Alert archive / Nebraska / Tornado Warnings in 1999
Tornado Warning 3, NWS Hastings, NE
NWS Hastings, NE issued this tornado warning at Apr 21, 1999, 11:56 AM CDT for Howard County, Nebraska. It was in force for 49 min. 2 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
- Apr 21, 1999, 11:56 AM CDT (16:56 UTC)
- Expired
- Apr 21, 1999, 12:45 PM CDT
- In force
- 49 min
- Issued by
- NWS Hastings, NE
- Area
- Whole counties
County Howard County, NE
The radar
The Grand Island radar (KUEX), 100 km from the middle of the area, began a volume at 16:58 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 |
|---|---|---|---|
| Apr 21, 12:15 PM CDT | Tornado F0 | St Paul, NE | |
| Apr 21, 12:28 PM CDT | Hail 0.75 | St Paul, 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, 4.9 hours before the alert went out and 175 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
- 1875 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 195 m²/s²
- 0-3 km storm-relative helicity
- 291 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
999 WFUS1 KGRI 211658 RRA TORGRI NEC093-211745- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE HASTINGS NE 1156 AM CDT WED APR 21 1999 THE NATIONAL WEATHER SERVICE IN HASTINGS HAS ISSUED A * TORNADO WARNING FOR PEOPLE IN... HOWARD COUNTY IN CENTRAL NEBRASKA * UNTIL 1245 PM CDT * AT 1156 AM CDT...TRAINED WEATHER SPOTTERS REPORTED A TORNADO 17 MILES NORTHWEST OF GRAND ISLAND...OR OVER DANNEBROG...MOVING NORTHEAST AT 30 MPH. * TORNADO IS EXPECTED TO BE NEAR... ST PAUL AT 1215 PM CUSHING AT 1220 PM TAKE SHELTER IMMEDIATELY IN A BASEMENT OR GO TO A SMALL INTERIOR ROOM ON THE LOWEST FLOOR. GET UNDER A STURDY PIECE OF FURNITURE AND COVER YOUR HEAD WITH A BLANKET OR PILLOW. STAY AWAY FROM WINDOWS. & EWALD
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 Apr 21, 2:38 AM CDT, 9 hours 18 minutes earlier.
Area forecast discussion, Apr 21, 2:38 AM CDT, 9 hours 18 minutes before
SOUTH CENTRAL NEBRASKA/NORTH CENTRAL KANSAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE HASTINGS NE 238 AM CDT WED APR 21 1999 PRECIPITATION TIMING DIFFICULTIES HIGHLIGHT CURRENT FORECAST QUANDRY. SURFACE ANALYSIS SHOWED MAIN FRONTAL BOUNDARY PARKED E/W ACROSS SOUTHERN KANSAS AT 06Z. A SUBTLE TROUGH BISSECTED CWA CONNECTING LOW PRESSURE OVER CO TO WEAK LOW IN SIOUXLAND AREA. BOUNDARY OF COOLER AIR ACROSS SDAK. MOISTURE BECOMING ADEQUATE ACROSS AREA TO SUSTAIN CONVECTION. 850 DEW POINTS IN THE POSITIVE SIGITS. SFC DEW POINTS STILL IN THE 40S BUT 50S KNOCKING AT THE DOOR AND AVAILABE TO OVERRUN SOUTHERN BOUNDARY. MEANWHILE...PROFS/SAT SHOW A COUPLE OF SHORT WAVES APPROACHING. FIRST RIGHT ALONG FRONT RANGE WITH ANOTHER CLOSE BEHIND. MAIN COOL CORE ALOFT OVER PACIFIC NW WITH JET DIVING ALONG PAC COAST. MODELS HAVE THEIR DIFFERENCES BUT IN ESSENCE SLIDE S/W ENERGY ACROSS AREA TODAY WITH PATTERN BECOMING INCREASINGLY DIFFLUENT ALOFT. NORTHERN AREAS IN BEST SATURATION AND SHOWERS/SOME THUNDER LIKELY. BEST INSTABILITY/MOISTURE CONTENT FOR TSTMS ACROSS SE. OVERALL...NGM MOST REASONABLE. SEE NATIONAL DISCUSSIONS FOR HIGHLIGHTS OF SPECIFIC DIFFERENCES. IT WOULD SEEM THAT AFTER POSSIBILTY OF LEFTOVER CONVECTION