Alert archive / Nebraska / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 173, NWS North Platte, NE
NWS North Platte, NE issued this severe thunderstorm warning at Aug 13, 1997, 1:37 PM CDT for Blaine County, Nebraska. It was in force for 33 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
- Aug 13, 1997, 1:37 PM CDT (18:37 UTC)
- Expired
- Aug 13, 1997, 2:10 PM CDT
- In force
- 33 min
- Issued by
- NWS North Platte, NE
- Area
- Whole counties
County Blaine County, NE
The radar
The North Platte radar (KLNX), 50 km from the middle of the area, began a volume at 18:35 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 |
|---|---|---|---|
| Aug 13, 1:40 PM CDT | Hail 0.75 | Brewster, 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, 6.6 hours before the alert went out and 101 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
- 95 J/kg
- Mixed-layer CIN
- -89 J/kg
- Mixed-layer LCL
- 834 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 177 m²/s²
- 0-3 km storm-relative helicity
- 206 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KLBF 131838 RRA SVRLBF NEC009-131910- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE NORTH PLATTE NE 137 PM CDT WED AUG 13 1997 THE NATIONAL WEATHER SERVICE IN NORTH PLATTE NE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 210 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN NORTH CENTRAL NEBRASKA ...NORTHEASTERN BLAINE COUNTY AT 135 PM CDT...A SEVERE THUNDERSTORM WAS INDICATED BY NORTH PLATTE DOPPLER RADAR 37 MILES SOUTH OF AINSWORTH OR 9 MILES NORTHEAST OF BREWSTER MOVING EAST NORTHEAST AT 15 MPH. THIS STORM IS EXPECTED TO REMAIN IN RURAL AREAS NORTH AND NORTHEAST OF BREWSTER. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOxES WITH LITTLE OR NO ADVANCE WARNING. IF YOU ARE IN THE PATH OF THIS STORM YOU SHOULD MOVE INSIDE A STRONG BUILDING AND GO TO THE LOWEST FLOOR POSSIBLE. BOWMAN
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 13, 12:01 PM CDT, 1 hour 36 minutes earlier.
Area forecast discussion, Aug 13, 12:01 PM CDT, 1 hour 36 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE NORTH PLATTE NE 1159 AM CDT (1059 AM MDT) WED AUG 13 1997 UPDATED CURRENT SET OF ZONES FOR AFTERNOON WEATHER. MAY NEED TO UPDATE AGAIN SHORTLY WITH NEW STORMS DEVELOPING QUICKLY ON BACK SIDE OF SHOWERS AND ALSO ALONG A LINE FROM THEDFORD TO EAST OF STAPLETON. THIS LATTER MENTIONED LINE APPEARS TO BE THE RESULT OF A DIFFERNTIAL HEATING BOUNDARY SET UP BY PATCH OF STRATUS THAT DISSIPATED N OF OGA EARLIER...IN FACT A NICE BOUNDARY SHOWS UP ON 1KM VIS PICS. WILL ALSO NEED TO WATCH INTERACTION OF WAVE CLOUDS COMING ACROSS NORTHERN CO WHEN THEY MEET UP WITH TROF AXIS BY MID AFTERNOON OR SO. STOPPKOTTE
In the hours before
Special weather statement, Aug 13, 11:04 AM CDT, 2 hours 33 minutes before
