Alert archive / North Dakota / Tornado Warnings in 2007
Tornado Warning 35, NWS Grand Forks, ND
NWS Grand Forks, ND issued this tornado warning at Aug 26, 2007, 7:17 PM CDT for Pembina County, Walsh County, North Dakota. It was in force for 58 min. 5 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
- Aug 26, 2007, 7:17 PM CDT (00:17 UTC)
- Expired
- Aug 26, 2007, 8:15 PM CDT
- In force
- 58 min
- Issued by
- NWS Grand Forks, ND
- Area
- Counties, with a storm outline in the text
Counties Pembina County, ND, Walsh County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 109 km from the middle of the area, began a volume at 00:20 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 |
|---|---|---|---|
| Aug 26, 7:35 PM CDT | TSTM WND DMG | 4 Se Hoople, ND | NUMEROUS TREES BLOWN DOWN IN FARMSTEAD. DIAMETER UNKNOWN. |
| Aug 26, 7:35 PM CDT | HAIL 2.75 | 2 S Hoople, ND | MOSTLY GOLFBALL HAIL...LARGEST HAIL APPEARED TO BE AGGREGATE TYPE. |
| Aug 26, 7:40 PM CDT | TORNADO 0 | 3 Nw Nash, ND | ORIGINALLY REPORTED AS NUMEROUS PUBLIC CALLS TO 911 DISPATCH IN GRAFTON ND. THE TORNADO TRACKED FOR ABOUT 3 MILES TO 1.8 NNE OF NASH BY 746 PM CDT. NUMEROUS BRANCHES WERE BROKEN DOWN AND SEVERAL TREE TOPS SNAPPED OFF IN SHELTER BELTS AND ALONG THE NORTH BRANCH |
| Aug 26, 7:45 PM CDT | TORNADO | 2 N Nash, ND | 911 CALL. NUMEROUS OTHER REPORTS OF FUNNELS IN THE SAME AREA. |
| Aug 26, 8:10 PM CDT | HAIL 1 | 7 N Grafton, ND |
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 |
|---|---|---|---|
| Aug 26, 5:10 PM CDT | Tornado Watch | SPC | 8 hr |
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 00:00Z, 0.3 hours before the alert went out and 294 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
- 1997 J/kg
- Mixed-layer CIN
- -24 J/kg
- Mixed-layer LCL
- 2248 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 11 m²/s²
- 0-3 km storm-relative helicity
- 129 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.9
The text
As transmitted, in the capitals the NWS used until 2016.
000 WFUS53 KFGF 270017 TORFGF NDC067-099-270115- /O.NEW.KFGF.TO.W.0035.070827T0017Z-070827T0115Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 717 PM CDT SUN AUG 26 2007 THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A * TORNADO WARNING FOR... EXTREME SOUTHEASTERN PEMBINA COUNTY IN NORTHEAST NORTH DAKOTA... NORTH CENTRAL WALSH COUNTY IN NORTHEAST NORTH DAKOTA... THIS INCLUDES THE CITY OF GRAFTON... * UNTIL 815 PM CDT * AT 715 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 3 MILES EAST OF EDINBURG...OR 19 MILES WEST OF GRAFTON...MOVING TO THE EAST AT 30 MPH. * THE TORNADO WILL BE NEAR... HOOPLE AT 725 PM CDT... NASH AT 730 PM CDT... GRAFTON AT 740 PM CDT... IF YOU ARE IN THE PATH OF THIS TORNADO ABANDON CARS AND MOBILE HOMES FOR A STURDY BUILDING. A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT SUNDAY EVENING FOR NORTHWESTERN MINNESOTA. LAT...LON 4854 9791 4841 9803 4834 9731 4854 9730 $$ JK/DK
3 follow-up statements
