Alert archive / Wyoming / Winter Storm Warnings in 2005
Winter Storm Warning 2, NWS Riverton, WY
NWS Riverton, WY issued this winter storm warning at Nov 26, 2005, 10:58 AM MST for 5 counties in Wyoming. It took effect at Nov 26, 2005, 12:00 PM MST. It was in force for 22 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
- Nov 26, 2005, 10:58 AM MST (17:58 UTC)
- In effect from
- Nov 26, 2005, 12:00 PM MST
- Expired
- Nov 27, 2005, 9:57 AM MST
- In force
- 22 hr
- Issued by
- NWS Riverton, WY
Counties Big Horn County, WY, Fremont County, WY, Johnson County, WY, Natrona County, WY, Washakie County, WY
The radar
The Riverton/Lander radar (KRIW), 103 km from the middle of the area, began a volume at 17:59 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, 6.0 hours before the alert went out and 98 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
- 1679 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 2 m²/s²
- 0-3 km storm-relative helicity
- 26 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WWUS45 KRIW 261758 WSWRIW URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 1058 AM MST SAT NOV 26 2005 ...WINTER WEATHER CONDITIONS PERSIST ACROSS MUCH OF WESTERN AND CENTRAL WYOMING THIS HOLIDAY WEEKEND... .A WINTER STORM WILL CONTINUE TO MOVE EAST ACROSS WYOMING THROUGH SUNDAY. AS A RESULT...SNOWFALL ACROSS WESTERN WYOMING WILL TAPER OFF BY THIS EVENING. AT THE SAME TIME...SNOW AND WIND WILL BE ON THE INCREASE ACROSS PORTIONS OF NORTHEAST AND CENTRAL WYOMING. WYZ010-011-270200- /O.UPG.KRIW.WS.A.0002.051126T1900Z-051128T0100Z/ /O.NEW.KRIW.WS.W.0002.051126T1900Z-051128T0600Z/ NORTHEAST JOHNSON COUNTY-SOUTHEAST JOHNSON COUNTY- INCLUDING THE CITIES OF...BUFFALO...KAYCEE 1058 AM MST SAT NOV 26 2005 ...WINTER STORM WARNING IN EFFECT UNTIL 11 PM MST SUNDAY... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER STORM WARNING...WHICH IS IN EFFECT UNTIL 11 PM MST SUNDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. SNOWFALL WILL DEVELOP ACROSS THE REGION THIS AFTERNOON. THE SNOW COULD START OUT AS A MIXTURE OF RAIN AND SNOW. A PERIOD OF HEAVY SNOWFALL IS ANTICIPATED LATE THIS AFTERNOON INTO THIS EVENING. 4 TO 6 INCHES OF SNOW IS EXPECTED TO QUICKLY ACCUMULATE. A LIGHTER SNOWFALL WILL CONTINUE LATE TONIGHT THROUGH SUNDAY EVENING FOR SOME ADDITIONAL LIGHT ACCUMULATIONS. BY LATE TONIGHT...A NORTHWEST WIND OF 25 TO 35 MPH WITH GUSTS OF 40 TO 50 MPH WILL DEVELOP...WHICH WILL PRODUCE CONSIDERABLE BLOWING AND DRIFTING SNOW. THE WORST OF THESE CONDITIONS WILL BE ACROSS THE NORTHEAST HALF OF JOHNSON COUNTY...ESPECIALLY FROM BUFFALO EAST ALONG INTERSTATE 90. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ WYZ008-009-270200- /O.UPG.KRIW.WS.A.0002.051126T1900Z-051128T0100Z/ /O.NEW.KRIW.WS.W.0002.051126T1900Z-051128T0600Z/ BIGHORN MOUNTAINS WEST-BIGHORN MOUNTAINS SOUTHEAST- 1058 AM MST SAT NOV 26 2005 ...WINTER STORM WARNING IN EFFECT UNTIL 11 PM MST SUNDAY... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER STORM WARNING...WHICH IS IN EFFECT UNTIL 11 PM MST SUNDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. SNOWFALL WILL INCREASE ACROSS THE REGION THIS AFTERNOON. PERIODS OF HEAVY SNOWFALL ARE ANTICIPATED. TOTAL SNOWFALL BY LATE SUNDAY WILL RANGE FROM 8 TO 14 INCHES. IN ADDITION...A NORTHWEST WIND OF 25 TO 35 MPH WITH GUSTS OF 40 TO 50 MPH WILL DEVELOP...WHICH WILL PRODUCE CONSIDERABLE BLOWING AND DRIFTING SNOW IN OPEN AREAS. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ WYZ020-022-270200- /O.EXB.KRIW.SN.Y.0007.051127T0100Z-051127T1300Z/ NATRONA COUNTY LOWER ELEVATIONS-CASPER MOUNTAIN- INCLUDING THE CITY OF...CASPER 1058 AM MST SAT NOV 26 2005 ...SNOW ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO 6 AM MST SUNDAY... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A SNOW ADVISORY...WHICH IS IN EFFECT FROM 6 PM THIS EVENING TO 6 AM MST SUNDAY. SNOW WILL DEVELOP ACROSS THE AREA EARLY THIS EVENING. THE SNOW IS EXPECTED TO BE HEAVY AT TIMES. A QUICK 3 TO 5 INCHES OF SNOW IS EXPECTED BY SUNRISE SUNDAY. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES. USE CAUTION WHILE DRIVING DURING THIS HOLIDAY WEEKEND. $$ WYZ001-270100- /O.CON.KRIW.SN.Y.0007.000000T0000Z-051127T0100Z/ YELLOWSTONE NATIONAL PARK- INCLUDING THE CITIES OF...LAKE...MAMMOTH...OLD FAITHFUL 1058 AM MST SAT NOV 26 2005 ...SNOW ADVISORY REMAINS IN EFFECT UNTIL 6 PM MST THIS AFTERNOON... A SNOW ADVISORY REMAINS IN EFFECT UNTIL 6 PM MST THIS AFTERNOON. PERIODS OF SNOW WILL CONTINUE TO FALL THROUGH THIS AFTERNOON. AN ADDITIONAL 2 TO 3 INCHES WILL BE POSSIBLE BEFORE THE SNOW CHANCES DECREASE BY EVENING. THROUGH EARLY THIS MORNING...SNOWFALL TOTALS HAVE RANGED FROM 3 INCHES IN NORTHEAST SECTIONS OF THE PARK TO AS MUCH AS 7 INCHES TOWARD THE SOUTH ENTRANCE. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING DURING THIS HOLIDAY WEEKEND. $$ WYZ015-270100- /O.CON.KRIW.SN.Y.0007.000000T0000Z-051127T0100Z/ WIND RIVER MOUNTAINS EAST- 1058 AM MST SAT NOV 26 2005 ...SNOW ADVISORY REMAINS IN EFFECT UNTIL 6 PM MST THIS AFTERNOON... A SNOW ADVISORY REMAINS IN EFFECT UNTIL 6 PM MST THIS AFTERNOON. PERIODS OF SNOW WILL CONTINUE TO FALL THROUGH THIS AFTERNOON. AN ADDITIONAL 1 TO 2 INCHES WILL BE POSSIBLE THROUGH THIS AFTERNOON ALONG THE HIGHER PEAKS. SNOWFALL WILL ACTUALLY INCREASE THIS EVENING ALONG THE NORTHEAST FACING FOOTHILLS WITH 2 TO 3 INCHES OF SNOW POSSIBLE. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING OVER SOUTH PASS AND TOGWOTEE PASS DURING THIS HOLIDAY WEEKEND. $$ WYZ014-024-270100- /O.CON.KRIW.SN.Y.0007.000000T0000Z-051127T0100Z/ WIND RIVER MOUNTAINS WEST-SALT RIVER AND WYOMING RANGES- 1058 AM MST SAT NOV 26 2005 ...SNOW ADVISORY REMAINS IN EFFECT UNTIL 6 PM MST THIS AFTERNOON... A SNOW ADVISORY REMAINS IN EFFECT UNTIL 6 PM MST THIS AFTERNOON. PERIODS OF SNOW WILL CONTINUE TO FALL THROUGH THIS AFTERNOON. AN ADDITIONAL 2 TO 3 INCHES WILL BE POSSIBLE BEFORE THE SNOW CHANCES DECREASE BY EVENING. THROUGH EARLY THIS MORNING...SNOWFALL TOTALS AVERAGED AROUND 5 INCHES IN THE WIND RIVER MOUNTAINS AND AROUND 7 INCHES IN THE SALT AND WYOMING RANGES. AREAS OF WEST WIND AT 25 TO 35 MPH WILL CAUSE BLOWING AND DRIFTING SNOW. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES INCLUDING TRAVEL OVER SALT RIVER PASS. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING DURING THIS HOLIDAY WEEKEND. $$ WYZ012-270100- /O.CON.KRIW.SN.Y.0007.000000T0000Z-051127T0100Z/ TETON AND GROS VENTRE MOUNTAINS- 1058 AM MST SAT NOV 26 2005 ...SNOW ADVISORY REMAINS IN EFFECT UNTIL 6 PM MST THIS AFTERNOON... A SNOW ADVISORY REMAINS IN EFFECT UNTIL 6 PM MST THIS AFTERNOON. PERIODS OF SNOW WILL CONTINUE TO FALL THROUGH THIS AFTERNOON. AN ADDITIONAL 2 TO 3 INCHES WILL BE POSSIBLE BEFORE THE SNOW CHANCES DECREASE BY EVENING. THROUGH EARLY THIS MORNING...SNOWFALL TOTALS HAVE AVERAGED AROUND 5 INCHES. AREAS OF WEST WIND OF 25 TO 35 MPH WILL CAUSE BLOWING AND DRIFTING SNOW. TRAVEL OVER TETON PASS WILL BE HAZARDOUS AT TIMES. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING...ESPECIALLY OVER TETON PASS...DURING THIS HOLIDAY WEEKEND. $$ WYZ013-023-025-027-270100- /O.CON.KRIW.SN.Y.0007.000000T0000Z-051127T0100Z/ JACKSON HOLE-STAR VALLEY-UPPER GREEN RIVER BASIN FOOTHILLS- SOUTH LINCOLN COUNTY- INCLUDING THE CITIES OF...JACKSON...AFTON...ALPINE...THAYNE... PINEDALE...KEMMERER...COKEVILLE 1058 AM MST SAT NOV 26 2005 ...SNOW ADVISORY REMAINS IN EFFECT UNTIL 6 PM MST THIS AFTERNOON... A SNOW ADVISORY REMAINS IN EFFECT UNTIL 6 PM MST THIS AFTERNOON. PERIODS OF SNOW WILL CONTINUE TO FALL THROUGH THIS AFTERNOON. AN ADDITIONAL 1 TO 2 INCHES WILL BE POSSIBLE BEFORE THE SNOW CHANCES DECREASE BY EVENING. THROUGH EARLY THIS MORNING...SNOWFALL TOTALS HAVE RANGED FROM 3 TO 5 INCHES IN THE VALLEYS. ROADS WILL BE SLICK TO SNOW PACKED. AREAS OF DRIFTING SNOW WILL OCCUR IN OPEN AREAS WITH WIND SPEEDS OF 15 TO 20 MPH. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES IN THE STAR AND JACKSON VALLEYS AND ESPECIALLY OVER THE RIM BETWEEN DANIEL AND BONDURANT. USE CAUTION WHILE DRIVING DURING THIS HOLIDAY WEEKEND. $$ FRIEDERS
