Alert archive / North Dakota / Tornado Warnings in 2011
Tornado Warning 26, NWS Bismarck, ND
NWS Bismarck, ND issued this tornado warning at Jul 8, 2011, 6:21 PM CDT for Emmons County, Morton County, Sioux County, North Dakota. It was in force for 24 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 8, 2011, 6:21 PM CDT (23:21 UTC)
- Expired
- Jul 8, 2011, 6:45 PM CDT
- In force
- 24 min
- Issued by
- NWS Bismarck, ND
- Area
- Storm-based polygon
Counties Emmons County, ND, Morton County, ND, Sioux County, ND
The radar
The Bismarck radar (KBIS), 32 km from the middle of the area, began a volume at 23:20 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 8, 6:38 PM CDT | TORNADO | 3 Nw Cannon Ball, ND | PUBLIC REPORTED TORNADO ON THE GROUND NEAR THE CANNON BALL RIVER. |
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 8, 2:32 PM CDT | Tornado Watch | SPC | 9 hr |
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 12:00Z, 11.4 hours before the alert went out and 31 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
- 57 J/kg
- Mixed-layer CIN
- -207 J/kg
- Mixed-layer LCL
- 1101 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 95 m²/s²
- 0-3 km storm-relative helicity
- 209 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.8
The text
As transmitted, in the capitals the NWS used until 2016.
414 WFUS53 KBIS 082321 TORBIS NDC029-059-085-082345- /O.NEW.KBIS.TO.W.0026.110708T2321Z-110708T2345Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE BISMARCK ND 621 PM CDT FRI JUL 8 2011 THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A * TORNADO WARNING FOR... NORTHWESTERN EMMONS COUNTY IN SOUTH CENTRAL NORTH DAKOTA... SOUTHEASTERN MORTON COUNTY IN SOUTH CENTRAL NORTH DAKOTA... NORTHEASTERN SIOUX COUNTY IN SOUTH CENTRAL NORTH DAKOTA... * UNTIL 645 PM CDT * AT 616 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED NEAR SOLEN...OR 27 MILES SOUTH OF BISMARCK...AND MOVING NORTHEAST AT 15 MPH. * LOCATIONS IMPACTED INCLUDE... CANNON BALL AND FORT RICE. PRECAUTIONARY/PREPAREDNESS ACTIONS... TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS. && LAT...LON 4664 10060 4643 10039 4629 10082 4644 10097 TIME...MOT...LOC 2320Z 236DEG 15KT 4642 10079 $$ HEINERT
2 follow-up statements
157
WWUS53 KBIS 082331
SVSBIS
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
631 PM CDT FRI JUL 8 2011
NDC029-059-085-082345-
/O.CON.KBIS.TO.W.0026.000000T0000Z-110708T2345Z/
EMMONS ND-MORTON ND-SIOUX ND-
631 PM CDT FRI JUL 8 2011
...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHEASTERN SIOUX...
SOUTHEASTERN MORTON AND NORTHWESTERN EMMONS COUNTIES UNTIL 645 PM
CDT...
AT 630 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
STORM WAS LOCATED 6 MILES NORTHWEST OF CANNON BALL...OR 26 MILES
SOUTH OF BISMARCK...MOVING EAST AT 25 MPH.
LOCATIONS IMPACTED INCLUDE...
FORT RICE.
IN ADDITION TO THE POSSIBLE TORNADO...LARGE HAIL AND VERY HEAVY RAIN
CAN ALSO BE EXPECTED WITH THIS STORM.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.
&&
LAT...LON 4634 10066 4637 10075 4649 10087 4664 10060
4643 10039
TIME...MOT...LOC 2331Z 248DEG 22KT 4644 10069
$$
HEINERT033
WWUS53 KBIS 082339
SVSBIS
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
639 PM CDT FRI JUL 8 2011
NDC029-059-085-082345-
/O.CON.KBIS.TO.W.0026.000000T0000Z-110708T2345Z/
EMMONS ND-MORTON ND-SIOUX ND-
639 PM CDT FRI JUL 8 2011
...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHEASTERN SIOUX...
SOUTHEASTERN MORTON AND NORTHWESTERN EMMONS COUNTIES UNTIL 645 PM
CDT...
