Alert archive / Wyoming / Winter Storm Warnings in 2012
Winter Storm Warning 9, NWS Cheyenne, WY
NWS Cheyenne, WY issued this winter storm warning at Oct 12, 2012, 1:51 AM MDT for Albany County, Carbon County, Wyoming. It took effect at Oct 12, 2012, 9:00 PM MDT. It was in force for 15 hr. 17 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
- Oct 12, 2012, 1:51 AM MDT (07:51 UTC)
- In effect from
- Oct 12, 2012, 9:00 PM MDT
- Expired
- Oct 13, 2012, 11:55 AM MDT
- In force
- 15 hr
- Issued by
- NWS Cheyenne, WY
Counties Albany County, WY, Carbon County, WY
The radar
The Cheyenne radar (KCYS), 140 km from the middle of the area, began a volume at 07:54 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 |
|---|---|---|---|
| Oct 13, 4:00 AM MDT | SNOW 3 | 11 Sse Encampment, WY | BLACKHALL MOUNTAIN SNOTEL. ELEVATION 9820 FEET. SWE 0.3 INCHES FROM 13/01L TO 13/04L. 10 TO 1 RATIO USED. |
| Oct 13, 4:00 AM MDT | SNOW 3 | Sw Hog Park Reservoir, WY | WHISKEY PARK SNOTEL. ELEVATION 8950 FEET. SWE 0.3 INCHES FROM 13/01 TO 13/04L. 10 TO 1 RATIO USED. |
| Oct 13, 5:30 AM MDT | HEAVY SNOW 0 | 25 E Baggs, WY | WYDOT WEBCAM AT MP 30 ON HIGHWAY 70 SHOWS VERY LOW VISIBILITIES IN SNOW.VSBY ESTIMATED AT MAYBE 1/4 MILE. |
| Oct 13, 8:00 AM MDT | SLEET 1 | 30 Wnw Laramie, WY | THIS IS SAND LAKE SNOTEL SITE. SWE 0.1. RATIO 10 TO 1. SNOWFALL 1.0 INCHS. |
| Oct 13, 8:00 AM MDT | SNOW 0.8 | 17 Ene Riverside, WY | THIS IS SOUTH BRUSH CREEK SNOTEL SITE. SWE 0.1. RATIO 8 TO 1. SNOWFALL 0.8 INCHES. |
| Oct 13, 8:00 AM MDT | SNOW 1 | 30 Wnw Laramie, WY | THIS IS SAND LAKE SNOTEL SITE. SWE 0.1. RATIO 10 TO 1. SNOWFALL 1.0 INCHS. |
| Oct 13, 8:00 AM MDT | SNOW 1 | 6 Sw Centennial, WY | THIS IS CINNABAR PARK SNOTEL SITE. SWE 0.1. RATIO 10 TO 1. SNOWFALL 1.0 INCHES. |
| Oct 13, 8:00 AM MDT | SNOW 1 | 7 Nw Centennial, WY | THIS IS BROOKLIN LAKE SNOTEL SITE. SWE 0.1. RATIO 10 TO 1. SNOWFALL 1.0 INCHES. |
| Oct 13, 8:00 AM MDT | SNOW 1 | Wnw Centennial, WY | THIS IS NORTH FRENCH CREEK SNOTEL SITE. SWE 0.1. RATIO 10 TO 1. SNOWFALL 1.0 INCHES. |
| Oct 13, 8:00 AM MDT | SNOW 2 | 28 E Savery, WY | THIS IS WHISKY PARK SNOTEL SITE. SWE 0.2 RATIO 10 TO 1. SNOWFALL 2.0 INCHES. |
| Oct 13, 8:00 AM MDT | SNOW 3 | 11 Sse Encampment, WY | THIS IS BLACKHALL MOUNTAIN SNOTEL SITE. SWE 0.3. RATIO 10 TO 1. SNOWFALL 3.0 INCES. |
| Oct 13, 8:30 AM MDT | SNOW 4 | 30 Sw Laramie, WY | THIS IS ALBANY LODGE IN THE SNOWY RANGE. |
| Oct 13, 12:00 PM MDT | SNOW 3 | 17 Ene Riverside, WY | SOUTH BRUSH CREEK SNOTEL. ELEVATION 8440 FEET. SWE 0.3 INCHES FROM 13/01L TO 13/12L. 10 TO 1 RATIO USED. |
| Oct 13, 12:00 PM MDT | SNOW 3 | 7 Nw Centennial, WY | BROOKLYN LAKE SNOTEL. ELEVATION 10240 FEET. SWE 0.3 INCHES FROM 13/01L TO 13/12L. 10 TO 1 RATIO USED. |
| Oct 13, 12:00 PM MDT | SNOW 5 | 12 Wnw Centennial, WY | NORTH FRENCH CREEK SNOTEL. ELEVATION 10130 FEET. SWE 0.5 INCHES FROM 13/01L TO 13/12L. 10 TO 1 RATIO USED. |
