Alert archive / Wyoming / Red Flag Warnings in 2012
Red Flag Warning 32, NWS Riverton, WY
NWS Riverton, WY issued this red flag warning at Sep 14, 2012, 1:50 PM MDT for 9 counties in Wyoming. It took effect at Sep 15, 2012, 10:00 AM MDT. It was in force for 33 hr. 1 report 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
- Sep 14, 2012, 1:50 PM MDT (19:50 UTC)
- In effect from
- Sep 15, 2012, 10:00 AM MDT
- Expired
- Sep 16, 2012, 7:00 PM MDT
- In force
- 33 hr
- Issued by
- NWS Riverton, WY
Counties Fremont County, WY, Hot Springs County, WY, Lincoln County, WY, Natrona County, WY, Park County, WY, Sublette County, WY, Sweetwater County, WY, Teton County, WY, Uinta County, WY
The radar
The Riverton/Lander radar (KRIW), 72 km from the middle of the area, began a volume at 19:55 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 |
|---|---|---|---|
| Sep 16, 2:35 PM MDT | TSTM WND GST 72 | 8 W Thermopolis, WY | SPOTTER REPORT |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Salt Lake City I, UT (KSLC), launched 12:00Z, 7.8 hours before the alert went out and 318 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
- 3278 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 7 m²/s²
- 0-3 km storm-relative helicity
- -9 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
195 WWUS85 KRIW 141950 RFWRIW URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 150 PM MDT FRI SEP 14 2012 ...CRITICAL FIRE WEATHER DAY EXPECTED SATURDAY FOR WESTERN AND PORTIONS OF CENTRAL WYOMING... A WARM AND VERY DRY AIRMASS WILL COMBINE WITH INCREASING WEST WIND AND A HAINES INDEX OF 6 ON SATURDAY TO PRODUCE CRITICAL FIRE WEATHER CONDITIONS ACROSS THE WEST...SOUTH AND OVER TO NATRONA COUNTY. CRITICAL FIRE WEATHER CONDITIONS MAY CONTINUE INTO SUNDAY AHEAD OF AN APPROACHING COLD FRONT. IT WILL BE VERY DRY AND BREEZY AHEAD OF THIS FRONT WITH AN ABRUPT WIND SHIFT TO THE NORTH BEHIND THE FRONT. SOME CENTRAL AND SOUTHERN ZONES MAY CONTINUE WITH ELEVATED FIRE CONCERNS INTO SUNDAY. WYZ140-286-414-415-151200- /O.UPG.KRIW.FW.A.0025.120915T1600Z-120916T0600Z/ /O.NEW.KRIW.FW.W.0032.120915T1600Z-120916T0600Z/ YELLOWSTONE NATIONAL PARK-ABSAROKA MOUNTAINS/NORTH SHOSHONE NF- SALT AND WYOMING RANGES/WEST ZONE BRIDGER TETON NF- NORTH ZONE BRIDGER TETON NF AND GRAND TETON NP- 150 PM MDT FRI SEP 14 2012 ...RED FLAG WARNING IN EFFECT FROM 10 AM SATURDAY TO MIDNIGHT MDT SATURDAY NIGHT FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 140...286...414 AND 415... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A RED FLAG WARNING FOR WIND AND LOW RELATIVE HUMIDITY...WHICH IS IN EFFECT FROM 10 AM SATURDAY TO MIDNIGHT MDT SATURDAY NIGHT. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. * AFFECTED AREA...FIRE WEATHER ZONES 140...286...414 AND 415. * WINDS...WEST 10 TO 20 MPH WITH GUSTS UP TO 30 MPH. * RELATIVE HUMIDITY...AS LOW AS 8 PERCENT. * HAINES INDEX...6. * IMPACTS...VERY LOW RELATIVE HUMIDITY...GUSTY WEST WINDS AND WARM TEMPERATURES...COMBINING WITH VERY DRY FUELS WILL PRODUCE CONDITIONS FOR RAPID FIRE SPREAD. 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 WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ WYZ288-416-151200- /O.UPG.KRIW.FW.A.0025.120915T1600Z-120916T0600Z/ /O.NEW.KRIW.FW.W.0032.120915T1600Z-120916T0600Z/ EAST WIND RIVER MOUNTAINS/SOUTH SHOSHONE NF- WEST WIND RIVER MOUNTAINS/EAST ZONE BRIDGER TETON NF- 150 PM MDT FRI SEP 14 2012 ...RED FLAG WARNING IN EFFECT FROM 10 AM SATURDAY TO MIDNIGHT MDT SATURDAY NIGHT FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 288 AND 416... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A RED FLAG WARNING FOR WIND AND LOW RELATIVE HUMIDITY...WHICH IS IN EFFECT FROM 10 AM SATURDAY TO MIDNIGHT MDT SATURDAY NIGHT. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. * AFFECTED AREA...FIRE WEATHER ZONES 288 AND 416. * WINDS...WEST 15 TO 25 MPH WITH GUSTS UP TO 35 MPH. * RELATIVE HUMIDITY...AS LOW AS 8 PERCENT. * HAINES INDEX...6. * IMPACTS...VERY LOW RELATIVE HUMIDITY...GUSTY WEST WINDS AND WARM TEMPERATURES...COMBINING WITH VERY DRY FUELS WILL PRODUCE CONDITIONS FOR RAPID FIRE SPREAD. