O.EXP.KBOU.FW.W.0007.000000T0000Z-170305T0100Z/ /O.CON.KBOU.FW.W.0008.170305T1700Z-170306T0200Z/ /O.CON.KBOU.FW.A.0007.170306T1800Z-170307T0100Z/ Elbert/Central and East Douglas Counties Above 6000 Feet- North and Northeast Elbert County Below 6000 Feet/North Lincoln County- Southeast Elbert County Below 6000 Feet/South Lincoln County- 601 PM MST Sat Mar 4 2017 ...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM TO 7 PM MST SUNDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR THE PALMER DIVIDE THROUGH LINCOLN COUNTY... ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM MONDAY MORNING THROUGH MONDAY AFTERNOON FOR WIND AND LOW RELATIVE HUMIDITY... FOR ...RED FLAG WARNING WILL EXPIRE AT 6 PM MST THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY... * Affected Area...Fire Weather Zones 241...246 and 247. * Timing...Critical fire weather conditions are expected redevelop on Sunday. Conditions should improve with nightfall. Even stronger winds can be expected Monday. * Winds...Southwest 25 to 35 mph with gusts up to 55 mph. * Relative Humidity...as low as 6 percent. * Impacts...Any wildfires will quickly spread through the dry vegetation with the warm, dry and gusty winds. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of gusty winds...very low relative humidity...and warm temperatures can contribute to extreme fire behavior. A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Continue to listen for the later forecasts and possible Red Flag Warnings from the National Weather Service. && $$ COZ216-051200- /O.EXP.KBOU.FW.W.0007.000000T0000Z-170305T0100Z/ /O.CON.KBOU.FW.W.0008.170305T1700Z-170306T0200Z/ Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear Creek/Northeast Park Counties Below 9000 Feet- 601 PM MST Sat Mar 4 2017 ...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM TO 7 PM MST SUNDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR THE SOUTHERN FRONT RANGE FOOTHILLS... ...RED FLAG WARNING WILL EXPIRE AT 6 PM MST THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY... * Affected Area...Fire Weather Zone 216. * Timing...Critical fire weather conditions will return again Sunday. Conditions should improve with nightfall. Even stronger winds can be expected Monday, but humidities should improve slightly with cooler temperatures. * Winds...Southwest 10 to 20 mph with gusts up to 40 mph. * Relative Humidity...as low as 7 percent. * Impacts...Any wildfires will quickly spread through the dry vegetation with the warm, dry and gusty winds. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of gusty winds...very low relative humidity...and warm temperatures can contribute to extreme fire behavior. A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Continue to listen for the later forecasts and possible Red Flag Warnings from the National Weather Service. && $$ COZ238>240-245-249-051200- /O.CON.KBOU.FW.W.0008.170305T1700Z-170306T0200Z/ /O.CON.KBOU.FW.A.0007.170306T1800Z-170307T0100Z/ Larimer County Below 6000 Feet/Northwest Weld County- Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County- North Douglas County Below 6000 Feet/Denver/West Adams and Arapahoe Counties/East Broomfield County- Central and East Adams and Arapahoe Counties-Washington County- 601 PM MST Sat Mar 4 2017 ...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM TO 7 PM MST SUNDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR PORTIONS OF THE PLAINS FROM DENVER EAST THROUGH WASHINGTON COUNTY... ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM MONDAY MORNING THROUGH MONDAY AFTERNOON FOR WIND AND LOW RELATIVE HUMIDITY... * Affected Area...Fire Weather Zones 238...239...240...245 and 249. * Timing...Critical fire weather conditions will develop Sunday. Conditions should improve with nightfall. Even stronger winds can be expected Monday. * Winds...West 25 to 35 mph with gusts up to 55 mph. * Relative Humidity...as low as 8 percent. * Impacts...Dry vegetation will be prone to dangerous fire behavior should fires get started. Rapid fire spread will be possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Fire Weather Watch means that critical fire weather conditions may occur. Continue to listen for the later forecasts and possible Red Flag Warnings from the National Weather Service. A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ COZ215-051200- /O.CON.KBOU.FW.W.0008.170305T1700Z-170306T0200Z/ Larimer and Boulder Counties Between 6000 and 9000 Feet- 601 PM MST Sat Mar 4 2017 ...