Alert archive / Nebraska / Tornado Warnings in 1999

Tornado Warning 41, NWS Hastings, NE

June 9, 1999Fillmore County, York County, Nebraska

NWS Hastings, NE issued this tornado warning at Jun 9, 1999, 9:05 PM CDT for Fillmore County, York County, Nebraska. It was in force for 25 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 9, 1999, 9:05 PM CDT (02:05 UTC)
Expired
Jun 9, 1999, 9:30 PM CDT
In force
25 min
Issued by
NWS Hastings, NE
Area
Whole counties

Counties Fillmore County, NE, York County, NE

What was reported inside it

TimeReportWhereRemark
Jun 9, 9:10 PM CDTTornado F0Lushton, 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 nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 2.1 hours before the alert went out and 124 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.

Skew-T log-pSkew-T log-p diagram, Omaha, NE at 00:00Z on 1999-06-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1592 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Omaha, NE at 00:00Z on 1999-06-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 107 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1592 J/kg
Mixed-layer CIN
-84 J/kg
Mixed-layer LCL
1308 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
107 m²/s²
0-3 km storm-relative helicity
145 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.5

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

378 
WFUS1 KGRI 100209
TORGRI
NEC059-185-100230-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE HASTINGS NE
905 PM CDT WED JUN 9 1999

THE NATIONAL WEATHER SERVICE IN HASTINGS HAS ISSUED A

* TORNADO WARNING FOR PEOPLE IN...
  EXTREME NORTHERN FILLMORE COUNTY IN SOUTH CENTRAL NEBRASKA
  SOUTHERN YORK COUNTY IN EAST CENTRAL NEBRASKA

* UNTIL 930 PM CDT

* AT 905 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  DEVELOPING TORNADO 12 MILES SOUTH OF YORK...OR 5 MILES SOUTHWEST OF
  MCCOOL JUNCTION...MOVING NORTH AT 10 MPH.

* TORNADO IS EXPECTED TO BE NEAR...
  LUSHTON AT 930 PM 

PEOPLE IN EXTREME NORTHERN FILLMORE AND SOUTHERN YORK COUNTIES
SHOULD TAKE SHELTER IMMEDIATELY IN A BASEMENT OR SMALL INTERIOR ROOM
ON THE LOWEST FLOOR.

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY BUILDING. AS A
LAST RESORT...SEEK SHELTER IN A DITCH OR LOW SPOT AND COVER YOUR HEAD
WITH YOUR HANDS.

$$

LAT...LON 4067 9778 4068 9755 4096 9753 4095 9782
09

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 Hastings, NE wrote its last area forecast discussion before this tornado warning went out at Jun 9, 2:10 PM CDT, 6 hours 55 minutes earlier.

Area forecast discussion, Jun 9, 2:10 PM CDT, 6 hours 55 minutes before
SOUTH CENTRAL NEBRASKA/NORTH CENTRAL KANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HASTINGS NE
210 PM CDT WED JUN 9 1999

...THREAT OF SEVERE WX FIRST ORDER OF CONCERN FOLLOWED BY HEAVY
RAIN TONIGHT AND THURSDAY NIGHT...

MID LEVEL CLOUDINESS FROM LAST NIGHTS CONVECTIVE COMPLEX OVER SC KS
SLOW TO EXIT EASTERN FA.  BANDS OF CU AND MID LEVEL CLOUDS HOWEVER
ARE INCREASING ACROSS CENT NEBR INTO NW KS VIA VIS SAT. THIS MAY
PREVENT TEMPS FROM REACHING CONVECTIVE THRESHOLDS...BUT MORE
IMPORTANT IS THE INABILITY OF SFC DWPTS TO REBOUND. 18Z SFC ANALYSIS
SHOWS DWPTS IN THE LOWER 60S ACROSS FA WHILE EASTERN NEBR AND KS ARE
WELL INTO THE 60S TO LOWER 70S. 15Z RUC SHOWS LLVL MOISTURE
INCREASING WITH 65 DEWPTS FCST ACROSS EASTERN 2/3 CWA BY MID AFTN
WHICH MAY BE PUSHING IT. 18Z SFC ANALYSIS AND KLNX 88-D DEPICT COLD
FRONT FROM JUST EAST OF KANW TO NEAR KLBF.

