Alert archive / Wyoming / High Wind Warnings in 2012
High Wind Warning 35, NWS Riverton, WY
NWS Riverton, WY issued this high wind warning at Dec 16, 2012, 2:31 PM MST for 4 counties in Wyoming. It took effect at Dec 17, 2012, 2:00 AM MST. It was in force for 17 hr. 18 reports 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
- Dec 16, 2012, 2:31 PM MST (21:31 UTC)
- In effect from
- Dec 17, 2012, 2:00 AM MST
- Expired
- Dec 17, 2012, 7:01 PM MST
- In force
- 17 hr
- Issued by
- NWS Riverton, WY
Counties Fremont County, WY, Hot Springs County, WY, Natrona County, WY, Sweetwater County, WY
The radar
The Riverton/Lander radar (KRIW), 34 km from the middle of the area, began a volume at 21:29 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 |
|---|---|---|---|
| Dec 17, 6:08 AM MST | SNOW 4 | 23 Nw Dubois, WY | BROOKS LAKE LODGE |
| Dec 17, 1:58 PM MST | HEAVY SNOW 8 | 11 N Dubois, WY | BURROUGHS CREEK SNOTEL |
| Dec 17, 1:59 PM MST | SNOW 3 | 16 Ne Dubois, WY | CASTLE CREEK SNOTEL |
| Dec 17, 2:03 PM MST | SNOW 2 | 40 W Thermopolis, WY | OWL CREEK SNOTEL |
| Dec 17, 2:09 PM MST | SNOW 4 | 14 W Crowheart, WY | COLD SPRINGS SNOTEL |
| Dec 17, 2:09 PM MST | HEAVY SNOW 8 | 18 W Lander, WY | HOBBS PARK SNOTEL |
| Dec 17, 2:09 PM MST | HEAVY SNOW 12 | 19 Ssw Lander, WY | DEER PARK SNOTEL |
| Dec 17, 2:10 PM MST | SNOW 4 | 12 Sw Lander, WY | TOWNSEND CREEK SNOTEL |
| Dec 17, 2:10 PM MST | SNOW 4 | 6 Wsw Dubois, WY | LITTLE WARM SNOTEL |
| Dec 17, 2:10 PM MST | HEAVY SNOW 6 | 26 Nw Lander, WY | ST. LAWRENCE ALT SNOTEL |
| Dec 17, 2:10 PM MST | HEAVY SNOW 10 | 7 Nw Atlantic City, WY | SOUTH PASS SNOTEL |
| Dec 17, 6:19 PM MST | SNOW 0.5 | Rock Springs, WY | |
| Dec 17, 6:19 PM MST | SNOW 1 | 1 E Rock Springs, WY | |
| Dec 17, 6:22 PM MST | SNOW 1 | Green River, WY | |
| Dec 17, 7:02 PM MST | HEAVY SNOW 9 | 4 Ene South Pass City, WY | |
| Dec 17, 7:05 PM MST | SNOW 3 | 16 Ne Dubois, WY | CASTLE CREEK SNOTEL |
| Dec 17, 7:05 PM MST | HEAVY SNOW 8 | 11 N Dubois, WY | BURROUGHS CREEK SNOTEL |
| Dec 17, 7:06 PM MST | SNOW 2 | 40 W Thermopolis, WY | OWL CREEK SNOTEL |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Riverton, WY (KRIW), launched 12:00Z, 9.5 hours before the alert went out and 30 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
- 1680 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 67 m²/s²
- 0-3 km storm-relative helicity
- 81 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
650 WWUS75 KRIW 162131 NPWRIW URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 231 PM MST SUN DEC 16 2012 ...VERY STRONG WINDS EXPECTED ACROSS PORTIONS OF CENTRAL WYOMING LATER TONIGHT THROUGH MONDAY EVENING... ...VERY STRONG WINDS STILL POSSIBLE IN THE LANDER FOOTHILLS AND HOT SPRINGS COUNTY LATER TONIGHT AND MONDAY... .HIGH WINDS ARE LIKELY BETWEEN JEFFREY CITY AND CASPER FROM LATER TONIGHT THROUGH MONDAY EVENING. THE WINDS MAY REACH HIGH WIND CRITERIA AS EARLY AS 2 AM IN THE GREEN MOUNTAINS AND RATTLESNAKE RANGE AND 5 AM IN THE CASPER AREA. WINDS WILL PEAK MONDAY AFTERNOON AHEAD OF A STRONG COLD FRONT. HIGH WINDS MAY ALSO STILL DEVELOP IN THE LANDER FOOTHILLS AND ACROSS HOT SPRINGS COUNTY LATER TONIGHT THROUGH MONDAY AFTERNOON. WYZ003-162245- /O.CAN.KRIW.HW.A.0034.121217T0600Z-121217T1500Z/ CODY FOOTHILLS- INCLUDING THE CITIES OF...CODY...MEETEETSE 231 PM MST SUN DEC 16 2012 ...HIGH WIND WATCH IS CANCELLED... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS CANCELLED THE HIGH WIND WATCH. WIDESPREAD HIGH WINDS ARE NO LONGER EXPECTED ACROSS THE AREA LATER TONIGHT. HOWEVER...STRONG WEST WINDS ARE STILL EXPECTED TO DEVELOP AT SPEEDS OF 30 TO 40 MPH WITH GUSTS OF 50 TO 60 MPH AROUND AND JUST SOUTH OF CLARK. WIND GUSTS COULD ALSO GUST 40 TO 50 MPH ON THE WEST SIDE OF CODY AND JUST SOUTH OF CODY. $$ WYZ019-170915- /O.UPG.KRIW.HW.A.0034.121217T0900Z-121218T0300Z/ /O.NEW.KRIW.HW.W.0035.121217T0900Z-121218T0300Z/ GREEN MOUNTAINS AND RATTLESNAKE RANGE- INCLUDING THE CITY OF...JEFFREY CITY 231 PM MST SUN DEC 16 2012 ...HIGH WIND WARNING IN EFFECT FROM 2 AM TO 8 PM MST MONDAY... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A HIGH WIND WARNING...WHICH IS IN EFFECT FROM 2 AM TO 8 PM MST MONDAY. THE HIGH WIND WATCH IS NO LONGER IN EFFECT. * SUMMARY AND TIMING...A RAPIDLY INCREASING SURFACE PRESSURE GRADIENT WILL COMBINE WITH VERY STRONG MOUNTAIN TOP FLOW TO PRODUCE HIGH WINDS ACROSS THE AREA LATER TONIGHT THROUGH EARLY MONDAY EVENING. * WIND...SOUTHWEST 30 TO 40 MPH WITH GUSTS AROUND 60 MPH. THE STRONGEST WINDS WILL OCCUR DURING THE DAY MONDAY. * IMPACTS...TRAVELERS HEADING OVER BEAVER RIM OR TRAVELING BETWEEN SWEETWATER STATION AND MUDDY GAP SHOULD BE PREPARED FOR VERY STRONG AND ERRATIC WIND GUSTS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ020-170915- /O.UPG.KRIW.HW.A.0034.121217T1200Z-121218T0300Z/ /O.NEW.KRIW.HW.W.0035.121217T1200Z-121218T0300Z/ NATRONA COUNTY LOWER ELEVATIONS- INCLUDING THE CITY OF...CASPER 231 PM MST SUN DEC 16 2012 ...HIGH WIND WARNING IN EFFECT FROM 5 AM TO 8 PM MST MONDAY... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A HIGH WIND WARNING...WHICH IS IN EFFECT FROM 5 AM TO 8 PM MST MONDAY. THE HIGH WIND WATCH IS NO LONGER IN EFFECT. * SUMMARY AND TIMING...VERY STRONG WINDS WILL DEVELOP ON MONDAY AS AN INCREASING SURFACE PRESSURE GRADIENT COMBINES WITH VERY STRONG MOUNTAIN TOP WINDS. THE HIGHEST LIKELIHOOD OF THESE WINDS WILL BE MONDAY AFTERNOON. * WIND...SOUTHWEST 30 TO 40 MPH WITH GUSTS TO 60 MPH. * IMPACTS...TRAVELERS HEADING NORTH ON INTERSTATE 25 BETWEEN CASPER AND MIDWEST SHOULD BE PREPARED FOR VERY STRONG AND ERRATIC CROSS WINDS ON MONDAY. THESE STRONG WINDS WILL ALSO AFFECT THE TRAVEL WEST TOWARDS WALTMAN AND HILAND ON HIGHWAY 20 26. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ005-018-170915- /O.CON.KRIW.HW.A.0034.121217T0900Z-121217T2100Z/ SOUTHWEST BIG HORN BASIN-LANDER FOOTHILLS- INCLUDING THE CITIES OF...THERMOPOLIS...LANDER 231 PM MST SUN DEC 16 2012 ...HIGH WIND WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH MONDAY AFTERNOON... A HIGH WIND WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH MONDAY AFTERNOON. * SUMMARY AND TIMING...A RAPIDLY INCREASING SURFACE PRESSURE GRADIENT MAY COMBINE WITH VERY STRONG MOUNTAIN TOP FLOW TO PRODUCE HIGH WINDS ACROSS THE AREA LATER TONIGHT THROUGH MONDAY AFTERNOON. * WIND...SOUTHWEST 30 TO 40 MPH WITH GUSTS AROUND 60 MPH. THE STRONGEST WINDS WILL OCCUR DURING MONDAY MORNING. * IMPACTS...STRONG CROSS WINDS WILL MAKE TRAVEL HAZARDOUS IN LIGHT WEIGHT AND HIGH PROFILE VEHICLES. OTHER OUTDOOR ACTIVITIES MAY BECOME DIFFICULT. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A HIGH WIND WATCH MEANS CONDITIONS ARE FAVORABLE FOR A HAZARDOUS HIGH WIND EVENT IN AND CLOSE TO THE WATCH AREA. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ SKRBAC
5 follow-up statements
178 WWUS75 KRIW 170300 NPWRIW URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 800 PM MST SUN DEC 16 2012 ...VERY STRONG WINDS EXPECTED ACROSS PORTIONS OF CENTRAL WYOMING LATER TONIGHT THROUGH MONDAY EVENING... .HIGH WINDS ARE LIKELY BETWEEN JEFFREY CITY AND CASPER FROM LATER TONIGHT THROUGH MONDAY EVENING. THE WINDS MAY REACH HIGH WIND CRITERIA AS EARLY AS 2 AM IN THE GREEN MOUNTAINS AND RATTLESNAKE RANGE AND 5 AM IN THE CASPER AREA. WINDS IN NATRONA COUNTY WILL PEAK MONDAY AFTERNOON AHEAD OF A STRONG COLD FRONT. HIGH WINDS ARE ALSO LIKELY ACROSS THE LANDER FOOTHILLS AND HOT SPRINGS COUNTY FROM LATE TONIGHT THROUGH EARLY MONDAY AFTERNOON WITH THE STRONGEST WINDS LIKELY BETWEEN 5 AND 11 AM ON MONDAY. WYZ005-018-171100- /O.UPG.KRIW.HW.A.0034.121217T0900Z-121217T2100Z/ /O.EXB.KRIW.HW.W.0035.121217T0900Z-121217T2100Z/ SOUTHWEST BIG HORN BASIN-LANDER FOOTHILLS- INCLUDING THE CITIES OF...THERMOPOLIS...LANDER 800 PM MST SUN DEC 16 2012 ...HIGH WIND WARNING IN EFFECT FROM 2 AM TO 2 PM MST MONDAY... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A HIGH WIND WARNING...WHICH IS IN EFFECT FROM 2 AM TO 2 PM MST MONDAY. THE HIGH WIND WATCH IS NO LONGER IN EFFECT. * SUMMARY AND TIMING...A RAPIDLY INCREASING SURFACE PRESSURE GRADIENT WILL COMBINE WITH VERY STRONG MOUNTAIN TOP FLOW TO PRODUCE HIGH WINDS ACROSS THE AREA LATER TONIGHT THROUGH MONDAY AFTERNOON. * WIND...SOUTHWEST 30 TO 40 MPH WITH GUSTS AROUND 60 MPH. THE STRONGEST WINDS ARE LIKELY FROM 5 AM THROUGH 11 AM. * IMPACTS...STRONG CROSS WINDS WILL MAKE TRAVEL HAZARDOUS IN LIGHT WEIGHT AND HIGH PROFILE VEHICLES. OTHER OUTDOOR ACTIVITIES MAY BECOME DIFFICULT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ019-171100- /O.CON.KRIW.HW.W.0035.121217T0900Z-121218T0300Z/ GREEN MOUNTAINS AND RATTLESNAKE RANGE- INCLUDING THE CITY OF...JEFFREY CITY 800 PM MST SUN DEC 16 2012 ...HIGH WIND WARNING REMAINS IN EFFECT FROM 2 AM TO 8 PM MST MONDAY... A HIGH WIND WARNING REMAINS IN EFFECT FROM 2 AM TO 8 PM MST MONDAY. * SUMMARY AND TIMING...A RAPIDLY INCREASING SURFACE PRESSURE GRADIENT WILL COMBINE WITH VERY STRONG MOUNTAIN TOP FLOW TO PRODUCE HIGH WINDS ACROSS THE AREA LATER TONIGHT THROUGH EARLY MONDAY EVENING. * WIND...SOUTHWEST 30 TO 40 MPH WITH GUSTS AROUND 60 MPH. THE STRONGEST WINDS WILL OCCUR DURING THE DAY MONDAY. * IMPACTS...TRAVELERS HEADING OVER BEAVER RIM OR TRAVELING BETWEEN SWEETWATER STATION AND MUDDY GAP SHOULD BE PREPARED FOR VERY STRONG AND ERRATIC WIND GUSTS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ020-171100- /O.CON.KRIW.HW.W.0035.121217T1200Z-121218T0300Z/ NATRONA COUNTY LOWER ELEVATIONS- INCLUDING THE CITY OF...CASPER 800 PM MST SUN DEC 16 2012 ...HIGH WIND WARNING REMAINS IN EFFECT FROM 5 AM TO 8 PM MST MONDAY... A HIGH WIND WARNING REMAINS IN EFFECT FROM 5 AM TO 8 PM MST MONDAY. * SUMMARY AND TIMING...VERY STRONG WINDS WILL DEVELOP ON MONDAY AS AN INCREASING SURFACE PRESSURE GRADIENT COMBINES WITH VERY STRONG MOUNTAIN TOP WINDS. THE HIGHEST LIKELIHOOD OF THESE WINDS WILL BE MONDAY AFTERNOON. * WIND...SOUTHWEST 30 TO 40 MPH WITH GUSTS TO 60 MPH. * IMPACTS...TRAVELERS HEADING NORTH ON INTERSTATE 25 BETWEEN CASPER AND MIDWEST SHOULD BE PREPARED FOR VERY STRONG AND ERRATIC CROSS WINDS ON MONDAY. THESE STRONG WINDS WILL ALSO AFFECT THE TRAVEL WEST TOWARDS WALTMAN AND HILAND ON HIGHWAY 20 26. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$
783 WWUS75 KRIW 170907 NPWRIW URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 207 AM MST MON DEC 17 2012 ...VERY STRONG WINDS EXPECTED ACROSS PORTIONS OF CENTRAL WYOMING THROUGH THIS EVENING... .HIGH WINDS ARE LIKELY BETWEEN JEFFREY CITY AND CASPER THROUGH THIS EVENING. WINDS IN NATRONA COUNTY WILL PEAK THIS AFTERNOON AHEAD OF A STRONG COLD FRONT. HIGH WINDS ARE ALSO LIKELY ACROSS THE LANDER FOOTHILLS AND HOT SPRINGS COUNTY THROUGH EARLY THIS AFTERNOON WITH THE STRONGEST WINDS LIKELY BETWEEN 5 AND 11 AM ON MONDAY. WYZ019-172000- /O.CON.KRIW.HW.W.0035.000000T0000Z-121218T0300Z/ GREEN MOUNTAINS AND RATTLESNAKE RANGE- INCLUDING THE CITY OF...JEFFREY CITY 207 AM MST MON DEC 17 2012 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS EVENING... * SUMMARY AND TIMING...A RAPIDLY INCREASING SURFACE PRESSURE GRADIENT WILL COMBINE WITH VERY STRONG MOUNTAIN TOP FLOW TO PRODUCE HIGH WINDS ACROSS THE AREA THROUGH EARLY THIS EVENING. * WIND...SOUTHWEST 30 TO 40 MPH WITH GUSTS AROUND 60 MPH. THE STRONGEST WINDS WILL OCCUR DURING THE DAY TODAY. * IMPACTS...TRAVELERS HEADING OVER BEAVER RIM OR TRAVELING BETWEEN SWEETWATER STATION AND MUDDY GAP SHOULD BE PREPARED FOR VERY STRONG AND ERRATIC WIND GUSTS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ020-172000- /O.CON.KRIW.HW.W.0035.121217T1200Z-121218T0300Z/ NATRONA COUNTY LOWER ELEVATIONS- INCLUDING THE CITY OF...CASPER 207 AM MST MON DEC 17 2012 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS EVENING... * SUMMARY AND TIMING...VERY STRONG WINDS WILL DEVELOP TODAY AS AN INCREASING SURFACE PRESSURE GRADIENT COMBINES WITH VERY STRONG MOUNTAIN TOP WINDS. THE HIGHEST LIKELIHOOD OF THESE WINDS WILL BE THIS AFTERNOON. * WIND...SOUTHWEST 30 TO 40 MPH WITH GUSTS TO 60 MPH. * IMPACTS...TRAVELERS HEADING NORTH ON INTERSTATE 25 BETWEEN CASPER AND MIDWEST SHOULD BE PREPARED FOR VERY STRONG AND ERRATIC CROSS WINDS TODAY. THESE STRONG WINDS WILL ALSO AFFECT THE TRAVEL WEST TOWARDS WALTMAN AND HILAND ON HIGHWAY 20 26. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ005-018-172000- /O.CON.KRIW.HW.W.0035.000000T0000Z-121217T2100Z/ SOUTHWEST BIG HORN BASIN-LANDER FOOTHILLS- INCLUDING THE CITIES OF...THERMOPOLIS...LANDER 207 AM MST MON DEC 17 2012 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 PM MST THIS AFTERNOON... * SUMMARY AND TIMING...A RAPIDLY INCREASING SURFACE PRESSURE GRADIENT WILL COMBINE WITH VERY STRONG MOUNTAIN TOP FLOW TO PRODUCE HIGH WINDS ACROSS THE AREA THROUGH EARLY THIS AFTERNOON. * WIND...SOUTHWEST 30 TO 40 MPH WITH GUSTS AROUND 60 MPH. THE STRONGEST WINDS ARE LIKELY FROM 5 AM THROUGH 11 AM. * IMPACTS...STRONG CROSS WINDS WILL MAKE TRAVEL HAZARDOUS IN LIGHT WEIGHT AND HIGH PROFILE VEHICLES. OTHER OUTDOOR ACTIVITIES MAY BECOME DIFFICULT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$
799 WWUS75 KRIW 171739 NPWRIW URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 1039 AM MST MON DEC 17 2012 ...VERY STRONG WINDS EXPECTED ACROSS PORTIONS OF CENTRAL WYOMING THROUGH THIS EVENING... .HIGH WINDS ARE LIKELY BETWEEN JEFFREY CITY AND CASPER THROUGH THIS EVENING. WINDS IN NATRONA COUNTY WILL PEAK THIS AFTERNOON AHEAD OF A STRONG COLD FRONT. HIGH WINDS ARE ALSO LIKELY ACROSS THE LANDER FOOTHILLS AND HOT SPRINGS COUNTY THROUGH EARLY THIS AFTERNOON. WYZ019-172130- /O.CON.KRIW.HW.W.0035.000000T0000Z-121218T0300Z/ GREEN MOUNTAINS AND RATTLESNAKE RANGE- INCLUDING THE CITY OF...JEFFREY CITY 1039 AM MST MON DEC 17 2012 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS EVENING... A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS EVENING. * SUMMARY AND TIMING...A RAPIDLY INCREASING SURFACE PRESSURE GRADIENT WILL COMBINE WITH VERY STRONG MOUNTAIN TOP FLOW TO PRODUCE HIGH WINDS ACROSS THE AREA THROUGH EARLY THIS EVENING. * WIND...SOUTHWEST 30 TO 40 MPH WITH GUSTS AROUND 60 MPH. THE STRONGEST WINDS WILL OCCUR DURING THE DAY TODAY. EVEN STRONGER GUSTS AROUND 70 MPH WILL OCCUR IN THE MOUNTAINS AND SOUTHWEST FAVORED AREAS AROUND MUDDY GAP AND FALES ROCK. * IMPACTS...TRAVELERS HEADING OVER BEAVER RIM OR TRAVELING BETWEEN SWEETWATER STATION AND MUDDY GAP SHOULD BE PREPARED FOR VERY STRONG AND ERRATIC WIND GUSTS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ020-172130- /O.CON.KRIW.HW.W.0035.000000T0000Z-121218T0300Z/ NATRONA COUNTY LOWER ELEVATIONS- INCLUDING THE CITY OF...CASPER 1039 AM MST MON DEC 17 2012 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS EVENING... A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS EVENING. * SUMMARY AND TIMING...VERY STRONG WINDS WILL DEVELOP TODAY AS AN INCREASING SURFACE PRESSURE GRADIENT COMBINES WITH VERY STRONG MOUNTAIN TOP WINDS. THE STRONGEST WINDS WILL BE THIS AFTERNOON. * WIND...SOUTHWEST 30 TO 40 MPH WITH GUSTS TO 60 MPH. * IMPACTS...TRAVELERS HEADING NORTH ON INTERSTATE 25 BETWEEN CASPER AND MIDWEST SHOULD BE PREPARED FOR VERY STRONG AND ERRATIC CROSS WINDS TODAY. THESE STRONG WINDS WILL ALSO AFFECT THE TRAVEL WEST TOWARDS WALTMAN AND HILAND ON HIGHWAY 20 26. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ005-018-172100- /O.CON.KRIW.HW.W.0035.000000T0000Z-121217T2100Z/ SOUTHWEST BIG HORN BASIN-LANDER FOOTHILLS- INCLUDING THE CITIES OF...THERMOPOLIS...LANDER 1039 AM MST MON DEC 17 2012 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 PM MST THIS AFTERNOON... A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 PM MST THIS AFTERNOON. * SUMMARY AND TIMING...THE POTENTIAL FOR HIGH WINDS STILL EXIST ACROSS THE AREA THROUGH 2 PM THIS AFTERNOON. VERY STRONG WINDS ARE OCCURRING IN THE FOOTHILLS AND MAY COME DOWN INTO THE LOWER ELEVATIONS AT ANYTIME THROUGH EARLY THIS AFTERNOON. BE ALERT FOR SUDDEN INCREASES IN WIND SPEEDS THROUGH 2 PM THIS AFTERNOON. * WIND...SOUTHWEST 30 TO 40 MPH WITH GUSTS AROUND 60 MPH ARE POSSIBLE AT ANYTIME THROUGH 2 PM THIS AFTERNOON. * IMPACTS...STRONG CROSS WINDS WILL MAKE TRAVEL HAZARDOUS IN LIGHT WEIGHT AND HIGH PROFILE VEHICLES. OTHER OUTDOOR ACTIVITIES MAY BECOME DIFFICULT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ SKRBAC
