Alert archive / North Dakota / Tornado Warnings in 2007
Tornado Warning 9, NWS Bismarck, ND
NWS Bismarck, ND issued this tornado warning at May 25, 2007, 3:58 PM CDT for Sioux County, North Dakota. It was in force for 32 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 25, 2007, 3:58 PM CDT (20:58 UTC)
- Expired
- May 25, 2007, 4:30 PM CDT
- In force
- 32 min
- Issued by
- NWS Bismarck, ND
- Area
- Counties, with a storm outline in the text
County Sioux County, ND
The radar
The Bismarck radar (KBIS), 72 km from the middle of the area, began a volume at 20:59 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 25, 2:05 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 12:00Z, 9.0 hours before the alert went out and 73 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1317 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 107 m²/s²
- 0-3 km storm-relative helicity
- 248 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WFUS53 KBIS 252059 TORBIS NDC085-252130- /O.NEW.KBIS.TO.W.0009.070525T2058Z-070525T2130Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE BISMARCK ND 358 PM CDT FRI MAY 25 2007 THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A * TORNADO WARNING FOR... EASTERN SIOUX COUNTY IN SOUTH CENTRAL NORTH DAKOTA... * UNTIL 430 PM CDT * AT 358 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 12 MILES SOUTH OF PORCUPINE...OR ABOUT 55 MILES SOUTH OF BISMARCK...MOVING NORTHEAST AT 20 MPH. A SPOTTER REPORTED A FUNNEL CLOUD 10 MILES OF SELFRIDGE AT 349 PM CDT. * THE TORNADO WILL BE NEAR... 7 MILES SOUTHEAST OF PORCUPINE AROUND 425 PM CDT... LARGE HAIL TO THE SIZE OF GOLF BALLS WILL ALSO ACCOMPANY THIS STORM. 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. LAT...LON 4606 10132 4594 10111 4634 10056 4638 10087 $$ CS/HW
1 follow-up statement
000 WWUS53 KBIS 252117 SVSBIS SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE BISMARCK ND 416 PM CDT FRI MAY 25 2007 NDC085-252130- /O.CON.KBIS.TO.W.0009.000000T0000Z-070525T2130Z/ SIOUX ND- 416 PM CDT FRI MAY 25 2007 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 430 PM CDT FOR EASTERN SIOUX COUNTY... AT 416 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A TORNADO. THIS TORNADO WAS LOCATED 8 MILES SOUTH OF PORCUPINE...OR ABOUT 51 MILES SOUTH OF BISMARCK...MOVING NORTHEAST AT 20 MPH. THE TORNADO WILL BE NEAR... 6 MILES SOUTHEAST OF PORCUPINE AROUND 425 PM CDT... LARGE HAIL TO THE SIZE OF GOLF BALLS WILL ALSO ACCOMPANY THIS STORM. THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO COVER YOUR BODY AND STAY AWAY FROM WINDOWS. IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS. LAT...LON 4606 10132 4594 10111 4634 10056 4638 10087 $$ CS/HW
The office that day
Everything else NWS Bismarck, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 25, 3:01 PM CDT | Severe Thunderstorm Warning | BIS | Sioux | 59 min |
| May 25, 3:33 PM CDT | Tornado Warning | BIS | Sioux | 27 min |
| May 25, 4:03 PM CDT | Severe Thunderstorm Warning | BIS | Grant | 57 min |
| May 25, 4:08 PM CDT | Severe Thunderstorm Warning | BIS | Adams | 52 min |
| May 25, 4:30 PM CDT | Tornado Warning | BIS | Sioux | 30 min |
| May 25, 5:01 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Sioux | 48 min |
| May 25, 5:20 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Morton | 38 min |
| May 25, 5:22 PM CDT | Tornado Warning | BIS | Sioux | 23 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.