DAY 1 FIRE WEATHER OUTLOOK NWS STORM PREDICTION CENTER NORMAN OK 0311 AM CDT MON APR 11 2016 VALID 111200Z - 121200Z ...SYNOPSIS... A SPLIT-FLOW MID-LEVEL PATTERN WILL PERSIST ACROSS THE CONTINENTAL U.S. TODAY...WITH A SOUTHERN BRANCH EXTENDING FROM THE EASTERN PACIFIC TO THE SOUTHERN PLAINS AND MS VALLEY...AND A NORTHERN BRANCH PROMINENT OVER THE NORTHERN PLAINS AND GREAT LAKES. WITHIN THE SOUTHERN STREAM...A LOW-AMPLITUDE IMPULSE WILL PROGRESS FROM TX TO THE MS VALLEY. THE RESULTANT SFC PATTERN WILL FEATURE A COLD FRONT DROPPING SOUTH ACROSS THE CENTRAL/SOUTHERN PLAINS...AND A DRYLINE SHIFTING EAST ACROSS TX. ...THE TX TRANS-PECOS EASTWARD TO THE LOW ROLLING PLAINS... BEHIND THE DRYLINE...MODESTLY ENHANCED WLY MID-LEVEL FLOW WILL COMBINE WITH A DEEP/DRY BOUNDARY LAYER TO PRODUCE SUSTAINED WINDS GENERALLY AROUND 15-20 MPH. ADDITIONALLY...MIN RH VALUES WILL BE CHARACTERISTICALLY LOW...PRIMARILY AROUND 13-20 PERCENT. WHILE THE AREA HAS REALIZED SOME RAINFALL OVER THE LAST 48 HOURS...THE CONVECTIVE/SPOTTY NATURE OF IT SHOULD ENSURE THAT FINE FUELS WILL DRY OVER A SUFFICIENTLY LARGE AREA TO SUPPORT ELEVATED FIRE-WX CONCERNS. ...PORTIONS OF THE CENTRAL/NORTHERN PLAINS... WITHIN A POST-FRONTAL REGIME...DRY CONDITIONS WILL CONTINUE TO OVERSPREAD THE REGION. DIURNAL MIXING WILL RESULT IN RH VALUES FALLING TO AROUND 20-30 PERCENT FROM EASTERN NEB TO SOUTHERN MN. AT PRESENT...THE DRIEST OF THESE CONDITIONS /CENTERED OVER THE PLAINS/ APPEARS TO BE SOMEWHAT DISPLACED FROM THE STRONGEST NWLY FLOW...WHICH WILL BE CENTERED CLOSER TO THE UPPER GREAT LAKES. THEREFORE...ANY ELEVATED FIRE-WX CONCERNS WILL LIKELY BE LOCALIZED. HOWEVER...AN ELEVATED AREA COULD BE INTRODUCED LATER TODAY IF A GREATER OVERLAP IN SUFFICIENT WINDS/LOW RH IS ANTICIPATED. ..PICCA.. 04/11/2016 ...PLEASE SEE http://ift.tt/KCM4Ij FOR GRAPHIC PRODUCT...Read more
from SPC Forecast Products http://ift.tt/x5VKfK
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