Alert archive / North Dakota / Tornado Warnings in 2005
Tornado Warning 9, NWS Grand Forks, ND
NWS Grand Forks, ND issued this tornado warning at May 20, 2005, 4:56 PM CDT for Cass County, North Dakota. It was in force for 64 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 20, 2005, 4:56 PM CDT (21:56 UTC)
- Expired
- May 20, 2005, 6:00 PM CDT
- In force
- 64 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), 47 km from the middle of the area, began a volume at 21:58 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 nearest sounding before it
Bismarck Municip, ND (KBIS), launched 12:00Z, 9.9 hours before the alert went out and 257 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
- 184 J/kg
- Mixed-layer CIN
- -180 J/kg
- Mixed-layer LCL
- 1509 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 6 m²/s²
- 0-3 km storm-relative helicity
- 109 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 WFUS53 KFGF 202156 TORFGF NDC017-202300- /O.NEW.KFGF.TO.W.0009.050520T2156Z-050520T2300Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS 456 PM CDT FRI MAY 20 2005 THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A * TORNADO WARNING FOR... NORTHERN CASS COUNTY IN SOUTHEAST NORTH DAKOTA * UNTIL 600 PM CDT * AT 453 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM WITH STRONG ROTATION 4 MILES SOUTHEAST OF PAGE...OR 25 MILES NORTHEAST OF VALLEY CITY...MOVING TO THE EAST AT 25 MPH. * THE TORNADO IS EXPECTED TO BE NEAR... ERIE AT 510 PM ARTHUR AT 525 PM AMENIA AT 530 PM GARDNER AT 555 PM IF YOU ARE IN THE PATH OF THIS TORNADO ABANDON CARS AND MOBILE HOMES FOR A STURDY BUILDING. LAT...LON 4720 9760 4705 9765 4694 9700 4716 9694 $$ JDS
4 follow-up statements
000 WWUS53 KFGF 202220 SVSFGF SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS 519 PM CDT FRI MAY 20 2005 NDC017-202300- /O.CON.KFGF.TO.W.0009.000000T0000Z-050520T2300Z/ CASS ND- 519 PM CDT FRI MAY 20 2005 ...A TORNADO WARNING CONTINUES UNTIL 600 PM CDT FOR SOUTHEASTERN CASS COUNTY... AT 514 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM WITH STRONG ROTATION. THE TORNADO WAS LOCATED NEAR WHEATLAND...OR 25 MILES WEST OF FARGO...MOVING TO THE SOUTHEAST AT 25 MPH. THE TORNADO WILL BE NEAR... CASSELTON BY 525 PM CDT... DURBIN AND MAPLETON BY 540 PM CDT... 6 MILES NORTHEAST OF DAVENPORT BY 550 PM CDT... IF YOU ARE IN THE PATH OF THIS TORNADO ABANDON CARS AND MOBILE HOMES FOR A STURDY BUILDING. LAT...LON 4698 9735 4684 9745 4666 9698 4684 9685 $$ SMITH
000 WWUS53 KFGF 202224 SVSFGF SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS 523 PM CDT FRI MAY 20 2005 NDC017-202300- /O.CON.KFGF.TO.W.0009.000000T0000Z-050520T2300Z/ CASS ND- 523 PM CDT FRI MAY 20 2005 ...A TORNADO WARNING CONTINUES UNTIL 600 PM CDT FOR SOUTHEASTERN CASS COUNTY... AT 519 PM CDT...WEATHER SPOTTERS REPORTED A TORNADO 2 MILES EAST EMBDEN. TORNADO MOVING SOUTHEAST AT 25 MPH. THE TORNADO WILL BE NEAR... DURBIN AND MAPLETON BY 540 PM CDT... 6 MILES NORTHEAST OF DAVENPORT BY 550 PM CDT... IF YOU ARE IN THE PATH OF THIS TORNADO ABANDON CARS AND MOBILE HOMES FOR A STURDY BUILDING. LAT...LON 4698 9735 4684 9745 4666 9698 4684 9685 $$ JDS
000 WWUS53 KFGF 202234 SVSFGF SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS 532 PM CDT FRI MAY 20 2005 NDC017-202300- /O.CON.KFGF.TO.W.0009.000000T0000Z-050520T2300Z/ CASS ND- 532 PM CDT FRI MAY 20 2005 ...A TORNADO WARNING CONTINUES UNTIL 600 PM CDT FOR CENTRAL CASS COUNTY... AT 527 PM CDT...A SEVERE THUNDERSTORM WITH STRONG ROTATION WAS LOCATED 5 MILES SOUTHWEST OF CASSELTON...OR 22 MILES WEST OF FARGO...MOVING TO THE SOUTHEAST AT 25 MPH. AT 519 PM A TORNADO WAS REPORTED 2 MILES OF EMBDEN. THE TORNADO WILL BE NEAR... DURBIN BY 545 PM CDT... THIS IS A DANGEROUS STORM. IF YOU ARE IN THE PATH OF THIS TORNADO ABANDON CARS AND MOBILE HOMES FOR A STURDY BUILDING. LAT...LON 4696 9732 4684 9745 4667 9719 4679 9696 $$ JDS/KENNEDY
000 WWUS53 KFGF 202246 SVSFGF SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS 545 PM CDT FRI MAY 20 2005 NDC017-202300- /O.CON.KFGF.TO.W.0009.000000T0000Z-050520T2300Z/ CASS ND- 545 PM CDT FRI MAY 20 2005 ...A TORNADO WARNING CONTINUES UNTIL 600 PM CDT FOR SOUTHEASTERN CASS COUNTY... AT 540 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM WITH STRONG ROTATION. THE TORNADO WAS LOCATED 3 MILES SOUTH OF DURBIN...OR 18 MILES SOUTHWEST OF FARGO...MOVING TO THE SOUTHEAST AT 40 MPH. THE TORNADO WILL BE NEAR... DAVENPORT AND 9 MILES SOUTHWEST OF HORACE BY 550 PM CDT... 9 MILES SOUTHWEST OF HICKSON BY 600 PM CDT... NEAR KINDRED AT 555 PM CDT IF YOU ARE IN THE PATH OF THIS TORNADO ABANDON CARS AND MOBILE HOMES FOR A STURDY BUILDING. LAT...LON 4707 9706 4689 9742 4664 9727 4664 9681 $$ JDS/KENNEDY
The office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 20, 4:09 PM CDT | Tornado Warning | FGF | Steele | 37 min |
| May 20, 4:24 PM CDT | Tornado Warning | FGF | Traill | 51 min |
| May 20, 4:35 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks | 40 min |
| May 20, 4:39 PM CDT | Tornado Warning | FGF | Grand Forks | 36 min |
| May 20, 5:46 PM CDT | Tornado Warning | FGF | Richland | 44 min |
| May 20, 5:55 PM CDT | Tornado Warning | FGF | Cass | 33 min |
| May 20, 6:25 PM CDT | Tornado Warning | FGF | Barnes | 50 min |
| May 20, 6:30 PM CDT | Tornado Warning | FGF | Richland | 60 min |
Nearby
Tornado Warnings in North Dakota, 2005Every tornado warning in 2005Tornadoes in 2005
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.