Alert archive / Wyoming / Red Flag Warnings in 2016
Red Flag Warning 18, NWS Riverton, WY
NWS Riverton, WY issued this red flag warning at Aug 7, 2016, 8:52 PM MDT for 5 counties in Wyoming. It took effect at Aug 8, 2016, 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
- Aug 7, 2016, 8:52 PM MDT (02:52 UTC)
- In effect from
- Aug 8, 2016, 12:00 PM MDT
- Expired
- Aug 8, 2016, 8:00 PM MDT
- In force
- 8 hr
- Issued by
- NWS Riverton, WY
Counties Fremont County, WY, Lincoln County, WY, Natrona County, WY, Sweetwater County, WY, Uinta County, WY
The radar
The Riverton/Lander radar (KRIW), 105 km from the middle of the area, began a volume at 02:54 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, 2.9 hours before the alert went out and 108 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
- 2779 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 114 m²/s²
- 0-3 km storm-relative helicity
- 159 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
077 WWUS85 KRIW 080252 RFWRIW URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 852 PM MDT SUN AUG 7 2016 ...CRITICAL FIRE WEATHER CONDITIONS EXPECTED ACROSS PORTIONS OF SOUTHWESTERN AND CENTRAL WYOMING MONDAY... .A VERY DRY AIRMASS COMBINED WITH GUSTY WEST TO SOUTHWEST WIND WILL PUSH ACROSS PORTIONS OF OF SOUTHWESTERN AND CENTRAL WYOMING MONDAY...BRINGING CRITICAL FIRE WEATHER CONDITIONS THROUGH THE AFTERNOON AND EARLY EVENING ON MONDAY ACROSS ZONES 277 AND 289. WYZ278-279-283-080400- /O.CAN.KRIW.FW.A.0013.160808T1800Z-160809T0300Z/ UPPER GREEN RIVER BASIN/ROCK SPRINGS BLM- SWEETWATER COUNTY/ROCK SPRINGS BLM/FLAMING GORGE NRA- UPPER WIND RIVER BASIN/WIND RIVER BASIN- 852 PM MDT SUN AUG 7 2016 ...FIRE WEATHER WATCH IS CANCELLED FOR FIRE WEATHER ZONES 278...279 AND 283... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS CANCELLED THE FIRE WEATHER WATCH. WHILE DRYING AND SOME INCREASE IN WINDS IS EXPECTED ACROSS THESE ZONES MONDAY...IT NOW APPEARS THAT CONDITIONS WILL REMAIN BELOW CRITICAL RED FLAG CONDITIONS FOR THE MOST PART. HOWEVER...FIRE WEATHER CONDITIONS WILL STILL REMAIN ENHANCED AND CAUTION IS WARRANTED BOTH MONDAY AFTERNOON AND EARLY EVENING. $$ WYZ277-289-080900- /O.UPG.KRIW.FW.A.0013.160808T1800Z-160809T0300Z/ /O.NEW.KRIW.FW.W.0018.160808T1800Z-160809T0200Z/ LINCOLN AND UINTA COUNTIES/LOWER ELEVATIONS- GRANITE/GREEN/FERRIS/RATTLESNAKE MOUNTAINS- 852 PM MDT SUN AUG 7 2016 ...RED FLAG WARNING IN EFFECT FROM NOON TO 8 PM MDT MONDAY FOR CRITICALLY DRY FUELS...LOW RELATIVE HUMIDITY...AND DUSTY SOUTHWEST WINDS...FOR FIRE WEATHER ZONES 277 AND 289... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM NOON TO 8 PM MDT MONDAY. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. * AFFECTED AREA...FIRE WEATHER ZONE 277. FIRE WEATHER ZONE 278. FIRE WEATHER ZONE 279. * WIND...WEST TO SOUTHWEST 15 TO 20 MPH GUSTING 25 TO 30 MPH. * HUMIDITY...AS LOW AS 12 PERCENT. * THUNDERSTORMS...AN ISOLATED DRY THUNDERSTORM MAY BE POSSIBLE ACROSS EASTERN ZONE 289. * IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. OUTDOOR BURNING IS NOT RECOMMENDED. && PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW....OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES CAN CONTRIBUTE TO EXTREME FIRE BEHAVIOR. && $$
4 follow-up statements
