Alert archive / Minnesota / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 122, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Jul 14, 1998, 5:32 AM CDT for Pennington County, Polk County, Minnesota. It was in force for 33 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jul 14, 1998, 5:32 AM CDT (10:32 UTC)
- Expired
- Jul 14, 1998, 6:05 AM CDT
- In force
- 33 min
- Issued by
- NWS Grand Forks, ND
- Area
- Whole counties
Counties Pennington County, MN, Polk County, MN
The radar
The Fargo/Grand Forks radar (KMVX), 93 km from the middle of the area, began a volume at 10:36 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.
The nearest sounding before it
International Fa, MN (KINL), launched 00:00Z, 10.5 hours before the alert went out and 228 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
- 2864 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 39 m²/s²
- 0-3 km storm-relative helicity
- 112 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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 14, 3:38 AM CDT, 1 hour 54 minutes earlier.
Area forecast discussion, Jul 14, 3:38 AM CDT, 1 hour 54 minutes before
FORECAST DISCUSSION FOR EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 338 AM CDT TUE JUL 14 1998 FIRST PERIOD DISCUSSION...BKN LINE OF STRMS HAD FIRED UP FM SRN GRIGGS CNTY TO NRN CLAY CNTY. MOVG TO THE ENE ARND 30KT. AREA VAD WNDS SUGGEST CONVERGENCE BLO ABT 10 THSD FT AND VEERING. ADAP SHOWING AN E-W GRAD OF MXG RATIOS OVR ERN ND WITH LWR VALUES OVR ND AND NRN MN AND HI VALUES OVR ERN SD. GRIDDED DATA SHOWS HIR THETA-E AND MXG RATIOS TO MOV N AS WELL AS MSTR TRANSPORT. TIME X-SXN HAS BEST VRT MOTN ARND 18Z FOR FAR AND GFK AND SHOULD BE BEST TIME FOR CONVECTION. MOS TEMPS SEEM A LITTLE LOW CONSIDERING HIGHS WERE IN THE MID 90S OR BETTER IN ERN SD YSTRDY. THINK HIGHS WL BE ARND 90 IN BDE, ROX, TVF, HCO, DVL...LWR 90S AT GFK, CKN, FAR, DTL, FFM, PKD, VLY CITY. HOPPES
In the hours before
Local storm report, Jul 14, 4:00 AM CDT, 1 hour 32 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE EASTERN NORTH DAKOTA/GRAND FORKS
400 AM CDT TUE JUL 14 1998
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOC$ATION....
0310 AM PARK RAPIDS MN HUBBARD COUNTY S.O. REPORTED
HUBBARD .75 INCH HAIL
BRAZZELLLocal storm report, Jul 14, 4:00 AM CDT, 1 hour 32 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE EASTERN NORTH DAKOTA/GRAND FORKS
400 AM CDT TUE JUL 14 1998
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY2 LOCATION....
0310 AM PARK RAPIDS MN HUBBARD COUNTY S.O. REPORTED
HUBBARD .75 INCH HAIL IN PARK RAPIDS
BRAZZELLLocal storm report, Jul 14, 4:00 AM CDT, 1 hour 32 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE EASTERN NORTH DAKOTA/GRAND FORKS
400 AM CDT TUE JUL 14 1998
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOC$ATION....
0310 AM PARK RAPIDS MN HUBBARD COUNTY S.O. REPORTED
HUBBARD .75 INCH HAIL
BRAZZELLLocal storm report, Jul 14, 4:00 AM CDT, 1 hour 32 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE EASTERN NORTH DAKOTA/GRAND FORKS
400 AM CDT TUE JUL 14 1998
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY2 LOCATION....
0310 AM PARK RAPIDS MN HUBBARD COUNTY S.O. REPORTED
HUBBARD .75 INCH HAIL IN PARK RAPIDS
BRAZZELLThe office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 14, 3:07 AM CDT | Severe Thunderstorm Warning | FGF | Hubbard | 48 min |
| Jul 14, 7:17 AM CDT | Severe Thunderstorm Warning | FGF | Marshall | 33 min |
| Jul 14, 8:09 AM CDT | Severe Thunderstorm Warning | FGF | Clay, Norman | 31 min |
| Jul 14, 8:19 AM CDT | Severe Thunderstorm Warning | FGF | Roseau | 31 min |
| Jul 14, 11:18 AM CDT | Severe Thunderstorm Warning | FGF | Beltrami | 32 min |
| Jul 14, 11:21 AM CDT | Severe Thunderstorm Warning | FGF | Clearwater, Polk | 34 min |
| Jul 14, 12:58 PM CDT | Severe Thunderstorm Warning | FGF | Beltrami, Hubbard | 32 min |
| Jul 14, 1:14 PM CDT | Severe Thunderstorm Warning | FGF | Wilkin | 31 min |
| Jul 14, 1:46 PM CDT | Severe Thunderstorm Warning | FGF | Otter Tail, Wilkin | 34 min |
| Jul 14, 2:16 PM CDT | Severe Thunderstorm Warning | FGF | Otter Tail | 34 min |
| Jul 14, 2:36 PM CDT | Tornado Warning | FGF | Otter Tail | 34 min |
| Jul 14, 3:07 PM CDT | Flash Flood Warning | FGF | Otter Tail | 118 min |
| Jul 14, 3:10 PM CDT | Severe Thunderstorm Warning | FGF | Otter Tail | 50 min |
| Jul 14, 4:01 PM CDT | Severe Thunderstorm Warning | FGF | Otter Tail | 49 min |
| Jul 14, 4:53 PM CDT | Severe Thunderstorm Warning | FGF | Otter Tail | 32 min |
| Jul 14, 5:02 PM CDT | Flash Flood Warning | FGF | Otter Tail | 3 hr |
| Jul 14, 5:15 PM CDT | Severe Thunderstorm Warning | FGF | Becker, Clay | 35 min |
| Jul 14, 5:26 PM CDT | Severe Thunderstorm Warning | FGF | Otter Tail | 64 min |
| Jul 14, 5:30 PM CDT | Severe Thunderstorm Warning | FGF | Clearwater, Hubbard | 35 min |
| Jul 14, 5:43 PM CDT | Severe Thunderstorm Warning | FGF | Grant | 32 min |
| Jul 14, 5:46 PM CDT | Severe Thunderstorm Warning | FGF | Becker | 34 min |
| Jul 14, 6:16 PM CDT | Severe Thunderstorm Warning | FGF | Grant | 34 min |
| Jul 14, 6:22 PM CDT | Severe Thunderstorm Warning | FGF | Wilkin | 33 min |
| Jul 14, 6:47 PM CDT | Severe Thunderstorm Warning | FGF | Grant | 43 min |
| Jul 14, 6:41 AM CDT | Severe Thunderstorm Warning | FGF | Cavalier, Pembina | 29 min |
| Jul 14, 7:46 AM CDT | Severe Thunderstorm Warning | FGF | Cass | 34 min |
| Jul 14, 6:56 PM CDT | Severe Thunderstorm Warning | FGF | Richland | 49 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 1998Every severe thunderstorm warning in 1998
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.