Alert archive / Wyoming / Tornado Warnings in 2005

Tornado Warning 16, NWS Rapid City, SD

July 5, 2005Weston County, Wyoming

NWS Rapid City, SD issued this tornado warning at Jul 5, 2005, 5:09 PM MDT for Weston County, Wyoming. It was in force for 66 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jul 5, 2005, 5:09 PM MDT (23:09 UTC)
Expired: Jul 5, 2005, 6:15 PM MDT
In force: 66 min
Issued by: NWS Rapid City, SD
Area: Counties, with a storm outline in the text

County Weston County, WY

The radar

The Rapid City radar (KUDX), 143 km from the middle of the area, began a volume at 23:09 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jul 5, 1:25 PM MDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Rapid City, SD (KUNR), launched 12:00Z, 11.2 hours before the alert went out and 137 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 166 J/kg
Mixed-layer CIN: -165 J/kg
Mixed-layer LCL: 1327 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 100 m²/s²
0-3 km storm-relative helicity: 105 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.8

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this tornado warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Rapid City, SD wrote its last area forecast discussion before this tornado warning went out at Jul 5, 2:00 PM MDT, 3 hours 9 minutes earlier.

Area forecast discussion, Jul 5, 2:00 PM MDT, 3 hours 9 minutes before

AREA FORECAST DISCUSSION FOR WESTERN SD AND NORTHEASTERN WY
NATIONAL WEATHER SERVICE RAPID CITY SD
200 PM MDT TUE JUL 5 2005

.DISCUSSION...AT 18Z SFC MAP SHOWS SFC TROF ACRS ERN WY/MT WITH
SRLY FLOW ACRS REGION. MID-LVL S/W MVG INTO NWRN CAMPBELL COUNTY
FCST TO DRIFT SLOWLY SE ACRS NE WY DURING NEXT SEVERAL HRS. AS
THIS WAVE MVS SE MID-LVL LIFT WILL INCREASE RAPIDLY ACRS NE AND
FAR WRN BLACK HILLS AFT 20Z. TDS IN 50S AND GOOD THETA-E ADV...WL
LIKELY SEE SCT TSTMS DVLP OVR NE WY AND IN BLK HLS. SHEAR SUGGESTS
STORMS WL HAVE TO MV EAST OF HILLS FOR THREAT OF SUPERCELLS...BUT
WL NOT RULE OUT CHC OF AN ISOLD SVR TSTM OR TWO ACRS NE WY/BLK
HLS...ESP IN THE HILLS.

ACTIVITY ACRS NE WY/FAR WRN SD SHLD DIE DOWN DURING EVENING HRS...
BUT LOW-LVL JET AND THETA-E ADV INC ON PLAINS ACRS CENT/S-CENT SD
AFT 06Z...THUS WL CONT CHC POPS ON CENTRAL PLAINS AFT 06Z.

ON THURS...MUCH THE SAME SCENERIO AS TODAY...WITH MID-LVL S/W AND
GOOD OMEGA DVLPING ACRS NE WY AND BLK HLS. WL CONT WITH CHC TSTMS
OVR THESE AREAS AFT 18Z THUR. THIS ACTIVITY SHLD DIE DOWN IN EARLY
EVENING HRS.

FRI/SAT UPPER RIDGE BEGINS TO DOMINATE WX WITH DRIER CONDS AND TEMPS
WELL ABV NORMAL...WARMER PLACES ON PLAINS WILL PUSH 100F...IF NOT
GETTING A FEW DEGREES WARMER. WL CONT SLGT CHC TSTMS ACRS HILLS BOTH
DAYS AS WEAK MID-LVL S/WS FCST TO MV ACRS HILLS BOTH DAYS.

IN THE EXTENDED...THE REGION WILL BE DOMINATED BY A STRONG UPPER
TROUGH BRINGING MORE DRY AND WARM WEATHER TO THE AREA. A COLD FRONT
IS FORECAST TO SLIDE ACROSS THE FORECAST AREA FROM WEST TO EAST LATE
MONDAY INTO TUESDAY MORNING. THIS WILL BE THE BEST CHANCE THE AREA
HAS FOR PRECIPITATION. TEMPERATURES OVERALL WILL REMAIN ABOVE NORMAL.