870 WWUS85 KRIW 080328 RFWRIW URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 928 PM MDT SUN AUG 7 2016 ...CRITICAL FIRE WEATHER CONDITIONS EXPECTED ACROSS PORTIONS OF SOUTHWESTERN AND CENTRAL WYOMING MONDAY...MOST OF THE WESTERN TWO THIRDS OF WYOMING ON TUESDAY... .A VERY DRY AIRMASS COMBINED WITH GUSTY SOUTHWEST WIND WILL PUSH ACROSS PORTIONS OF OF SOUTHWESTERN AND CENTRAL WYOMING MONDAY...THEN ALL OF WYOMING ON TUESDAY...BRINGING CRITICAL FIRE WEATHER CONDITIONS THROUGH THE AFTERNOON AND EARLY EVENING FOR ZONES 277 AND 289 MONDAY...AND MOST OF THE WESTERN TWO THIRDS OF WYOMING ON TUESDAY. WYZ277-289-080900- /O.NEW.KRIW.FW.A.0014.160809T1800Z-160810T0300Z/ /O.CON.KRIW.FW.W.0018.160808T1800Z-160809T0200Z/ LINCOLN AND UINTA COUNTIES/LOWER ELEVATIONS- GRANITE/GREEN/FERRIS/RATTLESNAKE MOUNTAINS- 928 PM MDT SUN AUG 7 2016 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TO 8 PM MDT MONDAY FOR FIRE WEATHER ZONES 277 AND 289... ...FIRE WEATHER WATCH IN EFFECT FROM TUESDAY AFTERNOON THROUGH TUESDAY EVENING FOR FIRE WEATHER ZONES 277 AND 289... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A FIRE WEATHER WATCH...WHICH IS IN EFFECT FROM TUESDAY AFTERNOON THROUGH TUESDAY EVENING. * AFFECTED AREA...FIRE WEATHER ZONES 277 AND 278. * WIND...WEST TO SOUTHWEST 15 TO 20 MPH GUSTING 25 TO 30 MPH MONDAY...SOUTHWEST 20 TO 25 GUSTING 30 TO 35 MPH TUESDAY. * HUMIDITY...AS LOW AS 10 PERCENT. * THUNDERSTORMS...AN ISOLATED DRY THUNDERSTORM MAY BE POSSIBLE ACROSS EASTERN ZONE 289 MONDAY. * 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. A FIRE WEATHER WATCH MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE FORECAST TO OCCUR. LISTEN FOR LATER FORECASTS AND POSSIBLE RED FLAG WARNINGS. && $$ WYZ140-275-276-278>283-285>288-300-414>416-080900- /O.NEW.KRIW.FW.A.0014.160809T1800Z-160810T0300Z/ YELLOWSTONE NATIONAL PARK-NORTH BIG HORN BASIN/WORLAND BLM- CODY FOOTHILLS-UPPER GREEN RIVER BASIN/ROCK SPRINGS BLM- SWEETWATER COUNTY/ROCK SPRINGS BLM/FLAMING GORGE NRA- NATRONA COUNTY/CASPER BLM-JOHNSON COUNTY/CASPER BLM- SOUTH BIG HORN BASIN/WORLAND BLM- UPPER WIND RIVER BASIN/WIND RIVER BASIN-SOUTH BIGHORN MOUNTAINS- ABSAROKA MOUNTAINS/NORTH SHOSHONE NF-OWL CREEK MOUNTAINS- EAST WIND RIVER MOUNTAINS/SOUTH SHOSHONE NF-CASPER MOUNTAIN- SALT AND WYOMING RANGES/WEST ZONE BRIDGER TETON NF- NORTH ZONE BRIDGER TETON NF AND GRAND TETON NP- WEST WIND RIVER MOUNTAINS/EAST ZONE BRIDGER TETON NF- 928 PM MDT SUN AUG 7 2016 ...FIRE WEATHER WATCH IN EFFECT FROM TUESDAY AFTERNOON THROUGH TUESDAY EVENING FOR CRITICALLY DRY FUELS...GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 140... 275...276...278...279...280...281...282...283...285...286...287... 288...300...414...415 AND 416... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A FIRE WEATHER WATCH...WHICH IS IN EFFECT FROM TUESDAY AFTERNOON THROUGH TUESDAY EVENING. * AFFECTED AREA...MOST OF THE WESTERN TWO THIRDS OF WYOMING. * WIND...SOUTHWEST 15 TO 25 GUSTING 25 TO 35 MPH. * HUMIDITY...AS LOW AS 10 PERCENT. * THUNDERSTORMS...ISOLATED MORNING THUNDER MAINLY ACROSS NORTHWEST WYOMING. * IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. OUTDOOR BURNING IS NOT RECOMMENDED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FIRE WEATHER WATCH MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE FORECAST TO OCCUR. LISTEN FOR LATER FORECASTS AND POSSIBLE RED FLAG WARNINGS. && $$
170 WWUS85 KRIW 080707 RFWRIW URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 107 AM MDT MON AUG 8 2016 ...CRITICAL FIRE WEATHER CONDITIONS EXPECTED ACROSS PORTIONS OF SOUTHWESTERN AND CENTRAL WYOMING TODAY...MOST OF THE WESTERN TWO THIRDS OF WYOMING ON TUESDAY... .A VERY DRY AIRMASS COMBINED WITH GUSTY SOUTHWEST WIND WILL PUSH ACROSS PORTIONS OF OF SOUTHWESTERN AND CENTRAL WYOMING BEGINNING TODAY...THEN ALL OF WYOMING ON TUESDAY...BRINGING CRITICAL FIRE WEATHER CONDITIONS THROUGH THE AFTERNOON AND EARLY EVENING FOR ZONES 277 AND 289 MONDAY...AND MOST OF THE WESTERN TWO THIRDS OF WYOMING ON TUESDAY. WYZ277-289-082200- /O.CON.KRIW.FW.W.0018.160808T1800Z-160809T0200Z/ /O.CON.KRIW.FW.A.0014.160809T1800Z-160810T0300Z/ LINCOLN AND UINTA COUNTIES/LOWER ELEVATIONS- GRANITE/GREEN/FERRIS/RATTLESNAKE MOUNTAINS- 107 AM MDT MON AUG 8 2016 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 8 PM MDT THIS EVENING FOR FIRE WEATHER ZONES 277 AND 289... ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM TUESDAY AFTERNOON THROUGH TUESDAY EVENING FOR FIRE WEATHER ZONES 277 AND 289... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A FIRE WEATHER WATCH...WHICH IS IN EFFECT FROM TUESDAY AFTERNOON THROUGH TUESDAY EVENING. * AFFECTED AREA...FIRE WEATHER ZONES 277 AND 278. * WIND...WEST TO SOUTHWEST 15 TO 20 MPH GUSTING 25 TO 30 MPH TODAY...SOUTHWEST 20 TO 25 GUSTING 30 TO 35 MPH TUESDAY. * HUMIDITY...AS LOW AS 10 PERCENT. * THUNDERSTORMS...AN ISOLATED DRY THUNDERSTORM MAY BE POSSIBLE ACROSS EASTERN ZONE 289 TODAY. * 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. A FIRE WEATHER WATCH MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE FORECAST TO OCCUR. LISTEN FOR LATER FORECASTS AND POSSIBLE RED FLAG WARNINGS. && $$ WYZ140-275-276-278>283-285>288-300-414>416-082200- /O.CON.KRIW.FW.A.0014.160809T1800Z-160810T0300Z/ YELLOWSTONE NATIONAL PARK-NORTH BIG HORN BASIN/WORLAND BLM- CODY FOOTHILLS-UPPER GREEN RIVER BASIN/ROCK SPRINGS BLM- SWEETWATER COUNTY/ROCK SPRINGS BLM/FLAMING GORGE NRA- NATRONA COUNTY/CASPER BLM-JOHNSON COUNTY/CASPER BLM- SOUTH BIG HORN BASIN/WORLAND BLM- UPPER WIND RIVER BASIN/WIND RIVER BASIN-SOUTH BIGHORN MOUNTAINS- ABSAROKA MOUNTAINS/NORTH SHOSHONE NF-OWL CREEK MOUNTAINS- EAST WIND RIVER MOUNTAINS/SOUTH SHOSHONE NF-CASPER MOUNTAIN- SALT AND WYOMING RANGES/WEST ZONE BRIDGER TETON NF- NORTH ZONE BRIDGER TETON NF AND GRAND TETON NP- WEST WIND RIVER MOUNTAINS/EAST ZONE BRIDGER TETON NF- 107 AM MDT MON AUG 8 2016 ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM TUESDAY AFTERNOON THROUGH TUESDAY EVENING FOR CRITICALLY DRY FUELS...GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 140... 275... 276...278...279...280...281...282...283...285...286...287... 288...300...414...415 AND 416... * AFFECTED AREA...MOST OF THE WESTERN TWO THIRDS OF WYOMING. * WIND...SOUTHWEST 15 TO 25 GUSTING 25 TO 35 MPH. * HUMIDITY...AS LOW AS 10 PERCENT. * THUNDERSTORMS...ISOLATED MORNING THUNDER MAINLY ACROSS NORTHWEST WYOMING. * IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. OUTDOOR BURNING IS NOT RECOMMENDED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FIRE WEATHER WATCH MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE FORECAST TO OCCUR. LISTEN FOR LATER FORECASTS AND POSSIBLE RED FLAG WARNINGS. && $$
198 WWUS85 KRIW 081220 CCA RFWRIW URGENT - FIRE WEATHER MESSAGE...CORRECTED NATIONAL WEATHER SERVICE RIVERTON WY 620 AM MDT MON AUG 8 2016 ...CRITICAL FIRE WEATHER CONDITIONS EXPECTED ACROSS PORTIONS OF SOUTHWESTERN AND CENTRAL WYOMING TODAY...MOST OF THE WESTERN TWO THIRDS OF WYOMING ON TUESDAY... .A VERY DRY AIRMASS COMBINED WITH GUSTY SOUTHWEST WIND WILL PUSH ACROSS PORTIONS OF OF SOUTHWESTERN AND CENTRAL WYOMING BEGINNING TODAY...THEN ALL OF WYOMING ON TUESDAY...BRINGING CRITICAL FIRE WEATHER CONDITIONS THROUGH THE AFTERNOON AND EARLY EVENING FOR ZONES 277 AND 289 MONDAY...AND MOST OF THE WESTERN TWO THIRDS OF WYOMING ON TUESDAY. WYZ277-289-090030- /O.COR.KRIW.FW.W.0018.160808T1800Z-160809T0200Z/ /O.COR.KRIW.FW.A.0014.160809T1800Z-160810T0300Z/ LINCOLN AND UINTA COUNTIES/LOWER ELEVATIONS- GRANITE/GREEN/FERRIS/RATTLESNAKE MOUNTAINS- 620 AM MDT MON AUG 8 2016 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 8 PM MDT THIS EVENING FOR FIRE WEATHER ZONES 277 AND 289... ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM TUESDAY AFTERNOON THROUGH TUESDAY EVENING FOR FIRE WEATHER ZONES 277 AND 289... