Alert archive / South Dakota / Severe Thunderstorm Warnings in 2016
Severe Thunderstorm Warning 79, NWS Rapid City, SD
NWS Rapid City, SD issued this severe thunderstorm warning at Jun 24, 2016, 7:17 PM MDT for Bennett County, Todd County, South Dakota. It was in force for 43 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
- Jun 24, 2016, 7:17 PM MDT (01:17 UTC)
- Expired
- Jun 24, 2016, 8:00 PM MDT
- In force
- 43 min
- Issued by
- NWS Rapid City, SD
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Bennett County, SD, Todd County, SD
The radar
The North Platte radar (KLNX), 146 km from the middle of the area, began a volume at 01:16 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
N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 1.3 hours before the alert went out and 235 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
- 1034 J/kg
- Mixed-layer CIN
- -91 J/kg
- Mixed-layer LCL
- 2605 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 3 m²/s²
- 0-3 km storm-relative helicity
- 122 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.9
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 Jun 24, 2:48 PM MDT, 4 hours 29 minutes earlier.
Area forecast discussion, Jun 24, 2:48 PM MDT, 4 hours 29 minutes before
Area Forecast Discussion For Western SD and Northeastern WY
National Weather Service Rapid City SD
248 PM MDT FRI JUN 24 2016
.SHORT TERM...(This Evening Through Saturday Night)
Issued at 232 PM MDT Fri Jun 24 2016
Current Analysis: Upper level shortwave centered over eastern
Washington will continue to make its way eastward today. As this
feature moves over the Rockies, lee cyclogenesis will develop a
surface low over far southeastern MT and northeastern WY. This low
will move northeastward in east- central ND by Saturday morning
with attendant cold front sweeping through northeastern WY and
western SD between 06z and 15z Sat. Area radar returns show
thunderstorms moving into northeastern Wyoming and approaching
southwestern SD as suggested by earlier CAM runs. Temperatures are
in the mid-upper 90s across most of the area with dew points in
the 30s and 40s except for south-central SD where dew points are
in the 50s and 60s. Winds are generally out of the south and
southwest at 10-20 mph.
This afternoon and tonight... Very hot temperatures over the
area today are a result of a thermal ridge proceeding the cold
front... Low level moisture will be limited to south- central SD
as very dry air moves in on southwesterly winds throughout the
day. Can't rule out a strong thunderstorm over south-central SD even
though forcing will be limited to some modest pos theta-e
advection during the late afternoon. Elsewhere... Conditions are very
dry at the surface with steep low-mid level laps rates of around
8-9 deg/km. 850mb Td depression will be anywhere from 20-30
degrees. As disturbance moves in from west... model soundings show
increases in mid-upper level moisture resulting in elevated
MUCAPE. Some concern for dry lightning and perhaps downburst type
winds do exist with any storms that can initiate along area of
pre-frontal upper level forcing in northeastern WY, over the Black
Hills and SD plains late this afternoon and evening. This combined
with southwesterly winds gusting to 35mph and RH < 15% in
northeastern WY will lead to high probability for rapid wildfire
growth and potential ignition. Additional showers could develop
along the front after 06z... but CAPE will be very limited to null
at that time so lightning should be very limited at best. Main
concerns with the front will be strong northwesterly winds as CAA
helps mix 40-50mph wind gusts down to the surface along SD Plains.
On Saturday... upper low moves northeast into Manitoba by 12z Sunday
morning. Strong southwesterly winds aloft will become more zonal as
500mb jet develops south of the upper low. At the surface... post
frontal winds will continue to be strong at times through early
Saturday morning and continue to be breezy-windy through the day.
