Alert archive / North Dakota / Tornado Warnings in 2011
Tornado Warning 30, NWS Grand Forks, ND
NWS Grand Forks, ND issued this tornado warning at Jul 15, 2011, 3:25 AM CDT for Barnes County, North Dakota. It was in force for 50 min. 1 report 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 15, 2011, 3:25 AM CDT (08:25 UTC)
- Expired
- Jul 15, 2011, 4:15 AM CDT
- In force
- 50 min
- Issued by
- NWS Grand Forks, ND
- Area
- Storm-based polygon
County Barnes County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 85 km from the middle of the area, began a volume at 08:27 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 15, 3:45 AM CDT | TSTM WND DMG | Valley City, ND | NUMEROUS REPORTS OF TREE BRANCHES AND POWERLINES DOWN AROUND TOWN. |
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 15, 2:56 AM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 00:00Z, 8.4 hours before the alert went out and 199 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
- 2132 J/kg
- Mixed-layer CIN
- -66 J/kg
- Mixed-layer LCL
- 698 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 101 m²/s²
- 0-3 km storm-relative helicity
- 76 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 3.2
The text
As transmitted, in the capitals the NWS used until 2016.
646 WFUS53 KFGF 150825 TORFGF NDC003-150915- /O.NEW.KFGF.TO.W.0030.110715T0825Z-110715T0915Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 325 AM CDT FRI JUL 15 2011 THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A * TORNADO WARNING FOR... CENTRAL BARNES COUNTY IN SOUTHEAST NORTH DAKOTA... * UNTIL 415 AM CDT * AT 323 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THE STORM WAS LOCATED 2 MILES NORTHWEST OF SANBORN...OR 12 MILES WEST OF VALLEY CITY...MOVING TO THE EAST AT 30 MPH. * THE TORNADIC STORM WILL BE NEAR... BALD HILL DAM AROUND 335 AM CDT. VALLEY CITY AROUND 345 AM CDT. ORISKA AROUND 405 AM CDT. FOR MOTORISTS ON INTERSTATE 94...THE TORNADIC STORM WILL BE BETWEEN...MILE MARKER 275 AROUND 325 AM CDT...AND MILE MARKER 304 AROUND 405 AM CDT... PRECAUTIONARY/PREPAREDNESS ACTIONS... IF YOU ARE IN THE PATH OF THIS TORNADO ABANDON CARS AND MOBILE HOMES FOR A STURDY BUILDING. && LAT...LON 4710 9836 4710 9771 4678 9769 4679 9836 TIME...MOT...LOC 0825Z 272DEG 27KT 4697 9822 $$ HOPPES
2 follow-up statements
258 WWUS53 KFGF 150838 SVSFGF SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 338 AM CDT FRI JUL 15 2011 NDC003-150915- /O.CON.KFGF.TO.W.0030.000000T0000Z-110715T0915Z/ BARNES ND- 338 AM CDT FRI JUL 15 2011 ...A TORNADO WARNING REMAINS IN EFFECT FOR CENTRAL BARNES COUNTY IN SOUTHEAST NORTH DAKOTA UNTIL 415 AM CDT... AT 337 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 2 MILES NORTHWEST OF VALLEY CITY...MOVING TO THE EAST AT 30 MPH. THE TORNADIC STORM WILL BE NEAR... ORISKA AROUND 355 AM CDT. FOR MOTORISTS ON INTERSTATE 94...THE TORNADIC STORM WILL BE BETWEEN...MILE MARKER 289 AROUND 340 AM CDT...AND MILE MARKER 306 AROUND 400 AM CDT... PRECAUTIONARY/PREPAREDNESS ACTIONS... IF YOU ARE IN THE PATH OF THIS TORNADO ABANDON CARS AND MOBILE HOMES FOR A STURDY BUILDING. && LAT...LON 4710 9836 4710 9771 4678 9769 4679 9836 TIME...MOT...LOC 0838Z 283DEG 37KT 4694 9803 $$ HOPPES
730 WWUS53 KFGF 150917 SVSFGF SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 417 AM CDT FRI JUL 15 2011 NDC003-150926- /O.EXP.KFGF.TO.W.0030.000000T0000Z-110715T0915Z/ BARNES ND- 417 AM CDT FRI JUL 15 2011 ...THE TORNADO WARNING FOR CENTRAL BARNES COUNTY IN SOUTHEAST NORTH DAKOTA HAS EXPIRED... THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED AREA. LAT...LON 4710 9836 4710 9771 4678 9769 4679 9836 TIME...MOT...LOC 0838Z 283DEG 37KT 4694 9803 $$ HOPPES
The office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 15, 2:11 AM CDT | Severe Thunderstorm Warning | FGF | Griggs | 64 min |
| Jul 15, 2:41 AM CDT | Severe Thunderstorm Warning | FGF | Barnes | 64 min |
| Jul 15, 3:53 AM CDT | Severe Thunderstorm Warning | FGF | Ransom, Richland | 52 min |
| Jul 15, 4:03 AM CDT | Excessive Heat Watch | FGF | Barnes, Benson, Cass, Eddy, Grand Forks, Griggs and 9 more | 24 hr |
| Jul 15, 4:04 AM CDT | Severe Thunderstorm Warning | FGF | Barnes, Cass | 56 min |
| Jul 15, 4:18 AM CDT | Tornado Warning | FGF | Ransom, Richland | 42 min |
| Jul 15, 4:50 AM CDT | Severe Thunderstorm Warning | FGF | Richland | 55 min |
| Jul 15, 5:00 AM CDT | Severe Thunderstorm Warning | FGF | Cass, Traill | 43 min |
| Jul 15, 5:11 AM CDT | Areal Flood Advisory | FGF | Barnes | 9 hr |
| Jul 15, 5:12 AM CDT | Tornado Warning | FGF | Richland | 39 min |
| Jul 15, 5:47 AM CDT | Severe Thunderstorm Warning | FGF | Richland | 58 min |
| Jul 15, 3:15 PM CDT | Excessive Heat Warning | FGF | Barnes, Cass, Eddy, Grand Forks, Griggs, Nelson and 5 more | 5 days |
Nearby
Tornado Warnings in North Dakota, 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.