Alert archive / Minnesota / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 157, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Jul 25, 2000, 3:04 PM CDT for Otter Tail County, Minnesota. It was in force for 31 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
- Jul 25, 2000, 3:04 PM CDT (20:04 UTC)
- Expired
- Jul 25, 2000, 3:35 PM CDT
- In force
- 31 min
- Issued by
- NWS Grand Forks, ND
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Otter Tail County, MN
The radar
The Fargo/Grand Forks radar (KMVX), 164 km from the middle of the area, began a volume at 20:04 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 |
|---|---|---|---|
| Jul 25, 3:10 PM CDT | Hail 1.75 | Perham, MN |
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
Minneapolis, MN (KMPX), launched 12:00Z, 8.1 hours before the alert went out and 251 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
- 158 J/kg
- Mixed-layer CIN
- -126 J/kg
- Mixed-layer LCL
- 797 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 0 m²/s²
- 0-3 km storm-relative helicity
- -84 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
289 WUUS53 KFGF 252004 SVRFAR MNC111-252035- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE EASTERN ND-GRAND FORKS 304 PM CDT TUE JUL 25 2000 THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHEASTERN OTTER TAIL COUNTY IN WEST CENTRAL MINNESOTA... * UNTIL 335 PM CDT * AT 258 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 3 MILES NORTHWEST OF BIG MCDONALD LAKE...OR ABOUT 14 MILES SOUTH OF DETROIT LAKES...MOVEMENT WAS TO THE EAST AT 25 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... DENT AT 305 PM CDT... PERHAM AT 320 PM CDT... BUTLER AT 335 PM CDT... REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM CDT TUESDAY EVENING FOR CENTRAL MINNESOTA. LAT...LON 4669 9593 4652 9588 4646 9519 4671 9521 $$ VOELKER 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 Jul 25, 2:55 PM CDT, 9 minutes earlier.
Area forecast discussion, Jul 25, 2:55 PM CDT, 9 minutes before
FORECAST DISCUSSION FOR EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 255 PM CDT TUE JUL 25 2000 FORECAST PROBLEM FOR TONIGHT IS PCPN. LATEST VIS SATELLITE IMAGERY SHOWS VARIETY OF CLOUD DECKS OVER CWFA. KMVX HAS TSRAGR ALONG THE COLD FRONT ALONG A BDE-DTL LINE AND OTHER TSRA IN NE ND. LATEST MSAS SFC PRESSURE ANALYSIS HAS LOW PRESSURE TROF EXTENDING THROUGH NW MN INTO SE ND. WHEN COMPARING CURRENT MSAS SFC PLOT TO MODELS...ETA MATCHES BEST WITH AVN ALSO PRETTY CLOSE. SFC TROF AND UPPER LEVEL TROF CONTINUE MOVING E OVERNIGHT...WITH BEST UVV MOVING E OF CWFA BY MIDNIGHT. AS UPPER LEVEL TROF AND SHORTWAVE MOVE THROUGH...SFC HEATING HAS BEEN ADDING TO DESTABLIZATION ALONG SFC COLD FRONT...AND CURRENT LI'S IN THE -4 TO -10 RANGE. THEREFORE...EXPECT CONTINUED POTENTIAL FOR SVR IN FAR E TO SE CWFA INTO THIS EVENING. CONSEQUENTLY...WILL NOT CLEAR ANY COUNTIES FROM SVR WATCH AT THIS TIME. FORECAST PROBLEM FOR SECOND THROUGH FOURTH PERIODS IS TEMPS. SFC TROF MOVES E OF CWFA BY 12Z WED AS SFC HIGH PRESSURE RIDGE