Alert archive / Wyoming / Red Flag Warnings in 2016
Red Flag Warning 2, NWS Riverton, WY
NWS Riverton, WY issued this red flag warning at Jun 20, 2016, 9:32 PM MDT for 5 counties in Wyoming. It took effect at Jun 21, 2016, 12:00 PM MDT. It was in force for 9 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 20, 2016, 9:32 PM MDT (03:32 UTC)
- In effect from
- Jun 21, 2016, 12:00 PM MDT
- Expired
- Jun 21, 2016, 9:00 PM MDT
- In force
- 9 hr
- Issued by
- NWS Riverton, WY
Counties Fremont County, WY, Hot Springs County, WY, Johnson County, WY, Natrona County, WY, Washakie County, WY
The radar
The Riverton/Lander radar (KRIW), 86 km from the middle of the area, began a volume at 03:33 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
Riverton, WY (KRIW), launched 00:00Z, 3.5 hours before the alert went out and 81 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
- 7 J/kg
- Mixed-layer CIN
- -112 J/kg
- Mixed-layer LCL
- 3441 m above ground
- 0-6 km bulk shear
- 58 kt
- 0-1 km storm-relative helicity
- 101 m²/s²
- 0-3 km storm-relative helicity
- 187 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
044 WWUS85 KRIW 210332 RFWRIW URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 932 PM MDT MON JUN 20 2016 ...HOT... DRY... AND WINDY WEATHER EXPECTED FOR MUCH OF EAST CENTRAL WYOMING FOR TUESDAY AFTERNOON AND EARLY EVENING... .A DRY FRONT WILL SWEEP ACROSS EAST CENTRAL WYOMING TUESDAY AFTERNOON. AHEAD OF THE FRONT... INCREASING SOUTHWEST WINDS WILL USHER IN VERY HOT AND DRY AIR FROM THE DESERT SOUTHWEST. THIS HOT AND DRY AIRMASS WILL COUPLE WITH THE WINDS... RESULTING IN CRITICAL FIRE WEATHER FOR MUCH OF EAST CENTRAL WYOMING TUESDAY AFTERNOON AND EARLY EVENING. WYZ281-210900- /O.UPG.KRIW.FW.A.0002.160621T1800Z-160622T0300Z/ /O.NEW.KRIW.FW.W.0002.160621T1800Z-160622T0300Z/ JOHNSON COUNTY/CASPER BLM- 932 PM MDT MON JUN 20 2016 ...RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM MDT TUESDAY FOR WINDS OR GUSTS IN EXCESS OF 25 MPH AND VERY LOW RH VALUES... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM NOON TO 9 PM MDT TUESDAY. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. * AFFECTED AREA...FIRE WEATHER ZONE 281. * WIND...SOUTHWEST 15 TO 25 MPH SHIFTING TO THE NORTHWEST AT 25 TO 35 MPH AFTER 6 PM. * HUMIDITY...10 TO 15 PERCENT. | * 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 STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES CAN CONTRIBUTE TO EXTREME FIRE BEHAVIOR. && $$ WYZ280-210900- /O.UPG.KRIW.FW.A.0002.160621T1800Z-160622T0300Z/ /O.NEW.KRIW.FW.W.0002.160621T1800Z-160622T0300Z/ NATRONA COUNTY/CASPER BLM- 932 PM MDT MON JUN 20 2016 ...RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM MDT TUESDAY FOR WINDS OR GUSTS IN EXCESS OF 25 MPH AND VERY LOW RH VALUES... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM NOON TO 9 PM MDT TUESDAY. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. * AFFECTED AREA...FIRE WEATHER ZONE 280. * WIND...WEST SOUTHWEST 25 TO 35 MPH WITH SOME GUSTS TO 40 MPH...VEERING TO THE WEST NORTHWEST AFTER 6 PM AT THE SAME SPEEDS. * HUMIDITY...10 TO 15 PERCENT. * IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. OUTDOOR BURNING IS NOT RECOMMENDED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW....OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES CAN CONTRIBUTE TO EXTREME FIRE BEHAVIOR. && $$ WYZ285-300-210900- /O.UPG.KRIW.FW.A.0002.160621T1800Z-160622T0300Z/ /O.NEW.KRIW.FW.W.0002.160621T1800Z-160622T0300Z/ SOUTH BIGHORN MOUNTAINS-CASPER MOUNTAIN- 932 PM MDT MON JUN 20 2016 ...RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM MDT TUESDAY FOR WINDS OR GUSTS IN EXCESS OF 25 MPH AND VERY LOW RH VALUES... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM NOON TO 9 PM MDT TUESDAY. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. * AFFECTED AREA...FIRE WEATHER ZONE 285. FIRE WEATHER ZONE 300. * WIND...WEST SOUTHWEST 25 TO 35 MPH WITH SOME GUSTS TO 40 MPH...VEERING TO THE WEST NORTHWEST AT THE SAME SPEEDS AFTER 6 PM. * HUMIDITY...12 TO 15 PERCENT. 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. && $$
3 follow-up statements
569 WWUS85 KRIW 210726 RFWRIW URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 126 AM MDT TUE JUN 21 2016 ...HOT... DRY...AND WINDY WEATHER EXPECTED FOR MUCH OF EAST CENTRAL WYOMING THIS AFTERNOON AND EARLY EVENING... .A DRY FRONT WILL SWEEP ACROSS EAST CENTRAL WYOMING LATE THIS AFTERNOON AND EVENING. AHEAD OF THE FRONT... INCREASING SOUTHWEST WINDS WILL USHER IN VERY HOT AND DRY AIR FROM THE DESERT SOUTHWEST. THIS HOT AND DRY AIRMASS WILL COMBINE WITH THE WINDS...RESULTING IN EXTREME FIRE WEATHER FOR MUCH OF EAST CENTRAL WYOMING THIS AFTERNOON AND EARLY EVENING. WYZ281-212200- /O.CON.KRIW.FW.W.0002.160621T1800Z-160622T0300Z/ JOHNSON COUNTY/CASPER BLM- 126 AM MDT TUE JUN 21 2016 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 9 PM MDT THIS EVENING FOR WINDS OR GUSTS IN EXCESS OF 25 MPH AND VERY LOW RH VALUES... * AFFECTED AREA...FIRE WEATHER ZONE 281. * WIND...SOUTHWEST 15 TO 25 MPH SHIFTING TO THE NORTHWEST AT 25 TO 35 MPH AFTER 6 PM. * HUMIDITY...10 TO 15 PERCENT. | * IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. OUTDOOR BURNING IS NOT RECOMMENDED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW....OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES CAN CONTRIBUTE TO EXTREME FIRE BEHAVIOR. && $$ WYZ280-212200- /O.CON.KRIW.FW.W.0002.160621T1800Z-160622T0300Z/ NATRONA COUNTY/CASPER BLM- 126 AM MDT TUE JUN 21 2016 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 9 PM MDT THIS EVENING FOR WINDS OR GUSTS IN EXCESS OF 25 MPH AND VERY LOW RH VALUES... * AFFECTED AREA...FIRE WEATHER ZONE 280. * WIND...WEST SOUTHWEST 25 TO 35 MPH WITH SOME GUSTS TO 40 MPH...VEERING TO THE WEST NORTHWEST AFTER 6 PM. * HUMIDITY...10 TO 15 PERCENT. * 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 STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES CAN CONTRIBUTE TO EXTREME FIRE BEHAVIOR. && $$ WYZ285-300-212200- /O.CON.KRIW.FW.W.0002.160621T1800Z-160622T0300Z/ SOUTH BIGHORN MOUNTAINS-CASPER MOUNTAIN- 126 AM MDT TUE JUN 21 2016 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 9 PM MDT THIS EVENING FOR WINDS OR GUSTS IN EXCESS OF 25 MPH AND VERY LOW RH VALUES... * AFFECTED AREA...FIRE WEATHER ZONE 285. FIRE WEATHER ZONE 300. * WIND...WEST SOUTHWEST 25 TO 35 MPH WITH SOME GUSTS TO 40 MPH...VEERING TO THE WEST NORTHWEST AFTER 6 PM. * HUMIDITY...12 TO 17 PERCENT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW....OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES CAN CONTRIBUTE TO EXTREME FIRE BEHAVIOR. && $$
