Alert archive / South Dakota / Severe Thunderstorm Warnings in 1995
Severe Thunderstorm Warning 87, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this severe thunderstorm warning at Aug 13, 1995, 12:53 PM CDT for Brookings County, Lake County, South Dakota. It was in force for 32 min.
The area
The counties it named.
The facts
- Issued
- Aug 13, 1995, 12:53 PM CDT (17:53 UTC)
- Expired
- Aug 13, 1995, 1:25 PM CDT
- In force
- 32 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Whole counties
Counties Brookings County, SD, Lake County, SD
The radar
The Sioux Falls radar (KFSD), 70 km from the middle of the area, began a volume at 18:07 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
Aberdeen, SD (KABR), launched 12:00Z, 5.9 hours before the alert went out and 138 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
- 1795 J/kg
- Mixed-layer CIN
- -149 J/kg
- Mixed-layer LCL
- 514 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- -6 m²/s²
- 0-3 km storm-relative helicity
- 43 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KFSD 131755 RRA SVRFSD SDC011-079-131825- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE SIOUX FALLS SD 1253 PM CDT SUN AUG 13 1995 THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 125 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN EAST CENTRAL SOUTH DAKOTA ...BROOKINGS COUNTY ...NORTHEASTERN LAKE COUNTY AT 1250 PM CDT...A SEVERE THUNDERSTORM WAS DETECTED BY NATIONAL WEATHER SERVICE DOPPLER RADAR 17 MILES SOUTHWEST OF BROOKINGS OR NEAR NUNDA MOVING NORTHEAST AT 35 MPH. THIS STORM CAN BE EXPECTED IN THE VICINITY OF... NUNDA AROUND 1255 PM CDT BROOKINGS AROUND 115 PM CDT SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 MPH... DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. CHAPMAN
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.
In the hours before
Special weather statement, Aug 13, 12:05 PM CDT, 48 minutes before
SDZ004>011-016>023-033>040-045>071-132200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 1205 PM CDT SUN AUG 13 1995 ...SEVERE WEATHER POSSIBLE THIS AFTERNOON AND EVENING ACROSS CENTRAL AND EASTERN SOUTH DAKOTA... A STRONG POTENTIAL FOR SEVERE THUNDERSTORMS EXISTS THIS AFTERNOON AND EVENING ACROSS CENTRAL AND EASTERN SOUTH DAKOTA...WITH THE GREATEST THREAT OF SEVERE THUNDERSTORMS IN THE NORTHEAST PARTS OF THE STATE. A VERY WARM...MOIST...AND UNSTABLE AIR MASS LIES ACROSS CENTRAL AND EASTERN SOUTH DAKOTA. A STRONG COLD FRONT IN WESTERN SOUTH DAKOTA AT LATE MORNING WILL RACE TO THE EAST THIS AFTERNOON AND SET OFF A LINE OF STRONG TO SEVERE THUNDERSTORMS AHEAD OF THE FRONT. AT THIS TIME...THE FRONT IS EXPECTED TO REACH THE MISSOURI RIVER BY LATE AFTERNOON AND THE EASTERN BORDER AROUND 9PM. THUNDERSTORMS WERE DEVELOPING RAPIDLY LATE THIS MORNING EAST OF THE MISSOURI RIVER...AND ACROSS MOST OF NORTHEAST NEBRASKA. THESE STORMS WILL CONTINUE TO PROPAGATE INTO AN INCREASINGLY UNSTABLE AIR MASS OVER EASTERN SOUTH DAKOTA THIS AFTERNOON AND EVENING. EXTREMELY HEAVY RAIN AND STRONG WINDS APPEAR TO BE THE GREATEST THREAT WITH THESE STORMS...BUT IN THE NORTHEAST PARTS OF THE STATE WHERE STRONGER WINDS ALOFT EXIST...ISOLATED TORNADOES ARE POSSIBLE. CHAPMAN
Special weather statement, Aug 13, 12:10 PM CDT, 43 minutes before
SDZ004>011-016>023-033>040-045>071-132200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 1205 PM CDT SUN AUG 13 1995 ...SEVERE WEATHER POSSIBLE THIS AFTERNOON AND EVENING ACROSS CENTRAL AND EASTERN SOUTH DAKOTA... A STRONG POTENTIAL FOR SEVERE THUNDERSTORMS EXISTS THIS AFTERNOON AND EVENING ACROSS CENTRAL AND EASTERN SOUTH DAKOTA...WITH THE GREATEST THREAT OF SEVERE THUNDERSTORMS IN THE NORTHEAST PARTS OF THE STATE. A VERY WARM...MOIST...AND UNSTABLE AIR MASS LIES ACROSS CENTRAL AND EASTERN SOUTH DAKOTA. A STRONG COLD FRONT IN WESTERN SOUTH DAKOTA AT LATE MORNING WILL RACE TO THE EAST THIS AFTERNOON AND SET OFF A LINE OF STRONG TO SEVERE THUNDERSTORMS AHEAD OF THE FRONT. AT THIS TIME...THE FRONT IS EXPECTED TO REACH THE MISSOURI RIVER BY LATE AFTERNOON AND THE EASTERN BORDER AROUND 9PM. THUNDERSTORMS WERE DEVELOPING RAPIDLY LATE THIS MORNING EAST OF THE MISSOURI RIVER...AND ACROSS MOST OF NORTHEAST NEBRASKA. THESE STORMS WILL CONTINUE TO PROPAGATE INTO AN INCREASINGLY UNSTABLE AIR MASS OVER EASTERN SOUTH DAKOTA THIS AFTERNOON AND EVENING. EXTREMELY HEAVY RAIN AND STRONG WINDS APPEAR TO BE THE GREATEST THREAT WITH THESE STORMS...BUT IN THE NORTHEAST PARTS OF THE STATE WHERE STRONGER WINDS ALOFT EXIST...ISOLATED TORNADOES ARE POSSIBLE. CHAPMAN
The office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 13, 1:08 PM CDT | Severe Thunderstorm Warning | FSD | Moody | 32 min |
| Aug 13, 1:22 PM CDT | Severe Thunderstorm Warning | FSD | Brookings | 26 min |
| Aug 13, 1:32 PM CDT | Severe Thunderstorm Warning | FSD | Brookings | 30 min |
Nearby
Severe Thunderstorm Warnings in South Dakota, 1995Every severe thunderstorm warning in 1995
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.