BUILDS IN...AND UPPER LEVEL RIDGE MAINTAINS ITSELF OVER N PLAINS. AS A RESULT...NO PCPN EXPECTED WITH TEMPS HOLDING AROUND NORMAL. EXTENDED...MODELS CONTINUE TO ADVERTISE 5H RIDGE FROM SOUTHWESTERN CONUS NORTH INTO THE WESTERN HIGH PLAINS. PERIODIC PIECES OF SHORTWAVE ENERGY EJECTING FROM SEMI-PERMANENT TROUGH VICINITY OF PACIFIC NW/BC COAST SHOULD DIVE SOUTHEAST ON AFOREMENTIONED DOWNWIND SIDE OF RIDGE INTO NORTHERN PLAINS. MANY UNCERTAINTIES EXIST WITH TIMING AND STRENGTH OF FEATURES. WITH MODEL TRACK RECORDS USUALLY NOTORIOUSLY POOR IN THESE TYPE OF SITUATIONS...WILL INSERT SLIGHT CHANCE OF THUNDER ACROSS THE SOUTH ON FRIDAY. OTHERWISE...WILL RIDE WITH CONTINUITY AND LEAVE REMAINDER OF PERIOD DRY WITH NEAR SEASONAL TEMPERATURES. .FGF...SVR THUNDERSTORM WATCH #618 UNTIL 8 PM CDT FOR BELTRAMI... OTTER TAIL...HUBBARD AND WADENA COUNTIES. NG/BERG
In the hours before
Special weather statement, Jul 25, 11:53 AM CDT, 3 hours 11 minutes before
MNZ017-024-028-030>032-040-251850- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 1153 AM CDT TUE JUL 25 2000 ...SEVERE THUNDERSTORMS POSSIBLE ACROSS PORTIONS OF WEST CENTRAL MINNESOTA THIS AFTERNOON... SYNOPSIS...MOIST AND UNSTABLE AIR AHEAD OF A TROUGH OF LOW PRESSURE COULD TRIGGER SCATTERED SEVERE THUNDERSTORMS THIS AFTERNOON AND EVENING. AREA OF CONCERN...A SLIGHT RISK OF SEVERE THUNDERSTORMS ARYE POSSIBLE THIS AFTERNOON ALONG AND EAST OF A NORCROSS TO FERGUS FALLS TO DETROIT LAKES TO WASKISH LINE. TIME...START TIME AFTER 1 PM UNTIL 8 PM. TYPE OF HAZARD...LARGE HAIL AND STRONG WIND. DJK NNNN
Local storm report, Jul 25, 2:46 PM CDT, 18 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE EASTERN NORTH DAKOTA/GRAND FORKS
246 PM CDT TUE JUL 25 2000
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
1255 PM 30 E MAHNOMEN MN 1 INCH HAIL
07/25/00 CLEARWATER
0115 PM LAKE ITASCA MN .75 INCH HAIL
07/25/00 CLEARWATER
0127 PM 10 E HAWLEY MN TORNADO
07/25/00 BECKER
0130 PM BEMIDJI MN 1 INCH HAIL
07/25/00 BELTRAMI
0141 PM ROLLAG MN 2.75 INCH HAIL
07/25/00 CLAY
0230 PM WAUBUN MN .75 INCH HAIL
07/25/00 MAHNOMEN
0240 PM SHOREHAM MN .75 INCH HAIL
07/25/00 BECKER
NNNNThe office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 24, 11:43 PM CDT | Severe Thunderstorm Warning | FGF | Wilkin | 32 min |
| Jul 25, 12:11 AM CDT | Severe Thunderstorm Warning | FGF | Otter Tail | 29 min |
| Jul 25, 12:35 PM CDT | Severe Thunderstorm Warning | FGF | Beltrami, Clearwater | 30 min |
| Jul 25, 12:40 PM CDT | Severe Thunderstorm Warning | FGF | Mahnomen | 30 min |
| Jul 25, 1:17 PM CDT | Severe Thunderstorm Warning | FGF | Becker, Clay | 28 min |
| Jul 25, 1:48 PM CDT | Severe Thunderstorm Warning | FGF | Hubbard | 32 min |
| Jul 25, 2:37 PM CDT | Severe Thunderstorm Warning | FGF | Becker, Otter Tail | 28 min |
| Jul 25, 3:42 PM CDT | Severe Thunderstorm Warning | FGF | Otter Tail | 28 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 2000Every severe thunderstorm warning in 2000
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; radar from the NEXRAD Level II archive.