…Tropical Storm Debby is expected to cause potentially catastrophic
Flash and Urban Flooding, life-threatening storm surge, and strong winds
across portions of north Florida and the Southeast…
…There’s potential for Excessive Rainfall and Severe Thunderstorms
across portions of the Upper Midwest, Lower Great Lakes and Northeast
through Tuesday…
…There are Excessive Heat Warnings over parts of Central/Southeastern
California and the Southwest and Heat Advisories over parts of the Lower
Mississippi Valley…
Tropical storm Debby is located over north Florida as of 3 p.m. ET and is
moving NNE at 7mph. Tropical storm warnings and storm surge warnings are
in effect for northwestern Florida and the Georgia and South Carolina
coastlines. In terms of severe weather impact, the Storm Prediction Center
issued a Slight Risk of Severe Thunderstorms (level 2/5) for portions of
northern Florida through southern/coastal Georgia and into South
Carolina’s central coast, where the chance for tornadoes is greatest. The
severe weather threat will persist into Tuesday for the potential of
spin-up tornadoes.
Debby is likely to produce potentially historic heavy rainfall across
north Florida and southeast Georgia and South Carolina through Friday
morning. Southeast Georgia and the Carolinas are forecast to receive 10-20
inches of rainfall with isolated maximum values of 30 “. Heavy rain will
start to creep northward by the middle of the week for North Carolina to
the Mid-Atlantic. Action should be taken to prep for impacts from high
water. Tropical force storm winds may make travel difficult for first
responders so action should be taken to protect life and property before
inclement weather conditions arrive. For more information go to
hurricanes.gov.
A slow moving cold front extending from the Northern High Plains to the
Northeast will be the focus for scattered showers and thunderstorms for
the remainder of Monday. Hail and damaging winds will be the biggest
threat. Additionally, the front will sag southeast Tuesday and put areas
along the I95 corridor and the Mid-Atlantic under the risk for flash
flooding where thunderstorms train over the same area; more than a couple
of inches of rain in a short amount of time could fall. There is a
Moderate Risk of Excessive Rainfall in effect for Southeast Pennsylvania
and New Jersey, and there is a Slight Risk of Excessive Rainfall for
northern Maryland to coastal New England.
High temperatures will likely remain well below average across the
Northern Plains and Upper Midwest over the next several days, while
Excessive Heat Risk grows across much of the southern tier of the U.S.
from the Central Gulf Coast/Lower Mississippi Valley to California.
Excessive Heat Warnings are in effect across the Desert Southwest and
portions of California’s southern/central Valley through Tuesday as highs
reach into the low 110s. Central Texas will see highs in the 100s, while
the Gulf Coast high temperatures look to hover around the century mark
into the middle of the week. High dewpoints will also contribute to heat
stress. Stay hydrated and avoid working in the peak heating hours if able.
Elsewhere, Monsoonal storms are likely to continue across the Southwest
and Four Corners region this week with a Slight Risk of Excessive rainfall
over far south-central Arizona on Tuesday.
Kebede/Wilder
Graphics available at
https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php
