Alert archive / South Dakota / Severe Thunderstorm Warnings in 2016
Severe Thunderstorm Warning 22, NWS Rapid City, SD
NWS Rapid City, SD issued this severe thunderstorm warning at May 24, 2016, 5:31 PM MDT for Fall River County, Oglala Lakota County, South Dakota. It was in force for 59 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
- May 24, 2016, 5:31 PM MDT (23:31 UTC)
- Expired
- May 24, 2016, 6:30 PM MDT
- In force
- 59 min
- Issued by
- NWS Rapid City, SD
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
The radar
The Rapid City radar (KUDX), 95 km from the middle of the area, began a volume at 23:32 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
Denver, CO (KDEN), launched 12:00Z, 11.5 hours before the alert went out and 380 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1378 m above ground
- 0-6 km bulk shear
- 50 kt
- 0-1 km storm-relative helicity
- 89 m²/s²
- 0-3 km storm-relative helicity
- 122 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 May 24, 5:27 PM MDT, 4 minutes earlier.
Area forecast discussion, May 24, 5:27 PM MDT, 4 minutes before
Area Forecast Discussion For Western SD and Northeastern WY National Weather Service Rapid City SD 527 PM MDT TUE MAY 24 2016 .SHORT TERM...(This Evening Through Wednesday Night) Issued at 218 PM MDT Tue May 24 2016 Upper low spins over southern Saskatchewan, with southwest flow and a 70-80 kt jet over the CWA. At the surface, there's an area of high pressure over western ND and low pressure over southern WY. Winds across the CWA are southeasterly, bringing in more moist air with dew points in the 40s across central/western SD. Dew points are in the 30s across northeastern WY, with cooler temps in the 60s. Clouds are increasing, and radar is showing some showers over portions of the area. Upper divergence and energy associated with the low pressure system will aid in thunderstorm development this afternoon and evening, with the best energy over Nebraska. Instability is marginal over much of northeastern WY and western SD, with the best MLCAPE near 1000 J/kg along the Nebraska border. However, 0-6km shear up to 60 kts may result in a few severe thunderstorms. Precipitable water this evening will be around 150% of normal. Forecast soundings indicate the biggest threats will be strong winds and heavy rain, although large hail cannot be ruled out, especially near the Nebraska border. Hi-res convective models are showing a band of thunderstorms moving through the CWA this evening, shifting east of the area by morning. Additionally, there may be a secondary batch of storms that moves through the northeastern WY/Black Hills area as more shortwave energy pushes into the region. On Wednesday, NAM and GFS are showing the upper low splitting into two lows, while the ECMWF has a strong wave instead of a closed low. Nonetheless, this low/wave will help produce more showers/storms across the area, with better chances across northwestern SD. Surface low will move through SD and drag a cold front through the area. Highs will range from the 60s across the western CWA to the lower 80s across south central SD. With dew points in the mid to upper 50s across central SD, models are showing MLCAPE of 1000-2000 J/kg there. Best 0-6 km shear of 35-45 kts is also over south central SD, and so that area will have the greatest chance in our CWA of any thunderstorms becoming severe. .LONG TERM...