Alert archive / Nebraska / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 260, NWS North Platte, NE
NWS North Platte, NE issued this severe thunderstorm warning at Aug 30, 1998, 5:19 PM MDT for Cherry County, Nebraska. It was in force for 66 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 30, 1998, 5:19 PM MDT (23:19 UTC)
- Expired
- Aug 30, 1998, 6:25 PM MDT
- In force
- 66 min
- Issued by
- NWS North Platte, NE
- Area
- Whole counties
County Cherry County, NE
The radar
The North Platte radar (KLNX), 79 km from the middle of the area, began a volume at 23:22 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 12:00Z, 11.3 hours before the alert went out and 163 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
- 2813 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- -156 m²/s²
- 0-3 km storm-relative helicity
- -183 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 KLBF 302319 RRA SVRLBF NEC031-310025- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE NORTH PLATTE NE 619 PM CDT (519 PM MDT) SUN AUG 30 1998 THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CENTRAL AND EASTERN CHERRY COUNTY IN NORTH CENTRAL NEBRASKA * UNTIL 725 PM CDT * AT 618 PM CDT... NORTH PLATTE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 32 MILES NORTH OF MULLEN OR 9 MILES SOUTHWEST OF MERRITT RESERVOIR MOVING EAST AT 10 MPH. * DAMAGING HAIL AND/OR DESTRUCTIVE WINDS CAN BE EXPECTED NEAR... MERRITT RESERVOIR BY 650 PM CDT DAMAGING WINDS AND LARGE HAIL ARE LIKELY. GO INSIDE A STURDY BUILDIN8G AND STAY AWAY FROM WINDOWS! SPRINGER
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS North Platte, NE wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 30, 1:35 PM MDT, 3 hours 44 minutes earlier.
Area forecast discussion, Aug 30, 1:35 PM MDT, 3 hours 44 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE NORTH PLATTE NE 235 PM CDT SUN AUG 30 1998 ...FORECAST CHALLENGE IS CHANCES FOR THUNDERSTORMS TONIGHT AND EARLY MONDAY... AT 17Z WARM FRONT WAS FROM SNY THROUGH LBF. ACCAS ASSOCIATED WITH WEAK VORT LOBE OVER N CENTRAL CO AT 12Z SEEN ON 2 KM VIS AND KLBF 88D MOVING THROUGH CENTRAL CWFA. MAIN FOCUS IS STRONGER SHORTWAVE IN CENTRAL MT AT 12Z WITH VORT LOBE EXTENDING INTO N CENTRAL WY AT 12Z. MODELS IN CLOSE AGREEMENT WITH LOCATION OF H5 FEATURES THROUGH 24 HOURS...THEN NGM HAS VORT MAX IN SW NE COMPARED TO ETA WHICH HAS IT IN THE NORTHEAST. AVN NEARLY LOOSES FEATURE AT 36 HOURS. RIGHT NOW...ETA LOOKS LIKE BEST COMPROMISE SCENARIO AND GENERALLY FOLLOWED. TONIGHT...WARM FRONT WILL LIFT TO ABOUT VTN TO BBW LINE BY 06Z WITH H8 FRONT CLOSER TO SD BORDER. INITIALLY...LACK OF MOISTURE BECLOW H5 LOOKS TO BE INHIBITING FACTOR FOR THUNDERSTORMS. LOW LEVEL JET DEPICTED BY ETA TO DEVELOP TONIGHT BRING 60 TO 70 PERCENT RH ALONG 850 FRONT BY 12Z MONDAY. MAIN ENERGY FROM SHORTWAVE IN NW FLOW DOES NOT REACH N CENTRAL UNTIL 12Z TO 18Z MONDAY. AREA OF DRYING SEEN ON WV MOVING INTO SW SD AND NEB PANHANDLE SHOULD SET OFF INITIAL ROUND OF THUNDERSTORMS BY EVENING WHICH WILL LIKELY PROPAGATE ACROSS N CENTRAL AND POSSIBLE CENTRAL ZONES TONIGHT AND GO WITH HIGHEST POPS IN N CENTRAL AND LOW SCATTERED TO SOUTH. WILL KEEP REST OF CWFA IN ISOLATED POPS. DIURNAL TIMING OF MAIN ENERGY FROM SHORTWAVE WILL LIMIT CONVECTION EARLY MONDAY...BUT MOISTURE CONVERGENCE ALONG THE FRONT SHOULD ALLOW FOR SCATTERED SHOWERS AND THUNDERSTORMS THORUGH MORNING HOURS IN FAR NORTH/NE. N CENTRAL AND PANHANDLE SHOULD DRY OUT MONDAY AFTERNOON WITH INVERTED SURFACE RIDGE BUILDING INTO AREA FROM WY AND MT. CANNOT RULE OUT ISOLATED AFTERNOON CONVECTION IN NE THROUGH SOUTH WITH FRONT SETTLING BACK SOUTH ACROSS AREA AND WILL INTRODUCE LOW POPS THERE. CLOUDS EARLY SHOULD LIMIT HIGHS MONDAY AND FAVOR COOLER FAN TEMPERATURES. MONDAY NIGHT SHOULD BE MOSTLY CLEAR AND COOL AND FAN NUMBERS ALSO FAVORED. RUNNING OUT OF TIME FOR MUCH DISCUSSION INTO TUESDAY AND WILL GO ALONG WITH GUIDANCE OF ISOLATED POPS FOR AFTERNOON CONVECTION AHEAD OF COLD FRONT DROPPING SOUTH INTO AREA. PRELIMINARY GUIDANCE FOR COORDINATION ONLY. OFFICIAL FORECASTS ARE CONTAINED WITHIN PRODUCT OMAZFPLBF... CCF LBF BB 059/085 054/084 055 32- OGA BB 058/086 054/085 054 22- ONL EB 062/083 059/085 060 34- VTN BB 059/082 054/084 050 33- SHEETS
Nearby
Severe Thunderstorm Warnings in Nebraska, 1998Every severe thunderstorm warning in 1998
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.