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A FIRE WEATHER WATCH...WHICH IS IN EFFECT FROM TUESDAY AFTERNOON THROUGH TUESDAY EVENING. * AFFECTED AREA...FIRE WEATHER ZONES 277 AND 289. * WIND...WEST TO SOUTHWEST 15 TO 20 MPH GUSTING 25 TO 30 MPH TODAY...SOUTHWEST 20 TO 25 GUSTING 30 TO 35 MPH TUESDAY. * HUMIDITY...AS LOW AS 10 PERCENT. * THUNDERSTORMS...AN ISOLATED DRY THUNDERSTORM MAY BE POSSIBLE ACROSS EASTERN ZONE 289 TODAY. * 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. && $$ WYZ140-275-276-278>283-285>288-300-414>416-090030- /O.CON.KRIW.FW.A.0014.160809T1800Z-160810T0300Z/ YELLOWSTONE NATIONAL PARK-NORTH BIG HORN BASIN/WORLAND BLM- CODY FOOTHILLS-UPPER GREEN RIVER BASIN/ROCK SPRINGS BLM- SWEETWATER COUNTY/ROCK SPRINGS BLM/FLAMING GORGE NRA- NATRONA COUNTY/CASPER BLM-JOHNSON COUNTY/CASPER BLM- SOUTH BIG HORN BASIN/WORLAND BLM- UPPER WIND RIVER BASIN/WIND RIVER BASIN-SOUTH BIGHORN MOUNTAINS- ABSAROKA MOUNTAINS/NORTH SHOSHONE NF-OWL CREEK MOUNTAINS- EAST WIND RIVER MOUNTAINS/SOUTH SHOSHONE NF-CASPER MOUNTAIN- SALT AND WYOMING RANGES/WEST ZONE BRIDGER TETON NF- NORTH ZONE BRIDGER TETON NF AND GRAND TETON NP- WEST WIND RIVER MOUNTAINS/EAST ZONE BRIDGER TETON NF- 620 AM MDT MON AUG 8 2016 ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM TUESDAY AFTERNOON THROUGH TUESDAY EVENING FOR CRITICALLY DRY FUELS...GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 140... 275... 276...278...279...280...281...282...283...285...286...287... 288...300...414...415 AND 416... * AFFECTED AREA...MOST OF THE WESTERN TWO THIRDS OF WYOMING. * WIND...SOUTHWEST 15 TO 25 GUSTING 25 TO 35 MPH. * HUMIDITY...AS LOW AS 10 PERCENT. * THUNDERSTORMS...ISOLATED MORNING THUNDER MAINLY ACROSS NORTHWEST WYOMING. * IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. OUTDOOR BURNING IS NOT RECOMMENDED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FIRE WEATHER WATCH MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE FORECAST TO OCCUR. LISTEN FOR LATER FORECASTS AND POSSIBLE RED FLAG WARNINGS. && $$
468 WWUS85 KRIW 081512 RFWRIW URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 912 AM MDT MON AUG 8 2016 ...CRITICAL FIRE WEATHER CONDITIONS EXPECTED ACROSS PORTIONS OF SOUTHWESTERN AND CENTRAL WYOMING TODAY...MOST OF THE WESTERN TWO THIRDS OF WYOMING ON TUESDAY... .A VERY DRY AIRMASS COMBINED WITH GUSTY SOUTHWEST WIND WILL PUSH ACROSS PORTIONS OF OF SOUTHWESTERN AND CENTRAL WYOMING BEGINNING TODAY...THEN ALL OF WYOMING ON TUESDAY...BRINGING CRITICAL FIRE WEATHER CONDITIONS THROUGH THE AFTERNOON AND EARLY EVENING FOR ZONES 277...279...280...289 AND 300 TODAY...AND MOST OF THE WESTERN TWO THIRDS OF WYOMING ON TUESDAY. WYZ280-300-090200- /O.EXB.KRIW.FW.W.0018.160808T1900Z-160809T0200Z/ /O.CON.KRIW.FW.A.0014.160809T1800Z-160810T0300Z/ NATRONA COUNTY/CASPER BLM-CASPER MOUNTAIN- 912 AM MDT MON AUG 8 2016 ...RED FLAG WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO 8 PM MDT THIS EVENING FOR FIRE WEATHER ZONES 277 AND 289... ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM TUESDAY AFTERNOON THROUGH TUESDAY EVENING FOR CRITICALLY DRY FUELS...GUSTY WINDS AND LOW RELATIVE HUMIDITY... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM 1 PM THIS AFTERNOON TO 8 PM MDT THIS EVENING. * AFFECTED AREA...NATRONA COUNTY. * WIND...SOUTHWEST 15 TO 20 GUSTING 25 TO 35 MPH. * HUMIDITY...8 TO 12 PERCENT. * THUNDERSTORMS...ISOLATED DRY THUNDERSTORMS. * HAINES INDEX...