Alert archive / North Dakota / Tornado Warnings in 2007
Tornado Warning 39, NWS Grand Forks, ND
NWS Grand Forks, ND issued this tornado warning at Aug 26, 2007, 8:41 PM CDT for Grand Forks County, North Dakota. It was in force for 64 min. 7 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, 8:41 PM CDT (01:41 UTC)
- Expired
- Aug 26, 2007, 9:45 PM CDT
- In force
- 64 min
- Issued by
- NWS Grand Forks, ND
- Area
- Counties, with a storm outline in the text
County Grand Forks County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 34 km from the middle of the area, began a volume at 01:44 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, 8:42 PM CDT | TORNADO 4 | 2 Wsw Northwood, ND | *** 1 FATAL, 18 INJ *** THIS TORNADO TOUCHED DOWN ABOUT 2.5 WSW OF NORTHWOOD. IT QUICKLY GREW IN SIZE AND STRENGTH AS IT CROSSED THE GOOSE RIVER...THE NORTHWOOD AIRPORT AND THEN COMPLETELY ENGULFED THE COMMUNITY OF NORTHWOOD ND. THE CENTRAL HOUSING AND BUSINES |
| Aug 26, 8:46 PM CDT | TORNADO | 1 W Northwood, ND | |
| Aug 26, 8:52 PM CDT | TORNADO | Northwood, ND | BETWEEN 850 PM AND 852 PM TORNADO STRUCK THE CITY OF NORTHWOOD. DAMAGE HAS BEEN REPORTED. |
| Aug 26, 9:15 PM CDT | HAIL 0.75 | 8 Sw Grand Forks, ND | HAIL IN MERRIFIELD |
| Aug 26, 9:18 PM CDT | TORNADO 1 | 9 Sw Grand Forks, ND | THIS TORNADO TRACKED FOR NEARLY 5 MILES TO AROUND 5 SSW OF GRAND FORKS BY 930 PM CDT. IT PASSED ABOUT A HALF MILE SOUTH OF MERRIFIELD ND AND WAS VIEWED BY MOTORISTS AS IT CROSSED INTERSTATE 29 NEAR MP 135. TREES WERE RAVAGED AND UPROOTED AT SEVERAL FARMSTEADS |
| Aug 26, 9:33 PM CDT | HAIL 0.75 | Grand Forks, ND | METEOROLOGY STUDENT ON CAMPUS OF UND |
| Aug 26, 9:33 PM CDT | HAIL 0.75 | Grand Forks, 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, 1.7 hours before the alert went out and 273 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 270141 TORFGF NDC035-270245- /O.NEW.KFGF.TO.W.0039.070827T0141Z-070827T0245Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 841 PM CDT SUN AUG 26 2007 THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A * TORNADO WARNING FOR... SOUTHERN GRAND FORKS COUNTY IN NORTHEAST NORTH DAKOTA... THIS INCLUDES THE CITY OF GRAND FORKS... * UNTIL 945 PM CDT * AT 840 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 3 MILES WEST OF NORTHWOOD...OR 29 MILES SOUTHWEST OF GRAND FORKS...MOVING TO THE EAST AT 30 MPH. * THE TORNADO WILL BE NEAR... HOLMES AT 910 PM CDT... THOMPSON AT 925 PM CDT... 8 MILES SOUTH OF GRAND FORKS AT 935 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 4790 9773 4769 9775 4768 9692 4797 9707 $$ JK/BB
5 follow-up statements
000 WWUS53 KFGF 270147 SVSFGF SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 846 PM CDT SUN AUG 26 2007 NDC035-270245- /O.CON.KFGF.TO.W.0039.000000T0000Z-070827T0245Z/ GRAND FORKS ND- 846 PM CDT SUN AUG 26 2007 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 945 PM CDT FOR SOUTHERN GRAND FORKS COUNTY... AT 844 PM CDT...LAW ENFORCEMENT REPORTED A TORNADO. THE TORNADO WAS LOCATED OVER NORTHWOOD...OR 27 MILES SOUTHWEST OF GRAND FORKS...MOVING TO THE EAST AT 30 MPH. PEOPLE IN NORTHWOOD SHOULD SEEK SHELTER IMMEDIATELY. * THE TORNADO WILL BE NEAR... NORTHWOOD AT 846 PM HOLMES BY 910 PM CDT... THOMPSON BY 925 PM CDT... IF YOU ARE IN THE PATH OF THIS TORNADO ABANDON CARS AND MOBILE HOMES FOR A STURDY BUILDING. A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT SUNDAY EVENING FOR NORTHWESTERN MINNESOTA. LAT...LON 4790 9773 4769 9775 4768 9692 4797 9707 $$ JK/BB