The strongest winds on Saturday afternoon will be across northwest
SD near the upper level jet...850mb westerly winds are progged to
increase to 30-40kts. Momentum transfer will maximize in the
afternoon as mixing occurs, allowing some strong wind gusts to mix
down at times. Temperatures will be 15-25 degrees cooler with
highs 75-85deg. Dry air throughout the vertical profile will
advect in with cold front, preventing any chance for
showers/storms on Saturday. Low relative humidity will continue to
be a concern... especially in northeastern Wyoming where RH < 15%
is possible during the afternoon.
.LONG TERM...(Sunday Through Friday)
Issued at 232 PM MDT Fri Jun 24 2016
The upper ridge will rebuild over the nrn Rockies on
Sunday allowing our temps to warm back well into the 80s. The ridge
will then flatten early in the week as a couple of strong short
waves move cross the ridge. This will bring better chances for
thunderstorms, especially on Tuesday and Wednesday along with
slightly cooler temps. The upper ridge will then build in amplitude
over the nrn Rockies for the end of the week, with warming temps and
smaller chances for pcpn.
&&
.AVIATION...(For the 18Z TAFS Through 18Z Saturday)
Issued At 232 PM MDT Fri Jun 24 2016
An approaching cdfnt will bring a chance for tstms later
this aftn through tonight. MVFR conditions are possible with heavier
storms...especially in the Black Hills area. Behind the
cdfnt...gusty Northwest winds will develop later tonight.
&&
.FIRE WEATHER...
Issued At 232 PM MDT Fri Jun 24 2016
FIRE WEATHER...High temperatures have reached the 90s late this
afternoon, and minimum relative humidity readings over northeastern
Wyoming will fall below 15 percent. Gusty southwest winds are
expected to develop over northeastern Wyoming late this afternoon,
with even gustier winds developing behind a cold front that will
cross the area this evening. Thunderstorms are possible this
afternoon and evening, so lightning will also be a threat. The Red
Flag Warning will continue for northeastern WY through midnight
tonight.
On Saturday, min RH values across portions of northeastern WY and
far southwestern SD may fall to around 15% again. At this time it
appears that wind speeds in those areas will remain below fire
weather watch/warning criteria during the period of lowest RH.
&&
.UNR Watches/Warnings/Advisories...
SD... Heat Advisory until 6 PM MDT /7 PM CDT/ this evening for SDZ032-
043-046-049.
Wind Advisory from 2 AM to 9 AM MDT Saturday for SDZ012>014-026-
031-032-043-072-073.
Wind Advisory from 2 AM to 6 PM MDT Saturday for SDZ001-002.
WY...Red Flag Warning until midnight MDT tonight for WYZ259-297>299.
&&
SHORT TERM...Ward
LONG TERM...10
AVIATION...13