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 STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES CAN CONTRIBUTE TO EXTREME FIRE BEHAVIOR. && $$ WYZ279-090200- /O.EXA.KRIW.FW.W.0018.160808T1800Z-160809T0200Z/ /O.CON.KRIW.FW.A.0014.160809T1800Z-160810T0300Z/ SWEETWATER COUNTY/ROCK SPRINGS BLM/FLAMING GORGE NRA- 912 AM MDT MON AUG 8 2016 ...RED FLAG WARNING IN EFFECT UNTIL 8 PM MDT THIS EVENING FOR FIRE WEATHER ZONES 279... ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM TUESDAY AFTERNOON THROUGH TUESDAY EVENING FOR CRITICALLY DRY FUELS...GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 279... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT UNTIL 8 PM MDT THIS EVENING. * AFFECTED AREA...MOST OF THE WESTERN TWO THIRDS OF WYOMING. * WIND...SOUTHWEST 15 TO 20 GUSTING 25 TO 35 MPH. * HUMIDITY...AS LOW AS 10 PERCENT. * HAINES INDEX...5 TO 6. * IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. OUTDOOR BURNING IS NOT RECOMMENDED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW....OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES CAN CONTRIBUTE TO EXTREME FIRE BEHAVIOR. && $$ WYZ277-289-090200- /O.CON.KRIW.FW.W.0018.160808T1800Z-160809T0200Z/ /O.CON.KRIW.FW.A.0014.160809T1800Z-160810T0300Z/ LINCOLN AND UINTA COUNTIES/LOWER ELEVATIONS- GRANITE/GREEN/FERRIS/RATTLESNAKE MOUNTAINS- 912 AM MDT MON AUG 8 2016 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS EVENING FOR FIRE WEATHER ZONES 277 AND 289... ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM TUESDAY AFTERNOON THROUGH TUESDAY EVENING FOR FIRE WEATHER ZONES 277 AND 289... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A FIRE WEATHER WATCH...WHICH IS IN EFFECT FROM TUESDAY AFTERNOON THROUGH TUESDAY EVENING. * AFFECTED AREA...FIRE WEATHER ZONES 277 AND 289. * WIND...WEST TO SOUTHWEST 15 TO 20 MPH GUSTING 25 TO 30 MPH TODAY...SOUTHWEST 20 TO 25 GUSTING 30 TO 35 MPH TUESDAY. * HUMIDITY...AS LOW AS 10 PERCENT. * HAINES INDEX...5 TO 6. * THUNDERSTORMS...AN ISOLATED DRY THUNDERSTORM MAY BE POSSIBLE ACROSS EASTERN ZONE 289 TODAY. * 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. && $$ WYZ140-275-276-278-281>283-285>288-414>416-090200- /O.CON.KRIW.FW.A.0014.160809T1800Z-160810T0300Z/ YELLOWSTONE NATIONAL PARK-NORTH BIG HORN BASIN/WORLAND BLM- CODY FOOTHILLS-UPPER GREEN RIVER BASIN/ROCK SPRINGS BLM- JOHNSON COUNTY/CASPER BLM-SOUTH BIG HORN BASIN/WORLAND BLM- UPPER WIND RIVER BASIN/WIND RIVER BASIN-SOUTH BIGHORN MOUNTAINS- ABSAROKA MOUNTAINS/NORTH SHOSHONE NF-OWL CREEK MOUNTAINS- EAST WIND RIVER MOUNTAINS/SOUTH SHOSHONE NF- SALT AND WYOMING RANGES/WEST ZONE BRIDGER TETON NF- NORTH ZONE BRIDGER TETON NF AND GRAND TETON NP- WEST WIND RIVER MOUNTAINS/EAST ZONE BRIDGER TETON NF- 912 AM MDT MON AUG 8 2016 ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM TUESDAY AFTERNOON THROUGH TUESDAY EVENING FOR CRITICALLY DRY FUELS...GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 140... 275... 276...278...279...280...281...282...283...285...286...287... 288...300...414...415 AND 416... * AFFECTED AREA...MOST OF THE WESTERN TWO THIRDS OF WYOMING. * WIND...SOUTHWEST 15 TO 25 GUSTING 25 TO 35 MPH. * HUMIDITY...AS LOW AS 10 PERCENT. * THUNDERSTORMS...ISOLATED MORNING THUNDER MAINLY ACROSS NORTHWEST WYOMING. * IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. OUTDOOR BURNING IS NOT RECOMMENDED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FIRE WEATHER WATCH MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE FORECAST TO OCCUR. LISTEN FOR LATER FORECASTS AND POSSIBLE RED FLAG WARNINGS. && $$ TEAM RIVERTON
What forecasters said that day
The local office's own words before this red flag warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Riverton, WY wrote its last area forecast discussion before this red flag warning went out at Aug 7, 1:54 PM MDT, 6 hours 58 minutes earlier.
