Alert archive / Texas / Winter Storm Watches in 2015
Winter Storm Watch 2, NWS Amarillo, TX
NWS Amarillo, TX issued this winter storm watch at Feb 20, 2015, 3:34 AM CST for 4 counties in Texas; Cimarron County, Texas County, Oklahoma. It took effect at Feb 21, 2015, 6:00 PM CST. It was in force for .
The area
The counties it named.
The facts
- Issued
- Feb 20, 2015, 3:34 AM CST (09:34 UTC)
- In effect from
- Feb 21, 2015, 6:00 PM CST
- Expired
- Feb 21, 2015, 4:55 AM CST
- In force
- Issued by
- NWS Amarillo, TX
Counties Cimarron County, OK, Texas County, OK, Dallam County, TX, Hartley County, TX, Moore County, TX, Sherman County, TX
The radar
The Amarillo radar (KAMA), 124 km from the middle of the area, began a volume at 09:34 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
Denver, CO (KDEN), launched 00:00Z, 9.6 hours before the alert went out and 409 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 3403 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 11 m²/s²
- 0-3 km storm-relative helicity
- 94 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this winter storm watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Amarillo, TX wrote its last area forecast discussion before this winter storm watch went out at Feb 20, 3:22 AM CST, 12 minutes earlier.
Area forecast discussion, Feb 20, 3:22 AM CST, 12 minutes before
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</html>Hazardous weather outlook, Feb 20, 3:30 AM CST, 4 minutes before
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</html>Nearby
Winter Storm Watches in Texas, 2015Winter Storm Watches in Oklahoma, 2015Every winter storm watch in 2015
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.