Alert archive / Nebraska / Tornado Warnings in 1999
Tornado Warning 33, NWS Hastings, NE
NWS Hastings, NE issued this tornado warning at May 30, 1999, 7:55 PM CDT for Clay County, Nebraska. It was in force for 35 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
- May 30, 1999, 7:55 PM CDT (00:55 UTC)
- Expired
- May 30, 1999, 8:30 PM CDT
- In force
- 35 min
- Issued by
- NWS Hastings, NE
- Area
- Whole counties
County Clay County, NE
The radar
The Grand Island radar (KUEX), 40 km from the middle of the area, began a volume at 00:57 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 |
|---|---|---|---|
| May 30, 8:15 PM CDT | Hail 1.5 | Clay Center, 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, 0.9 hours before the alert went out and 167 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
- 12 J/kg
- Mixed-layer CIN
- -206 J/kg
- Mixed-layer LCL
- 1203 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 35 m²/s²
- 0-3 km storm-relative helicity
- -18 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 310056 RRA TORGRI NEC035-310130- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE HASTINGS NE 755 PM CDT SUN MAY 30 1999 THE NATIONAL WEATHER SERVICE IN HASTINGS HAS ISSUED A * TORNADO WARNING FOR PEOPLE IN... NORTHWESTERN CLAY COUNTY IN SOUTH CENTRAL NEBRASKA * UNTIL 830 PM CDT * AT 755 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A DEVELOPING TORNADO 13 MILES NORTHEAST OF HASTINGS...OR 9 MILES NORTH OF INLAND...MOVING SOUTHEAST AT 15 MPH. * TORNADO IS EXPECTED TO BE NEAR... INLAND AT 815 PM HARVARD AT 830 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. $$ 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 May 30, 1:27 PM CDT, 6 hours 28 minutes earlier.
Area forecast discussion, May 30, 1:27 PM CDT, 6 hours 28 minutes before
SOUTH CENTRAL NEBRASKA/NORTH CENTRAL KANSAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE HASTINGS NE 127 PM CDT SUN MAY 30 1999 ...MCS TRACKS/FRONTAL POSITION MAIN QUESTION... MORNING TSTORMS RESULTED IN TEMPORARY MESO-HIGH OVER THE CWA THIS AFTERNOON. HOWEVER RESULTING BOUNDARIES ALL OVER THE PLACE WILL ADD TO DIFFICULTLY IN PRECIP PLACEMENT LATER TODAY AS STORMS REFIRE ALONG FRONT AND DRY LINE TO WEST. WAA AND MOISTURE ADVECTION ALREADY OCCURRING AND CAPES UP TO 2400 INPLACE IN NORTHERN KANSAS. STRONG GRADIENT EXISTS BETWEEN COOLER TEMPS AND WARM AIR TO THE SOUTH ALONG THE NE/KS BORDER. ATMOSPHERE SHOULD HAVE NO PROBLEM DESTABILIZING THE ENTIRE CWA LATER THIS AFTERNOON AND TONIGHT. MODELS/QPF DISCUSSIONS HAVE GOOD HANDLE ON DEVELOPING MCS THIS EVENING IN WESTERN NEBRASKA AND DRIVING IT ESE INTO SOUTH CENTRAL NEBRASKA OVERNIGHT. IF OUTFLOW IS STRONG ENOUGH COLD FRONT WILL LIKELY BE PUSHED SOUTH OF THE BORDER BY MIDDAY TOMORROW BUT STALL SOMEWHERE IN NORTHERN OR CENTRAL KANSAS. QUESTION WILL BE HOW FAR SOUTH IT ENDS UP AND THE TRACK NEXT SHORTWAVE MONDAY NIGHT TAKES. ETA/NGM FAIRLY CLOSE ON MCS DEVELOPMENT BUT NOT RAIN COVERAGE TONIGHT AND TOMORROW NIGHT WITH NGM A LITTLE FARTHER NORTH AND AHEAD OF ETA. LOOKS LIKE FRONT WILL ACTUALLY MAKES IT TO AT LEAST NORTHERN KANSAS BEFORE QUICKLY REBOUNDING BY MONDAY EVENING AS NEXT MCS ROLLS THROUGH. PREMARD DISCUSSION SEEMS TO AGREE WITH DUAL MCS ACTIVITY AND TIMING. BOTTOM LINE IS PRECIP CHANCES GOOD THROUGH TUESDAY MORNING WHEN LAST OF SERIES OF WAVES PUSHES THROUGH. AS FAR AS THE FORECAST WORDING GOES WILL COVER THE CWA TONIGHT AND TOMORROW NIGHT WITH LIKELY WORDING BUT KEEP POPS DURING MONDAY AT LEAST 50/50 FOR NOW WITH CHANCES TUESDAY MORNING AS WELL. ATTM HEAVY RAIN SEEMS TO BE MAIN THREAT WITH PW 1 TO 1.5 INCHES AND WEAK WINDS ALOFT THROUGH THE PERIOD. WITH MORNING STABILIZATION THINK MAIN CHANCES FOR DAMAGING HAIL AND STRONG WINDS WILL BE ON PERIPHERY OF MESO-HIGH TO THE WEST AND SOUTH. BEST POSSIBILITIES FOR HAIL AND DAMAGING WINDS RESIDE WITH ROGUE STORMS PRECEDING THE MCS THIS LATER THIS AFTERNOON. FWC PROBABLY TO WARM IN NORTHERN KANSAS TOMORROW AS FRONT SHOULD GET THROUGH THERE AT LEAST. WILL STICK CLOSER TO FAN GUIDANCE FOR THE MOMENT AS FWC TO EXTREME. IN EXTENDED...AFTER TUESDAY MORNING...SOME DRYING IS POSSIBLE BUT WITH TROUGH WEST IT IS HARD TO TAKE OUT CHANCES COMPLETELY...THUS WILL KEEP CHANCES IN THURSDAY AND FRIDAY. LOOKS WARMER THROUGH LATTER PART OF THE WEEK. .GID...NONE. 10
The office that day
Everything else NWS Hastings, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 30, 7:06 PM CDT | Severe Thunderstorm Warning | GID | Dawson | 39 min |
| May 30, 7:24 PM CDT | Severe Thunderstorm Warning | GID | Hamilton | 51 min |
| May 30, 7:40 PM CDT | Tornado Warning | GID | Hamilton | 35 min |
| May 30, 7:43 PM CDT | Severe Thunderstorm Warning | GID | Dawson, Gosper, Phelps | 47 min |
| May 30, 8:00 PM CDT | Tornado Warning | GID | Phelps | 30 min |
| May 30, 8:09 PM CDT | Severe Thunderstorm Warning | GID | Howard, Sherman | 51 min |
| May 30, 8:13 PM CDT | Severe Thunderstorm Warning | GID | Thayer | 47 min |
| May 30, 8:26 PM CDT | Tornado Warning | GID | Harlan, Phelps | 34 min |
| May 30, 8:56 PM CDT | Severe Thunderstorm Warning | GID | Harlan | 49 min |
| May 30, 8:58 PM CDT | Severe Thunderstorm Warning | GID | Thayer | 62 min |
| May 30, 9:05 PM CDT | Severe Thunderstorm Warning | GID | Hall, Howard | 40 min |
| May 30, 9:29 PM CDT | Severe Thunderstorm Warning | GID | Franklin | 46 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.