Area forecast discussion, Aug 7, 1:54 PM MDT, 6 hours 58 minutes before
Area Forecast Discussion National Weather Service Riverton WY 154 PM MDT SUN AUG 7 2016 .Short Term...Tonight Through Monday A strong pacific low pressure trough will bring widespread showers and thunderstorms across the west with scattered showers and thunderstorms east of the Continental Divide through tonight. Local heavy rain...large hail and strong wind gusts are expected. Areas of fog will develop in the valleys along rivers and lakes... especially in the west...late tonight and Monday morning. Clouds will decrease through the morning. Isolated showers and thunderstorms are expected mainly over the mountains Monday afternoon and early evening. Windy conditions with sharply lower relative humidity is expected monday afternoon and evening with potential critical fire weather conditions in fire weather zones 277 278 279 283 and 289. .Long Term...Monday night Through Sunday Monday night will see clearing as dry air moves in across the west...south and central areas. Tuesday will be dry...windy and warmer continuing through Wednesday. showers and thunderstorms will move up from the south late Wednesday afternoon and evening continuing through Thursday and Thursday evening. A high pressure ridge will build up from the great basin into the northern Rockies Friday through Sunday with dry and warmer conditions expected. && .Aviation.../00Z Issuance/ Scattered showers and thunderstorms will prevail over the west through this evening...more numerous in the mountains. East of the divide...storms will be more widely scattered except near the foothill locations. Some storms will be quite strong with hail..heavy rain...frequent lightning and brief heavy rain...especially along and west of the divide through this evening. A few showers or isolated thunderstorms will linger during the overnight hours.Monday will be drier with just isolated showers and thunderstorms. && .Fire Weather... ...a fire weather watch is in effect from monday afternoon through Monday evening for zones 277 278 279 283 and 289... A strong pacific low pressure trough will bring widespread showers and thunderstorms across the west with scattered showers and thunderstorms east of the Continental Divide through tonight. Local heavy rain...large hail and strong wind gusts are expected. Areas of fog will develop in the valleys late tonight and Monday morning. Clouds will decrease through the morning. Isolated showers and thunderstorms are expected mainly over the mountains Monday afternoon and early evening. Windy conditions with sharply lower relative humidity is expected monday afternoon and evening with potential critical fire weather conditions in zones 277 278 279 283 and 289. Dry and windy conditions are expected Tuesday with warmer temperatures. && .RIW Watches/Warnings/Advisories... Fire Weather Watch from Monday afternoon through Monday evening for WYZ277>279-283-289. && SHORT TERM...C.Baker LONG TERM...C.Baker AVIATION...Skrbac FIRE WEATHER...C.Baker
Hazardous weather outlook, Aug 7, 2:48 AM MDT, 18 hours 4 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE RIVERTON WY 248 AM MDT SUN AUG 7 2016 WYZ001>020-022>030-081100- YELLOWSTONE NATIONAL PARK-ABSAROKA MOUNTAINS-CODY FOOTHILLS- NORTH BIG HORN BASIN-SOUTHWEST BIG HORN BASIN- SOUTHEAST BIG HORN BASIN-OWL CREEK AND BRIDGER MOUNTAINS- BIGHORN MOUNTAINS WEST-BIGHORN MOUNTAINS SOUTHEAST- NORTHEAST JOHNSON COUNTY-SOUTHEAST JOHNSON COUNTY- TETON AND GROS VENTRE MOUNTAINS-JACKSON HOLE- WIND RIVER MOUNTAINS WEST-WIND RIVER MOUNTAINS EAST- UPPER WIND RIVER BASIN-WIND RIVER BASIN-LANDER FOOTHILLS- GREEN MOUNTAINS AND RATTLESNAKE RANGE- NATRONA COUNTY LOWER ELEVATIONS-CASPER MOUNTAIN-STAR VALLEY- SALT RIVER AND WYOMING RANGES-UPPER GREEN RIVER BASIN FOOTHILLS- UPPER GREEN RIVER BASIN-SOUTH LINCOLN COUNTY- ROCK SPRINGS AND GREEN RIVER-FLAMING GORGE-EAST SWEETWATER COUNTY- 248 AM MDT SUN AUG 7 2016 ...FIRE WEATHER WATCH FOR PORTIONS OF SOUTHERN AND CENTRAL WYOMING MONDAY AFTERNOON AND EARLY EVENING... THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN AND CENTRAL WYOMING. .DAY ONE...TODAY AND TONIGHT ISOLATED TO SCATTERED AFTERNOON AND EVENING THUNDERSTORMS. SOME STORMS MAY PRODUCE GUSTY WINDS IN EXCESS OF 45 MPH. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY MONDAY THROUGH WEDNESDAY...VERY DRY...WARM AND BREEZY CONDITIONS ACROSS SOUTH AND CENTRAL WYOMING WILL RESULT IN ELEVATED TO CRITICAL FIRE WEATHER CONDITIONS. ISOLATED THUNDERSTORMS MONDAY AND WEDNESDAY WITH SOME STRONG WIND GUSTS POSSIBLE. THURSDAY...ISOLATED TO SCATTERED THUNDERSTORMS. SOME STRONG THUNDERSTORMS POSSIBLE. .SPOTTER INFORMATION STATEMENT... SPOTTER ARE URGED TO REPORT HAIL AND WIND GUSTS OVER 45 MPH. THANK YOU.
