Alert archive / North Dakota / Tornado Warnings in 2011
Tornado Warning 7, NWS Grand Forks, ND
NWS Grand Forks, ND issued this tornado warning at May 30, 2011, 8:34 PM CDT for Richland County, North Dakota. It was in force for 26 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
- May 30, 2011, 8:34 PM CDT (01:34 UTC)
- Expired
- May 30, 2011, 9:00 PM CDT
- In force
- 26 min
- Issued by
- NWS Grand Forks, ND
- Area
- Storm-based polygon
County Richland County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 120 km from the middle of the area, began a volume at 01:38 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 |
|---|---|---|---|
| May 30, 8:45 PM CDT | TSTM WND DMG | Walcott, ND | REPORTS OF DAMAGE TO MANY CARS AND BUILDINGS IN WALCOTT. |
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 |
|---|---|---|---|
| May 30, 3:52 PM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Aberdeen, SD (KABR), launched 00:00Z, 1.6 hours before the alert went out and 206 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
- 1125 J/kg
- Mixed-layer CIN
- -258 J/kg
- Mixed-layer LCL
- 775 m above ground
- 0-6 km bulk shear
- 58 kt
- 0-1 km storm-relative helicity
- 90 m²/s²
- 0-3 km storm-relative helicity
- 174 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -1.0
The text
As transmitted, in the capitals the NWS used until 2016.
933 WFUS53 KFGF 310134 TORFGF NDC077-310200- /O.NEW.KFGF.TO.W.0007.110531T0134Z-110531T0200Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 834 PM CDT MON MAY 30 2011 THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A * TORNADO WARNING FOR... CENTRAL AND NORTHERN RICHLAND COUNTY IN SOUTHEAST NORTH DAKOTA... * UNTIL 900 PM CDT * AT 828 PM CDT...THE PUBLIC REPORTED A TORNADO NEAR BARNEY...OR 18 MILES WEST OF WAHPETON. THE TORNADO WAS MOVING TO THE NORTH AT 45 MPH. * THE TORNADIC STORM WILL BE NEAR... COLFAX AROUND 845 PM CDT. WALCOTT AROUND 855 PM CDT. CHRISTINE AROUND 900 PM CDT. FOR MOTORISTS ON INTERSTATE 29...THE TORNADIC STORM WILL BE BETWEEN...MILE MARKER 39 AROUND 850 PM CDT...AND MILE MARKER 46 AROUND 900 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 4662 9708 4662 9679 4622 9688 4627 9713 TIME...MOT...LOC 0133Z 196DEG 37KT 4634 9696 $$ DTR
2 follow-up statements
598 WWUS53 KFGF 310153 SVSFGF SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 853 PM CDT MON MAY 30 2011 NDC077-310200- /O.CON.KFGF.TO.W.0007.000000T0000Z-110531T0200Z/ RICHLAND ND- 853 PM CDT MON MAY 30 2011 ...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHERN AND CENTRAL RICHLAND COUNTY IN SOUTHEAST NORTH DAKOTA UNTIL 900 PM CDT... AT 851 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 3 MILES NORTHEAST OF WALCOTT...OR 20 MILES SOUTH OF FARGO...MOVING TO THE NORTH AT 45 MPH. THE TORNADIC STORM WILL CROSS INTO CASS COUNTY JUST EAST OF KINDRED. PRECAUTIONARY/PREPAREDNESS ACTIONS... IF YOU ARE IN THE PATH OF THIS TORNADO ABANDON CARS AND MOBILE HOMES FOR A STURDY BUILDING. && LAT...LON 4662 9708 4662 9679 4622 9688 4627 9713 TIME...MOT...LOC 0153Z 196DEG 37KT 4661 9690 $$ DTR
098 WWUS53 KFGF 310201 SVSFGF SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 901 PM CDT MON MAY 30 2011 NDC077-310212- /O.EXP.KFGF.TO.W.0007.000000T0000Z-110531T0200Z/ RICHLAND ND- 901 PM CDT MON MAY 30 2011 ...THE TORNADO WARNING FOR NORTHERN AND CENTRAL RICHLAND COUNTY IN SOUTHEAST NORTH DAKOTA HAS EXPIRED... THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED AREA. LAT...LON 4662 9708 4662 9679 4622 9688 4627 9713 TIME...MOT...LOC 0153Z 196DEG 37KT 4661 9690 $$ DTR
The office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 30, 7:42 PM CDT | Severe Thunderstorm Warning | FGF | Ransom, Richland, Sargent | 63 min |
| May 30, 8:21 PM CDT | Severe Thunderstorm Warning | FGF | Ransom, Sargent | 24 min |
| May 30, 8:47 PM CDT | Tornado Warning | FGF | Cass | 43 min |
| May 30, 8:58 PM CDT | Tornado Warning | FGF | Grand Forks | 47 min |
| May 30, 9:06 PM CDT | Tornado Warning | FGF | Grand Forks, Traill | 39 min |
| May 30, 9:22 PM CDT | Severe Thunderstorm Warning | FGF | Traill | 38 min |
| May 30, 9:40 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks | 65 min |
| May 30, 9:48 PM CDT | Severe Thunderstorm Warning | FGF | Traill | 27 min |
| May 30, 10:20 PM CDT | Areal Flood Advisory | FGF | Grand Forks, Traill | 8 hr |
| May 31, 3:44 AM CDT | Wind Advisory | FGF | Barnes, Benson, Cass, Cavalier, Eddy, Grand Forks and 11 more | 19 hr |
| May 31, 6:12 PM CDT | High Wind Warning | FGF | Barnes, Benson, Cavalier, Eddy, Griggs, Nelson and 4 more | 3 hr |
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.