000 WWUS53 KFGF 270035 SVSFGF SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 734 PM CDT SUN AUG 26 2007 NDC067-099-270115- /O.CON.KFGF.TO.W.0035.000000T0000Z-070827T0115Z/ PEMBINA ND-WALSH ND- 734 PM CDT SUN AUG 26 2007 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 815 PM CDT FOR EXTREME SOUTHEASTERN PEMBINA AND NORTH CENTRAL WALSH COUNTIES... AT 734 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THE TORNADO WAS LOCATED 3 MILES SOUTH OF HOOPLE...OR 12 MILES NORTHWEST OF GRAFTON...MOVING TO THE EAST AT 30 MPH. * THE TORNADO WILL BE NEAR... NASH BY 740 PM CDT... 5 MILES NORTH OF GRAFTON BY 750 PM CDT... THIS STORM ALSO PRODUCED GOLF BALL SIZE HAIL IN HOOPLE AT 730 PM CDT. IF YOU ARE IN THE PATH OF THIS TORNADO ABANDON CARS AND MOBILE HOMES FOR A STURDY BUILDING. A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT SUNDAY EVENING FOR NORTHWESTERN MINNESOTA. LAT...LON 4854 9791 4841 9803 4834 9731 4854 9730 $$ DK/CS
000 WWUS53 KFGF 270057 SVSFGF SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 757 PM CDT SUN AUG 26 2007 NDC067-099-270115- /O.CON.KFGF.TO.W.0035.000000T0000Z-070827T0115Z/ PEMBINA ND-WALSH ND- 757 PM CDT SUN AUG 26 2007 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 815 PM CDT FOR EXTREME SOUTHEASTERN PEMBINA AND NORTHEASTERN WALSH COUNTIES... AT 757 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THE TORNADO WAS LOCATED NEAR NASH...OR 9 MILES NORTHWEST OF GRAFTON...MOVING TO THE EAST AT 35 MPH. THIS STORM PRODUCED A CONFIRMED TORNADO 2 MILES NORTH OF NASH AT 745 PM CDT. * THE TORNADO WILL BE NEAR... GRAFTON BY 805 PM CDT... OAKWOOD BY 810 PM CDT... HERRICK BY 815 PM CDT... IF YOU ARE IN THE PATH OF THIS TORNADO ABANDON CARS AND MOBILE HOMES FOR A STURDY BUILDING. A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT SUNDAY EVENING FOR NORTHWESTERN MINNESOTA. LAT...LON 4855 9778 4840 9773 4834 9719 4855 9717 $$ DK/CS
000 WWUS53 KFGF 270115 SVSFGF SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 815 PM CDT SUN AUG 26 2007 NDC067-099-270125- /O.EXP.KFGF.TO.W.0035.000000T0000Z-070827T0115Z/ PEMBINA ND-WALSH ND- 815 PM CDT SUN AUG 26 2007 ...THE TORNADO WARNING FOR EXTREME SOUTHEASTERN PEMBINA AND NORTHEASTERN WALSH COUNTIES EXPIRED AT 815 PM CDT... DOPPLER RADAR INDICATED THE STORM WAS NO LONGER SEVERE AND SO THE WARNING WAS ALLOWED TO EXPIRE AT 815 PM CDT. A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT SUNDAY EVENING FOR NORTHWESTERN MINNESOTA. LAT...LON 4855 9778 4840 9773 4834 9719 4855 9717 $$ DK/CS
The office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 26, 7:25 PM CDT | Severe Thunderstorm Warning | FGF | Nelson | 65 min |
| Aug 26, 7:50 PM CDT | Tornado Warning | FGF | Grand Forks, Nelson | 55 min |
| Aug 26, 8:41 PM CDT | Tornado Warning | FGF | Grand Forks | 64 min |
| Aug 26, 9:39 PM CDT | Severe Thunderstorm Warning | FGF | Traill | 66 min |
| Aug 26, 9:44 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks | 61 min |
| Aug 26, 9:51 PM CDT | Tornado Warning | FGF | Grand Forks | 54 min |
| Aug 26, 10:17 PM CDT | Tornado Warning | FGF | Steele | 39 min |
| Aug 26, 10:42 PM CDT | Severe Thunderstorm Warning | FGF | Traill | 63 min |
| Aug 26, 10:44 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks | 61 min |
| Aug 27, 3:05 PM CDT | Severe Thunderstorm Warning | FGF | Barnes | 55 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.