Alert archive / Wyoming / Special Weather Statements in 2016
Special Weather Statement, NWS Cheyenne, WY
NWS Cheyenne, WY issued this special weather statement at Jul 18, 2016, 2:49 PM MDT for Goshen County, Wyoming. It was in force for 41 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jul 18, 2016, 2:49 PM MDT (20:49 UTC)
- Expired
- Jul 18, 2016, 3:30 PM MDT
- In force
- 41 min
- Issued by
- NWS Cheyenne, WY
County Goshen County, WY
The radar
The Cheyenne radar (KCYS), 128 km from the middle of the area, began a volume at 20:50 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
Rapid City, SD (KRAP), launched 12:00Z, 8.8 hours before the alert went out and 234 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
- 330 J/kg
- Mixed-layer CIN
- -353 J/kg
- Mixed-layer LCL
- 2100 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 20 m²/s²
- 0-3 km storm-relative helicity
- 184 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.2
The text
As transmitted.
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</html>What forecasters said that day
The local office's own words before this special weather statement 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 special weather statement went out at Jul 18, 11:19 AM MDT, 3 hours 30 minutes earlier.
Area forecast discussion, Jul 18, 11:19 AM MDT, 3 hours 30 minutes before
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<head>
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<title>Service Notice</title>
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</head>
<body>
<main class="wrap">
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<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
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</html>Hazardous weather outlook, Jul 18, 4:19 AM MDT, 10 hours 30 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE CHEYENNE WY 419 AM MDT MON JUL 18 2016 NEZ002-003-019>021-054-055-095-096-WYZ101>103-106>108-117>119- 191030- DAWES-BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE- NORTH SIOUX-SOUTH SIOUX-CONVERSE COUNTY LOWER ELEVATIONS- NIOBRARA COUNTY-NORTH LARAMIE RANGE- CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY- EAST PLATTE COUNTY-GOSHEN COUNTY-SOUTH LARAMIE RANGE FOOTHILLS- CENTRAL LARAMIE COUNTY-EAST LARAMIE COUNTY- 419 AM MDT MON JUL 18 2016 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF PANHANDLE NEBRASKA...EAST CENTRAL WYOMING AND SOUTHEAST WYOMING. .DAY ONE...TODAY AND TONIGHT SCATTERED AFTERNOON THUNDERSTORMS ARE EXPECTED TO DEVELOP ONCE AGAIN MAINLY ALONG AND EAST OF A LUSK TO LARAMIE LINE. SOME OF THESE STORMS ARE EXPECTED COULD BECOME SEVERE WITH DAMAGING WINDS AND LARGE HAIL. HOWEVER, THE BIGGER THREAT THIS AFTERNOON AND EVENING COULD BE THE POTENTIAL FOR TORRENTIAL RAINFALL ESPECIALLY IN THE SOUTHERN PANHANDLE WHERE THEY MAY RECEIVE SOME ISOLATED FLASH FLOODING. THE STORMS WILL GENERALLY MOVE NORTHEAST AT 10 TO 20 MPH, BUT SOME OF THESE STORMS IN THE SOUTHERN PANHANDLE MAY HAVE SLOWER MOVEMENT WITH A FEW OF THE STORMS TRAINING OVER THE SAME LOCATION. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY MORE AFTERNOON THUNDERSTORMS ARE POSSIBLE THROUGH THURSDAY WITH THE BEST CHANCE ALONG THE I-80 CORRIDOR. SOME OF THESE STORMS MAY BECOME STRONG, BUT THE SEVERE CHANCES LOOK TO BE RATHER LIMITED AT THIS TIME. THE NEXT BEST CHANCE OF THUNDERSTORMS IS EXPECTED TO OCCUR LATE THIS WEEKEND. .SPOTTER INFORMATION STATEMENT... STORM SPOTTER ACTIVATION MAY BE POSSIBLE THIS AFTERNOON MAINLY ALONG AND EAST OF A LARAMIE TO LUSK LINE. WYZ104-105-109>116-191030- FERRIS/SEMINOE/SHIRLEY MOUNTAINS-SHIRLEY BASIN- 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- 419 AM MDT MON JUL 18 2016 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH CENTRAL WYOMING AND SOUTHEAST WYOMING. .DAY ONE...TODAY AND TONIGHT A FEW THUNDERSTORMS MAY DEVELOP MAINLY ALONG THE SNOWY AND SIERRA MADRE MOUNTAIN RANGES THIS AFTERNOON. A FEW OF THESE STORMS MAY BECOME STRONG WITH SMALL HAIL AND GUSTY WINDS. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY THE CHANCE OF THUNDERSTORMS WILL CONTINUE THROUGH THE REMAINDER OF THE WEEK. SOME OF THESE STORMS MAY CONTAIN SMALL HAIL AND GUSTY WINDS. .SPOTTER INFORMATION STATEMENT... SKYWARN SPOTTER ACTIVATION IS NOT ANTICIPATED THIS WEEK.
