Alert archive / Minnesota / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 134, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Jul 14, 1998, 3:10 PM CDT for Otter Tail County, Minnesota. It was in force for 50 min. 6 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jul 14, 1998, 3:10 PM CDT (20:10 UTC)
- Expired
- Jul 14, 1998, 4:00 PM CDT
- In force
- 50 min
- Issued by
- NWS Grand Forks, ND
- Area
- Whole counties
County Otter Tail County, MN
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 14, 3:16 PM CDT | Hail 1.75 | Phelps, MN | |
| Jul 14, 3:35 PM CDT | Hail 1 | Phelps, MN | |
| Jul 14, 3:53 PM CDT | Hail 2.75 | Phelps, MN | |
| Jul 14, 3:53 PM CDT | Hail 1.75 | Phelps, MN | |
| Jul 14, 3:53 PM CDT | Hail 4 | Phelps, MN | Grapefruit-sized hail fell at West Lost Lake. As the hail hit the water, plumes jumped up 3 feet high. |
| Jul 14, 4:00 PM CDT | Hail 0.75 | Battle Lake, 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 14, 2:00 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 8.2 hours before the alert went out and 239 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
- 2677 J/kg
- Mixed-layer CIN
- -139 J/kg
- Mixed-layer LCL
- 801 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- 9 m²/s²
- 0-3 km storm-relative helicity
- -14 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KFAR 142010 RRA SVRFAR MNC111-142100- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 310 PM CDT TUE JUL 14 1998 THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... OTTER TAIL COUNTY IN WEST CENTRAL MINNESOTA * UNTIL 400 PM CDT * AT 310 PM CDT A SEVERE THUNDERSTORM WAS LOCATED 12 MILES NORTHEAST OF FERGUS FALLS MOVING EAST AT 15 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR BATTLE LAKE BY 320 PM CDT. REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY PRODUCE TORNADOES WITH LITTLE OR NO ADVANCED WARNING.
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, 2:30 PM CDT, 40 minutes earlier.
Area forecast discussion, Jul 14, 2:30 PM CDT, 40 minutes before
FORECAST DISCUSSION FOR EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 230 PM CDT TUE JUL 14 1998 COLD FRONT LOCATED AT 19Z FROM NR LANGDON TO DEVILS LAKE TO WK LOW PRESSURE SYSTEM JUST NORTH OF MOBRIDGE SD. EARLY MORNING TSTMS TEMPORARILY STABILZED NE ND...LEAVING OUTFLOW BOUNDARY FROM NEAR BEMIDJI TO WHAPETON. ATMOSPHERE ALONG THIS BOUNDARY EXTREMELY UNSTABLE WITH LI DOWN TO -13 AND DEW POINTS POOLING IN THE UPPER 70S. EXPECT CONTINUED SEVERE TSTM DEVELOPMENT ALONG THIS BOUNDARY BACK ACROSS SE ND/WCNTRL MN THIS AFTERNOON. ACTIVITY WILL MOVE OUT BY MID EVENING. 12Z ETA/NGM GRIDDED DATA SHOWS MAIN FRONTOGENESIS ALONG THIS BOUNDARY. BIGGER QUESTION IS WILL STORMS RE-DEVELOP OVR NE ND AND NW MN WHERE ATMOSPHERE WAS ABLE TO STABLIZE. SOME SIGNS NOW ON SATELLITE OF MID LEVEL INSTABILITY WITH ACCAS DEVELOPMENT ALONG COLD FRONT NORTH OF DEVILS LAKE AND TO THE SOUTHWEST OF GRAND FORKS. NRN VALLEY WILL BE AIDED BY RIGHT REAR EXIT REGION OF 90 KT 300 MB JET. DEW POINTS NOW UP TO 74 AT KGFK...SO THINK WDLY SCATTERED TSTMS WILL DEVELOP OVER THE NRN VALLEY AND NW MN LATE THIS AFTERNOON. THUS FOR THE FORECAST TONIGHT...WILL STICK WITH EVENING TSTM IN MOST AREAS...EXCEPT POSSIBILY DEVILS LAKE. ACTIVITY WILL END BY MIDNIGHT THEN CLEARING AND LOWER HUMIDITY LEVELS. LOOKING AT DRIER UPSTREAM DEW POINTS EXPECT LOW TEMPS IN THE UPPER 50S AT DEVILS LAKE TO THE MID 60S IN WCNTRL MN. RIDDLE
In the hours before
Local storm report, Jul 14, 10:50 AM CDT, 4 hours 20 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE EASTERN NORTH DAKOTA/GRAND FORKS
1050 AM CDT TUE JUL 14 1998
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0720 AM 2NW HOLT MN 0.75 INCH HAIL
07/14/98 MARSHALL
0745 AM HORACE ND 1.75 INCH HAIL
07/14/98 CASS
GODONLocal storm report, Jul 14, 10:50 AM CDT, 4 hours 20 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE EASTERN NORTH DAKOTA/GRAND FORKS
1050 AM CDT TUE JUL 14 1998
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0720 AM 2NW HOLT MN 0.75 INCH HAIL
