Alert archive / Nebraska / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 158, NWS Omaha, NE
NWS Omaha, NE issued this severe thunderstorm warning at Jun 11, 1998, 6:17 PM CDT for Cedar County, Pierce County, Wayne County, Nebraska. It was in force for 48 min. 4 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
- Jun 11, 1998, 6:17 PM CDT (23:17 UTC)
- Expired
- Jun 11, 1998, 7:05 PM CDT
- In force
- 48 min
- Issued by
- NWS Omaha, NE
- Area
- Whole counties
Counties Cedar County, NE, Pierce County, NE, Wayne County, NE
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 11, 6:25 PM CDT | Hail 0.88 | Randolph, NE | |
| Jun 11, 6:30 PM CDT | Hail 0.75 | Randolph, NE | |
| Jun 11, 6:30 PM CDT | Hail 0.88 | Pierce, NE | |
| Jun 11, 6:50 PM CDT | Hail 0.75 | Wayne, NE | Hail partially covered the ground. |
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
Omaha, NE (KOAX), launched 12:00Z, 11.3 hours before the alert went out and 140 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
- 1818 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 7 m²/s²
- 0-3 km storm-relative helicity
- 160 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
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 Omaha, NE wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 11, 2:50 PM CDT, 3 hours 27 minutes earlier.
Area forecast discussion, Jun 11, 2:50 PM CDT, 3 hours 27 minutes before
CENTRAL NEBRASKA/NORTH CENTRAL KANSAS FORECAST DISCUSSION...CORRECTED CCF NATIONAL WEATHER SERVICE HASTINGS NE 250 PM CDT THU JUN 11 1998 ...THUNDERSTORM CHCS WILL BE MAIN CONCERN THIS PACKAGE... 12Z UAA HAD RATHER STRONG SYS FOR THIS TIME OF YEAR LIFTING NE THRU THE PLAINS. MAIN TROF EXTENDING SOUTH FROM UPPER LO HAS CLEARED AREA TO THE EAST AND PUSHED A BULK OF THE LL MOISTURE OUT OF AREA. STRONG SPOKE OF ENERGY ROTATING SE THRU SD AND NW NEB. THIS IS ESP EVIDENT ON SAT PIX THIS AFTN WITH PRETTY GOOD AREA OF TSRAS. MOST OF THIS ENERGY SHOULD STAY NORTH OF AREA...BUT WILL KEEP SOME LOW POPS IN FCST THIS EVENING. LOWS SHOULD BE ABLE TO GET DOWN TO GUIDANCE VALUES AS DRY AIR GRADUALLY WORKS EAST BEHIND TROF...BUT WILL PAD READINGS BY A DEGREE OR TWO GIVEN AMT OF WATER STANDING AROUND IN AREAS FROM RECENT RAINS. TOMR SHOULD BE QUITE NICE WITH P SUNNY SKIES AND MILD TEMPS. TOMR NIGHT WILL ADD 30% POPS WITH WAA PATTERN/RETURN FLOW SETTING UP. ISENTROPIC LIFT APPEARS PRETTY DECENT. ONLY CONCERN IS RATHER HIGH PRES DEFICITS...BUT THAT DIDN/T MATTER ABIT WED AM. WILL BRING AFTN STORMS BACK IN FCST SAT...BUT FEEL MAIN ACITIVITY WILL BE THAT EVENING. TEMPS WARMER SAT IN ADVAFNCE OF SYS AND WILL TAKE THE 80 TO 85S ON FRI AND ADD 5 OR SO DEGREES. GRI BT 058/082/059/087/062 203 DEG
In the hours before
Special weather statement, Jun 11, 12:30 PM CDT, 5 hours 47 minutes before
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</html>Special weather statement, Jun 11, 4:54 PM CDT, 1 hour 23 minutes before
NEZ011-012-015>018-030>034-042>045-050>053-065>068-078-088>093- IAZ043-055-056-069-079-080-090-091-121200- SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 455 PM CST THU JUN 11 1998 ...SEVERE WEATHER OUTLOOK FOR EASTERN NEBRASKA AND SOUTHWEST IOWA... SPOTTER ACTION... STORM SPOTTER ACTIVATION MAY BE REQUIRED LATE THIS AFTERNOON OR EVENING ACROSS EASTERN NEBRASKA AND SOUTHWEST IOWA. DISCUSSION... A COLD FRONT IS WILL MOVE FROM JUST NORTHWEST OF O NEILL TO THE THROUGH EASTERN NEBRASKA AND SOUTHWEST IOWA OVERNIGHT. THUNDERSTORMS ARE POSSIBLE ANY PLACE IN EASTERN NEBRASKA AND SOUTHWEST IOWA BUT ARE MOST LIKELY TO OCCUR NEAR THIS FRONT. WHILE THERE IS SOME POSSIBILITY OF SEVERE WEATHER FROM THESE THUNDERSTORMS...THE MOST LIKELY AREA FOR PRODUCING SEVERE WEATHER IS OVER NORTHEAST NEBRASKA FROM NORFOLK AND TEKAMAH NORTHWARD THROUGH MID EVENING. LOCALLY HEAVY RAINS ARE ALSO POSSIBLE FROM THUNDERSTORMS ANYWHERE. POnWERS
Special weather statement, Jun 11, 5:55 PM CDT, 22 minutes before
NEZ011-012-015>018-030>034-042>045-050>053-065>068-078-088>093- IAZ043-055-056-069-079-080-090-091-121200- SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 455 PM CST THU JUN 11 1998 ...SEVERE WEATHER OUTLOOK FOR EASTERN NEBRASKA AND SOUTHWEST IOWA... SPOTTER ACTION... STORM SPOTTER ACTIVATION MAY BE REQUIRED LATE THIS AFTERNOON OR EVENING ACROSS EASTERN NEBRASKA AND SOUTHWEST IOWA. DISCUSSION... A COLD FRONT IS WILL MOVE FROM JUST NORTHWEST OF O NEILL TO THE THROUGH EASTERN NEBRASKA AND SOUTHWEST IOWA OVERNIGHT. THUNDERSTORMS ARE POSSIBLE ANY PLACE IN EASTERN NEBRASKA AND SOUTHWEST IOWA BUT ARE MOST LIKELY TO OCCUR NEAR THIS FRONT. WHILE THERE IS SOME POSSIBILITY OF SEVERE WEATHER FROM THESE THUNDERSTORMS...THE MOST LIKELY AREA FOR PRODUCING SEVERE WEATHER IS OVER NORTHEAST NEBRASKA FROM NORFOLK AND TEKAMAH NORTHWARD THROUGH MID EVENING. LOCALLY HEAVY RAINS ARE ALSO POSSIBLE FROM THUNDERSTORMS ANYWHERE. POWERS
The office that day
Everything else NWS Omaha, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 10, 11:45 PM CDT | Flash Flood Warning | OAX | Washington | 4 hr |
| Jun 11, 9:34 AM CDT | Flash Flood Warning | OAX | Washington | 4 hr |
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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.