Alert archive / Colorado / Red Flag Warnings in 2021
Red Flag Warning 9, NWS Grand Junction, CO
NWS Grand Junction, CO issued this red flag warning at Apr 14, 2021, 2:12 PM MDT for 7 counties in Colorado. It took effect at Apr 15, 2021, 12:00 PM MDT. It was in force for 8 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
- Apr 14, 2021, 2:12 PM MDT (20:12 UTC)
- In effect from
- Apr 15, 2021, 12:00 PM MDT
- Expired
- Apr 15, 2021, 7:37 PM MDT
- In force
- 8 hr
- Issued by
- NWS Grand Junction, CO
Counties Archuleta County, CO, Dolores County, CO, Hinsdale County, CO, La Plata County, CO, Montezuma County, CO, San Juan County, CO, San Miguel County, CO
The radar
The Grand Junction radar (KGJX), 165 km from the middle of the area, began a volume at 20:13 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
Grand Junction, CO (KGJT), launched 12:00Z, 8.2 hours before the alert went out and 178 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
- 5 J/kg
- Mixed-layer CIN
- -109 J/kg
- Mixed-layer LCL
- 2292 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- 183 m²/s²
- 0-3 km storm-relative helicity
- 259 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
146 WWUS85 KGJT 142012 RFWGJT URGENT - FIRE WEATHER MESSAGE National Weather Service Grand Junction CO 212 PM MDT Wed Apr 14 2021 COZ207-151200- /O.UPG.KGJT.FW.A.0008.210415T1800Z-210416T0200Z/ /O.NEW.KGJT.FW.W.0009.210415T1800Z-210416T0200Z/ /O.CON.KGJT.FW.W.0008.000000T0000Z-210415T0300Z/ Southwest Colorado Lower Forecast Area- 212 PM MDT Wed Apr 14 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR GUSTY WINDS, LOW RELATIVE HUMIDITY AND DRY FUELS FOR FIRE WEATHER ZONE 207... ...RED FLAG WARNING IN EFFECT FROM NOON TO 8 PM MDT THURSDAY FOR GUSTY WINDS, LOW RELATIVE HUMIDITY AND DRY FUELS FOR FIRE WEATHER ZONE 207... The National Weather Service in Grand Junction has issued a Red Flag Warning for gusty winds, low relative humidity and dry fuels, which is in effect from noon to 8 PM MDT Thursday. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...In Colorado, Fire Weather Zone 207 Southwest Colorado Lower Forecast Area. * WINDS...Southwest 20 to 30 mph with gusts up to 50 mph. * RELATIVE HUMIDITY...9 to 14 percent. * IMPACTS...Conditions will become favorable for rapid ignition and spread of fires. 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. && $$ COZ295-151200- /O.UPG.KGJT.FW.A.0008.210415T1800Z-210416T0200Z/ /O.NEW.KGJT.FW.W.0009.210415T1800Z-210416T0200Z/ /O.CON.KGJT.FW.W.0008.000000T0000Z-210415T0300Z/ Southwest Colorado Upper East Forecast Area- 212 PM MDT Wed Apr 14 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR GUSTY WINDS, LOW RELATIVE HUMIDITY AND DRY FUELS FOR FIRE WEATHER ZONE 295 BELOW 8000 FEET... ...RED FLAG WARNING IN EFFECT FROM NOON TO 8 PM MDT THURSDAY FOR GUSTY WINDS, LOW RELATIVE HUMIDITY AND DRY FUELS FOR FIRE WEATHER ZONE 295 BELOW 8000 FEET... The National Weather Service in Grand Junction has issued a Red Flag Warning below 8000 feet for gusty winds, low relative humidity and dry fuels, which is in effect from noon to 8 PM MDT Thursday. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...In Colorado, Fire Weather Zone 295 Southwest Colorado Upper East Forecast Area below 8000 feet. * WINDS...Southwest 15 to 25 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...10 to 15 percent. * IMPACTS...Conditions will become favorable for rapid ignition and spread of fires. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ COZ290-UTZ490-491-150300- /O.CON.KGJT.FW.W.0008.000000T0000Z-210415T0300Z/ Paradox Valley Forecast Area-Colorado River Basin-Southeast Utah- 212 PM MDT Wed Apr 14 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR GUSTY WINDS, LOW RELATIVE HUMIDITY AND DRY FUELS FOR FIRE WEATHER ZONES 290, 490, AND 491... * AFFECTED AREA...In Colorado, Fire Weather Zone 290 Paradox Valley Forecast Area. In Utah, Fire Weather Zone 490 Colorado River Basin and Fire Weather Zone 491 Southeast Utah. * WINDS...Southwest 20 to 30 mph with gusts up to 50 mph. * RELATIVE HUMIDITY...8 to 13 percent. * IMPACTS...Conditions will become favorable for rapid ignition and spread of fires. 