Alert archive / Nebraska / Tornado Warnings in 1999
Tornado Warning 46, NWS Hastings, NE
NWS Hastings, NE issued this tornado warning at Aug 10, 1999, 8:37 PM CDT for Harlan County, Nebraska; Phillips County, Kansas. It was in force for 38 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
- Aug 10, 1999, 8:37 PM CDT (01:37 UTC)
- Expired
- Aug 10, 1999, 9:15 PM CDT
- In force
- 38 min
- Issued by
- NWS Hastings, NE
- Area
- Whole counties
Counties Phillips County, KS, Harlan County, NE
The radar
The Grand Island radar (KUEX), 88 km from the middle of the area, began a volume at 01:39 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
N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 1.6 hours before the alert went out and 164 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
- 1568 J/kg
- Mixed-layer CIN
- -57 J/kg
- Mixed-layer LCL
- 1522 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 62 m²/s²
- 0-3 km storm-relative helicity
- 110 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 1.8
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KGRI 110136 RRA TORGRI KSC147-NEC083-110215- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE HASTINGS NE 837 PM CDT TUE AUG 10 1999 THE NATIONAL WEATHER SERVICE IN HASTINGS HAS ISSUED A * TORNADO WARNING FOR PEOPLE IN... NORTHWESTERN PHILLIPS COUNTY IN NORTH CENTRAL KANSAS SOUTHWESTERN HARLAN COUNTY IN SOUTH CENTRAL NEBRASKA * UNTIL 915 PM CDT * AT 833 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A DEVELOPING TORNADO 19 MILES NORTHWEST OF PHILLIPSBURG...OR 2 MILES NORTHWEST OF LONG ISLAND...MOVING NORTH AT 10 MPH. THIS STORM IS EXPECTED TO REMAIN OVER RURAL AREAS NORTH OF LONG ISLAND. PEOPLE IN NORTHWESTERN PHILLIPS AND SOUTHWESTERN HARLAN 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. N $$
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 Aug 10, 2:46 PM CDT, 5 hours 51 minutes earlier.
Area forecast discussion, Aug 10, 2:46 PM CDT, 5 hours 51 minutes before
SOUTH CENTRAL NEBRASKA/NORTH CENTRAL KANSAS FORECAST DISCUSSION... NATIONAL WEATHER SERVICE HASTINGS NE 246 PM CDT TUE AUG 10 1999 ...CHANCE FOR PRECIP AND EFFECT ON WED TEMPS CONCERN THIS FCST... TDA LOOKS TO BE THE LAST TRANQUIL DAY AS UPPER SYSTEM OFF CA COAST FCST TO WEAKEN AND PUSH ENE. AHEAD OF IT SEVERAL SHORTWAVES TO AFFECT OUR AREA WITH THE DIFFICULTY BEING THE TIMING AND LOCATION. FIRST ONE ROTATING NNE THRU NM INTO CO THIS MORNING SHOULD IMPACT US TONIGHT. ETA PRETTY ROBUST WITH THIS WAVE AS IT SLIDES THRU CWA LATER TONIGHT INTO WED. HIGHER OMEGA VALUES FURTHER SOUTH IN AREA OF WARM ADVECTION WHICH SEEMS REASONABLE WITH LOW LEVEL JET SETTING UP FROM WESTERN PART OF CWA LATER THIS EVENING AND KEEP IT MORE OVER WEST UNTIL 12Z WED. HPC NOTES POSSIBLE MCS SETTING UP OVER WESTERN NEB TNGHT AND PUSHING EAST. SFC BNDRY TOUGH TO LOCATE IN KS...AND PROBABLY BEST SEEN WITH DEVELOPING CU FIELD ON VIS IMAGE. WHILE MODELS DIFFER QUITE A BIT ON AMOUNT OF PRECIP...ETA AND NGM DUMP A LOT WHILE AVN MORE MODEST...THEY AGREE SOMEWHAT ON PUSHING IT THROUGH CWA WEST TO EAST ON WED. THIS TO HAVE BIG EFFECT ON TEMPS AS LINGERING CLOUDS/SHOWERS COULD HOLD MERCURY DOWN. WILL GO HIGHER IN WEST THAN EAST ON WED. WILL ALSO KEEP TSTM CHC GOING WED/WED NIGHT AS UPPER WINDS INCR AND EXPECT BNDRYS TO REMAIN FROM OVERNIGHT. THURS COULD ALSO BE INTERESTING WITH COLD FRONT PASSAGE AND SHORTWV ENERGY MOVING ACROSS JUST TO THE NORTH. THINGS LOOK TO DRY OUT FRI INTO THE WEEKEND. SFC FRONT COULD MOVE IN ON SUNDAY AND KICK OFF TSTMS...BUT WILL KEEP DRY FOR NOW. .GID...NONE. EWALD
The office that day
Everything else NWS Hastings, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 10, 11:27 PM CDT | Severe Thunderstorm Warning | GID | Dawson, Gosper | 63 min |
| Aug 11, 12:14 AM CDT | Severe Thunderstorm Warning | GID | Buffalo, Phelps | 61 min |
| Aug 11, 12:32 AM CDT | Severe Thunderstorm Warning | GID | Dawson | 43 min |
| Aug 11, 1:55 AM CDT | Severe Thunderstorm Warning | GID | Furnas | 50 min |
| Aug 11, 5:34 PM CDT | Severe Thunderstorm Warning | GID | Furnas, Harlan | 41 min |
| Aug 11, 4:31 AM CDT | Severe Thunderstorm Warning | GID | Jewell | 44 min |
Nearby
Tornado Warnings in Nebraska, 1999Tornado Warnings in Kansas, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.