07/14/98 MARSHALL
0745 AM HORACE ND 1.75 INCH HAIL
07/14/98 CASS
GODONSpecial weather statement, Jul 14, 12:45 PM CDT, 2 hours 25 minutes before
MNZ001>009-013>017-022>024-027>032-040-NDZ006>008-014>016-024- 026>030-038-039-049-052-053-151200- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS 1245 PM CDT TUE JUL 14 1998 ..SEVERE THUNDERSTORMS POSSIBLE ACROSS EASTERN NORTH DAKOTA AND NORTHWEST AND WEST CENTRAL MINNESOTA THIS AFTERNOON AND EARLY EVENING... A VERY MOIST AND UNSTABLE AIRMASS IS ACROSS THE EASTERN NORTH DAKOTA AND NORTHWEST AND WEST CENTRAL NORTH DAKOTA AT MIDDAY. THE MOST UNSTABLE AIRMASS WAS OVER THE SOUTHERN RED RIVER VALLEY WHERE DEW POINTS HAD RISEN TO NEAR 80 IN THE FARGO AND WAPHETON AREAS. A COLD FRONT LOCATED FROM NEAR DEVILS LAKE TO BISMARCK WILL MOVE EAST THROUGH EASTERN NORTH DAKOTA AMD INTO WESTERN MINNESOTA BY EARLY EVENING. THERE IS A GOOD CHANCE FOR SCATTERED SEVERE THUNDERSTORMS ALONG AND AHEAD OF THIS FRONT THIS AFTERNOON AND EARLY EVENING. THE BEST CHANCE WILL BE OVER SOUTHEAST NORTH DAKOTA AND WEST CENTRAL MINNESOTA...SOUTH AND EAST OF A VALLEY CITY TO HILLSBORO TO BEMIDJI LINE BETWEEN THE HOURS OF 1 PM AND 8 PM. THE MAIN THREAT WILL BE LARGE HAIL...DAMAGING WINDS...AND VERY HEAVY RAIN. SUFFICIENT WIND SHEAR EXITS IN THE ATMOSPHERE FOR THE FORMATION OF ISOLATED TORNADOES. SPOTTERS AND EMERGENCY MANAGERS SHOULD BE PREPARED FOR POSSIBLE ACTIVATION THIS AFTERNOON AND EVENING...ESPECIALLY OVER SOUTHEAST NORTH DAKOTA AND WEST CENTRAL MINNESOTA. RIDDLE
Special weather statement, Jul 14, 12:45 PM CDT, 2 hours 25 minutes before
MNZ001>009-013>017-022>024-027>032-040-NDZ006>008-014>016-024- 026>030-038-039-049-052-053-151200- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS 1245 PM CDT TUE JUL 14 1998 ..SEVERE THUNDERSTORMS POSSIBLE ACROSS EASTERN NORTH DAKOTA AND NORTHWEST AND WEST CENTRAL MINNESOTA THIS AFTERNOON AND EARLY EVENING... A VERY MOIST AND UNSTABLE AIRMASS IS ACROSS THE EASTERN NORTH DAKOTA AND NORTHWEST AND WEST CENTRAL NORTH DAKOTA AT MIDDAY. THE MOST UNSTABLE AIRMASS WAS OVER THE SOUTHERN RED RIVER VALLEY WHERE DEW POINTS HAD RISEN TO NEAR 80 IN THE FARGO AND WAPHETON AREAS. A COLD FRONT LOCATED FROM NEAR DEVILS LAKE TO BISMARCK WILL MOVE EAST THROUGH EASTERN NORTH DAKOTA AMD INTO WESTERN MINNESOTA BY EARLY EVENING. THERE IS A GOOD CHANCE FOR SCATTERED SEVERE THUNDERSTORMS ALONG AND AHEAD OF THIS FRONT THIS AFTERNOON AND EARLY EVENING. THE BEST CHANCE WILL BE OVER SOUTHEAST NORTH DAKOTA AND WEST CENTRAL MINNESOTA...SOUTH AND EAST OF A VALLEY CITY TO HILLSBORO TO BEMIDJI LINE BETWEEN THE HOURS OF 1 PM AND 8 PM. THE MAIN THREAT WILL BE LARGE HAIL...DAMAGING WINDS...AND VERY HEAVY RAIN. SUFFICIENT WIND SHEAR EXITS IN THE ATMOSPHERE FOR THE FORMATION OF ISOLATED TORNADOES. SPOTTERS AND EMERGENCY MANAGERS SHOULD BE PREPARED FOR POSSIBLE ACTIVATION THIS AFTERNOON AND EVENING...ESPECIALLY OVER SOUTHEAST NORTH DAKOTA AND WEST CENTRAL MINNESOTA. RIDDLE
Local storm report, Jul 14, 12:50 PM CDT, 2 hours 20 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE EASTERN NORTH DAKOTA/GRAND FORKS
1250 PM CDT TUE JUL 14 1998
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
1133 AM 3N GULLY MN 0.75 INCH HAIL
07/14/98 POLK
1135 AM 25N BEMIDJI MN 0.75 INCH HAIL
07/14/98 BELTRAMI
GODONLocal storm report, Jul 14, 12:50 PM CDT, 2 hours 20 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE EASTERN NORTH DAKOTA/GRAND FORKS
1250 PM CDT TUE JUL 14 1998
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
1133 AM 3N GULLY MN 0.75 INCH HAIL
07/14/98 POLK
1135 AM 25N BEMIDJI MN 0.75 INCH HAIL
07/14/98 BELTRAMI
GODONThe 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, 5:32 AM CDT | Severe Thunderstorm Warning | FGF | Pennington, Polk | 33 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, 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 |
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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.