NEZ004>010-022>029-035>038-056>059-069>071-141200- SEVERE WEATHER OUTLOOK FOR WESTERN AND NORTH CENTRAL NEBRASKA NATIONAL WEATHER SERVICE NORTH PLATTE NE 1104 AM CDT (1004 AM MDT) WED AUG 13 1997 THIS OUTLOOK PERTAINS TO THE FOLLOWING NEBRASKA COUNTIES... ARTHUR BLAINE BOYD BROWN CHASE CHERRY CUSTER DEUEL FRONTIER GARDEN GARFIELD GRANT HAYES HOLT HOOKER KEITH KEYA PAHA LINCOLN LOGAN LOUP MCPHERSON PERKINS ROCK SHERIDAN THOMAS WHEELER ...STORM SPOTTER ACTIVATION MAY BE NEEDED IN PARTS OF WESTERN AND SOUTHWEST NEBRASKA LATE THIS AFTERNOON INTO TONIGHT... THERE IS A SLIGHT CHANCE OF SEVERE THUNDERSTORMS WEST OF A LINE FROM VALENTINE TO BROKEN BOW. SCATTERED THUNDERSTORMS WILL BE POSSIBLE ACROSS THE REMAINDER OF THE AREA AS WELL...BUT ARE NOT EXPECTED TO REACH SEVERE LIMITS. SCATTERED SHOWERS AND A FEW THUNDERSTORMS WILL CONTINUE TO MOVE EAST ACROSS PARTS OF NORTH CENTRAL NEBRASKA INTO THE THE AFTERNOON...MAINLY EAST OF A LINE FROM AINSWORTH TO BURWELL. THESE SHOWERS AND THUNDERSTORMS ARE NOT EXPECTED TO PRODUCE SEVERE WEATHER. FURTHER WEST...AN AREA OF LOW PRESSURE IS EXPECTED TO DEVELOP IN THE EASTERN PANHANDLE BY LATE AFTERNOON. AHEAD OF THIS AREA OF LOW PRESSURE...SOUTHERLY WINDS WILL TRANSPORT ABUNDANT MOISTURE INTO THE AREA. WITH AN UPPER LEVEL DISTURBANCE PASSING THROUGH THE AREA AS WELL...THUNDERSTORMS ARE EXPECTED TO DEVELOP BY LATE AFTERNOON. THE BEST INSTABILITY WILL RESIDE WEST OF A LINE FROM VALENTINE TO BROKEN BOW BY AFTERNOON AS WELL...RESULTING IN A POSSIBILITY FOR LARGE HAIL AND DAMAGING WINDS. STOPPKOTTE
Special weather statement, Aug 13, 1:17 PM CDT, 20 minutes before
NEZ004>010-022>029-035>038-056>059-069>071-141200- SEVERE WEATHER OUTLOOK FOR WESTERN AND NORTH CENTRAL NEBRASKA NATIONAL WEATHER SERVICE NORTH PLATTE NE...UPDATED... 118 PM CDT (1218 PM MDT) WED AUG 13 1997 THIS OUTLOOK PERTAINS TO THE FOLLOWING NEBRASKA COUNTIES... ARTHUR BLAINE BOYD BROWN CHASE CHERRY CUSTER DEUEL FRONTIER GARDEN GARFIELD GRANT HAYES HOLT HOOKER KEITH KEYA PAHA LINCOLN LOGAN LOUP MCPHERSON PERKINS ROCK SHERIDAN THOMAS WHEELER ...STORM SPOTTER ACTIVATION MAY BE NEEDED IN PARTS OF NORTH CENTRAL NEBRASKA THIS AFTERNOON...AND IN WESTERN NEBRASKA LATER THIS AFTERNOON INTO TONIGHT... THERE IS A SLIGHT CHANCE OF SEVERE THUNDERSTORMS THIS AFTERNOON EAST OF A LINE FROM AINSWORTH TO BREWSTER. THERE IS ALSO A CHANCE FOR SEVERE THUNDERSTORMS THIS AFTERNOON AND TONIGHT WEST OF A LINE FROM VALENTINE TO BROKEN BOW. SCATTERED THUNDERSTORMS WILL CONTINUE TO DEVELOP IN PARTS OF NORTH CENTRAL NEBRASKA THROUGH THE AFTERNOON AS SHOWERS FURTHER EAST CONTINUE TO PUSH EASTWARD. INSTABILITY WILL CONTINUE TO INCREASE BEHIND THE SHOWERS IN THIS AREA ALLOWING THESE STORMS...MAINLY EAST OF A LINE FROM AINSWORTH TO BREWSTER...TO HAVE THE POTENTIAL TO PRODUCE SEVERE WEATHER