In the hours before
Special weather statement, Aug 7, 5:44 PM MDT, 3 hours 8 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RIVERTON WY
544 PM MDT SUN AUG 7 2016
WYZ012-013-023-080015-
TETON AND GROS VENTRE MOUNTAINS-STAR VALLEY-JACKSON HOLE-
544 PM MDT SUN AUG 7 2016
...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN TETON AND
NORTHWESTERN LINCOLN COUNTIES UNTIL 615 PM MDT...
AT 543 PM MDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 8
MILES NORTHEAST OF PALISADES RESERVOIR...MOVING EAST AT 30 MPH.
DIME SIZE HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH
THIS STORM.
THIS STRONG THUNDERSTORM WILL BE NEAR...
JACKSON...HOBACK AND RAFTER J RANCH AROUND 610 PM MDT.
LAT...LON 4345 11104 4351 11098 4356 11076 4324 11059
4324 11076 4322 11076 4321 11105
TIME...MOT...LOC 2343Z 254DEG 25KT 4332 11100
13Special weather statement, Aug 7, 6:08 PM MDT, 2 hours 44 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE RIVERTON WY 608 PM MDT SUN AUG 7 2016 WYZ012>016-023>025-080130- TETON AND GROS VENTRE MOUNTAINS-JACKSON HOLE- WIND RIVER MOUNTAINS WEST-WIND RIVER MOUNTAINS EAST- UPPER WIND RIVER BASIN-STAR VALLEY-SALT RIVER AND WYOMING RANGES- UPPER GREEN RIVER BASIN FOOTHILLS- INCLUDING THE CITIES OF...JACKSON...DUBOIS...AFTON...ALPINE... STAR VALLEY RANCH...THAYNE...PINEDALE 608 PM MDT SUN AUG 7 2016 SCATTERED THUNDERSTORMS WILL OCCUR OVER THE AREA UNTIL 730 PM. A FEW STORMS MAY BE STRONG WITH SMALL HAIL...WIND GUSTS TO 35 MPH... BRIEF HEAVY RAIN...AND FREQUENT LIGHTNING. BE PREPARED FOR STORMS AND SEEK SAFE SHELTER INDOORS WHEN STORMS APPROACH YOUR LOCATION. AR
Special weather statement, Aug 7, 6:18 PM MDT, 2 hours 34 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE RIVERTON WY 618 PM MDT SUN AUG 7 2016 WYZ009>011-016>020-022-080200- BIGHORN MOUNTAINS SOUTHEAST-NORTHEAST JOHNSON COUNTY- SOUTHEAST JOHNSON COUNTY-UPPER WIND RIVER BASIN-WIND RIVER BASIN- LANDER FOOTHILLS-GREEN MOUNTAINS AND RATTLESNAKE RANGE- NATRONA COUNTY LOWER ELEVATIONS-CASPER MOUNTAIN- INCLUDING THE CITIES OF...BUFFALO...KAYCEE...DUBOIS...RIVERTON... SHOSHONI...LANDER...JEFFREY CITY...CASPER 618 PM MDT SUN AUG 7 2016 ISOLATED TO SCATTERED SHOWERS AND THUNDERSTORMS CONTINUE THIS EVENING ACROSS PORTIONS OF CENTRAL AND NORTHERN WYOMING...INCLUDING FREMONT...NATRONA...AND JOHNSON COUNTIES. THESE SHOWERS AND STORMS ARE MOVING NORTHEAST AT 40 MPH AND WILL BE ABLE TO PRODUCE WIND GUSTS OF 45 TO 55 MPH AT TIMES UNDER STRONGER CORES...IN ADDITION TO SMALL HAIL AND BRIEF HEAVY RAIN. SOME WIND GUSTS MAY OCCUR WELL AWAY FROM THE STORMS THEMSELVES. THESE SHOWERS AND STORMS SHOULD DECREASE IN COVERAGE AND INTENSITY AFTER 8 PM.
Special weather statement, Aug 7, 6:43 PM MDT, 2 hours 9 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE RIVERTON WY 643 PM MDT SUN AUG 7 2016 WYZ009>011-016>020-022-080200- BIGHORN MOUNTAINS SOUTHEAST-NORTHEAST JOHNSON COUNTY- SOUTHEAST JOHNSON COUNTY-UPPER WIND RIVER BASIN-WIND RIVER BASIN- LANDER FOOTHILLS-GREEN MOUNTAINS AND RATTLESNAKE RANGE- NATRONA COUNTY LOWER ELEVATIONS-CASPER MOUNTAIN- INCLUDING THE CITIES OF...BUFFALO...KAYCEE...DUBOIS...RIVERTON... SHOSHONI...LANDER...JEFFREY CITY...CASPER 643 PM MDT SUN AUG 7 2016 ISOLATED TO SCATTERED SHOWERS AND THUNDERSTORMS CONTINUE THIS EVENING ACROSS PORTIONS OF CENTRAL AND NORTHERN WYOMING...INCLUDING FREMONT...NATRONA...AND JOHNSON COUNTIES. THESE SHOWERS AND STORMS ARE MOVING NORTHEAST AT 40 MPH AND WILL BE ABLE TO PRODUCE WIND GUSTS OF 45 TO 55 MPH...WITH LOCALIZED GUSTS GREATER THAN 60 MPH AT TIMES...UNDER STRONGER CORES...IN ADDITION TO SMALL HAIL AND BRIEF HEAVY RAIN. SOME WIND GUSTS MAY OCCUR WELL AWAY FROM THE STORMS THEMSELVES. THESE SHOWERS AND STORMS SHOULD DECREASE IN COVERAGE AND INTENSITY AFTER 8 PM.