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. && $$ COZ203-292-150300- /O.CON.KGJT.FW.W.0008.000000T0000Z-210415T0300Z/ Lower Colorado River-North Fork Forecast Area- 212 PM MDT Wed Apr 14 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR GUSTY WINDS, LOW RELATIVE HUMIDITY AND DRY FUELS FOR FIRE WEATHER ZONES 203 AND 292 BELOW 8000 FEET... * AFFECTED AREA...In Colorado, Fire Weather Zone 203 Lower Colorado River and Fire Weather Zone 292 North Fork Forecast Area below 8000 feet. * WINDS...Southwest 20 to 30 mph with gusts up to 45 mph. * RELATIVE HUMIDITY...10 to 15 percent. * IMPACTS...Conditions will become favorable for rapid ignition and spread of fires. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$
4 follow-up statements
982 WWUS85 KGJT 150254 RFWGJT URGENT - FIRE WEATHER MESSAGE National Weather Service Grand Junction CO 854 PM MDT Wed Apr 14 2021 COZ207-151200- /O.EXP.KGJT.FW.W.0008.000000T0000Z-210415T0300Z/ /O.CON.KGJT.FW.W.0009.210415T1800Z-210416T0200Z/ Southwest Colorado Lower Forecast Area- 854 PM MDT Wed Apr 14 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TO 8 PM MDT THURSDAY FOR GUSTY WINDS, LOW RELATIVE HUMIDITY AND DRY FUELS FOR FIRE WEATHER ZONE 207... ...RED FLAG WARNING WILL EXPIRE AT 9 PM MDT THIS EVENING FOR GUSTY WINDS, LOW RELATIVE HUMIDITY AND DRY FUELS FOR FIRE WEATHER ZONE 207... * AFFECTED AREA...In Colorado, Fire Weather Zone 207 Southwest Colorado Lower Forecast Area. * WINDS...Southwest 20 to 30 mph with gusts up to 45 mph. * RELATIVE HUMIDITY...6 to 11 percent. * IMPACTS...Conditions will become favorable for rapid ignition and spread of fires. 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. && $$ COZ295-151200- /O.EXP.KGJT.FW.W.0008.000000T0000Z-210415T0300Z/ /O.CON.KGJT.FW.W.0009.210415T1800Z-210416T0200Z/ Southwest Colorado Upper East Forecast Area- 854 PM MDT Wed Apr 14 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TO 8 PM MDT THURSDAY FOR GUSTY WINDS, LOW RELATIVE HUMIDITY AND DRY FUELS FOR FIRE WEATHER ZONE 295 BELOW 8000 FEET... ...RED FLAG WARNING WILL EXPIRE AT 9 PM MDT THIS EVENING FOR GUSTY WINDS, LOW RELATIVE HUMIDITY AND DRY FUELS FOR FIRE WEATHER ZONE 295 BELOW 8000 FEET... * AFFECTED AREA...In Colorado, Fire Weather Zone 295 Southwest Colorado Upper East Forecast Area below 8000 feet. * WINDS...Southwest 15 to 25 mph with gusts up to 40 mph. * RELATIVE HUMIDITY...8 to 13 percent. * IMPACTS...Conditions will become favorable for rapid ignition and spread of fires. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ COZ290-UTZ490-491-150400- /O.EXP.KGJT.FW.W.0008.000000T0000Z-210415T0300Z/ Paradox Valley Forecast Area-Colorado River Basin-Southeast Utah- 854 PM MDT Wed Apr 14 2021 ...RED FLAG WARNING WILL EXPIRE AT 9 PM MDT THIS EVENING FOR GUSTY WINDS, LOW RELATIVE HUMIDITY AND DRY FUELS FOR FIRE WEATHER ZONES 290, 490, AND 491... Widespread critical fire conditions are no longer being met so the Red Flag Warning will be allowed to expire. Localized conditions may continue for the next few hours. $$ COZ203-292-150400- /O.EXP.KGJT.FW.W.0008.000000T0000Z-210415T0300Z/ Lower Colorado River-North Fork Forecast Area- 854 PM MDT Wed Apr 14 2021 ...RED FLAG WARNING WILL EXPIRE AT 9 PM MDT THIS EVENING FOR GUSTY WINDS, LOW RELATIVE HUMIDITY AND DRY FUELS FOR FIRE WEATHER ZONES 203 AND 292 BELOW 8000 FEET... Widespread critical fire conditions are no longer being met so the Red Flag Warning will be allowed to expire. Localized conditions may continue for the next few hours. $$
