Alert archive / Minnesota / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 178, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this severe thunderstorm warning at Jul 25, 2011, 6:15 PM CDT for 4 counties in Minnesota. It was in force for 30 min. 3 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jul 25, 2011, 6:15 PM CDT (23:15 UTC)
- Expired
- Jul 25, 2011, 6:45 PM CDT
- In force
- 30 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Cottonwood County, MN, Jackson County, MN, Murray County, MN, Nobles County, MN
The radar
The Sioux Falls radar (KFSD), 101 km from the middle of the area, began a volume at 23:18 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 25, 6:27 PM CDT | HAIL 1 | Avoca, MN | IN ADDITION TO HAIL ESTIMATED AT 1 INCH IN DIAMETER, 1.00 INCH OF RAIN WAS MEASURED. |
| Jul 25, 6:48 PM CDT | HAIL 1.5 | 5 Nnw Brewster, MN | |
| Jul 25, 6:53 PM CDT | HAIL 1 | 6 N Worthington, MN |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 11.3 hours before the alert went out and 193 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
- 1775 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- 64 m²/s²
- 0-3 km storm-relative helicity
- 206 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
278 WUUS53 KFSD 252315 SVRFSD MNC033-063-101-105-252345- /O.NEW.KFSD.SV.W.0178.110725T2315Z-110725T2345Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE SIOUX FALLS SD 615 PM CDT MON JUL 25 2011 THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHWESTERN COTTONWOOD COUNTY IN SOUTHWEST MINNESOTA... NORTHWESTERN JACKSON COUNTY IN SOUTHWEST MINNESOTA... SOUTHEASTERN MURRAY COUNTY IN SOUTHWEST MINNESOTA... NORTHEASTERN NOBLES COUNTY IN SOUTHWEST MINNESOTA... * UNTIL 645 PM CDT * AT 616 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR FULDA...OR 9 MILES SOUTHEAST OF SLAYTON...AND MOVING SOUTH AT 25 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... BREWSTER AROUND 645 PM CDT... PRECAUTIONARY/PREPAREDNESS ACTIONS... SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER HOUR...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. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD. && LAT...LON 4367 9531 4364 9570 4393 9578 4399 9543 TIME...MOT...LOC 2316Z 343DEG 20KT 4387 9565 WIND...HAIL 60MPH 1.00IN $$ CJ
1 follow-up statement
490 WWUS53 KFSD 252331 SVSFSD SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 631 PM CDT MON JUL 25 2011 MNC033-063-101-105-252345- /O.CON.KFSD.SV.W.0178.000000T0000Z-110725T2345Z/ COTTONWOOD MN-JACKSON MN-MURRAY MN-NOBLES MN- 631 PM CDT MON JUL 25 2011 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHEASTERN NOBLES...SOUTHEASTERN MURRAY...NORTHWESTERN JACKSON AND SOUTHWESTERN COTTONWOOD COUNTIES UNTIL 645 PM CDT... AT 630 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS STORM WAS LOCATED NEAR FULDA...OR 12 MILES SOUTHEAST OF SLAYTON...MOVING SOUTH AT 25 MPH. ANOTHER SEVERE STORM WAS LOCATED NEAR AVOCA AND ALSO MOVING TO THE SOUTH AT 25 MPH. AT 627 PM CDT...QUARTER SIZE HAIL WAS REPORTED IN AVOCA. THE SEVERE THUNDERSTORM WILL BE NEAR... BREWSTER AROUND 645 PM CDT... PRECAUTIONARY/PREPAREDNESS ACTIONS... SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD. && LAT...LON 4367 9531 4364 9570 4393 9578 4399 9543 TIME...MOT...LOC 2330Z 343DEG 20KT 4383 9562 WIND...HAIL <58MPH 1.00IN $$ CJ
The office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 25, 3:53 PM CDT | Severe Thunderstorm Warning | FSD | Lincoln, Lyon | 37 min |
| Jul 25, 4:21 PM CDT | Severe Thunderstorm Warning | FSD | Lyon | 54 min |
| Jul 25, 5:33 PM CDT | Severe Thunderstorm Warning | FSD | Cottonwood, Murray | 42 min |
| Jul 25, 6:44 PM CDT | Severe Thunderstorm Warning | FSD | Jackson, Nobles | 46 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 2011Every severe thunderstorm warning in 2011
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.