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM TO 7 PM MST SUNDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR NORTHERN FRONT RANGE FOOTHILLS... * Affected Area...Fire Weather Zone 215. * Timing...Conditions will deteriorate Sunday morning with critical conditions through the afternoon as humidities lower. Conditions should improve with nightfall. Even stronger winds can be expected Monday, but humidities should improve slightly with cooler temperatures. * Winds...Southwest 10 to 20 mph with gusts up to 40 mph. * Relative Humidity...as low as 12 percent. * Impacts...Dry vegetation will be prone to dangerous fire behavior should fires get started. Rapid fire spread will be possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ COZ242>244-248-250-251-051200- /O.CON.KBOU.FW.A.0007.170306T1800Z-170307T0100Z/ Northeast Weld County-Central and South Weld County-Morgan County- Logan County-Sedgwick County-Phillips County- 601 PM MST Sat Mar 4 2017 ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM MONDAY MORNING THROUGH MONDAY AFTERNOON FOR WIND AND LOW RELATIVE HUMIDITY FOR THE NORTHEASTERN PLAINS.. * Affected Area...Fire Weather Zones 242...243...244...248... 250 and 251. * Timing...strong winds and critical fire weather conditions will likely develop Monday morning and continue through the day. * Winds...Northwest 30 to 40 mph with gusts up to 60 mph. * Relative Humidity...as low as 11 percent. * Impacts...Dry vegetation will be prone to dangerous fire behavior should fires get started. Rapid fire spread will be possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings. && $$
037 WWUS85 KBOU 051102 RFWBOU URGENT - FIRE WEATHER MESSAGE National Weather Service Denver/Boulder CO 402 AM MST Sun Mar 5 2017 ...VERY HIGH FIRE DANGER THROUGH MONDAY... .Dangerous wildland fire behavior including rapid fire spread are likely should fires start in the Front Range foothills and on the plains of northeast Colorado today and Monday. Strong and gusty southwest winds, low relative humidity, above average temperatures and dry fuels will contribute to this hazardous fire behavior. On Sunday...very strong northwest winds and low relative humidity behind a cold front may produce extreme fire behavior even with cooler temperatures. Open burning is prohibited on Red Flag Warning days. Residents across all of northeast Colorado should prepare for these critical fire weather conditions. COZ238>241-245>247-249-051915- /O.UPG.KBOU.FW.A.0007.170306T1800Z-170307T0100Z/ /O.NEW.KBOU.FW.W.0009.170306T1800Z-170307T0100Z/ /O.CON.KBOU.FW.W.0008.170305T1700Z-170306T0200Z/ Larimer County Below 6000 Feet/Northwest Weld County- Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County- North Douglas County Below 6000 Feet/Denver/West Adams and Arapahoe Counties/East Broomfield County- Elbert/Central and East Douglas Counties Above 6000 Feet- Central and East Adams and Arapahoe Counties- North and Northeast Elbert County Below 6000 Feet/North Lincoln County- Southeast Elbert County Below 6000 Feet/South Lincoln County- Washington County- 402 AM MST Sun Mar 5 2017 ...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 7 PM MST THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR THE FRONT RANGE FOOTHILLS AND MOST OF NORTHEAST COLORADO INCLUDING THE DENVER METRO AREA AND PALMER DIVIDE... ...RED FLAG WARNING IN EFFECT FROM 11 AM TO 6 PM MST MONDAY FOR STRONG WINDS AND LOW RELATIVE HUMIDITY FOR ALL OF NORTHEAST AND EAST CENTRAL COLORADO... The National Weather Service in Denver has issued a Red Flag Warning FOR WIND AND LOW RELATIVE HUMIDITY...which is in effect from 11 AM to 6 PM MST Monday. * Affected Area...Fire Weather Zones 238...239...240...241...245... 