FIRE WEATHER...10Hazardous weather outlook, Jun 24, 4:14 AM MDT, 15 hours 3 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE RAPID CITY SD 414 AM MDT FRI JUN 24 2016 SDZ001-002-012>014-024>031-041-042-044-047-072>074-251015- 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-FALL RIVER-OGLALA LAKOTA- BENNETT-TODD-STURGIS/PIEDMONT FOOT HILLS-SOUTHERN MEADE CO PLAINS- HERMOSA FOOT HILLS- 414 AM MDT FRI JUN 24 2016 /514 AM CDT FRI JUN 24 2016/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHWESTERN SOUTH DAKOTA...SOUTH CENTRAL SOUTH DAKOTA...SOUTHWESTERN SOUTH DAKOTA...AND THE BLACK HILLS OF SOUTH DAKOTA. .DAY ONE...TODAY AND TONIGHT THERE IS A CHANCE FOR THUNDERSTORMS ACROSS THE AREA TODAY...WITH A MARGINAL RISK OF SEVERE STORMS...ESPECIALLY WITH STRONG WINDS. A COLD FRONT WILL MOVE THROUGH THE REGION TONIGHT...CAUSING GUSTY NORTHWEST WINDS OF 20 TO 30 MPH WITH GUSTS AROUND 40 MPH. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY STRONG NORTHWEST WINDS WILL LINGER ACROSS NORTHWESTERN SOUTH DAKOTA SATURDAY. AFTER A DRY WEEKEND...CHANCES FOR THUNDERSTORMS RETURN NEXT WEEK. WIDESPREAD SEVERE WEATHER IS NOT EXPECTED AT THIS TIME. .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 SDZ032-043-046-049-251015- HAAKON-JACKSON-MELLETTE-TRIPP- 414 AM MDT FRI JUN 24 2016 /514 AM CDT FRI JUN 24 2016/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH CENTRAL SOUTH DAKOTA...AND SOUTHWESTERN SOUTH DAKOTA. .DAY ONE...TODAY AND TONIGHT HOT WEATHER IS EXPECTED TODAY...WITH TEMPERATURES AND HEAT INDICES AROUND 100 DEGREES THIS AFTERNOON AND EVENING. THERE IS A CHANCE FOR THUNDERSTORMS ACROSS THE AREA TODAY...WITH A MARGINAL RISK OF SEVERE STORMS...ESPECIALLY WITH STRONG WINDS. A COLD FRONT WILL MOVE THROUGH THE REGION TONIGHT...CAUSING GUSTY NORTHWEST WINDS OF 20 TO 30 MPH WITH GUSTS AROUND 40 MPH. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY AFTER A DRY WEEKEND...CHANCES FOR THUNDERSTORMS RETURN NEXT WEEK. WIDESPREAD SEVERE WEATHER IS NOT EXPECTED AT THIS TIME. .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 WYZ054>058-071-251015- NORTHERN CAMPBELL-SOUTHERN CAMPBELL-WESTERN CROOK- WYOMING BLACK HILLS-WESTON-NORTHEASTERN CROOK- 414 AM MDT FRI JUN 24 2016 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHEAST WYOMING. .DAY ONE...TODAY AND TONIGHT HOT AND DRY WEATHER TODAY...ALONG WITH GUSTY WINDS...WILL CREATE CRITICAL FIRE WEATHER CONDITIONS ACROSS NORTHEASTERN WYOMING. THERE IS A CHANCE FOR THUNDERSTORMS ACROSS THE AREA TODAY...WITH A MARGINAL RISK OF SEVERE STORMS...ESPECIALLY WITH STRONG WINDS. A COLD FRONT WILL MOVE THROUGH THE REGION TONIGHT...CAUSING GUSTY NORTHWEST WINDS OF 20 TO 30 MPH WITH GUSTS AROUND 40 MPH. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY AFTER A DRY WEEKEND...CHANCES FOR THUNDERSTORMS RETURN NEXT WEEK. WIDESPREAD SEVERE WEATHER IS NOT EXPECTED AT THIS TIME. .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, Jun 24, 5:16 PM MDT, 2 hours 1 minute before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RAPID CITY SD
516 PM MDT FRI JUN 24 2016
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0455 PM TSTM WND GST 2 SE HULETT 44.66N 104.57W
06/24/2016 E59 MPH CROOK WY AWOS
&&
MCKEMYLocal storm report, Jun 24, 5:24 PM MDT, 1 hour 53 minutes before
PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE RAPID CITY SD
524 PM MDT FRI JUN 24 2016
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0455 PM TSTM WND GST 2 SE HULETT 44.66N 104.57W
06/24/2016 M59 MPH CROOK WY AWOS
&&
CORRECTED EVENT