829 WWUS75 KRIW 172042 NPWRIW URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 142 PM MST MON DEC 17 2012 ...VERY STRONG WINDS EXPECTED ACROSS PORTIONS OF CENTRAL WYOMING THROUGH THIS EVENING... .HIGH WINDS ARE LIKELY BETWEEN JEFFREY CITY AND CASPER THROUGH THIS EVENING. WINDS IN NATRONA COUNTY WILL PEAK THIS AFTERNOON AHEAD OF A STRONG COLD FRONT. HIGH WINDS ARE ALSO LIKELY ACROSS THE LANDER FOOTHILLS AND HOT SPRINGS COUNTY THROUGH EARLY THIS AFTERNOON. WYZ005-018-172145- /O.EXP.KRIW.HW.W.0035.000000T0000Z-121217T2100Z/ SOUTHWEST BIG HORN BASIN-LANDER FOOTHILLS- INCLUDING THE CITIES OF...THERMOPOLIS...LANDER 142 PM MST MON DEC 17 2012 ...HIGH WIND WARNING WILL EXPIRE AT 2 PM MST THIS AFTERNOON... THE HIGH WIND WARNING WILL EXPIRE AT 2 PM MST THIS AFTERNOON. THE THREAT OF HIGH WINDS HAVE DIMINISHED ACROSS THE AREA. THEREFORE...THE HIGH WIND WARNING FOR THE WILL EXPIRE ON TIME AT 2 PM. HOWEVER...STRONG WEST WINDS ARE STILL EXPECTED AT TIMES THIS AFTERNOON AND EVENING. WEST WINDS WILL LIKELY BLOW 25 TO 35 MPH WITH GUSTS TO 45 OR 50 MPH AT TIMES INTO THE EVENING HOURS AS A COLD FRONT MOVES ACROSS THE AREA. $$ WYZ019-180300- /O.CON.KRIW.HW.W.0035.000000T0000Z-121218T0300Z/ GREEN MOUNTAINS AND RATTLESNAKE RANGE- INCLUDING THE CITY OF...JEFFREY CITY 142 PM MST MON DEC 17 2012 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS EVENING... A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS EVENING. * SUMMARY AND TIMING...A RAPIDLY INCREASING SURFACE PRESSURE GRADIENT WILL COMBINE WITH VERY STRONG MOUNTAIN TOP FLOW TO PRODUCE HIGH WINDS ACROSS THE AREA THROUGH EARLY THIS EVENING. * WIND...SOUTHWEST 30 TO 40 MPH WITH GUSTS AROUND 60 MPH. THE STRONGEST WINDS WILL OCCUR DURING THE DAY TODAY. EVEN STRONGER GUSTS AROUND 70 MPH WILL OCCUR IN THE MOUNTAINS AND SOUTHWEST FAVORED AREAS AROUND MUDDY GAP AND FALES ROCK. * IMPACTS...TRAVELERS HEADING OVER BEAVER RIM OR TRAVELING BETWEEN SWEETWATER STATION AND MUDDY GAP SHOULD BE PREPARED FOR VERY STRONG AND ERRATIC WIND GUSTS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ020-180300- /O.CON.KRIW.HW.W.0035.000000T0000Z-121218T0300Z/ NATRONA COUNTY LOWER ELEVATIONS- INCLUDING THE CITY OF...CASPER 142 PM MST MON DEC 17 2012 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS EVENING... A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS EVENING. * SUMMARY AND TIMING...VERY STRONG WINDS WILL DEVELOP TODAY AS AN INCREASING SURFACE PRESSURE GRADIENT COMBINES WITH VERY STRONG MOUNTAIN TOP WINDS. THE STRONGEST WINDS WILL BE THIS AFTERNOON. * WIND...SOUTHWEST 30 TO 40 MPH WITH GUSTS TO 60 MPH. * IMPACTS...TRAVELERS HEADING NORTH ON INTERSTATE 25 BETWEEN CASPER AND MIDWEST SHOULD BE PREPARED FOR VERY STRONG AND ERRATIC CROSS WINDS TODAY. THESE STRONG WINDS WILL ALSO AFFECT THE TRAVEL WEST TOWARDS WALTMAN AND HILAND ON HIGHWAY 20 26. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$
351 WWUS75 KRIW 180201 NPWRIW URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 701 PM MST MON DEC 17 2012 ...HIGH WIND WARNING CANCELLED... .FAVORABLE WINDS IN THE LOWER ATMOSPHERE AND A DECREASING PRESSURE GRADIENT HAVE BROUGHT AN END TO THE STRONG WIND IN CENTRAL WYOMING. THEREFORE...THE HIGH WIND WARNING HAS BEEN CANCELLED. WYZ019-020-180315- /O.CAN.KRIW.HW.W.0035.000000T0000Z-121218T0300Z/ GREEN MOUNTAINS AND RATTLESNAKE RANGE- NATRONA COUNTY LOWER ELEVATIONS- INCLUDING THE CITIES OF...JEFFREY CITY...CASPER 701 PM MST MON DEC 17 2012 ...HIGH WIND WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS CANCELLED THE HIGH WIND WARNING. SOUTHWEST WIND OF 15 TO 30 MPH WILL BE COMMON OVERNIGHT...BUT THE THREAT OF STRONG WIND HAS ENDED. A PEAK WIND SPEED OF 59 MPH WAS RECORDED AT THE CASPER-NATRONA COUNTY INTERNATIONAL AIRPORT AT 1239 PM MONDAY. OTHER PEAK WINDS RANGED FROM 58 MPH ON BEAVER RIM IN FREMONT COUNTY TO SPEEDS AROUND 70 MPH IN REMOTE LOCATIONS IN THE GREEN MOUNTAINS AND RATTLESNAKE HILLS. $$ CNJ
What forecasters said that day
The local office's own words before this high wind 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 high wind warning went out at Dec 16, 2:24 PM MST, 7 minutes earlier.
