Alert archive / Nebraska / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 181, NWS North Platte, NE
NWS North Platte, NE issued this severe thunderstorm warning at Jul 2, 1998, 10:39 PM MDT for Sheridan County, Nebraska. It was in force for 61 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 2, 1998, 10:39 PM MDT (04:39 UTC)
- Expired
- Jul 2, 1998, 11:40 PM MDT
- In force
- 61 min
- Issued by
- NWS North Platte, NE
- Area
- Whole counties
County Sheridan County, NE
The radar
The North Platte radar (KLNX), 163 km from the middle of the area, began a volume at 04:40 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
Rapid City, SD (KUNR), launched 00:00Z, 4.7 hours before the alert went out and 178 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
- 1778 J/kg
- Mixed-layer CIN
- -7 J/kg
- Mixed-layer LCL
- 1451 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 52 m²/s²
- 0-3 km storm-relative helicity
- 190 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 6.7
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KLBF 030435 RRA SVRLBF NEC161-030540- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE NORTH PLATTE NE 1139 PM CDT (1039 PM MDT) THU JUL 2 1998 THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHERN SHERIDAN COUNTY IN THE NEBRASKA PANHANDLE * UNTIL 1140 PM MDT (1240 AM CDT) * AT 1038 PM MDT... NORTH PLATTE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 17 MILES EAST SOUTHEAST OF ALLIANCE OR 7 MILES WEST SOUTHWEST OF LAKESIDE MOVING EAST NORTHEAST AT 15 MPH. * DAMAGING HAIL AND/OR DESTRUCTIVE WINDS CAN BE EXPECTED NEAR... LAKESIDE BY 1100 PM MDT THIS STORM HAS A HISTORY OF DAMAGING WIND. GO INSIDE A STURDY BUILDING AND STAY AWAY FROM WINDOWS! SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO WARNING. SLM
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 North Platte, NE wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 2, 1:47 PM MDT, 8 hours 52 minutes earlier.
Area forecast discussion, Jul 2, 1:47 PM MDT, 8 hours 52 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE NORTH PLATTE NE 247 PM CDT THU JUL 2 1998 ...FORECAST PROBLEM WILL BE POPS... UPPER PATTERN HAS NOT CHANGED WITH 500 RIDGE OVER CENTRAL U.S. AND TROUGH IN WESTERN U.S. 500 RIDGE STILL IN FIRM CONTROL WITH WEAK SHORTWAVES MOVING THROUGH THE RIDGE. POPS ARE POSSIBLE THRU THE PERIOD. PROBLEMS THROUGH THE PERIOD WILL BE POPS. 700 AND 850 THTE RIDGES REMAIN STATIONARY ACROSS CWA THRU 48 HOURS WITH LLJ THROUGH THE PERIOD. LMVV FROM ETA AND NGM IN 850-700...700-500 AND 500-300 LAYERS HINT AT MCS TOMORROW NIGHT IN EASTERN NEBRASKA AND NEAR BLACK HILLS WHICH WOULD MOVE ACROSS NORTHERN NEBRASKA WITH UPWARD VERTICAL VELOCITIES WITH LMRH VALUES IN 40-60 PERCENT. LMVV NOT VERY ORGANIZED TONIGHT THOUGH. Q VECTORS NOT VERY ORGANIZED EITHER IN THE 850-700...700-500 AND 500-300 LAYERS THROUGH THE PERIOD. 18Z SFC CHART SHOWED LOW OVER SE CO WITH WARM FRONT OVER SW KS INTO OKC THROUGH LIT WITH DEW POINTS IN THE 60S ACROSS CWA. UPSLOPE FLOW WILL CONTINUE THROUGH THE PERIOD WITH 850 DEW POINTS OF 8-16 DEGREES THROUGH THE PERIOD WITH ETA SHOWING PRETTY POTENT 850 WARMFRONT WITH GOOD CONVERGENCE OVER HSI CWA AT 36 HOURS. CAPE VALUES TONIGHT IN 1000-2000 J/KG RANGE WITH CIN IN -40 IN THE WEST TO -80 IN THE EAST. CAPE TOMORROW NIGHT AT 00Z IN 700-2500 J/KG RANGE WITH CIN VALUES -40 IN SOUTH TO -100 IN NORTHWEST. WITH THIS IN MIND...FEEL THERE IS THREAT OF HEAVY RAINFALL THROUGH THE PERIOD. WILL GO HIGHEST POPS IN NE CWA WITH 50 TONIGHT AND LOWER POPS ELSEWHERE AND GO HIGH POPS IN NORTH TOMORROW NIGHT FOR POSSIBLE MCS IN BLACK HILLS AND EASTERN NEB. FEEL SOUTH COULD BE CAPPED AND WILL GO LOWEST POPS DUE TO 700 TEMPS IN 13-16 DEGREE RANGE TOMORROW ACROSS CWA. PRELIMINARY GUIDANCE FOR COORDINATION ONLY. OFFICIAL FORECASTS ARE CONTAINED WITHIN PRODUCT OMAZFPNE. CCF LBF BB 065/091 064/091 066 703231 ANW BB 066/088 066/085 067 705352 OGA BB 065/091 064/091 066 703231 ONL BB 06Z7/088 067/084 067 705352 IML BB 066/092 065/092 067 703231 BBW BB 066/090 066/088 067 704242 VTN BB 065/089 064/085 066 704242 MICHELS
In the hours before
Local storm report, Jul 2, 9:50 PM MDT, 49 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1050 PM CDT WED JUL 02 1998
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
1004 PM 5N 1W VALENTINE NE 1.75 INCH HAIL
07/01/98 CHERRY
1030 PM VALENTINE NE 0.75 INCH HAIL
06/29/98 CHERRY
BUTLERThe office that day
Everything else NWS North Platte, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 2, 9:39 PM MDT | Severe Thunderstorm Warning | LBF | Garden | 66 min |
| Jul 2, 9:47 PM MDT | Tornado Warning | LBF | Garden | 63 min |
| Jul 2, 10:51 PM MDT | Severe Thunderstorm Warning | LBF | Arthur, Garden, Grant | 59 min |
| Jul 2, 11:29 PM MDT | Severe Thunderstorm Warning | LBF | Cherry | 61 min |
| Jul 3, 12:15 AM MDT | Severe Thunderstorm Warning | LBF | Blaine, Loup | 45 min |
| Jul 3, 12:20 AM MDT | Severe Thunderstorm Warning | LBF | Hooker | 50 min |
| Jul 3, 12:44 AM MDT | Severe Thunderstorm Warning | LBF | Thomas | 66 min |
| Jul 3, 1:04 AM MDT | Severe Thunderstorm Warning | LBF | Loup | 46 min |
| Jul 3, 1:15 AM MDT | Severe Thunderstorm Warning | LBF | Brown | 65 min |
| Jul 3, 1:18 AM MDT | Severe Thunderstorm Warning | LBF | Logan | 32 min |
| Jul 3, 1:58 AM MDT | Severe Thunderstorm Warning | LBF | Loup, Rock | 62 min |
| Jul 3, 2:30 AM MDT | Severe Thunderstorm Warning | LBF | Garfield | 65 min |
| Jul 3, 2:59 AM MDT | Severe Thunderstorm Warning | LBF | Holt, Wheeler | 51 min |
Nearby
Severe Thunderstorm Warnings in Nebraska, 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.