MCKEMYSpecial weather statement, Jun 24, 5:27 PM MDT, 1 hour 50 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE RAPID CITY SD 527 PM MDT FRI JUN 24 2016 SDZ026-030-031-073-074-250015- PENNINGTON CO PLAINS SD-HERMOSA FOOT HILLS SD- SOUTHERN MEADE CO PLAINS SD-CUSTER CO PLAINS SD-RAPID CITY SD- 527 PM MDT FRI JUN 24 2016 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTH CENTRAL MEADE...NORTH CENTRAL CUSTER AND CENTRAL PENNINGTON COUNTIES UNTIL 615 PM MDT... AT 526 PM MDT...DOPPLER RADAR WAS TRACKING SHOWERS NEAR RAPID CITY AIRPORT...OR 11 MILES SOUTHEAST OF RAPID CITY...MOVING NORTHEAST AT 40 MPH. WIND GUSTS OF 50 TO 55 MPH WILL BE POSSIBLE WITH THIS STORM. LOCATIONS IMPACTED INCLUDE... RAPID CITY...RAPID VALLEY...ELLSWORTH AIR FORCE BASE...BOX ELDER... NEW UNDERWOOD...HERMOSA...WASTA...OWANKA...ELM SPRINGS...CAPUTA... FARMINGDALE...WICKSVILLE AND RAPID CITY AIRPORT. THIS INCLUDES INTERSTATE 90 IN SOUTH DAKOTA BETWEEN MILE MARKERS 57 AND 105. LAT...LON 4408 10332 4436 10256 4407 10219 4380 10317 TIME...MOT...LOC 2326Z 238DEG 36KT 4397 10308 CARSTENS
Special weather statement, Jun 24, 6:12 PM MDT, 1 hour 5 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE RAPID CITY SD 612 PM MDT FRI JUN 24 2016 SDZ012-024>026-028-031-072-073-250100- NORTHERN FOOT HILLS SD-PENNINGTON CO PLAINS SD-BUTTE SD- SOUTHERN MEADE CO PLAINS SD-STURGIS/PIEDMONT FOOT HILLS SD- NORTHERN BLACK HILLS SD-RAPID CITY SD-CENTRAL BLACK HILLS SD- 612 PM MDT FRI JUN 24 2016 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN MEADE...CENTRAL BUTTE...LAWRENCE AND WEST CENTRAL PENNINGTON COUNTIES UNTIL 700 PM MDT... AT 612 PM MDT...DOPPLER RADAR WAS TRACKING STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 10 MILES NORTH OF BELLE FOURCHE RESERVOIR TO NEAR DEERFIELD RESERVOIR. MOVEMENT WAS EAST AT 40 MPH. WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE WITH THESE STORMS. LOCATIONS IMPACTED INCLUDE... RAPID CITY...SPEARFISH...STURGIS...BELLE FOURCHE...LEAD... HILL CITY...RAPID VALLEY...ELLSWORTH AIR FORCE BASE...BOX ELDER... SUMMERSET...BLACK HAWK...DEADWOOD...WHITEWOOD...JOHNSON SIDING... NEWELL...NEMO...NISLAND...PIEDMONT...SAINT ONGE AND VALE. THIS INCLUDES INTERSTATE 90 IN SOUTH DAKOTA BETWEEN MILE MARKERS 12 AND 68. LAT...LON 4521 10301 4402 10302 4388 10385 4493 10386 TIME...MOT...LOC 0012Z 250DEG 35KT 4488 10377 4398 10377 MCKEMY
Local storm report, Jun 24, 6:15 PM MDT, 1 hour 2 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RAPID CITY SD
615 PM MDT FRI JUN 24 2016
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0536 PM TSTM WND GST 1 N BEULAH 44.54N 104.08W
06/24/2016 M49 MPH CROOK WY DEPT OF HIGHWAYS
0540 PM TSTM WND GST 9 SW BATESLAND 43.05N 102.22W
06/24/2016 M53 MPH OGLALA LAKOTA SD DEPT OF HIGHWAYS
&&
MCKEMYLocal storm report, Jun 24, 6:41 PM MDT, 36 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 |
|---|---|---|---|---|
| Jun 24, 6:12 PM MDT | Special Weather Statement | UNR | Butte, Lawrence | 48 min |
| Jun 25, 2:03 AM MDT | Red Flag Warning | UNR | 19 hr |
Nearby
Severe Thunderstorm Warnings in South Dakota, 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.