5 follow-up statements
000 WWUS45 KRIW 262216 WSWRIW URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 316 PM MST SAT NOV 26 2005 ...WINTER WEATHER CONDITIONS PERSIST ACROSS MUCH OF WESTERN AND CENTRAL WYOMING THIS HOLIDAY WEEKEND... .A WINTER STORM WILL CONTINUE TO MOVE EAST ACROSS WYOMING THROUGH SUNDAY. AS A RESULT...SNOWFALL ACROSS WESTERN WYOMING WILL TAPER OFF EARLY THIS EVENING. AT THE SAME TIME...SNOW AND WIND WILL BE ON THE INCREASE ACROSS PORTIONS OF NORTHEAST AND CENTRAL WYOMING. WYZ010-011-270630- /O.CON.KRIW.WS.W.0002.000000T0000Z-051128T0600Z/ NORTHEAST JOHNSON COUNTY-SOUTHEAST JOHNSON COUNTY- INCLUDING THE CITIES OF...BUFFALO...KAYCEE 316 PM MST SAT NOV 26 2005 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM MST SUNDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM MST SUNDAY. SNOWFALL WILL DEVELOP ACROSS THE REGION BY EARLY EVENING. A PERIOD OF HEAVY SNOWFALL IS ANTICIPATED THIS EVENING WITH 4 TO 6 INCHES OF SNOW IS EXPECTED TO QUICKLY ACCUMULATE. A LIGHTER SNOWFALL WILL CONTINUE LATE TONIGHT THROUGH SUNDAY EVENING FOR SOME ADDITIONAL LIGHTER ACCUMULATIONS. BY LATE TONIGHT...A NORTHWEST WIND OF 25 TO 35 MPH WITH GUSTS OF 40 TO 50 MPH WILL DEVELOP...WHICH WILL PRODUCE CONSIDERABLE BLOWING AND DRIFTING SNOW. THE WORST OF THESE CONDITIONS WILL BE ACROSS THE NORTHEAST HALF OF JOHNSON COUNTY...ESPECIALLY FROM BUFFALO EAST ALONG INTERSTATE 90. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ WYZ008-009-270630- /O.CON.KRIW.WS.W.0002.000000T0000Z-051128T0600Z/ BIGHORN MOUNTAINS WEST-BIGHORN MOUNTAINS SOUTHEAST- 316 PM MST SAT NOV 26 2005 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM MST SUNDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM MST SUNDAY. SNOWFALL WILL CONTINUE TO INCREASE ACROSS THE REGION EARLY THIS EVENING. PERIODS OF HEAVY SNOWFALL ARE ANTICIPATED. TOTAL SNOWFALL BY LATE SUNDAY WILL RANGE FROM 8 TO 14 INCHES. IN ADDITION...A NORTHWEST WIND OF 25 TO 35 MPH WITH GUSTS OF 40 TO 50 MPH WILL DEVELOP...WHICH WILL PRODUCE CONSIDERABLE BLOWING AND DRIFTING SNOW IN OPEN AREAS. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ WYZ001-270100- /O.CON.KRIW.SN.Y.0007.000000T0000Z-051127T0100Z/ YELLOWSTONE NATIONAL PARK- INCLUDING THE CITIES OF...LAKE...MAMMOTH...OLD FAITHFUL 316 PM MST SAT NOV 26 2005 ...SNOW ADVISORY REMAINS IN EFFECT UNTIL 6 PM MST THIS AFTERNOON... A SNOW ADVISORY REMAINS IN EFFECT UNTIL 6 PM MST THIS AFTERNOON. PERIODS OF SNOW WILL CONTINUE THE REST OF THIS AFTERNOON. AN ADDITIONAL 1 TO 2 INCHES WILL BE POSSIBLE BEFORE THE SNOW CHANCES DECREASE BY EVENING. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING DURING THIS HOLIDAY WEEKEND. $$ WYZ015-270100- /O.CON.KRIW.SN.Y.0007.000000T0000Z-051127T0100Z/ WIND RIVER MOUNTAINS EAST- 316 PM MST SAT NOV 26 2005 ...SNOW ADVISORY REMAINS IN EFFECT UNTIL 6 PM MST THIS AFTERNOON... A SNOW ADVISORY REMAINS IN EFFECT UNTIL 6 PM MST THIS AFTERNOON. PERIODS OF SNOW WILL CONTINUE TO FALL THE REST OF THIS AFTERNOON. AN ADDITIONAL 1 INCH OF SNOW WILL BE POSSIBLE THE REST OF THIS AFTERNOON ALONG THE HIGHER PEAKS. SNOWFALL WILL ACTUALLY INCREASE THIS EVENING ALONG THE NORTHEAST FACING FOOTHILLS WITH 2 TO 3 INCHES OF SNOW POSSIBLE OVERNIGHT. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING OVER SOUTH PASS AND TOGWOTEE PASS DURING THIS HOLIDAY WEEKEND. $$ WYZ014-024-270100- /O.CON.KRIW.SN.Y.0007.000000T0000Z-051127T0100Z/ WIND RIVER MOUNTAINS WEST-SALT RIVER AND WYOMING RANGES- 316 PM MST SAT NOV 26 2005 ...SNOW ADVISORY REMAINS IN EFFECT UNTIL 6 PM MST THIS AFTERNOON... A SNOW ADVISORY REMAINS IN EFFECT UNTIL 6 PM MST THIS AFTERNOON. PERIODS OF SNOW WILL CONTINUE TO FALL THE REST OF THIS AFTERNOON. AN ADDITIONAL 1 TO 2 INCHES WILL BE POSSIBLE BEFORE THE SNOW CHANCES DECREASE BY EVENING. AREAS OF WEST WIND AT 25 TO 35 MPH WILL CAUSE BLOWING AND DRIFTING SNOW. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES INCLUDING TRAVEL OVER SALT RIVER PASS. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING DURING THIS HOLIDAY WEEKEND. $$ WYZ012-270100- /O.CON.KRIW.SN.Y.0007.000000T0000Z-051127T0100Z/ TETON AND GROS VENTRE MOUNTAINS- 316 PM MST SAT NOV 26 2005 ...SNOW ADVISORY REMAINS IN EFFECT UNTIL 6 PM MST THIS AFTERNOON... A SNOW ADVISORY REMAINS IN EFFECT UNTIL 6 PM MST THIS AFTERNOON. PERIODS OF SNOW WILL CONTINUE TO FALL THE REST OF THIS AFTERNOON. AN ADDITIONAL 1 TO 2 INCHES WILL BE POSSIBLE BEFORE THE SNOW CHANCES DECREASE BY EVENING. AREAS OF WEST WIND OF 25 TO 35 MPH WILL CAUSE BLOWING AND DRIFTING SNOW. TRAVEL OVER TETON PASS WILL BE HAZARDOUS AT TIMES. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING...ESPECIALLY OVER TETON PASS...DURING THIS HOLIDAY WEEKEND. $$ WYZ013-023-025-027-270100- /O.CON.KRIW.SN.Y.0007.000000T0000Z-051127T0100Z/ JACKSON HOLE-STAR VALLEY-UPPER GREEN RIVER BASIN FOOTHILLS- SOUTH LINCOLN COUNTY- INCLUDING THE CITIES OF...JACKSON...AFTON...ALPINE...THAYNE... PINEDALE...KEMMERER...COKEVILLE 316 PM MST SAT NOV 26 2005 ...SNOW ADVISORY REMAINS IN EFFECT UNTIL 6 PM MST THIS AFTERNOON... A SNOW ADVISORY REMAINS IN EFFECT UNTIL 6 PM MST THIS AFTERNOON. PERIODS OF SNOW WILL CONTINUE TO FALL THROUGH THE REST OF THIS AFTERNOON. AN ADDITIONAL INCH OF SNOW WILL BE POSSIBLE BEFORE THE SNOW CHANCES DECREASE BY EVENING. ROADS WILL BE SLICK TO SNOW PACKED. AREAS OF DRIFTING SNOW WILL OCCUR IN OPEN AREAS WITH WIND SPEEDS OF 15 TO 20 MPH. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES IN THE STAR AND JACKSON VALLEYS AND ESPECIALLY OVER THE RIM BETWEEN DANIEL AND BONDURANT. USE CAUTION WHILE DRIVING DURING THIS HOLIDAY WEEKEND. $$ WYZ020-022-270630- /O.CON.KRIW.SN.Y.0007.051127T0100Z-051127T1300Z/ NATRONA COUNTY LOWER ELEVATIONS-CASPER MOUNTAIN- INCLUDING THE CITY OF...CASPER 316 PM MST SAT NOV 26 2005 ...SNOW ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 6 AM MST SUNDAY... A SNOW ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 6 AM MST SUNDAY. SNOW WILL DEVELOP ACROSS THE AREA EARLY THIS EVENING. THE SNOW IS EXPECTED TO BE HEAVY AT TIMES. A QUICK 3 TO 5 INCHES OF SNOW IS EXPECTED BY SUNRISE SUNDAY. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES. USE CAUTION WHILE DRIVING DURING THIS HOLIDAY WEEKEND. $$ FRIEDERS
000 WWUS45 KRIW 270112 WSWRIW URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 612 PM MST SAT NOV 26 2005 ...WINTER WEATHER CONDITIONS PERSIST ACROSS MUCH OF WESTERN AND CENTRAL WYOMING THIS HOLIDAY WEEKEND... .A WINTER STORM WILL CONTINUE TO MOVE EAST ACROSS WYOMING THROUGH SUNDAY. AS A RESULT...SNOWFALL ACROSS WESTERN WYOMING WILL TAPER OFF EARLY THIS EVENING. AT THE SAME TIME...SNOW AND WIND WILL BE ON THE INCREASE ACROSS PORTIONS OF NORTHEAST AND CENTRAL WYOMING. WYZ001-012>015-023>025-027-270215- /O.EXP.KRIW.SN.Y.0007.000000T0000Z-051127T0100Z/ YELLOWSTONE NATIONAL PARK-TETON AND GROS VENTRE MOUNTAINS- JACKSON HOLE-WIND RIVER MOUNTAINS WEST-WIND RIVER MOUNTAINS EAST- STAR VALLEY-SALT RIVER AND WYOMING RANGES- UPPER GREEN RIVER BASIN FOOTHILLS-SOUTH LINCOLN COUNTY- INCLUDING THE CITIES OF...LAKE...MAMMOTH...OLD FAITHFUL... JACKSON...AFTON...ALPINE...THAYNE...PINEDALE...KEMMERER... COKEVILLE 612 PM MST SAT NOV 26 2005 ...SNOW ADVISORY HAS EXPIRED... THE SNOW ADVISORY IS NO LONGER IN EFFECT. AREAS OF LIGHT SNOW WILL STILL OCCUR TONIGHT. ACCUMULATIONS WILL BE AN INCH OR LESS. AREA ROADS WILL BE SLICK IN SPOTS. $$ WYZ010-011-270600- /O.CON.KRIW.WS.W.0002.000000T0000Z-051128T0600Z/ NORTHEAST JOHNSON COUNTY-SOUTHEAST JOHNSON COUNTY- INCLUDING THE CITIES OF...BUFFALO...KAYCEE 612 PM MST SAT NOV 26 2005 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM MST SUNDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM MST SUNDAY. LIGHT SNOW HAS DEVELOPED OVER THE AREA. A PERIOD OF HEAVY SNOWFALL IS ANTICIPATED THIS EVENING WITH 4 TO 6 INCHES OF SNOW IS EXPECTED TO QUICKLY ACCUMULATE. A LIGHTER SNOWFALL WILL CONTINUE LATE TONIGHT THROUGH SUNDAY EVENING FOR SOME ADDITIONAL LIGHTER ACCUMULATIONS. BY LATE TONIGHT...A NORTHWEST WIND OF 25 TO 35 MPH WITH GUSTS OF 40 TO 50 MPH WILL DEVELOP...WHICH WILL PRODUCE CONSIDERABLE BLOWING AND DRIFTING SNOW. THE WORST OF THESE CONDITIONS WILL BE ACROSS THE NORTHEAST HALF OF JOHNSON COUNTY...ESPECIALLY FROM BUFFALO EAST ALONG INTERSTATE 90. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ WYZ008-009-270600- /O.CON.KRIW.WS.W.0002.000000T0000Z-051128T0600Z/ BIGHORN MOUNTAINS WEST-BIGHORN MOUNTAINS SOUTHEAST- 612 PM MST SAT NOV 26 2005 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM MST SUNDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM MST SUNDAY. SNOWFALL WILL CONTINUE TO INCREASE ACROSS THE REGION THIS EVENING. PERIODS OF HEAVY SNOWFALL ARE ANTICIPATED. TOTAL SNOWFALL BY LATE SUNDAY WILL RANGE FROM 8 TO 14 INCHES. IN ADDITION...A NORTHWEST WIND OF 25 TO 35 MPH WITH GUSTS OF 40 TO 50 MPH WILL DEVELOP...WHICH WILL PRODUCE CONSIDERABLE BLOWING AND DRIFTING SNOW IN OPEN AREAS. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ WYZ020-022-270600- /O.CON.KRIW.SN.Y.0007.000000T0000Z-051127T1300Z/ NATRONA COUNTY LOWER ELEVATIONS-CASPER MOUNTAIN- INCLUDING THE CITY OF...CASPER 612 PM MST SAT NOV 26 2005 ...SNOW ADVISORY REMAINS IN EFFECT UNTIL 6 AM MST SUNDAY... A SNOW ADVISORY REMAINS IN EFFECT UNTIL 6 AM MST SUNDAY. LIGHT SNOW HAS DEVELOPED OVER THE AREA. THE SNOW IS EXPECTED TO BE MODERATE TO HEAVY AT TIMES OVERNIGHT. SNOWFALL OF 3 TO 5 INCHES OF SNOW IS EXPECTED BY SUNRISE SUNDAY. AREA ROADWAYS WILL BECOME SLICK TO SNOWPACKED AS THE NIGHT CONTINUES. EXERCISE CAUTION AND ALLOW EXTRA TIME TO REACH YOUR DESTINATION. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES. USE CAUTION WHILE DRIVING DURING THIS HOLIDAY WEEKEND. $$
000 WWUS45 KRIW 270422 WSWRIW URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 922 PM MST SAT NOV 26 2005 ...WINTER WEATHER ONGOING IN CENTRAL WYOMING... .A WINTER STORM WILL CONTINUE TO IMPACT CENTRAL WYOMING OVERNIGHT AND SUNDAY. AREAS FROM BUFFALO TO CASPER WILL SEE THE MOST SNOW FROM THIS SYSTEM. WYZ010-011-271100- /O.CON.KRIW.WS.W.0002.000000T0000Z-051128T0600Z/ NORTHEAST JOHNSON COUNTY-SOUTHEAST JOHNSON COUNTY- INCLUDING THE CITIES OF...BUFFALO...KAYCEE 922 PM MST SAT NOV 26 2005 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM MST SUNDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM MST SUNDAY. LIGHT SNOW WAS FALLING OVER THE AREA THIS EVENING. SNOWFALL HAS BEEN LESS THAN AN INCH THROUGH 9 PM. SNOW WILL OCCUR OVERNIGHT INTO SUNDAY. TOTAL SNOWFALL OF 3 TO 6 INCHES IS EXPECTED. AREAS OF NORTHWEST WIND AT 20 TO 30 MPH WITH GUSTS OVER 40 MPH WILL CAUSE DRIFTING AND BLOWING SNOW. ROAD CONDITIONS WILL BE WORST ACROSS THE NORTHEAST HALF OF JOHNSON COUNTY...ESPECIALLY FROM BUFFALO EAST ALONG INTERSTATE 90. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ WYZ008-009-271100- /O.CON.KRIW.WS.W.0002.000000T0000Z-051128T0600Z/ BIGHORN MOUNTAINS WEST-BIGHORN MOUNTAINS SOUTHEAST- 922 PM MST SAT NOV 26 2005 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM MST SUNDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM MST SUNDAY. SNOW CONTINUED OVER THE BIGHORN MOUNTAINS THIS EVENING. SNOWFALL AMOUNTS FROM AUTOMATED OBSERVING STATIONS IN THESE AREAS RANGE FROM 2 TO 5 INCHES THROUGH 6 PM. SNOW WILL OCCUR THROUGH SUNDAY ALONG WITH A GUSTY NORTHWEST WIND OF 25 TO 40 MPH. TOTAL SNOWFALL BY LATE SUNDAY WILL RANGE FROM 8 TO 14 INCHES. EXPECT CONSIDERABLE BLOWING AND DRIFTING SNOW IN OPEN AREAS. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ WYZ020-022-271100- /O.CON.KRIW.SN.Y.0007.000000T0000Z-051127T1300Z/ NATRONA COUNTY LOWER ELEVATIONS-CASPER MOUNTAIN- INCLUDING THE CITY OF...CASPER 922 PM MST SAT NOV 26 2005 ...SNOW ADVISORY REMAINS IN EFFECT UNTIL 6 AM MST SUNDAY... A SNOW ADVISORY REMAINS IN EFFECT UNTIL 6 AM MST SUNDAY. LIGHT SNOW CONTINUES OVER MOST OF NATRONA COUNTY. SNOWFALL HAS RANGED FROM A TRACE TO AROUND AN INCH. MOST ROADS WERE WET TO SLICK IN SPOTS. SNOW WILL OCCUR OVERNIGHT WITH AROUND 3 INCHES LIKELY BY MORNING. ROADWAYS WILL BECOME SLICK TO SNOWPACKED IN SPOTS AS THE NIGHT CONTINUES. EXERCISE CAUTION AND ALLOW EXTRA TIME TO REACH YOUR DESTINATION. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES. USE CAUTION WHILE DRIVING DURING THIS HOLIDAY WEEKEND. $$
000 WWUS45 KRIW 271003 WSWRIW URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 303 AM MST SUN NOV 27 2005 WYZ010-011-271800- /O.CAN.KRIW.WS.W.0002.000000T0000Z-051128T0600Z/ /O.NEW.KRIW.SN.Y.0008.051127T1003Z-051128T0600Z/ NORTHEAST JOHNSON COUNTY-SOUTHEAST JOHNSON COUNTY- INCLUDING THE CITIES OF...BUFFALO...KAYCEE 303 AM MST SUN NOV 27 2005 ...WINTER STORM WARNING IS CANCELLED... ...SNOW ADVISORY IN EFFECT UNTIL 11 PM MST THIS EVENING... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A SNOW ADVISORY...WHICH IS IN EFFECT UNTIL 11 PM MST THIS EVENING. THE WINTER STORM WARNING HAS BEEN CANCELLED. LIGHT SNOW WAS FALLING OVER THE AREA EARLY THIS MORNING. SNOWFALL HAS BEEN AROUND AN INCH THROUGH 3 AM. SNOW WILL CONTINUE THROUGH THIS EVENING. TOTAL SNOW ACCUMULATIONS OF 2 TO 4 INCHES IS EXPECTED. THE SNOW WILL COMBINE WITH STRONG NORTHWEST WINDS THAT WILL GUST TO 30 MPH AT TIMES. CONSEQUENTLY...VISIBILITIES WILL BE REDUCED IN AREAS OF BLOWING AND DRIFTING SNOW. ROAD CONDITIONS WILL BE WORST ACROSS THE NORTHEAST HALF OF JOHNSON COUNTY...ESPECIALLY FROM BUFFALO EAST ALONG INTERSTATE 90. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ WYZ020-022-271115- /O.CAN.KRIW.SN.Y.0007.000000T0000Z-051127T1300Z/ NATRONA COUNTY LOWER ELEVATIONS-CASPER MOUNTAIN- INCLUDING THE CITY OF...CASPER 303 AM MST SUN NOV 27 2005 ...SNOW ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS CANCELLED THE SNOW ADVISORY. THE HEAVIEST SNOW HAS COME TO AN END ACROSS NATRONA COUNTY...THEREFORE THE SNOW ADVISORY HAS BEEN CANCELLED. $$ WYZ008-009-271800- /O.CON.KRIW.WS.W.0002.000000T0000Z-051128T0600Z/ BIGHORN MOUNTAINS WEST-BIGHORN MOUNTAINS SOUTHEAST- 303 AM MST SUN NOV 27 2005 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING. SNOW CONTINUES OVER THE BIGHORN MOUNTAINS EARLY THIS MORNING. SNOWFALL AMOUNTS FROM AUTOMATED OBSERVING STATIONS IN THESE AREAS RANGE FROM 4 TO 7 INCHES THROUGH MIDNIGHT. SNOW WILL OCCUR THROUGH THIS EVENING ALONG WITH A GUSTY NORTHWEST WIND OF 25 TO 40 MPH. TOTAL SNOW ACCUMULATIONS WILL RANGE FROM 8 TO 14 INCHES. EXPECT CONSIDERABLE BLOWING AND DRIFTING SNOW IN OPEN AREAS. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$
000 WWUS45 KRIW 271657 WSWRIW URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 957 AM MST SUN NOV 27 2005 WYZ008-009-271800- /O.CAN.KRIW.WS.W.0002.000000T0000Z-051128T0600Z/ BIGHORN MOUNTAINS WEST-BIGHORN MOUNTAINS SOUTHEAST- 957 AM MST SUN NOV 27 2005 ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS CANCELLED THE WINTER STORM WARNING. LIGHT SNOW SHOWERS WILL CONTINUE THIS AFTERNOON...BUT ADDITIONAL SNOWFALL AMOUNTS WILL REMAIN LIGHT. $$ WYZ010-011-271800- /O.CAN.KRIW.SN.Y.0008.000000T0000Z-051128T0600Z/ NORTHEAST JOHNSON COUNTY-SOUTHEAST JOHNSON COUNTY- INCLUDING THE CITIES OF...BUFFALO...KAYCEE 957 AM MST SUN NOV 27 2005 ...SNOW ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS CANCELLED THE SNOW ADVISORY. LIGHT SNOW SHOWERS WILL CONTINUE THIS AFTERNOON...BUT ADDITIONAL SNOWFALL AMOUNTS WILL REMAIN LIGHT. $$ FRIEDERS
What forecasters said that day
The local office's own words before this winter storm 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 winter storm warning went out at Nov 26, 4:21 AM MST, 6 hours 37 minutes earlier.
