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AWU Products

rdale

EF5
For those who like learning about nowcasting, several offices down south issue AWU products like the following... Norman OK also sends these, Tulsa used to but now they use this header for an hourly zone forecast update-thingy of little value.

http://www.srh.noaa.gov/data/FWD/AWUFWD

000
FLUS74 KFWD 212015
AWUFWD

AREA WEATHER UPDATE
NATIONAL WEATHER SERVICE FORT WORTH TX
212 PM CST MON MAR 21 2005

...WARNING DECISION UPDATE FOR NORTH TEXAS...

DRYLINE HAS SLOWED ITS EASTWARD PROGRESS...NOW EXTENDING FROM NEAR
DENISON...TO DALLAS...AND SW TO JUST WEST OF TEMPLE. AIRMASS
CONTINUES DESTABILIZING JUST AHEAD OF DRYLINE. CLEARING AHEAD OF
DRYLINE ALLOWING SFC TEMPS TO WARM INTO LOW 70S...WITH MID 70S IN
CENTRAL TX. SFC-BASED CAPES AROUND 1000 J/KG JUST AHEAD OF DRYLINE.

SATELLITE SHOWS SOME ENHANCED CU ALONG DRYLINE...AND KFWS 88D
SHOWING WEAK ECHOES OVER S COLLIN AND S DALLAS CO. WILL NEED TO
CLOSELY MONITOR THESE AREAS FOR FURTHER DEVELOPMENT. ALSO...2PM SFC
OBS SUGGEST MESOLOW MAY BE FORMING BETWEEN WACO AND TEMPLE. WILL
NEED TO CLOSELY MONITOR THIS AREA FOR STORM DEVELOPMENT AS WELL.

STORM EVOLUTION WILL DEPEND ON QUALITY OF AIR AHEAD OF DRYLINE. NE-E
TX SFC TEMPS STILL IN LOWER-MID 60S WITH WIDESPREAD CLOUDS. AMOUNT
OF CLEARING WILL LIKELY DETERMINE EXTENT OF UNSTABLE AIR AND LENGTH
OF TIME STORMS WILL HAVE ACCESS TO BEST QUALITY AIR. DEEP-LAYER
SHEAR OF 60 KTS AND 0-3KM HELICITY OF 300+ OVER NE COUNTIES SUGGESTS
ORGANIZED/SUPERCELLS STILL LIKELY ...IF... THERMODYNAMICS CAN
RECOVER.

WOODALL

NOTE: THIS IS AN EXPERIMENTAL PRODUCT MEANT TO INCREASE INFORMATION
EXCHANGE ON THE STORM SCALE DURING WARNING OPERATIONS, AND MAY NOT
BE ISSUED DURING EVERY WARNING EVENT.

TERMS DEFINED:
3BS = THREE-BODY SCATTER (REFLECTIVITY FLARE SIGNATURE FROM HAIL)
AP = ANOMALOUS PROPAGATION
BWER = BOUNDED WEAK ECHO REGION
GIANT HAIL = HAIL 2 INCHES IN DIAMETER OR LARGER
HP = HIGH-PRECIPITATION SUPERCELL
LP = LOW-PRECIPITATION SUPERCELL
MCS = MESOSCALE CONVECTIVE SYSTEM (ORGANIZED THUNDERSTORM SYSTEM)
MESO = MESOCYCLONE
MT = MAX STORM TOP
POSH = PROBABILITY OF SEVERE HAIL ALGORITHM
RDA = WSR-88D RADAR SITE
RFD = REAR FLANK DOWNDRAFT
SCIT = STORM CELL IDENTIFICATION AND TRACKING ALGORITHM
SREH = STORM-RELATIVE ENVIRONMENTAL HELICITY
SRM = STORM-RELATIVE RADIAL VELOCITY
TDA = ALGORITHM TO DETECT STRONG CYCLONIC SHEAR
TVS = TORNADIC VORTEX SIGNATURE
V = GROUND-RELATIVE RADIAL VELOCITY
VCP = VOLUME COVERAGE PATTERN OF WSR-88D
VIL = VERTICALLY INTEGRATED LIQUID
VOL-Z = REFLECTIVITY AT LOW...MID...AND HIGH LEVELS
Z = REFLECTIVITY
 
Yeah I really like the Warning Decision Updates OUN issues as they provide so much more detailed information about what is going on with each individual storm, both prior to and during it being warned on. I wish MKX and GRB would issue products like that.
 
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