(Thursday Through Tuesday) Issued at 218 PM MDT Tue May 24 2016 Persistent upper level troughing over the northwest CONUS will keep active southwest flow across the Northern Plains through the Memorial Day weekend. Periodic shortwave energy will eject out of the trough, keeping a daily chance of showers and thunderstorms in the forecast through the holiday weekend. Temperatures will be near seasonal averages, with highs each day generally in the mid 60s to upper 70s. Lows at night will be in the 40s to mid 50s. && .AVIATION...(For the 00Z TAFS Through 00Z Wednesday Evening) Issued At 520 PM MDT Tue May 24 2016 sct Showers and thunderstorms will move east across the area this evening. Some strong storms will be possible...mainly near the Nebraska border. MVFR/IFR conditions will be possible near any precipitation. A cold front will move into the area early wed morning with mvfr to ifr conds possible across ne wy into nw sd. Conds will trend vfr all locations wed afternoon. && .UNR Watches/Warnings/Advisories... SD...None. WY...None. && SHORT TERM...Pojorlie LONG TERM...13 AVIATION...JC
Hazardous weather outlook, May 24, 2:11 PM MDT, 3 hours 20 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE RAPID CITY SD 211 PM MDT TUE MAY 24 2016 SDZ001-002-012>014-024>032-041>044-046-047-049-072>074-WYZ054>058- 071-251300- 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-NORTHERN CAMPBELL-SOUTHERN CAMPBELL- WESTERN CROOK-WYOMING BLACK HILLS-WESTON-NORTHEASTERN CROOK- 211 PM MDT TUE MAY 24 2016 /311 PM CDT TUE MAY 24 2016/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN SOUTH DAKOTA AND NORTHEASTERN WYOMING. .DAY ONE...THIS AFTERNOON AND TONIGHT THUNDERSTORMS ARE LIKELY THIS AFTERNOON INTO TONIGHT. THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS WITH HAIL AND DAMAGING WINDS. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY THERE IS A DAILY CHANCE OF THUNDERSTORMS FROM WEDNESDAY THROUGH MONDAY. WIDESPREAD SEVERE THUNDERSTORMS ARE 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
Special weather statement, May 24, 3:57 PM MDT, 1 hour 34 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE RAPID CITY SD 357 PM MDT TUE MAY 24 2016 SDZ027-029-030-041-074-242215- HERMOSA FOOT HILLS SD-SOUTHERN BLACK HILLS SD-SOUTHERN FOOT HILLS SD- FALL RIVER SD-CUSTER CO PLAINS SD- 357 PM MDT TUE MAY 24 2016 ...STRONG THUNDERSTORM OVER NORTHEASTERN FALL RIVER AND SOUTHCENTRAL CUSTER COUNTIES... AT 357 PM MDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM OVER MAVERICK JUNCTION...OR NEAR HOT SPRINGS...MOVING NORTHEAST AT 15 MPH. DIME SIZE HAIL WILL BE POSSIBLE WITH THIS STORM. LOCATIONS IMPACTED INCLUDE... HOT SPRINGS...BUFFALO GAP...MAVERICK JUNCTION...WIND CAVE VISITORS CENTER...COLD BROOK RESERVOIR AND SOUTHEASTERN WIND CAVE NATIONAL PARK. PRECAUTIONARY/PREPAREDNESS ACTIONS... FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. LIGHTNING CAN STRIKE 10 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE SHELTER INSIDE A BUILDING OR VEHICLE. && LAT...LON 4334 10338 4338 10352 4360 10347 4351 10314 TIME...MOT...LOC 2157Z 204DEG 14KT 4341 10341 JC
Special weather statement, May 24, 4:17 PM MDT, 1 hour 14 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RAPID CITY SD
417 PM MDT TUE MAY 24 2016
SDZ029-074-242245-
HERMOSA FOOT HILLS SD-SOUTHERN BLACK HILLS SD-
417 PM MDT TUE MAY 24 2016
...STRONG THUNDERSTORM OVER SOUTH CENTRAL CUSTER COUNTY...
AT 415 PM MDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR
BUFFALO GAP...OR 7 MILES NORTHEAST OF HOT SPRINGS...MOVING NORTHEAST AT
20 MPH.
DIME SIZE HAIL WILL BE POSSIBLE WITH THIS STORM. HAIL COULD
POTENTIALLY COVER THE GROUND AT SOME LOCATIONS.
LOCATIONS IMPACTED INCLUDE...
BUFFALO GAP...WIND CAVE VISITORS CENTER...WIND CAVE NATIONAL PARK AND
SOUTHEASTERN CUSTER STATE PARK.
