Alert archive / North Dakota / Tornado Warnings in 2007
Tornado Warning 8, NWS Grand Forks, ND
NWS Grand Forks, ND issued this tornado warning at May 30, 2007, 5:38 PM CDT for Cass County, North Dakota. It was in force for 38 min. 6 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
- May 30, 2007, 5:38 PM CDT (22:38 UTC)
- Expired
- May 30, 2007, 6:16 PM CDT
- In force
- 38 min
- Issued by
- NWS Grand Forks, ND
- Area
- Counties, with a storm outline in the text
County Cass County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 49 km from the middle of the area, began a volume at 22:40 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 |
|---|---|---|---|
| May 30, 5:50 PM CDT | TORNADO 1 | 1 S Page, ND | SKYWARN SPOTTER REPORTED TWO FUNNELS NEAR PAGE. ONE TOUCHED DOWN JUST SOUTH OF PAGE...LIFTED BRIEFLY WHILE OVER PAGE THEN TOUCHED DOWN REPEATEDLY AS IT TRAVELED NORTHWEST FROM PAGE. TORNADO TRACKED FOR AROUND 5 MILES TO THE NORTHWEST UNTIL ABOUT 6 PM...LIFTING |
| May 30, 5:50 PM CDT | TORNADO | 3 Nw Page, ND | SPOTTER REPORTED TWO FUNNELS NEAR PAGE THAT TOUCHED THE GROUND PICKING DEBRIS OFF THE GROUND AND THEN LIFTING. |
| May 30, 5:50 PM CDT | TORNADO | Page, ND | TORNADO CAUSED DAMAGE TO AN AUGER AND MOVED A TRAILER A FEW FEET ON THE WEST SIDE OF PAGE. TIME ESTIMATED. |
| May 30, 5:55 PM CDT | TSTM WND GST 60 | 3 N Page, ND | STRONG REAR FLANK DOWNDRAFT WINDS MOVED THROUGH THE COMMUNITY OF PAGE SEVERAL MINUTES AFTER A TORNADO HAD BRUSHED THE WEST END OF TOWN. |
| May 30, 5:55 PM CDT | TSTM WND GST 60 | Page, ND | STRONG REAR FLANK DOWNDRAFT WINDS MOVED THROUGH THE COMMUNITY OF PAGE SEVERAL MINUTES AFTER A TORNADO HAD BRUSHED THE WEST END OF TOWN. |
| May 30, 6:00 PM CDT | TORNADO | 3 N Page, ND | REPORT OF TORNADO SKIPPING ALONG THE GROUND 3 MILES NORTH OF PAGE...SPOTTER WAS LOOKING WEST. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 12:00Z, 10.6 hours before the alert went out and 242 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
- 19 J/kg
- Mixed-layer CIN
- -103 J/kg
- Mixed-layer LCL
- 909 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 9 m²/s²
- 0-3 km storm-relative helicity
- 51 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 KFGF 302238 TORFGF NDC017-302345- /O.NEW.KFGF.TO.W.0008.070530T2238Z-070530T2345Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 538 PM CDT WED MAY 30 2007 THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A * TORNADO WARNING FOR... NORTHWESTERN CASS COUNTY IN SOUTHEAST NORTH DAKOTA... * UNTIL 645 PM CDT * AT 535 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 4 MILES NORTH OF AYR...OR 27 MILES NORTHEAST OF VALLEY CITY...MOVING TO THE NORTHWEST AT 40 MPH. * THE TORNADO WILL BE NEAR... PAGE AT 550 PM CDT... IF YOU ARE IN THE PATH OF THIS TORNADO ABANDON CARS AND MOBILE HOMES FOR A STURDY BUILDING. LAT...LON 4705 9753 4713 9745 4724 9757 4713 9770 $$ PJS/DR
3 follow-up statements
000 WWUS53 KFGF 302258 SVSFGF SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 557 PM CDT WED MAY 30 2007 NDC017-302345- /O.CON.KFGF.TO.W.0008.000000T0000Z-070530T2345Z/ CASS ND- 557 PM CDT WED MAY 30 2007 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 645 PM CDT FOR EXTREME NORTHWESTERN CASS COUNTY IN SOUTHEAST NORTH DAKOTA... AT 552 PM CDT...A MEMBER OF PAGE AMBULANCE SERVICE REPORTED A TORNADO 2 MILES WEST AND ONE MILE NORTH OF PAGE. THE TORNADO WAS LOCATED 3 MILES SOUTH OF COLGATE...OR 26 MILES NORTHEAST OF VALLEY CITY...MOVING TO THE NORTHWEST AT 30 MPH. DO NOT OUTRUN A TORNADO IN YOUR CAR. LEAVE YOUR CAR AND GO TO A STRONG BUILDING OR SEEK SHELTER IN A DITCH OR LOW SPOT. LAT...LON 4716 9766 4721 9758 4725 9766 4721 9771 $$ PJS
000 WWUS53 KFGF 302312 SVSFGF SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 611 PM CDT WED MAY 30 2007 NDC017-302345- /O.CON.KFGF.TO.W.0008.000000T0000Z-070530T2345Z/ CASS ND- 611 PM CDT WED MAY 30 2007 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 645 PM CDT FOR EXTREME NORTHWESTERN CASS COUNTY IN SOUTHEAST NORTH DAKOTA... AT 600 PM CDT...THE PUBLIC REPORTED A TORNADO. THE TORNADO WAS LOCATED 3 MILES NORTH AND 2 MILES WEST OF PAGE. THE PUBLIC WAS VIEWING THE TORNADO SKIPPING ALONG THE GROUND TOUCHING DOWN BRIEFLY AND THEN LIFTING BACK UP. TORNADO WAS MOVING TO THE NORTHWEST AT 20 MPH. DO NOT OUTRUN A TORNADO IN YOUR CAR. LEAVE YOUR CAR AND GO TO A STRONG BUILDING OR SEEK SHELTER IN A DITCH OR LOW SPOT. LAT...LON 4716 9766 4721 9758 4725 9766 4721 9771 $$ DTR
000 WWUS53 KFGF 302316 SVSFGF SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 616 PM CDT WED MAY 30 2007 NDC017-302326- /O.CAN.KFGF.TO.W.0008.000000T0000Z-070530T2345Z/ CASS ND- 616 PM CDT WED MAY 30 2007 ...THE TORNADO WARNING FOR NORTHWESTERN CASS COUNTY IN SOUTHEAST NORTH DAKOTA IS CANCELLED... AT 616 PM CDT...THE TORNADO HAS DISSIPATED IN EXTREME NORTHWESTERN CASS COUNTY. SO THE WARNING HAS BEEN CANCELLED. LAT...LON 4716 9766 4721 9758 4725 9766 4721 9771 $$ PJS
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.