Alert archive / Wyoming / Red Flag Warnings in 2012
Red Flag Warning 20, NWS Riverton, WY
NWS Riverton, WY issued this red flag warning at Aug 9, 2012, 2:35 AM MDT for 9 counties in Wyoming. It took effect at Aug 9, 2012, 12:00 PM MDT. It was in force for 33 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 9, 2012, 2:35 AM MDT (08:35 UTC)
- In effect from
- Aug 9, 2012, 12:00 PM MDT
- Expired
- Aug 10, 2012, 9:00 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 08:34 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, 8.6 hours before the alert went out and 78 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
- 4947 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- -2 m²/s²
- 0-3 km storm-relative helicity
- 72 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
595 WWUS85 KRIW 090835 RFWRIW URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 235 AM MDT THU AUG 9 2012 ...RED FLAG WARNING FOR DRY LIGHTNING LOW RELATIVE HUMIDITY AND STRONG WIND GUSTS THIS AFTERNOON AND EVENING... .WEAK MONSOONAL MOISTURE WILL SPREAD NORTH ACROSS WESTERN AND SOUTHERN WYOMING TODAY. WITH HEATING...THE AIR MASS WILL BECOME UNSTABLE IN THE AFTERNOON WITH WIDELY SCATTERED HIGH BASED THUNDERSTORMS DEVELOPING. STRONG WIND GUSTS...POSSIBLY OVER 50 MPH AND DRY LIGHTNING WILL COMBINE WITH LOW RELATIVE HUMIDITY AND DRY FUELS TO PRODUCE CONDITIONS FAVORABLE FOR FIRE STARTS WITH RAPID RATES OF SPREAD. WYZ279-289-091815- /O.UPG.KRIW.FW.A.0018.120809T1800Z-120810T0300Z/ /O.NEW.KRIW.FW.W.0020.120809T1800Z-120810T0300Z/ SWEETWATER COUNTY/ROCK SPRINGS BLM/FLAMING GORGE NRA- GRANITE/GREEN/FERRIS/RATTLESNAKE MOUNTAINS- 235 AM MDT THU AUG 9 2012 ...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 9 PM MDT THIS EVENING FOR DRY THUNDERSTORMS FOR FIRE WEATHER ZONES 279 AND 289... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A RED FLAG WARNING FOR DRY THUNDERSTORMS...WHICH IS IN EFFECT FROM NOON TODAY TO 9 PM MDT THIS EVENING. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. * AFFECTED AREA...FIRE WEATHER ZONES 279 AND 289. * THUNDERSTORMS...WIDELY SCATTERED WITH AN LAL OF 6. * OUTFLOW WINDS...AROUND 50 MPH. * RELATIVE HUMIDITY...AS LOW AS 11 PERCENT. * IMPACTS...STRONG WIND GUSTS...POSSIBLY OVER 50 MPH AND DRY LIGHTNING WILL COMBINE WITH LOW RELATIVE HUMIDITY AND DRY FUELS TO PRODUCE CONDITIONS FAVORABLE FOR FIRE STARTS WITH RAPID RATES OF 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. && $$ WYZ277-278-091815- /O.UPG.KRIW.FW.A.0018.120809T1800Z-120810T0300Z/ /O.NEW.KRIW.FW.W.0020.120809T1800Z-120810T0300Z/ LINCOLN AND UINTA COUNTIES/LOWER ELEVATIONS- UPPER GREEN RIVER BASIN/ROCK SPRINGS BLM- 235 AM MDT THU AUG 9 2012 ...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 9 PM MDT THIS EVENING FOR DRY THUNDERSTORMS FOR FIRE WEATHER ZONES 277 AND 278... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A RED FLAG WARNING FOR DRY THUNDERSTORMS...WHICH IS IN EFFECT FROM NOON TODAY TO 9 PM MDT THIS EVENING. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. * AFFECTED AREA...FIRE WEATHER ZONES 277 AND 278. * THUNDERSTORMS...WIDELY SCATTERED WITH AN LAL OF 6. * OUTFLOW WINDS...AROUND 50 MPH. * RELATIVE HUMIDITY...AS LOW AS 15 PERCENT. * IMPACTS...STRONG WIND GUSTS...POSSIBLY OVER 50 MPH AND DRY LIGHTNING WILL COMBINE WITH LOW RELATIVE HUMIDITY AND DRY FUELS TO PRODUCE CONDITIONS FAVORABLE FOR FIRE STARTS WITH RAPID RATES OF SPREAD. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ WYZ288-416-091815- /O.UPG.KRIW.FW.A.0018.120809T1800Z-120810T0300Z/ /O.NEW.KRIW.FW.W.0020.120809T1800Z-120810T0300Z/ EAST WIND RIVER MOUNTAINS/SOUTH SHOSHONE NF- WEST WIND RIVER MOUNTAINS/EAST ZONE BRIDGER TETON NF- 235 AM MDT THU AUG 9 2012 ...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 9 PM MDT THIS EVENING FOR DRY THUNDERSTORMS FOR FIRE WEATHER ZONES 288 AND 416... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A RED FLAG WARNING FOR DRY THUNDERSTORMS...WHICH IS IN EFFECT FROM NOON TODAY TO 9 PM MDT THIS EVENING. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. * AFFECTED AREA...FIRE WEATHER ZONES 288 AND 416. * THUNDERSTORMS...WIDELY SCATTERED WITH AN LAL OF 6. * OUTFLOW WINDS...AROUND 50 MPH. * RELATIVE HUMIDITY...AS LOW AS 17 PERCENT. * IMPACTS...STRONG WIND GUSTS...POSSIBLY OVER 50 MPH AND DRY LIGHTNING WILL COMBINE WITH LOW RELATIVE HUMIDITY AND DRY FUELS TO PRODUCE CONDITIONS FAVORABLE FOR FIRE STARTS WITH RAPID RATES OF 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. && $$ WYZ414-415-091815- /O.UPG.KRIW.FW.A.0018.120809T1800Z-120810T0300Z/ /O.NEW.KRIW.FW.W.0020.120809T1800Z-120810T0300Z/ SALT AND WYOMING RANGES/WEST ZONE BRIDGER TETON NF- NORTH ZONE BRIDGER TETON NF AND GRAND TETON NP- 235 AM MDT THU AUG 9 2012 ...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 9 PM MDT THIS EVENING FOR DRY THUNDERSTORMS FOR FIRE WEATHER ZONES 414 AND 415... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A RED FLAG WARNING FOR DRY THUNDERSTORMS...WHICH IS IN EFFECT FROM NOON TODAY TO 9 PM MDT THIS EVENING. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. * AFFECTED AREA...FIRE WEATHER ZONES 414 AND 415. * THUNDERSTORMS...WIDELY SCATTERED WITH AN LAL OF 6. * OUTFLOW WINDS...AROUND 50 MPH. * RELATIVE HUMIDITY...AS LOW AS 20 PERCENT. * IMPACTS...STRONG WIND GUSTS...POSSIBLY OVER 50 MPH AND DRY LIGHTNING WILL COMBINE WITH LOW RELATIVE HUMIDITY AND DRY FUELS TO PRODUCE CONDITIONS FAVORABLE FOR FIRE STARTS WITH RAPID RATES OF SPREAD. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ WYZ286-091815- /O.UPG.KRIW.FW.A.0018.120809T1800Z-120810T0300Z/ /O.NEW.KRIW.FW.W.0020.120809T1800Z-120810T0300Z/ ABSAROKA MOUNTAINS/NORTH SHOSHONE NF- 235 AM MDT THU AUG 9 2012 ...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 9 PM MDT THIS EVENING FOR DRY THUNDERSTORMS FOR FIRE WEATHER ZONE 286... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A RED FLAG WARNING FOR DRY THUNDERSTORMS...WHICH IS IN EFFECT FROM NOON TODAY TO 9 PM MDT THIS EVENING. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. * AFFECTED AREA...FIRE WEATHER ZONE 286. * THUNDERSTORMS...WIDELY SCATTERED WITH AN LAL OF 6. * OUTFLOW WINDS...AROUND 50 MPH. * RELATIVE HUMIDITY...AS LOW AS 18 PERCENT. * IMPACTS...STRONG WIND GUSTS...POSSIBLY OVER 50 MPH AND DRY LIGHTNING WILL COMBINE WITH LOW RELATIVE HUMIDITY AND DRY FUELS TO PRODUCE CONDITIONS FAVORABLE FOR FIRE STARTS WITH RAPID RATES OF 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. && $$ WYZ140-091815- /O.UPG.KRIW.FW.A.0018.120809T1800Z-120810T0300Z/ /O.NEW.KRIW.FW.W.0020.120809T1800Z-120810T0300Z/ YELLOWSTONE NATIONAL PARK- 235 AM MDT THU AUG 9 2012 ...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 9 PM MDT THIS EVENING FOR DRY THUNDERSTORMS FOR FIRE WEATHER ZONE 140... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A RED FLAG WARNING FOR DRY THUNDERSTORMS...WHICH IS IN EFFECT FROM NOON TODAY TO 9 PM MDT THIS EVENING. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. * AFFECTED AREA...FIRE WEATHER ZONE 140. * THUNDERSTORMS...WIDELY SCATTERED WITH AN LAL OF 6. * OUTFLOW WINDS...AROUND 50 MPH. * RELATIVE HUMIDITY...AS LOW AS 22 PERCENT. * IMPACTS...STRONG WIND GUSTS...POSSIBLY OVER 50 MPH AND DRY LIGHTNING WILL COMBINE WITH LOW RELATIVE HUMIDITY AND DRY FUELS TO PRODUCE CONDITIONS FAVORABLE FOR FIRE STARTS WITH RAPID RATES OF SPREAD. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ HTTP://WEATHER.GOV/RIVERTON
4 follow-up statements
138 WWUS85 KRIW 091819 RFWRIW URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 1219 PM MDT THU AUG 9 2012 ...RED FLAG WARNING FOR DRY LIGHTNING LOW RELATIVE HUMIDITY AND STRONG WIND GUSTS THIS AFTERNOON THROUGH FRIDAY EVENING... .WEAK MONSOONAL MOISTURE WILL SPREAD NORTHWARD ACROSS WESTERN AND SOUTHERN WYOMING TODAY. WITH HEATING...THE AIR MASS WILL BECOME UNSTABLE IN THE AFTERNOON WITH WIDELY SCATTERED HIGH BASED THUNDERSTORMS DEVELOPING. STRONG WIND GUSTS...POSSIBLY OVER 50 MPH AND DRY LIGHTNING WILL COMBINE WITH LOW RELATIVE HUMIDITY AND DRY FUELS TO PRODUCE CONDITIONS FAVORABLE FOR FIRE STARTS WITH RAPID RATES OF SPREAD. AS MOISTURE SPREADS ACROSS THE REST OF THE STATE FRIDAY...THE THREAT OF FIRE STARTS FROM THUNDERSTORMS WILL EXTEND ACROSS THE REST OF THE FORECAST AREA. WYZ275-276-282-100900- /O.NEW.KRIW.FW.W.0021.120810T1800Z-120811T0300Z/ NORTH BIG HORN BASIN/WORLAND BLM-CODY FOOTHILLS- SOUTH BIG HORN BASIN/WORLAND BLM- 1219 PM MDT THU AUG 9 2012 ...RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM MDT FRIDAY FOR THUNDERSTORMS FOR FIRE WEATHER ZONES 275...276 AND 282... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A RED FLAG WARNING FOR THUNDERSTORMS...WHICH IS IN EFFECT FROM NOON TO 9 PM MDT FRIDAY. * AFFECTED AREA...FIRE WEATHER ZONES 275...276 AND 282. * THUNDERSTORMS...WIDELY SCATTERED WITH AN LAL OF 6. * OUTFLOW WINDS...AROUND 50 MPH. * RELATIVE HUMIDITY...AS LOW AS 10 PERCENT * IMPACTS...STRONG WIND GUSTS...POSSIBLY OVER 50 MPH AND DRY LIGHTNING WILL COMBINE WITH LOW RELATIVE HUMIDITY AND DRY FUELS TO PRODUCE CONDITIONS FAVORABLE FOR FIRE STARTS WITH RAPID RATES OF 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. && $$ WYZ285-287-100900- /O.NEW.KRIW.FW.W.0021.120810T1800Z-120811T0300Z/ SOUTH BIGHORN MOUNTAINS-OWL CREEK MOUNTAINS- 1219 PM MDT THU AUG 9 2012 ...RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM MDT FRIDAY FOR THUNDERSTORMS FOR FIRE WEATHER ZONES 285 AND 287... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A RED FLAG WARNING FOR THUNDERSTORMS...WHICH IS IN EFFECT FROM NOON TO 9 PM MDT FRIDAY. * AFFECTED AREA...FIRE WEATHER ZONES 285 AND 287. * THUNDERSTORMS...WIDELY SCATTERED WITH AN LAL OF 6. * OUTFLOW WINDS...AROUND 50 MPH. * RELATIVE HUMIDITY...AS LOW AS 15 PERCENT * IMPACTS...STRONG WIND GUSTS...POSSIBLY OVER 50 MPH AND DRY LIGHTNING WILL COMBINE WITH LOW RELATIVE HUMIDITY AND DRY FUELS TO PRODUCE CONDITIONS FAVORABLE FOR FIRE STARTS WITH RAPID RATES OF SPREAD. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ WYZ280-281-300-100900- /O.NEW.KRIW.FW.W.0021.120810T1800Z-120811T0300Z/ NATRONA COUNTY/CASPER BLM-JOHNSON COUNTY/CASPER BLM- CASPER MOUNTAIN- 1219 PM MDT THU AUG 9 2012 ...RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM MDT FRIDAY FOR THUNDERSTORMS FOR FIRE WEATHER ZONES 280...281 AND 300... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A RED FLAG WARNING FOR THUNDERSTORMS...WHICH IS IN EFFECT FROM NOON TO 9 PM MDT FRIDAY. * AFFECTED AREA...FIRE WEATHER ZONES 280...281 AND 300. * THUNDERSTORMS...WIDELY SCATTERED WITH AN LAL OF 6. * OUTFLOW WINDS...AROUND 50 MPH. * RELATIVE HUMIDITY...AS LOW AS 10 PERCENT * IMPACTS...STRONG WIND GUSTS...POSSIBLY OVER 50 MPH AND DRY LIGHTNING WILL COMBINE WITH LOW RELATIVE HUMIDITY AND DRY FUELS TO PRODUCE CONDITIONS FAVORABLE FOR FIRE STARTS WITH RAPID RATES OF 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. && $$ WYZ283-100900- /O.NEW.KRIW.FW.W.0021.120810T1800Z-120811T0300Z/ UPPER WIND RIVER BASIN/WIND RIVER BASIN- 1219 PM MDT THU AUG 9 2012 ...RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM MDT FRIDAY FOR THUNDERSTORMS FOR FIRE WEATHER ZONE 283... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A RED FLAG WARNING FOR THUNDERSTORMS...WHICH IS IN EFFECT FROM NOON TO 9 PM MDT FRIDAY. * AFFECTED AREA...FIRE WEATHER ZONE 283. * THUNDERSTORMS...WIDELY SCATTERED WITH AN LAL OF 6. * OUTFLOW WINDS...AROUND 50 MPH. * RELATIVE HUMIDITY...AS LOW AS 10 PERCENT * IMPACTS...STRONG WIND GUSTS...POSSIBLY OVER 50 MPH AND DRY LIGHTNING WILL COMBINE WITH LOW RELATIVE HUMIDITY AND DRY FUELS TO PRODUCE CONDITIONS FAVORABLE FOR FIRE STARTS WITH RAPID RATES OF SPREAD. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ WYZ279-289-100900- /O.EXT.KRIW.FW.W.0020.000000T0000Z-120811T0300Z/ SWEETWATER COUNTY/ROCK SPRINGS BLM/FLAMING GORGE NRA- GRANITE/GREEN/FERRIS/RATTLESNAKE MOUNTAINS- 1219 PM MDT THU AUG 9 2012 ...RED FLAG WARNING NOW IN EFFECT UNTIL 9 PM MDT FRIDAY FOR DRY THUNDERSTORMS FOR FIRE WEATHER ZONES 279 AND 289... * AFFECTED AREA...FIRE WEATHER ZONES 279 AND 289. * THUNDERSTORMS...WIDELY SCATTERED WITH AN LAL OF 6. * OUTFLOW WINDS...AROUND 50 MPH. * RELATIVE HUMIDITY...AS LOW AS 10 PERCENT. * IMPACTS...STRONG WIND GUSTS...POSSIBLY OVER 50 MPH AND DRY LIGHTNING WILL COMBINE WITH LOW RELATIVE HUMIDITY AND DRY FUELS TO PRODUCE CONDITIONS FAVORABLE FOR FIRE STARTS WITH RAPID RATES OF 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. && $$ WYZ277-278-100900- /O.EXT.KRIW.FW.W.0020.000000T0000Z-120811T0300Z/ LINCOLN AND UINTA COUNTIES/LOWER ELEVATIONS- UPPER GREEN RIVER BASIN/ROCK SPRINGS BLM- 1219 PM MDT THU AUG 9 2012 ...RED FLAG WARNING NOW IN EFFECT UNTIL 9 PM MDT FRIDAY FOR DRY THUNDERSTORMS FOR FIRE WEATHER ZONES 277 AND 278... * AFFECTED AREA...FIRE WEATHER ZONES 277 AND 278. * THUNDERSTORMS...WIDELY SCATTERED WITH AN LAL OF 6. * OUTFLOW WINDS...AROUND 50 MPH. * RELATIVE HUMIDITY...AS LOW AS 15 PERCENT. * IMPACTS...STRONG WIND GUSTS...POSSIBLY OVER 50 MPH AND DRY LIGHTNING WILL COMBINE WITH LOW RELATIVE HUMIDITY AND DRY FUELS TO PRODUCE CONDITIONS FAVORABLE FOR FIRE STARTS WITH RAPID RATES OF SPREAD. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ WYZ288-416-100900- /O.EXT.KRIW.FW.W.0020.000000T0000Z-120811T0300Z/ EAST WIND RIVER MOUNTAINS/SOUTH SHOSHONE NF- WEST WIND RIVER MOUNTAINS/EAST ZONE BRIDGER TETON NF- 1219 PM MDT THU AUG 9 2012 ...RED FLAG WARNING NOW IN EFFECT UNTIL 9 PM MDT FRIDAY FOR DRY THUNDERSTORMS FOR FIRE WEATHER ZONES 288 AND 416... * AFFECTED AREA...FIRE WEATHER ZONES 288 AND 416. * THUNDERSTORMS...WIDELY SCATTERED WITH AN LAL OF 6. * OUTFLOW WINDS...AROUND 50 MPH. * RELATIVE HUMIDITY...AS LOW AS 15 PERCENT. * IMPACTS...STRONG WIND GUSTS...POSSIBLY OVER 50 MPH AND DRY LIGHTNING WILL COMBINE WITH LOW RELATIVE HUMIDITY AND DRY FUELS TO PRODUCE CONDITIONS FAVORABLE FOR FIRE STARTS WITH RAPID RATES OF 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. && $$ WYZ414-415-100900- /O.EXT.KRIW.FW.W.0020.000000T0000Z-120811T0300Z/ SALT AND WYOMING RANGES/WEST ZONE BRIDGER TETON NF- NORTH ZONE BRIDGER TETON NF AND GRAND TETON NP- 1219 PM MDT THU AUG 9 2012 ...RED FLAG WARNING NOW IN EFFECT UNTIL 9 PM MDT FRIDAY FOR DRY THUNDERSTORMS FOR FIRE WEATHER ZONES 414 AND 415... * AFFECTED AREA...FIRE WEATHER ZONES 414 AND 415. * THUNDERSTORMS...WIDELY SCATTERED WITH AN LAL OF 6. * OUTFLOW WINDS...AROUND 50 MPH. * RELATIVE HUMIDITY...AS LOW AS 20 PERCENT. * IMPACTS...STRONG WIND GUSTS...POSSIBLY OVER 50 MPH AND DRY LIGHTNING WILL COMBINE WITH LOW RELATIVE HUMIDITY AND DRY FUELS TO PRODUCE CONDITIONS FAVORABLE FOR FIRE STARTS WITH RAPID RATES OF SPREAD. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ WYZ286-100900- /O.EXT.KRIW.FW.W.0020.000000T0000Z-120811T0300Z/ ABSAROKA MOUNTAINS/NORTH SHOSHONE NF- 1219 PM MDT THU AUG 9 2012 ...RED FLAG WARNING NOW IN EFFECT UNTIL 9 PM MDT FRIDAY FOR DRY THUNDERSTORMS FOR FIRE WEATHER ZONE 286... * AFFECTED AREA...FIRE WEATHER ZONE 286. * THUNDERSTORMS...WIDELY SCATTERED WITH AN LAL OF 6. * OUTFLOW WINDS...AROUND 50 MPH. * RELATIVE HUMIDITY...AS LOW AS 18 PERCENT. * IMPACTS...STRONG WIND GUSTS...POSSIBLY OVER 50 MPH AND DRY LIGHTNING WILL COMBINE WITH LOW RELATIVE HUMIDITY AND DRY FUELS TO PRODUCE CONDITIONS FAVORABLE FOR FIRE STARTS WITH RAPID RATES OF 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. && $$ WYZ140-100900- /O.EXT.KRIW.FW.W.0020.000000T0000Z-120811T0300Z/ YELLOWSTONE NATIONAL PARK- 1219 PM MDT THU AUG 9 2012 ...RED FLAG WARNING NOW IN EFFECT UNTIL 9 PM MDT FRIDAY FOR DRY THUNDERSTORMS FOR FIRE WEATHER ZONE 140... * AFFECTED AREA...FIRE WEATHER ZONE 140. * THUNDERSTORMS...WIDELY SCATTERED WITH AN LAL OF 6. * OUTFLOW WINDS...AROUND 50 MPH. * RELATIVE HUMIDITY...AS LOW AS 20 PERCENT. * IMPACTS...STRONG WIND GUSTS...POSSIBLY OVER 50 MPH AND DRY LIGHTNING WILL COMBINE WITH LOW RELATIVE HUMIDITY AND DRY FUELS TO PRODUCE CONDITIONS FAVORABLE FOR FIRE STARTS WITH RAPID RATES OF SPREAD. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ HTTP://WEATHER.GOV/RIVERTON