| Oct 13, 12:00 PM MDT | SNOW 5 | 1 Sw Hog Park Reservoir, WY | WHISKEY PARK SNOTEL. ELEVATION 8950 FEET. SWE 0.5 INCHES FROM 13/01L TO 13/12L. 10 TO 1 RATIO USED. |
| Oct 13, 12:00 PM MDT | SNOW 7 | 11 Sse Encampment, WY | BLACKHALL MOUNTAIN SNOTEL. ELEVATION 9820 FEET. SWE 0.7 INCHES FROM 13/01L TO 13/12L. 10 TO 1 RATIO USED. |
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 00:00Z, 7.9 hours before the alert went out and 230 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
- 2047 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 73 m²/s²
- 0-3 km storm-relative helicity
- 166 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
269 WWUS45 KCYS 120751 WSWCYS URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE CHEYENNE WY 151 AM MDT FRI OCT 12 2012 ...WINTER STORM WARNING IN EFFECT FOR THE SNOWY AND SIERRA MADRE RANGES TONIGHT INTO SATURDAY... .A PACIFIC LOW PRESSURE SYSTEM CURRENTLY OVER CENTRAL AND SOUTHERN CALIFORNIA WILL MOVE EAST-NORTHEAST TODAY AND EVENTUALLY MOVE OVER THE SOUTHERN PANHANDLE BY SATURDAY MORNING. THIS LOW PRESSURE SYSTEM WILL BRING STRONG WINDS AND HEAVY SNOW TO THE SNOWY AND SIERRA MADRE RANGES TONIGHT INTO SATURDAY. VALLEY LOCATIONS CAN EXPECT RAIN WITH SNOW ABOVE 9000 FEET. THE LOW WILL MOVE TO THE EAST SATURDAY WITH ACCUMULATING SNOW ENDING BY NOON. WYZ112-114-130000- /O.UPG.KCYS.WS.A.0006.121013T0000Z-121013T2100Z/ /O.NEW.KCYS.WS.W.0009.121013T0300Z-121013T1800Z/ SIERRA MADRE RANGE-SNOWY RANGE- INCLUDING THE CITIES OF...CENTENNIAL...ALBANY...WOODS LANDING 151 AM MDT FRI OCT 12 2012 ...WINTER STORM WARNING IN EFFECT FROM 9 PM THIS EVENING TO NOON MDT SATURDAY... THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WINTER STORM WARNING FOR STRONG WINDS AND HEAVY SNOW...WHICH IS IN EFFECT FROM 9 PM THIS EVENING TO NOON MDT SATURDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * TIMING...MODERATE TO HEAVY SNOW TO BEGIN AROUND 9 PM THIS EVENING WITH BEST CHANCES FOR HEAVY SNOW BETWEEN MIDNIGHT AND 6 AM SATURDAY. ACCUMULATING SNOW SHOULD END AROUND NOON SATURDAY. * TOTAL SNOW ACCUMULATIONS...6 TO 12 INCHES WITH LOCALLY HIGHER AMOUNTS POSSIBLE. * WINDS/VISIBILITIES...WINDS GUSTING TO 55 MPH LIKELY LEADING TO NEAR WHITEOUT CONDITIONS...WIDESPREAD BLOWING AND DRIFTING SNOW TONIGHT THROUGH SATURDAY MORNING. * IMPACTS...HAZARDOUS TRAVEL CONDITIONS IN THE SNOWY AND SIERRA MADRE RANGES TONIGHT THROUGH SATURDAY MORNING. OUTDOOR ACTIVITIES WILL BE HAMPERED DUE TO THE SNOW AND BLOWING SNOW. CAMPERS AND HUNTERS COULD EASILY BECOME LOST AND DISORIENTED IN THESE WHITEOUT CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... AVOID TRAVEL IN THE WARNING AREA. IF YOU ARE PLANNING TO TRAVEL IN THE WARNING AREA...LISTEN TO THE LATEST WEATHER FORECAST AND CONSIDER TRAVELING AT ANOTHER TIME OR BY ANOTHER ROUTE. IF YOU MUST TRAVEL IN THE WARNING AREA...TAKE ALONG A WINTER SURVIVAL KIT. IF YOU BECOME STRANDED IN A RURAL AREA...STAY WITH YOUR VEHICLE UNTIL HELP ARRIVES. TO KEEP WARM IN YOUR VEHICLE...RUN YOUR ENGINE 10 MINUTES EACH HOUR...AND MAKE SURE THE EXHAUST PIPE IS CLEAR OF SNOW TO AVOID CARBON MONOXIDE POISONING. && $$