Area forecast discussion, Nov 26, 4:21 AM MST, 6 hours 37 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE RIVERTON WY 421 AM MST SAT NOV 26 2005 .SHORT TERM...TODAY THROUGH MONDAY NIGHT... A COMPLEX 48 HOURS SETTING UP ACROSS WESTERN AND CENTRAL WYOMING THIS HOLIDAY WEEKEND. THE PERSISTENT OMEGA BLOCKING PATTERN THAT HAD BEEN IN CONTROL OF THE WEATHER FOR THE PAST 10 DAYS HAS BROKEN DOWN ALLOWING FLOW TO BECOME MUCH MORE PROGRESSIVE. THE RESULT WILL BE A LARGE TROF DEVELOPING ACROSS THE CENTRAL CONUS BY EARLY NEXT WEEK. KRIW 88D THAT IS LIGHTING UP THIS AM IS TELLING THE STORY...AS WEBCAMS ACROSS WESTERN WY INDICATE APPROXIMATELY 1 TO 3 INCHES OF NEW SNOWFALL BY 08Z. THIS PRECIPITATION FORMED THROUGH THE COMBINATION OF A STRONG SHORTWAVE ROTATING THROUGH THE BASE OF A NEGATIVELY TILTED TROF COUPLED WITH UPPER LEVEL DIVERGENCE WITHIN A THERMALLY INDIRECT CIRCULATION. THIS SHORTWAVE WILL CONTINUE TO PUSH NORTHEAST ACROSS THE CWFA THIS MORNING ALLOWING SFC CYCLONE TO DEVELOP IN NE WY. AS A RESULT...THE THREAT OF PERIODIC SNOW WILL EXIST ACROSS THE ENTIRE CWFA...WITH BEST ACCUMULATIONS AND POPS IN THE WEST. EXPECT GENERALLY 4 TO 6 INCHES IN WESTERN VALLEYS...WITH 6 TO 10 INCHES IN THE HIGHER ELEVATIONS. SO HAVE MAINTAINED GOING SNOW ADVISORIES FOR WESTERN MOUNTAINS AND VALLEYS. BY THIS AFTERNOON...ATTENTION SHIFTS EAST OF THE DIVIDE AS A SFC COLD FRONT DIVES SOUTH...INTO THE BIG HORN BASIN BY NOON...AND INTO CENTRAL PORTIONS OF THE CWFA BY MID AFTERNOON. HAVE INCREASED POPS TO CATEGORICAL IN DEEP MOISTURE ASCENT ALONG THE FRONT TO REFLECT THIS TIMING. GIVEN THE SPEED OF THIS FRONT EXPECT AREAS IN THE BIG HORN AND WIND RIVER BASINS TO SEE GENERALLY 1 TO 3 INCHES...3 TO 5 INCHES IN THE ADJACENT MOUNTAINS. AREAS FROM BUFFALO TO CASPER WILL BE IN CLOSER PROXIMITY OF BEST FORCING...WHICH WILL ULTIMATELY YIELD HIGHER SNOWFALL ACCUMULATIONS. FOR NOW... THINKING 3 TO 5 INCHES IN THE LOWER ELEVATIONS OF JOHNSON AND NATRONA LOOKS GOOD. HOWEVER...WILL LET DAY SHIFT RE-EVALUATE 12Z MODEL DATA TO MAKE THE FINAL DECISION OF UPGRADING HIGHLITES. SOME OF THE SNOWFALL RATES WILL BE QUITE INTENSE AT TIMES IN VICINITY OF THE FRONT WHERE LAPSE RATES WILL EXCEED 7CKM AND LIS APPROACH ZERO. PRECIP TURNS SHOWERY LATE TONIGHT AS FORCING WANES. THE OTHER STORY OF THE FROPA WILL BE THE BITTERLY COLD AIR THAT FILTERS IN ITS WAKE. TEMPERATURES IN THE SINGLE DIGITS IN THE WESTERN VALLEYS WITH TEENS EAST OF THE DIVIDE. ANOTHER INVERTED PRESSURE TROF ROTATES THROUGH ON SUNDAY...GIVING MAINLY NE ZONES ANOTHER COUPLE OF INCHES OF SNOW. OTHERWISE LEFT SLIGHT CHANCE POPS MAINLY IN MOUNTAIN LOCATIONS. SUB- ZERO TEMPERATURES WILL RETURN TO WESTERN WYOMING SUNDAY NIGHT BENEATH CLEARING SKIES. FOG WILL BE A POSSIBILITY IN THE VALLEYS OF WESTERN WYOMING AS LOW LEVELS SATURATE BENEATH WAA ALOFT. ISENTROPIC/WAA ADVECTION SNOW WILL EMBARK UPON WESTERN WYOMING LATE MONDAY AFTERNOON AND MONDAY NIGHT AS ANOTHER TROF PUSHES INTO THE NORTHERN ROCKIES. REALITY HAS SET IN ACROSS WESTERN AND CENTRAL WYOMING...AS TEMPERATURES FIND SUPPORT AROUND CLIMATOLOGICAL AVERAGES THROUGH THE SHORT TERM. .LONG TERM...TUESDAY THROUGH FRIDAY... OVERALL FAIR AGREEMENT CONTINUES WITH EXTENDED MODELS CONSIDERING THE COMPLEXITY OF THE FORECAST. CONTINUED TREND FOR COLDER TEMPERATURES AND INCREASED CHANCE OF PRECIPITATION. MAIN DIFFERENCES IN MODELS ARE IN THE LOCATION AND TIMING OF SMALLER SHORT WAVE FEATURES WITHIN THE BROAD