Alert archive / North Dakota / Tornado Warnings in 2011
Tornado Warning 17, NWS Grand Forks, ND
NWS Grand Forks, ND issued this tornado warning at Jun 17, 2011, 5:49 PM CDT for Sargent County, North Dakota. It was in force for 41 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jun 17, 2011, 5:49 PM CDT (22:49 UTC)
- Expired
- Jun 17, 2011, 6:30 PM CDT
- In force
- 41 min
- Issued by
- NWS Grand Forks, ND
- Area
- Storm-based polygon
County Sargent County, ND
The radar
The Aberdeen radar (KABR), 89 km from the middle of the area, began a volume at 22:50 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 |
|---|---|---|---|
| Jun 17, 5:34 PM CDT | Tornado Watch | SPC | 5 hr |
The nearest sounding before it
Aberdeen, SD (KABR), launched 12:00Z, 10.8 hours before the alert went out and 138 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
- 35 J/kg
- Mixed-layer CIN
- -177 J/kg
- Mixed-layer LCL
- 665 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 87 m²/s²
- 0-3 km storm-relative helicity
- 106 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
996
WFUS53 KFGF 172249
TORFGF
NDC081-172330-
/O.NEW.KFGF.TO.W.0017.110617T2249Z-110617T2330Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
549 PM CDT FRI JUN 17 2011
THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A
* TORNADO WARNING FOR...
EASTERN SARGENT COUNTY IN SOUTHEAST NORTH DAKOTA...
* UNTIL 630 PM CDT
* AT 546 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THE STORM WAS
LOCATED 4 MILES EAST OF HAVANA...OR 49 MILES SOUTHWEST OF
WAHPETON...MOVING TO THE NORTHEAST AT 15 MPH.
* THE TORNADIC STORM WILL BE NEAR...
RUTLAND AROUND 610 PM CDT.
GENESEO AND CAYUGA AROUND 630 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 4593 9772 4593 9775 4594 9775 4628 9744
4608 9725 4601 9726 4592 9741 4593 9771
TIME...MOT...LOC 2249Z 218DEG 11KT 4598 9754
$$
SPEICHER1 follow-up statement
730
WWUS53 KFGF 172320
SVSFGF
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
620 PM CDT FRI JUN 17 2011
NDC081-172330-
/O.CON.KFGF.TO.W.0017.000000T0000Z-110617T2330Z/
SARGENT ND-
620 PM CDT FRI JUN 17 2011
...A TORNADO WARNING REMAINS IN EFFECT FOR EASTERN SARGENT COUNTY IN
SOUTHEAST NORTH DAKOTA UNTIL 630 PM CDT...
AT 618 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 4 MILES SOUTHEAST
OF RUTLAND...OR 44 MILES SOUTHWEST OF WAHPETON...MOVING TO THE
NORTHEAST AT 15 MPH.
THE TORNADIC STORM WILL BE NEAR...
GENESEO AND CAYUGA AROUND 630 PM CDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU ARE IN THE PATH OF THIS TORNADO ABANDON CARS AND MOBILE HOMES
FOR A STURDY BUILDING.
HEAVY RAINFALL MAY OBSCURE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR
THE TORNADO. TAKE COVER NOW.
&&
LAT...LON 4600 9763 4625 9741 4608 9725 4601 9726
4593 9740
TIME...MOT...LOC 2320Z 220DEG 14KT 4601 9744
$$
SPEICHERThe office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 17, 5:55 PM CDT | Tornado Warning | FGF | Ransom, Sargent | 50 min |
| Jun 17, 6:14 PM CDT | Tornado Warning | FGF | Barnes, Ransom | 34 min |
| Jun 17, 6:27 PM CDT | Tornado Warning | FGF | Sargent | 33 min |
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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.