Alert archive / Wyoming / Red Flag Warnings in 2012
Red Flag Warning 21, NWS Riverton, WY
NWS Riverton, WY issued this red flag warning at Aug 9, 2012, 12:19 PM MDT for 7 counties in Wyoming. It took effect at Aug 10, 2012, 12:00 PM MDT. It was in force for 9 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Aug 9, 2012, 12:19 PM MDT (18:19 UTC)
- In effect from
- Aug 10, 2012, 12:00 PM MDT
- Expired
- Aug 10, 2012, 9:00 PM MDT
- In force
- 9 hr
- Issued by
- NWS Riverton, WY
Counties Big Horn County, WY, Fremont County, WY, Hot Springs County, WY, Johnson County, WY, Natrona County, WY, Park County, WY, Washakie County, WY
The radar
The Riverton/Lander radar (KRIW), 93 km from the middle of the area, began a volume at 18:20 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 12:00Z, 6.3 hours before the alert went out and 90 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
- 3442 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 52 m²/s²
- 0-3 km storm-relative helicity
- 82 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
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
3 follow-up statements
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
The office that day
Everything else NWS Riverton, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 9, 2:35 AM MDT | Red Flag Warning | RIW | Fremont, Hot Springs, Lincoln, Natrona, Park, Sublette and 3 more | 42 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.