Area forecast discussion, Dec 16, 2:24 PM MST, 7 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE RIVERTON WY 224 PM MST SUN DEC 16 2012 .SHORT TERM...TONIGHT THROUGH WEDNESDAY ROUND ONE OF OUR MAJOR WINTER STORM HAS ALREADY BROUGHT SOME SIGNIFICANT SNOW TO THE TETONS AND STAR VALLEY WITH UP TO 9 INCHES IN THE TETONS AND 3 TO 6 INCHES IN THE NORTH END OF THE STAR VALLEY. A BRIEF RESPITE IS IN STORE FOR A FEW HOURS...AT LEAST IN TERMS OF HEAVIER SNOW...BUT SNOW WILL INCREASE TOWARDS 06Z AGAIN AS STRONG WARM ADVECTION MOVES QUICKLY INTO THE FAR WEST AND THEN SHIFTS EAST. THE WARM ADVECTION WILL DOMINATE INTO PART OF MONDAY MORNING BEFORE THE TROUGH AND 160KT JET APPROACHES PROVIDING STRONG TROUGH AND JET STREAK DYNAMICS THE REMAINDER OF MONDAY AND INTO MONDAY EVENING ALONG WITH RAPIDLY INCREASING WINDS. CONSIDERABLE BLOWING AND DRIFTING SNOW WILL BECOME A FACTOR ON MONDAY AND CONTINUE INTO MONDAY EVENING BEFORE DECREASING. THE SNOW LOOKS TO LINGER THE LONGEST IN THE SOUTHWEST FROM THE SOUTH HALF OF THE SALT WYOMING RANGE OVER TO SOUTH PASS AND POINTS SOUTH. WINTER WEATHER ADVISORIES FOR SNOW AND WIND WILL LIKELY BE NEEDED FOR SWEETWATER COUNTY ON MONDAY AND PROBABLY THE UPPER GREEN. SNOW WILL DECREASE IN THE WEST LATER MONDAY NIGHT INTO EARLY TUESDAY BUT THEN THE NEXT TROUGH QUICKLY DIGS INTO THE GREAT BASIN RESULTING IN THE POTENTIAL FOR SOME LIGHT SNOW TO CONTINUE IN AT LEAST THE WESTERN MOUNTAINS TUESDAY INTO TUESDAY NIGHT BY WEDNESDAY...A SHORTWAVE RIDGE MOVES IN RESULTING IN THE POTENTIAL FOR SOME LIGHT ISENTROPIC LIFT SNOWFALL IN THE FAR WEST. NOTHING SIGNIFICANT BUT STILL THERE. EAST OF THE DIVIDE...WIND WILL BE THE MAIN WEATHER WORD EXCEPT FOR THE SOUTH IN THE SOUTH MONDAY AND POSSIBLY THE FAR SOUTH ON TUESDAY WITH THE NEXT TROUGH. ALTHOUGH ENOUGH INSTABILITY RESULTS ON MONDAY WITH STRONG COLD ADVECTION AND THE FRONTAL FORCING TO HAVE TO WATCH FOR SNOW SHOWERS IN CENTRAL WYOMING. OTHERWISE...PLENTY OF WIND IN ALMOST ALL AREAS MONDAY INTO MONDAY NIGHT WITH FROPA AND IMPRESSIVE JET MOVING EAST RIGHT ACROSS THE SOUTH HALF. HAVE UPGRADED HIGH WIND WATCHES TO WARNINGS FROM JEFFREY CITY TO CASPER LATER TONIGHT INTO MONDAY MORNING WITH BACKING AND INCREASING MID LEVEL FLOW OF 50-60KTS AND RAPIDLY INCREASING SURFACE PRESSURE GRADIENT AHEAD OF THE FRONT. POTENTIAL FOR HIGH WINDS STILL EXIST FOR LANDER AND THERMOPOLIS LATER TONIGHT AND MONDAY BUT SIGNATURE IS NOT STRONG TO UPGRADE YET. THE EVENING CREW HAVE TO CONTINUE TO WATCH THIS. VERY STRONG WINDS MAKE IT INTO THE FOOTHILLS IT'S JUST A MATTER OF WHETHER A DOWNSLOPE WIND EVENT WILL HAPPEN WITH THE JET PASSING CLOSE BY OR IF A BRIEF MOUNTAIN WAVE WILL DEVELOP AND CAUSE A PERIOD HIGH WINDS. TOUGH CALL RIGHT NOW. WE ALSO CANCELLED THE HIGH WIND WATCH FOR THE CODY FOOTHILLS AND REPLACED IT WITH A SPS FOR MORE LOCALIZED 50 TO 60 MPH WINDS AROUND CLARK AND POINTS SOUTH ABOUT 10 MILES WITH 40 TO 50 MPH ON THE WEST SIDE OF CODY. THE CLARK'S FORK GAP WILL DEFINITELY BE HIGH WIND TONIGHT WITH 14C THERMAL GRADIENT AND STRONG MOUNTAIN TOP FLOW BUT MOUNTAIN WAVE SIGNATURE AND STABLE LAYER IS LACKING. STRONG WINDS WILL ALSO PROBABLY DEVELOP AWAY FROM THE FOOTHILLS WITH FROPA LATER MONDAY INTO MONDAY EVENING INCLUDING PLACES LIKE DUBOIS AND RIVERTON. AFTER THIS...IT WILL BE SHARPLY COLDER TO END THE PERIOD WITH H7 TEMPERATURES DROPPING INTO THE -18C RANGE TUESDAY NIGHT AND WEDNESDAY WITH LESS