515 WWUS85 KRIW 100824 RFWRIW URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 224 AM MDT FRI AUG 10 2012 ...RED FLAG WARNING FOR DRY LIGHTNING LOW RELATIVE HUMIDITY AND STRONG WIND GUSTS THIS AFTERNOON THROUGH THIS EVENING... .MONSOONAL MOISTURE WILL SPREAD NORTHWARD ACROSS THE STATE TODAY. WITH HEATING...THE AIR MASS WILL BECOME UNSTABLE IN THE AFTERNOON WITH WIDELY SCATTERED TO SCATTERED HIGH BASED THUNDERSTORMS DEVELOPING. STRONG WIND GUSTS...POSSIBLY OVER 50 MPH AND DRY LIGHTNING WILL COMBINE WITH LOW RELATIVE HUMIDITY AND DRY FUELS TO PRODUCE CONDITIONS FAVORABLE FOR FIRE STARTS WITH RAPID RATES OF SPREAD. THE THREAT OF FIRE STARTS FROM THUNDERSTORMS WILL EXTEND ACROSS THE FORECAST AREA THROUGH THIS EVENING. WYZ279-289-101815- /O.CON.KRIW.FW.W.0020.000000T0000Z-120811T0300Z/ SWEETWATER COUNTY/ROCK SPRINGS BLM/FLAMING GORGE NRA- GRANITE/GREEN/FERRIS/RATTLESNAKE MOUNTAINS- 224 AM MDT FRI AUG 10 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR DRY THUNDERSTORMS FOR FIRE WEATHER ZONES 279 AND 289... * AFFECTED AREA...FIRE WEATHER ZONES 279 AND 289. * THUNDERSTORMS...WIDELY SCATTERED WITH AN LAL OF 6. * OUTFLOW WINDS...AROUND 50 MPH. * RELATIVE HUMIDITY...AS LOW AS 16 PERCENT. * IMPACTS...STRONG WIND GUSTS...POSSIBLY OVER 50 MPH AND DRY LIGHTNING WILL COMBINE WITH LOW RELATIVE HUMIDITY AND DRY FUELS TO PRODUCE CONDITIONS FAVORABLE FOR FIRE STARTS WITH RAPID RATES OF 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. && $$ WYZ277-278-101815- /O.CON.KRIW.FW.W.0020.000000T0000Z-120811T0300Z/ LINCOLN AND UINTA COUNTIES/LOWER ELEVATIONS- UPPER GREEN RIVER BASIN/ROCK SPRINGS BLM- 224 AM MDT FRI AUG 10 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR DRY THUNDERSTORMS FOR FIRE WEATHER ZONES 277 AND 278... * AFFECTED AREA...FIRE WEATHER ZONES 277 AND 278. * THUNDERSTORMS...WIDELY SCATTERED WITH AN LAL OF 6. * OUTFLOW WINDS...AROUND 50 MPH. * RELATIVE HUMIDITY...AS LOW AS 17 PERCENT. * IMPACTS...STRONG WIND GUSTS...POSSIBLY OVER 50 MPH AND DRY LIGHTNING WILL COMBINE WITH LOW RELATIVE HUMIDITY AND DRY FUELS TO PRODUCE CONDITIONS FAVORABLE FOR FIRE STARTS WITH RAPID RATES OF SPREAD. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ WYZ288-416-101815- /O.CON.KRIW.FW.W.0020.000000T0000Z-120811T0300Z/ EAST WIND RIVER MOUNTAINS/SOUTH SHOSHONE NF- WEST WIND RIVER MOUNTAINS/EAST ZONE BRIDGER TETON NF- 224 AM MDT FRI AUG 10 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR DRY THUNDERSTORMS FOR FIRE WEATHER ZONES 288 AND 416... * AFFECTED AREA...FIRE WEATHER ZONES 288 AND 416. * THUNDERSTORMS...WIDELY SCATTERED WITH AN LAL OF 6. * OUTFLOW WINDS...AROUND 50 MPH. * RELATIVE HUMIDITY...AS LOW AS 21 PERCENT. * IMPACTS...STRONG WIND GUSTS...POSSIBLY OVER 50 MPH AND DRY LIGHTNING WILL COMBINE WITH LOW RELATIVE HUMIDITY AND DRY FUELS TO PRODUCE CONDITIONS FAVORABLE FOR FIRE STARTS WITH RAPID RATES OF 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. && $$ WYZ414-415-101815- /O.CON.KRIW.FW.W.0020.000000T0000Z-120811T0300Z/ SALT AND WYOMING RANGES/WEST ZONE BRIDGER TETON NF- NORTH ZONE BRIDGER TETON NF AND GRAND TETON NP- 224 AM MDT FRI AUG 10 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR DRY THUNDERSTORMS FOR FIRE WEATHER ZONES 414 AND 415... * AFFECTED AREA...FIRE WEATHER ZONES 414 AND 415. * THUNDERSTORMS...WIDELY SCATTERED WITH AN LAL OF 6. * OUTFLOW WINDS...AROUND 50 MPH. * RELATIVE HUMIDITY...AS LOW AS 24 PERCENT. * IMPACTS...STRONG WIND GUSTS...POSSIBLY OVER 50 MPH AND DRY LIGHTNING WILL COMBINE WITH LOW RELATIVE HUMIDITY AND DRY FUELS TO PRODUCE CONDITIONS FAVORABLE FOR FIRE STARTS WITH RAPID RATES OF SPREAD. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ WYZ286-101815- /O.CON.KRIW.FW.W.0020.000000T0000Z-120811T0300Z/ ABSAROKA MOUNTAINS/NORTH SHOSHONE NF- 224 AM MDT FRI AUG 10 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR DRY THUNDERSTORMS FOR FIRE WEATHER ZONE 286... * AFFECTED AREA...FIRE WEATHER ZONE 286. * THUNDERSTORMS...WIDELY SCATTERED WITH AN LAL OF 6. * OUTFLOW WINDS...AROUND 50 MPH. * RELATIVE HUMIDITY...AS LOW AS 22 PERCENT. * IMPACTS...STRONG WIND GUSTS...POSSIBLY OVER 50 MPH AND DRY LIGHTNING WILL COMBINE WITH LOW RELATIVE HUMIDITY AND DRY FUELS TO PRODUCE CONDITIONS FAVORABLE FOR FIRE STARTS WITH RAPID RATES OF 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. && $$ WYZ140-101815- /O.CON.KRIW.FW.W.0020.000000T0000Z-120811T0300Z/ YELLOWSTONE NATIONAL PARK- 224 AM MDT FRI AUG 10 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR DRY THUNDERSTORMS FOR FIRE WEATHER ZONE 140... * AFFECTED AREA...FIRE WEATHER ZONE 140. * THUNDERSTORMS...WIDELY SCATTERED WITH AN LAL OF 6. * OUTFLOW WINDS...AROUND 50 MPH. * RELATIVE HUMIDITY...AS LOW AS 30 PERCENT. * IMPACTS...STRONG WIND GUSTS...POSSIBLY OVER 50 MPH AND DRY LIGHTNING WILL COMBINE WITH LOW RELATIVE HUMIDITY AND DRY FUELS TO PRODUCE CONDITIONS FAVORABLE FOR FIRE STARTS WITH RAPID RATES OF SPREAD. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ WYZ275-276-282-101815- /O.CON.KRIW.FW.W.0021.120810T1800Z-120811T0300Z/ NORTH BIG HORN BASIN/WORLAND BLM-CODY FOOTHILLS- SOUTH BIG HORN BASIN/WORLAND BLM- 224 AM MDT FRI AUG 10 2012 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 9 PM MDT THIS EVENING FOR THUNDERSTORMS FOR FIRE WEATHER ZONES 275... 276 AND 282... * AFFECTED AREA...FIRE WEATHER ZONES 275...276 AND 282. * THUNDERSTORMS...WIDELY SCATTERED WITH AN LAL OF 6. * OUTFLOW WINDS...AROUND 50 MPH. * RELATIVE HUMIDITY...AS LOW AS 16 PERCENT. * IMPACTS...STRONG WIND GUSTS...POSSIBLY OVER 50 MPH AND DRY LIGHTNING WILL COMBINE WITH LOW RELATIVE HUMIDITY AND DRY FUELS TO PRODUCE CONDITIONS FAVORABLE FOR FIRE STARTS WITH RAPID RATES OF 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. && $$ WYZ285-287-101815- /O.CON.KRIW.FW.W.0021.120810T1800Z-120811T0300Z/ SOUTH BIGHORN MOUNTAINS-OWL CREEK MOUNTAINS- 224 AM MDT FRI AUG 10 2012 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 9 PM MDT THIS EVENING FOR THUNDERSTORMS FOR FIRE WEATHER ZONES 285 AND 287... * AFFECTED AREA...FIRE WEATHER ZONES 285 AND 287. * THUNDERSTORMS...WIDELY SCATTERED WITH AN LAL OF 6. * OUTFLOW WINDS...AROUND 50 MPH. * RELATIVE HUMIDITY...AS LOW AS 15 PERCENT. * IMPACTS...STRONG WIND GUSTS...POSSIBLY OVER 50 MPH AND DRY LIGHTNING WILL COMBINE WITH LOW RELATIVE HUMIDITY AND DRY FUELS TO PRODUCE CONDITIONS FAVORABLE FOR FIRE STARTS WITH RAPID RATES OF SPREAD. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ WYZ280-281-300-101815- /O.CON.KRIW.FW.W.0021.120810T1800Z-120811T0300Z/ NATRONA COUNTY/CASPER BLM-JOHNSON COUNTY/CASPER BLM- CASPER MOUNTAIN- 224 AM MDT FRI AUG 10 2012 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 9 PM MDT THIS EVENING FOR THUNDERSTORMS FOR FIRE WEATHER ZONES 280... 281 AND 300... * AFFECTED AREA...FIRE WEATHER ZONES 280...281 AND 300. * THUNDERSTORMS...WIDELY SCATTERED WITH AN LAL OF 6. * OUTFLOW WINDS...AROUND 50 MPH. * RELATIVE HUMIDITY...AS LOW AS 15 PERCENT. * IMPACTS...STRONG WIND GUSTS...POSSIBLY OVER 50 MPH AND DRY LIGHTNING WILL COMBINE WITH LOW RELATIVE HUMIDITY AND DRY FUELS TO PRODUCE CONDITIONS FAVORABLE FOR FIRE STARTS WITH RAPID RATES OF 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. && $$ WYZ283-101815- /O.CON.KRIW.FW.W.0021.120810T1800Z-120811T0300Z/ UPPER WIND RIVER BASIN/WIND RIVER BASIN- 224 AM MDT FRI AUG 10 2012 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 9 PM MDT THIS EVENING FOR THUNDERSTORMS FOR FIRE WEATHER ZONE 283... * AFFECTED AREA...FIRE WEATHER ZONE 283. * THUNDERSTORMS...WIDELY SCATTERED WITH AN LAL OF 6. * OUTFLOW WINDS...AROUND 50 MPH. * RELATIVE HUMIDITY...AS LOW AS 16 PERCENT. * IMPACTS...STRONG WIND GUSTS...POSSIBLY OVER 50 MPH AND DRY LIGHTNING WILL COMBINE WITH LOW RELATIVE HUMIDITY AND DRY FUELS TO PRODUCE CONDITIONS FAVORABLE FOR FIRE STARTS WITH RAPID RATES OF SPREAD. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ HTTP://WEATHER.GOV/RIVERTON
838 WWUS85 KRIW 101748 RFWRIW URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 1148 AM MDT FRI AUG 10 2012 ...RED FLAG WARNING FOR DRY LIGHTNING...LOW RELATIVE HUMIDITY AND STRONG WIND GUSTS THIS AFTERNOON THROUGH THIS EVENING... .MONSOONAL MOISTURE WILL SPREAD NORTHWARD ACROSS THE STATE TODAY. WITH HEATING THIS AFTERNOON...THE AIR MASS WILL BECOME UNSTABLE WITH WIDELY SCATTERED TO SCATTERED HIGH BASED THUNDERSTORMS DEVELOPING. STRONG WIND GUSTS...POSSIBLY OVER 50 MPH AND DRY LIGHTNING WILL COMBINE WITH LOW RELATIVE HUMIDITY AND DRY FUELS TO PRODUCE CONDITIONS FAVORABLE FOR FIRE STARTS WITH RAPID RATES OF SPREAD. THE THREAT OF FIRE STARTS FROM THUNDERSTORMS WILL EXTEND ACROSS THE FORECAST AREA THROUGH THIS EVENING. WYZ279-289-110300- /O.CON.KRIW.FW.W.0020.000000T0000Z-120811T0300Z/ SWEETWATER COUNTY/ROCK SPRINGS BLM/FLAMING GORGE NRA- GRANITE/GREEN/FERRIS/RATTLESNAKE MOUNTAINS- 1148 AM MDT FRI AUG 10 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR DRY THUNDERSTORMS FOR FIRE WEATHER ZONES 279 AND 289... * AFFECTED AREA...FIRE WEATHER ZONES 279 AND 289. * THUNDERSTORMS...WIDELY SCATTERED WITH AN LAL OF 6. * OUTFLOW WINDS...AROUND 50 MPH. * RELATIVE HUMIDITY...AS LOW AS 15 PERCENT. * IMPACTS...STRONG WIND GUSTS...POSSIBLY OVER 50 MPH AND DRY LIGHTNING WILL COMBINE WITH LOW RELATIVE HUMIDITY AND DRY FUELS TO PRODUCE CONDITIONS FAVORABLE FOR FIRE STARTS WITH RAPID RATES OF 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. && $$ WYZ277-278-110300- /O.CON.KRIW.FW.W.0020.000000T0000Z-120811T0300Z/ LINCOLN AND UINTA COUNTIES/LOWER ELEVATIONS- UPPER GREEN RIVER BASIN/ROCK SPRINGS BLM- 1148 AM MDT FRI AUG 10 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR DRY THUNDERSTORMS FOR FIRE WEATHER ZONES 277 AND 278... * AFFECTED AREA...FIRE WEATHER ZONES 277 AND 278. * THUNDERSTORMS...WIDELY SCATTERED WITH AN LAL OF 6. * OUTFLOW WINDS...AROUND 50 MPH. * RELATIVE HUMIDITY...AS LOW AS 15 PERCENT. * IMPACTS...STRONG WIND GUSTS...POSSIBLY OVER 50 MPH AND DRY LIGHTNING WILL COMBINE WITH LOW RELATIVE HUMIDITY AND DRY FUELS TO PRODUCE CONDITIONS FAVORABLE FOR FIRE STARTS WITH RAPID RATES OF SPREAD. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ WYZ288-416-110300- /O.CON.KRIW.FW.W.0020.000000T0000Z-120811T0300Z/ EAST WIND RIVER MOUNTAINS/SOUTH SHOSHONE NF- WEST WIND RIVER MOUNTAINS/EAST ZONE BRIDGER TETON NF- 1148 AM MDT FRI AUG 10 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR DRY THUNDERSTORMS FOR FIRE WEATHER ZONES 288 AND 416... * AFFECTED AREA...FIRE WEATHER ZONES 288 AND 416. * THUNDERSTORMS...WIDELY SCATTERED WITH AN LAL OF 6. * OUTFLOW WINDS...AROUND 50 MPH. * RELATIVE HUMIDITY...AS LOW AS 20 PERCENT. * IMPACTS...STRONG WIND GUSTS...POSSIBLY OVER 50 MPH AND DRY LIGHTNING WILL COMBINE WITH LOW RELATIVE HUMIDITY AND DRY FUELS TO PRODUCE CONDITIONS FAVORABLE FOR FIRE STARTS WITH RAPID RATES OF 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. && $$ WYZ414-415-110300- /O.CON.KRIW.FW.W.0020.000000T0000Z-120811T0300Z/ SALT AND WYOMING RANGES/WEST ZONE BRIDGER TETON NF- NORTH ZONE BRIDGER TETON NF AND GRAND TETON NP- 1148 AM MDT FRI AUG 10 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR DRY THUNDERSTORMS FOR FIRE WEATHER ZONES 414 AND 415... * AFFECTED AREA...FIRE WEATHER ZONES 414 AND 415. * THUNDERSTORMS...WIDELY SCATTERED WITH AN LAL OF 6. * OUTFLOW WINDS...AROUND 50 MPH. * RELATIVE HUMIDITY...AS LOW AS 25 PERCENT. * IMPACTS...STRONG WIND GUSTS...POSSIBLY OVER 50 MPH AND DRY LIGHTNING WILL COMBINE WITH LOW RELATIVE HUMIDITY AND DRY FUELS TO PRODUCE CONDITIONS FAVORABLE FOR FIRE STARTS WITH RAPID RATES OF SPREAD. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ WYZ286-110300- /O.CON.KRIW.FW.W.0020.000000T0000Z-120811T0300Z/ ABSAROKA MOUNTAINS/NORTH SHOSHONE NF- 1148 AM MDT FRI AUG 10 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR DRY THUNDERSTORMS FOR FIRE WEATHER ZONE 286... * AFFECTED AREA...FIRE WEATHER ZONE 286. * THUNDERSTORMS...WIDELY SCATTERED WITH AN LAL OF 6. * OUTFLOW WINDS...AROUND 50 MPH. * RELATIVE HUMIDITY...AS LOW AS 20 PERCENT. * IMPACTS...STRONG WIND GUSTS...POSSIBLY OVER 50 MPH AND DRY LIGHTNING WILL COMBINE WITH LOW RELATIVE HUMIDITY AND DRY FUELS TO PRODUCE CONDITIONS FAVORABLE FOR FIRE STARTS WITH RAPID RATES OF 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. && $$ WYZ140-110300- /O.CON.KRIW.FW.W.0020.000000T0000Z-120811T0300Z/ YELLOWSTONE NATIONAL PARK- 1148 AM MDT FRI AUG 10 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR DRY THUNDERSTORMS FOR FIRE WEATHER ZONE 140... * AFFECTED AREA...FIRE WEATHER ZONE 140. * THUNDERSTORMS...WIDELY SCATTERED WITH AN LAL OF 6. * OUTFLOW WINDS...AROUND 50 MPH. * RELATIVE HUMIDITY...AS LOW AS 30 PERCENT. * IMPACTS...STRONG WIND GUSTS...POSSIBLY OVER 50 MPH AND DRY LIGHTNING WILL COMBINE WITH DRY FUELS TO PRODUCE CONDITIONS FAVORABLE FOR FIRE STARTS WITH RAPID RATES OF SPREAD. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ WYZ275-276-282-110300- /O.CON.KRIW.FW.W.0021.120810T1800Z-120811T0300Z/ NORTH BIG HORN BASIN/WORLAND BLM-CODY FOOTHILLS- SOUTH BIG HORN BASIN/WORLAND BLM- 1148 AM MDT FRI AUG 10 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR THUNDERSTORMS FOR FIRE WEATHER ZONES 275...276 AND 282... * AFFECTED AREA...FIRE WEATHER ZONES 275...276 AND 282. * THUNDERSTORMS...WIDELY SCATTERED WITH AN LAL OF 6. * OUTFLOW WINDS...AROUND 50 MPH. * RELATIVE HUMIDITY...AS LOW AS 15 PERCENT. * IMPACTS...STRONG WIND GUSTS...POSSIBLY OVER 50 MPH AND DRY LIGHTNING WILL COMBINE WITH LOW RELATIVE HUMIDITY AND DRY FUELS TO PRODUCE CONDITIONS FAVORABLE FOR FIRE STARTS WITH RAPID RATES OF 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. && $$ WYZ285-287-110300- /O.CON.KRIW.FW.W.0021.120810T1800Z-120811T0300Z/ SOUTH BIGHORN MOUNTAINS-OWL CREEK MOUNTAINS- 1148 AM MDT FRI AUG 10 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR THUNDERSTORMS FOR FIRE WEATHER ZONES 285 AND 287... * AFFECTED AREA...FIRE WEATHER ZONES 285 AND 287. * THUNDERSTORMS...WIDELY SCATTERED WITH AN LAL OF 6. * OUTFLOW WINDS...AROUND 50 MPH. * RELATIVE HUMIDITY...AS LOW AS 15 PERCENT. * IMPACTS...STRONG WIND GUSTS...POSSIBLY OVER 50 MPH AND DRY LIGHTNING WILL COMBINE WITH LOW RELATIVE HUMIDITY AND DRY FUELS TO PRODUCE CONDITIONS FAVORABLE FOR FIRE STARTS WITH RAPID RATES OF SPREAD. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ WYZ280-281-300-110300- /O.CON.KRIW.FW.W.0021.120810T1800Z-120811T0300Z/ NATRONA COUNTY/CASPER BLM-JOHNSON COUNTY/CASPER BLM- CASPER MOUNTAIN- 1148 AM MDT FRI AUG 10 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR THUNDERSTORMS FOR FIRE WEATHER ZONES 280...281 AND 300... * AFFECTED AREA...FIRE WEATHER ZONES 280...281 AND 300. * THUNDERSTORMS...WIDELY SCATTERED WITH AN LAL OF 6. * OUTFLOW WINDS...AROUND 50 MPH. * RELATIVE HUMIDITY...AS LOW AS 15 PERCENT. * IMPACTS...STRONG WIND GUSTS...POSSIBLY OVER 50 MPH AND DRY LIGHTNING WILL COMBINE WITH LOW RELATIVE HUMIDITY AND DRY FUELS TO PRODUCE CONDITIONS FAVORABLE FOR FIRE STARTS WITH RAPID RATES OF 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. && $$ WYZ283-110300- /O.CON.KRIW.FW.W.0021.120810T1800Z-120811T0300Z/ UPPER WIND RIVER BASIN/WIND RIVER BASIN- 1148 AM MDT FRI AUG 10 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR THUNDERSTORMS FOR FIRE WEATHER ZONE 283... * AFFECTED AREA...FIRE WEATHER ZONE 283. * THUNDERSTORMS...WIDELY SCATTERED WITH AN LAL OF 6. * OUTFLOW WINDS...AROUND 50 MPH. * RELATIVE HUMIDITY...AS LOW AS 15 PERCENT. * IMPACTS...STRONG WIND GUSTS...POSSIBLY OVER 50 MPH AND DRY LIGHTNING WILL COMBINE WITH LOW RELATIVE HUMIDITY AND DRY FUELS TO PRODUCE CONDITIONS FAVORABLE FOR FIRE STARTS WITH RAPID RATES OF SPREAD. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ HTTP://WEATHER.GOV/RIVERTON
