National Blend Of Models (NBM) Text Guidance is displayed using this application. The purpose of this tool is too make NBM Text Guidance both easy to access and mobile friendly.
Retrieved Products
Model
Forecast Range
Forecast Interval
NBH
Hours 001-025
1 hr
NBS
Hours 006-072
3 hrs
NBE
Hours 024-192
12 hrs
Left-Hand Column Codes
Code
Description
DT
The day of the month, denoted by the standard three or four letter abbreviation
HR
Hour of the day in UTC time. This is the hour at which the forecast is valid, or if the forecast is valid for a period, the end of the forecast period.
N/X
Nighttime minimum/daytime maximum surface temperatures.
TMP
Surface temperature valid at that hour.
DPT
Surface dewpoint valid at that hour.
CLD
Forecast categories of total sky cover valid at that hour.
WDR
Forecasts of the 10-meter wind direction at the hour, given in tens of degrees.
WSP
Forecasts of the 10-meter wind speed at the hour, given in knots.
P06
Probability of precipitation (PoP) during a 6-hr period ending at that time.
P12
PoP during a 12-hr period ending at that time.
Q06
Quantitative precipitation forecast (QPF) category for liquid equivalent precipitation amount during a 6-hr period ending at that time.
Q12
QPF category for liquid equivalent precipitation amount during a 12-hr period ending at the indicated time.
SNW
Snowfall categorical forecasts during a 24-hr period ending at the indicated time.
T06
Probability of thunderstorms/conditional probability of severe thunderstorms during the 6-hr period ending at the indicated time.
T12
Probability of thunderstorms/conditional probability of severe thunderstorms during the 12-hr period ending at the indicated time.
POZ
Conditional probability of freezing precipitation occurring at the hour.
POS
Conditional probability of snow occurring at the hour.
TYP
Conditional precipitation type at the hour.
CIG
Ceiling height categorical forecasts at the hour.
VIS
Visibility categorical forecasts at the hour.
OBV
Obstruction to vision categorical forecasts at the hour.
QPF (Q06 & Q12) Categories
Code
Precipitation Amount
0
No Precipitation
1
0.01 to 0.09 inches
2
0.10 to 0.24 inches
3
0.25 to 0.49 inches
4
0.50 to 0.99 inches
5
1.00 to 1.99 inches
6
2.00 inches or greater
Precipitation Type (TYP) Categories
Code
Precipitation Type
S
Pure snow or snow grains
Z
Freezing rain/drizzle, ice pellets, or anything mixed with freezing precip
R
Pure rain/drizzle or rain mixed with snow
Snowfall Amount (SNW) Categories
Code
Snowfall Amount
0
No snow or a trace expected
1
> a trace to < 2 inches
2
2 to < 4 inches
4
4 to < 6 inches
6
6 to < 8 inches
8
8 inches or greater
Cloud (CLD) Categories
Code
Description
Coverage
CL
Clear
< 12.5 %
FW
Few
> 12.5% to 25.0%
SC
Scattered
> 25.0% to 50.0%
BK
Broken
> 50.0% to < 87.5%
OV
Overcast
> 0.875% to 100%
Ceiling Height (CIG) Categories
Code
Heights
1
< 200 feet
2
200 to < 500 feet
3
500 to < 1,000 feet
4
1,000 to < 2,000 feet
5
2,000 to < 3,100 feet
6
3,100 to < 6,600 feet
7
6,600 to < 12,000 feet
8
> 12,000 or unlimited ceiling
Obstruction To Vision (OBV) Categories
Code
Description
N
None of the following
HZ
Haze, smoke, and/or dust
BR
Mist (fog with visibility greater than 5/8 of a mile)
FG
Fog or Ground Fog (visibility less than 5/8 of a mile)
