Alert archive / Nebraska / Tornado Warnings in 1999
Tornado Warning 52, NWS Hastings, NE
NWS Hastings, NE issued this tornado warning at Sep 11, 1999, 4:05 PM CDT for Gosper 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
- Sep 11, 1999, 4:05 PM CDT (21:05 UTC)
- Expired
- Sep 11, 1999, 4:30 PM CDT
- In force
- 25 min
- Issued by
- NWS Hastings, NE
- Area
- Whole counties
County Gosper County, NE
The radar
The Grand Island radar (KUEX), 120 km from the middle of the area, began a volume at 21:08 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Sep 11, 4:05 PM CDT | Tornado F0 | Elwood, 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
N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 9.1 hours before the alert went out and 94 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
- 56 J/kg
- Mixed-layer CIN
- -371 J/kg
- Mixed-layer LCL
- 1568 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 122 m²/s²
- 0-3 km storm-relative helicity
- 117 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 KGRI 112109 TORGRI NEC073-112130- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE HASTINGS NE 405 PM CDT SAT SEP 11 1999 THE NATIONAL WEATHER SERVICE IN HASTINGS HAS ISSUED A * TORNADO WARNING FOR PEOPLE IN... SOUTHEASTERN GOSPER COUNTY IN SOUTH CENTRAL NEBRASKA * UNTIL 430 PM CDT * AT 405 PM CDT...TRAINED WEATHER SPOTTERS AND DOPPLER RADAR INDICATED A DEVELOPING TORNADO 22 MILES WEST OF HOLDREGE...MOVING EAST AT 15 MPH. THIS IS AN EXTREMELY DANGEROUS SITUATION. A TORNADO HAS BEEN SIGHTED. PEOPLE IN SOUTHEASTERN GOSPER COUNTY SHOULD TAKE SHELTER IMMEDIATELY IN A BASEMENT OR SMALL INTERIOR ROOM ON THE LOWEST FLOOR. IF YOU ARE CAUGHT OUTSIDE...SEEK SHELxTER IN A NEARBY BUILDING. AS A LAST RESORT...SEEK SHELTER IN A DITCH OR LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS. $$ & DDN
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 Sep 11, 2:20 PM CDT, 1 hour 45 minutes earlier.
Area forecast discussion, Sep 11, 2:20 PM CDT, 1 hour 45 minutes before
SOUTH CENTRAL NEBRASKA/NORTH CENTRAL KANSAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE HASTINGS NE 220 PM CDT SAT SEP 11 1999 UPR LOW CNTRD OVR MT THIS AFTN CONTS ITS SEWD DIG WITH SFC CDFNT MOVG INTO NWRN NEB. LOW CLOUDS HAVE BLANKETED THE CWA THRU THE DAY AND KEPT STABILITY INDICES LOW. -SHRA HAVE THREATENED NWRN CWA THRU THE DAY AND AN ISOLD TSTM POPPED UP JUST WEST OF MCCOOK NR PRESS TIME. EXPECT TSRA TO CONT DVLPG THRU THE EVE AS MID-LVL TMPS DROP AND UPR DVRGNC INCRS. BEST CHC FOR SVR LKS TO BE OVR ERN CNTIES OF CWA ON UPSTREAM END OF DIFLUENCE AREA PROGGD OVR ERN NEB AND IA. CDFNT DUE IN GRI AREA ARND MIDNGT AND THRU ENTIRE CWA BEFORE THE SKY LIGHTENS. INTEND TO KP CHC SHRA THRU THE NGT AND OVR KS COUNTIES INTO