WIND. LOWS WILL BE TRICKY WITH CLOUDS AND POTENTIAL FOR LIGHT SNOW IN THE FAR WEST AND STILL SOME BREEZES IN SPOTS EAST OF THE DIVIDE. .LONG TERM...WEDNESDAY NIGHT THROUGH SUNDAY THE ECMWF AND THE GFS ADVERTISE A RIDGE AXIS OVER THE ROCKIES THURSDAY WITH THE ECMWF THE MORE AMPLIFIED MODEL. THE OVERALL TREND HAS BEEN FOR THE RIDGE TO BE LESS BROD AND PROMINENT. BECAUSE THE PREVIOUS TROUGH WILL TAKE A MORE SOUTHERLY TRACK RESULTING IN LESS SNOW COVER AND BECAUSE OF AN ANTICIPATED FLATTER RIDGE...THE TEMPERATURE INVERSIONS WILL BE RELATIVELY WEAK WITH THIS RIDGE. TEMPERATURES WILL BE WARMEST ON FRIDAY WHERE HIGHS IN THE LOW 40S EAST OF THE DIVIDE WILL OCCUR IN AREAS THAT MIX WELL IN THE SOUTH AND EAST...CPR...BYG AND COD. A WEAK VORT LOBE WILL RIDE UP THE WEST SIDE OF THE RIDGE PROVIDING THE FAR WEST WITH ISOLD POPS FOR SNOW IN THE MTNS FRI. THEN ON SUNDAY A MORE PROMINENT SHORTWAVE WILL APPROACH THE AREA WITH A BETTER CHANCE OF SNOW IN THE FAR WEST. .AVIATION.../00Z ISSUANCE/ WEST OF THE DIVIDE... CONVECTIVE SNOW SHOWERS WILL CAUSE LOCAL AREAS OF IFR CONDITIONS ACROSS THE FAR WEST INCLUDING KJAC...KPNA AND KBPI AS WELL AS MTN OBSCURATIONS FOR THE REST OF THE AFTERNOON. OTHERWISE LIGHT SNOW IN FAR WESTERN WYOMING WILL RESULT IN MVFR CONDITIONS AND MOUNTAIN OBSCURATIONS THROUGH 06Z MONDAY. THEN AS A MORE VIGOROUS PACIFIC STORM SYSTEM REACHES WESTERN WYOMING...WEATHER CONDITIONS WILL DETERIORATE TO IFR/LIFT CONDITIONS ALONG WITH MTN OBSCURATIONS ALL THROUGH MONDAY DUE TO LOW CIGS/MODERATE TO HEAVY SNOWFALL AND BLOWING SNOW. KJAC WILL BE MOST IMPACTED BY THIS WEATHER SYSTEM AND TO A LESSER EXTEND KPNA. KBPI AND KRKS SHOULD EXPERIENCE PERIODS OF MVFR CONDITIONS AS WELL. EXPECT TURBULENCE AND LIGHT ICING THROUGH THE MOUNTAIN PASSES. .EAST OF THE DIVIDE... MAINLY VFR CONDITIONS CANE BE EXPECTED THROUGH 18Z MONDAY. SOME PRECIPITATION WILL SPILL OVER THE DIVIDE AFTER 18Z MONDAY RESULTING IN MVFR CONDITIONS IN THE BIG HORN BASIN INCLUDING THE VCNTY OF KCOD. HIGH WINDS ARE POSSIBLE BEGINNING IN THE CODY FOOTHILLS TO THE LEE OF THE ABSAROKA MOUNTAINS AFTER 06Z MONDAY...WORKING THEIR WAY SOUTH AND EAST ALONG THE LEE OF THE WIND RIVER MOUNTAINS AND FINALLY ALONG THE SOUTHERN WIND CORRIDOR FROM THE RED DESERT TO KCPR. EXPECT STRONG WIND SHEER TO THE LEE OF THE ABSAROKA AND EAST SLOPE OF THE WIND RIVER MTNS LATE TONIGHT AND MONDAY. FIRE WEATHER... A MAJOR WINTER STORM WILL IMPACT THE WEST THROUGH MONDAY NIGHT WITH SNOW AND INCREASING WIND. THE EAST WILL SEE STRONG TO HIGH WINDS MONDAY INTO MONDAY NIGHT AS A STRONG COLD FRONT PUSHES EAST ACROSS THE AREA. SNOW WILL FALL ACROSS THE INTERSTATE 80 CORRIDOR ALONG WITH STRONG WEST WINDS. SHARPLY COLDER AIR WILL BE USHERED IN BEHIND THIS SYSTEM MONDAY NIGHT INTO WEDNESDAY. && .RIW WATCHES/WARNINGS/ADVISORIES... HIGH WIND WARNING FROM 2 AM TO 8 PM MST MONDAY WYZ019. HIGH WIND WATCH FROM LATE TONIGHT THROUGH MONDAY AFTERNOON WYZ005-018. WINTER STORM WARNING FROM 11 PM THIS EVENING TO 11 PM MST MONDAY WYZ001-013-025. WINTER STORM WARNING UNTIL 11 PM MST MONDAY WYZ012-023. WINTER STORM WARNING FROM 11 PM THIS EVENING TO 5 AM MST TUESDAY WYZ014-027. WINTER WEATHER ADVISORY FROM 11 PM THIS EVENING TO 11 PM MST MONDAY WYZ002. WINTER STORM WARNING UNTIL 5 AM MST TUESDAY WYZ024. HIGH WIND WARNING FROM 5 AM TO 8 PM MST MONDAY WYZ020. && SHORT TERM...SKRBAC LONG TERM...LIPSON AVIATION...LIPSON FIRE WEATHER...SKRBAC
