Alert archive / Wyoming / Red Flag Warnings in 2021
Red Flag Warning 8, NWS Cheyenne, WY
NWS Cheyenne, WY issued this red flag warning at Jun 18, 2021, 7:18 PM MDT. It took effect at Jun 19, 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
- Jun 18, 2021, 7:18 PM MDT (01:18 UTC)
- In effect from
- Jun 19, 2021, 12:00 PM MDT
- Expired
- Jun 19, 2021, 8:00 PM MDT
- In force
- 8 hr
- Issued by
- NWS Cheyenne, WY
The text
As transmitted.
129 WWUS85 KCYS 190118 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 718 PM MDT Fri Jun 18 2021 ...RED FLAG WARNING IN EFFECT SATURDAY AFTERNOON AND EARLY EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 301 AND 302... WYZ301-302-191200- /O.UPG.KCYS.FW.A.0005.210619T1800Z-210620T0200Z/ /O.NEW.KCYS.FW.W.0008.210619T1800Z-210620T0200Z/ Niobrara/Lower Elevations of Converse/Thunder Basin National Grassland-North Laramie Range/Medicine Bow NF- 718 PM MDT Fri Jun 18 2021 ...RED FLAG WARNING IN EFFECT SATURDAY AFTERNOON AND EARLY EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 301 AND 302... The National Weather Service in Cheyenne has issued a Red Flag Warning, which is in effect from noon to 8 PM MDT Saturday. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...Fire weather zones 301 and 302. * WIND...West 15 to 20 mph with gusts to 30 mph. * HUMIDITY...10 to 15 percent. * HAINES...6. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is discouraged. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now...or will shortly. The combination of gusty winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$
3 follow-up statements
562 WWUS85 KCYS 190719 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 119 AM MDT Sat Jun 19 2021 ...RED FLAG WARNING IN EFFECT THIS AFTERNOON AND EARLY EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 301 AND 302... WYZ301-302-200000- /O.CON.KCYS.FW.W.0008.210619T1800Z-210620T0200Z/ Niobrara/Lower Elevations of Converse/Thunder Basin National Grassland-North Laramie Range/Medicine Bow NF- 119 AM MDT Sat Jun 19 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 8 PM MDT THIS EVENING FOR GUSTY WEST WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 301 AND 302... * AFFECTED AREA...Fire weather zones 301 and 302. * WIND...West 15 to 20 mph with gusts to 30 mph. * HUMIDITY...10 to 15 percent. * HAINES...6. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is discouraged. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now...or will shortly. The combination of gusty winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$
305 WWUS85 KCYS 191854 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 1254 PM MDT Sat Jun 19 2021 ...RED FLAG WARNING IN EFFECT THIS AFTERNOON AND EARLY EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 301 AND 302... ...FIRE WEATHER WATCH IS IN EFFECT FOR SUNDAY AFTERNOON FROM 10AM TO 6PM FOR FIRE WEATHER ZONES 305 AND 307... WYZ301-302-200200- /O.CON.KCYS.FW.W.0008.000000T0000Z-210620T0200Z/ Niobrara/Lower Elevations of Converse/Thunder Basin National Grassland-North Laramie Range/Medicine Bow NF- 1254 PM MDT Sat Jun 19 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS EVENING FOR LOW HUMIDITIES AND GUSTY WINDS FOR FIRE WEATHER ZONES 301 AND 302... * AFFECTED AREA...Fire weather zones 301 and 302. * WIND...West 15 to 20 mph with gusts to 30 mph. * HUMIDITY...10 to 15 percent. * HAINES...6. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is discouraged. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now...or will shortly. The combination of gusty winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ WYZ305-307-201100- /O.NEW.KCYS.FW.A.0006.210620T1600Z-210621T0000Z/ Sierra Madre Range/Medicine Bow NF-Snowy Range/Medicine Bow NF- 1254 PM MDT Sat Jun 19 2021 ...FIRE WEATHER WATCH IN EFFECT FROM 10AM SUNDAY MORNING THROUGH 6 PM SUNDAY FOR LOW HUMIDITIES AND GUSTY WINDS FOR FIRE WEATHER ZONES 305 AND 307... The National Weather Service in Cheyenne has issued a Fire Weather Watch, which is in effect from Sunday morning through Sunday afternoon. * AFFECTED AREA...Fire weather zone 305. Fire weather zone 307. * WIND...West to northwest winds at 15 to 25 mph with gusts up to 30 mph. * HUMIDITY...13 to 20 percent. * HAINES...4 to 5 * IMPACTS...any fires that develop will likely spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Fire Weather Watch means that critical fire weather conditions may develop. Listen for later forecasts and possible Red Flag Warnings. && $$
313 WWUS85 KCYS 200149 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 749 PM MDT Sat Jun 19 2021 ...RED FLAG WARNING IS IN EFFECT SUNDAY FROM NOON UNTIL 7 PM MDT FOR FIRE WEATHER ZONE 305... WYZ301-302-200300- /O.EXP.KCYS.FW.W.0008.000000T0000Z-210620T0200Z/ Niobrara/Lower Elevations of Converse/Thunder Basin National Grassland-North Laramie Range/Medicine Bow NF- 749 PM MDT Sat Jun 19 2021 ...RED FLAG WARNING WILL EXPIRE AT 8 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 301 AND 302... Winds will diminish and relative humidities rise above 15 percent this evening. $$ WYZ307-200300- /O.CAN.KCYS.FW.A.0006.210620T1600Z-210621T0000Z/ Snowy Range/Medicine Bow NF- 749 PM MDT Sat Jun 19 2021 ...FIRE WEATHER WATCH IS CANCELLED FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONE 307... The National Weather Service in Cheyenne has cancelled the Fire Weather Watch. Minimum relative humidities Sunday afternoon will be near 15 percent with wind gusts near 25 mph. $$ WYZ305-201200- /O.UPG.KCYS.FW.A.0006.210620T1600Z-210621T0000Z/ /O.NEW.KCYS.FW.W.0009.210620T1800Z-210621T0100Z/ Sierra Madre Range/Medicine Bow NF- 749 PM MDT Sat Jun 19 2021 ...RED FLAG WARNING IN EFFECT FROM NOON TO 7 PM MDT SUNDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONE 305... The National Weather Service in Cheyenne has issued a Red Flag Warning, which is in effect from Noon to 7 PM MDT Sunday. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...Fire weather zone 305. * WIND...West to northwest 15 to 20 mph with gusts up to 30 mph. * HUMIDITY...12 to 17 percent. * HAINES...5 TO 6. * IMPACTS..Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. 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...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$
The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 18, 7:21 PM MDT | Special Weather Statement | CYS | Laramie | 39 min |
| Jun 18, 7:35 PM MDT | Severe Thunderstorm Warning | CYS | Laramie | 40 min |
| Jun 18, 7:54 PM MDT | Severe Thunderstorm Warning | CYS | Laramie | 51 min |
| Jun 18, 8:13 PM MDT | Severe Thunderstorm Warning | CYS | Laramie | 47 min |
| Jun 18, 8:29 PM MDT | Severe Thunderstorm Warning | CYS | Laramie | 46 min |
| Jun 18, 8:30 PM MDT | Special Weather Statement | CYS | Laramie | 45 min |
| Jun 19, 12:54 PM MDT | Fire Weather Watch | CYS | 7 hr | |
| Jun 19, 1:18 PM MDT | Special Weather Statement | CYS | Laramie | 42 min |
| Jun 19, 1:51 PM MDT | Special Weather Statement | CYS | Laramie | 24 min |
Nearby
Red Flag Warnings in Wyoming, 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.