245 WWUS85 KGJT 150835 RFWGJT URGENT - FIRE WEATHER MESSAGE National Weather Service Grand Junction CO 235 AM MDT Thu Apr 15 2021 COZ207-152100- /O.CON.KGJT.FW.W.0009.210415T1800Z-210416T0200Z/ Southwest Colorado Lower Forecast Area- 235 AM MDT Thu Apr 15 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 8 PM MDT THIS EVENING FOR GUSTY WINDS, LOW RELATIVE HUMIDITY AND DRY FUELS FOR FIRE WEATHER ZONE 207... * AFFECTED AREA...In Colorado, Fire Weather Zone 207 Southwest Colorado Lower Forecast Area. * WINDS...West 15 to 25 mph with gusts up to 40 mph. * RELATIVE HUMIDITY...10 to 15 percent. * IMPACTS...Conditions will become favorable for rapid ignition and spread of fires. 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. && $$ COZ295-152100- /O.CON.KGJT.FW.W.0009.210415T1800Z-210416T0200Z/ Southwest Colorado Upper East Forecast Area- 235 AM MDT Thu Apr 15 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 8 PM MDT THIS EVENING FOR GUSTY WINDS, LOW RELATIVE HUMIDITY AND DRY FUELS FOR FIRE WEATHER ZONE 295 BELOW 8000 FEET... * AFFECTED AREA...In Colorado, Fire Weather Zone 295 Southwest Colorado Upper East Forecast Area below 8000 feet. * WINDS...West 15 to 25 mph with gusts up to 40 mph. * RELATIVE HUMIDITY...10 to 15 percent. * IMPACTS...Conditions will become favorable for rapid ignition and spread of fires. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$
255 WWUS85 KGJT 152035 RFWGJT URGENT - FIRE WEATHER MESSAGE National Weather Service Grand Junction CO 235 PM MDT Thu Apr 15 2021 COZ207-160200- /O.CON.KGJT.FW.W.0009.000000T0000Z-210416T0200Z/ Southwest Colorado Lower Forecast Area- 235 PM MDT Thu Apr 15 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS EVENING FOR GUSTY WINDS, LOW RELATIVE HUMIDITY AND DRY FUELS FOR FIRE WEATHER ZONE 207... * AFFECTED AREA...In Colorado, Fire Weather Zone 207 Southwest Colorado Lower Forecast Area. * WINDS...West 15 to 25 mph with gusts up to 40 mph. * RELATIVE HUMIDITY...10 to 15 percent. * IMPACTS...Conditions will become favorable for rapid ignition and spread of fires. 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. && $$ COZ295-160200- /O.CON.KGJT.FW.W.0009.000000T0000Z-210416T0200Z/ Southwest Colorado Upper East Forecast Area- 235 PM MDT Thu Apr 15 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS EVENING FOR GUSTY WINDS, LOW RELATIVE HUMIDITY AND DRY FUELS FOR FIRE WEATHER ZONE 295 BELOW 8000 FEET... * AFFECTED AREA...In Colorado, Fire Weather Zone 295 Southwest Colorado Upper East Forecast Area below 8000 feet. * WINDS...West 15 to 25 mph with gusts up to 40 mph. * RELATIVE HUMIDITY...10 to 15 percent. * IMPACTS...Conditions will become favorable for rapid ignition and spread of fires. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$
858 WWUS85 KGJT 160137 RFWGJT URGENT - FIRE WEATHER MESSAGE National Weather Service Grand Junction CO 737 PM MDT Thu Apr 15 2021 COZ207-295-160245- /O.CAN.KGJT.FW.W.0009.000000T0000Z-210416T0200Z/ Southwest Colorado Lower Forecast Area- Southwest Colorado Upper East Forecast Area- 737 PM MDT Thu Apr 15 2021 ...RED FLAG WARNING IS CANCELLED FOR GUSTY WINDS, LOW RELATIVE HUMIDITY AND DRY FUELS FOR FIRE WEATHER ZONES 207 AND 295... The National Weather Service in Grand Junction has cancelled the Red Flag Warning. Widespread critical fire conditions are no longer being met so the remainder of the Red Flag Warning is cancelled. $$
The office that day
Everything else NWS Grand Junction, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 14, 2:33 AM MDT | Fire Weather Watch | GJT | Archuleta, Dolores, Hinsdale, La Plata, Montezuma, San Juan and 1 more | 12 hr |
| Apr 14, 2:33 AM MDT | Wind Advisory | GJT | Dolores, Garfield, Mesa, Montezuma, Montrose, San Miguel | 18 hr |
Nearby
Red Flag Warnings in Colorado, 2021Every red flag warning in 2021
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.