Alert archive / Wyoming / Flash Flood Watches in 2012
Flash Flood Watch 2, NWS Cheyenne, WY
NWS Cheyenne, WY issued this flash flood watch at Jul 6, 2012, 1:37 PM MDT for 6 counties in Wyoming; Banner County, Cheyenne County, Kimball County, Nebraska. It took effect at Jul 6, 2012, 4:00 PM MDT. It was in force for 47 hr.
The area
The counties it named.
The facts
- Issued
- Jul 6, 2012, 1:37 PM MDT (19:37 UTC)
- In effect from
- Jul 6, 2012, 4:00 PM MDT
- Expired
- Jul 8, 2012, 3:25 PM MDT
- In force
- 47 hr
- Issued by
- NWS Cheyenne, WY
- Flood severity
- None
Counties Banner County, NE, Cheyenne County, NE, Kimball County, NE, Albany County, WY, Carbon County, WY, Converse County, WY, Goshen County, WY, Laramie County, WY, Platte County, WY
The radar
The Cheyenne radar (KCYS), 68 km from the middle of the area, began a volume at 19:37 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
Denver, CO (KDNR), launched 12:00Z, 7.6 hours before the alert went out and 245 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
- 2053 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- -1 m²/s²
- 0-3 km storm-relative helicity
- 28 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
921 WGUS65 KCYS 061937 FFACYS URGENT - IMMEDIATE BROADCAST REQUESTED FLOOD WATCH NATIONAL WEATHER SERVICE CHEYENNE WY 137 PM MDT FRI JUL 6 2012 ...THUNDERSTORMS WITH VERY HEAVY RAINFALL BECOMING INCREASINGLY LIKELY TONIGHT THROUGH SATURDAY... .SUBTROPICAL MOISTURE WILL COMBINE WITH A STRONG UPPER LEVEL DISTURBANCE AND MOIST UPSLOPE FLOW TO ALLOW NUMEROUS SHOWERS AND THUNDERSTORMS TO DEVELOP OVER SOUTHEAST WYOMING ON FRIDAY AFTERNOON AND EVENING. THIS ACTIVITY WILL LIKELY PERSIST THROUGH MUCH OF THE DAY ON SATURDAY...AND MAY PRODUCE VERY HEAVY RAINFALL AND LOCALIZED FLASH FLOODING. THE GREATEST RISK FOR FLASH FLOODING WILL BE IN URBAN AREAS AND THOSE LOCATIONS IMPACTED BY RECENT WILD FIRES. WYZ103-105>107-110-114>118-070545- /O.NEW.KCYS.FF.A.0002.120706T2200Z-120708T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ NORTH LARAMIE RANGE-SHIRLEY BASIN- CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY- EAST PLATTE COUNTY-NORTH SNOWY RANGE FOOTHILLS-SNOWY RANGE- LARAMIE VALLEY-SOUTH LARAMIE RANGE-SOUTH LARAMIE RANGE FOOTHILLS- CENTRAL LARAMIE COUNTY- INCLUDING THE CITIES OF...MEDICINE BOW...BORDEAUX...GLENDO... WHEATLAND...CHUGWATER...GUERNSEY...ARLINGTON...ELK MOUNTAIN... CENTENNIAL...ALBANY...WOODS LANDING...LARAMIE...VEDAUWOO... BUFORD...PUMPKIN VINE...HORSE CREEK...HARRIMAN...WHITAKER... CHEYENNE 137 PM MDT FRI JUL 6 2012 ...FLASH FLOOD WATCH IN EFFECT THROUGH SATURDAY AFTERNOON... THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A * FLASH FLOOD WATCH FOR PORTIONS OF EAST CENTRAL WYOMING...SOUTH CENTRAL WYOMING AND SOUTHEAST WYOMING...INCLUDING THE FOLLOWING AREAS...IN EAST CENTRAL WYOMING...CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY...EAST PLATTE COUNTY AND NORTH LARAMIE RANGE. IN SOUTH CENTRAL WYOMING...NORTH SNOWY RANGE FOOTHILLS...SHIRLEY BASIN AND SNOWY RANGE. IN SOUTHEAST WYOMING...CENTRAL LARAMIE COUNTY...LARAMIE VALLEY...SOUTH LARAMIE RANGE AND SOUTH LARAMIE RANGE FOOTHILLS. * THROUGH SATURDAY AFTERNOON * SLOW MOVING SHOWERS AND THUNDERSTORMS WILL DEVELOP OVER THE SNOWY AND LARAMIE MOUNTAIN RANGES AND ADJACENT HIGH PLAINS ON FRIDAY AFTERNOON AND EVENING. THIS ACTIVITY WILL PERSIST THROUGH THE DAY ON SATURDAY...AND WILL BE CAPABLE OF PRODUCING LOCALLY VERY HEAVY RAINFALL WHICH MAY LEAD TO FLASH FLOODING. * EXCESSIVE RAINFALL COULD RESULT IN RAPID RUNOFF...WHICH MAY CAUSE FLOODING OF URBANIZED AREAS AND SMALL CREEKS AND STREAMS. BURN SITES OF ONGOING AND RECENT WILD FIRES MAY ALSO BE AT RISK FOR FLASH FLOODING AND POSSIBLE LANDSLIDES...ESPECIALLY ALONG THE STEEPER SLOPES OF THE SNOWY RANGE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && $$ HAMMER
9 follow-up statements
495 WGUS65 KCYS 070225 FFACYS FLOOD WATCH NATIONAL WEATHER SERVICE CHEYENNE WY 825 PM MDT FRI JUL 6 2012 ...THUNDERSTORMS WITH VERY HEAVY RAINFALL TO MOVE INTO THE AREA LATER TONIGHT AND SATURDAY... .MONSOONAL MOISTURE WILL COMBINE WITH A SLOW MOVING UPPER LEVEL DISTURBANCE AND MOIST UPSLOPE FLOW TO BRING AN AREA OF SHOWERS AND THUNDERSTORMS INTO THE AREA AFTER MIDNIGHT. THIS ACTIVITY WILL PERSIST THROUGH SATURDAY...AND MAY PRODUCE VERY HEAVY RAINFALL ALONG WITH LOCALIZED FLASH FLOODING. THE GREATEST RISK FOR FLASH FLOODING WILL BE IN URBAN AREAS AND THOSE LOCATIONS IMPACTED BY RECENT WILDFIRES. WYZ103-105>107-110-114>118-071200- /O.CON.KCYS.FF.A.0002.000000T0000Z-120708T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ NORTH LARAMIE RANGE-SHIRLEY BASIN- CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY- EAST PLATTE COUNTY-NORTH SNOWY RANGE FOOTHILLS-SNOWY RANGE- LARAMIE VALLEY-SOUTH LARAMIE RANGE-SOUTH LARAMIE RANGE FOOTHILLS- CENTRAL LARAMIE COUNTY- INCLUDING THE CITIES OF...MEDICINE BOW...BORDEAUX...GLENDO... WHEATLAND...CHUGWATER...GUERNSEY...ARLINGTON...ELK MOUNTAIN... CENTENNIAL...ALBANY...WOODS LANDING...LARAMIE...VEDAUWOO... BUFORD...PUMPKIN