SUN MRNG. WITH HEALTHY DOWNSLOPE AND TIGHT PRES GRADIENT DVLPG...WL STAY WITH THE CURRENT WINDY DESCRIPTOR FOR TNGT AND SUN. MDLS AGREE ON DRIER AIR WORKING ITS WAY ACRS CNTRL NEB ON SUN MRNG AND INTO KS CNTIES BY AFTN. PTCLDY IN THE AFTN SEEMS APPROPRIATE WITH CONVECTIVE TMPS IN THE 60S. WL BE CLOSER TO FAN GUIDANCE ON THE TMP FORECAST AS FWC SEEMS WARM WITH AFORE MENTIONED WIND AND CLD FORECAST THRU THE FP. WL SLOWLY MODERATE THE EFP TMPS ON WED AND THU AS UPR LOW MOVS BEYOND THE GREAT LAKES AND SFC HIGH SLIDES EWD. .GID...NONE. 09
In the hours before
Special weather statement, Sep 11, 11:35 AM CDT, 4 hours 30 minutes before
KSZ005>007-017>019-NEZ039>041-046>049-060>064-072>077-082>087-112130- SEVERE WEATHER OUTLOOK - SOUTH CENTRAL NEBRASKA/NORTH CENTRAL KANSAS NATIONAL WEATHER SERVICE HASTINGS NE 1135 AM CDT SAT SEP 11 1999 ...SPOTTER ACTIVATION MAY BE NEED LATE THIS AFTERNOON INTO THIS EVENING ACROSS THE REGION... A STRONG UPPER LEVEL DISTURBANCE WILL PROGRESS EAST INTO THE AREA THIS EVENING. THIS WILL PROVIDE FAVORABLE CONDITIONS FOR THUNDERSTORM DEVELOPMENT. SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP INITIALLY ALONG A SURFACE TROUGH WHICH EXTENDS FROM NEAR BROKEN BOW TO MCCOOK. ANY SEVERE WEATHER ASSOCIATED WITH THIS TROUGH WILL LIKELY HOLD OFF UNTIL AFTER 300 PM. BY 800 PM...A STRONG COLD FRONT WILL WORK INTO THE LEXINGTON AND ORD AREAS. THIS FRONT WILL ALSO RESULT IN SCATTERED THUNDERSTORM ACTIVITY. IT SHOULD PROGRESS INTO GRAND ISLAND AND HASTINGS BY ABOUT 1100 PM AND THEN EXIT PARTS OF NORTH CENTRAL KANSAS AFTER 300 AM. AGAIN...A FEW STORMS ASSOCIATED WITH THIS FRONT COULD BE SEVERE. THE PRIMARY SEVERE WEATHER THREAT WILL BE LARGE HAIL. HOWEVER... DAMAGING WIND WILL ALSO BE POSSIBLE DUE TO THE STRENGTH ATMOSPHERIC WINDS ASSOCIATED WITH THIS STRONG DISTURBANCE. IT SHOULD BE NOTED THAT THE THREAT OF SEVERE WEATHER WILL BE HIGHLY DEPENDENT ON THE AMOUNT OF SUNSHINE ACROSS THE AREA THIS AFTERNOON. LOW CLOUDS AND FOG ARE EXPECTED TO GRADUALLY LIFT EARLY THIS AFTERNOON. IF THIS DOES NOT OCCUR...AN UPDATE TO THIS OUTLOOK MAY BE NEEDED DURING THE AFTERNOON. DEG
Special weather statement, Sep 11, 11:39 AM CDT, 4 hours 26 minutes before
KSZ005>007-017>019-NEZ039>041-046>049-060>064-072>077-082>087-112130- SEVERE WEATHER OUTLOOK - SOUTH CENTRAL NEBRASKA/NORTH CENTRAL KANSAS NATIONAL WEATHER SERVICE HASTINGS NE 1139 AM CDT SAT SEP 11 1999 ...SPOTTER ACTIVATION MAY BE NEED LATE THIS AFTERNOON INTO THIS EVENING ACROSS THE REGION... A STRONG UPPER LEVEL DISTURBANCE WILL PROGRESS EAST INTO THE AREA THIS EVENING. THIS WILL PROVIDE FAVORABLE CONDITIONS FOR THUNDERSTORM DEVELOPMENT. SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP INITIALLY ALONG A SURFACE TROUGH WHICH EXTENDS FROM