Alert archive / Nebraska / Tornado Warnings in 1998
Tornado Warning 33, NWS Omaha, NE
NWS Omaha, NE issued this tornado warning at Jun 13, 1998, 6:45 PM CDT for Jefferson County, Nebraska. It was in force for 50 min. 1 report 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 13, 1998, 6:45 PM CDT (23:45 UTC)
- Expired
- Jun 13, 1998, 7:35 PM CDT
- In force
- 50 min
- Issued by
- NWS Omaha, NE
- Area
- Whole counties
County Jefferson County, NE
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 13, 7:27 PM CDT | Hail 3 | Diller, NE |
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 |
|---|---|---|---|
| Jun 13, 5:30 PM CDT | Tornado Watch | SPC | 5 hr |
The nearest sounding before it
Omaha, NE (KOAX), launched 12:00Z, 11.8 hours before the alert went out and 143 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
- 1624 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- -18 m²/s²
- 0-3 km storm-relative helicity
- 41 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
589 WFUS1 KOMA 132347 RRA TOROMA NEC095-140035- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 645 PM CDT SAT JUN 13 1998 THE NATIONAL WEATHER SERVICE IN OMAHA HAS ISSUED A * TORNADO WARNING FOR... JEFFERSON COUNTY IN SOUTHEASTERN NEBRASKA * UNTIL 735 PM CDT * AT 644 PM CDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A TORNADO 57 MILES SOUTH OF YORK OR 7 MILES WEST SOUTHWEST OF REYNOLDS MOVING EAST AT 35 MPH. * THE TORNADO IS EXPECTED TO BE NEAR... REYNOLDS AT 650 PM CDT FAIRBURY AT 705 PM CDT TAKE COVER IN A REINFORCED BUILDING ON THE LOWEST LEVEL IMMEDIATELY. STAY AWAY FROM WINDOWS. DAMAGE REPORTS OR OBSERVED SEVERE WEATHER CAN BE GIVEN TO LOCAL LAW ENFORCEMENT FOR RELAY TO THE NATIONAL WEATHER SERVICE. FOBERT
What forecasters said that day
The local office's own words before this tornado 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 tornado warning went out at Jun 13, 1:30 PM CDT, 5 hours 15 minutes earlier.
Area forecast discussion, Jun 13, 1:30 PM CDT, 5 hours 15 minutes before
SOUTH CENTRAL NEBRASKA/NORTH CENTRAL KANSAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE HASTINGS NE 130 PM CDT SAT JUN 13 1998 ...MAIN CONCERN...OF COURSE...IS SVR WX THREAT TONIGHT...THEN DEALING WITH WINDY/SHOWERY WX SUN INTO MON W/ ANOTHER STRONG IMPULSE FORECAST TO DIVE THIS WAY IN NW FLOW... 12Z UAA POINTS TO A RATHER STRONG SYS MOVING OUT OF THE ROCKIES. H25 JET WINDS COMING AROUND BASE OF UPPER LO TOP OUT AT 125 KTS WITH 75 KT H5 JET AS WELL. DECENT HGHT FALLS HAVE DEVELOPED W/ SYS W/ 80 GPM FALLS IN WRN CO. WV IMAGERY AS OF 17Z STILL SHOW A WELL DEFINED SPIN MOVING THRU WRN CO. AZTEC NM PROFILER SHOWING STRONG WINDS PROGRESSING EAST W/ 65KTS AT H5 AND 115 IN THE H25/H2 LAYER. MEANWHILE...H85 ANAL HAD LO PRES IN WY WITH FRONT EXTENDING SE INTO CNTRL KS