727 WWUS85 KRIW 212046 RFWRIW URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 246 PM MDT TUE JUN 21 2016 ...HOT... DRY...AND WINDY WEATHER EXPECTED FOR MUCH OF EAST CENTRAL WYOMING THROUGH THIS EVENING... .A DRY FRONT WILL SWEEP ACROSS EAST CENTRAL WYOMING LATE THIS AFTERNOON AND EVENING. AHEAD OF THE FRONT...STRONG SOUTHWEST WINDS WILL USHER IN VERY HOT AND DRY AIR FROM THE DESERT SOUTHWEST. THIS HOT AND DRY AIRMASS WILL COMBINE WITH THE WINDS... RESULTING IN EXTREME FIRE WEATHER FOR MUCH OF EAST CENTRAL WYOMING THIS AFTERNOON AND EARLY EVENING. WYZ281-220300- /O.CON.KRIW.FW.W.0002.000000T0000Z-160622T0300Z/ JOHNSON COUNTY/CASPER BLM- 246 PM MDT TUE JUN 21 2016 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR WINDS OR GUSTS IN EXCESS OF 25 MPH AND VERY LOW RH VALUES... * AFFECTED AREA...FIRE WEATHER ZONE 281. * WIND...SOUTHWEST 25 TO 40 MPH SHIFTING TO THE NORTHWEST AT 25 TO 35 MPH AFTER 6 PM. * HUMIDITY...10 TO 15 PERCENT. | * 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 STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES CAN CONTRIBUTE TO EXTREME FIRE BEHAVIOR. && $$ WYZ280-220300- /O.CON.KRIW.FW.W.0002.000000T0000Z-160622T0300Z/ NATRONA COUNTY/CASPER BLM- 246 PM MDT TUE JUN 21 2016 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR WINDS OR GUSTS IN EXCESS OF 25 MPH AND VERY LOW RH VALUES... * AFFECTED AREA...FIRE WEATHER ZONE 280. * WIND...WEST SOUTHWEST 25 TO 35 MPH WITH SOME GUSTS TO 40 MPH...VEERING TO THE WEST NORTHWEST AFTER 6 PM. * HUMIDITY...AROUND 10 PERCENT. * IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. OUTDOOR BURNING IS NOT RECOMMENDED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW....OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES CAN CONTRIBUTE TO EXTREME FIRE BEHAVIOR. && $$ WYZ285-300-220300- /O.CON.KRIW.FW.W.0002.000000T0000Z-160622T0300Z/ SOUTH BIGHORN MOUNTAINS-CASPER MOUNTAIN- 246 PM MDT TUE JUN 21 2016 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR WINDS OR GUSTS IN EXCESS OF 25 MPH AND VERY LOW RH VALUES... * AFFECTED AREA...FIRE WEATHER ZONE 285. FIRE WEATHER ZONE 300. * WIND...WEST SOUTHWEST 25 TO 35 MPH WITH SOME GUSTS TO 40 MPH...VEERING TO THE WEST NORTHWEST AFTER 6 PM. * HUMIDITY...12 TO 17 PERCENT. 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. && $$ TEAM RIVERTON
502 WWUS85 KRIW 220233 RFWRIW URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 833 PM MDT TUE JUN 21 2016 WYZ281-220345- /O.EXP.KRIW.FW.W.0002.000000T0000Z-160622T0300Z/ JOHNSON COUNTY/CASPER BLM- 833 PM MDT TUE JUN 21 2016 ...RED FLAG WARNING WILL EXPIRE AT 9 PM MDT THIS EVENING... THE RED FLAG WARNING WILL EXPIRE AT 9 PM...AS WINDS WILL CONTINUE TO DECREASE...AND RH BEGINS TO RISE. $$ WYZ280-220345- /O.EXP.KRIW.FW.W.0002.000000T0000Z-160622T0300Z/ NATRONA COUNTY/CASPER BLM- 833 PM MDT TUE JUN 21 2016 ...RED FLAG WARNING WILL EXPIRE AT 9 PM MDT THIS EVENING... THE RED FLAG WARNING WILL EXPIRE AT 9 PM...AS WINDS WILL CONTINUE TO DECREASE...AND RH BEGINS TO RISE. $$ WYZ285-300-220345- /O.EXP.KRIW.FW.W.0002.000000T0000Z-160622T0300Z/ SOUTH BIGHORN MOUNTAINS-CASPER MOUNTAIN- 833 PM MDT TUE JUN 21 2016 ...RED FLAG WARNING WILL EXPIRE AT 9 PM MDT THIS EVENING... THE RED FLAG WARNING WILL EXPIRE AT 9 PM...AS WINDS WILL CONTINUE TO DECREASE...AND RH BEGINS TO RISE. $$ 21
Nearby
Red Flag Warnings in Wyoming, 2016Every red flag warning in 2016
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.