000 WWUS53 KFGF 270156 SVSFGF SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 854 PM CDT SUN AUG 26 2007 NDC035-270245- /O.CON.KFGF.TO.W.0039.000000T0000Z-070827T0245Z/ GRAND FORKS ND- 854 PM CDT SUN AUG 26 2007 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 945 PM CDT FOR SOUTHERN GRAND FORKS COUNTY... AT 852 PM CDT...LAW ENFORCEMENT REPORTED A TORNADO. THE TORNADO WAS LOCATED 2 MILES EAST OF NORTHWOOD...OR 24 MILES SOUTHWEST OF GRAND FORKS...MOVING TO THE EAST AT 25 MPH. AT 852 PM...LAW ENFORCEMENT REPORTED STORM DAMAGE DUE TO A TORNADO IN THE CITY OF NORTHWOOD. PEOPLE IN RURAL AREAS EAST OF NORTHWOOD SHOULD SEEK SHELTER IMMEDIATELY. THIS IS A VERY DANGEROUS SITUATION. * THE TORNADO WILL BE NEAR... HOLMES BY 915 PM CDT... THOMPSON BY 930 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 4790 9773 4769 9775 4768 9692 4797 9707 $$ JK/BB
000 WWUS53 KFGF 270205 SVSFGF SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 903 PM CDT SUN AUG 26 2007 NDC035-270245- /O.CON.KFGF.TO.W.0039.000000T0000Z-070827T0245Z/ GRAND FORKS ND- 903 PM CDT SUN AUG 26 2007 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 945 PM CDT FOR SOUTHERN GRAND FORKS COUNTY... AT 901 PM CDT...LAW ENFORCEMENT REPORTED A TORNADO. THE TORNADO WAS LOCATED 4 MILES EAST NORTHEAST OF NORTHWOOD...OR 22 MILES SOUTHWEST OF GRAND FORKS...MOVING TO THE EAST AT 20 MPH. PEOPLE IN RURAL AREAS EAST TO NORTHEAST OF NORTHWOOD SHOULD SEEK SHELTER IMMEDIATELY. THIS IS A VERY DANGEROUS SITUATION. * THE TORNADO WILL BE NEAR... HOLMES BY 920 PM CDT... THOMPSON BY 940 PM CDT... 7 MILES SOUTH OF GRAND FORKS BY 945 PM CDT... IF YOU ARE IN THE PATH OF THIS TORNADO ABANDON CARS AND MOBILE HOMES FOR A STURDY BUILDING. A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT SUNDAY EVENING FOR NORTHWESTERN MINNESOTA. LAT...LON 4790 9773 4769 9775 4768 9692 4797 9707 $$ JK/BB
000 WWUS53 KFGF 270217 SVSFGF SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 915 PM CDT SUN AUG 26 2007 NDC035-270245- /O.CON.KFGF.TO.W.0039.000000T0000Z-070827T0245Z/ GRAND FORKS ND- 915 PM CDT SUN AUG 26 2007 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 945 PM CDT FOR SOUTHERN GRAND FORKS COUNTY... AT 914 PM CDT...LAW ENFORCEMENT REPORTED A TORNADO. THE TORNADO WAS LOCATED 4 MILES NORTH OF HOLMES...OR 15 MILES SOUTHWEST OF GRAND FORKS...MOVING TO THE EAST AT 30 MPH. PEOPLE IN RURAL AREAS FROM 8 MILES EAST OF NORTHWOOD TO THOMPSON SHOULD SEEK SHELTER IMMEDIATELY. THIS IS A VERY DANGEROUS SITUATION. * THE TORNADO WILL BE NEAR... THOMPSON BY 930 PM CDT... 7 MILES SOUTH OF GRAND FORKS BY 935 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 4790 9773 4769 9775 4768 9692 4797 9707 $$ JK/BB
000 WWUS53 KFGF 270231 SVSFGF SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 929 PM CDT SUN AUG 26 2007 NDC035-270245- /O.CON.KFGF.TO.W.0039.000000T0000Z-070827T0245Z/ GRAND FORKS ND- 929 PM CDT SUN AUG 26 2007 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 945 PM CDT FOR SOUTHERN GRAND FORKS COUNTY... AT 927 PM CDT...LAW ENFORCEMENT REPORTED A TORNADO. THE TORNADO WAS LOCATED 4 MILES NORTHEAST OF HOLMES...OR 13 MILES SOUTHWEST OF GRAND FORKS...MOVING TO THE EAST AT 25 MPH. PEOPLE IN RURAL AREAS FROM 12 MILES WEST OF THOMPSON TO THOMPSON SHOULD SEEK SHELTER IMMEDIATELY. THIS IS A VERY DANGEROUS SITUATION. * THE TORNADO WILL BE NEAR... THOMPSON BY 945 PM CDT... IF YOU ARE IN THE PATH OF THIS TORNADO ABANDON CARS AND MOBILE HOMES FOR A STURDY BUILDING. A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT SUNDAY EVENING FOR NORTHWESTERN MINNESOTA. LAT...LON 4790 9773 4769 9775 4768 9692 4797 9707 $$ JK/BB
The office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 26, 7:17 PM CDT | Tornado Warning | FGF | Pembina, Walsh | 58 min |
| 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, 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.