Special weather statement, Aug 7, 7:18 PM MDT, 1 hour 34 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE RIVERTON WY 718 PM MDT SUN AUG 7 2016 WYZ014>016-023>025-080330- WIND RIVER MOUNTAINS WEST-WIND RIVER MOUNTAINS EAST- UPPER WIND RIVER BASIN-STAR VALLEY-SALT RIVER AND WYOMING RANGES- UPPER GREEN RIVER BASIN FOOTHILLS- INCLUDING THE CITIES OF...DUBOIS...AFTON...ALPINE... STAR VALLEY RANCH...THAYNE...PINEDALE 718 PM MDT SUN AUG 7 2016 SCATTERED THUNDERSTORMS WILL OCCUR THROUGH 930 PM ACROSS THESE LOCATIONS. A FEW STORMS MAY BE STRONG WITH SMALL HAIL...WIND GUSTS TO 40 MPH... BRIEF HEAVY RAIN...AND FREQUENT LIGHTNING. BE PREPARED FOR STORMS AND SEEK SAFE SHELTER INDOORS WHEN STORMS APPROACH YOUR LOCATION. WYZ028>030-080330- ROCK SPRINGS AND GREEN RIVER-FLAMING GORGE-EAST SWEETWATER COUNTY- INCLUDING THE CITIES OF...ROCK SPRINGS...GREEN RIVER...WAMSUTTER 718 PM MDT SUN AUG 7 2016 SCATTERED THUNDERSTORMS WILL OCCUR OVER THE AREA UNTIL 1000 PM. A FEW STORMS MAY BE STRONG WITH SMALL HAIL...WIND GUSTS TO 45 MPH... BRIEF HEAVY RAIN...AND FREQUENT LIGHTNING. BE PREPARED FOR STORMS AND SEEK SAFE SHELTER INDOORS WHEN STORMS APPROACH YOUR LOCATION. AR
Special weather statement, Aug 7, 7:48 PM MDT, 1 hour 4 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE RIVERTON WY 748 PM MDT SUN AUG 7 2016 WYZ016>020-022-080300- UPPER WIND RIVER BASIN-WIND RIVER BASIN-LANDER FOOTHILLS- GREEN MOUNTAINS AND RATTLESNAKE RANGE- NATRONA COUNTY LOWER ELEVATIONS-CASPER MOUNTAIN- INCLUDING THE CITIES OF...DUBOIS...RIVERTON...SHOSHONI...LANDER... JEFFREY CITY...CASPER 748 PM MDT SUN AUG 7 2016 WIDELY SCATTERED SHOWERS AND THUNDERSTORMS CONTINUE THIS EVENING ACROSS PORTIONS OF CENTRAL WYOMING...INCLUDING FREMONT AND NATRONA COUNTIES. THESE SHOWERS AND STORMS ARE MOVING NORTHEAST AT 40 MPH AND WILL BE ABLE TO PRODUCE WIND GUSTS OF 45 TO 55 MPH AT TIMES...IN ADDITION TO BRIEF HEAVY RAIN. SOME WIND GUSTS MAY OCCUR WELL AWAY FROM THE STORMS THEMSELVES. THESE SHOWERS AND STORMS SHOULD DECREASE IN COVERAGE AND INTENSITY AFTER 9 PM.
The office that day
Everything else NWS Riverton, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 7, 9:28 PM MDT | Fire Weather Watch | RIW | Big Horn, Fremont, Hot Springs, Johnson, Lincoln, Natrona and 6 more | 24 hr |
| Aug 7, 11:58 PM MDT | Special Weather Statement | RIW | Natrona | 32 min |
| Aug 8, 1:53 PM MDT | Special Weather Statement | RIW | Hot Springs | 37 min |
| Aug 8, 1:59 PM MDT | Special Weather Statement | RIW | Natrona | 31 min |
| Aug 8, 2:04 PM MDT | Special Weather Statement | RIW | 41 min | |
| Aug 8, 2:10 PM MDT | Severe Thunderstorm Warning | RIW | Hot Springs, Washakie | 50 min |
| Aug 8, 3:05 PM MDT | Special Weather Statement | RIW | Washakie | 25 min |
| Aug 8, 3:35 PM MDT | Special Weather Statement | RIW | Washakie | 25 min |
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.