Alert archive / Nebraska / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 340, NWS North Platte, NE
NWS North Platte, NE issued this severe thunderstorm warning at Aug 4, 2007, 6:56 PM CDT for Custer County, Nebraska. It was in force for 49 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Aug 4, 2007, 6:56 PM CDT (23:56 UTC)
- Expired
- Aug 4, 2007, 7:45 PM CDT
- In force
- 49 min
- Issued by
- NWS North Platte, NE
- Area
- Counties, with a storm outline in the text
County Custer County, NE
The radar
The North Platte radar (KLNX), 77 km from the middle of the area, began a volume at 23:59 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 4, 7:27 PM CDT | TSTM WND GST 60 | 5 Sw Anselmo, NE | PEA SIZED HAIL ACCOMPANIED THE 60 MPH WIND. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Aug 4, 5:46 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
The nearest sounding before it
N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 11.9 hours before the alert went out and 77 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
- 41 J/kg
- Mixed-layer CIN
- -331 J/kg
- Mixed-layer LCL
- 1432 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 130 m²/s²
- 0-3 km storm-relative helicity
- 104 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS53 KLBF 042356 SVRLBF NEC041-050045- /O.NEW.KLBF.SV.W.0340.070804T2356Z-070805T0045Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE NORTH PLATTE NE 656 PM CDT SAT AUG 4 2007 THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHERN CUSTER COUNTY IN CENTRAL NEBRASKA... * UNTIL 745 PM CDT * AT 655 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS STORM WAS LOCATED 9 MILES NORTHEAST OF MERNA...OR ABOUT 11 MILES NORTH OF BROKEN BOW. THIS STORM WAS NEARLY STATIONARY. * THE SEVERE THUNDERSTORM WILL BE NEAR... 8 MILES NORTHEAST OF MERNA BY 745 PM CDT... A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT SATURDAY EVENING FOR WESTERN NEBRASKA. LAT...LON 4158 10011 4140 10009 4147 9945 4163 9945 $$ JWS
3 follow-up statements
000 WWUS53 KLBF 050022 SVSLBF SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE NORTH PLATTE NE 722 PM CDT SAT AUG 4 2007 NEC041-050045- /O.CON.KLBF.SV.W.0340.000000T0000Z-070805T0045Z/ CUSTER NE- 722 PM CDT SAT AUG 4 2007 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM CDT FOR NORTHERN CUSTER COUNTY... AT 719 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM MERNA TO HIGHWAY 92 MILE MARKER 260...OR ALONG A LINE EXTENDING FROM 10 MILES NORTHWEST OF BROKEN BOW TO 10 MILES NORTHEAST OF ARNOLD...MOVING SOUTH AT 10 MPH. SEVERE THUNDERSTORMS WILL BE NEAR... HIGHWAY 92 MILE MARKER 260 AND MERNA THROUGH 740 PM CDT... A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT SATURDAY EVENING FOR WESTERN NEBRASKA. LAT...LON 4158 10011 4140 10009 4147 9945 4163 9945 $$ JWS
000 WWUS53 KLBF 050031 SVSLBF SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE NORTH PLATTE NE 730 PM CDT SAT AUG 4 2007 NEC041-050045- /O.CON.KLBF.SV.W.0340.000000T0000Z-070805T0045Z/ CUSTER NE- 730 PM CDT SAT AUG 4 2007 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM CDT FOR NORTHERN CUSTER COUNTY... AT 729 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM MERNA TO HIGHWAY 92 MILE MARKER 260...OR ALONG A LINE EXTENDING FROM 9 MILES NORTHWEST OF BROKEN BOW TO 11 MILES NORTHEAST OF ARNOLD...MOVING SOUTH AT 5 MPH. SEVERE THUNDERSTORMS WILL BE NEAR... HIGHWAY 92 MILE MARKER 260 BY 740 PM CDT... MERNA BY 745 PM CDT... DAMAGING WINDS UP TO 60 MPH WERE REPORTED 5 MILES SOUTHWEST OF ANSELMO WITH THIS STORM. THIS IS A DANGEROUS STORM...SEEK SAFE SHELTER AND STAY AWAY FROM WINDOWS A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT SATURDAY EVENING FOR WESTERN NEBRASKA. LAT...LON 4158 10011 4140 10009 4147 9945 4163 9945 $$ JWS
000 WWUS53 KLBF 050047 SVSLBF SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE NORTH PLATTE NE 745 PM CDT SAT AUG 4 2007 NEC041-050055- /O.EXP.KLBF.SV.W.0340.000000T0000Z-070805T0045Z/ CUSTER NE- 745 PM CDT SAT AUG 4 2007 ...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN CUSTER COUNTY EXPIRES AT 745 PM CDT... AT 745 PM CDT...NORTH PLATTE DOPPLER RADAR INDICATED THAT THE STORM THAT PROMPTED THE WARNING HAD WEAKENED BELOW SEVERE LIMITS. HOWEVER...VERY HEAVY RAIN...SMALL HAIL...AND GUSTY WINDS TO 50 MPH ARE POSSIBLE IN CENTRAL CUSTER COUNTY THROUGH 830 PM CDT. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT SATURDAY EVENING FOR WESTERN NEBRASKA. LAT...LON 4158 10011 4140 10009 4147 9945 4163 9945 $$ JWS
The office that day
Everything else NWS North Platte, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 3, 7:14 PM CDT | Severe Thunderstorm Warning | LBF | Cherry | 31 min |
| Aug 3, 7:22 PM CDT | Tornado Warning | LBF | Keya Paha | 23 min |
| Aug 3, 7:44 PM CDT | Tornado Warning | LBF | Keya Paha | 46 min |
| Aug 4, 5:33 PM CDT | Severe Thunderstorm Warning | LBF | Loup | 42 min |
| Aug 4, 6:06 PM CDT | Severe Thunderstorm Warning | LBF | Custer | 39 min |
Nearby
Severe Thunderstorm Warnings in Nebraska, 2007Every severe thunderstorm warning in 2007
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.