711 WWUS85 KRIW 110257 RFWRIW URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 857 PM MDT FRI AUG 10 2012 ...RED FLAG WARNING ALLOWED TO EXPIRE... WYZ279-289-110400- /O.EXP.KRIW.FW.W.0020.000000T0000Z-120811T0300Z/ SWEETWATER COUNTY/ROCK SPRINGS BLM/FLAMING GORGE NRA- GRANITE/GREEN/FERRIS/RATTLESNAKE MOUNTAINS- 857 PM MDT FRI AUG 10 2012 ...RED FLAG WARNING WILL EXPIRE AT 9 PM MDT THIS EVENING FOR DRY THUNDERSTORMS FOR FIRE WEATHER ZONES 279 AND 289... THUNDERSTORM COVERAGE HAS WEAKENED THIS EVENING. WIDELY SCATTERED ACTIVITY WILL REMAIN POSSIBLE THROUGH THE OVERNIGHT HOURS...BUT SIGNIFICANT LIGHTNING AND WIND IS NO LONGER EXPECTED. $$ WYZ277-278-110400- /O.EXP.KRIW.FW.W.0020.000000T0000Z-120811T0300Z/ LINCOLN AND UINTA COUNTIES/LOWER ELEVATIONS- UPPER GREEN RIVER BASIN/ROCK SPRINGS BLM- 857 PM MDT FRI AUG 10 2012 ...RED FLAG WARNING WILL EXPIRE AT 9 PM MDT THIS EVENING FOR DRY THUNDERSTORMS FOR FIRE WEATHER ZONES 277 AND 278... THUNDERSTORM COVERAGE HAS WEAKENED THIS EVENING. WIDELY SCATTERED ACTIVITY WILL REMAIN POSSIBLE THROUGH THE OVERNIGHT HOURS...BUT SIGNIFICANT LIGHTNING AND WIND IS NO LONGER EXPECTED. $$ WYZ288-416-110400- /O.EXP.KRIW.FW.W.0020.000000T0000Z-120811T0300Z/ EAST WIND RIVER MOUNTAINS/SOUTH SHOSHONE NF- WEST WIND RIVER MOUNTAINS/EAST ZONE BRIDGER TETON NF- 857 PM MDT FRI AUG 10 2012 ...RED FLAG WARNING WILL EXPIRE AT 9 PM MDT THIS EVENING FOR DRY THUNDERSTORMS FOR FIRE WEATHER ZONES 288 AND 416... THUNDERSTORM COVERAGE HAS WEAKENED THIS EVENING. WIDELY SCATTERED ACTIVITY WILL REMAIN POSSIBLE THROUGH THE OVERNIGHT HOURS...BUT SIGNIFICANT LIGHTNING AND WIND IS NO LONGER EXPECTED. $$ WYZ414-415-110400- /O.EXP.KRIW.FW.W.0020.000000T0000Z-120811T0300Z/ SALT AND WYOMING RANGES/WEST ZONE BRIDGER TETON NF- NORTH ZONE BRIDGER TETON NF AND GRAND TETON NP- 857 PM MDT FRI AUG 10 2012 ...RED FLAG WARNING WILL EXPIRE AT 9 PM MDT THIS EVENING FOR DRY THUNDERSTORMS FOR FIRE WEATHER ZONES 414 AND 415... THUNDERSTORM COVERAGE HAS WEAKENED THIS EVENING. WIDELY SCATTERED ACTIVITY WILL REMAIN POSSIBLE THROUGH THE OVERNIGHT HOURS...BUT SIGNIFICANT LIGHTNING AND WIND IS NO LONGER EXPECTED. $$ WYZ286-110400- /O.EXP.KRIW.FW.W.0020.000000T0000Z-120811T0300Z/ ABSAROKA MOUNTAINS/NORTH SHOSHONE NF- 857 PM MDT FRI AUG 10 2012 ...RED FLAG WARNING WILL EXPIRE AT 9 PM MDT THIS EVENING FOR DRY THUNDERSTORMS FOR FIRE WEATHER ZONE 286... THUNDERSTORM COVERAGE HAS WEAKENED THIS EVENING. WIDELY SCATTERED ACTIVITY WILL REMAIN POSSIBLE THROUGH THE OVERNIGHT HOURS...BUT SIGNIFICANT LIGHTNING AND WIND IS NO LONGER EXPECTED. $$ WYZ140-110400- /O.EXP.KRIW.FW.W.0020.000000T0000Z-120811T0300Z/ YELLOWSTONE NATIONAL PARK- 857 PM MDT FRI AUG 10 2012 ...RED FLAG WARNING WILL EXPIRE AT 9 PM MDT THIS EVENING FOR DRY THUNDERSTORMS FOR FIRE WEATHER ZONE 140... THUNDERSTORM COVERAGE HAS WEAKENED THIS EVENING. WIDELY SCATTERED ACTIVITY WILL REMAIN POSSIBLE THROUGH THE OVERNIGHT HOURS...BUT SIGNIFICANT LIGHTNING AND WIND IS NO LONGER EXPECTED. $$ WYZ275-276-282-110400- /O.EXP.KRIW.FW.W.0021.000000T0000Z-120811T0300Z/ NORTH BIG HORN BASIN/WORLAND BLM-CODY FOOTHILLS- SOUTH BIG HORN BASIN/WORLAND BLM- 857 PM MDT FRI AUG 10 2012 ...RED FLAG WARNING WILL EXPIRE AT 9 PM MDT THIS EVENING FOR THUNDERSTORMS FOR FIRE WEATHER ZONES 275...276 AND 282... THUNDERSTORM INTENSITY HAS WEAKENED THIS EVENING. WIDELY SCATTERED ACTIVITY WILL REMAIN POSSIBLE THROUGH THE OVERNIGHT HOURS...BUT SIGNIFICANT LIGHTNING AND WIND IS NO LONGER EXPECTED. $$ WYZ285-287-110400- /O.EXP.KRIW.FW.W.0021.000000T0000Z-120811T0300Z/ SOUTH BIGHORN MOUNTAINS-OWL CREEK MOUNTAINS- 857 PM MDT FRI AUG 10 2012 ...RED FLAG WARNING WILL EXPIRE AT 9 PM MDT THIS EVENING FOR THUNDERSTORMS FOR FIRE WEATHER ZONES 285 AND 287... THUNDERSTORM INTENSITY HAS WEAKENED THIS EVENING. WIDELY SCATTERED ACTIVITY WILL REMAIN POSSIBLE THROUGH THE OVERNIGHT HOURS...BUT SIGNIFICANT LIGHTNING AND WIND IS NO LONGER EXPECTED. $$ WYZ280-281-300-110400- /O.EXP.KRIW.FW.W.0021.000000T0000Z-120811T0300Z/ NATRONA COUNTY/CASPER BLM-JOHNSON COUNTY/CASPER BLM- CASPER MOUNTAIN- 857 PM MDT FRI AUG 10 2012 ...RED FLAG WARNING WILL EXPIRE AT 9 PM MDT THIS EVENING FOR THUNDERSTORMS FOR FIRE WEATHER ZONES 280...281 AND 300... THUNDERSTORM INTENSITY HAS WEAKENED THIS EVENING. WIDELY SCATTERED ACTIVITY WILL REMAIN POSSIBLE THROUGH THE OVERNIGHT HOURS...BUT SIGNIFICANT LIGHTNING AND WIND IS NO LONGER EXPECTED. $$ WYZ283-110400- /O.EXP.KRIW.FW.W.0021.000000T0000Z-120811T0300Z/ UPPER WIND RIVER BASIN/WIND RIVER BASIN- 857 PM MDT FRI AUG 10 2012 ...RED FLAG WARNING WILL EXPIRE AT 9 PM MDT THIS EVENING FOR THUNDERSTORMS FOR FIRE WEATHER ZONE 283... THUNDERSTORM COVERAGE HAS WEAKENED THIS EVENING. WIDELY SCATTERED ACTIVITY WILL REMAIN POSSIBLE THROUGH THE OVERNIGHT HOURS...BUT SIGNIFICANT LIGHTNING AND WIND IS NO LONGER EXPECTED. $$ 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 Aug 9, 2:30 AM MDT, 5 minutes earlier.