AT 638 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
CONFIRMED TORNADO. THIS TORNADO WAS LOCATED NEAR CANNON BALL...OR 26
MILES SOUTH OF BISMARCK...MOVING EAST AT 20 MPH.
LOCATIONS IMPACTED INCLUDE...
CANNON BALL AND FORT RICE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.
MOTORISTS SHOULD NOT TAKE SHELTER UNDER HIGHWAY OVERPASSES. AS A LAST
RESORT... EITHER PARK YOUR VEHICLE AND STAY PUT...OR ABANDON YOUR
VEHICLE AND LIE DOWN IN A LOW LYING AREA.
IF ON OR NEAR A LAKE OR RIVER...GET OUT OF THE WATER AND MOVE INDOORS
OR INSIDE A VEHICLE. IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH
TO BE STRUCK BY LIGHTNING. IN ADDITION...THUNDERSTORMS CAN PRODUCE
LARGE CAPSIZING WAVES...EVEN ON SMALL BODIES OF WATER. MOVE INTO DOCK
AND SEEK SAFE SHELTER NOW. DON'T BE CAUGHT ON THE WATER IN A
THUNDERSTORM.
&&
LAT...LON 4634 10066 4638 10071 4653 10077 4664 10060
4643 10039
TIME...MOT...LOC 2339Z 249DEG 19KT 4645 10065
$$
HEINERTThe office that day
Everything else NWS Bismarck, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 8, 2:29 PM CDT | Tornado Warning | BIS | Golden Valley | 31 min |
| Jul 8, 2:51 PM CDT | Severe Thunderstorm Warning | BIS | Golden Valley, McKenzie | 39 min |
| Jul 8, 3:19 PM CDT | Areal Flood Advisory | BIS | Burke, Mountrail, Renville, Ward | 3 hr |
| Jul 8, 3:29 PM CDT | Severe Thunderstorm Warning | BIS | Burke, Mountrail, Renville, Ward | 40 min |
| Jul 8, 3:35 PM CDT | Severe Thunderstorm Warning | BIS | Grant | 55 min |
| Jul 8, 3:39 PM CDT | Severe Thunderstorm Warning | BIS | Billings, Golden Valley | 66 min |
| Jul 8, 4:00 PM CDT | Areal Flood Advisory | BIS | Billings, Dunn, Stark | 5 hr |
| Jul 8, 4:12 PM CDT | Severe Thunderstorm Warning | BIS | Dunn | 63 min |
| Jul 8, 4:21 PM CDT | Severe Thunderstorm Warning | BIS | Billings, Stark | 24 min |
| Jul 8, 4:26 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Morton | 64 min |
| Jul 8, 4:30 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Morton | 60 min |
| Jul 8, 4:39 PM CDT | Areal Flood Advisory | BIS | Burke, Divide, Williams | 3 hr |
| Jul 8, 5:15 PM CDT | Tornado Warning | BIS | Foster, Kidder, Stutsman, Wells | 30 min |
| Jul 8, 5:18 PM CDT | Tornado Warning | BIS | Grant, Morton | 42 min |
| Jul 8, 5:19 PM CDT | Severe Thunderstorm Warning | BIS | Dunn, McLean, Mercer | 14 min |
| Jul 8, 5:22 PM CDT | Tornado Warning | BIS | Dunn, Mercer | 23 min |
| Jul 8, 5:41 PM CDT | Tornado Warning | BIS | Dunn, Mercer | 49 min |
| Jul 8, 5:44 PM CDT | Tornado Warning | BIS | Stutsman | 31 min |
| Jul 8, 5:53 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Emmons, Morton, Sioux | 52 min |
| Jul 8, 6:15 PM CDT | Severe Thunderstorm Warning | BIS | Stutsman | 31 min |
| Jul 8, 6:21 PM CDT | Tornado Warning | BIS | McLean, Mercer, Oliver | 39 min |
| Jul 8, 6:42 PM CDT | Tornado Warning | BIS | Stutsman | 33 min |
| Jul 8, 6:45 PM CDT | Tornado Warning | BIS | Emmons, Morton, Sioux | 45 min |
| Jul 8, 6:52 PM CDT | Areal Flood Advisory | BIS | Stutsman | 6 hr |
| Jul 8, 6:59 PM CDT | Severe Thunderstorm Warning | BIS | McHenry, McLean, Oliver, Sheridan | 61 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.