MAINLY IN THE FORM OF LARGE HAIL THROUGH THE AFTERNOON HOURS. FURTHER WEST...ABUNDANT SUNSHINE WILL CONTINUE TO DESTABILIZE THE ATMOSPHERE WEST OF A LINE FROM MERRIMAN TO OGALLALA THROUGH THE AFTERNOON. AN UPPER LEVEL DISTURBANCE WILL INTERACT WITH A DEVELOPING AREA OF LOW PRESSURE IN THIS AREA AS WELL BY LATE AFTERNOON. SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP IN AN AREA FROM NEAR RUSHVILLE TO OGALLALA AFTER 200 PM MDT. WITH THE INCREASING INSTABILITY AND FAVORABLE WINDS THROUGHOUT THE ATMOSPHERE...SOME STORMS WILL HAVE THE POTENTIAL TO BECOME SEVERE QUICKLY AFTER DEVELOPMENT. THE MAIN THREAT OF SEVERE WEATHER WILL BE IN THE FORM OF LARGE AHIL AND DAMAGING WINDS. THUNDERSTORMS ARE THEN EXPECTED TO SPREAD EASTWARD THROUGH THE EVENING WITH THE POTENTIAL FOR SEVERE WEATHER CONTINUING INTO SOUTHWEST AND PARTS OF CENTRAL NEBRASKA. STAY TUNED TO NOAA WEATHER RADIO FOR UPDATES ON THIS POTENTIAL SEVERE WEATHER SITUATION. STOPPKOTTE
Local storm report, Aug 13, 1:22 PM CDT, 15 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
122 PM CDT WED AUG 13 1997
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
1255 PM 28 S LONG PINE NE 0.75 INCH HAIL
08/13/97 BROWN
0108 PM 32 SSW AINSWORTH NE 1.75 INCH HAIL
08/13/97 BROWN
0110 PM 3 N BREWSTER NE 0.75 INCH HAIL
08/13/97 BLAINE
0102 PM 6 N BREWSTER NE 0.75 INCH HAIL
08/13/97 BLAINE
SLMLocal storm report, Aug 13, 1:24 PM CDT, 13 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
122 PM CDT WED AUG 13 1997
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
1255 PM 28 S LONG PINE NE 0.75 INCH HAIL
08/13/97 BROWN
0108 PM 32 SSW AINSWORTH NE 1.75 INCH HAIL
08/13/97 BROWN
0110 PM 3 N BREWSTER NE 0.75 INCH HAIL
08/13/97 BLAINE
0102 PM 6 N BREWSTER NE 0.75 INCH HAIL
08/13/97 BLAINE
SLMThe office that day
Everything else NWS North Platte, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 13, 12:53 PM CDT | Severe Thunderstorm Warning | LBF | Blaine, Brown | 47 min |
| Aug 13, 2:10 PM CDT | Tornado Warning | LBF | Loup | 30 min |
| Aug 13, 2:41 PM CDT | Severe Thunderstorm Warning | LBF | Loup | 34 min |
| Aug 13, 2:55 PM CDT | Severe Thunderstorm Warning | LBF | Blaine, Brown | 50 min |
| Aug 13, 2:59 PM CDT | Severe Thunderstorm Warning | LBF | Custer, Logan | 51 min |
| Aug 13, 3:49 PM CDT | Severe Thunderstorm Warning | LBF | Custer | 61 min |
| Aug 13, 4:32 PM CDT | Severe Thunderstorm Warning | LBF | Loup | 48 min |
| Aug 13, 4:50 PM CDT | Severe Thunderstorm Warning | LBF | Custer | 60 min |
| Aug 13, 5:26 PM CDT | Severe Thunderstorm Warning | LBF | Garfield, Loup | 64 min |
| Aug 13, 5:53 PM CDT | Tornado Warning | LBF | Custer | 32 min |
Nearby
Severe Thunderstorm Warnings in Nebraska, 1997Every severe thunderstorm warning in 1997
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.