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ WYZ278-151200- /O.UPG.KRIW.FW.A.0025.120915T1600Z-120916T0600Z/ /O.NEW.KRIW.FW.W.0032.120915T1600Z-120916T0600Z/ UPPER GREEN RIVER BASIN/ROCK SPRINGS BLM- 150 PM MDT FRI SEP 14 2012 ...RED FLAG WARNING IN EFFECT FROM 10 AM SATURDAY TO MIDNIGHT MDT SATURDAY NIGHT FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 278... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A RED FLAG WARNING FOR WIND AND LOW RELATIVE HUMIDITY...WHICH IS IN EFFECT FROM 10 AM SATURDAY TO MIDNIGHT MDT SATURDAY NIGHT. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. * AFFECTED AREA...FIRE WEATHER ZONE 278. * WINDS...WEST 10 TO 20 MPH WITH GUSTS UP TO 30 MPH. * RELATIVE HUMIDITY...AS LOW AS 9 PERCENT. * HAINES INDEX...6. * IMPACTS...VERY LOW RELATIVE HUMIDITY...GUSTY WEST TO NORTHWEST WINDS AND WARM TEMPERATURES...COMBINING WITH VERY DRY FUELS WILL PRODUCE CONDITIONS FOR RAPID FIRE SPREAD. 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 WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ WYZ277-279-151200- /O.UPG.KRIW.FW.A.0025.120915T1600Z-120916T0600Z/ /O.NEW.KRIW.FW.W.0032.120915T1600Z-120916T0600Z/ LINCOLN AND UINTA COUNTIES/LOWER ELEVATIONS- SWEETWATER COUNTY/ROCK SPRINGS BLM/FLAMING GORGE NRA- 150 PM MDT FRI SEP 14 2012 ...RED FLAG WARNING IN EFFECT FROM 10 AM SATURDAY TO MIDNIGHT MDT SATURDAY NIGHT FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 277 AND 279... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A RED FLAG WARNING FOR WIND AND LOW RELATIVE HUMIDITY...WHICH IS IN EFFECT FROM 10 AM SATURDAY TO MIDNIGHT MDT SATURDAY NIGHT. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. * AFFECTED AREA...FIRE WEATHER ZONES 277 AND 279. * WINDS...WEST 10 TO 20 MPH WITH GUSTS UP TO 30 MPH. * RELATIVE HUMIDITY...AS LOW AS 7 PERCENT. * HAINES INDEX...6. * IMPACTS...VERY LOW RELATIVE HUMIDITY...GUSTY WEST WINDS AND WARM TEMPERATURES...COMBINING WITH VERY DRY FUELS WILL PRODUCE CONDITIONS FOR RAPID FIRE SPREAD. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ WYZ289-151200- /O.UPG.KRIW.FW.A.0025.120915T1600Z-120916T0600Z/ /O.NEW.KRIW.FW.W.0032.120915T1600Z-120916T0600Z/ GRANITE/GREEN/FERRIS/RATTLESNAKE MOUNTAINS- 150 PM MDT FRI SEP 14 2012 ...RED FLAG WARNING IN EFFECT FROM 10 AM SATURDAY TO MIDNIGHT MDT SATURDAY NIGHT FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 289... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A RED FLAG WARNING FOR WIND AND LOW RELATIVE HUMIDITY...WHICH IS IN EFFECT FROM 10 AM SATURDAY TO MIDNIGHT MDT SATURDAY NIGHT. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. * AFFECTED AREA...FIRE WEATHER ZONE 289. * WINDS...WEST 15 TO 20 MPH WITH GUSTS UP TO 35 MPH. * RELATIVE HUMIDITY...AS LOW AS 6 PERCENT. * HAINES INDEX...6. * IMPACTS...VERY LOW RELATIVE HUMIDITY...GUSTY WEST WINDS AND WARM TEMPERATURES...COMBINING WITH VERY DRY FUELS WILL PRODUCE CONDITIONS FOR RAPID FIRE SPREAD. 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 WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ WYZ280-300-151200- /O.UPG.KRIW.FW.A.0025.120915T1600Z-120916T0600Z/ /O.NEW.KRIW.FW.W.0032.120915T1600Z-120916T0600Z/ NATRONA COUNTY/CASPER BLM-CASPER MOUNTAIN- 150 PM MDT FRI SEP 14 2012 ...RED FLAG WARNING IN EFFECT FROM 10 AM SATURDAY TO MIDNIGHT MDT SATURDAY NIGHT FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 280 AND 300... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A RED FLAG WARNING FOR WIND AND LOW RELATIVE HUMIDITY...WHICH IS IN EFFECT FROM 10 AM SATURDAY TO MIDNIGHT MDT SATURDAY NIGHT. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. * AFFECTED AREA...FIRE WEATHER ZONES 280 AND 300. * WINDS...NORTHWEST 10 TO 20 MPH WITH GUSTS UP TO 30 MPH. * RELATIVE HUMIDITY...AS LOW AS 6 PERCENT. * HAINES INDEX...6. * IMPACTS...VERY LOW RELATIVE HUMIDITY...GUSTY WEST TO NORTHWEST WINDS AND WARM TEMPERATURES...COMBINING WITH VERY DRY FUELS WILL PRODUCE CONDITIONS FOR RAPID FIRE SPREAD. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ HTTP://WEATHER.GOV/RIVERTON
