Alert archive / Minnesota / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 26, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at May 28, 2002, 3:35 PM CDT for Norman County, Minnesota. It was in force for 25 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 28, 2002, 3:35 PM CDT (20:35 UTC)
- Expired
- May 28, 2002, 4:00 PM CDT
- In force
- 25 min
- Issued by
- NWS Grand Forks, ND
- Area
- Counties, with a storm outline in the text
County Norman County, MN
The radar
The Fargo/Grand Forks radar (KMVX), 69 km from the middle of the area, began a volume at 20:36 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.
Did it verify
Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The nearest sounding before it
International Fa, MN (KINL), launched 12:00Z, 8.6 hours before the alert went out and 281 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
- 2041 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 59 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.
000 WUUS53 KFGF 282035 SVRFAR MNC107-282100- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS 334 PM CDT TUE MAY 28 2002 THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHERN NORMAN COUNTY IN NORTHWEST MINNESOTA. * UNTIL 400 PM CDT. * AT 330 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 7 MILES WEST OF BORUP...OR ABOUT 23 MILES NORTH OF FARGO...MOVEMENT WAS TO THE EAST AT 25 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... ADA AT 340 PM... BORUP AT 345 PM AND SYRE AT 400 PM. REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. LAT...LON 4729 9674 4717 9678 4716 9622 4729 9607 06 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 May 28, 2:50 PM CDT, 45 minutes earlier.
Area forecast discussion, May 28, 2:50 PM CDT, 45 minutes before
FORECAST DISCUSSION FOR EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 250 PM CDT TUE MAY 28 2002 FORECAST CHALLENGE CONCERNS EARLY PCPN CHANCES AND TEMPERATURES. MODELS IN REASONABLE AGREEMENT WITH OVERALL PATTERN THROUGH PERIOD. IN THE EARLY GOING PREFERRED THE AVN SFC FEATURES HOWEVER AVN NOT PICKING UP VERY WELL ON SECONDARY SHORT WAVE DROPPING THROUGH SASKACHEWAN WHICH THE ETA COVERED SO WILL USE MIX FOR GRIDS. SCATTERED CONVECTION CONTINUES AHEAD SW-NE BOUNDARY OVER EASTERN ND INTO N CENTRAL MN. CU BAND HAS RECENTLY BEEN BACKBUILDING THROUGH SE ND ALONG THIS BOUNDARY. AM ALSO SEEING DEVELOPING CU FIELD LIKELY AS A RESULT OF OUTFLOW FROM CONVECTION FARTHER SOUTH FROM EXTREME SE ND INTO WEST CENTRAL MN. POSSIBILITY EXISTS FOR THESE BOUNDARIES TO INTERACT LATER THIS AFTERNOON AS THIS AREA HAS SEEN NEARLY FULL SOLAR ALL DAY. ALTHOUGH DEEP MOISTURE LACKING WITH CURRENT INSTABILITY AND EXPECTED CAPE AND APPROACHING SECONDARY WAVE OVER SOUTHEAST SASK FEEL ADDITIONAL DEVELOPMENT POSSIBLE. AS A RESULT WILL MAINTAIN CHC OF EVENING TSRA OVER ALL BUT FAR NW PTN.AFTER EVENING CHANCES OF TSRA FROM VALLY EAST WITH PASSAGE OF MID LEVEL WAVE SHORT WAVE RIDGE SHIFTS ACROSS FORECAST AREA. COLUMN SHOWING GOOD DRYING FROM WEST TO EAST. 850MB THERMAL RIDGE REMAINS TO OUR WEST SO WITH WARM ADVECTION CONTINUING EXPECT MILD MINIMUM TEMPERATURES. MORE POTENT WAVE TO AFFECT FORECAST AREA MAINLY DURING AFTERNOON EVENING HOURS. NOSE OF UPPER JET REACHES MAINLY NORTHERN FA LATE IN DAY. ASSOCIATED SURFACE BOUNDARY ALSO MORE WELL DEFINED. PRECIPITBLE WATER IN EXCESS OF AN INCH AND WITH OTHER CONVECTIVE PARAMETERS WILL SEE SIMILAR RESULTS AS TODAY. THERMAL RIDGE SHIFTS OVER FORECAST AREA AND CLOUDS WILL HAVE A SIGNIFICANT AFFECT ON TEMPERATURES. WILL STAY CONSISTENT AND LEAN TOWARDS WARMER FWC/ETA GUIDANCE. TROUGH PUSHES EAST OVERNIGHT AND WILL MAINTAIN EVENING MENTION OF TSRA. NO REAL COOLING SO MILD TEMPS AGAIN OVERNIGHT. REMAINDER OF WORK WEEK LOOKS RELATIVELY RAINFREE AS COLUMN DRIES AND SFC HIGH WORKS EAST. SLIGHT COOLING IN THE LOWER LEVELS SHOULD RESULT IN TEMPERATURES MORE TOWARDS SEASONAL AVERAGES FRIDAY. .EXTENDED... UTILIZED 12Z AVN THRU 168HRS AS BASIS OF FCST. WEAK HIGH PRESSURE WILL BE OVER EXITING AREA ON SATURDAY...AHEAD OF NEXT SYSTEM WHICH APPEARS WILL ARRIVE A BIT FASTER THAN EARLIER THINKING IN FAST WESTERLY FLOW. WILL INTRODUCE CHC SHRA ON SUNDAY AND CONTINUE IT INTO MONDAY. MRF AND AVN TIMING OFF SOMEWHAT...WITH MRF SHOWING NEXT SYSTEM FAST ON HITS HEELS ON TUESDAY WHILE AVN SLOWER AND LESS AMPLIFIED. ATTM WILL LEAVE TUESDAY AS JUST MOSTLY CLOUDY. 85H TEMPS SUGGEST NEAR NORMAL TEMPERATURES AND THIS COVERED WELL IN PREV EXTENDED. .FGF...NONE. VOELKER/RIDDLE
The office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 28, 6:40 PM CDT | Severe Thunderstorm Warning | FGF | Otter Tail, Wilkin | 40 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 2002Every severe thunderstorm warning in 2002
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.