Alert archive / Wyoming / Severe Thunderstorm Warnings in 2016
Severe Thunderstorm Warning 293, NWS Rapid City, SD
NWS Rapid City, SD issued this severe thunderstorm warning at Aug 8, 2016, 4:04 PM MDT for Campbell County, Wyoming. It was in force for 19 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
- Aug 8, 2016, 4:04 PM MDT (22:04 UTC)
- Expired
- Aug 8, 2016, 4:23 PM MDT
- In force
- 19 min
- Issued by
- NWS Rapid City, SD
- Area
- Storm-based polygon
- Hail
- 1.5 in
- Wind
- 60.0 mph
County Campbell County, WY
The radar
The Rapid City radar (KUDX), 217 km from the middle of the area, began a volume at 22:05 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, 10.1 hours before the alert went out and 214 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
- 80 J/kg
- Mixed-layer CIN
- -340 J/kg
- Mixed-layer LCL
- 1984 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 36 m²/s²
- 0-3 km storm-relative helicity
- 14 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Aug 8, 2:19 PM MDT, 1 hour 45 minutes earlier.
Area forecast discussion, Aug 8, 2:19 PM MDT, 1 hour 45 minutes before
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</html>Hazardous weather outlook, Aug 8, 6:49 AM MDT, 9 hours 15 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE RAPID CITY SD 649 AM MDT MON AUG 8 2016 WYZ054>056-058-071-091300- NORTHERN CAMPBELL-SOUTHERN CAMPBELL-WESTERN CROOK-WESTON- NORTHEASTERN CROOK- 649 AM MDT MON AUG 8 2016 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHEAST WYOMING. .DAY ONE...TODAY AND TONIGHT THERE IS A CHANCE FOR AFTERNOON AND EVENING THUNDERSTORMS ACROSS THE AREA. THERE IS A MARGINAL RISK FOR SEVERE STORMS LATE THIS AFTERNOON INTO THE EVENING. THE MAIN THREAT FROM ANY SEVERE STORMS WILL BE STRONG WIND GUSTS...WITH HAIL ALSO POSSIBLE. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY A FIRE WEATHER WATCH IS IN EFFECT FOR TUESDAY AFTERNOON AND EARLY EVENING. A VERY DRY AND HOT AIRMASS WILL SETTLE OVER MUCH OF NORTHEAST WYOMING TUESDAY AFTERNOON...BEHIND A DRY LINE AND AHEAD OF A COLD FRONT TO THE NORTH OF THE AREA. RELATIVE HUMIDITIES WILL DROP TO 10 TO 15 PERCENT ACROSS MUCH OF THE NORTHEAST WYOMING PLAINS. WINDS WILL BECOME SOUTH TO SOUTHWEST IN THE AFTERNOON...WITH BREEZY CONDITIONS POSSIBLE...ESPECIALLY NEAR AND SOUTH OF INTERSTATE 90. CRITICAL FIRE WEATHER CONDITIONS COULD DEVELOP DURING THE AFTERNOON AND PERSIST INTO THE EARLY EVENING. THERE IS A DAILY CHANCE FOR THUNDERSTORMS ACROSS MUCH OF THE AREA THIS WEEK. THERE IS A MARGINAL RISK FOR SEVERE STORMS ACROSS FAR NORTHEAST WYOMING LATE TUESDAY...WITH STRONG WIND GUSTS THE MAIN THREAT FROM ANY SEVERE STORMS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY. && STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER DETAILS OR UPDATES... OR CHECK OUR WEB SITE AT WEATHER.GOV/RAPIDCITY SDZ001-002-012>014-024>032-041>044-046-047-049-072>074-WYZ057- 091300- HARDING-PERKINS-BUTTE-NORTHERN MEADE CO PLAINS-ZIEBACH- NORTHERN BLACK HILLS-NORTHERN FOOT HILLS-RAPID CITY- SOUTHERN FOOT HILLS-CENTRAL BLACK HILLS-SOUTHERN BLACK HILLS- CUSTER CO PLAINS-PENNINGTON CO PLAINS-HAAKON-FALL RIVER- OGLALA LAKOTA-JACKSON-BENNETT-MELLETTE-TODD-TRIPP- STURGIS/PIEDMONT FOOT HILLS-SOUTHERN MEADE CO PLAINS- HERMOSA FOOT HILLS-WYOMING BLACK HILLS- 649 AM MDT MON AUG 8 2016 /749 AM CDT MON AUG 8 2016/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH CENTRAL SOUTH DAKOTA...THE BLACK HILLS OF SOUTH DAKOTA...WESTERN SOUTH DAKOTA...AND THE BLACK HILLS OF WYOMING. .DAY ONE...TODAY AND TONIGHT THERE IS A CHANCE FOR AFTERNOON AND EVENING THUNDERSTORMS ACROSS THE AREA. THERE IS A MARGINAL RISK FOR SEVERE STORMS...WITH THE MAIN THREATS FROM ANY SEVERE STORMS BEING LARGE HAIL AND STRONG WIND GUSTS. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY THERE IS A DAILY CHANCE FOR THUNDERSTORMS ACROSS MUCH OF THE AREA THIS WEEK. THERE IS A SLIGHT RISK FOR SEVERE STORMS TUESDAY AFTERNOON AND EVENING FROM NORTHWEST TO WEST CENTRAL SOUTH DAKOTA...WITH LARGE HAIL AND STRONG WIND GUSTS THE MAIN THREATS FROM ANY SEVERE STORMS. A MARGINAL RISK FOR SEVERE STORMS IS EXPECTED OVER THE REST OF THE AREA ON TUESDAY. THERE IS ALSO A MARGINAL RISK FOR SEVERE STORMS ON WEDNESDAY TO THE EAST OF THE BLACK HILLS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY. && STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER DETAILS OR UPDATES... OR CHECK OUR WEB SITE AT WEATHER.GOV/RAPIDCITY
In the hours before
Local storm report, Aug 8, 10:04 AM MDT, 6 hours before
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</html>Local storm report, Aug 8, 12:26 PM MDT, 3 hours 38 minutes before
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</html>Special weather statement, Aug 8, 3:54 PM MDT, 10 minutes before
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</html>The office that day
Everything else NWS Rapid City, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 7, 7:09 PM MDT | Special Weather Statement | UNR | 36 min | |
| Aug 7, 9:23 PM MDT | Special Weather Statement | UNR | Custer | 37 min |
| Aug 7, 9:33 PM MDT | Special Weather Statement | UNR | Butte | 42 min |
| Aug 7, 10:53 PM MDT | Special Weather Statement | UNR | Oglala Lakota | 37 min |
| Aug 8, 4:06 PM MDT | Severe Thunderstorm Warning | UNR | Lawrence, Meade, Pennington | 54 min |
| Aug 8, 4:51 PM MDT | Severe Thunderstorm Warning | UNR | Custer, Pennington | 54 min |
| Aug 8, 5:34 PM MDT | Severe Thunderstorm Warning | UNR | Custer, Fall River | 56 min |
| Aug 8, 5:37 PM MDT | Special Weather Statement | UNR | Lawrence | 23 min |
| Aug 8, 5:47 PM MDT | Special Weather Statement | UNR | Lawrence | 43 min |
| Aug 8, 5:58 PM MDT | Severe Thunderstorm Warning | UNR | Lawrence, Pennington | 38 min |
| Aug 7, 6:31 PM MDT | Special Weather Statement | UNR | Campbell | 29 min |
| Aug 7, 6:50 PM MDT | Severe Thunderstorm Warning | UNR | Campbell | 40 min |
| Aug 7, 7:19 PM MDT | Special Weather Statement | UNR | Crook | 26 min |
| Aug 7, 7:31 PM MDT | Special Weather Statement | UNR | Campbell | 29 min |
| Aug 7, 7:34 PM MDT | Special Weather Statement | UNR | Weston | 56 min |
| Aug 7, 7:47 PM MDT | Severe Thunderstorm Warning | UNR | Campbell, Crook | 28 min |
| Aug 7, 8:15 PM MDT | Special Weather Statement | UNR | Weston | 30 min |
| Aug 7, 8:21 PM MDT | Severe Thunderstorm Warning | UNR | Crook, Weston | 24 min |
| Aug 7, 8:32 PM MDT | Special Weather Statement | UNR | Crook | 28 min |
| Aug 7, 8:46 PM MDT | Special Weather Statement | UNR | Weston | 29 min |
| Aug 7, 9:00 PM MDT | Special Weather Statement | UNR | Crook | 30 min |
| Aug 8, 5:10 AM MDT | Fire Weather Watch | UNR | 23 hr | |
| Aug 8, 3:54 PM MDT | Special Weather Statement | UNR | Campbell | 51 min |
| Aug 8, 3:58 PM MDT | Severe Thunderstorm Warning | UNR | Weston | 62 min |
| Aug 8, 4:55 PM MDT | Severe Thunderstorm Warning | UNR | Weston | 34 min |
| Aug 8, 5:02 PM MDT | Special Weather Statement | UNR | Campbell | 43 min |
| Aug 8, 5:18 PM MDT | Severe Thunderstorm Warning | UNR | Campbell | 42 min |
Nearby
Severe Thunderstorm Warnings in Wyoming, 2016Every severe thunderstorm warning 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.