VINE...HORSE CREEK...HARRIMAN...WHITAKER... CHEYENNE 825 PM MDT FRI JUL 6 2012 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH SATURDAY AFTERNOON... THE FLASH FLOOD WATCH CONTINUES FOR * PORTIONS OF EAST CENTRAL WYOMING...SOUTH CENTRAL WYOMING AND SOUTHEAST WYOMING...INCLUDING THE FOLLOWING AREAS...IN EAST CENTRAL WYOMING...CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY...EAST PLATTE COUNTY AND NORTH LARAMIE RANGE. IN SOUTH CENTRAL WYOMING...NORTH SNOWY RANGE FOOTHILLS...SHIRLEY BASIN AND SNOWY RANGE. IN SOUTHEAST WYOMING...CENTRAL LARAMIE COUNTY...LARAMIE VALLEY...SOUTH LARAMIE RANGE AND SOUTH LARAMIE RANGE FOOTHILLS. * THROUGH SATURDAY AFTERNOON * SLOW MOVING SHOWERS AND THUNDERSTORMS WILL MOVE INTO THE AREA AFTER MIDNIGHT. THIS ACTIVITY WILL PERSIST THROUGH SATURDAY... AND WILL BE CAPABLE OF PRODUCING LOCALLY VERY HEAVY RAINFALL WHICH MAY LEAD TO FLASH FLOODING. * EXCESSIVE RAINFALL COULD RESULT IN RAPID RUNOFF...WHICH MAY CAUSE FLOODING OF URBANIZED AREAS AND SMALL CREEKS AND STREAMS. BURN SITES FROM ONGOING AND RECENT WILDFIRES MAY ALSO BE AT RISK FOR FLASH FLOODING AND POSSIBLE LANDSLIDES... ESPECIALLY ALONG THE STEEPER SLOPES OF THE SNOWY RANGE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && $$ HAHN
964 WGUS65 KCYS 070757 FFACYS URGENT - IMMEDIATE BROADCAST REQUESTED FLOOD WATCH NATIONAL WEATHER SERVICE CHEYENNE WY 157 AM MDT SAT JUL 7 2012 ...THUNDERSTORMS WITH VERY HEAVY RAINFALL WILL CONTINUE OVER THE AREA SATURDAY AND SUNDAY... .MONSOONAL MOISTURE WILL COMBINE WITH A SLOW MOVING UPPER LEVEL DISTURBANCE AND MOIST UPSLOPE FLOW TO BRING PERIODS OF HEAVY RAIN SHOWERS AND THUNDERSTORMS TO THE AREA. THIS ACTIVITY WILL PERSIST THROUGH SATURDAY AND SUNDAY. ALTHOUGH IT WILL NOT BE RAINING CONSTANTLY...RAIN SHOWERS AND THUNDERSTORMS WILL REDEVELOP QUICKLY EACH AFTERNOON AND EVENING...AND MAY PRODUCE VERY HEAVY RAINFALL ALONG WITH LOCALIZED FLASH FLOODING. THE GREATEST RISK FOR FLASH FLOODING WILL BE IN URBAN AREAS AND THOSE LOCATIONS IMPACTED BY RECENT WILDFIRES. NEZ054-WYZ119-072100- /O.EXB.KCYS.FF.A.0002.000000T0000Z-120709T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ KIMBALL-EAST LARAMIE COUNTY- INCLUDING THE CITIES OF...KIMBALL...BURNS...CARPENTER...ALBIN... PINE BLUFFS 157 AM MDT SAT JUL 7 2012 ...FLASH FLOOD WATCH IN EFFECT THROUGH SUNDAY AFTERNOON... THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS EXPANDED THE * FLASH FLOOD WATCH TO INCLUDE PORTIONS OF WESTERN NEBRASKA AND SOUTHEAST WYOMING...INCLUDING THE FOLLOWING AREAS...IN WESTERN NEBRASKA...KIMBALL. IN SOUTHEAST WYOMING...EAST LARAMIE COUNTY. * THROUGH SUNDAY AFTERNOON * SLOW MOVING SHOWERS AND THUNDERSTORMS WILL CONTINUE OVER THE AREA EARLY THIS MORNING. AFTER A LULL IN THE ACTIVITY...SHOWERS AND THUNDERSTORMS WILL REDEVELOP LATER ON SATURDAY...AND WILL BE CAPABLE OF PRODUCING LOCALLY VERY HEAVY RAINFALL WHICH MAY LEAD TO FLASH FLOODING. PERIODS OF HEAVY RAINFALL WILL CONTINUE INTO SUNDAY. * EXCESSIVE RAINFALL COULD RESULT IN RAPID RUNOFF...WHICH MAY CAUSE FLOODING OF URBANIZED AREAS AND SMALL CREEKS AND STREAMS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && $$ WYZ103-105>107-110-114>118-072100- /O.EXT.KCYS.FF.A.0002.000000T0000Z-120709T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ NORTH LARAMIE RANGE-SHIRLEY BASIN- CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY- EAST PLATTE COUNTY-NORTH SNOWY RANGE FOOTHILLS-SNOWY RANGE- LARAMIE VALLEY-SOUTH LARAMIE RANGE-SOUTH LARAMIE RANGE FOOTHILLS- CENTRAL LARAMIE COUNTY- INCLUDING THE CITIES OF...MEDICINE BOW...BORDEAUX...GLENDO... WHEATLAND...CHUGWATER...GUERNSEY...ARLINGTON...ELK MOUNTAIN... CENTENNIAL...ALBANY...WOODS LANDING...LARAMIE...VEDAUWOO... BUFORD...PUMPKIN VINE...HORSE CREEK...HARRIMAN...WHITAKER... CHEYENNE 157 AM MDT SAT JUL 7 2012 ...FLASH FLOOD WATCH NOW IN EFFECT THROUGH SUNDAY AFTERNOON... THE FLASH FLOOD WATCH IS NOW IN EFFECT FOR * PORTIONS OF EAST CENTRAL WYOMING...SOUTH CENTRAL WYOMING AND SOUTHEAST WYOMING...INCLUDING THE FOLLOWING AREAS...IN EAST CENTRAL WYOMING...CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY...EAST PLATTE COUNTY AND NORTH LARAMIE RANGE. IN SOUTH CENTRAL WYOMING...NORTH SNOWY RANGE FOOTHILLS...SHIRLEY BASIN AND SNOWY RANGE. IN SOUTHEAST WYOMING...CENTRAL LARAMIE COUNTY...LARAMIE VALLEY...SOUTH LARAMIE RANGE AND SOUTH LARAMIE RANGE FOOTHILLS. * THROUGH SUNDAY AFTERNOON * SLOW MOVING SHOWERS AND THUNDERSTORMS WILL CONTINUE OVER THE AREA EARLY THIS MORNING. AFTER A LULL IN THE ACTIVITY...SHOWERS AND THUNDERSTORMS WILL REDEVELOP LATER ON SATURDAY...AND WILL BE CAPABLE OF PRODUCING LOCALLY VERY HEAVY RAINFALL WHICH MAY LEAD TO FLASH FLOODING. PERIODS OF HEAVY RAINFALL WILL CONTINUE INTO SUNDAY. * EXCESSIVE RAINFALL COULD RESULT IN RAPID RUNOFF...WHICH MAY CAUSE FLOODING OF URBANIZED AREAS AND SMALL CREEKS AND STREAMS. BURN SITES FROM ONGOING AND RECENT WILDFIRES MAY ALSO BE AT RISK FOR FLASH FLOODING AND POSSIBLE LANDSLIDES... ESPECIALLY ALONG THE STEEPER SLOPES OF THE SNOWY RANGE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && $$ TT