&&

.AVIATION...VFR CONDITIONS WILL PREVAIL ACROSS MOST AREAS THROUGH
THE FORECAST PERIOD. ISOLATED TO SCATTERED THUNDERSTORMS CAN BE
EXPECTED THIS AFTERNOON AND INTO THE EVENING ACROSS ALL TWEB ROUTES.
PRECIP IS EXPECTED TO END AROUND 03-04Z.

&&

.UNR...WATCHES/WARNINGS/ADVISORIES...
SD...NONE
WY...NONE

&&

Hazardous weather outlook, Jul 5, 10:40 AM MDT, 6 hours 29 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE RAPID CITY SD
1040 AM MDT TUE JUL 5 2005

SDZ001-002-012>014-024>032-041>044-046-047-049-072>074-WYZ054>058-
071-061900-
BENNETT-BUTTE-CENTRAL BLACK HILLS-CUSTER CO PLAINS-FALL RIVER-HAAKON-
HARDING-HERMOSA FOOT HILLS-JACKSON-MELLETTE-NORTHEASTERN CROOK-
NORTHERN BLACK HILLS-NORTHERN CAMPBELL-NORTHERN FOOT HILLS-
NORTHERN MEADE CO PLAINS-PENNINGTON CO PLAINS-PERKINS-RAPID CITY-
SHANNON-SOUTHERN BLACK HILLS-SOUTHERN CAMPBELL-SOUTHERN FOOT HILLS-
SOUTHERN MEADE CO PLAINS-STURGIS/PIEDMONT FOOT HILLS-TODD-TRIPP-
WESTERN CROOK-WESTON-WYOMING BLACK HILLS-ZIEBACH-
1040 AM MDT (1140 AM CDT) TUE JUL 5 2005

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN SOUTH DAKOTA AND
NORTHEASTERN WYOMING.

.DAY ONE...TODAY AND TONIGHT

...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER NORTHEAST
WYOMING...THE BLACK HILL AND SOUTHWESTERN AND SOUTH CENTRAL SOUTH
DAKOTA THIS AFTERNOON AND EVENING...

THERE IS A CHANCE OF THUNDERSTORMS ACROSS NORTHEAST WYOMING AND
WESTERN SOUTH DAKOTA TODAY. THE BEST CHANCE OF THUNDERSTORMS WILL BE
IN NORTHEAST WYOMING...THE BLACK HILLS AND SOUTHWESTERN SOUTH DAKOTA
WHERE SOME OF THE STORMS MAY BECOME SEVERE. THE MAIN THREAT FROM
THESE STORMS WILL BE LARGE HAIL...THOUGH ISOLATED DAMAGING WINDS OR
A TORNADO ARE POSSIBLE.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

AFTERNOOON AND EVENING THUNDERSTORMS ARE POSSIBLE BOTH WEDNESDAY AND
THURSDAY. THE AREA CONCERN WILL AGAIN BE ACROSS NORTHEAST WYOMING
AND FAR WESTERN SOUTH DAKOTA...INCLUDING THE BLACK HILLS. NO
HAZARDOUS WEATHER IS EXPECTED FROM FRIDAY THROUGH MONDAY OF NEXT
WEEK AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY.

In the hours before

Local storm report, Jul 5, 3:10 PM MDT, 1 hour 59 minutes before

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Local storm report, Jul 5, 3:16 PM MDT, 1 hour 53 minutes before

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE RAPID CITY SD
316 PM MDT TUE JUL 05 2005

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0215 PM     HAIL             5 NNE CENTER LAKE       43.86N 103.38W
07/05/2005  0.75 INCH        CUSTER             SD   TRAINED SPOTTER

&&

LCZEPYHA

Local storm report, Jul 5, 3:19 PM MDT, 1 hour 50 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RAPID CITY SD
319 PM MDT TUE JUL 05 2005

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0300 PM     HAIL             2 N BLUE BELL           43.74N 103.48W
07/05/2005  1.75 INCH        CUSTER             SD   TRAINED SPOTTER

            HAIL LASTED FROM 300 PM MDT UNTIL 315 PM MDT. VEHICLES
            REPORTED DAMAGED BY HAIL.

