Alert archive / Wyoming / Special Weather Statements in 2014

Special Weather Statement, NWS Riverton, WY

July 15, 2014Park County, Wyoming

NWS Riverton, WY issued this special weather statement at Jul 15, 2014, 1:25 PM MDT for Park County, Wyoming. It was in force for 50 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 15, 2014, 1:25 PM MDT (19:25 UTC)
Expired
Jul 15, 2014, 2:15 PM MDT
In force
50 min
Issued by
NWS Riverton, WY

County Park County, WY

The radar

The Riverton/Lander radar (KRIW), 184 km from the middle of the area, began a volume at 19:28 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, 7.4 hours before the alert went out and 188 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.

Skew-T log-pSkew-T log-p diagram, Riverton, WY at 12:00Z on 2014-07-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Riverton, WY at 12:00Z on 2014-07-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 28 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1771 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
28 m²/s²
0-3 km storm-relative helicity
102 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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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 Riverton, WY wrote its last area forecast discussion before this special weather statement went out at Jul 15, 11:17 AM MDT, 2 hours 8 minutes earlier.

Area forecast discussion, Jul 15, 11:17 AM MDT, 2 hours 8 minutes before
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Hazardous weather outlook, Jul 15, 5:00 AM MDT, 8 hours 25 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE RIVERTON WY
500 AM MDT TUE JUL 15 2014

WYZ001>020-022>030-161100-
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-
500 AM MDT TUE JUL 15 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN AND CENTRAL WYOMING.

.DAY ONE...TODAY AND TONIGHT

SCATTERED AFTERNOON AND EVENING THUNDERSTORMS.  ISOLATED SEVERE
THUNDERSTORMS POSSIBLE WITH LARGE HAIL AND DAMAGING WIND ACROSS
EAST CENTRAL WYOMING.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

WEDNESDAY...ISOLATED TO SCATTERED THUNDERSTORMS MAINLY IN THE
AFTERNOON AND EVENING AND IN THE EAST.

THURSDAY...ISOLATED THUNDERSTORMS MAINLY OVER THE NORTHWEST.

SATURDAY THROUGH MONDAY...ELEVATED FIRE WEATHER CONDITIONS SOUTHWEST
AND CENTRAL WITH BREEZY...VERY WARM AND BREEZY CONDITIONS ALONG WITH
ISOLATED DRY THUNDERSTORMS.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS ACROSS JOHNSON AND NATRONA COUNTIES SHOULD BE
ESPECIALLY ALERT FOR SEVERE THUNDERSTORMS THIS AFTERNOON AND
EVENING.   REPORT ANY SIGNIFICANT WEATHER PHENOMENA ASSOCIATED WITH
THUNDERSTORMS.

TEAM RIVERTON

In the hours before

Special weather statement, Jul 15, 10:57 AM MDT, 2 hours 28 minutes before
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Local storm report, Jul 15, 11:28 AM MDT, 1 hour 57 minutes before
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Special weather statement, Jul 15, 11:43 AM MDT, 1 hour 42 minutes before
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Special weather statement, Jul 15, 12:17 PM MDT, 1 hour 8 minutes before
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Special weather statement, Jul 15, 12:49 PM MDT, 36 minutes before
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Special weather statement, Jul 15, 1:25 PM MDT, 0 minutes before
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        Please try again in a few minutes.
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The office that day

Everything else NWS Riverton, WY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 14, 7:58 PM MDTSpecial Weather StatementRIW47 min
Jul 15, 10:57 AM MDTSpecial Weather StatementRIWNatrona48 min
Jul 15, 11:43 AM MDTSpecial Weather StatementRIW47 min
Jul 15, 12:49 PM MDTSpecial Weather StatementRIW41 min
Jul 15, 1:38 PM MDTSpecial Weather StatementRIWSheridan67 min
Jul 15, 1:55 PM MDTSpecial Weather StatementRIWPark50 min
Jul 15, 2:12 PM MDTSpecial Weather StatementRIWTeton48 min
Jul 15, 2:19 PM MDTSpecial Weather StatementRIWPark41 min
Jul 15, 2:49 PM MDTSpecial Weather StatementRIWJohnson41 min
Jul 15, 2:56 PM MDTSpecial Weather StatementRIW49 min
Jul 15, 3:07 PM MDTSpecial Weather StatementRIWTeton53 min
Jul 15, 3:16 PM MDTSpecial Weather StatementRIWPark44 min
Jul 15, 3:23 PM MDTSpecial Weather StatementRIWSweetwater52 min
Jul 15, 3:31 PM MDTSpecial Weather StatementRIWNatrona44 min
Jul 15, 3:39 PM MDTSpecial Weather StatementRIWTeton51 min
Jul 15, 3:47 PM MDTSpecial Weather StatementRIWTeton43 min
Jul 15, 3:51 PM MDTSpecial Weather StatementRIWPark39 min
Jul 15, 3:56 PM MDTSpecial Weather StatementRIWNatrona49 min
Jul 15, 3:59 PM MDTSpecial Weather StatementRIWNatrona31 min
Jul 15, 4:04 PM MDTSpecial Weather StatementRIWJohnson41 min
Jul 15, 4:31 PM MDTSpecial Weather StatementRIW44 min
Jul 15, 4:33 PM MDTSpecial Weather StatementRIWHot Springs, Washakie42 min
Jul 15, 4:35 PM MDTSpecial Weather StatementRIWTeton40 min
Jul 15, 4:36 PM MDTSpecial Weather StatementRIW24 min
Jul 15, 4:43 PM MDTSpecial Weather StatementRIW32 min
Jul 15, 4:46 PM MDTSpecial Weather StatementRIWHot Springs44 min
Jul 15, 4:48 PM MDTSpecial Weather StatementRIWNatrona42 min
Jul 15, 4:52 PM MDTSpecial Weather StatementRIWHot Springs38 min
Jul 15, 5:01 PM MDTSevere Thunderstorm WarningRIWFremont, Hot Springs59 min
Jul 15, 5:09 PM MDTSpecial Weather StatementRIWNatrona36 min
Jul 15, 5:17 PM MDTFlash Flood WarningRIWTeton4 hr
Jul 15, 5:19 PM MDTSpecial Weather StatementRIWTeton41 min
Jul 15, 5:33 PM MDTSpecial Weather StatementRIWJohnson42 min
Jul 15, 5:40 PM MDTSpecial Weather StatementRIWNatrona20 min
Jul 15, 5:57 PM MDTSevere Thunderstorm WarningRIWNatrona41 min

Nearby

Special Weather Statements in Wyoming, 2014Every special weather statement in 2014

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.