Alert archive / North Dakota / Tornado Warnings in 2007
Tornado Warning 3, NWS Bismarck, ND
NWS Bismarck, ND issued this tornado warning at May 6, 2007, 12:46 PM MDT for Grant County, Morton County, North Dakota. It was in force for 29 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
- May 6, 2007, 12:46 PM MDT (18:46 UTC)
- Expired
- May 6, 2007, 1:15 PM MDT
- In force
- 29 min
- Issued by
- NWS Bismarck, ND
- Area
- Counties, with a storm outline in the text
Counties Grant County, ND, Morton County, ND
The radar
The Bismarck radar (KBIS), 56 km from the middle of the area, began a volume at 18:46 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 |
|---|---|---|---|
| May 6, 12:07 PM MDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 12:00Z, 6.8 hours before the alert went out and 60 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
- 659 J/kg
- Mixed-layer CIN
- -84 J/kg
- Mixed-layer LCL
- 562 m above ground
- 0-6 km bulk shear
- 67 kt
- 0-1 km storm-relative helicity
- 288 m²/s²
- 0-3 km storm-relative helicity
- 292 m²/s²
- Significant tornado parameter
- 0.7
- Supercell composite
- 6.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WFUS53 KBIS 061846 TORBIS NDC037-059-061915- /O.NEW.KBIS.TO.W.0003.070506T1846Z-070506T1915Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE BISMARCK ND 146 PM CDT SUN MAY 6 2007 THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A * TORNADO WARNING FOR... EAST CENTRAL GRANT COUNTY IN SOUTH CENTRAL NORTH DAKOTA... SOUTH CENTRAL MORTON COUNTY IN SOUTH CENTRAL NORTH DAKOTA... * UNTIL 215 PM CDT(115 PM MDT) * AT 1237 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR ST. GERTRUDE...OR ABOUT 45 MILES SOUTHWEST OF BISMARCK...MOVING NORTHEAST AT 40 MPH. * THE TORNADO WILL BE NEAR... FLASHER AROUND 155 PM CDT... THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO COVER YOUR BODY AND STAY AWAY FROM WINDOWS. IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS. A TORNADO WATCH REMAINS IN EFFECT UNTIL 700 PM CDT SUNDAY EVENING(600 PM MDT SUNDAY EVENING) FOR EASTERN NORTH DAKOTA. LAT...LON 4635 10149 4625 10128 4649 10094 4664 10123 $$ RSL
2 follow-up statements
000 WWUS53 KBIS 061905 SVSBIS SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE BISMARCK ND 205 PM CDT SUN MAY 6 2007 NDC037-059-061915- /O.CON.KBIS.TO.W.0003.000000T0000Z-070506T1915Z/ GRANT ND-MORTON ND- 205 PM CDT SUN MAY 6 2007 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 215 PM CDT(115 PM MDT) FOR SOUTH CENTRAL MORTON AND EAST CENTRAL GRANT COUNTIES... AT 158 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A TORNADO. THIS POSSIBLE TORNADO WAS LOCATED NEAR FLASHER...OR ABOUT 35 MILES SOUTHWEST OF BISMARCK...MOVING NORTHEAST AT 35 MPH. THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO COVER YOUR BODY AND STAY AWAY FROM WINDOWS. IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS. A TORNADO WATCH REMAINS IN EFFECT UNTIL 700 PM CDT SUNDAY EVENING(600 PM MDT SUNDAY EVENING) FOR EASTERN NORTH DAKOTA. LAT...LON 4635 10149 4625 10128 4649 10094 4664 10123 $$ RSL
000 WWUS53 KBIS 061914 SVSBIS SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE BISMARCK ND 214 PM CDT SUN MAY 6 2007 NDC037-059-061924- /O.EXP.KBIS.TO.W.0003.000000T0000Z-070506T1915Z/ GRANT ND-MORTON ND- 214 PM CDT SUN MAY 6 2007 ...THE TORNADO WARNING FOR SOUTH CENTRAL MORTON AND EAST CENTRAL GRANT COUNTIES EXPIRES AT 215 PM CDT(115 PM MDT)... THE TORNADIC THUNDERSTORM HAS WEAKENED AND NO LONGER POSES A SIGNIFICANT THREAT. A TORNADO WATCH REMAINS IN EFFECT UNTIL 700 PM CDT SUNDAY EVENING(600 PM MDT SUNDAY EVENING) FOR EASTERN NORTH DAKOTA. LAT...LON 4635 10149 4625 10128 4649 10094 4664 10123 $$ RSL
The office that day
Everything else NWS Bismarck, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 5, 7:35 PM MDT | Flash Flood Warning | BIS | Dickey, LaMoure | 6 hr |
| May 6, 1:21 AM MDT | Flash Flood Warning | BIS | Dickey, LaMoure | 4 hr |
| May 6, 11:58 AM MDT | Severe Thunderstorm Warning | BIS | Grant, Sioux | 62 min |
| May 6, 12:15 PM MDT | Tornado Warning | BIS | Grant | 30 min |
| May 6, 3:38 PM MDT | Severe Thunderstorm Warning | BIS | Pierce | 21 min |
Nearby
Tornado Warnings in North Dakota, 2007Every tornado warning in 2007Tornadoes in 2007
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.