Alert archive / Minnesota / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 367, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Aug 26, 2001, 6:42 PM CDT for Red Lake County, Minnesota. It was in force for 33 min. 2 reports 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
- Aug 26, 2001, 6:42 PM CDT (23:42 UTC)
- Expired
- Aug 26, 2001, 7:15 PM CDT
- In force
- 33 min
- Issued by
- NWS Grand Forks, ND
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Red Lake County, MN
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 26, 6:50 PM CDT | Hail 0.88 | Plummer, MN | |
| Aug 26, 7:00 PM CDT | Hail 0.75 | Brooks, 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
International Fa, MN (KINL), launched 12:00Z, 11.7 hours before the alert went out and 219 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2826 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- -24 m²/s²
- 0-3 km storm-relative helicity
- 71 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
473 WUUS53 KFGF 262342 SVRFAR MNC125-270015- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE EASTERN ND-GRAND FORKS 642 PM CDT SUN AUG 26 2001 THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CENTRAL RED LAKE COUNTY IN NORTHWEST MINNESOTA. * UNTIL 715 PM CDT. * AT 638 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 3 MILES SOUTHWEST OF PLUMMER...OR ABOUT 16 MILES SOUTH OF THIEF RIVER FALLS...MOVEMENT WAS TO THE SOUTHEAST AT 25 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... BROOKS AT 655 PM. REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. LAT...LON 4796 9605 4789 9626 4777 9614 4778 9584 $$ 55 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 Aug 26, 3:21 PM CDT, 3 hours 21 minutes earlier.
Area forecast discussion, Aug 26, 3:21 PM CDT, 3 hours 21 minutes before
FORECAST DISCUSSION FOR EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
321 PM CDT SUN AUG 26 2001
...FORECAST PROBLEM TONIGHT IS SVR AND HEAVY RAIN POTENTIAL...
.CURRENT CONDITIONS...18Z SFC ANALYSIS SHOWED LOW CENTER OVER ABR
WITH WARM FRONT EXTENDING TO VICINITY OF AXN. INVERTED TROF HAS
JUST PUSHED EAST OF DVL AND JMS AND APPEARS TO HAVE SLOWED DOWN.
BEST 3 HOUR PRESSURE FALLS WOULD HAVE LOW CENTER TRACK INTO FFM
VICINITY BY 00Z. SATELLITE AND RADAR IMAGERY SHOWING TCU LINE
FORMING ALONG INVERTED TROF ATTM.
.SHORT TERM...TSTMS EXPECTED TO FIRE ALONG INVERTED TROF WITH A
SPLIT SVR REGIME. LARGE HAIL IS LIKELY ALONG THE INTERNATIONAL
BORDER WHERE FREEZING LEVELS HAVE COME DOWN SLIGHTLY. A TORNADIC
THREAT STILL REMAINS IN THE VICINITY OF THE WARM FRONT ALONG THE
SOUTHERN TIER OF THE FA WHERE GOOD SPEED AND DIRECTIONAL SHEAR HAVE
PRODUCED HELICITY VALUES IN THE 300-500 M2/S2 RANGE. AS THE TROF
MOVES EASTWARD TONIGHT...THE SVR THREAT SHOULD END DURING THE
03Z-05Z TIME FRAME. HEAVY RAINFALL OVER SATURATED GROUND REMAINS A
THREAT FOR THE SOUTHERN ZONES. DUE TO THE TROF MOVEMENT...WILL TRIM
FAR WESTERN ZONES FROM THE WATCH AND END THE WATCH AT 04Z. RAPIDLY
FALLING SFC DEW POINTS ARE AGAIN ENTERING CENTRAL ND AND SHOULD
SPREAD EASTWARD OVERNIGHT.
.MID TERM...QUIET PERIOD EXPECTED THROUGH TUESDAY AS HIGH PRESSURE
DOMINATES THE ENTIRE NORTHERN PLAINS. 850 MB COLD ADVECTION IS NOT
REAL STRONG OVER THE FA...THUS TEMPERATURES THROUGH THE PERIOD SHOULD
REMAIN NEAR NORMAL. RETURN FLOW BEGINS TO INCREASE ON TUESDAY AHEAD
OF STRONGER COLD FRONT PUSHING DOWN TUESDAY NIGHT. SIGNIFICANT TSTM
EVENT EXPECTED WITH FROPA AS IT MOVES THROUGH.
.EXTENDED...
MODELS AGAIN HAVE GOOD CONTINUITY AND ARE CONSISTENT WITH OVERALL
DETAILS. FRONTAL PASSAGE STILL LOOKS ON TARGET FOR TUE
NIGHT/WED...ALONG WITH ANOTHER ROUND OF CONVECTION.
THEREAFTER...HIGH PRESSURE SHOULD BUILD IN AS TEMPS COOL TO NEAR OR
SLIGHTLY BELOW NORMAL. BY NEXT WEEKEND...HIGH SHIFTS EAST UNDER REX
TYPE BLOCK CONFIGURATION...AS TEMPS WARM TO NEAR OR SLIGHTLY ABOVE
NORMAL WITH DRY WEATHER PERSISTING.
COORD WITH SPC...THANKS.
.FGF...FLASH FLOOD WATCH THIS EVENING FOR NDZ030-039-053 AND
MNZ002-003-027>032-040
BRAMER/KELLENBENZThe office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 26, 9:14 AM CDT | Severe Thunderstorm Warning | FGF | Wilkin | 46 min |
| Aug 26, 9:18 AM CDT | Severe Thunderstorm Warning | FGF | Clay, Norman | 42 min |
| Aug 26, 4:56 PM CDT | Severe Thunderstorm Warning | FGF | Marshall | 49 min |
| Aug 26, 5:50 PM CDT | Severe Thunderstorm Warning | FGF | Pennington | 40 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 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.