AND AR. ADEQT MOISTURE FOR SVR STORMS EXISTS FROM CNTRL KS ON SOUTH. INCREASING LLJ CONTS TO PUSH THIS INTO NEB AS WELL. AT THE SFC...LOW PRES...AS ADVERTISED...WAS DEEPENING RAPIDLY INVOF DNR. ADAP SHOWS PRES FALL BULLSEYE IN SW NEB SUPPORTING A TRACK ACROSS SRN NEB TONIGHT. WARM FRONT NOW EXTENDS FROM NE CO/NW KS ESE THRU CNTRL KS AROUND GBD AND DOWN TO MO/AR BORDER. DWPTS VERY JUICY SOUTH OF FRONT W/ MID 70S DWPTS JUST STARTING TO CROSS SRN KS BORDER. MID 60S READINGS INTO CNTRL KS AS OF 17Z. GOOD DRY PUNCH ALSO EVIDENT THRU SW KS INTO TX PNHDL W/ WSW WINDS AND DWPTS IN THE 40S. ENOUGH SAID...AS UPPER SYS RACES EAST OUT OF CO AND WARM FRONT LIFTS NORTH TO ABOUT NEB/KS BORDER...PLENTY OF SVR WX WILL BE AROUND TONIGHT\ ...ESP THRU MIDNIGHT. AFT COORD W/ OMA WILL INCLUDE FLASH FLOOD WATCH IN ERN PARTS OF CWA WHERE GROUND REMAINS PRETTY SATURATED FROM RECENT RAINS...AND BEST CHC OF WIDESPREAD MOD/HEAVY RAIN EXISTS AS SVR WX ORGANIZES INTO AN MCS. EVEN THO PATTERN IS RELATIVELY ACTIVE THRU MON...IT IS PRETTY STRAIGHT FORWARD. AS THIS CURRENT SYS WINDS UP IN IA...NW FLOW WILL INCREASE IN RESPONSE TO TIGHTENING GRADIENT. ANOTHER STRONG IMPULSE PROGGED TO DIVE INTO AREA IN NW FLOW LATE TOMR / TOMR NIGHT. WHILE SVR WX POTENTIAL IS IN QUESTION...SHRA/TSRA CHCS ARE NOT. W/ FAN/FWC BOTH HOLDING ONTO POPS INTO MON...SCT POPS WILL LIKELY TO NEEDED AT LEAST TO COVER AM HRS AS SYS PROGRESSES EAST OUT OF AREA BY AFTN. WILL FOCUS POPS OVER NE PARTS OF CWA SUN THRU MON AND TAPER OFF CHCS FURTHER SOUTH AND WEST AWAY FROM STRONGEST ENERGY AND MOST ABUNDANT WRAPAROUND MOISTURE. IT WILL FEEL RELATIVELY COOL SUN/MON AS NW WINDS OF 20/30 MPH BOTH DAYS COUPLE W/ READINGS IN THE LOWER TO MID 70S. KS AREA WILL LIKELY TO A FAIR AMT WARMER AS COOLER AIR SHOULD REMAIN TO AREAS WEST OF IA LOW AS IT WRAPS UP AND EDGES EAST. GRI NN 058/074/052/075/55 744 GURNEY
In the hours before
Special weather statement, Jun 13, 5:00 PM CDT, 1 hour 45 minutes before
NEZ011-012-015>018-030>034-042>045-050>053-065>068-078-088>093- IAZ043-055-056-069-079-080-090-091-141200- SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 500 PM CDT SAT JUN 13 1998 ...SEVERE WEATHER OUTLOOK FOR EASTERN NEBRASKA AND SOUTHWEST IOWA... SPOTTER ACTION... STORM SPOTTER GROUPS WILL LIKELY BE NEEDED THIS EVENING INTO TONIGHT ACROSS PORTIONS OF EASTERN NEBRASKA AND SOUTHWEST IOWA. DISCUSSION... CONDITIONS ARE VERY FAVORABLE FOR SEVERE WEATHER OVER EASTERN NEBRASKA AND WESTERN IOWA. DEEP LOW PRESSURE FOR MID JUNE WAS LOCATED OVER EXTREME SOUTHWEST NEBRASKA WITH A WARM FRONT EXTENDING INTO CENTRAL KANSAS. TEMPERATURES SOUTH OF THE FRONT IN CENTRAL KANSAS WERE ABOVE 100 DEGREES LATE SATURDAY AFTERNOON WHILE DEWPOINTS WELL INTO THE 70S WERE LOCATED ACROSS SOUTHEAST KANSAS. THESE UNSTABLE CONDITIONS WERE SPREADING NORTH