Alert archive / Nebraska / Flash Flood Warnings in 2019
Flash Flood Warning 39, NWS North Platte, NE
NWS North Platte, NE issued this flash flood warning at Sep 11, 2019, 10:31 PM CDT for Brown County, Keya Paha County, Rock County, Nebraska. It was in force for 14 hr. 2 reports 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
- Sep 11, 2019, 10:31 PM CDT (03:31 UTC)
- Expired
- Sep 12, 2019, 12:40 PM CDT
- In force
- 14 hr
- Issued by
- NWS North Platte, NE
- Area
- Storm-based polygon
- Flood severity
- None
Counties Brown County, NE, Keya Paha County, NE, Rock County, NE
The radar
The North Platte radar (KLNX), 115 km from the middle of the area, began a volume at 03:30 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 |
|---|---|---|---|
| Sep 11, 11:00 PM CDT | FLASH FLOOD | 10 Nw Bassett, NE | BRIDGE OVER LONG PINE CREEK HAS BEEN WASHED OUT. TIME OF EVENT IS ESTIMATED. |
| Sep 12, 8:47 AM CDT | HEAVY RAIN 3 | 5 Ssw Bobcat State Wild, NE | 24 HOUR STORM TOTAL, REPORT VIA FACEBOOK. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 3.5 hours before the alert went out and 198 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
- 1882 J/kg
- Mixed-layer CIN
- -15 J/kg
- Mixed-layer LCL
- 2021 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 104 m²/s²
- 0-3 km storm-relative helicity
- 136 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 4.1
The text
As transmitted.
761 WGUS53 KLBF 120331 FFWLBF NEC017-103-149-120730- /O.NEW.KLBF.FF.W.0039.190912T0331Z-190912T0730Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED Flash Flood Warning National Weather Service North Platte NE 1031 PM CDT Wed Sep 11 2019 The National Weather Service in North Platte has issued a * Flash Flood Warning for... Northwestern Rock County in north central Nebraska... Northeastern Brown County in north central Nebraska... Southwestern Keya Paha County in north central Nebraska... * Until 230 AM CDT. * At 1031 PM CDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. One to one and a half inches of rain have fallen. Flash flooding is expected to begin shortly. * Some locations that will experience flooding include... Springview, Thomas Creek State Wildlife Management Area, Meadville, Bobcat State Wildlife Management Area and Keller Park State Recreation Area. Additional rainfall amounts of one to two inches are possible in the warned area. This includes the following highways... Highway 183 between mile markers 203 and 127. Highway 12 between mile markers 33 and 51. PRECAUTIONARY/PREPAREDNESS ACTIONS... Excessive runoff from heavy rainfall will cause flooding of small creeks and streams, country roads, farmland, and other low lying spots. In hilly terrain there are hundreds of low water crossings which are potentially dangerous in heavy rain. Do not attempt to cross flooded roads. Find an alternate route. && LAT...LON 4289 9961 4267 9959 4267 10003 4289 10000 $$ ET
3 follow-up statements