In the hours before
Special weather statement, Jul 18, 1:29 PM MDT, 1 hour 20 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 129 PM MDT MON JUL 18 2016 WYZ106>108-182015- GOSHEN COUNTY WY-EAST PLATTE COUNTY WY- CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY WY- 129 PM MDT MON JUL 18 2016 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN GOSHEN AND SOUTHEASTERN PLATTE COUNTIES UNTIL 215 PM MDT... AT 129 PM MDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM OVER SLATER...OR 17 MILES SOUTHEAST OF WHEATLAND...MOVING NORTHEAST AT 20 MPH. NICKEL SIZE HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH THIS STORM. LOCATIONS IMPACTED INCLUDE... LINGLE...CHUGWATER...YODER...VETERAN AND SLATER. THIS INCLUDES INTERSTATE 25 IN WYOMING BETWEEN MILE MARKERS 53 AND 69. PRECAUTIONARY/PREPAREDNESS ACTIONS... TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS. && LAT...LON 4173 10484 4191 10495 4220 10426 4183 10424 TIME...MOT...LOC 1929Z 244DEG 19KT 4186 10475 HAHN
Special weather statement, Jul 18, 2:49 PM MDT, 0 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 249 PM MDT MON JUL 18 2016 NEZ096-WYZ108-182130- SOUTH SIOUX NE-GOSHEN COUNTY WY- 249 PM MDT MON JUL 18 2016 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN SIOUX AND EAST CENTRAL GOSHEN COUNTIES UNTIL 330 PM MDT... AT 249 PM MDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR TORRINGTON...MOVING NORTHEAST AT 30 MPH. HALF INCH HAIL AND WIND GUSTS OF 50 TO 55 MPH WILL BE POSSIBLE WITH THIS STORM. THIS STORM WILL REMAIN OVER MAINLY RURAL AREAS OF SOUTHWESTERN SIOUX AND EAST CENTRAL GOSHEN COUNTIES. LAT...LON 4211 10377 4199 10427 4211 10436 4242 10403 TIME...MOT...LOC 2049Z 234DEG 26KT 4209 10424 RUBIN
The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 17, 6:18 PM MDT | Special Weather Statement | CYS | Niobrara | 57 min |
| Jul 17, 6:25 PM MDT | Severe Thunderstorm Warning | CYS | Converse, Niobrara | 65 min |
| Jul 17, 7:44 PM MDT | Special Weather Statement | CYS | Niobrara | 46 min |
| Jul 17, 10:22 PM MDT | Special Weather Statement | CYS | Laramie | 38 min |
| Jul 18, 1:29 PM MDT | Special Weather Statement | CYS | Goshen | 46 min |
| Jul 18, 3:07 PM MDT | Special Weather Statement | CYS | Niobrara | 38 min |
| Jul 18, 3:43 PM MDT | Special Weather Statement | CYS | Niobrara | 32 min |
| Jul 18, 3:53 PM MDT | Special Weather Statement | CYS | Niobrara | 67 min |
| Jul 18, 3:58 PM MDT | Severe Thunderstorm Warning | CYS | Niobrara | 43 min |
| Jul 18, 5:48 PM MDT | Areal Flood Advisory | CYS | Laramie | 3 hr |
| Jul 17, 10:26 PM MDT | Special Weather Statement | CYS | Scotts Bluff | 34 min |
| Jul 17, 11:04 PM MDT | Special Weather Statement | CYS | Kimball | 26 min |
| Jul 18, 3:27 PM MDT | Special Weather Statement | CYS | Scotts Bluff | 33 min |
| Jul 18, 4:01 PM MDT | Special Weather Statement | CYS | Scotts Bluff | 29 min |
| Jul 18, 4:18 PM MDT | Severe Thunderstorm Warning | CYS | Box Butte, Morrill, Scotts Bluff, Sioux | 57 min |
| Jul 18, 4:56 PM MDT | Special Weather Statement | CYS | Kimball | 49 min |
| Jul 18, 5:42 PM MDT | Special Weather Statement | CYS | Banner | 33 min |
| Jul 18, 5:44 PM MDT | Special Weather Statement | CYS | Kimball | 46 min |
Nearby
Special Weather Statements in Wyoming, 2016Every special weather statement in 2016
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.