Alert archive / North Dakota / Tornado Warnings in 2020
Tornado Warning 13, NWS Bismarck, ND
NWS Bismarck, ND issued this tornado warning at Jul 7, 2020, 11:18 PM CDT for McLean County, Mercer County, Oliver County, North Dakota. It was in force for 27 min. 3 reports 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 7, 2020, 11:18 PM CDT (04:18 UTC)
- Expired
- Jul 7, 2020, 11:45 PM CDT
- In force
- 27 min
- Issued by
- NWS Bismarck, ND
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 1.0 in
Counties McLean County, ND, Mercer County, ND, Oliver County, ND
The radar
The Bismarck radar (KBIS), 61 km from the middle of the area, began a volume at 04:18 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 7, 11:30 PM CDT | TORNADO | Cross Ranch State Park, ND | THIS IS A LATE REPORT FROM THE STORM EVENT LAST TUESDAY NIGHT, JULY 7TH. A TRAINED SPOTTER REPORTS TREE DAMAGE IN CROSS RANCH STATE PARK ALONG THE MATAH TRAIL. THE TREE DAMAGE SUGGESTED A TORNADO TOUCHED DOWN AS THE TREES WERE TWISTED AND BROKEN INTO VARIOUS D |
| Jul 7, 11:40 PM CDT | TSTM WND DMG | Underwood, ND | REPORT RECEIVED VIA SOCIAL MEDIA OF A FEW BIG TREE BRANCHES DOWN AND POWER LOST SEVERAL TIMES. |
| Jul 7, 11:42 PM CDT | TSTM WND GST 83 | 1 Nnw Washburn, ND | WASHBURN NDDOT SITE. TIME ESTIMATED FROM RADAR. |
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 7, 7:59 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 00:00Z, 4.3 hours before the alert went out and 63 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
- 972 J/kg
- Mixed-layer CIN
- -223 J/kg
- Mixed-layer LCL
- 1688 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 49 m²/s²
- 0-3 km storm-relative helicity
- 178 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.4
The text
As transmitted.
972
WFUS53 KBIS 080418
TORBIS
NDC055-057-065-080445-
/O.NEW.KBIS.TO.W.0013.200708T0418Z-200708T0445Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Bismarck ND
1118 PM CDT Tue Jul 7 2020
The National Weather Service in Bismarck has issued a
* Tornado Warning for...
Southeastern McLean County in south central North Dakota...
Northeastern Oliver County in south central North Dakota...
East central Mercer County in south central North Dakota...
* Until 1145 PM CDT.
* At 1118 PM CDT, a severe thunderstorm capable of producing a
tornado was located 6 miles north of Center, or 13 miles southwest
of Washburn, moving northeast at 55 mph.
HAZARD...Tornado and quarter size hail.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed.
Damage to roofs, windows, and vehicles will occur. Tree
damage is likely.
* This dangerous storm will be near...
Cross Ranch State Park around 1130 PM CDT.
Washburn around 1135 PM CDT.
Other locations impacted by this tornadic thunderstorm include
Hensler, Falkirk and Fort Clark.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 4708 10131 4725 10149 4767 10088 4733 10068
4733 10075 4730 10075
TIME...MOT...LOC 0418Z 234DEG 46KT 4720 10129
TORNADO...RADAR INDICATED
HAIL...1.00IN
$$
CJS2 follow-up statements
900
WWUS53 KBIS 080429
SVSBIS
Severe Weather Statement
National Weather Service Bismarck ND
1129 PM CDT Tue Jul 7 2020
NDC055-057-065-080445-
/O.CON.KBIS.TO.W.0013.000000T0000Z-200708T0445Z/
McLean ND-Oliver ND-Mercer ND-
1129 PM CDT Tue Jul 7 2020
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1145 PM CDT FOR
SOUTHEASTERN MCLEAN...NORTHEASTERN OLIVER AND EAST CENTRAL MERCER
COUNTIES...
At 1129 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Washburn, moving northeast at 55 mph.
HAZARD...Tornado and quarter size hail.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This dangerous storm will be near...
Turtle Lake around 1150 PM CDT.