246...247 and 249. * Timing...Critical fire weather conditions will develop by this afternoon. Conditions should improve with nightfall. Even stronger winds are expected on Monday. * Winds...Southwest 20 to 30 mph today, and northwest winds 20 to 35 mph with gusts to around 55 mph on Monday. * Relative Humidity...as low as 7 percent. * Impacts...Dry vegetation will be prone to fire, and the low humidity and strong winds will produce dangerous fire behavior...including rapid fire spread...should fires start. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ COZ242>244-248-250-251-051915- /O.UPG.KBOU.FW.A.0007.170306T1800Z-170307T0100Z/ /O.NEW.KBOU.FW.W.0009.170306T1800Z-170307T0100Z/ Northeast Weld County-Central and South Weld County-Morgan County- Logan County-Sedgwick County-Phillips County- 402 AM MST Sun Mar 5 2017 ...RED FLAG WARNING IN EFFECT FROM 11 AM TO 6 PM MST MONDAY FOR STRONG WINDS AND LOW RELATIVE HUMIDITY FOR PORTIONS OF NORTHEAST COLORADO... The National Weather Service in Denver has issued a Red Flag Warning FOR STRONG WIND AND LOW RELATIVE HUMIDITY...which is in effect from 11 AM to 6 PM MST Monday. The fire weather watch is no longer in effect. * Affected Area...Fire Weather Zones 242...243...244...248... 250 and 251. * Timing...strong winds and critical fire weather conditions will likely to develop Monday morning and continue through the day. * Winds...Northwest 30 to 45 mph with gusts up to 60 mph. * Relative Humidity...as low as 11 percent. * Impacts...Dry vegetation will be prone to active fire and rapid fire spread is likely with the strong winds. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ COZ215-216-051915- /O.CON.KBOU.FW.W.0008.170305T1700Z-170306T0200Z/ Larimer and Boulder Counties Between 6000 and 9000 Feet- Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear Creek/Northeast Park Counties Below 9000 Feet- 402 AM MST Sun Mar 5 2017 ...RED FLAG WARNING WILL BE IN EFFECT FROM 10 AM THIS MORNING TO 7 PM MST THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR THE FRONT RANGE FOOTHILLS... * Affected Area...Fire Weather Zones 215 and 216. * Timing...Critical fire weather conditions are likely today. Conditions should improve tonight. Winds will be stronger on Monday, but humidities will be higher with showers around, and temperatures will be cooler which should reduce the risk of large fire growth and rapid fire spread. * Winds...Southwest 15 to 25 mph with gusts up to 40 mph. * Relative Humidity...as low as 12 percent. * Impacts...Any wildfires will quickly spread through the dry vegetation with the warm and gusty winds. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of gusty winds...very low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ Baker
593 WWUS85 KBOU 051902 RFWBOU URGENT - FIRE WEATHER MESSAGE National Weather Service Denver/Boulder CO 1202 PM MST Sun Mar 5 2017 ...VERY HIGH FIRE DANGER THROUGH MONDAY... .Dangerous fire weather conditions will exist along the Front Range Foothills and across the plains of northeast Colorado this afternoon and Monday. If fires start, rapid spread will be possible due to the strong winds and low humidity. Through early this evening, gusty southwest winds, low relative humidity, above average temperatures and dry fuels will contribute to this hazardous fire behavior. On Monday, very strong northwest winds and low relative humidity behind a cold front may produce extreme fire behavior even with cooler temperatures. Open burning is prohibited on Red Flag Warning days. Residents across all of northeast Colorado should prepare for these critical fire weather conditions. COZ238>241-245>247-249-060315- /O.CON.KBOU.FW.W.0008.000000T0000Z-170306T0200Z/ /O.CON.KBOU.FW.W.0009.170306T1800Z-170307T0100Z/ Larimer County Below 6000 Feet/Northwest Weld County- Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County- North Douglas County Below 6000 Feet/Denver/West Adams and Arapahoe Counties/East Broomfield County- Elbert/Central and East Douglas Counties Above 6000 Feet- Central and East Adams and Arapahoe Counties- North and Northeast Elbert County Below 6000 Feet/North Lincoln County- Southeast Elbert County Below 6000 Feet/South Lincoln County- Washington County- 1202 PM MST Sun Mar 5 2017 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM MST THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR THE I-25 CORRIDOR INCLUDING THE DENVER METRO AREA AND PALMER DIVIDE EASTWARD THROUGH WASHINGTON AND LINCOLN COUNTIES... ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM TO 6 PM MST MONDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR MOST OF NORTHEAST COLORADO INCLUDING I-25 CORRIDOR AND PALMER DIVIDE... * Affected Area...Fire Weather Zones 238...239...240...241... 245...246...247 and 249. * Timing...Critical fire weather conditions will develop by this afternoon. Conditions should improve with nightfall. Even stronger winds are expected on Monday. * Winds...Southwest winds 15 to 25 mph with gusts around 35 mph today. On Monday, West/northwest winds 25-40 mph with gusts up to 60 mph. * Relative Humidity...as low as 8 percent. * Impacts...Dry vegetation will be prone to fire, and the low humidity and strong winds will produce dangerous fire behavior... including rapid fire spread...should fires start. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ COZ215-216-060200- /O.CON.KBOU.FW.W.0008.000000T0000Z-170306T0200Z/ Larimer and Boulder Counties Between 6000 and 9000 Feet- Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear Creek/Northeast Park Counties Below 9000 Feet- 1202 PM MST Sun Mar 5 2017 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM MST THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR THE FRONT RANGE FOOTHILLS... * Affected Area...Fire Weather Zones 215 and 216. * Timing...Critical fire weather conditions are likely today. Winds will be stronger on Monday, but humidities will be higher with a few showers around, and temperatures will be cooler which should reduce the risk of large fire growth and rapid fire spread. * Winds...Southwest 10 to 20 mph with gusts up to 35 mph. * Relative Humidity...as low as 13 percent. * Impacts...Any wildfires will quickly spread through the dry vegetation with the warm and gusty winds. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of gusty winds...very low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ COZ242>244-248-250-251-060315- /O.CON.KBOU.FW.W.0009.170306T1800Z-170307T0100Z/ Northeast Weld County-Central and South Weld County-Morgan County- Logan County-Sedgwick County-Phillips County- 1202 PM MST Sun Mar 5 2017 ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM TO 6 PM MST MONDAY FOR STRONG WINDS AND LOW RELATIVE HUMIDITY FOR THE NORTHEAST PLAINS OF COLORADO... * Affected Area...Fire Weather Zones 242...243...244...248... 250 and 251. * Timing...strong winds and critical fire weather conditions will likely to develop Monday morning and continue through the day. * Winds...Northwest 30 to 45 mph with gusts up to 60 mph. * Relative Humidity...as low as 11 percent. * Impacts...Dry vegetation will be prone to active fire and rapid fire spread is likely with the strong winds. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$
056 WWUS85 KBOU 052139 RFWBOU URGENT - FIRE WEATHER MESSAGE National Weather Service Denver/Boulder CO 239 PM MST Sun Mar 5 2017 ...VERY HIGH FIRE DANGER THROUGH MONDAY... .Dangerous fire weather conditions will exist along the Front Range Foothills and across the plains of northeast Colorado through early this evening and then again through most of Monday. If fires start, rapid spread will be possible due to the strong winds and low humidity. Through early this evening, gusty southwest winds, low relative humidity, above average temperatures and dry fuels will contribute to this hazardous fire behavior. On Monday, very strong northwest winds and low relative humidity behind a cold front may produce extreme fire behavior even with cooler