001 WGUS65 KCYS 071537 FFACYS FLOOD WATCH NATIONAL WEATHER SERVICE CHEYENNE WY 937 AM MDT SAT JUL 7 2012 ...THUNDERSTORMS WITH VERY HEAVY RAINFALL WILL CONTINUE OVER PARTS OF SOUTHEAST WYOMING AND KIMBALL COUNTY NEBRASKA THIS AFTERNOON THROUGH SUNDAY... .ABUNDANT MOISTURE AND WEAK SURFACE UPSLOPE WIND FLOW WILL COMBINE TO PRODUCE WIDESPREAD SHOWERS AND THUNDERSTORMS THIS AFTERNOON AND TONIGHT AND AGAIN SUNDAY AFTERNOON. THE STORM MOTION WILL BE SLOW AND WILL ALLOW MANY OF THE SHOWERS AND STORMS TO PRODUCE HEAVY RAINFALL AND THE POTENTIAL FOR LOCALIZED FLASH FLOODING. THE GREATEST RISK FOR FLASH FLOODING WILL BE IN URBAN AREAS AND THOSE LOCATIONS IMPACTED BY RECENT WILDFIRES. NEZ054-WYZ103-105>107-110-114>119-080000- /O.CON.KCYS.FF.A.0002.000000T0000Z-120709T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ KIMBALL-NORTH LARAMIE RANGE-SHIRLEY BASIN- CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY- EAST PLATTE COUNTY-NORTH SNOWY RANGE FOOTHILLS-SNOWY RANGE- LARAMIE VALLEY-SOUTH LARAMIE RANGE-SOUTH LARAMIE RANGE FOOTHILLS- CENTRAL LARAMIE COUNTY-EAST LARAMIE COUNTY- INCLUDING THE CITIES OF...KIMBALL...MEDICINE BOW...BORDEAUX... GLENDO...WHEATLAND...CHUGWATER...GUERNSEY...ARLINGTON... ELK MOUNTAIN...CENTENNIAL...ALBANY...WOODS LANDING...LARAMIE... VEDAUWOO...BUFORD...PUMPKIN VINE...HORSE CREEK...HARRIMAN... WHITAKER...CHEYENNE...BURNS...CARPENTER...ALBIN...PINE BLUFFS 937 AM MDT SAT JUL 7 2012 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH SUNDAY AFTERNOON... THE FLASH FLOOD WATCH CONTINUES FOR * PORTIONS OF WESTERN NEBRASKA AND WYOMING...INCLUDING THE FOLLOWING AREAS...IN WESTERN NEBRASKA...KIMBALL. IN WYOMING... CENTRAL LARAMIE COUNTY...CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY...EAST LARAMIE COUNTY...EAST PLATTE COUNTY... LARAMIE VALLEY...NORTH LARAMIE RANGE...NORTH SNOWY RANGE FOOTHILLS...SHIRLEY BASIN...SNOWY RANGE...SOUTH LARAMIE RANGE AND SOUTH LARAMIE RANGE FOOTHILLS. * THROUGH SUNDAY AFTERNOON * SHOWERS AND THUNDERSTORMS WILL REDEVELOP LATER THIS AFTERNOON AND WILL BE CAPABLE OF PRODUCING LOCALLY HEAVY RAINFALL WHICH MAY LEAD TO FLASH FLOODING. PERIODS OF HEAVY RAINFALL WILL CONTINUE THROUGH EARLY TONIGHT AND AGAIN SUNDAY AFTERNOON. * EXCESSIVE RAINFALL COULD RESULT IN RAPID RUNOFF...WHICH MAY CAUSE FLOODING OF URBANIZED AREAS AND SMALL CREEKS AND STREAMS. BURN SITES FROM ONGOING AND RECENT WILDFIRES MAY ALSO BE AT RISK FOR FLASH FLOODING AND POSSIBLE LANDSLIDES... ESPECIALLY ALONG THE STEEPER SLOPES OF THE SNOWY RANGE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && $$ WEILAND
334 WGUS65 KCYS 072035 FFACYS URGENT - IMMEDIATE BROADCAST REQUESTED FLOOD WATCH NATIONAL WEATHER SERVICE CHEYENNE WY 235 PM MDT SAT JUL 7 2012 ...THUNDERSTORMS WITH VERY HEAVY RAINFALL WILL OCCUR OVER PARTS OF SOUTHEAST WYOMING AND THE SOUTHERN NEBRASKA PANHANDLE THROUGH SUNDAY EVENING... .ABUNDANT MOISTURE AND WEAK SURFACE UPSLOPE WIND FLOW WILL COMBINE TO PRODUCE WIDESPREAD SHOWERS AND THUNDERSTORMS THROUGH SUNDAY EVENING. THE STORM MOTION WILL BE SLOW AND WILL ALLOW MANY OF THE SHOWERS AND STORMS TO PRODUCE HEAVY RAINFALL AND THE POTENTIAL FOR LOCALIZED FLASH FLOODING. THE GREATEST RISK FOR FLASH FLOODING WILL BE IN URBAN AREAS AND THOSE LOCATIONS IMPACTED BY RECENT WILDFIRES. NEZ020-055-WYZ108-080600- /O.EXB.KCYS.FF.A.0002.000000T0000Z-120709T0300Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BANNER-CHEYENNE-GOSHEN COUNTY- INCLUDING THE CITIES OF...HARRISBURG...SIDNEY...TORRINGTON 235 PM MDT SAT JUL 7 2012 ...FLASH FLOOD WATCH IN EFFECT THROUGH SUNDAY EVENING... THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS EXPANDED THE * FLASH FLOOD WATCH TO INCLUDE PORTIONS OF WESTERN NEBRASKA AND EAST CENTRAL WYOMING...INCLUDING THE FOLLOWING AREAS...IN WESTERN NEBRASKA...BANNER AND CHEYENNE. IN EAST CENTRAL WYOMING...GOSHEN COUNTY. * THROUGH SUNDAY EVENING. * SHOWERS AND THUNDERSTORMS WILL CONTINUE TO DEVELOP THIS AFTERNOON OVER SOUTHEAST WYOMING AND THE WESTERN NEBRASKA PANHANDLE AND THEN CONTINUE THROUGH SUNDAY EVENING. THE STORMS WILL BE CAPABLE OF PRODUCING LOCALLY HEAVY RAINFALL WHICH MAY LEAD TO FLASH FLOODING. * EXCESSIVE RAINFALL COULD RESULT IN RAPID RUNOFF...WHICH MAY CAUSE FLOODING OF URBANIZED AREAS AND SMALL CREEKS AND STREAMS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && $$ NEZ054-WYZ103-105>107-110-114>119-080600- /O.EXT.KCYS.FF.A.0002.000000T0000Z-120709T0300Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ KIMBALL-NORTH LARAMIE RANGE-SHIRLEY BASIN- CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY- EAST PLATTE COUNTY-NORTH SNOWY RANGE FOOTHILLS-SNOWY RANGE- LARAMIE VALLEY-SOUTH LARAMIE RANGE-SOUTH LARAMIE RANGE FOOTHILLS- CENTRAL LARAMIE COUNTY-EAST LARAMIE COUNTY- INCLUDING THE CITIES OF...KIMBALL...MEDICINE BOW...BORDEAUX... GLENDO...WHEATLAND...CHUGWATER...GUERNSEY...ARLINGTON... ELK MOUNTAIN...CENTENNIAL...ALBANY...WOODS LANDING...LARAMIE... VEDAUWOO...BUFORD...PUMPKIN VINE...HORSE