Alert archive / Tennessee / Wind Advisories in 2011
Wind Advisory 18, NWS Morristown, TN
NWS Morristown, TN issued this wind advisory at Oct 20, 2011, 2:23 AM EDT for 7 counties in Tennessee. It took effect at Oct 20, 2011, 3:00 AM EDT. It was in force for 11 hr.
The area
The counties it named.
The facts
- Issued
- Oct 20, 2011, 2:23 AM EDT (06:23 UTC)
- In effect from
- Oct 20, 2011, 3:00 AM EDT
- Expired
- Oct 20, 2011, 2:00 PM EDT
- In force
- 11 hr
- Issued by
- NWS Morristown, TN
Counties Blount County, TN, Carter County, TN, Cocke County, TN, Greene County, TN, Johnson County, TN, Sevier County, TN, Unicoi County, TN
The radar
The Knoxville radar (KMRX), 53 km from the middle of the area, began a volume at 06:22 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
Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 6.4 hours before the alert went out and 264 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
- 571 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 472 m above ground
- 0-6 km bulk shear
- 103 kt
- 0-1 km storm-relative helicity
- 11 m²/s²
- 0-3 km storm-relative helicity
- 83 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.3
The text
As transmitted, in the capitals the NWS used until 2016.
854 WWUS74 KMRX 200623 NPWMRX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MORRISTOWN TN 223 AM EDT THU OCT 20 2011 ...WINDY CONDITIONS EXPECTED IN THE MOUNTAINS TODAY... .A DEEP AREA OF LOW PRESSURE BRINGING WINDY CONDITIONS IN THE HIGHER ELEVATIONS. SOUTHWEST WINDS WILL INCREASE TO 20 TO 30 MPH WITH GUSTS UP TO 45 MPH. TNZ018-041-043-045-047-072-074-201430- /O.NEW.KMRX.WI.Y.0018.111020T0700Z-111020T1800Z/ JOHNSON-COCKE SMOKY MOUNTAINS-SOUTHEAST GREENE-UNICOI- SOUTHEAST CARTER-BLOUNT SMOKY MOUNTAINS-SEVIER SMOKY MOUNTAINS- INCLUDING THE CITIES OF...MOUNTAIN CITY...COSBY...CEDAR CREEK... ERWIN...ROAN MOUNTAIN...CADES COVE...GATLINBURG 223 AM EDT THU OCT 20 2011 ...WIND ADVISORY IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... THE NATIONAL WEATHER SERVICE IN MORRISTOWN HAS ISSUED A WIND ADVISORY...WHICH IS IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON. * EVENT...SOUTHWEST WINDS OF 20 TO 30 MPH...WITH HIGHER GUSTS UP TO 45 MPH. * TIMING...BEGINNING NOW AND CONTINUING INTO THE AFTERNOON HOURS. * IMPACTS...WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT... ESPECIALLY FOR HIGH PROFILE VEHICLES PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WINDS OF 26 TO 39 MPH AND/OR GUSTS OF 40 TO 57 MPH ARE EXPECTED OR OCCURRING. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES... SO USE CAUTION WHEN DRIVING. && $$
1 follow-up statement
063 WWUS74 KMRX 201624 NPWMRX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MORRISTOWN TN 1224 PM EDT THU OCT 20 2011 ...WINDY CONDITIONS EXPECTED IN THE MOUNTAINS TODAY... .A DEEP AREA OF LOW PRESSURE BRINGING WINDY CONDITIONS IN THE HIGHER ELEVATIONS. SOUTHWEST WINDS WILL INCREASE TO 20 TO 30 MPH WITH GUSTS UP TO 45 MPH. TNZ018-041-043-045-047-072-074-201800- /O.CON.KMRX.WI.Y.0018.000000T0000Z-111020T1800Z/ JOHNSON-COCKE SMOKY MOUNTAINS-SOUTHEAST GREENE-UNICOI- SOUTHEAST CARTER-BLOUNT SMOKY MOUNTAINS-SEVIER SMOKY MOUNTAINS- INCLUDING THE CITIES OF...MOUNTAIN CITY...COSBY...CEDAR CREEK... ERWIN...ROAN MOUNTAIN...CADES COVE...GATLINBURG 1224 PM EDT THU OCT 20 2011 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... * EVENT...SOUTHWEST WINDS OF 20 TO 30 MPH...WITH HIGHER GUSTS UP TO 45 MPH. * TIMING...BEGINNING NOW AND CONTINUING INTO THE AFTERNOON HOURS. * IMPACTS...WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT... ESPECIALLY FOR HIGH PROFILE VEHICLES PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WINDS OF 26 TO 39 MPH AND/OR GUSTS OF 40 TO 57 MPH ARE EXPECTED OR OCCURRING. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES... SO USE CAUTION WHEN DRIVING. && $$
The office that day
Everything else NWS Morristown, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 20, 3:48 PM EDT | Freeze Watch | MRX | Blount, Carter, Cocke, Greene, Johnson, Monroe and 5 more | 12 hr |
| Oct 20, 3:48 PM EDT | Freeze Warning | MRX | Blount, Campbell, Carter, Claiborne, Cocke, Greene and 7 more | 12 hr |
Nearby
Wind Advisories in Tennessee, 2011Every wind advisory in 2011
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.