Alert archive / Nebraska / Flash Flood Watches in 2019
Flash Flood Watch 1, NWS North Platte, NE
NWS North Platte, NE issued this flash flood watch at Aug 10, 2019, 3:00 PM CDT for Frontier County, Hayes County, Lincoln County, Nebraska. It took effect at Aug 10, 2019, 7:00 PM CDT. It was in force for 8 hr.
The area
The counties it named.
The facts
- Issued
- Aug 10, 2019, 3:00 PM CDT (20:00 UTC)
- In effect from
- Aug 10, 2019, 7:00 PM CDT
- Expired
- Aug 11, 2019, 3:09 AM CDT
- In force
- 8 hr
- Issued by
- NWS North Platte, NE
- Flood severity
- None
Counties Frontier County, NE, Hayes County, NE, Lincoln County, NE
The radar
The North Platte radar (KLNX), 140 km from the middle of the area, began a volume at 20:03 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, 8.0 hours before the alert went out and 49 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
- 1602 J/kg
- Mixed-layer CIN
- -207 J/kg
- Mixed-layer LCL
- 1098 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 142 m²/s²
- 0-3 km storm-relative helicity
- 129 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
What forecasters said that day
The local office's own words before this flash flood watch 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 flash flood watch went out at Aug 10, 12:40 PM CDT, 2 hours 20 minutes earlier.
Area forecast discussion, Aug 10, 12:40 PM CDT, 2 hours 20 minutes before
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</html>Hazardous weather outlook, Aug 10, 11:00 AM CDT, 4 hours before
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Local storm report, Aug 10, 9:36 AM CDT, 5 hours 24 minutes before
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</html>Local storm report, Aug 10, 9:48 AM CDT, 5 hours 12 minutes before
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</html>The office that day
Everything else NWS North Platte, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 9, 7:23 PM CDT | Tornado Warning | LBF | Boyd, Holt, Keya Paha | 67 min |
| Aug 9, 7:52 PM CDT | Tornado Warning | LBF | Boyd, Keya Paha, Rock | 38 min |
| Aug 9, 8:21 PM CDT | Severe Thunderstorm Warning | LBF | Boyd, Holt, Keya Paha, Rock | 39 min |
| Aug 9, 8:44 PM CDT | Severe Thunderstorm Warning | LBF | Holt | 61 min |
| Aug 9, 8:50 PM CDT | Special Weather Statement | LBF | Keya Paha | 40 min |
| Aug 9, 8:59 PM CDT | Special Weather Statement | LBF | Rock | 46 min |
| Aug 9, 9:38 PM CDT | Special Weather Statement | LBF | Holt | 52 min |
| Aug 9, 9:48 PM CDT | Special Weather Statement | LBF | Holt | 42 min |
| Aug 9, 9:51 PM CDT | Special Weather Statement | LBF | Brown | 39 min |
| Aug 9, 9:59 PM CDT | Areal Flood Advisory | LBF | Boyd, Holt, Keya Paha | 3 hr |
| Aug 9, 10:22 PM CDT | Severe Thunderstorm Warning | LBF | Brown, Rock | 68 min |
| Aug 9, 10:42 PM CDT | Special Weather Statement | LBF | Wheeler | 48 min |
| Aug 9, 11:05 PM CDT | Severe Thunderstorm Warning | LBF | Blaine, Brown, Loup, Rock | 55 min |
| Aug 9, 11:39 PM CDT | Special Weather Statement | LBF | Wheeler | 36 min |
| Aug 9, 11:47 PM CDT | Severe Thunderstorm Warning | LBF | Custer, Garfield, Loup, Rock | 58 min |
| Aug 10, 1:07 AM CDT | Special Weather Statement | LBF | Custer | 53 min |
| Aug 10, 3:54 PM CDT | Special Weather Statement | LBF | Perkins | 51 min |
| Aug 10, 4:30 PM CDT | Severe Thunderstorm Warning | LBF | Chase, Perkins | 45 min |
| Aug 10, 5:12 PM CDT | Special Weather Statement | LBF | Perkins | 48 min |
| Aug 10, 5:41 PM CDT | Severe Thunderstorm Warning | LBF | Chase, Hayes, Lincoln, Perkins | 49 min |
| Aug 10, 5:42 PM CDT | Special Weather Statement | LBF | Arthur | 48 min |
| Aug 10, 5:43 PM CDT | Special Weather Statement | LBF | Hayes | 47 min |
| Aug 10, 6:01 PM CDT | Severe Thunderstorm Warning | LBF | Chase, Hayes | 44 min |
| Aug 10, 6:11 PM CDT | Tornado Warning | LBF | Chase, Hayes | 33 min |
| Aug 10, 6:24 PM CDT | Flash Flood Warning | LBF | Chase, Hayes | 9 hr |
| Aug 10, 6:43 PM CDT | Severe Thunderstorm Warning | LBF | Hayes | 47 min |
Nearby
Flash Flood Watches in Nebraska, 2019Every flash flood watch 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.