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BendixKing KMD 250 User Manual

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Section 2

FIS Operation

Understanding Weather Reports

KMD 250 Pilot's Guide

Rev 4 Aug/2007

The described conditions follow this element.

20. Low Level Windshear: WS015/30045KT

WS indicates “windshear” not associated with convective activity.
015 indicates the windshear is expected at 1500 feet. AGL Wind is
expected from 300° (300) at 45 knots (45KT).

21. Change in Conditions: PROB40 0407

PROB40 indicates a 40% “probability” of described conditions occur-
ring between 0400Z (04)and 0700Z (07). The described conditions
follow this element.

UNDERSTANDING PIREPS

The following is an example of a typical PIREP with an explanation of the
elements.

1.

Station Identifier: KCRW

This is the station identifier of the nearest weather reporting location
to the reported conditions.

2.

Report Type: UA

Reports will be routine (UA) or urgent (UUA).

3.

Location: OV KBKW 360015-KCRW

OV indicates the report is in relation to a VOR. KBKW is the VOR
identifier, in this case Beckley VOR. 360015-KCRW indicates posi-
tion as related to the VOR. In this case, 15 miles out on the 360
degree radial. KCRW indicates this is a leg to the Charleston, West
Virginia VOR.

The next series of elements contain data that is read much like that in
METARs and TAFs. Each element starts with a 2-letter designator
which denotes the type of data with that element. The following defines
the element designators:

/TM: Time as Coordinated Universal Time

/FL: Altitude as Flight Level

/TP: Aircraft Type

/SK: Sky Cover (may include cloud height and coverage)

KCRW UA/OV KBKW 360015-KCRW/TM 1815/FL120/TP BE99/SK IMC/

WX RA/TA M08/WV 290030/TB LGT-MDT/IC LGT RIME/RM MDT MXD

ICG DURGC KROA NWBND FL080-100 1750Z

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KMD 250 FIS_R4 8/13/07 10:07 AM Page 2-70