Area forecast discussion, Aug 9, 2:30 AM MDT, 5 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE RIVERTON WY 230 AM MDT THU AUG 9 2012 .SHORT TERM...TODAY THROUGH SATURDAY NIGHT AN AMPLIFIED AXIS OF A RIDGE OF HIGH PRESSURE WILL CONTINUE TO SLIDE EAST THROUGH THE STATE TODAY...WITH SOME MOISTURE BEING BROUGHT IN WITH ITS DEPARTURE. THOUGH THE RIDGE AXIS WILL SLIDE THROUGH...HIGH PRESSURE REMAINS OVER THE FOUR CORNERS REGION TODAY. SOME HIGH LEVEL MOISTURE WILL MOVE OVER THE AREA...ENOUGH TO GENERATE THUNDERSTORM ACTIVITY ACROSS WESTERN WYOMING...AND THE NORTHERN MOUNTAINS. HOWEVER...WITH PWATS REMAINING LOW...THUNDERSTORMS SHOULD PRODUCE LITTLE TO NO PRECIPITATION. THESE DRY THUNDERSTORMS WILL HOST THE POTENTIAL TO DEVELOP STRONG WIND ALONG WITH THEM. THE COMBINATION OF DRY LIGHTNING AND GUSTY WIND HAS RISEN FIRE WEATHER CONCERNS FOR AREAS WEST OF THE CONTINENTAL DIVIDE THROUGH THE EVENING HOURS. A RED FLAG WARNING IS IN EFFECT...AND DETAILS REGARDING THIS SITUATION CAN BE FOUND IN THE FIRE WEATHER PRODUCTS. CONDITIONS WILL IMPROVE IN THE LATE EVENING AS THE ATMOSPHERE GAINS SOME MOISTURE...AND STABILIZES SLIGHTLY. HOWEVER...MODELS CONTINUE TO INDICATE A POTENTIALLY MORE UNSTABLE ENVIRONMENT FRIDAY AFTERNOON. LIFTED INDEX VALUES OF NEGATIVE 2 TO NEGATIVE 4 HAVE BEEN OBSERVED IN CURRENT ANALYSIS...ALONG WITH INCREASED CAPE VALUES. MODELS ALSO SEEM TO TRY TO PUT A SLIGHTLY NEGATIVE TILT ON THE DISTURBANCE MOVING THROUGH THE AREA...WHICH MAY INDICATE SOME STRONGER STORM DEVELOPMENT. THE MAJORITY OF THE WIDESPREAD INSTABILITY WILL BE FOUND WEST OF THE DIVIDE. SOME STORMS OVER THESE AREAS MAY PRODUCE GUSTY WIND AND SMALL HAIL. STRONGER STORMS...WITH INCREASED SHOWER COVERAGE MAY ALSO INCREASE FRIDAY EVENING...AS A COLD FRONT IMPACTS THE AREA. COVERAGE WILL WEAKEN BY SATURDAY AFTERNOON AS THE FRONT MOVES EAST OF THE CWA. A BUILDING RIDGE WILL BE ON THE HEELS OF THE DEPARTING DISTURBANCE. THIS RIDGE WILL AGAIN REDUCE SHOWER ACTIVITY BY SATURDAY EVENING...WITH ONLY SOME ISOLATED MOUNTAIN SHOWERS ANTICIPATED. .LONG TERM...SUNDAY THROUGH THURSDAY IN WAKE OF SHORTWAVE TROUGH FRIDAY NIGHT/SATURDAY...THE SUBTROPICAL HIGH AND MUCH OF THE MONSOONAL MOISTURE WILL BE SUPPRESSED SOUTH OF THE AREA SUNDAY AND MONDAY. THE FORECAST AREA WILL HAVE MODEST WESTERLY FLOW BOTH DAYS AND WEAK DISTURBANCES IN THE FLOW COMBINED WITH DAYTIME HEATING COULD CONTINUE TO SPARK OF ISOLATED DIURNAL CONVECTION...MAINLY OVER THE HIGHER TERRAIN. THE FOCUS THEN SHIFTS TO AN UPPER LOW/TROUGH THAT IS PROGGED BY MEDIUM RANGE MODELS TO DIG INTO SOUTHERN BRITISH COLUMBIA MONDAY NIGHT. THERE REMAINS A LARGE SPREAD IN GUIDANCE ON HOW THIS FEATURE WILL EVOLVE AS IT HEADS EAST DURING THE MIDDLE OF NEXT WEEK. THE MAIN IMPACTS FROM THIS SYSTEM SHOULD OCCUR WEDNESDAY AND/OR THURSDAY. AHEAD OF THIS FEATURE ON TUESDAY...MONSOONAL MOISTURE WILL PROBABLY SURGE NORTHWARD GIVING ISOLATED TO SCATTERED CONVECTION ACROSS MUCH OF THE AREA. TEMPERATURES ARE EXPECTED TO BE 5 TO 10 DEGREES ABOVE AVERAGE THROUGH TUESDAY. CURRENTLY IT APPEARS THE MAIN COLD FRONT WITH THE AFOREMENTIONED STORM SYSTEM WILL SURGE ACROSS THE AREA WEDNESDAY NIGHT/THURSDAY...WITH BELOW AVERAGE TEMPERATURES POSSIBLE THURSDAY...ESPECIALLY ACROSS THE NORTH. && .AVIATION.../12Z ISSUANCE/ ISOLATED SHOWER ACTIVITY WILL CONTINUE OVER THE WESTERN AND NORTHERN WYOMING MOUNTAINS THIS MORNING WITH VFR CONDITIONS AT ALL TERMINALS THROUGH 18Z. THUNDERSTORM ACTIVITY WILL BEGIN IN THE AFTERNOON MAINLY IN THE WEST WITH TSRA POSSIBLY AFFECTING ALL TERMINALS WEST OF A KLND TO KCOD LINE. GREATEST CHANCE WILL BE AROUND KJAC AND KCOD. A COLD FRONT WILL MOVE INTO NORTHERN WYOMING AFTER ABOUT 21Z BRINGING A NORTHERLY WIND SHIFT REACHING A KLND-KCPR BY 02Z FRIDAY. WIND BEHIND THE FRONT SHOULD GUST TO 15-20KT BUT DISSIPATE IN MOST AREAS BY 08Z. && .FIRE WEATHER... DRY THUNDERSTORMS WILL BE POSSIBLE WEST OF THE CONTINENTAL DIVIDE THIS AFTERNOON...WITH SOME LESSER COVERAGE ALSO POSSIBLE OVER THE NORTHERN MOUNTAINS. STORMS MAY CONTAIN GUSTY WIND AND LIGHTNING...WHICH WILL COMBINE WITH DRY SURFACE CONDITIONS TO CREATE EXTREME FIRE BEHAVIOR THIS AFTERNOON AND INTO THE EVENING HOURS. A RED FLAG WARNING IS IN EFFECT FOR AREAS WEST OF THE CONTINENTAL DIVIDE. ADDITIONAL DETAILS CAN BE FOUND IN OUR FIRE WEATHER PRODUCTS. INCREASED MOISTURE WILL DEVELOP THIS EVENING AND CONTINUE THROUGH FRIDAY. SHOWERS AND THUNDERSTORMS WILL BE POSSIBLE ACROSS MUCH OF THE AREA. SOME STORMS MAY BE STRONG WITH STRONG WIND...WITH COVERAGE LASTING INTO THE LATE EVENING HOURS. THIS SCENARIO WILL CONTINUE TO BE MONITORED. ANOTHER AREA OF HIGH PRESSURE IS THEN EXPECTED TO MOVE OVER THE AREA SATURDAY AFTERNOON. && .RIW WATCHES/WARNINGS/ADVISORIES... RED FLAG WARNING FROM NOON TODAY TO 9 PM MDT THIS EVENING WYZ140-277>279-286-288-289-414>416. && SHORT TERM...BRANHAM LONG TERM...WM AVIATION...BERC FIRE WEATHER...BRANHAM
Hazardous weather outlook, Aug 8, 4:00 AM MDT, 22 hours 35 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE RIVERTON WY 400 AM MDT WED AUG 8 2012 WYZ001>020-022>030-091200- 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- 400 AM MDT WED AUG 8 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN AND CENTRAL WYOMING. .DAY ONE...TODAY AND TONIGHT A FEW THUNDERSTORMS WILL BE POSSIBLE ACROSS THE WESTERN MOUNTAINS. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY THURSDAY...ISOLATED THUNDERSTORMS...MAINLY IN THE MOUNTAINS AND WEST. FRIDAY THROUGH TUESDAY...WIDELY SCATTERED TO SCATTERED MOUNTAIN THUNDERSTORMS WITH ISOLATED TO WIDELY SCATTERED THUNDERSTORMS ACROSS THE LOWER ELEVATIONS EACH DAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY AND TONIGHT. TEAM RIVERTON
The office that day
Everything else NWS Riverton, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 9, 12:19 PM MDT | Red Flag Warning | RIW | Big Horn, Fremont, Hot Springs, Johnson, Natrona, Park and 1 more | 33 hr |
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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.