Alert archive / Minnesota / Tornado Warnings in 2011
Tornado Warning 37, NWS Grand Forks, ND
NWS Grand Forks, ND issued this tornado warning at Jul 16, 2011, 8:42 PM CDT for Kittson County, Marshall County, Roseau County, Minnesota. It was in force for 48 min. 2 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 16, 2011, 8:42 PM CDT (01:42 UTC)
- Expired
- Jul 16, 2011, 9:30 PM CDT
- In force
- 48 min
- Issued by
- NWS Grand Forks, ND
- Area
- Storm-based polygon
Counties Kittson County, MN, Marshall County, MN, Roseau County, MN
The radar
The Fargo/Grand Forks radar (KMVX), 131 km from the middle of the area, began a volume at 01:44 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 16, 9:06 PM CDT | HAIL 0.75 | Karlstad, MN | |
| Jul 16, 9:10 PM CDT | HAIL 1 | Karlstad, MN | MOSTLY PEA SIZED HAIL BUT A FEW QUARTERS IN THE MIX |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
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 16, 4:57 PM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
International Fa, MN (KINL), launched 00:00Z, 1.7 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
- 1181 J/kg
- Mixed-layer CIN
- -107 J/kg
- Mixed-layer LCL
- 1398 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 121 m²/s²
- 0-3 km storm-relative helicity
- 115 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 4.9
The text
As transmitted, in the capitals the NWS used until 2016.
264 WFUS53 KFGF 170142 TORFGF MNC069-089-135-170230- /O.NEW.KFGF.TO.W.0037.110717T0142Z-110717T0230Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 842 PM CDT SAT JUL 16 2011 THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A * TORNADO WARNING FOR... SOUTHEASTERN KITTSON COUNTY IN NORTHWEST MINNESOTA... NORTH CENTRAL MARSHALL COUNTY IN NORTHWEST MINNESOTA... SOUTHWESTERN ROSEAU COUNTY IN NORTHWEST MINNESOTA... * UNTIL 930 PM CDT * AT 839 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THE STORM WAS LOCATED 3 MILES WEST OF ENGLUND...OR 33 MILES EAST OF GRAFTON... MOVING TO THE EAST AT 25 MPH. * THE TORNADIC STORM WILL BE NEAR... KARLSTAD AROUND 900 PM CDT. STRANDQUIST AROUND 905 PM CDT. PRECAUTIONARY/PREPAREDNESS ACTIONS... IF YOU ARE IN THE PATH OF THIS TORNADO ABANDON CARS AND MOBILE HOMES FOR A STURDY BUILDING. && LAT...LON 4868 9635 4840 9619 4842 9678 4863 9678 TIME...MOT...LOC 0142Z 263DEG 22KT 4850 9666 $$ DK
2 follow-up statements
150 WWUS53 KFGF 170200 SVSFGF SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 900 PM CDT SAT JUL 16 2011 MNC069-089-135-170230- /O.CON.KFGF.TO.W.0037.000000T0000Z-110717T0230Z/ KITTSON MN-ROSEAU MN-MARSHALL MN- 900 PM CDT SAT JUL 16 2011 ...A TORNADO WARNING REMAINS IN EFFECT FOR NORTH CENTRAL MARSHALL... SOUTHWESTERN ROSEAU AND SOUTHEASTERN KITTSON COUNTIES IN NORTHWEST MINNESOTA UNTIL 930 PM CDT... AT 857 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 4 MILES WEST OF STRANDQUIST...OR 32 MILES NORTHWEST OF THIEF RIVER FALLS...MOVING TO THE EAST AT 25 MPH. THE TORNADIC STORM WILL BE NEAR... STRANDQUIST AROUND 905 PM CDT. PRECAUTIONARY/PREPAREDNESS ACTIONS... IF YOU ARE IN THE PATH OF THIS TORNADO ABANDON CARS AND MOBILE HOMES FOR A STURDY BUILDING. && LAT...LON 4846 9675 4863 9678 4868 9635 4840 9619 TIME...MOT...LOC 0200Z 263DEG 22KT 4851 9649 $$ DK
089 WWUS53 KFGF 170231 SVSFGF SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 931 PM CDT SAT JUL 16 2011 MNC069-089-135-170241- /O.EXP.KFGF.TO.W.0037.000000T0000Z-110717T0230Z/ KITTSON MN-ROSEAU MN-MARSHALL MN- 931 PM CDT SAT JUL 16 2011 ...THE TORNADO WARNING FOR NORTH CENTRAL MARSHALL...SOUTHWESTERN ROSEAU AND SOUTHEASTERN KITTSON COUNTIES IN NORTHWEST MINNESOTA HAS EXPIRED... THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED ACROSS THE WARNED AREA. LAT...LON 4846 9675 4863 9678 4868 9635 4840 9619 TIME...MOT...LOC 0200Z 263DEG 22KT 4851 9649 $$ DK
The office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 16, 7:54 PM CDT | Tornado Warning | FGF | Kittson, Marshall | 51 min |
| Jul 16, 9:34 PM CDT | Flash Flood Warning | FGF | Kittson, Roseau | 9 hr |
| Jul 16, 9:44 PM CDT | Severe Thunderstorm Warning | FGF | Kittson, Marshall, Roseau | 61 min |
| Jul 16, 10:38 PM CDT | Severe Thunderstorm Warning | FGF | Beltrami, Marshall, Roseau | 37 min |
| Jul 16, 10:41 PM CDT | Areal Flood Advisory | FGF | Kittson, Marshall | 8 hr |
| Jul 16, 11:08 PM CDT | Severe Thunderstorm Warning | FGF | Marshall | 52 min |
| Jul 16, 11:20 PM CDT | Severe Thunderstorm Warning | FGF | Kittson, Roseau | 40 min |
| Jul 17, 12:56 AM CDT | Severe Thunderstorm Warning | FGF | Beltrami, Clearwater, Lake of the Woods, Marshall, Pennington | 64 min |
| Jul 17, 1:53 AM CDT | Severe Thunderstorm Warning | FGF | Beltrami | 37 min |
| Jul 17, 2:25 AM CDT | Severe Thunderstorm Warning | FGF | Beltrami | 25 min |
| Jul 17, 3:01 AM CDT | Severe Thunderstorm Warning | FGF | Beltrami | 59 min |
Nearby
Tornado Warnings in Minnesota, 2011Every tornado warning in 2011Tornadoes 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.