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Bloomington, Indiana 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
NWS Forecast for Bloomington IN
National Weather Service Forecast for: Bloomington IN
Issued by: National Weather Service Indianapolis, IN
Updated: 8:15 pm EDT Apr 2, 2025
 
Tonight

Tonight: Rain and thunderstorms, mainly before 2am. Some of the storms could be severe and produce heavy rainfall.  Low around 58. Breezy, with a southwest wind 13 to 20 mph, with gusts as high as 36 mph.  Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Severe
T-Storms
and Breezy
then Heavy
Rain
Thursday

Thursday: Isolated showers before 4pm, then scattered showers and thunderstorms after 5pm.  Increasing clouds, with a high near 68. West wind around 7 mph.  Chance of precipitation is 30%.
Mostly Cloudy
then
Scattered
T-storms
Thursday
Night
Thursday Night: Scattered showers and thunderstorms, then showers and possibly a thunderstorm after 7pm.  Low around 50. East northeast wind around 6 mph.  Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Showers


Friday

Friday: Showers likely and possibly a thunderstorm before 8am, then showers likely between 8am and 2pm, then showers and possibly a thunderstorm after 2pm.  High near 66. East wind around 7 mph.  Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Showers
Likely then
Showers

Friday
Night
Friday Night: Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall.  Low around 60. East wind 6 to 8 mph becoming south after midnight. Winds could gust as high as 18 mph.  Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Heavy Rain


Saturday

Saturday: Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall.  High near 66. South southwest wind 8 to 10 mph, with gusts as high as 21 mph.  Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Heavy Rain


Saturday
Night
Saturday Night: Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall.  Low around 45. North wind around 9 mph, with gusts as high as 20 mph.  Chance of precipitation is 90%.
Heavy Rain


Sunday

Sunday: Showers likely and possibly a thunderstorm before 8am, then showers likely between 8am and 2pm, then a chance of showers and thunderstorms after 2pm.  Mostly cloudy, with a high near 51. North wind around 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 60%.
Showers
Likely

Sunday
Night
Sunday Night: A 30 percent chance of showers and thunderstorms before 8pm.  Partly cloudy, with a low around 34. West northwest wind 5 to 7 mph.
Chance
Showers then
Partly Cloudy

Lo 58 °F Hi 68 °F Lo 50 °F Hi 66 °F Lo 60 °F Hi 66 °F Lo 45 °F Hi 51 °F Lo 34 °F

Wind Advisory
Tornado Watch
Flood Watch
Hazardous Weather Outlook
 

Tonight
 
Rain and thunderstorms, mainly before 2am. Some of the storms could be severe and produce heavy rainfall. Low around 58. Breezy, with a southwest wind 13 to 20 mph, with gusts as high as 36 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Thursday
 
Isolated showers before 4pm, then scattered showers and thunderstorms after 5pm. Increasing clouds, with a high near 68. West wind around 7 mph. Chance of precipitation is 30%.
Thursday Night
 
Scattered showers and thunderstorms, then showers and possibly a thunderstorm after 7pm. Low around 50. East northeast wind around 6 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Friday
 
Showers likely and possibly a thunderstorm before 8am, then showers likely between 8am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 66. East wind around 7 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Friday Night
 
Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 60. East wind 6 to 8 mph becoming south after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Saturday
 
Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 66. South southwest wind 8 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Saturday Night
 
Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 45. North wind around 9 mph, with gusts as high as 20 mph. Chance of precipitation is 90%.
Sunday
 
Showers likely and possibly a thunderstorm before 8am, then showers likely between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 51. North wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Sunday Night
 
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 34. West northwest wind 5 to 7 mph.
Monday
 
Mostly sunny, with a high near 52. West northwest wind 6 to 9 mph, with gusts as high as 21 mph.
Monday Night
 
Partly cloudy, with a low around 28.
Tuesday
 
Sunny, with a high near 50.
Tuesday Night
 
Mostly clear, with a low around 33.
Wednesday
 
Mostly sunny, with a high near 57.

 

Forecast from NOAA-NWS for Bloomington IN.

Weather Forecast Discussion
798
FXUS63 KIND 022340 AAA
AFDIND

Area Forecast Discussion...UPDATED
National Weather Service Indianapolis IN
740 PM EDT Wed Apr 2 2025

.KEY MESSAGES...

- Severe weather likely late today and this evening into the early
  overnight. Tornadoes, widespread damaging winds are likely with
  large hail and flash flooding possible as well

- Flood Watch this evening through Sunday morning with 4 rounds of
  moderate to heavy rain and total rainfall potentially as high as 6-9
  inches

- Wind Advisory through 1 am tonight with wind gusts to 50 mph
  expected

- Widespread, significant river flooding expected late week into
  next week.