3 follow-up statements
962 WWUS45 KCYS 122108 WSWCYS URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE CHEYENNE WY 308 PM MDT FRI OCT 12 2012 ...WINTER STORM WARNING IN EFFECT FOR THE SNOWY AND SIERRA MADRE RANGES TONIGHT INTO SATURDAY... .A PROGRESSIVE PACIFIC TROUGH WILL MOVE TO WESTERN NEBRASKA BY SATURDAY MORNING. THIS LOW PRESSURE SYSTEM WILL BRING STRONG WINDS AND HEAVY SNOW TO THE SNOWY AND SIERRA MADRE RANGES TONIGHT INTO SATURDAY. VALLEY LOCATIONS CAN EXPECT RAIN WITH SNOW ABOVE 9000 FEET. THE TROUGH WILL MOVE TO THE EAST SATURDAY WITH ACCUMULATING SNOW ENDING BY EARLY AFTERNOON. ACROSS THE SIERRA MADRE AND SNOWY RANGES...FALLING AND BLOWING SNOW WILL COMBINE WITH BLUSTERY WINDS TO PRODUCE NEAR ZERO VISIBILITY AT TIMES ALONG WITH WHITEOUT CONDITIONS. WYZ112-114-131200- /O.CON.KCYS.WS.W.0009.121013T0300Z-121013T1800Z/ SIERRA MADRE RANGE-SNOWY RANGE- INCLUDING THE CITIES OF...CENTENNIAL...ALBANY...WOODS LANDING 308 PM MDT FRI OCT 12 2012 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 9 PM THIS EVENING TO NOON MDT SATURDAY... A WINTER STORM WARNING REMAINS IN EFFECT FROM 9 PM THIS EVENING TO NOON MDT SATURDAY. * TIMING...MODERATE TO HEAVY SNOW BEGINNING AROUND 9 PM THIS EVENING WITH BEST CHANCES FOR HEAVY SNOW BETWEEN MIDNIGHT AND 6 AM SATURDAY. ACCUMULATING SNOW SHOULD END AROUND NOON SATURDAY. * TOTAL SNOW ACCUMULATIONS...5 TO 10 INCHES WITH LOCALLY HIGHER AMOUNTS ON UPWIND SLOPES. * WINDS/VISIBILITIES...WINDS GUSTING TO 50 MPH LEADING TO WHITEOUT CONDITIONS...WIDESPREAD BLOWING AND DRIFTING SNOW TONIGHT THROUGH SATURDAY MORNING. * IMPACTS...HAZARDOUS TRAVEL CONDITIONS IN THE SNOWY AND SIERRA MADRE RANGES THROUGH SATURDAY MORNING. OUTDOOR ACTIVITIES WILL BE HAMPERED DUE TO THE SNOW AND BLOWING SNOW. CAMPERS AND HUNTERS COULD EASILY BECOME LOST AND DISORIENTED IN THESE WHITEOUT CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... AVOID TRAVEL IN THE WARNING AREA. IF YOU ARE PLANNING TO TRAVEL IN THE WARNING AREA...LISTEN TO THE LATEST WEATHER FORECAST AND CONSIDER TRAVELING AT ANOTHER TIME OR BY ANOTHER ROUTE. IF YOU MUST TRAVEL IN THE WARNING AREA...TAKE ALONG A WINTER SURVIVAL KIT. IF YOU BECOME STRANDED IN A RURAL AREA...STAY WITH YOUR VEHICLE UNTIL HELP ARRIVES. TO KEEP WARM IN YOUR VEHICLE...RUN YOUR ENGINE 10 MINUTES EACH HOUR...AND MAKE SURE THE EXHAUST PIPE IS CLEAR OF SNOW TO AVOID CARBON MONOXIDE POISONING. && $$ RUBIN
