Alert archive / Minnesota / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 59, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Jun 18, 2001, 1:37 AM CDT for Wilkin County, Minnesota; Richland County, North Dakota. It was in force for 38 min. 1 report came from inside the area while it was in force.
The area
The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.
The facts
- Issued
- Jun 18, 2001, 1:37 AM CDT (06:37 UTC)
- Expired
- Jun 18, 2001, 2:15 AM CDT
- In force
- 38 min
- Issued by
- NWS Grand Forks, ND
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
Counties Wilkin County, MN, Richland County, ND
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 18, 2:00 AM CDT | Thunderstorm Wind 61 E | Fergus Falls, MN | The strong wind knocked down trees and power lines. The city of Fergus Falls was without power for several hours. 30 to 40 homes sustained damage and many signs were knocked over. |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The nearest sounding before it
Aberdeen, SD (KABR), launched 00:00Z, 6.6 hours before the alert went out and 214 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
- -453 J/kg
- Mixed-layer LCL
- 1102 m above ground
- 0-6 km bulk shear
- 66 kt
- 0-1 km storm-relative helicity
- 97 m²/s²
- 0-3 km storm-relative helicity
- 520 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS53 KFGF 180637 SVRFAR MNC167-NDC077-180715- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE EASTERN ND-GRAND FORKS 137 AM CDT MON JUN 18 2001 THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHERN RICHLAND COUNTY IN SOUTHEAST NORTH DAKOTA... NORTHWESTERN WILKIN COUNTY IN WEST CENTRAL MINNESOTA... * UNTIL 215 AM CDT * AT 135 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 6 MILES SOUTHWEST OF WALCOTT...OR ABOUT 25 MILES NORTHWEST OF WAHPETON...MOVEMENT WAS TO THE EAST AT 35 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... WALCOTT AT 140 AM CDT... COLFAX AT 145 AM CDT... CHRISTINE AT 155 AM CDT... ABERCROMBIE AT 205 AM CDT... REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. LAT...LON 4657 9716 4639 9715 4641 9641 4661 9655 $$ DTR NNNN
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Grand Forks, ND wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 17, 8:20 PM CDT, 5 hours 17 minutes earlier.
Area forecast discussion, Jun 17, 8:20 PM CDT, 5 hours 17 minutes before
FORECAST DISCUSSION FOR EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS 820 PM CDT SUN JUN 17 2001 FORECAST CHALLENGE OVERNIGHT WILL BE CONVECTION SFC LOW IS SLOWLY DEEPENING THIS EVENING OVER SOUTHWEST SD...WITH SFC WARMFRONT EXTENDING EAST INTO SOUTHERN MN. TWO CONVECTIVE CLUSTERS ARE DEVELOPING ACROSS ND AND SD ATTM...IN RESPONSE TO STRENGTHENING LOW LEVEL JET AND 55KT 500 MB SPEED MAX. IMPRESSIVE MOISTURE ADVECTION WILL COMMENCE ACROSS SOUTHEAST ND AFTER 03Z...WITH 30KT 925MB JET...AS DEWPOINTS AT 850MB INCREASE FROM AROUND +2C AT 00Z TO +12C AT 06Z. SHOWALTERS ALSO INCREASE TO AROUND -5C IN SOUTHEAST ND AROUND 06Z. FURTHER NORTH...MOISTURE ADVECTION ALSO LOOKS FAIRLY IMPRESSIVE...WITH MORE DYNAMICS CLOSER TO 100KT SPEED MAX AT 300MB AND ASSOCIATED UPPER LEVEL DIVERGENCE. IN ADDITION...A COLD FRONT NOW ENTERING WESTERN ND WILL ADD SOME SFC BASED CONVERGENCE AIDING THUNDERSTORM DEVELOPMENT INTO THE RED RIVER VALLEY AROUND 06Z. STORMS WILL DEVELOP LATE INTO THE NORTHEAST FA...AS INSTABILITY HERE IS ALSO WEAKER THAN REST OF FA. WILL THEREFORE GO SCATTERED STORMS HERE LATE...WITH LIKELY POPS ELSEWHERE. SEVERE THREAT IS ALSO POSSIBLE...ESPECIALLY ALONG A VALLEY CITY TO FFM LINE NEAR BEST INSTABILITY AND MOISTURE. DON/T FEEL THAT THIS WARRANTS A MENTION IN ZONES THOUGH...WITH BEST LOW LEVEL JET FOCUSED INTO SOUTHERN MN/IOWA AFTER 06Z. A FEW SEVERE HAIL/WIND REPORTS ARE POSSIBLE LATER TONIGHT AS STRONG MCS MOVES ACROSS SOUTHEAST ND INTO WEST CENTRAL MN AFTER 04Z...BUT NOT ENOUGH TO WARRANT A MENTION IN THE ZONES. REFER TO NEW SWODY1 FOR FURTHER DISCUSSION. .FGF...NONE. KELLENBENZ
The office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 18, 1:49 AM CDT | Severe Thunderstorm Warning | FGF | Otter Tail | 41 min |
| Jun 18, 2:29 AM CDT | Severe Thunderstorm Warning | FGF | Otter Tail | 31 min |
| Jun 18, 3:01 AM CDT | Severe Thunderstorm Warning | FGF | Otter Tail | 19 min |
| Jun 18, 3:22 AM CDT | Severe Thunderstorm Warning | FGF | Otter Tail | 28 min |
| Jun 18, 12:05 AM CDT | Severe Thunderstorm Warning | FGF | Ransom | 40 min |
| Jun 18, 12:27 AM CDT | Severe Thunderstorm Warning | FGF | Cass | 48 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 2001Severe Thunderstorm Warnings in North Dakota, 2001Every severe thunderstorm warning in 2001
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.