temperatures. Open burning is prohibited on Red Flag Warning days. Residents across all of northeast Colorado should prepare for these critical fire weather conditions. COZ238>241-245>247-249-060545- /O.EXT.KBOU.FW.W.0009.170306T1500Z-170307T0100Z/ /O.CON.KBOU.FW.W.0008.000000T0000Z-170306T0200Z/ Larimer County Below 6000 Feet/Northwest Weld County- Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County- North Douglas County Below 6000 Feet/Denver/West Adams and Arapahoe Counties/East Broomfield County- Elbert/Central and East Douglas Counties Above 6000 Feet- Central and East Adams and Arapahoe Counties- North and Northeast Elbert County Below 6000 Feet/North Lincoln County- Southeast Elbert County Below 6000 Feet/South Lincoln County- Washington County- 239 PM MST Sun Mar 5 2017 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM MST THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR THE I-25 CORRIDOR INCLUDING THE DENVER METRO AREA AND PALMER DIVIDE EASTWARD THROUGH WASHINGTON AND LINCOLN COUNTIES... ...RED FLAG WARNING NOW IN EFFECT FROM 8 AM TO 6 PM MST MONDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR THE I-25 CORRIDOR INCLUDING THE DENVER METRO AREA AND PALMER DIVIDE EASTWARD THROUGH WASHINGTON AND LINCOLN COUNTIES... * Affected Area...Fire Weather Zones 238...239...240...241... 245...246...247 and 249. * Timing...Fire danger should improve with nightfall. Even stronger winds and higher fire danger are expected on Monday. * Winds...Southwest winds 15 to 20 mph with gusts around 30 mph through early evening. On Monday, west/northwest winds 25-40 mph with gusts up to 60 mph. * Relative Humidity...as low as 8 percent. * Impacts...Dry vegetation will be prone to fire, and the low humidity and strong winds will produce dangerous fire behavior... including rapid fire spread...should fires start. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ COZ242>244-248-250-251-060545- /O.EXT.KBOU.FW.W.0009.170306T1500Z-170307T0100Z/ Northeast Weld County-Central and South Weld County-Morgan County- Logan County-Sedgwick County-Phillips County- 239 PM MST Sun Mar 5 2017 ...RED FLAG WARNING NOW IN EFFECT FROM 8 AM TO 6 PM MST MONDAY FOR STRONG WINDS AND LOW RELATIVE HUMIDITY FOR THE NORTHEAST PLAINS OF COLORADO... * Affected Area...Fire Weather Zones 242...243...244...248... 250 and 251. * Timing...strong winds and critical fire weather conditions will likely to develop Monday morning and continue through the day. * Winds...Northwest 30 to 45 mph with gusts up to 60 mph. * Relative Humidity...as low as 11 percent. * Impacts...Dry vegetation will be prone to active fire and rapid fire spread is likely with the strong winds. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ COZ215-216-060200- /O.CON.KBOU.FW.W.0008.000000T0000Z-170306T0200Z/ Larimer and Boulder Counties Between 6000 and 9000 Feet- Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear Creek/Northeast Park Counties Below 9000 Feet- 239 PM MST Sun Mar 5 2017 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM MST THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR THE FRONT RANGE FOOTHILLS... * Affected Area...Fire Weather Zones 215 and 216. * Timing...Critical fire weather conditions with gusty southwest winds to around 30 mph will continue into this evening. Winds will be stronger on Monday, but humidities will be higher with a few showers around, and temperatures will be cooler which should reduce the risk of large fire growth and rapid fire spread. * Winds...Southwest 10 to 20 mph with gusts up to 35 mph. * Relative Humidity...as low as 13 percent. * Impacts...Any wildfires will quickly spread through the dry vegetation with the warm and gusty winds. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of gusty winds...very low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$