CREEK...HARRIMAN... WHITAKER...CHEYENNE...BURNS...CARPENTER...ALBIN...PINE BLUFFS 235 PM MDT SAT JUL 7 2012 ...FLASH FLOOD WATCH NOW IN EFFECT THROUGH SUNDAY EVENING... THE FLASH FLOOD WATCH IS NOW IN EFFECT FOR * PORTIONS OF WESTERN NEBRASKA AND WYOMING...INCLUDING THE FOLLOWING AREAS...IN WESTERN NEBRASKA...KIMBALL. IN WYOMING... CENTRAL LARAMIE COUNTY...CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY...EAST LARAMIE COUNTY...EAST PLATTE COUNTY... LARAMIE VALLEY...NORTH LARAMIE RANGE...NORTH SNOWY RANGE FOOTHILLS...SHIRLEY BASIN...SNOWY RANGE...SOUTH LARAMIE RANGE AND SOUTH LARAMIE RANGE FOOTHILLS. * THROUGH SUNDAY EVENING. * SHOWERS AND THUNDERSTORMS WILL CONTINUE TO DEVELOP THIS AFTERNOON OVER SOUTHEAST WYOMING AND THE WESTERN NEBRASKA PANHANDLE AND THEN CONTINUE THROUGH SUNDAY EVENING. THE STORMS WILL BE CAPABLE OF PRODUCING LOCALLY HEAVY RAINFALL WHICH MAY LEAD TO FLASH FLOODING. * EXCESSIVE RAINFALL COULD RESULT IN RAPID RUNOFF...WHICH MAY CAUSE FLOODING OF URBANIZED AREAS AND SMALL CREEKS AND STREAMS. BURN SITES FROM ONGOING AND RECENT WILDFIRES MAY ALSO BE AT RISK FOR FLASH FLOODING AND POSSIBLE LANDSLIDES...ESPECIALLY ALONG THE STEEPER SLOPES OF THE SNOWY RANGE AND SOUTHERN LARAMIE RANGE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && $$ WEILAND
495 WGUS65 KCYS 080314 FFACYS FLOOD WATCH NATIONAL WEATHER SERVICE CHEYENNE WY 914 PM MDT SAT JUL 7 2012 ...HEAVY SHOWERS AND EMBEDDED THUNDERSTORMS WITH VERY HEAVY RAINFALL WILL MOVE THROUGH THE AREA TONIGHT AND SUNDAY... .ABUNDANT MOISTURE AND WEAK SURFACE UPSLOPE WIND FLOW WILL COMBINE TO PRODUCE WIDESPREAD SHOWERS AND THUNDERSTORMS THROUGH SUNDAY EVENING. THE STORM MOTION WILL BE SLOW AND WILL ALLOW MANY OF THE SHOWERS AND STORMS TO PRODUCE HEAVY RAINFALL AND THE POTENTIAL FOR LOCALIZED FLASH FLOODING. THE GREATEST RISK FOR FLASH FLOODING WILL BE IN URBAN AREAS AND THOSE LOCATIONS IMPACTED BY RECENT WILDFIRES. WYZ103-105-110-080415- /O.CAN.KCYS.FF.A.0002.000000T0000Z-120709T0300Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ NORTH LARAMIE RANGE-SHIRLEY BASIN-NORTH SNOWY RANGE FOOTHILLS- INCLUDING THE CITIES OF...MEDICINE BOW...ARLINGTON...ELK MOUNTAIN 914 PM MDT SAT JUL 7 2012 ...FLASH FLOOD WATCH IS CANCELLED... THE FLASH FLOOD WATCH FOR PORTIONS OF EAST CENTRAL WYOMING AND SOUTH CENTRAL WYOMING HAS BEEN CANCELLED. ALTHOUGH LIGHT RAIN SHOWERS AND EMBEDDED THUNDERSTORMS WILL BE POSSIBLE OVERNIGHT AND AGAIN ON SUNDAY...NO LONGER ANTICIPATE FLASH FLOODING TO BE A THREAT. $$ NEZ020-054-055-WYZ106>108-114>119-081200- /O.CON.KCYS.FF.A.0002.000000T0000Z-120709T0300Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BANNER-KIMBALL-CHEYENNE- CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY- EAST PLATTE COUNTY-GOSHEN COUNTY-SNOWY RANGE-LARAMIE VALLEY- SOUTH LARAMIE RANGE-SOUTH LARAMIE RANGE FOOTHILLS- CENTRAL LARAMIE COUNTY-EAST LARAMIE COUNTY- INCLUDING THE CITIES OF...HARRISBURG...KIMBALL...SIDNEY... BORDEAUX...GLENDO...WHEATLAND...CHUGWATER...GUERNSEY... TORRINGTON...CENTENNIAL...ALBANY...WOODS LANDING...LARAMIE... VEDAUWOO...BUFORD...PUMPKIN VINE...HORSE CREEK...HARRIMAN... WHITAKER...CHEYENNE...BURNS...CARPENTER...ALBIN...PINE BLUFFS 914 PM MDT SAT JUL 7 2012 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH SUNDAY EVENING... THE FLASH FLOOD WATCH CONTINUES FOR * PORTIONS OF WESTERN NEBRASKA AND WYOMING...INCLUDING THE FOLLOWING AREAS...IN WESTERN NEBRASKA...BANNER...CHEYENNE AND KIMBALL. IN WYOMING...CENTRAL LARAMIE COUNTY...CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY...EAST LARAMIE COUNTY...EAST PLATTE COUNTY...GOSHEN COUNTY...LARAMIE VALLEY...SNOWY RANGE...SOUTH LARAMIE RANGE AND SOUTH LARAMIE RANGE FOOTHILLS. * THROUGH SUNDAY EVENING * SHOWERS AND THUNDERSTORMS WILL CONTINUE ACROSS SOUTHEAST WYOMING AND THE WESTERN NEBRASKA PANHANDLE OVERNIGHT WITH REDEVELOPMENT AGAIN ON SUNDAY AFTERNOON. THE STORMS WILL BE CAPABLE OF PRODUCING LOCALLY HEAVY RAINFALL WHICH MAY LEAD TO FLASH FLOODING. * EXCESSIVE RAINFALL COULD RESULT IN RAPID RUNOFF...WHICH MAY CAUSE FLOODING OF URBANIZED AREAS AND SMALL CREEKS AND STREAMS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && $$ HAHN
663 WGUS65 KCYS 080928 FFACYS FLOOD WATCH NATIONAL WEATHER SERVICE CHEYENNE WY 328 AM MDT SUN JUL 8 2012 ...HEAVY SHOWERS AND EMBEDDED THUNDERSTORMS WITH VERY HEAVY RAINFALL WILL MOVE THROUGH THE AREA TODAY AND TONIGHT... .ABUNDANT MOISTURE AND WEAK SURFACE UPSLOPE WIND FLOW WILL COMBINE TO PRODUCE WIDESPREAD SHOWERS AND THUNDERSTORMS THROUGH SUNDAY EVENING. THE STORM MOTION WILL BE SLOW AND WILL ALLOW MANY OF THE SHOWERS AND STORMS TO PRODUCE HEAVY RAINFALL AND THE POTENTIAL FOR LOCALIZED FLASH FLOODING. THE GREATEST RISK FOR FLASH FLOODING WILL BE IN URBAN AREAS AND THOSE LOCATIONS IMPACTED BY RECENT WILDFIRES. NEZ020-054-055-WYZ106>108-114>119-090000- /O.CON.KCYS.FF.A.0002.000000T0000Z-120709T0300Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BANNER-KIMBALL-CHEYENNE- CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY- EAST PLATTE COUNTY-GOSHEN COUNTY-SNOWY