Alert archive / Nebraska / Tornado Warnings in 2010
Tornado Warning 69, NWS North Platte, NE
NWS North Platte, NE issued this tornado warning at Jul 21, 2010, 7:22 PM MDT for Chase County, Nebraska. It was in force for 23 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
- Jul 21, 2010, 7:22 PM MDT (01:22 UTC)
- Expired
- Jul 21, 2010, 7:45 PM MDT
- In force
- 23 min
- Issued by
- NWS North Platte, NE
- Area
- Storm-based polygon
County Chase County, NE
The radar
The Goodland radar (KGLD), 127 km from the middle of the area, began a volume at 01:23 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 |
|---|---|---|---|
| Jul 21, 7:25 PM MDT | TSTM WND GST 60 | 5 Ssw Lamar, NE | ESTIMATED WIND GUSTS OF 60 MPH OR GREATER. WINDS FLIPPED OVER SWING. |
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 |
|---|---|---|---|
| Jul 21, 4:04 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Denver, CO (KDNR), launched 00:00Z, 1.4 hours before the alert went out and 126 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
- 84 J/kg
- Mixed-layer CIN
- -95 J/kg
- Mixed-layer LCL
- 1758 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 27 m²/s²
- 0-3 km storm-relative helicity
- 109 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
074
WFUS53 KLBF 220122
TORLBF
NEC029-220145-
/O.NEW.KLBF.TO.W.0069.100722T0122Z-100722T0145Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
722 PM MDT WED JUL 21 2010
THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A
* TORNADO WARNING FOR...
WEST CENTRAL CHASE COUNTY IN SOUTHWEST NEBRASKA...
* UNTIL 745 PM MDT
* AT 716 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
STORM WAS LOCATED 8 MILES NORTH OF ALVIN...OR 17 MILES SOUTHEAST OF
HOLYOKE...AND MOVING NORTHEAST AT 25 MPH.
* THIS DANGEROUS STORM WILL BE NEAR...
LAMAR AROUND 740 PM MDT.
OTHER LOCATIONS IMPACTED BY THIS DANGEROUS STORM INCLUDE HIGHWAY 6
MILE MARKER 10.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.
TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN NORTH PLATTE.
&&
LAT...LON 4047 10206 4050 10205 4064 10195 4048 10176
4038 10205
TIME...MOT...LOC 0122Z 227DEG 21KT 4044 10203
$$
CDC2 follow-up statements
744 WWUS53 KLBF 220138 SVSLBF SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE NORTH PLATTE NE 838 PM CDT WED JUL 21 2010 NEC029-220145- /O.CON.KLBF.TO.W.0069.000000T0000Z-100722T0145Z/ CHASE NE- 738 PM MDT WED JUL 21 2010 ...A TORNADO WARNING REMAINS IN EFFECT FOR WEST CENTRAL CHASE COUNTY UNTIL 745 PM MDT... AT 732 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED NEAR LAMAR...OR 17 MILES WEST OF IMPERIAL...MOVING NORTHEAST AT 30 MPH. THIS DANGEROUS STORM WILL AFFECT MAINLY RURAL AREAS OF WEST CENTRAL CHASE COUNTY. PRECAUTIONARY/PREPAREDNESS ACTIONS... TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS. TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN NORTH PLATTE. && LAT...LON 4043 10193 4053 10202 4064 10195 4048 10176 TIME...MOT...LOC 0139Z 224DEG 27KT 4055 10192 $$ CDC
539 WWUS53 KLBF 220144 SVSLBF SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE NORTH PLATTE NE 844 PM CDT WED JUL 21 2010 NEC029-220154- /O.EXP.KLBF.TO.W.0069.000000T0000Z-100722T0145Z/ CHASE NE- 744 PM MDT WED JUL 21 2010 ...THE TORNADO WARNING FOR WEST CENTRAL CHASE COUNTY WILL EXPIRE AT 845 PM CDT/745 PM MDT/... THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY. TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN NORTH PLATTE. LAT...LON 4043 10193 4053 10202 4064 10195 4048 10176 TIME...MOT...LOC 0144Z 224DEG 27KT 4058 10188 $$ CDC
The office that day
Everything else NWS North Platte, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 21, 7:03 PM MDT | Severe Thunderstorm Warning | LBF | Chase, Perkins | 42 min |
| Jul 21, 8:51 PM MDT | Areal Flood Advisory | LBF | Boyd, Holt, Keya Paha, Rock | 3 hr |
| Jul 21, 9:15 PM MDT | Flash Flood Warning | LBF | Holt | 4 hr |
| Jul 21, 11:24 PM MDT | Flash Flood Warning | LBF | Boyd, Holt | 12 hr |
| Jul 22, 11:45 AM MDT | Areal Flood Warning | LBF | Holt | 6 hr |
| Jul 22, 2:39 PM MDT | Flood Watch | LBF | Boyd, Holt, Keya Paha, Rock | 31 hr |
Nearby
Tornado Warnings in Nebraska, 2010Every tornado warning in 2010Tornadoes in 2010
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.