CHEMICAL DOWNWIND REPORT (CDM) [CDMREP]
Use to transmit warning of potential chemical hazard from a biological or chemical attack. Send as necessary. Reference: ATP-45(A) and FM 3-3.

Posted Tuesday, December 13, 2005

LINE 1 -- AREA OF VALIDITY___________________________(NBC event)

LINE 2 -- DATE AND TIME______________________________(DTG)

LINE 3 -- UNIT________________________________________(Unit Making Report)

LINE 4 -- WINDS______________________________________(DTG Winds Were Measured)

LINE 5 -- FORECAST___________________________________(DTG Forecast Begins)

LINE 6 -- AO__________________________________________(Area of Operation Affected)

LINE 7 -- DIRECTION__________________________________(Downwind Direction)

LINE 8 -- WIND SPEED_________________________________(Wind Speed in K/MPH)

LINE 9 -- AIR STABILITY_______________________________(Air Stability Category:
1 = Very Unstable (U)
2 = Unstable (U)
3 = Slightly Unstable (U)
4 = Neutral (N)
5 = Slightly Stable (S)
6 = Stable (S)
7 = Very Stable (S))

LINE 10 -- TEMPERATURE______________________________(Temperature Code:

CODE----> TEMPERATURE
05-------> 5 DEG C
04-------> 4 DEG C
03-------> 3 DEG C
02-------> 2 DEG C
01-------> 1 DEG C
00-------> 0 DEG C
51-------> -1 DEG C
52-------> -2 DEG C
53-------> -3 DEG C
54-------> -4 DEG C
55-------> -5 DEG C
56-------> -6 DEG C)

LINE 11 -- HUMIDITY__________________________________(Humidity Code:
0 = 0-9%
1 = 10-19%
2 = 20-29%
3 = 30-39%
4 = 40-49%
5 = 50-59%
6 = 60-69%
7 = 70-79%
8 = 80-89%
9 = 90-100%)

LINE 12 -- WEATHER__________________________________(Significant Weather
Phenomena Code:
3 = Blowing Snow and Sand
4 = Fog, Ice Fog, or Thick Haze
5 = Drizzle
6 = Rain
7 = Light Rain or Snow
8 = Showers of Rain, Hail
or a Mixture
9 = Thunderstorms
(-) = No Significant Phenomena)

LINE 13 -- CLOUD COVER______________________________(Cloud Cover Code)

**Repeat as necessary. Weather information valid for first two hours.

LINE 14 -- NARRATIVE_________________________________(Free Text for Additional Information Required for Clarification of Report

LINE 15 -- AUTHENTICATION___________________________(Report Authentication)