RANGE-LARAMIE VALLEY- SOUTH LARAMIE RANGE-SOUTH LARAMIE RANGE FOOTHILLS- CENTRAL LARAMIE COUNTY-EAST LARAMIE COUNTY- INCLUDING THE CITIES OF...HARRISBURG...KIMBALL...SIDNEY... BORDEAUX...GLENDO...WHEATLAND...CHUGWATER...GUERNSEY... TORRINGTON...CENTENNIAL...ALBANY...WOODS LANDING...LARAMIE... VEDAUWOO...BUFORD...PUMPKIN VINE...HORSE CREEK...HARRIMAN... WHITAKER...CHEYENNE...BURNS...CARPENTER...ALBIN...PINE BLUFFS 328 AM MDT SUN JUL 8 2012 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH THIS EVENING... THE FLASH FLOOD WATCH CONTINUES FOR * PORTIONS OF WESTERN NEBRASKA AND WYOMING...INCLUDING THE FOLLOWING AREAS...IN WESTERN NEBRASKA...BANNER...CHEYENNE AND KIMBALL. IN WYOMING...CENTRAL LARAMIE COUNTY...CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY...EAST LARAMIE COUNTY...EAST PLATTE COUNTY...GOSHEN COUNTY...LARAMIE VALLEY...SNOWY RANGE... SOUTH LARAMIE RANGE AND SOUTH LARAMIE RANGE FOOTHILLS. * THROUGH THIS EVENING * SHOWERS AND THUNDERSTORMS WILL CONTINUE ACROSS SOUTHEAST WYOMING AND THE WESTERN NEBRASKA PANHANDLE OVERNIGHT WITH REDEVELOPMENT AGAIN ON SUNDAY AFTERNOON. THE STORMS WILL BE CAPABLE OF PRODUCING LOCALLY HEAVY RAINFALL WHICH MAY LEAD TO FLASH FLOODING. * EXCESSIVE RAINFALL COULD RESULT IN RAPID RUNOFF...WHICH MAY CAUSE FLOODING OF URBANIZED AREAS AND SMALL CREEKS AND STREAMS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && $$
928 WGUS65 KCYS 081516 FFACYS FLOOD WATCH NATIONAL WEATHER SERVICE CHEYENNE WY 916 AM MDT SUN JUL 8 2012 ...SHOWERS AND EMBEDDED THUNDERSTORMS WITH HEAVY RAINFALL WILL AFFECT PARTS OF SOUTHEAST WYOMING AND THE SOUTHERN PANHANDLE THROUGH THIS EVENING... .ABUNDANT MOISTURE AND WEAK SURFACE UPSLOPE WIND FLOW WILL COMBINE TO PRODUCE WIDESPREAD SHOWERS AND THUNDERSTORMS THROUGH THIS EVENING. THE STORM MOTION WILL BE SLOW AND WILL ALLOW MANY OF THE SHOWERS AND STORMS TO PRODUCE HEAVY RAINFALL AND THE POTENTIAL FOR LOCALIZED FLASH FLOODING. THE GREATEST RISK FOR FLASH FLOODING WILL BE IN URBAN AREAS...THOSE LOCATIONS IMPACTED BY RECENT WILDFIRES AND AREAS WHERE RECENT SIGNIFICANT RAINFALL HAS OCCURRED. NEZ020-054-055-WYZ106>108-114>119-090015- /O.CON.KCYS.FF.A.0002.000000T0000Z-120709T0300Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BANNER-KIMBALL-CHEYENNE- CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY- EAST PLATTE COUNTY-GOSHEN COUNTY-SNOWY RANGE-LARAMIE VALLEY- SOUTH LARAMIE RANGE-SOUTH LARAMIE RANGE FOOTHILLS- CENTRAL LARAMIE COUNTY-EAST LARAMIE COUNTY- INCLUDING THE CITIES OF...HARRISBURG...KIMBALL...SIDNEY... BORDEAUX...GLENDO...WHEATLAND...CHUGWATER...GUERNSEY... TORRINGTON...CENTENNIAL...ALBANY...WOODS LANDING...LARAMIE... VEDAUWOO...BUFORD...PUMPKIN VINE...HORSE CREEK...HARRIMAN... WHITAKER...CHEYENNE...BURNS...CARPENTER...ALBIN...PINE BLUFFS 916 AM MDT SUN JUL 8 2012 ...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING... THE FLASH FLOOD WATCH CONTINUES FOR * PORTIONS OF WESTERN NEBRASKA AND WYOMING...INCLUDING THE FOLLOWING AREAS...IN WESTERN NEBRASKA...BANNER...CHEYENNE AND KIMBALL. IN WYOMING...CENTRAL LARAMIE COUNTY...CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY...EAST LARAMIE COUNTY...EAST PLATTE COUNTY...GOSHEN COUNTY...LARAMIE VALLEY...SNOWY RANGE... SOUTH LARAMIE RANGE AND SOUTH LARAMIE RANGE FOOTHILLS. * UNTIL 9 PM MDT THIS EVENING. * SHOWERS AND THUNDERSTORMS WILL REDEVELOP OVER THE AREA THIS AFTERNOON AND CONTINUE THROUGH THE EVENING. THE STORMS WILL BE CAPABLE OF PRODUCING LOCALLY HEAVY RAINFALL WHICH MAY LEAD TO FLASH FLOODING. * EXCESSIVE RAINFALL COULD RESULT IN RAPID RUNOFF...WHICH MAY CAUSE FLOODING OF URBANIZED AREAS AND SMALL CREEKS AND STREAMS. MUD AND ROCK SLIDES WILL ALSO BE POSSIBLE OVER THE SNOWY RANGE AND SOUTHERN LARAMIE RANGE...ESPECIALLY OVER THE SQUIRREL CREEK FIRE AREA SOUTHWEST OF LARAMIE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && $$ WEILAND
369 WGUS65 KCYS 082029 FFACYS FLOOD WATCH NATIONAL WEATHER SERVICE CHEYENNE WY 229 PM MDT SUN JUL 8 2012 ...SHOWERS AND THUNDERSTORMS...SOME PRODUCING HEAVY RAINFALL WILL AFFECT PARTS OF SOUTHEAST WYOMING AND THE SOUTHERN NEBRASKA PANHANDLE THROUGH THIS EVENING... .ABUNDANT MOISTURE AND WEAK SURFACE UPSLOPE WIND FLOW WILL COMBINE TO PRODUCE SHOWERS AND THUNDERSTORMS THROUGH THIS EVENING OVER THE REGION. THE STORM MOTION WILL BE SLOW AND WILL ALLOW MANY OF THE SHOWERS AND STORMS TO PRODUCE HEAVY RAINFALL AND THE POTENTIAL FOR LOCALIZED FLASH FLOODING. AT THIS TIME...RAINFALL RATES AND AMOUNTS ARE EXPECTED TO BE LOWER THAN THOSE OF SATURDAY. THE GREATEST RISK FOR FLASH FLOODING WILL BE IN URBAN AREAS... THOSE LOCATIONS IMPACTED BY RECENT WILDFIRES AND AREAS WHERE RECENT SIGNIFICANT RAINFALL HAS OCCURRED. NEZ020-054-055-WYZ106>108-114>119-090300- /O.CON.KCYS.FF.A.0002.000000T0000Z-120709T0300Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BANNER-KIMBALL-CHEYENNE- CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY- EAST PLATTE COUNTY-GOSHEN COUNTY-SNOWY RANGE-LARAMIE VALLEY- SOUTH LARAMIE RANGE-SOUTH LARAMIE RANGE FOOTHILLS- CENTRAL LARAMIE COUNTY-EAST LARAMIE COUNTY- INCLUDING THE CITIES OF...HARRISBURG...KIMBALL...SIDNEY... BORDEAUX...GLENDO...WHEATLAND...CHUGWATER...GUERNSEY... TORRINGTON...CENTENNIAL...ALBANY...WOODS LANDING...LARAMIE... VEDAUWOO...BUFORD...PUMPKIN VINE...HORSE CREEK...HARRIMAN... WHITAKER...CHEYENNE...BURNS...CARPENTER...ALBIN...PINE BLUFFS 229 PM MDT SUN JUL 8 2012 ...