969 WWUS45 KCYS 131004 WSWCYS URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE CHEYENNE WY 404 AM MDT SAT OCT 13 2012 ...WINTER STORM WARNING IN EFFECT FOR THE SNOWY AND SIERRA MADRE RANGES THROUGH NOON TODAY... .LATEST RADAR IMAGERY STARTING TO SHOW AREA OF PRECIPITATION OVER AND WEST OF THE LARAMIE RANGE EXPANDING IN COVERAGE AND INTENSITY. WITH TEMPERATURES RIGHT AROUND FREEZING IN THE SNOWY AND SIERRA MADRE RANGES...AS THIS AREA APPROACHES THE MOUNTAINS...ALL PRECIPITATIONS SHOULD FALL IN THE FORM OF SNOW ABOVE 9000 FEET. WIND REPORTS FROM THE ROUTT PORTABLE RAWS SITE SHOWING WINDS GUSTING IN EXCESS OF 40 MPH. WILL KEEP THE WINTER STORM WARNING GOING THROUGH THE MORNING AS THE LOW PRESSURE SLOWLY MOVES EAST. HEAVY SNOW SHOULD COME TO AN END BY LATE MORNING. WYZ112-114-131800- /O.CON.KCYS.WS.W.0009.000000T0000Z-121013T1800Z/ SIERRA MADRE RANGE-SNOWY RANGE- INCLUDING THE CITIES OF...CENTENNIAL...ALBANY...WOODS LANDING 404 AM MDT SAT OCT 13 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON MDT TODAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON MDT TODAY. * TIMING...MODERATE TO HEAVY SNOW TO CONTINUE THROUGH 10 AM THIS MORNING ACCUMULATING SNOW SHOULD END AROUND NOON SATURDAY. * TOTAL SNOW ACCUMULATIONS...5 TO 10 INCHES WITH LOCALLY HIGHER AMOUNTS ON UPWIND SLOPES. * WINDS/VISIBILITIES...WINDS GUSTING TO 50 MPH LEADING TO WHITEOUT CONDITIONS...WIDESPREAD BLOWING AND DRIFTING SNOW TONIGHT THROUGH SATURDAY MORNING. * IMPACTS...HAZARDOUS TRAVEL CONDITIONS IN THE SNOWY AND SIERRA MADRE RANGES THROUGH SATURDAY MORNING. OUTDOOR ACTIVITIES WILL BE HAMPERED DUE TO THE SNOW AND BLOWING SNOW. CAMPERS AND HUNTERS COULD EASILY BECOME LOST AND DISORIENTED IN THESE WHITEOUT CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... AVOID TRAVEL IN THE WARNING AREA. IF YOU ARE PLANNING TO TRAVEL IN THE WARNING AREA...LISTEN TO THE LATEST WEATHER FORECAST AND CONSIDER TRAVELING AT ANOTHER TIME OR BY ANOTHER ROUTE. IF YOU MUST TRAVEL IN THE WARNING AREA...TAKE ALONG A WINTER SURVIVAL KIT. IF YOU BECOME STRANDED IN A RURAL AREA...STAY WITH YOUR VEHICLE UNTIL HELP ARRIVES. TO KEEP WARM IN YOUR VEHICLE...RUN YOUR ENGINE 10 MINUTES EACH HOUR...AND MAKE SURE THE EXHAUST PIPE IS CLEAR OF SNOW TO AVOID CARBON MONOXIDE POISONING. && $$
922 WWUS45 KCYS 131755 WSWCYS URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE CHEYENNE WY 1155 AM MDT SAT OCT 13 2012 ...WINTER STORM WARNING ENDS AT NOON... .SNOW SHOWERS WILL CONTINUE TO DECREASE IN AREAL COVERAGE THIS AFTERNOON AS THE STORM SYSTEM MOVES TO THE EAST. WYZ112-114-131900- /O.CAN.KCYS.WS.W.0009.000000T0000Z-121013T1800Z/ SIERRA MADRE RANGE-SNOWY RANGE- INCLUDING THE CITIES OF...CENTENNIAL...ALBANY...WOODS LANDING 1155 AM MDT SAT OCT 13 2012 ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS CANCELLED THE WINTER STORM WARNING. ALTHOUGH SNOW SHOWERS WILL DECREASE IN AREAL COVERAGE THE REST OF THE AFTERNOON...EXPECT AREAS OF BLOWING SNOW AND REDUCED VISIBILITIES DUE TO THE BLUSTERY WEST WINDS. $$ RUBIN
Nearby
Winter Storm Warnings in Wyoming, 2012Every winter storm 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.