Alert archive / North Dakota / Tornado Warnings in 2011
Tornado Warning 33, NWS Bismarck, ND
NWS Bismarck, ND issued this tornado warning at Jul 8, 2011, 8:57 PM CDT for Emmons County, Logan County, McIntosh County, North Dakota. It was in force for 36 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
- Jul 8, 2011, 8:57 PM CDT (01:57 UTC)
- Expired
- Jul 8, 2011, 9:33 PM CDT
- In force
- 36 min
- Issued by
- NWS Bismarck, ND
- Area
- Storm-based polygon
Counties Emmons County, ND, Logan County, ND, McIntosh County, ND
The radar
The Bismarck radar (KBIS), 105 km from the middle of the area, began a volume at 02:00 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 |
|---|---|---|---|
| Jul 8, 2:32 PM CDT | Tornado Watch | SPC | 9 hr |
The nearest sounding before it
Aberdeen, SD (KABR), launched 00:00Z, 2.0 hours before the alert went out and 182 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
- 975 J/kg
- Mixed-layer CIN
- -10 J/kg
- Mixed-layer LCL
- 1645 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 48 m²/s²
- 0-3 km storm-relative helicity
- 117 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 4.2
The text
As transmitted, in the capitals the NWS used until 2016.
374 WFUS53 KBIS 090157 TORBIS NDC029-047-051-090245- /O.NEW.KBIS.TO.W.0033.110709T0157Z-110709T0245Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE BISMARCK ND 857 PM CDT FRI JUL 8 2011 THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A * TORNADO WARNING FOR... EAST CENTRAL EMMONS COUNTY IN SOUTH CENTRAL NORTH DAKOTA... SOUTHERN LOGAN COUNTY IN SOUTHEAST NORTH DAKOTA... NORTHERN MCINTOSH COUNTY IN SOUTHEAST NORTH DAKOTA... * UNTIL 945 PM CDT. * AT 856 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED 11 MILES WEST OF BURNSTAD...OR 55 MILES SOUTHEAST OF BISMARCK...AND MOVING EAST AT 45 MPH. * LOCATIONS IMPACTED INCLUDE... BURNSTAD...WISHEK...GREEN LAKE AND LEHR. PRECAUTIONARY/PREPAREDNESS ACTIONS... HEAVY RAINFALL MAY OBSCURE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR THE TORNADO. TAKE COVER NOW. && LAT...LON 4645 9922 4615 9922 4617 10005 4640 10001 TIME...MOT...LOC 0157Z 258DEG 38KT 4634 9984 $$ HAMILTON
2 follow-up statements
033 WWUS53 KBIS 090220 SVSBIS SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE BISMARCK ND 920 PM CDT FRI JUL 8 2011 NDC029-047-051-090245- /O.CON.KBIS.TO.W.0033.000000T0000Z-110709T0245Z/ EMMONS ND-LOGAN ND-MCINTOSH ND- 920 PM CDT FRI JUL 8 2011 ...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHERN MCINTOSH... SOUTHERN LOGAN AND EAST CENTRAL EMMONS COUNTIES UNTIL 945 PM CDT... AT 914 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED NEAR BURNSTAD...MOVING EAST AT 35 MPH. LOCATIONS IMPACTED INCLUDE... GREEN LAKE AND LEHR. IN ADDITION TO THE TORNADO THREAT...STRAIGHT LINE WINDS OVER 60 MPH ARE LIKELY WITH THIS STORM. PRECAUTIONARY/PREPAREDNESS ACTIONS... HEAVY RAINFALL MAY OBSCURE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR THE TORNADO. TAKE COVER NOW. && LAT...LON 4645 9922 4615 9922 4617 10005 4640 10001 TIME...MOT...LOC 0220Z 260DEG 29KT 4638 9959 $$ HAMILTON
880 WWUS53 KBIS 090233 SVSBIS SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE BISMARCK ND 933 PM CDT FRI JUL 8 2011 NDC029-047-051-090242- /O.CAN.KBIS.TO.W.0033.000000T0000Z-110709T0245Z/ EMMONS ND-LOGAN ND-MCINTOSH ND- 933 PM CDT FRI JUL 8 2011 ...THE TORNADO WARNING FOR NORTHERN MCINTOSH...SOUTHERN LOGAN AND EAST CENTRAL EMMONS COUNTIES IS CANCELLED... THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED AREA. HOWEVER A NEW TORNADO WARNING HAS BEEN ISSUED JUST TO THE NORTH AND EAST OF THIS EXPIRING WARNING. IN ADDITION...STRONG THUNDERSTORMS MAY REDEVELOP...AND A TORNADO WATCH REMAINS IN EFFECT UNTIL 10 PM CDT. LAT...LON 4645 9922 4615 9922 4617 10005 4640 10001 TIME...MOT...LOC 0232Z 260DEG 29KT 4640 9945 $$ HAMILTON
The office that day
Everything else NWS Bismarck, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 8, 7:15 PM CDT | Severe Thunderstorm Warning | BIS | Stutsman | 60 min |
| Jul 8, 7:25 PM CDT | Tornado Warning | BIS | Burleigh, Emmons, Kidder | 50 min |
| Jul 8, 7:31 PM CDT | Areal Flood Warning | BIS | Burke, Divide, Mountrail, Ward | 6 hr |
| Jul 8, 7:42 PM CDT | Flash Flood Warning | BIS | Stutsman | 6 hr |
| Jul 8, 8:06 PM CDT | Areal Flood Advisory | BIS | Burleigh, Emmons, Grant, Morton, Sioux | 11 hr |
| Jul 8, 8:16 PM CDT | Tornado Warning | BIS | Burleigh, Emmons, Kidder, Logan | 29 min |
| Jul 8, 8:42 PM CDT | Tornado Warning | BIS | Kidder, Logan, Stutsman | 48 min |
| Jul 8, 8:51 PM CDT | River Flood Warning | BIS | Stutsman | 4 days |
| Jul 8, 9:20 PM CDT | Areal Flood Advisory | BIS | Emmons, Kidder, Logan, McIntosh, Sioux, Stutsman | 6 hr |
| Jul 8, 9:30 PM CDT | Tornado Warning | BIS | Kidder, Logan, Stutsman | 45 min |
| Jul 8, 9:52 PM CDT | Severe Thunderstorm Warning | BIS | Dickey, LaMoure, Logan, McIntosh | 53 min |
| Jul 8, 10:30 PM CDT | Severe Thunderstorm Warning | BIS | Dickey, LaMoure | 60 min |
| Jul 8, 11:09 PM CDT | Areal Flood Advisory | BIS | Dickey, LaMoure | 11 hr |
| Jul 9, 1:41 AM CDT | Areal Flood Warning | BIS | Stutsman | 12 hr |
| Jul 9, 2:01 AM CDT | Areal Flood Advisory | BIS | McKenzie, Williams | 5 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.