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING... THE FLASH FLOOD WATCH CONTINUES FOR * PORTIONS OF WESTERN NEBRASKA AND WYOMING...INCLUDING THE FOLLOWING AREAS...IN WESTERN NEBRASKA...BANNER...CHEYENNE AND KIMBALL. IN WYOMING...CENTRAL LARAMIE COUNTY...CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY...EAST LARAMIE COUNTY...EAST PLATTE COUNTY...GOSHEN COUNTY...LARAMIE VALLEY...SNOWY RANGE... SOUTH LARAMIE RANGE AND SOUTH LARAMIE RANGE FOOTHILLS. * UNTIL 9 PM MDT THIS EVENING. * SHOWERS AND THUNDERSTORMS WILL CONTINUE OVER THE AREA THROUGH THIS EVENING. THE STORMS WILL BE CAPABLE OF PRODUCING LOCALLY HEAVY RAINFALL WHICH MAY LEAD TO FLASH FLOODING. * EXCESSIVE RAINFALL COULD RESULT IN RAPID RUNOFF...WHICH MAY CAUSE FLOODING OF URBANIZED AREAS AND SMALL CREEKS AND STREAMS. MUD AND ROCK SLIDES WILL ALSO BE POSSIBLE OVER THE SNOWY RANGE AND SOUTHERN LARAMIE RANGE...ESPECIALLY OVER THE SQUIRREL CREEK FIRE AREA SOUTHWEST OF LARAMIE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && $$ WEILAND
279 WGUS65 KCYS 082125 FFACYS FLOOD WATCH NATIONAL WEATHER SERVICE CHEYENNE WY 325 PM MDT SUN JUL 8 2012 ...FLASH FLOOD WATCH CANCELLED FOR PORTIONS OF SOUTHEAST WYOMING AND THE SOUTHERN NEBRASKA PANHANDLE... .SHOWERS AND THUNDERSTORMS ARE STILL EXPECTED TO AFFECT MUCH OF THE REGION SOUTH OF A LARAMIE TO WHEATLAND TO BRIDGEPORT LINE THROUGH THIS EVENING. HOWEVER...RAINFALL RATES AND AMOUNTS NOW LOOK TO BE LESS THAN EXPECTED THROUGH THAT TIME. WITH LESS ADDITIONAL RAINFALL...THE RISK OF FLASH FLOODING WILL BE REDUCED AND SO THE FLASH FLOOD WATCH HAS BEEN CANCELLED. NEZ020-054-055-WYZ106>108-114>119-082230- /O.CAN.KCYS.FF.A.0002.000000T0000Z-120709T0300Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BANNER-KIMBALL-CHEYENNE- CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY- EAST PLATTE COUNTY-GOSHEN COUNTY-SNOWY RANGE-LARAMIE VALLEY- SOUTH LARAMIE RANGE-SOUTH LARAMIE RANGE FOOTHILLS- CENTRAL LARAMIE COUNTY-EAST LARAMIE COUNTY- INCLUDING THE CITIES OF...HARRISBURG...KIMBALL...SIDNEY... BORDEAUX...GLENDO...WHEATLAND...CHUGWATER...GUERNSEY... TORRINGTON...CENTENNIAL...ALBANY...WOODS LANDING...LARAMIE... VEDAUWOO...BUFORD...PUMPKIN VINE...HORSE CREEK...HARRIMAN... WHITAKER...CHEYENNE...BURNS...CARPENTER...ALBIN...PINE BLUFFS 325 PM MDT SUN JUL 8 2012 ...FLASH FLOOD WATCH IS CANCELLED... THE FLASH FLOOD WATCH FOR PORTIONS OF WESTERN NEBRASKA AND WYOMING HAS BEEN CANCELLED. THE SHOWERS AND STORMS THAT DEVELOP ARE NOT EXPECTED TO BE AS WIDESPREAD AND WILL NOT PRODUCE AS MUCH RAINFALL AS EARLIER THOUGHT. THAT WILL MINIMIZE THE RISK OF FLASH FLOODING THROUGH THE EVENING. $$ WEILAND
What forecasters said that day
The local office's own words before this flash flood watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Cheyenne, WY wrote its last area forecast discussion before this flash flood watch went out at Jul 6, 12:24 PM MDT, 1 hour 13 minutes earlier.
Area forecast discussion, Jul 6, 12:24 PM MDT, 1 hour 13 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE CHEYENNE WY 1224 PM MDT FRI JUL 6 2012 .AVIATION...18Z TAFS. SCATTERED TO NUMEROUS THUNDERSTORMS DEVELOPING AFTER 20Z...ROUGHLY SOUTH OF A RAWLINS TO SCOTTSBLUFF LINE AND MOSTLY ENDING BY 06Z. THUNDERSTORMS PRODUCING LOCALIZED MVFR AND TURBULENCE...SOME SEVERE. AFTER 05Z...AREAS OF CLOUDS AND FOG DEVELOPING EAST OF A DOUGLAS TO LARAMIE LINE PRODUCING WIDESPREAD IFR THROUGH 15Z...THEN CEILINGS AND VISIBILITIES IMPROVING AFTER 15Z. RUBIN && .PREV DISCUSSION... /ISSUED 1130 AM MDT FRI JUL 6 2012/ UPDATE... WATER VAPOR SATELLITE IMAGERY CONTINUES TO INDICATE A NARROW PLUME OF MID-LEVEL MOISTURE EXTENDING FROM SOUTHWEST TO NORTHEAST ACROSS MUCH OF WESTERN CO AND EASTERN WY. THIS IS OCCURRING ON THE WESTERN EDGE OF BROAD UPPER-LEVEL RIDGING OVER THE CENTRAL/EASTERN US. IT STILL APPEARS SEVERAL WEAK DISTURBANCES WILL TRAVERSE THE FLOW THIS AFTN AND EVE...WITH THE MOST SIGNIFICANT WAVE AND ASSOCIATED FORCING FOR ASCENT ARRIVING BY LATE EVE. SURFACE OBSERVATIONS INDICATE THE BEST LOW-LEVEL MOISTURE IS CURRENTLY IN PLACE OVER SD AND THE FAR NORTHERN NE PANHANDLE. THIS MOISTURE SHOULD ADVECT INTO AREAS ALONG AND EAST OF THE LARAMIE RANGE THIS EVE AS CYCLOGENESIS OVER EASTERN CO ALLOWS LOW-LEVEL FLOW TO SHIFT TO A NORTHEASTERLY DIRECTION. THE RESULTING UPSLOPE FLOW AND CONVERGENCE ALONG THE FOOTHILLS SHOULD BE SUFFICIENT FOR THUNDERSTORM GENERATION BY MID AFTERNOON...WITH ACTIVITY GRADUALLY INCREASING IN COVERAGE AND INTENSITY THROUGH THE REMAINDER OF THE DAY. TALL AND SKINNY CAPE PROFILES ALONG WITH HIGH K-INDEX VALUES OF 40-42C AND PWAT VALUES NEAR 1.5 INCHES SUGGEST THUNDERSTORMS WILL BE VERY EFFICIENT