016 WGUS53 KLBF 120558 FFWLBF NEC017-103-149-121330- /O.EXT.KLBF.FF.W.0039.000000T0000Z-190912T1330Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED Flash Flood Warning National Weather Service North Platte NE 1258 AM CDT Thu Sep 12 2019 The National Weather Service in North Platte has extended the * Flash Flood Warning for... Northwestern Rock County in north central Nebraska... Northeastern Brown County in north central Nebraska... Southwestern Keya Paha County in north central Nebraska... * Until 830 AM CDT Thursday. * At 1257 AM CDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Over two inches of rain have fallen tonight alone. Flash flooding is already occurring. * Some locations that will experience flooding include... Springview, Thomas Creek State Wildlife Management Area, Meadville, Bobcat State Wildlife Management Area and Keller Park State Recreation Area. Additional rainfall amounts of up to one-half inch are possible in the warned area overnight. This includes the following highways... Highway 183 between mile markers 203 and 127. Highway 12 between mile markers 33 and 51. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding. Excessive runoff from heavy rainfall will cause flooding of small creeks and streams, country roads, farmland, and other low lying spots. && LAT...LON 4289 9961 4267 9959 4267 10003 4289 10000 $$ Snively
722 WGUS53 KLBF 121302 FFWLBF NEC017-103-149-122130- /O.EXT.KLBF.FF.W.0039.000000T0000Z-190912T2130Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED Flash Flood Warning National Weather Service North Platte NE 802 AM CDT Thu Sep 12 2019 The National Weather Service in North Platte has extended the * Flash Flood Warning for... Northwestern Rock County in north central Nebraska... Northeastern Brown County in north central Nebraska... Southwestern Keya Paha County in north central Nebraska... * Until 430 PM CDT Thursday. * At 759 AM CDT, local law enforcement reported that flash flooding continued across portions of the warned area. Many county roads are washed out with water over the roads in some locations. Some rivers and creek may also be out of their banks. This is all a result of 3 to 7 inches of rainfall which has fallen over the area the past two days. * Some locations that will experience flooding include... Springview, Thomas Creek State Wildlife Management Area, Meadville, Bobcat State Wildlife Management Area and Keller Park State Recreation Area. This includes the following highways... Highway 183 between mile markers 203 and 127. Highway 12 between mile markers 33 and 51. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding. Excessive runoff from heavy rainfall will cause flooding of small creeks and streams, country roads, farmland, and other low lying spots. && LAT...LON 4289 9961 4267 9959 4267 10003 4289 10000 $$ Roberg
383 WGUS73 KLBF 121740 FFSLBF Flash Flood Statement National Weather Service North Platte NE 1240 PM CDT Thu Sep 12 2019 NEC017-103-149-121747- /O.CAN.KLBF.FF.W.0039.000000T0000Z-190912T2130Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Rock NE-Brown NE-Keya Paha NE- 1240 PM CDT Thu Sep 12 2019 ...THE FLASH FLOOD WARNING FOR NORTHWESTERN ROCK...NORTHEASTERN BROWN AND SOUTHWESTERN KEYA PAHA COUNTIES IS CANCELLED... The Flash Flood Warning for northwestern Rock, northeastern Brown and southwestern Keya Paha Counties has been replaced with a Flood Warning for the entire area. This Flood Warning is now in effect until Sunday afternoon. Repeat, a Flood Warning for all of northwestern Rock, northeastern Brown and southwestern Keya Paha Counties is now in effect for the entire area until Sunday afternoon. LAT...LON 4289 9961 4267 9959 4267 10003 4289 10000 $$ Jacobs
The office that day
Everything else NWS North Platte, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 11, 7:12 PM CDT | Special Weather Statement | LBF | Rock | 48 min |
