Alert archive / Minnesota / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 96, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this severe thunderstorm warning at Jul 26, 1997, 12:14 AM CDT for Murray County, Minnesota. It was in force for 46 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 26, 1997, 12:14 AM CDT (05:14 UTC)
- Expired
- Jul 26, 1997, 1:00 AM CDT
- In force
- 46 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Whole counties
County Murray County, MN
The radar
The Sioux Falls radar (KFSD), 91 km from the middle of the area, began a volume at 05:16 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 25, 11:00 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 5.2 hours before the alert went out and 195 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
- 2273 J/kg
- Mixed-layer CIN
- -8 J/kg
- Mixed-layer LCL
- 796 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 0 m²/s²
- 0-3 km storm-relative helicity
- 123 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.6
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KFSD 260515 RRA SVRFSD MNC101-260600- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE SIOUX FALLS SD 1214 AM CDT SAT JUL 26 1997 * SEVERE THUNDERSTORM WARNING FOR MURRAY COUNTY IN SOUTHWESTERN MINNESOTA * UNTIL 100 AM CDT * SOME AREAS AFFECTED HADLEY AROUND 1215 AM CDT SLAYTON AROUND 1220 AM CDT CURRIE AROUND 1225 AM CDT IONA AROUND 1225 AM CDT DOVRAY AROUND 1235 AM CDT * AT 1211 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 19 MILES EAST OF PIPESTONE OR 6 MILES NORTHWEST OF HADLEY MOVING SOUTHEAST AT 35 MPH. SEVE<RE 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. BLOOM
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 Sioux Falls, SD wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 25, 8:34 PM CDT, 3 hours 40 minutes earlier.
Area forecast discussion, Jul 25, 8:34 PM CDT, 3 hours 40 minutes before
SOUTH DAKOTA/NORTHWEST IOWA/SOUTHWEST MINNESOTA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SIOUX FALLS SD 834 PM CDT FRI JUL 25 1997 NEXRAD AT FSD SHOWS TSTMS OVR NERN SD MOVG SE TWD FORECAST AREA. THESE TSTMS SHOULD REACH COUNTIES IN WATCH AND FORECAST AREA THIS EVE. NEXRAD AT ABR ALSO SUPPPORTS THIS. TSTMS HAVE BEEN DVLPG ON PREVIOUS TSTM S BOUND OUTFLOW BOUNDRIES. NEXRAD AT FSD ALSO SHOWS TSTMS LONG RANGE OVR N CNTRL NE HAVE WEAKENED. TSTMS OVR CNTRL NE MOVG SLOWLY NORTHEAST BUT PAST HOUR HAVE ALSO SHOWN SIGNS OF WEAKENING. THESE APPEAR TO BE SEVERAL HOURS FROM FORECAST AREA ATTM BUT MAY REACH FORECAST AREA AFTER MIDN. MAY ISSUE UPDATE ON FORECAST FOR STRONGER WORDING ON TSTMS OVR NERN PART OF FORECAST AREA. .FSD...NONE BLOOM
The office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 25, 11:42 PM CDT | Severe Thunderstorm Warning | FSD | Lincoln, Pipestone | 33 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 1997Every severe thunderstorm warning in 1997
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.