Hazardous weather outlook, Dec 16, 2:01 PM MST, 30 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE RIVERTON WY 201 PM MST SUN DEC 16 2012 WYZ001>020-022>030-171200- 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- 201 PM MST SUN DEC 16 2012 ...WINTER STORM WARNINGS IN EFFECT FOR WESTERN WYOMING FOR TONIGHT ...MONDAY AND INTO MONDAY NIGHT... ...WINTER WEATHER ADVISORY FOR THE ABSAROKA MOUNTAINS FOR LATE TONIGHT...MONDAY AND MONDAY EVENING... ...HIGH WIND WATCHES AND WARNINGS ARE IN EFFECT FOR PORTIONS OF WESTERN AND CENTRAL WYOMING LATE TONIGHT THROUGH MONDAY AND INTO MONDAY EVENING... THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN AND CENTRAL WYOMING. .DAY ONE...TODAY AND TONIGHT TODAY AND TONIGHT...SNOW...AREAS OF BLOWING SNOW...SLICK ROADS AND LIMITED VISIBILITY WILL BE LIKELY IN THE WESTERN MOUNTAINS AND FAR WEST VALLEYS. THE COMBINATION OF WIND AND SNOW COULD CAUSE PERIODS OF DIFFICULT TRAVEL...ESPECIALLY ALONG INTERSTATE 80 AS WELL AS HIGHWAY 28 OVER SOUTH PASS. PLEASE SEE WINTER WEATHER PRODUCTS FOR DETAILS. STRONG WINDS ARE EXPECTED ALONG THE FOOTHILLS ADJACENT TO THE EAST SLOPES OF THE WIND RIVER AND ABSAROKA RANGES AS WELL AS FROM THE RED DESERT TO JEFFEREY CITY. PLEASE SEE HIGH WIND PRODUCTS FOR DETAILS. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY MONDAY AND MONDAY NIGHT...STRONG WINDS ARE EXPECTED ALONG THE EAST SLOPES OF THE WIND RIVER AND ABSAROKA RANGES AND ADJACENT FOOTHILLS AS WELL AS FROM THE RED DESERT TO CASPER. SNOW AND AREAS OF BLOWING AND DRIFTING SNOW ARE POSSIBLE IN THE WESTERN MOUNTAINS AND VALLEYS. THE SNOW WILL DECREASE FROM NORTH TO SOUTH IN WESTERN WYOMING FROM NORTH TO SOUTH. PLEASE SEE WINTER WEATHER AND HIGH WIND PRODUCTS FOR DETAILS. TUESDAY AND WEDNESDAY...SNOW MAY INCREASE ACROSS SOUTHERN WYOMING ON TUESDAY WITH THE HEAVIEST SNOW ALONG AND SOUTH OF INTERSTATE 80. EXPECT COLD MORNING LOW TEMPERATURES IN THE WAKE OF THIS WEATHER SYSTEM. .SPOTTER INFORMATION STATEMENT... SPOTTERS ARE ENCOURAGED TO REPORT ANY NEW SNOW ACCUMULATION AS WELL AS ANY WIND SPEEDS GREATER THAN 50 MPH. THANK YOU. TEAM RIVERTON
In the hours before
Special weather statement, Dec 16, 2:14 PM MST, 17 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE RIVERTON WY 214 PM MST SUN DEC 16 2012 WYZ003-171000- CODY FOOTHILLS- 214 PM MST SUN DEC 16 2012 ...STRONG WINDS EXPECTED IN THE CODY FOOTHILLS LATE TONIGHT THROUGH MONDAY MORNING... WEST WINDS WILL INCREASE ACROSS THE CODY FOOTHILLS THIS EVENING. BY 11 PM WIND SPEEDS SHOULD REACH 30 TO 40 MPH WITH GUSTS TO 50 MPH AND WILL PERSIST THROUGH 8 AM MONDAY MORNING. THERE WILL BE SOME GUSTS OF 60 MPH CLOSER TO THE HIGHER FOOTHILLS AS WELL AS IN THE VICINITY OF CLARK. THE PORTION OF HIGHWAY 120 NORTH OF CODY IN THE VICINITY OF CLARK NEAR MILE MARKER 121 WILL BE AMONG ONE OF THE WINDIER LOCATIONS. ANTICIPATE STRONG CROSS WINDS DURING THIS WIND EVENT IF DRIVING IN THIS AREA DURING THIS TIME FRAME. BRING INDOORS ANY LOOSE ITEMS. LIPSON LIPSON
The office that day
Everything else NWS Riverton, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 16, 11:25 AM MST | Winter Storm Warning | RIW | Fremont, Lincoln, Park, Sublette, Teton | 39 hr |
| Dec 16, 3:16 PM MST | Winter Weather Advisory | RIW | Fremont, Hot Springs, Lincoln, Park, Sublette, Sweetwater | 35 hr |
Nearby
High Wind Warnings in Wyoming, 2012Every high wind 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.