028 WWUS85 KBOU 060205 RFWBOU URGENT - FIRE WEATHER MESSAGE National Weather Service Denver/Boulder CO 705 PM MST Sun Mar 5 2017 ...VERY HIGH FIRE DANGER THROUGH MONDAY... .Cooler temperatures and higher humidities have brought slight improvement to the fire danger this evening. However, it remains quite dry and breezy, especially across Douglas and Elbert counties, and so the fire danger does remain elevated. A strong cold front will move through around sunrise, followed by west to northwest winds gusting as high as 60 mph. Humidities will remain low, creating extreme fire danger across all of eastern Colorado during the day Monday. Residents should postpone any planned burning and avoid activities that could create sparks or otherwise start fires. Fire agencies should be prepared for the possibility of rapidly spreading wildfires. COZ238>241-245>247-249-061015- /O.EXP.KBOU.FW.W.0008.000000T0000Z-170306T0200Z/ /O.CON.KBOU.FW.W.0009.170306T1500Z-170307T0100Z/ Larimer County Below 6000 Feet/Northwest Weld County- Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County- North Douglas County Below 6000 Feet/Denver/West Adams and Arapahoe Counties/East Broomfield County- Elbert/Central and East Douglas Counties Above 6000 Feet- Central and East Adams and Arapahoe Counties- North and Northeast Elbert County Below 6000 Feet/North Lincoln County- Southeast Elbert County Below 6000 Feet/South Lincoln County- Washington County- 705 PM MST Sun Mar 5 2017 ...RED FLAG WARNING REMAINS IN EFFECT FROM 8 AM TO 6 PM MST MONDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR THE I-25 CORRIDOR INCLUDING THE DENVER METRO AREA AND PALMER DIVIDE EASTWARD THROUGH WASHINGTON AND LINCOLN COUNTIES... ...RED FLAG WARNING WILL EXPIRE AT 7 PM MST THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR THE I-25 CORRIDOR INCLUDING THE DENVER METRO AREA AND PALMER DIVIDE EASTWARD THROUGH WASHINGTON AND LINCOLN COUNTIES... * Affected Area...Fire Weather Zones 238...239...240...241... 245...246...247 and 249. * Timing...Fire danger will improve this evening, though it will remain warm, dry, and windy in areas south and southeast of Denver. Even stronger winds and higher fire danger are expected on Monday. * Winds...West to northwest winds 25-40 mph with gusts up to 60 mph during the day on Monday. * Relative Humidity...as low as 8 percent. * Impacts...Dry vegetation will be prone to fire, and the low humidity and strong winds will produce dangerous fire behavior... including rapid fire spread...should fires start. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ COZ215-216-060315- /O.EXP.KBOU.FW.W.0008.000000T0000Z-170306T0200Z/ Larimer and Boulder Counties Between 6000 and 9000 Feet- Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear Creek/Northeast Park Counties Below 9000 Feet- 705 PM MST Sun Mar 5 2017 ...RED FLAG WARNING WILL EXPIRE AT 7 PM MST THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR THE FRONT RANGE FOOTHILLS... Conditions will improve a bit this evening due to cooler temperatures and higher humidities. It will still be quite windy in Douglas county where the fire danger will be higher. $$ COZ242>244-248-250-251-061015- /O.CON.KBOU.FW.W.0009.170306T1500Z-170307T0100Z/ Northeast Weld County-Central and South Weld County-Morgan County- Logan County-Sedgwick County-Phillips County- 705 PM MST Sun Mar 5 2017 ...RED FLAG WARNING REMAINS IN EFFECT FROM 8 AM TO 6 PM MST MONDAY FOR STRONG WINDS AND LOW RELATIVE HUMIDITY FOR THE NORTHEAST PLAINS OF COLORADO... * Affected Area...Fire Weather Zones 242...243...244...248... 250 and 251. * Timing...strong winds and critical fire weather conditions will develop Monday morning and continue through the day. * Winds...Northwest 30 to 45 mph with gusts up to 60 mph. * Relative Humidity...as low as 11 percent. * Impacts...Dry vegetation will be prone to active fire and rapid fire spread is likely with the strong winds. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ Gimmestad
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 4, 3:26 PM MST | Fire Weather Watch | BOU | Adams, Arapahoe, Boulder, Broomfield, Denver, Douglas and 10 more | 13 hr |
Nearby
Red Flag Warnings in Colorado, 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.