4 follow-up statements
695 WWUS85 KRIW 150802 RFWRIW URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 202 AM MDT SAT SEP 15 2012 ...CRITICAL FIRE WEATHER DAY EXPECTED TODAY THROUGH THIS EVENING ACROSS WESTERN AND PORTIONS OF CENTRAL WYOMING... A WARM AND VERY DRY AIRMASS WILL COMBINE WITH INCREASING WEST WIND AND A HAINES INDEX OF 6 ON SATURDAY TO PRODUCE CRITICAL FIRE WEATHER CONDITIONS ACROSS THE WEST...SOUTH AND OVER TO NATRONA COUNTY. CRITICAL FIRE WEATHER CONDITIONS MAY CONTINUE INTO SUNDAY AHEAD OF AN APPROACHING COLD FRONT. IT WILL BE VERY DRY AND BREEZY AHEAD OF THIS FRONT WITH AN ABRUPT WIND SHIFT TO THE NORTH BEHIND THE FRONT. SOME CENTRAL AND SOUTHERN ZONES MAY CONTINUE WITH ELEVATED FIRE CONCERNS INTO SUNDAY. WYZ140-286-414-415-152200- /O.CON.KRIW.FW.W.0032.120915T1600Z-120916T0600Z/ YELLOWSTONE NATIONAL PARK-ABSAROKA MOUNTAINS/NORTH SHOSHONE NF- SALT AND WYOMING RANGES/WEST ZONE BRIDGER TETON NF- NORTH ZONE BRIDGER TETON NF AND GRAND TETON NP- 202 AM MDT SAT SEP 15 2012 ...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM THIS MORNING TO MIDNIGHT MDT TONIGHT FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 140...286...414 AND 415... * AFFECTED AREA...FIRE WEATHER ZONES 140...286...414 AND 415. * WINDS...WEST 10 TO 20 MPH WITH GUSTS UP TO 30 MPH. * RELATIVE HUMIDITY...AS LOW AS 9 PERCENT. * HAINES INDEX...6. * IMPACTS...VERY LOW RELATIVE HUMIDITY...GUSTY WEST WINDS AND WARM TEMPERATURES...COMBINING WITH VERY DRY FUELS WILL PRODUCE CONDITIONS FOR RAPID FIRE SPREAD. 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 WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ WYZ288-416-152200- /O.CON.KRIW.FW.W.0032.120915T1600Z-120916T0600Z/ EAST WIND RIVER MOUNTAINS/SOUTH SHOSHONE NF- WEST WIND RIVER MOUNTAINS/EAST ZONE BRIDGER TETON NF- 202 AM MDT SAT SEP 15 2012 ...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM THIS MORNING TO MIDNIGHT MDT TONIGHT FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 288 AND 416... * AFFECTED AREA...FIRE WEATHER ZONES 288 AND 416. * WINDS...WEST 10 TO 20 MPH WITH GUSTS UP TO 35 MPH. * RELATIVE HUMIDITY...AS LOW AS 8 PERCENT. * HAINES INDEX...6. * IMPACTS...VERY LOW RELATIVE HUMIDITY...GUSTY WEST WINDS AND WARM TEMPERATURES...COMBINING WITH VERY DRY FUELS WILL PRODUCE CONDITIONS FOR RAPID FIRE SPREAD. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ WYZ278-152200- /O.CON.KRIW.FW.W.0032.120915T1600Z-120916T0600Z/ UPPER GREEN RIVER BASIN/ROCK SPRINGS BLM- 202 AM MDT SAT SEP 15 2012 ...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM THIS MORNING TO MIDNIGHT MDT TONIGHT FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 278... * AFFECTED AREA...FIRE WEATHER ZONE 278. * WINDS...WEST 10 TO 20 MPH WITH GUSTS UP TO 30 MPH. * RELATIVE HUMIDITY...AS LOW AS 8 PERCENT. * HAINES INDEX...6. * IMPACTS...VERY LOW RELATIVE HUMIDITY...GUSTY WEST TO NORTHWEST WINDS AND WARM TEMPERATURES...COMBINING WITH VERY DRY FUELS WILL PRODUCE CONDITIONS FOR RAPID FIRE SPREAD. 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 WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ WYZ277-279-152200- /O.CON.KRIW.FW.W.0032.120915T1600Z-120916T0600Z/ LINCOLN AND UINTA COUNTIES/LOWER ELEVATIONS- SWEETWATER COUNTY/ROCK SPRINGS BLM/FLAMING GORGE NRA- 202 AM MDT SAT SEP 15 2012 ...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM THIS MORNING TO MIDNIGHT MDT TONIGHT FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 277 AND 279... * AFFECTED AREA...FIRE WEATHER ZONES 277 AND 279. * WINDS...WEST 10 TO 20 MPH WITH GUSTS UP TO 30 MPH. * RELATIVE HUMIDITY...AS LOW AS 6 PERCENT. * HAINES INDEX...6. * IMPACTS...VERY LOW RELATIVE HUMIDITY...GUSTY WEST WINDS AND WARM TEMPERATURES...COMBINING WITH VERY DRY FUELS WILL PRODUCE CONDITIONS FOR RAPID FIRE SPREAD. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ WYZ289-152200- /O.CON.KRIW.FW.W.0032.120915T1600Z-120916T0600Z/ GRANITE/GREEN/FERRIS/RATTLESNAKE MOUNTAINS- 202 AM MDT SAT SEP 15 2012 ...