RAINFALL PRODUCERS. FLASH FLOODING IS A SIGNIFICANT THREAT WITH H7-H3 FLOW SUPPORTING ONLY AROUND 10 KT STORM MOTIONS...AND A FLASH FLOOD WATCH MAY BE REQUIRED FOR TONIGHT THROUGH EARLY SAT. HAMMER AVIATION...12Z TAFS VFR CONDITIONS THIS MORNING WITH RADAR INDICATING NO ECHOES ACROSS SOUTHEAST WYOMING AND NEBRASKA PANHANDLE. EXPECT CONVECTION TO BEGIN SHORTLY AFTER 18Z AND IT COULD CONTINUE WELL INTO THE OVERNIGHT HOURS. TSTMS WITH HEAVY RAINFALL REDUCING VISIBILITIES UNDER 3 MILES LOOK TO BE A GOOD BET AT KLAR...KCYS AND POSSIBLY KSNY THIS AFTERNOON. WITH ABUNDANT LOW LEVEL MOISTURE AND UPSLOPING NORTHEAST WINDS...EXPECT IFR/LIFR CONDITIONS TONIGHT FOR OUR PANHANDLE AIRPORTS AS WELL AS KCYS. PREV DISCUSSION... /ISSUED 303 AM MDT FRI JUL 6 2012/ SHORT TERM...TODAY THROUGH SUNDAY...CURRENT IR SATELLITE LOOP SHOWS PARTLY CLOUDY SKIES OVER THE AREA WITH THE THUNDERSTORM COMPLEX...WHICH MOVED OVER SOUTHEAST WYOMING AND NORTHWESTERN NEBRASKA LAST NIGHT...PUSHING ACROSS THE DAKOTAS EARLY THIS MORNING. DECREASING CLOUDINESS AND PLENTY OF LLVL MOISTURE WILL SET THE STAGE FOR ANOTHER RAINY AND STORMY DAY ACROSS THE FORECAST AREA ON FRIDAY. A STATIONARY FRONT ACROSS CENTRAL WYOMING WILL SLOWLY MOVE SOUTHWARD TODAY. THIS FRONT WILL PROVIDE GOOD LLVL CONVERGENCE AS SUBTROPICAL MOISTURE AND LLVL INSTABILITY WILL REMAIN OVER THE AREA. ALL MODELS SHOW THE BEST CHANCE OF WIDESPREAD RAIN SHOWERS AND TSTORMS ALONG AND AHEAD OF THIS FRONT AS IT DRIFTS SOUTHWARD TOWARDS THE COLORADO BORDER TODAY. ALTHOUGH THE SEVERE TSTORM THREAT WILL BE SOMEWHAT LOWER TODAY...BELIEVE THE HEAVY RAINFALL THREAT WILL REMAIN AND POTENTIALLY BE MORE SIGNIFICANT WITH MODEL SOUNDINGS SHOWING PW/S INCREASING TO 1.2 TO 1.5 INCHES TODAY AND TONIGHT. NOT MUCH OF A CAP TODAY...SO EXPECT ACTIVITY TO DEVELOP A BIT EARLIER COMPARED TO YESTERDAY. THERE IS STILL A THREAT OF STRONG TO SEVERE STORMS...MAINLY EAST OF THE LARAMIE RANGE INTO SOUTHWEST NEBRASKA. WITH SLOW STORM MOTION...FLASH FLOODING IS A CONCERN. KEPT POP BETWEEN 50 TO 80 PERCENT ACROSS MOST OF SOUTHEAST WYOMING AND INTO SOUTHWEST NEBRASKA WHICH WILL SEE A BETTER CHANCE AT WIDESPREAD RAINFALL COMPARED TO YESTERDAY. TEMPERATURES ARE EXPECTED TO BE 5 TO 10 DEGREES COOLER TODAY DUE TO THE PROXIMITY OF THE FRONT ALONG WITH AFTERNOON CLOUD COVER AND PRECIPITATION...WITH HIGHS IN THE MID 70S TO MID 80S ACROSS SOUTHEAST WYOMING AND 80S TO LOW 90S ACROSS WESTERN NEBRASKA. FORECAST THEN BECOMES TRICKY INTO THE WEEKEND WITH MODELS SHOWING THE SURFACE FRONT STALLING NEAR THE COLORADO BORDER AS AN UPPER LEVEL DISTURBANCE FORMS AND REMAINS STATIONARY NEAR THE FRONT LATE TONIGHT AND INTO SATURDAY. MODELS INDICATE THIS FEATURE WILL HARDLY MOVE AT ALL THROUGH SATURDAY NIGHT...AND STILL NEAR THE WYOMING/COLORADO BORDER INTO SUNDAY MORNING. LLVL UPSLOPE FLOW AND AMPLE MOISTURE ALONG THE FRONT RANGE MAY RESULT IN A PROLONGED PERIOD OF RAINFALL. MODELS ARE SHOWING 24 TO 48 HOUR QPF VALUES BETWEEN 1 TO 3 INCHES...MAINLY ALONG AND EAST OF THE LARAMIE RANGE INTO WESTERN NEBRASKA. MODELS DO DIFFER ON THE POSITION OF THE FRONT AND UPPER LEVEL DISTURBANCE...WITH THE ECMWF AND GEM FURTHER NORTH OVER SOUTHEAST WYOMING WHILE THE GFS POSITION IS OVER NORTHEAST COLORADO. EXPECT RAINFALL TO BECOME MORE WIDESPREAD AND STEADY INSTEAD OF HEAVY TSTORM ACTIVITY AS COOLER AIR PUSHES INTO THE AREA THIS WEEKEND. BUT PERIODS OF LOCALLY HEAVY SHOWERS CAN NOT BE RULED OUT DUE TO VERY UNSTABLE LOW TO MIDLEVELS. INCREASED POP ALONG AND SOUTH OF THE NORTH PLATTE RIVER VALLEY THROUGH SUNDAY. TEMPERATURES WILL BE PLEASANT THIS WEEKEND WITH HIGHS IN THE 70S TO LOW 80S...WARMEST FURTHER TO THE NORTH AROUND DOUGLAS AND CHADRON. A FEW LOCATIONS MAY NOT EVEN REACH 70 IF SHOWERS AND TSTORMS DEVELOP TOO QUICK IN THE EARLY AFTERNOON ON SATURDAY. OTHERWISE...PATCHY FOG IS POSSIBLE TONIGHT AS THE FRONT STALLS NEAR THE COLORADO BORDER. LONG TERM...SUNDAY NIGHT THROUGH FRIDAY... GOING TO BE DEALING WITH AFTERNOON SHOWERS AND THUNDERSTORMS THROUGH THE EXTENDED. UPPER RIDGE AXIS WILL BE OFF TO OUR WEST SUNDAY NIGHT WITH LOW LEVEL UPSLOPING WINDS IN THE PANHANDLE INTO THE EASTERN SLOPES OF THE LARAMIE RANGE. LOW LEVEL MOISTURE WILL BE THERE FOR CONVECTION. SOME DIFFERENCES SEEN IN MODEL SOLUTIONS. GFS DRIER AND FURTHER SOUTH WITH PRECIP OVER COLORADO AND NOT MUCH HERE IN WYOMING. NEW ECMWF HITS NORTHEASTERN COLORADO AND SOUTHEASTERN WYOMING PRETTY GOOD WITH A WIDESPREAD .25 INCH BULLSEYE. CONTINUED FAIRLY HIGH POPS ALONG THE INTERSTATE 80 CORRIDOR FROM LARAMIE TO SIDNEY SUNDAY NIGHT INTO MONDAY. WE REALLY DO NOT GET OUT OF THE LOW LEVEL UPSLOPING WINDS UNTIL MAYBE TUESDAY NIGHT/WEDNESDAY WHEN UPPER LEVEL RIDGE AXIS MOVES OVER THE CWA. KEPT AFTERNOON POP CHANCES IN ACROSS SOUTHERN WYOMING THROUGH MONDAY EVENING WHEN BOTH MODELS SHIFT QPF FURTHER SOUTH. NEAR NORMAL TEMPERATURES CAN BE EXPECTED AS 700MB TEMPERATURES STAY RIGHT AROUND +12C THROUGH TUESDAY. WE BEGIN TO SEE 700MB TEMPERATURES RISING TUESDAY ON AS RIDGE AXIS SHIFTS OVER THE CWA. 500MB HEIGHTS SHOW A SHARP