NEAR BROKEN BOW TO MCCOOK. ANY SEVERE WEATHER ASSOCIATED WITH THIS TROUGH WILL LIKELY HOLD OFF UNTIL AFTER 300 PM. BY 800 PM...A STRONG COLD FRONT WILL WORK INTO THE LEXINGTON AND ORD AREAS. THIS FRONT WILL ALSO RESULT IN SCATTERED THUNDERSTORM ACTIVITY. IT SHOULD PROGRESS INTO GRAND ISLAND AND HASTINGS BY ABOUT 1100 PM AND THEN EXIT PARTS OF NORTH CENTRAL KANSAS AFTER 300 AM. AGAIN...A FEW STORMS ASSOCIATED WITH THIS FRONT COULD BE SEVERE. THE PRIMARY SEVERE WEATHER THREAT WILL BE LARGE HAIL. HOWEVER... DAMAGING WIND WILL ALSO BE POSSIBLE DUE TO THE STRENGTH OF THE ATMOSPHERIC WINDS ASSOCIATED WITH THIS STRONG DISTURBANCE. IT SHOULD BE NOTED THAT THE THREAT OF SEVERE WEATHER WILL BE HIGHLY DEPENDENT ON THE AMOUNT OF SUNSHINE ACROSS THE AREA THIS AFTERNOON. LOW CLOUDS AND FOG ARE EXPECTED TO GRADUALLY LIFT EARLY THIS AFTERNOON. IF THIS DOES NOT OCCUR...AN UPDATE TO THIS OUTLOOK MAY BE NEEDED DURING THE AFTERNOON. DEG
Special weather statement, Sep 11, 11:39 AM CDT, 4 hours 26 minutes before
KSZ005>007-017>019-NEZ039>041-046>049-060>064-072>077-082>087-112130- SEVERE WEATHER OUTLOOK - SOUTH CENTRAL NEBRASKA/NORTH CENTRAL KANSAS NATIONAL WEATHER SERVICE HASTINGS NE 1139 AM CDT SAT SEP 11 1999 ...SPOTTER ACTIVATION MAY BE NEED LATE THIS AFTERNOON INTO THIS EVENING ACROSS THE REGION... A STRONG UPPER LEVEL DISTURBANCE WILL PROGRESS EAST INTO THE AREA THIS EVENING. THIS WILL PROVIDE FAVORABLE CONDITIONS FOR THUNDERSTORM DEVELOPMENT. SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP INITIALLY ALONG A SURFACE TROUGH WHICH EXTENDS FROM NEAR BROKEN BOW TO MCCOOK. ANY SEVERE WEATHER ASSOCIATED WITH THIS TROUGH WILL LIKELY HOLD OFF UNTIL AFTER 300 PM. BY 800 PM...A STRONG COLD FRONT WILL WORK INTO THE LEXINGTON AND ORD AREAS. THIS FRONT WILL ALSO RESULT IN SCATTERED THUNDERSTORM ACTIVITY. IT SHOULD PROGRESS INTO GRAND ISLAND AND HASTINGS BY ABOUT 1100 PM AND THEN EXIT PARTS OF NORTH CENTRAL KANSAS AFTER 300 AM. AGAIN...A FEW STORMS ASSOCIATED WITH THIS FRONT COULD BE SEVERE. THE PRIMARY SEVERE WEATHER THREAT WILL BE LARGE HAIL. HOWEVER... DAMAGING WIND WILL ALSO BE POSSIBLE DUE TO THE STRENGTH OF THE ATMOSPHERIC WINDS ASSOCIATED WITH THIS STRONG DISTURBANCE. IT SHOULD BE NOTED THAT THE THREAT OF SEVERE WEATHER WILL BE HIGHLY DEPENDENT ON THE AMOUNT OF SUNSHINE ACROSS THE AREA THIS AFTERNOON. LOW CLOUDS AND FOG ARE EXPECTED TO GRADUALLY LIFT EARLY THIS AFTERNOON. IF THIS DOES NOT OCCUR...AN UPDATE TO THIS OUTLOOK MAY BE NEEDED DURING THE AFTERNOON. DEG
The office that day
Everything else NWS Hastings, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 11, 4:11 PM CDT | Tornado Warning | GID | Phelps | 49 min |
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; radar from the NEXRAD Level II archive.