TOWARD SOUTHERN NEBRASKA. IN ADDITION...A STRONG UPPER LEVEL SYSTEM WILL MOVE FROM NORTHERN COLORADO INTO CENTRAL NEBRASKA BY MIDNIGHT. THE COMBINATION OF THE VERY UNSTABLE CONDITIONS SPREADING INTO NEBRASKA...THE WARM FRONT AND THE UPPER LEVEL SYSTEM WAS ALREADY CAUSING SEVERE WEATHER OVER WESTERN AND PARTS OF CENTRAL NEBRASKA. THIS SEVERE WEATHER IS LIKELY TO MOVE INTO EASTERN NEBRASKA BY EARLY EVENING AND SPREAD INTO PARTS OF WESTERN IOWA TOWARD MIDNIGHT. WIND PROFILES INDICATE THE POTENTIAL FOR SUPERCELL THUNDERSTORMS AND TORNADOES...ESPECIALLY ALONG AND NORTH OF THE WARM FRONT IN SOUTHEAST NEBRASKA. HOWEVER...LARGE HAIL...DAMAGING WINDS AND ISOLATED TORNADOES REMAIN A RISK OVER MUCH OF THE AREA TONIGHT. IN ADDITION TO THE SEVERE WEATHER...HEAVY RAINFALL AND FLOODING COULD ALSO BE A PROBLEM ACROSS ALL OF EASTERN NEBRASKA AND SOUTHWEST IOWA TONIGHT. CHERMOK
Special weather statement, Jun 13, 5:00 PM CDT, 1 hour 45 minutes before
NEZ011-012-015>018-030>034-042>045-050>053-065>068-078-088>093- IAZ043-055-056-069-079-080-090-091-141200- SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 500 PM CDT SAT JUN 13 1998 ...SEVERE WEATHER OUTLOOK FOR EASTERN NEBRASKA AND SOUTHWEST IOWA... SPOTTER ACTION... STORM SPOTTER GROUPS WILL LIKELY BE NEEDED THIS EVENING INTO TONIGHT ACROSS PORTIONS OF EASTERN NEBRASKA AND SOUTHWEST IOWA. DISCUSSION... CONDITIONS ARE VERY FAVORABLE FOR SEVERE WEATHER OVER EASTERN NEBRASKA AND WESTERN IOWA. DEEP LOW PRESSURE FOR MID JUNE WAS LOCATED OVER EXTREME SOUTHWEST NEBRASKA WITH A WARM FRONT EXTENDING INTO CENTRAL KANSAS. TEMPERATURES SOUTH OF THE FRONT IN CENTRAL KANSAS WERE ABOVE 100 DEGREES LATE SATURDAY AFTERNOON WHILE DEWPOINTS WELL INTO THE 70S WERE LOCATED ACROSS SOUTHEAST KANSAS. THESE UNSTABLE CONDITIONS WERE SPREADING NORTH TOWARD SOUTHERN NEBRASKA. IN ADDITION...A STRONG UPPER LEVEL SYSTEM WILL MOVE FROM NORTHERN COLORADO INTO CENTRAL NEBRASKA BY MIDNIGHT. THE COMBINATION OF THE VERY UNSTABLE CONDITIONS SPREADING INTO NEBRASKA...THE WARM FRONT AND THE UPPER LEVEL SYSTEM WAS ALREADY CAUSING SEVERE WEATHER OVER WESTERN AND PARTS OF CENTRAL NEBRASKA. THIS SEVERE WEATHER IS LIKELY TO MOVE INTO EASTERN NEBRASKA BY EARLY EVENING AND SPREAD INTO PARTS OF WESTERN IOWA TOWARD MIDNIGHT. WIND PROFILES INDICATE THE POTENTIAL FOR SUPERCELL THUNDERSTORMS AND TORNADOES...ESPECIALLY ALONG AND NORTH OF THE WARM FRONT IN SOUTHEAST NEBRASKA. HOWEVER...LARGE HAIL...DAMAGING WINDS AND ISOLATED TORNADOES REMAIN A RISK OVER MUCH OF THE AREA TONIGHT. IN ADDITION TO THE SEVERE WEATHER...HEAVY RAINFALL AND FLOODING COULD ALSO BE A PROBLEM ACROSS ALL OF EASTERN NEBRASKA AND SOUTHWEST IOWA TONIGHT. CHERMOK
Nearby
Tornado Warnings in Nebraska, 1998Every tornado warning in 1998Tornadoes 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.