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM THIS MORNING TO MIDNIGHT MDT TONIGHT FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 289... * AFFECTED AREA...FIRE WEATHER ZONE 289. * WINDS...WEST 15 TO 20 MPH WITH GUSTS UP TO 30 MPH. * RELATIVE HUMIDITY...AS LOW AS 5 PERCENT. * HAINES INDEX...6. * IMPACTS...VERY LOW RELATIVE HUMIDITY...GUSTY WEST WINDS AND WARM TEMPERATURES...COMBINING WITH VERY DRY FUELS WILL PRODUCE CONDITIONS FOR RAPID FIRE SPREAD. 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 WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ WYZ280-300-152200- /O.CON.KRIW.FW.W.0032.120915T1600Z-120916T0600Z/ NATRONA COUNTY/CASPER BLM-CASPER MOUNTAIN- 202 AM MDT SAT SEP 15 2012 ...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM THIS MORNING TO MIDNIGHT MDT TONIGHT FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 280 AND 300... * AFFECTED AREA...FIRE WEATHER ZONES 280 AND 300. * WINDS...NORTHWEST 10 TO 15 MPH WITH GUSTS UP TO 25 MPH. * RELATIVE HUMIDITY...AS LOW AS 5 PERCENT. * HAINES INDEX...6. * IMPACTS...VERY LOW RELATIVE HUMIDITY...GUSTY WEST TO NORTHWEST WINDS AND WARM TEMPERATURES...COMBINING WITH VERY DRY FUELS WILL PRODUCE CONDITIONS FOR RAPID FIRE SPREAD. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ HTTP://WEATHER.GOV/RIVERTON
671 WWUS85 KRIW 152003 RFWRIW URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 203 PM MDT SAT SEP 15 2012 ...CRITICAL FIRE WEATHER DAY EXPECTED THROUGH THIS EVENING IN WESTERN AND CENTRAL WYOMING...CONTINUING THROUGH 7 PM SUNDAY IN THE SOUTHWEST... A WARM AND VERY DRY AIR MASS WILL COMBINE WITH INCREASING WEST WIND AND A HAINES INDEX OF 6 TO PRODUCE CRITICAL FIRE WEATHER CONDITIONS ACROSS THE WEST...SOUTH AND OVER TO NATRONA COUNTY. CRITICAL FIRE WEATHER CONDITIONS WILL CONTINUE INTO SUNDAY AHEAD OF AN APPROACHING COLD FRONT ACROSS THE SOUTHWEST. VERY DRY AND BREEZY CONDITIONS AHEAD OF THIS FRONT WITH AN ABRUPT WIND SHIFT TO THE NORTH BEHIND THE FRONT WILL IMPACT FIRE WEATHER ZONES 277... 278...279 AND 289 SUNDAY. WYZ278-160600- /O.EXT.KRIW.FW.W.0032.000000T0000Z-120917T0100Z/ UPPER GREEN RIVER BASIN/ROCK SPRINGS BLM- 203 PM MDT SAT SEP 15 2012 ...RED FLAG WARNING NOW IN EFFECT UNTIL 7 PM MDT SUNDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 278... * AFFECTED AREA...FIRE WEATHER ZONE 278. * WINDS...NORTHWEST 10 TO 20 MPH WITH GUSTS UP TO 30 MPH. * RELATIVE HUMIDITY...AS LOW AS 7 PERCENT. * HAINES INDEX...6. * IMPACTS...VERY LOW RELATIVE HUMIDITY...GUSTY WEST TO NORTHWEST WINDS AND WARM TEMPERATURES...COMBINING WITH VERY DRY FUELS WILL PRODUCE CONDITIONS FOR RAPID FIRE SPREAD. 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 WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ WYZ277-279-160600- /O.EXT.KRIW.FW.W.0032.000000T0000Z-120917T0100Z/ LINCOLN AND UINTA COUNTIES/LOWER ELEVATIONS- SWEETWATER COUNTY/ROCK SPRINGS BLM/FLAMING GORGE NRA- 203 PM MDT SAT SEP 15 2012 ...RED FLAG WARNING NOW IN EFFECT UNTIL 7 PM MDT SUNDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 277 AND 279... * AFFECTED AREA...FIRE WEATHER ZONES 277 AND 279. * WINDS...WEST 15 TO 25 MPH WITH GUSTS UP TO 30 MPH. * RELATIVE HUMIDITY...AS LOW AS 6 PERCENT. * HAINES INDEX...6. * IMPACTS...VERY LOW RELATIVE HUMIDITY...GUSTY WEST WINDS AND WARM TEMPERATURES...COMBINING WITH VERY DRY FUELS WILL PRODUCE CONDITIONS FOR RAPID FIRE SPREAD. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ WYZ289-160600- /O.EXT.KRIW.FW.W.0032.000000T0000Z-120917T0100Z/ GRANITE/GREEN/FERRIS/RATTLESNAKE MOUNTAINS- 203 PM MDT SAT SEP 15 2012 ...RED FLAG WARNING NOW IN EFFECT UNTIL 7 PM MDT SUNDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 289... * AFFECTED AREA...FIRE WEATHER ZONE 289. * WINDS...WEST 10 TO 20 MPH WITH GUSTS UP TO 30 MPH. * RELATIVE HUMIDITY...AS LOW AS 5 PERCENT. * HAINES INDEX...6. * IMPACTS...VERY LOW RELATIVE HUMIDITY...GUSTY WEST WINDS AND WARM TEMPERATURES...COMBINING WITH VERY DRY FUELS WILL PRODUCE CONDITIONS FOR RAPID FIRE SPREAD. 