EARLY TONIGHT THAT RAIN CHANCES DECREASE OVERNIGHT AS FLOW BECOMES NORTHERLY BEHIND SHORT WAVE. MODELS BRING ANOTHER SHORT WAVE ON THE NOSE OF THE JET AROUND THE BASE OF THE EVOLVING SW US TROUGH ONTO THE PLAINS THURSDAY/THURSDAY NIGHT. THIS TIMING IS STILL VERY MUCH IN DOUBT BUT POTENTIAL SHOULD BE SETTING UP FOR ROUND OF FAIRLY HEAVY RAIN OVER CWA AT THAT TIME. WILL ATTEMPT TO BETTER TIME RAIN IN TEXT WITH LEAST EMPHASIS ON LATE TONIGHT/THURSDAY MORNING. GUIDANCE TEMPERATURES SEEM TO HAVE GOOD HANDLE ON SITUATION. .GID...NONE DROZD
In the hours before
Special weather statement, Apr 21, 11:21 AM CDT, 35 minutes before
KSZ005>007-017>019-NEZ039>041-046>049-060>064-072>077-082>087-221200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HASTINGS NE 1121 AM CDT WED APR 21 1999 ...SEVERE WEATHER OUTLOOK FOR SOUTH CENTRAL NEBRASKA AND PART OF NORTH CENTRAL KANSAS... SPOTTER ACTION... SPOTTER ACTIVATION MAY BE NEEDED THIS AFTERNOON AND TONIGHT. SYNOPSIS... LOW PRESSURE OVER KANSAS WILL INTENSIFY THIS AFTERNOON AND TONIGHT ALONG A STATIONARY FRONT WHICH WAS DRAPED THROUGH CENTRAL KANSAS... THEN EASTWARD INTO MISSOURI AND ILLINOIS. THE ATMOSPHERE WILL BECOME SUFFICIENTLY UNSTABLE AS STRONG SOUTHERLY WINDS AHEAD OF THIS LOW PRESSURE SYSTEM PULLS WARM...MOIST AIR UP FROM THE GULF INTO THE REGION...ALLOWING FOR SOME SHOWERS AND THUNDERSTORMS TO DEVELOP. SOME OF THESE STORMS MAY BECOME SEVERE WITH LARGE HAIL AND DAMAGING WINDS BEING THE MAIN THREAT. && DEE
Special weather statement, Apr 21, 11:21 AM CDT, 35 minutes before
KSZ005>007-017>019-NEZ039>041-046>049-060>064-072>077-082>087-221200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HASTINGS NE 1121 AM CDT WED APR 21 1999 ...SEVERE WEATHER OUTLOOK FOR SOUTH CENTRAL NEBRASKA AND PART OF NORTH CENTRAL KANSAS... SPOTTER ACTION... SPOTTER ACTIVATION MAY BE NEEDED THIS AFTERNOON AND TONIGHT. SYNOPSIS... LOW PRESSURE OVER KANSAS WILL INTENSIFY THIS AFTERNOON AND TONIGHT ALONG A STATIONARY FRONT WHICH WAS DRAPED THROUGH CENTRAL KANSAS... THEN EASTWARD INTO MISSOURI AND ILLINOIS. THE ATMOSPHERE WILL BECOME SUFFICIENTLY UNSTABLE AS STRONG SOUTHERLY WINDS AHEAD OF THIS LOW PRESSURE SYSTEM PULLS WARM...MOIST AIR UP FROM THE GULF INTO THE REGION...ALLOWING FOR SOME SHOWERS AND THUNDERSTORMS TO DEVELOP. SOME OF THESE STORMS MAY BECOME SEVERE WITH LARGE HAIL AND DAMAGING WINDS BEING THE MAIN THREAT. && DEE
The office that day
Everything else NWS Hastings, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 21, 9:03 AM CDT | Severe Thunderstorm Warning | GID | Phelps | 42 min |
| Apr 21, 9:24 AM CDT | Severe Thunderstorm Warning | GID | Dawson | 66 min |
| Apr 21, 9:44 AM CDT | Severe Thunderstorm Warning | GID | Buffalo | 61 min |
| Apr 21, 10:46 AM CDT | Severe Thunderstorm Warning | GID | Buffalo | 29 min |
| Apr 21, 11:10 AM CDT | Severe Thunderstorm Warning | GID | Buffalo, Sherman | 50 min |
| Apr 21, 11:36 AM CDT | Severe Thunderstorm Warning | GID | Howard | 54 min |
| Apr 21, 12:12 PM CDT | Tornado Warning | GID | Greeley | 48 min |
| Apr 21, 12:13 PM CDT | Severe Thunderstorm Warning | GID | Nance | 47 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.