&&

LCZEPYHA

Local storm report, Jul 5, 4:02 PM MDT, 1 hour 7 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RAPID CITY SD
402 PM MDT TUE JUL 05 2005

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0335 PM     HAIL             6 S CUSTER PARK HEADQUA 43.68N 103.39W
07/05/2005  0.88 INCH        CUSTER             SD   PARK/FOREST SRVC

0350 PM     HAIL             6 S CUSTER PARK HEADQUA 43.68N 103.60W
07/05/2005  0.75 INCH        CUSTER             SD   PARK/FOREST SRVC

&&

JJOHNSON

Local storm report, Jul 5, 4:16 PM MDT, 53 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RAPID CITY SD
416 PM MDT TUE JUL 05 2005

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0358 PM     FLOOD            HAYWARD                 43.87N 103.33W
07/05/2005                   PENNINGTON         SD   LAW ENFORCEMENT

            THREE FEET OF WATER IN RUSHMORE CAVE GIFT SHOP

0405 PM     HAIL             6 NW INTERIOR           43.79N 102.07W
07/05/2005  1.00 INCH        PENNINGTON         SD   PUBLIC

&&

JJOHNSON

Local storm report, Jul 5, 4:42 PM MDT, 27 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RAPID CITY SD
442 PM MDT TUE JUL 05 2005

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0400 PM     HAIL             17 NNE CREIGHTON        44.48N 102.08W
07/05/2005  1.00 INCH        PENNINGTON         SD   PUBLIC

0425 PM     HAIL             15 NE CREIGHTON         44.41N 101.99W
07/05/2005  0.75 INCH        PENNINGTON         SD   PUBLIC

&&

JJOHNSON

The office that day

Everything else NWS Rapid City, SD issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 5, 1:37 PM MDT	Severe Thunderstorm Warning	UNR	Pennington	53 min
Jul 5, 2:21 PM MDT	Severe Thunderstorm Warning	UNR	Lawrence	38 min
Jul 5, 2:23 PM MDT	Severe Thunderstorm Warning	UNR	Custer, Pennington	67 min
Jul 5, 3:22 PM MDT	Severe Thunderstorm Warning	UNR		45 min
Jul 5, 3:26 PM MDT	Severe Thunderstorm Warning	UNR	Custer	64 min
Jul 5, 3:40 PM MDT	Severe Thunderstorm Warning	UNR	Jackson, Pennington	65 min
Jul 5, 4:16 PM MDT	Severe Thunderstorm Warning	UNR	Pennington	63 min
Jul 5, 4:24 PM MDT	Severe Thunderstorm Warning	UNR	Custer, Fall River	66 min
Jul 5, 4:41 PM MDT	Severe Thunderstorm Warning	UNR	Jackson	67 min
Jul 5, 4:42 PM MDT	Severe Thunderstorm Warning	UNR	Haakon	24 min
Jul 5, 4:45 PM MDT	Severe Thunderstorm Warning	UNR	Harding	75 min
Jul 5, 4:54 PM MDT	Severe Thunderstorm Warning	UNR	Bennett	66 min
Jul 5, 5:00 PM MDT	Severe Thunderstorm Warning	UNR	Meade	41 min
Jul 5, 5:22 PM MDT	Severe Thunderstorm Warning	UNR	Fall River	57 min
Jul 5, 5:56 PM MDT	Severe Thunderstorm Warning	UNR	Bennett	64 min
Jul 5, 4:31 PM MDT	Severe Thunderstorm Warning	UNR	Weston	59 min

Nearby

Tornado Warnings in Wyoming, 2005 Every tornado warning in 2005 Tornadoes 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.