| Sep 11, 7:17 PM CDT | Special Weather Statement | LBF | Holt | 43 min |
| Sep 11, 7:17 PM CDT | Severe Thunderstorm Warning | LBF | Cherry | 43 min |
| Sep 11, 7:23 PM CDT | Special Weather Statement | LBF | Cherry | 52 min |
| Sep 11, 7:27 PM CDT | Severe Thunderstorm Warning | LBF | Cherry, Grant, Hooker | 48 min |
| Sep 11, 7:29 PM CDT | Severe Thunderstorm Warning | LBF | Keith | 46 min |
| Sep 11, 7:32 PM CDT | Severe Thunderstorm Warning | LBF | Chase, Hayes, Lincoln, Perkins | 43 min |
| Sep 11, 7:40 PM CDT | Areal Flood Advisory | LBF | Holt | 3 hr |
| Sep 11, 7:51 PM CDT | Flash Flood Warning | LBF | Holt | 13 hr |
| Sep 11, 8:00 PM CDT | Special Weather Statement | LBF | Cherry | 45 min |
| Sep 11, 8:08 PM CDT | Special Weather Statement | LBF | Keya Paha | 37 min |
| Sep 11, 8:11 PM CDT | Special Weather Statement | LBF | Holt | 49 min |
| Sep 11, 8:13 PM CDT | Severe Thunderstorm Warning | LBF | Chase, Hayes, Lincoln, Perkins | 47 min |
| Sep 11, 8:16 PM CDT | Special Weather Statement | LBF | Keith | 44 min |
| Sep 11, 8:24 PM CDT | Flash Flood Warning | LBF | Holt | 12 hr |
| Sep 11, 8:33 PM CDT | Severe Thunderstorm Warning | LBF | Holt | 27 min |
| Sep 11, 8:34 PM CDT | Special Weather Statement | LBF | Grant | 41 min |
| Sep 11, 8:43 PM CDT | Special Weather Statement | LBF | Cherry | 47 min |
| Sep 11, 8:53 PM CDT | Severe Thunderstorm Warning | LBF | Chase, Deuel, Garden, Hayes, Keith, Perkins | 67 min |
| Sep 11, 8:55 PM CDT | Severe Thunderstorm Warning | LBF | Lincoln | 28 min |
| Sep 11, 8:58 PM CDT | Special Weather Statement | LBF | McPherson | 47 min |
| Sep 11, 9:12 PM CDT | Flash Flood Warning | LBF | Brown, Rock | 15 hr |
| Sep 11, 9:27 PM CDT | Special Weather Statement | LBF | Boyd | 48 min |
| Sep 11, 9:31 PM CDT | Special Weather Statement | LBF | Cherry | 44 min |
| Sep 11, 9:32 PM CDT | Areal Flood Advisory | LBF | Boyd, Holt | 4 hr |
| Sep 11, 9:40 PM CDT | Special Weather Statement | LBF | Brown | 50 min |
| Sep 11, 9:41 PM CDT | Severe Thunderstorm Warning | LBF | Chase, Frontier, Hayes, Keith, Lincoln, Perkins | 64 min |
| Sep 11, 9:44 PM CDT | Special Weather Statement | LBF | McPherson | 46 min |
| Sep 11, 9:47 PM CDT | Special Weather Statement | LBF | Thomas | 43 min |
| Sep 11, 10:01 PM CDT | Flash Flood Warning | LBF | Boyd, Holt | 11 hr |
| Sep 11, 10:36 PM CDT | Severe Thunderstorm Warning | LBF | Custer, Frontier, Hayes, Lincoln | 54 min |
| Sep 11, 11:05 PM CDT | Severe Thunderstorm Warning | LBF | Blaine, Custer, Loup | 55 min |
| Sep 11, 11:32 PM CDT | Severe Thunderstorm Warning | LBF | Custer, Frontier | 43 min |
| Sep 12, 12:01 AM CDT | Special Weather Statement | LBF | Garfield, Wheeler | 44 min |
| Sep 12, 1:29 AM CDT | Areal Flood Advisory | LBF | Boyd, Holt, Keya Paha, Rock | 7 hr |
| Sep 12, 4:05 AM CDT | River Flood Warning | LBF | Holt | 4 days |
| Sep 12, 8:19 AM CDT | Areal Flood Warning | LBF | Holt | 4 hr |
| Sep 12, 8:46 AM CDT | Areal Flood Warning | LBF | Boyd, Holt | 4 hr |
| Sep 12, 9:00 AM CDT | Areal Flood Advisory | LBF | Boyd, Holt, Keya Paha, Rock | 4 hr |
| Sep 12, 12:19 PM CDT | Areal Flood Warning | LBF | Boyd, Brown, Holt, Keya Paha, Rock | 4 days |
| Sep 12, 12:55 PM CDT | Areal Flood Advisory | LBF | Cherry | 48 hr |
Nearby
Flash Flood Warnings in Nebraska, 2019Every flash flood warning in 2019
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.