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 WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ WYZ140-286-414-415-160600- /O.CON.KRIW.FW.W.0032.000000T0000Z-120916T0600Z/ YELLOWSTONE NATIONAL PARK-ABSAROKA MOUNTAINS/NORTH SHOSHONE NF- SALT AND WYOMING RANGES/WEST ZONE BRIDGER TETON NF- NORTH ZONE BRIDGER TETON NF AND GRAND TETON NP- 203 PM MDT SAT SEP 15 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 140... 286...414 AND 415... * AFFECTED AREA...FIRE WEATHER ZONES 140...286...414 AND 415. * WINDS...WEST 10 TO 20 MPH WITH GUSTS UP TO 30 MPH. * RELATIVE HUMIDITY...AS LOW AS 8 PERCENT. * HAINES INDEX...6. * IMPACTS...VERY LOW RELATIVE HUMIDITY...GUSTY WEST WINDS AND WARM TEMPERATURES...COMBINING WITH VERY DRY FUELS WILL PRODUCE CONDITIONS FOR RAPID FIRE SPREAD. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ WYZ288-416-160600- /O.CON.KRIW.FW.W.0032.000000T0000Z-120916T0600Z/ EAST WIND RIVER MOUNTAINS/SOUTH SHOSHONE NF- WEST WIND RIVER MOUNTAINS/EAST ZONE BRIDGER TETON NF- 203 PM MDT SAT SEP 15 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 288 AND 416... * AFFECTED AREA...FIRE WEATHER ZONES 288 AND 416. * WINDS...WEST 15 TO 20 MPH WITH GUSTS UP TO 35 MPH. * RELATIVE HUMIDITY...AS LOW AS 8 PERCENT. * HAINES INDEX...6. * IMPACTS...VERY LOW RELATIVE HUMIDITY...GUSTY WEST WINDS AND WARM TEMPERATURES...COMBINING WITH VERY DRY FUELS WILL PRODUCE CONDITIONS FOR RAPID FIRE SPREAD. 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 WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ WYZ280-300-160600- /O.CON.KRIW.FW.W.0032.000000T0000Z-120916T0600Z/ NATRONA COUNTY/CASPER BLM-CASPER MOUNTAIN- 203 PM MDT SAT SEP 15 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 280 AND 300... * AFFECTED AREA...FIRE WEATHER ZONES 280 AND 300. * WINDS...WEST 10 TO 15 MPH WITH GUSTS UP TO 20 MPH. * RELATIVE HUMIDITY...AS LOW AS 5 PERCENT. * HAINES INDEX...6. * IMPACTS...VERY LOW RELATIVE HUMIDITY...GUSTY WEST TO NORTHWEST WINDS AND WARM TEMPERATURES...COMBINING WITH VERY DRY FUELS WILL PRODUCE CONDITIONS FOR RAPID FIRE SPREAD. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ HTTP://WEATHER.GOV/RIVERTON
955 WWUS85 KRIW 160405 RFWRIW URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 1005 PM MDT SAT SEP 15 2012 ...ANOTHER CRITICAL FIRE WEATHER DAY EXPECTED ACROSS SOUTHERN WYOMING ON SUNDAY... .CRITICAL FIRE WEATHER CONDITIONS WILL CONTINUE SUNDAY AHEAD OF AN APPROACHING COLD FRONT ACROSS THE SOUTHWEST. VERY DRY AND BREEZY CONDITIONS AHEAD OF THIS FRONT WITH AN ABRUPT WIND SHIFT TO THE NORTH BEHIND THE FRONT LATE SUNDAY WILL IMPACT FIRE WEATHER ZONES 277... 278...279 AND 289 SUNDAY. WYZ140-280-286-288-300-414>416-160515- /O.CAN.KRIW.FW.W.0032.000000T0000Z-120916T0600Z/ YELLOWSTONE NATIONAL PARK-NATRONA COUNTY/CASPER BLM- ABSAROKA MOUNTAINS/NORTH SHOSHONE NF- 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- 1005 PM MDT SAT SEP 15 2012 ...RED FLAG WARNING IS CANCELLED FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 140...286...414 AND 415... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS CANCELLED THE RED FLAG WARNING. WINDS HAD DIMINISHED AND RELATIVE HUMIDITY HAD RECOVERED TO NEAR OR ABOVE CRITICAL THRESHOLDS ACROSS MOST OF THE AREA AT DUSK. THEREFORE THE RED FLAG WARNING HAS BEEN CANCELLED. $$ WYZ278-161215- /O.CON.KRIW.FW.W.0032.000000T0000Z-120917T0100Z/ UPPER GREEN RIVER BASIN/ROCK SPRINGS BLM- 1005 PM MDT SAT SEP 15 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM MDT SUNDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 278... * AFFECTED AREA...FIRE WEATHER ZONE 278. * WINDS...NORTHWEST 10 TO 20 MPH WITH GUSTS UP TO 30 MPH. * RELATIVE HUMIDITY...AS LOW AS 12 PERCENT. * HAINES INDEX...6. * IMPACTS...VERY LOW RELATIVE HUMIDITY...GUSTY WEST TO NORTHWEST WINDS AND WARM TEMPERATURES...COMBINING WITH VERY DRY FUELS WILL REDEVELOP SUNDAY AFTERNOON AND PRODUCE CONDITIONS FOR RAPID FIRE SPREAD. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ WYZ277-279-161215- /O.CON.KRIW.FW.W.0032.000000T0000Z-120917T0100Z/ LINCOLN AND UINTA COUNTIES/LOWER ELEVATIONS- SWEETWATER COUNTY/ROCK SPRINGS BLM/FLAMING GORGE NRA- 1005 PM MDT SAT SEP 15 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM MDT SUNDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 277 AND 279... * AFFECTED AREA...FIRE WEATHER ZONES 277 AND 279. * WINDS...WEST 15 TO 25 MPH WITH GUSTS UP TO 30 MPH. * RELATIVE HUMIDITY...AS LOW AS 8 PERCENT. * HAINES INDEX...6. * IMPACTS...VERY LOW RELATIVE HUMIDITY...GUSTY WEST TO NORTHWEST WINDS AND WARM TEMPERATURES...COMBINING WITH VERY DRY FUELS WILL REDEVELOP SUNDAY AFTERNOON AND PRODUCE CONDITIONS FOR RAPID FIRE SPREAD. 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 WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ WYZ289-161215- /O.CON.KRIW.FW.W.0032.000000T0000Z-120917T0100Z/ GRANITE/GREEN/FERRIS/RATTLESNAKE MOUNTAINS- 1005 PM MDT SAT SEP 15 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM MDT SUNDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 289... * AFFECTED AREA...FIRE WEATHER ZONE 289. * WINDS...WEST 10 TO 20 MPH WITH GUSTS UP TO 30 MPH. * RELATIVE HUMIDITY...AS LOW AS 10 PERCENT. * HAINES INDEX...6. * IMPACTS...VERY LOW RELATIVE HUMIDITY...GUSTY WEST TO NORTHWEST WINDS AND WARM TEMPERATURES...COMBINING WITH VERY DRY FUELS WILL REDEVELOP SUNDAY AFTERNOON AND PRODUCE CONDITIONS FOR RAPID FIRE SPREAD. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ HTTP://WEATHER.GOV/RIVERTON
869 WWUS85 KRIW 160743 RFWRIW URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 143 AM MDT SUN SEP 16 2012 ...ANOTHER CRITICAL FIRE WEATHER DAY EXPECTED ACROSS SOUTHERN AND PORTIONS OF CENTRAL WYOMING TODAY... .CRITICAL FIRE WEATHER CONDITIONS WILL CONTINUE ACROSS SOUTHERN AND PORTIONS OF CENTRAL WYOMING TODAY AHEAD OF AN APPROACHING COLD FRONT. VERY DRY AND BREEZY CONDITIONS AHEAD OF THIS FRONT WITH AN ABRUPT WIND SHIFT TO THE NORTH BEHIND THE FRONT LATE SUNDAY WILL IMPACT FIRE WEATHER ZONES 277... 278...279 AND 289 SUNDAY. WYZ278-170100- /O.CON.KRIW.FW.W.0032.000000T0000Z-120917T0100Z/ UPPER GREEN RIVER BASIN/ROCK SPRINGS BLM- 143 AM MDT SUN SEP 16 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 278... * AFFECTED AREA...FIRE WEATHER ZONE 278. * WINDS...NORTHWEST 10 TO 20 MPH WITH GUSTS UP TO 30 MPH. * RELATIVE HUMIDITY...AS LOW AS 12 PERCENT. * HAINES INDEX...6. * IMPACTS...VERY LOW RELATIVE HUMIDITY...GUSTY WEST TO NORTHWEST WINDS AND WARM TEMPERATURES...COMBINING WITH VERY DRY FUELS WILL REDEVELOP SUNDAY AFTERNOON AND PRODUCE CONDITIONS FOR RAPID FIRE SPREAD. 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 WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ WYZ277-279-170100- /O.CON.KRIW.FW.W.0032.000000T0000Z-120917T0100Z/ LINCOLN AND UINTA COUNTIES/LOWER ELEVATIONS- SWEETWATER COUNTY/ROCK SPRINGS BLM/FLAMING GORGE NRA- 143 AM MDT SUN SEP 16 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 277 AND 279... * AFFECTED AREA...FIRE WEATHER ZONES 277 AND 279. * WINDS...WEST 10 TO 20 MPH WITH GUSTS UP TO 30 MPH. * RELATIVE HUMIDITY...AS LOW AS 9 PERCENT. * HAINES INDEX...6. * IMPACTS...VERY LOW RELATIVE HUMIDITY...GUSTY WEST TO NORTHWEST WINDS AND WARM TEMPERATURES...COMBINING WITH VERY DRY FUELS WILL REDEVELOP SUNDAY AFTERNOON AND PRODUCE CONDITIONS FOR RAPID FIRE SPREAD. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ WYZ289-170100- /O.CON.KRIW.FW.W.0032.000000T0000Z-120917T0100Z/ GRANITE/GREEN/FERRIS/RATTLESNAKE MOUNTAINS- 143 AM MDT SUN SEP 16 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 289... * AFFECTED AREA...FIRE WEATHER ZONE 289. * WINDS...WEST 10 TO 20 MPH WITH GUSTS UP TO 30 MPH. * RELATIVE HUMIDITY...AS LOW AS 11 PERCENT. * HAINES INDEX...6. * IMPACTS...VERY LOW RELATIVE HUMIDITY...GUSTY WEST TO NORTHWEST WINDS AND WARM TEMPERATURES...COMBINING WITH VERY DRY FUELS WILL REDEVELOP SUNDAY AFTERNOON AND PRODUCE CONDITIONS FOR RAPID FIRE SPREAD. 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 WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ HTTP://WEATHER.GOV/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 Sep 14, 1:42 PM MDT, 8 minutes earlier.