Other locations impacted by this tornadic thunderstorm include
Hensler, Falkirk and Fort Clark.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 4708 10131 4725 10149 4767 10088 4733 10068
4733 10075 4730 10075
TIME...MOT...LOC 0429Z 234DEG 46KT 4729 10111
TORNADO...RADAR INDICATED
HAIL...1.00IN
$$
CJS835
WWUS53 KBIS 080446
SVSBIS
Severe Weather Statement
National Weather Service Bismarck ND
1146 PM CDT Tue Jul 7 2020
NDC055-057-065-080455-
/O.EXP.KBIS.TO.W.0013.000000T0000Z-200708T0445Z/
McLean ND-Oliver ND-Mercer ND-
1146 PM CDT Tue Jul 7 2020
...THE TORNADO WARNING FOR SOUTHEASTERN MCLEAN...NORTHEASTERN OLIVER
AND EAST CENTRAL MERCER COUNTIES HAS EXPIRED...
The tornado threat has diminished and the Tornado Warning has been
cancelled. However, damaging winds remain likely and a Severe
Thunderstorm Warning remains in effect for the area.
LAT...LON 4708 10131 4725 10149 4767 10088 4733 10068
4733 10075 4730 10075
TIME...MOT...LOC 0445Z 234DEG 46KT 4739 10090
$$
CJSThe office that day
Everything else NWS Bismarck, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 7, 8:07 PM CDT | Special Weather Statement | BIS | Divide, McKenzie, Williams | 23 min |
| Jul 7, 8:33 PM CDT | Severe Thunderstorm Warning | BIS | Billings, Bowman, Golden Valley, Slope | 57 min |
| Jul 7, 8:43 PM CDT | Severe Thunderstorm Warning | BIS | Divide, McKenzie, Williams | 62 min |
| Jul 7, 9:29 PM CDT | Severe Thunderstorm Warning | BIS | Adams, Billings, Bowman, Dunn, Golden Valley, Hettinger and 2 more | 61 min |
| Jul 7, 9:34 PM CDT | Severe Thunderstorm Warning | BIS | Billings, Dunn, Golden Valley, McKenzie | 56 min |
| Jul 7, 9:44 PM CDT | Severe Thunderstorm Warning | BIS | Burke, Divide, McKenzie, Mountrail, Williams | 61 min |
| Jul 7, 10:13 PM CDT | Severe Thunderstorm Warning | BIS | Dunn, Grant, Hettinger, Mercer, Morton, Oliver and 1 more | 62 min |
| Jul 7, 10:29 PM CDT | Severe Thunderstorm Warning | BIS | Adams, Bowman | 46 min |
| Jul 7, 10:30 PM CDT | Severe Thunderstorm Warning | BIS | Burke, Mountrail, Renville, Ward | 45 min |
| Jul 7, 10:34 PM CDT | Tornado Warning | BIS | Mercer, Morton, Oliver, Stark | 26 min |
| Jul 7, 11:06 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Grant, McLean, Mercer, Morton, Oliver | 54 min |
| Jul 7, 11:11 PM CDT | Special Weather Statement | BIS | LaMoure, Stutsman | 49 min |
| Jul 7, 11:12 PM CDT | Severe Thunderstorm Warning | BIS | Bottineau, McHenry, McLean, Mountrail, Renville, Ward | 63 min |
| Jul 7, 11:53 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Kidder, McLean, Sheridan, Wells | 67 min |
| Jul 8, 12:00 AM CDT | Special Weather Statement | BIS | Foster, Stutsman | 45 min |
| Jul 8, 12:11 AM CDT | Severe Thunderstorm Warning | BIS | Stutsman | 64 min |
| Jul 8, 12:14 AM CDT | Severe Thunderstorm Warning | BIS | Bottineau, McHenry, Pierce, Rolette, Ward | 61 min |
| Jul 8, 12:14 AM CDT | Tornado Warning | BIS | Kidder, Wells | 31 min |
| Jul 8, 12:43 AM CDT | Severe Thunderstorm Warning | BIS | Foster, Kidder, Stutsman, Wells | 62 min |
| Jul 8, 12:45 AM CDT | Tornado Warning | BIS | Foster, Wells | 30 min |
| Jul 8, 1:49 AM CDT | Special Weather Statement | BIS | LaMoure | 41 min |
| Jul 8, 4:18 AM CDT | Special Weather Statement | BIS | Dickey | 42 min |
Nearby
Tornado Warnings in North Dakota, 2020Every tornado warning in 2020Tornadoes in 2020
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.