UPPER LEVEL TROUGH. A SERIES OF UPPER LEVEL LOW PRESSURE TROUGHS ARE EXPECTED TO IMPACT THE WEATHER ACROSS WESTERN AND CENTRAL WYOMING THROUGH THIS TIME PERIOD. BY WEDNESDAY MOISTURE SHOULD DECREASE BUT AIR MASS WILL BE COLD WITH LONG WAVE TROUGH ENTRENCHED ACROSS THE WESTERN AND CENTRAL U.S. THIS PATTERN REMAINS IN PLACE ON THURSDAY. MOST OF THE PRECIPITATION THIS TIME PERIOD SHOULD BE IN THE MOUNTAINS AND WEST. WITH THE THREAT OF PRECIPITATION OVER A PROLONGED PERIOD...SNOW COVER COULD HAVE A SIGNIFICANT IMPACT ON TEMPERATURES THROUGH THE EXTENDED. ANOTHER PRECIPITATION EVENT THREATENS FRIDAY. EXPECT THE TREND FOR COLDER TEMPERATURES TO CONTINUE WITH FORECAST TEMPERATURES DECREASING OVER THE NEXT FEW NIGHTS. && .RIW WATCHES/WARNINGS/ADVISORIES...SNOW ADVISORY FOR WESTERN WYOMING TODAY...ZONES 001-012>015-023>025-027. WINTER STORM WATCH TODAY THROUGH SUNDAY...BIGHORN MOUNTAINS AND JOHNSON COUNTY...ZONES 008>011. && SHORT TERM...HAHN LONG TERM...C.BAKER
Hazardous weather outlook, Nov 26, 5:01 AM MST, 5 hours 57 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE RIVERTON WY 501 AM MST SAT NOV 26 2005 WYZ001>020-022>030-271201- 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- 501 AM MST SAT NOV 26 2005 ...SNOW ADVISORY FOR WESTERN WYOMING THROUGH THIS AFTERNOON... ...WINTER STORM WATCH FOR THE BIGHORN MOUNTAINS AND JOHNSON COUNTY THIS AFTERNOON THROUGH SUNDAY... THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN AND CENTRAL WYOMING. .DAY ONE...TODAY AND TONIGHT... SNOW WILL CONTINUE TO FALL ACROSS THE VALLEYS AND MOUNTAINS OF WESTERN WYOMING TODAY. THE STAR AND JACKSON VALLEYS...ALONG WITH THE UPPER GREEN RIVER BASIN FOOTHILLS CAN EXPECTED 4 TO 6 INCHES OF SNOW BY THIS EVENING. THE ADJACENT MOUNTAINS WILL LIKELY PICK UP 6 TO 10 INCHES OF TOTAL SNOW. EAST OF THE DIVIDE...A COLD FRONT WILL DIVE SOUTH INTO THE BIG HORN BASIN AND JOHNSON COUNTY LATE THIS MORNING...AND INTO CENTRAL AREAS BY MID AFTERNOON. THE GREATEST THREAT OF ACCUMULATING SNOWS WILL BE RESERVED FOR THE BIGHORN MOUNTAINS...AND LOWER ELEVATIONS OF JOHNSON AND NATRONA COUNTIES. TOTAL SNOW ACCUMULATIONS OF 3 TO 5 INCHES WILL POSSIBLE IN LOWER ELEVATIONS WITH 5 TO 7 POSSIBLE IN THE BIGHORN MOUNTAINS. THE FRONT WILL ALSO BE ACCOMPANIED BY GUSTY WINDS WHICH WILL CREATE AREAS OF BLOWING AND DRIFTING SNOW. LOW TEMPERATURES WILL DIP INTO THE SINGLE DIGITS ACROSS WESTERN WYOMING OVERNIGHT. IF TRAVEL IS NECESSARY ACROSS WESTERN AND CENTRAL WYOMING...MOTORISTS SHOULD PREPARE FOR WINTRY DRIVING CONDITIONS. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY SNOW SHOWERS WILL CONTINUE ON SUNDAY...WITH JOHNSON COUNTY AND THE BIGHORN MOUNTAINS POTENTIALLY PICKING UP ANOTHER SEVERAL INCHES OF SNOW. BITTERLY COLD AIR WILL SET INTO THE WESTERN VALLEYS SUNDAY NIGHT. ANOTHER SYSTEM IS EXPECTED TO APPROACH THE REGION BY LATE MONDAY. THIS SYSTEM WILL BRING EVEN COLDER WEATHER TO THE AREA WITH A ANOTHER GOOD CHANCE OF SNOW BY MONDAY NIGHT THROUGH WEDNESDAY. SNOWFALL AMOUNTS ARE STILL UNCERTAIN FROM THIS SYSTEM...BUT THE POTENTIAL EXISTS FOR SEVERAL INCHES OF ADDITIONAL ACCUMULATION. STAY TUNED OVER THE NEXT SEVERAL DAYS AS THE POTENTIAL OF THESE STORMS BECOME MORE CLEAR. .SPOTTER INFORMATION STATEMENT... SPOTTER ARE ENCOURAGED TO REPORT SNOWFALL AMOUNTS. THANK YOU. TRIW
Nearby
Winter Storm Warnings in Wyoming, 2005Every winter storm warning in 2005
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.