LAT...LON 4348 10350 4368 10344 4361 10315 4347 10333
4347 10346
TIME...MOT...LOC 2215Z 204DEG 19KT 4351 10338
JCSpecial weather statement, May 24, 4:24 PM MDT, 1 hour 7 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RAPID CITY SD
424 PM MDT TUE MAY 24 2016
SDZ041-242300-
FALL RIVER SD-
424 PM MDT TUE MAY 24 2016
...STRONG THUNDERSTORM OVER SOUTHWESTERN FALL RIVER COUNTY...
AT 423 PM MDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 12
MILES SOUTHWEST OF PROVO...OR 18 MILES SOUTHWEST OF EDGEMONT...MOVING
NORTHEAST AT 35 MPH.
NICKEL SIZE HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH
THIS STORM.
LOCATIONS IMPACTED INCLUDE...
PROVO AND ARDMORE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM.
LIGHTNING CAN STRIKE 10 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.
&&
LAT...LON 4300 10403 4303 10406 4314 10405 4326 10386
4325 10384 4302 10360 4299 10378
TIME...MOT...LOC 2223Z 240DEG 29KT 4305 10398
JCSpecial weather statement, May 24, 4:55 PM MDT, 36 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE RAPID CITY SD 455 PM MDT TUE MAY 24 2016 WYZ055-242330- SOUTHERN CAMPBELL WY- 455 PM MDT TUE MAY 24 2016 ...STRONG THUNDERSTORM OVER SOUTHEASTERN CAMPBELL COUNTY... AT 455 PM MDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR RENO JUNCTION...OR 7 MILES NORTH OF WRIGHT...MOVING NORTHEAST AT 35 MPH. NICKEL SIZE HAIL WILL BE POSSIBLE WITH THIS STORM. LOCATIONS IMPACTED INCLUDE... WRIGHT AND RENO JUNCTION. PRECAUTIONARY/PREPAREDNESS ACTIONS... FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. LIGHTNING CAN STRIKE 10 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE SHELTER INSIDE A BUILDING OR VEHICLE. && LAT...LON 4374 10549 4383 10570 4410 10556 4399 10518 TIME...MOT...LOC 2255Z 209DEG 30KT 4385 10555 JC
Special weather statement, May 24, 5:05 PM MDT, 26 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE RAPID CITY SD 505 PM MDT TUE MAY 24 2016 SDZ027-041-242330- SOUTHERN FOOT HILLS SD-FALL RIVER SD- 505 PM MDT TUE MAY 24 2016 ...STRONG THUNDERSTORM OVER SOUTH CENTRAL FALL RIVER COUNTY... AT 504 PM MDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR RUMFORD...OR 15 MILES SOUTHEAST OF EDGEMONT...MOVING EAST AT 30 MPH. NICKEL SIZE HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH THIS STORM. LOCATIONS IMPACTED INCLUDE... ARDMORE...RUMFORD AND ANGOSTURA RESERVOIR. PRECAUTIONARY/PREPAREDNESS ACTIONS... IF ON OR NEAR ANGOSTURA RESERVOIR...GET OUT OF THE WATER AND MOVE INDOORS OR INSIDE A VEHICLE. REMEMBER...LIGHTNING CAN STRIKE OUT TO 10 MILES FROM THE PARENT THUNDERSTORM. IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. MOVE TO SAFE SHELTER NOW! DO NOT BE CAUGHT ON THE WATER IN A THUNDERSTORM. && LAT...LON 4301 10375 4319 10382 4333 10342 4300 10329 TIME...MOT...LOC 2304Z 251DEG 27KT 4312 10363 JC
The office that day
Everything else NWS Rapid City, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 24, 3:57 PM MDT | Special Weather Statement | UNR | Custer | 18 min |
| May 24, 4:17 PM MDT | Special Weather Statement | UNR | Custer | 28 min |
| May 24, 4:24 PM MDT | Special Weather Statement | UNR | Fall River | 36 min |
| May 24, 5:05 PM MDT | Special Weather Statement | UNR | Fall River | 25 min |
| May 24, 5:50 PM MDT | Special Weather Statement | UNR | Jackson | 25 min |
| May 24, 4:55 PM MDT | Special Weather Statement | UNR | Campbell | 35 min |
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.