&&

.MESOSCALE UPDATE...
Issued at 740 PM EDT Wed Apr 2 2025

A QLCS with embedded mesocyclones and both leading- and trailing-
stratiform area is present over central Illinois. Its arrival at the
Indiana state line is expected around or just after 8:00pm. Our
greatest concern is where embedded mesocyclones exist (just
northeast of Effingham and just west of Olney). Also, favorable 0-3-
km shear vector orientation with increasing higher reflectivity
gradient suggest we may see an increase of more distinct bowing
segments. Where these suggest occur, from their apex northward, a
QLCS mosovortex/tornado threat will be present. Terre Haute, to
Sullivan, to Vincennes is where our greatest concern is over the
next 90 minutes.

&&

.SHORT TERM (This Evening through Thursday)...
Issued at 152 PM EDT Wed Apr 2 2025

A strong mid-latitude cyclone is taking shape over the Midwest
currently, with a broad warm sector setting up across Indiana. The
system`s warm front passed through early this morning with a round
of elevated convection. Winds are now out of the south and
temperatures have climbed into the low 70s as of 1pm, dew points are
near 60F. Continued warm moist advection is expected as we head into
the afternoon hours.

Given the strength of the mid-latitude cyclone, a tight MSLP
gradient has become established over Indiana. Very gusty gradient
winds are developing with gusts already to 45mph at IND, and up to
52mph near Vincennes. High-resolution guidance suggests continued
gusts 45 to 55 mph are likely at times this afternoon.

These strong southerly winds will allow moisture to advect
northward, setting the stage for our convective threat later this
afternoon and evening.

SEVERE WEATHER POTENTIAL AND HAZARDS

Thunderstorms are ongoing along a cold front across Illinois and
Missouri as of this writing, with eastward propagation expected
through the afternoon hours. Ahead of the line, strong southerly
flow is promoting rapid moisture advection which will help
destabilize the atmosphere, especially in the lower levels. Thick
cirrus from the upstream convection could limit diurnal heating
somewhat...but instability from advection alone will likely be more
than enough to compensate.

Our primary hazard will depend on storm mode, which is a bit tricky
today. Shear vectors are roughly parallel with the initiating
boundary, in this case the system`s cold front...so a linear mode is
preferred. However, there may be enough forcing to overcome weak CIN
within the open warm sector to promote a few discrete cells near and
just ahead of the front / ongoing line of storms.

Model soundings show steep lapse rates with moisture through the
column. Additionally, long curved hodographs indicate large amounts
of wind shear especially in the lower levels. Should a discrete cell
form then it could easily become a supercell with all hazards
possible, including tornadoes and large hail. Tornado potential will
depend on the quality of low-level moisture and near-ground lapse
rates. That being said, mesoscale trends will need to be monitored
very closely as the event unfolds.

As mentioned above, our most likely storm mode will be linear. In
this case, strong damaging winds, potentially significant (over
75mph), are the most likely hazard. A QLCS tornado or two is
possible as well, especially within line breaks, due to the large
amounts of low-level shear present. It is also possible that a mixed
mode occurs where we begin with a few discrete cells before upscale
growth transitions everything into a line.

Lastly, flash flooding is possible as some storm training is
possible. Some of the higher-resolution model runs are depicting 2-4
inches of rain in isolated swaths.

THURSDAY

The cold front mentioned above looks to cross the state during the
night tonight, settling across the Ohio River by around sunrise.
North of the front, cooler temperatures and diminished winds are
expected.

Zooming back out a bit, guidance is showing a deepening trough over
the Rockies with a subtle wave ejecting eastward early Thursday.
This wave then rides the front allowing it to lift northward a bit.
Showers and thunderstorms expand in coverage through the day as
lifting arrives ahead of the wave.

Our flooding threat increases substantially later Thursday and into
the weekend. Though Thursday`s risk depends on how much rain we see
across the region today. More details in the long range discussion
below.

&&

.LONG TERM (Thursday Night through Wednesday)...
Issued at 223 PM EDT Wed Apr 2 2025

...MULTIPLE ROUNDS OF HEAVY RAIN THROUGH SUNDAY MORNING...
...SIGNIFICANT FLOODING POSSIBLE...

High confidences concerns for significant flooding across the Ohio
Valley as multiple rounds of moderate to heavy rainfall will impact
the region into Sunday. The frontal boundary that will pass through
the forecast area tonight will becomes quasi-stationary across the
Ohio Valley on Thursday. A highly amplified and blocky upper level
pattern across the country anchored by a deep trough over the
Intermountain West and a strong ridge off the southeast US coast
will place the Ohio Valley within deep southwest flow that will draw
a rich fetch of moisture from both the equatorial Pacific and the
Gulf. Additionally the sharp baroclinic zone that will align north
of the stagnant frontal boundary will further promote strong lift
and convergence with a strong upper jet supporting divergence aloft.
This setup is historically supportive of a prolonged risk for heavy
rainfall and flooding for the Ohio Valley and central Indiana.