Area forecast discussion, Sep 14, 1:42 PM MDT, 8 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE RIVERTON WY 142 PM MDT FRI SEP 14 2012 .SHORT TERM...TONIGHT THROUGH MONDAY WARMER AND VERY DRY TODAY WITH SOME CIRRUS MOVING INTO THE WEST. WEAK DISTURBANCE MOVING IN TO THE PACNW WILL MOVE TOWARDS WESTERN WYOMING ON SATURDAY WITH VERY LIMITED MID LEVEL MOISTURE AND INSTABILITY. SMALL CHANCE OF A MOUNTAIN SHOWER OR THUNDERSTORM IN THE FAR NORTHWEST MOUNTAINS. OTHERWISE...WARM TO VERY WARM AND DRY WITH MORE WIND IN MANY LOCATIONS CRITICALLY A CRITICAL FIRE WEATHER DAY ACROSS THE WEST AND SOUTH AND OVER TO CASPER MOUNTAIN. ON SUNDAY...OUR SHORTWAVE IS STILL FORECAST TO DIVE SOUTHEAST OUT OF CANADA PUSHING A COLD FRONT INTO OUR NORTHERN ZONES DURING THE MORNING AND INTO THE RED DESERT BY SUNDAY EVENING. COOLER ACROSS THE NORTH WHILE CONTINUED WARM...VERY DRY AND BREEZY IN THE SOUTH WITH MORE FIRE CONCERNS. THE COMBINATION OF THIS DISTURBANCE AND ANOTHER ONE MOVING INTO THE INTERMOUNTAIN WEST MAY BE PROVIDE JUST ENOUGH MOISTURE AND WEAK FORCING TO PRODUCE SOME MOUNTAIN SHOWERS ON SUNDAY. A FEW OF THESE MAY ALSO AFFECT THE LOWER ELEVATIONS OF THE NORTH AND EAST. NOT IMPRESSIVE BY ANY STRETCH BUT POSSIBLY JUST ENOUGH FOR SOME LIGHT SHOWERS IN MAINLY THE HIGH COUNTRY. COOLER BEHIND THE COLD FRONT MONDAY BUT THE CENTRAL ZONES MAY RECOVER LATE AS THE SURFACE HIGH MOVES SE AWAY FROM THE AREA ALLOWING FOR SOME LATE WARMING. SO INSTEAD OF ALL AREAS REMAINING IN THE 60S MONDAY EAST OF THE DIVIDE...WE MIGHT EEK OUT A FEW 70S IN THE WARMER LOCALES AND NEAR THE FOOTHILLS. OTHERWISE...DRY WITH LOCALLY BREEZY AREAS. LONG TERM...MONDAY NIGHT THROUGH FRIDAY A GENERAL NORTHWEST FLOW PATTERN WILL CONTINUE THROUGH THE WEEK AS THE PATTERN CONTINUES TO LOOK HIGHLY AMPLIFIED WITH A DEEP TROUGH ACROSS THE GREAT LAKES AND A STRONG RIDGE CONTINUING TO HOLD ACROSS THE WEST. WE EXPECT LITTLE MOVEMENT OF THESE SYSTEMS THROUGH FRIDAY. THE ONLY REASON OF CONCERN WOULD BE ANY SYSTEM MOVING THROUGH WITH THE NORTHWEST FLOW PATTERN. MONDAY LOOKS TO SEE TEMPERATURES A BUT BELOW AVERAGE ACROSS THE EAST WITH WARMER TEMPERATURES TO THE WEST IN THE WAKE OF THE COLD FRONTAL PASSAGE. TEMPERATURES THEN WARM A BIT TO ABOVE NORMAL LEVELS FOR TUESDAY. TEMPERATURES THEN COOL DOWN WITH ANOTHER DAY COLD FRONTAL PASSAGE FOR WEDNESDAY. GFS HAS A NEW WRINKLE FOR NEXT THURSDAY WITH A BIT OF QPF WITH A SHORTWAVE MOVING THROUGH THE FLOW EAST OF THE DIVIDE. WE HAVE KEPT THE FORECAST DRY BUT DID INCREASE WINDS A BIT TO THE EAST OF THE BIGHORN RANGE. LIGHTER WINDS THEN LOOK TO RETURN FOR FRIDAY AS SURFACE HIGH PRESSURE REBUILDS OVER THE AREA. AVIATION.../00Z ISSUANCE/ THE ONLY FLIGHT RESTRICTIONS WILL BE NEAR AND DOWNWIND OF WILDFIRES...WHERE LOCAL MVFR CONDITIONS WILL BE POSSIBLE. EXCEPT FOR SCATTERED CIRRUS...MAINLY CLEAR CONDITIONS ARE EXPECTED. WINDS WILL REMAIN GENERALLY LIGHT TOMORROW MORNING...WITH SUSTAINED WINDS LESS THAN 12 KNOTS. WINDS WILL BEGIN TO INCREASE AFTER AROUND 15Z THROUGH THE SOUTHWEST WIND CORRIDOR FROM KRKS TO KCPR AND IN MOST TAF SITES AFTER 18Z AS