RISE AS RIDGE BUILDS OVER THE AREA. BY THURSDAY THE GFS HAS A 593DM 500MB HIGH RIGHT OVER TOP OF US WITH 700MB TEMPERATURES AROUND +16C. SHOULD SEE AFTERNOON HIGHS CLIMB ABOVE 90 BY WEDNESDAY AND PERSIST INTO FRIDAY. ECMWF EVEN WARMER WITH +20C OVER CARBON COUNTY BY FRIDAY. IF THIS CONTINUES...WILL PROBABLY NEED TO START BOOSTING HIGHS FOR THE LATTER PART OF THE WEEK. FIRE WEATHER...FIRE WEATHER CONCERNS WILL BE LOW THROUGH THE WEEKEND AND INTO NEXT WEEK AS SUBTROPICAL MOISTURE CONTINUES TO MOVE NORTHWARD ALONG THE ROCKIES AND HIGH PLAINS. THIS WILL RESULT IN A HIGH PROBABILITY OF RAINFALL AND THUNDERSTORMS NEARLY EVERY DAY THROUGH MONDAY OF NEXT WEEK...WITH A LIKELIHOOD OF WIDESPREAD WETTING RAINS. LIGHT WINDS AND HIGH HUMIDITIES ARE ALSO EXPECTED THROUGH NEXT WEEK. HYDROLOGY...A LARGE AREA OF MODERATE TO HEAVY RAINFALL PUSHED ACROSS THE SOUTHEAST WYOMING AND NORTHWEST NEBRASKA ON THURSDAY PRODUCING SOME FLASH FLOODING...MAINLY ACROSS RECENTLY BURNED AREAS. SUBTROPICAL MOISTURE AND UPSLOPE WINDS WILL CONTINUE TO BRING WIDESPREAD RAINFALL TO THE REGION FRIDAY AND THROUGH THE WEEKEND. WITH SLOW STORM MOTION...THERE IS A SLIGHT CHANCE OF FLASH FLOODING THIS AFTERNOON AND THIS EVENING...ESPECIALLY ALONG THE I80 CORRIDOR FROM THE MOUNTAINS EASTWARD TO WESTERN NEBRASKA. && .CYS WATCHES/WARNINGS/ADVISORIES... WY...NONE. NE...NONE. && AVIATION UPDATE...RUBIN UPDATE...HAMMER SHORT TERM/FIRE WEATHER...TJT LONG TERM/AVIATION...CLAYCOMB
Hazardous weather outlook, Jul 6, 11:13 AM MDT, 2 hours 24 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE CHEYENNE WY 1113 AM MDT FRI JUL 6 2012 WYZ101>119-071715- CONVERSE COUNTY LOWER ELEVATIONS-NIOBRARA COUNTY- NORTH LARAMIE RANGE-FERRIS/SEMINOE/SHIRLEY MOUNTAINS- SHIRLEY BASIN-CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY- EAST PLATTE COUNTY-GOSHEN COUNTY-CENTRAL CARBON COUNTY- NORTH SNOWY RANGE FOOTHILLS-SOUTHWEST CARBON COUNTY- SIERRA MADRE RANGE-UPPER NORTH PLATTE RIVER BASIN-SNOWY RANGE- LARAMIE VALLEY-SOUTH LARAMIE RANGE-SOUTH LARAMIE RANGE FOOTHILLS- CENTRAL LARAMIE COUNTY-EAST LARAMIE COUNTY- 1113 AM MDT FRI JUL 6 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL WYOMING... SOUTH CENTRAL WYOMING AND SOUTHEAST WYOMING. .DAY ONE...THIS AFTERNOON AND TONIGHT SHOWERS AND THUNDERSTORMS WILL DEVELOP EARLY THIS AFTERNOON. SMALL HAIL...GUSTY WINDS...AND VERY HEAVY RAINFALL WILL BE POSSIBLE WITH THIS ACTIVITY THROUGH TONIGHT. THERE IS ALSO A RISK FOR LOCALIZED FLASH FLOODING IN THE VICINITY OF THE STRONGEST THUNDERSTORMS. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY SUBTROPICAL MOISTURE WILL REMAIN OVER THE AREA THROUGH THE WEEKEND...RESULTING IN ADDITIONAL HEAVY RAINFALL AND THE POTENTIAL FOR FLASH FLOODING. SOME DRIER AIR WILL PUSH INTO THE REGION BY THE MIDDLE OF NEXT WEEK...LIMITING SHOWER AND THUNDERSTORM ACTIVITY TO MAINLY THE MOUNTAINS ON WEDNESDAY AND THURSDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY AND TONIGHT. && THIS PRODUCT...ALONG WITH OTHER WEATHER...HYDROLOGIC...AND CLIMATE INFORMATION IS AVAILABLE ON THE WEB AT... HTTP://WEATHER.GOV/CHEYENNE NEZ002-003-019>021-054-055-095-096-071715- DAWES-BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE- NORTH SIOUX-SOUTH SIOUX- 1113 AM MDT FRI JUL 6 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE WESTERN NEBRASKA PANHANDLE. .DAY ONE...THIS AFTERNOON AND TONIGHT SHOWERS AND THUNDERSTORMS WILL DEVELOP THIS AFTERNOON AND EVENING. SMALL HAIL...GUSTY WINDS...AND VERY HEAVY RAINFALL WILL BE POSSIBLE WITH THIS ACTIVITY THROUGH TONIGHT. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY SUBTROPICAL MOISTURE WILL REMAIN OVER THE AREA THROUGH THE WEEKEND...RESULTING IN ADDITIONAL HEAVY RAINFALL AND THE POTENTIAL FOR FLASH FLOODING. SOME DRIER AIR WILL PUSH INTO THE REGION BY THE MIDDLE OF NEXT WEEK...LIMITING SHOWER AND THUNDERSTORM ACTIVITY TO MAINLY THE MOUNTAINS OF WYOMING AND COLORADO. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY AND TONIGHT. && THIS PRODUCT...ALONG WITH OTHER WEATHER...HYDROLOGIC...AND CLIMATE INFORMATION IS AVAILABLE ON THE WEB AT... HTTP://WEATHER.GOV/CHEYENNE CLH
The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 5, 6:10 PM MDT | Severe Thunderstorm Warning | CYS | Converse, Niobrara, Platte | 50 min |
| Jul 5, 6:35 PM MDT | Special Weather Statement | CYS | Laramie | 40 min |
| Jul 5, 6:44 PM MDT | Special Weather Statement | CYS | Albany | 61 min |
| Jul 5, 7:16 PM MDT | Special Weather Statement | CYS | Niobrara | 29 min |
| Jul 5, 7:46 PM MDT | Special Weather Statement | CYS | 29 min | |
| Jul 5, 8:07 PM MDT | Severe Thunderstorm Warning | CYS | Goshen | 39 min |
| Jul 5, 8:25 PM MDT | Special Weather Statement | CYS | Platte | 65 min |
| Jul 5, 8:44 PM MDT | Severe Thunderstorm Warning | CYS | Goshen, Niobrara | 46 min |
| Jul 5, 9:43 PM MDT | Special Weather Statement | CYS | Sioux | 32 min |
Nearby
Flash Flood Watches in Wyoming, 2012Flash Flood Watches in Nebraska, 2012Every flash flood watch 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.