STILL UNSURE WERE INITIAL CONVECTION WILL DEVELOP...BUT AM LEANING
EAST OF FA AREA ATTM. EXPECT SOME REFL RETURNS ON RADAR NEAR EASTERN
FA BY ZONE ISSUANCE AND WILL WAIT TIL LAST MINUTE FOR UPDATES/WATCH
HEADLINES THAT MAY BE NEEDED BEFORE FINAL PRODUCT IS SENT. SFC
BASED CAPES SHOULD APPROACH 2500-3000 J/KG LATE THIS AFTN ACRS
EASTERN CWA...BUT WEAK SPEED SHEAR COULD SUSPEND LIQUID WATER IN
UPDRAFT AND ADD ADDITIONAL LATENT HEAT UPON FREEZING THUS INCREASING
CAPE EVEN FURTHER. VERY TO EXTREMELY UNSTABLE ATMOS IS PROGGED WITH
LIFTED FCST BETWEEN -8 TO -11. BRN AND BRN SHEAR VALUES SUGGEST A
COMBINATION OF SUPERCELL AND MULTICELL DEVELOPMENT. MORE LIKELY
SUPERCELL...LARGE HAIL AND ISOLATED TORNADOES...EARLY WITH A
TRANSITION TO MULTICELL...THEN A CONVECTIVE COMPLEX SETTING UP
OVERNIGHT. DIFFLUENT THKNS PATTERN EAST OF FA AND STRONG UPPER AIR
DIVERGENCE SHOULD SUPPORT ONGOING TRAINING CELLS TONIGHT LEADING TO
LOCAL HEAVY RAINS AND URBAN FLOODING.

CLOUDS AND WET CONDITIONS ON THURSDAY SHOULD SUPPRESS MOST STORMS
FROM BECOMING SEVERE...BUT A FEW SHOULD BE POSSIBLE ACROSS
SOUTHEASTERN CWA NEAR FRONT. WILL RIDE CATEGORICAL POPS TONIGHT AND
THURSDAY NIGHT IN FCST...WITH MENTION OF A FEW POSSIBLY SEVERE
TONIGHT. THURSDAY DAY POPS 40-50%. AVN HANGS UP FRONT ON FRIDAY...
ALTHOUGH IT COULD BE A TAD FAR NORTH...BUT WILL KEEP CHANCE OF
SHOWERS/THUNDERSTORMS IN FCST FOR FRIDAY AS WELL. WILL NOT STRAY TOO
FAR FROM GUID EXCEPT TO TACK ON A DEGREE OR TWO TO OVERNIGHT LOWS DUE
TO THICK CLOUD CANOPY.

IN THE EXTENDED...THE UKMET/MRF/NOGAPS ALL AGREE IN BREAKING DOWN
EASTERN U.S. RIDGE WITH INFLUENCE OF NORTHERN PLAINS WAVE. A
TRANSITION TO A WESTERN RIDGE PATTERN AND NORTHWEST FLOW OVER CENTRAL
PLAINS LOOK LIKELY ATTM. WILL GO DRY SAT/SUN/MON WITH LOWS IN THE 60S
AND HIGHS IN THE 80S.

.GID...NONE

PURDY

In the hours before

Local storm report, Jun 9, 7:23 PM CDT, 1 hour 42 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE  HASTINGS NE
723 PM CDT WED JUN 9 1999

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0714 PM    BRADSHAW                  NE   1.00 INCH HAIL
06/09/99   YORK

LEW
Local storm report, Jun 9, 7:23 PM CDT, 1 hour 42 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE  HASTINGS NE
723 PM CDT WED JUN 9 1999

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0714 PM    BRADSHAW                  NE   1.00 INCH HAIL
06/09/99   YORK

LEW
Local storm report, Jun 9, 8:18 PM CDT, 47 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE  HASTINGS NE
818 PM CDT WED JUN 9 1999

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0813 PM    YORK                      NE   1.75 INCH HAIL
06/09/99   YORK                           2W YORK I-80 INTERCHANGE

LEW
Local storm report, Jun 9, 8:18 PM CDT, 47 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE  HASTINGS NE
818 PM CDT WED JUN 9 1999

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0813 PM    YORK                      NE   1.75 INCH HAIL
06/09/99   YORK                           2W YORK I-80 INTERCHANGE

LEW

The office that day

Everything else NWS Hastings, NE issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 9, 7:00 PM CDTSevere Thunderstorm WarningGIDHamilton45 min
Jun 9, 7:14 PM CDTSevere Thunderstorm WarningGIDYork31 min
Jun 9, 7:41 PM CDTSevere Thunderstorm WarningGIDYork49 min
Jun 9, 8:27 PM CDTSevere Thunderstorm WarningGIDYork48 min
Jun 9, 9:30 PM CDTTornado WarningGIDFillmore, York30 min
Jun 9, 9:58 PM CDTFlash Flood WarningGIDYork3 hr
Jun 9, 11:09 PM CDTFlash Flood WarningGIDHamilton2 hr

Nearby

Tornado Warnings in Nebraska, 1999Every tornado warning in 1999Tornadoes in 1999

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.