THE PRESSURE GRADIENT TIGHTENS A BIT IN RESPONSE TO AN APPROACHING FRONT. FIRE WEATHER... WARMER AND VERY DRY DAY TODAY BUT MOST WINDS ARE STAYING REASONABLY LIGHT WITH ONLY LOCALIZED AREAS SEEING SOME 10 TO 20 MPH WINDS. THE WINDS SHOULD BE STRONGER ON SATURDAY...ESPECIALLY ACROSS THE SOUTH AND WEST AND IN THE MOUNTAINS. THE COMBINATION OF TODAY'S FIRE WEATHER ELEMENTS COMBINED WITH THE INCREASING WIND WILL RESULT IN RED FLAG CONDITIONS ACROSS THE WEST AND SOUTHERN PART OF THE DISTRICT EAST TO NATRONA COUNTY. THERE IS A SLIGHT CHANCE OF A LATE DAY SHOWER OR THUNDERSTORM IN THE FAR NORTHERN MOUNTAINS OF YELLOWSTONE NATIONAL PARK AND THE NORTHERN ABSAROKAS. ON SUNDAY...A COLD FRONT WILL PUSH INTO THE NORTHERN PART OF THE DISTRICT DURING THE MORNING WHILE THE SOUTH REMAINS WARM...VERY DRY AND POTENTIALLY WINDY. CRITICAL FIRE WEATHER CONDITIONS MAY CONTINUE INTO SUNDAY AHEAD OF THIS SUNDAY COLD FRONT. MONDAY WILL BE COOLER WITH HIGHER RELATIVE HUMIDITIES. A FEW SHOWERS MAY ALSO ACCOMPANY THE COLD FRONT SUNDAY...MAINLY IN THE MOUNTAINS AND FAR EASTERN ZONES. && .RIW WATCHES/WARNINGS/ADVISORIES... RED FLAG WARNING FROM 10 AM SATURDAY TO MIDNIGHT MDT SATURDAY NIGHT WYZ140-277>280-286-288-289-300-414>416. && SHORT TERM...SKRBAC LONG TERM...HATTINGS AVIATION...HATTINGS FIRE WEATHER...SKRBAC
Hazardous weather outlook, Sep 14, 5:00 AM MDT, 8 hours 50 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE RIVERTON WY 500 AM MDT FRI SEP 14 2012 WYZ001>020-022>030-151200- ABSAROKA MOUNTAINS-BIGHORN MOUNTAINS SOUTHEAST- BIGHORN MOUNTAINS WEST-CASPER MOUNTAIN-CODY FOOTHILLS- EAST SWEETWATER COUNTY-FLAMING GORGE- GREEN MOUNTAINS AND RATTLESNAKE RANGE-JACKSON HOLE-LANDER FOOTHILLS- NATRONA COUNTY LOWER ELEVATIONS-NORTH BIG HORN BASIN- NORTHEAST JOHNSON COUNTY-OWL CREEK AND BRIDGER MOUNTAINS- ROCK SPRINGS AND GREEN RIVER-SALT RIVER AND WYOMING RANGES- SOUTH LINCOLN COUNTY-SOUTHEAST BIG HORN BASIN- SOUTHEAST JOHNSON COUNTY-SOUTHWEST BIG HORN BASIN-STAR VALLEY- TETON AND GROS VENTRE MOUNTAINS-UPPER GREEN RIVER BASIN- UPPER GREEN RIVER BASIN FOOTHILLS-UPPER WIND RIVER BASIN- WIND RIVER BASIN-WIND RIVER MOUNTAINS EAST-WIND RIVER MOUNTAINS WEST- YELLOWSTONE NATIONAL PARK- 500 AM MDT FRI SEP 14 2012 ...FIRE WEATHER WATCH FOR WESTERN AND PARTS OF CENTRAL WYOMING SATURDAY... THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN AND CENTRAL WYOMING. .DAY ONE...TODAY AND TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY SATURDAY...VERY DRY AND INCREASED WIND SPEEDS MAY BRING ELEVATED FIRE WEATHER CONDITIONS BACK TO THE AREA. A FIRE WEATHER WATCH IS IN EFFECT FOR SATURDAY FOR WESTERN AND PARTS OF CENTRAL WYOMING AS WINDS INCREASE ACROSS THE AREA. SUNDAY AND SUNDAY NIGHT...A COLD FRONT WILL PUSH INTO THE NORTH SUNDAY MORNING AND PROGRESS SOUTH SUNDAY AFTERNOON AND EVENING. ISOLATED THUNDERSTORMS MAY OCCUR WITH THE COLD FRONTAL PASSAGE. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY AND TONIGHT. TEAM RIVERTON
Nearby
Red Flag Warnings in Wyoming, 2012Every red flag warning in 2012
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.