Thursday Night through Sunday

The second wave of heavier rainfall and storms for Thursday night
(with tonight being the first) has trended further north into the
forecast area with recent model runs as the boundary is likely to
become nearly stationary just south of the Ohio River. Rain showers
will return as north as early as Thursday afternoon but the
widespread heavier rainfall rates will focus Thursday night. A
strong mid level deformation axis north of the surface front will
lend its weight to enhancing rainfall across the forecast area with
growing confidence in a widespread 1 to 2 inches by Friday morning.
In addition to the rainfall received later today and tonight...these
amounts will lead to exacerbating flooding concerns while only
serving to magnify the impacts from the third and fourth waves of
heavier rainfall set to impact the region Friday night through early
Sunday.

Rainfall coverage will briefly diminish on Friday morning leaving
cloudy skies and a cool...damp easterly flow across much of central
Indiana. The front will shift further north into the region Friday
afternoon with the third wave of rainfall poised to arrive late day
into Friday night as surface waves ride along the boundary. Precip
efficiency levels should be excellent as deep convergence up through
700mb aligns with the axis of highest precip water values above the
climatological max and near 300% of normal for early April. This
will support widespread heavy rainfall over the entire forecast area
all night and into Saturday morning. Additional rainfall amounts of
1 to 3 inches look likely.

Rainfall coverage and rates may diminish briefly again Saturday
morning before the arrival of a stronger surface wave into the
region by late Saturday triggers the fourth and final wave of
rainfall into the Ohio Valley for Saturday afternoon and night with
the frontal boundary shifting back to the southeast of the region as
the night progresses. Despite slightly lower PWAT values...low level
profiles remain ideal for heavy...efficient rainfall to impact the
forecast area for several hours before transitioning to lighter and
more scattered rain late Saturday night as the trailing upper level
trough moves in from the west. Flooding concerns will be maximized
by Friday night and Saturday as even a small amount of rain is
likely to initiate or worsen ongoing flooding.

Temperatures may struggle to climb out of the 40s on Sunday with a
stiff northerly wind and periodic light showers and maybe a
few snowflakes making for a miserable end to the weekend.

Rainfall Amounts and Flooding

To reiterate the four primary waves of rainfall will come...

- This Evening/Early Overnight
- Thursday Night
- Friday Late Day/Friday Night
- Saturday Afternoon/Night

Widespread rainfall amount of 4 to 7 inches are likely across the
forecast area later today through Sunday with highest amounts south.
The potential for up to 8-9 inches may sneak up into far southern
portions of the forecast area as well. These rainfall amounts will
produce significant flooding...especially along rivers...creeks and
streams and within poor drainage areas. High confidence exists that
the heavy rainfall anticipated through Sunday could be one of the
highest impact flooding events for central Indiana over the last 15
years.

A reminder that the Flood Watch will go into effect for the entire
forecast area at 00Z tonight and run through 12Z Sunday and now
covers all of central Indiana.

Monday through Wednesday

Other than a small threat for a few light areas of precipitation
Monday into Tuesday...the pattern will shift to a cooler and drier
regime that likely extends out for much of next week as deep
troughing develops across the eastern part of the country. Highs by
Monday and Tuesday will only range from the mid 40s to mid 50s with
those temperatures persisting out through later next week.

&&

.AVIATION (00Z TAF Issuance)...
Issued at 605 PM EDT Wed Apr 2 2025

Impacts:

- Thunderstorms this evening. Some Severe.

- Southwest wind gusts 40 to 45 knots this evening. Severe
gusts in excess of 55 Knts with storms.

- MVFR and worse conditions possible at times and especially in
  thunderstorms

- Rain returns Thursday evening

Discussion:

Radar shows a strong squall line stretching from NE IL across
Central IL to SE MO and Arkansas. HRRR suggests this line of storms
will push across Central Indiana within the 00Z-05Z time frame.
Ahead of the line VFR Conditions with strong gusts to 40 knts will
be possible.

As the line passes severe gusts, heavy rain and MVFR or worse cigs
will be possible.

The line will exit overnight leading to a quick return to VFR after
06Z. Here, forecast soundings show drying and subsidence within the
column in the wake of the convective line as surface high pressure
builds across the area from the plains states.


&&

.IND WATCHES/WARNINGS/ADVISORIES...
Wind Advisory until 1 AM EDT Thursday for INZ021-028>031-035>049-
051>057-060>065-067>072.

Flood Watch through Sunday morning for INZ021-028>031-035>049-
051>057-060>065-067>072.

&&

$$

MESOSCALE...BRB
SHORT TERM...Eckhoff
LONG TERM...Ryan
AVIATION...Puma
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Forecast Discussion from: NOAA-NWS Script developed by: El Dorado Weather






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