395
FNUS73 KGRR 301833
FWSGRR
SPOT FORECAST FOR DELOREAN...MDNR
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
233 PM EDT MON MAR 30 2026
FORECAST IS BASED ON IGNITION TIME OF 1000 EDT ON MARCH 30.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
PLEASE CONTACT OUR OFFICE AT (616) 949-5150, IF YOU HAVE QUESTIONS
OR CONCERNS WITH THIS FORECAST.
DISCUSSION
TEMPERATURES HAVE OVERPERFORMED THIS AFTERNOON. COUPLE THAT WITH GUSTY
SOUTHWEST FLOW AND DRIER AIR WILL CONTINUE TO FILTER IN THIS AFTERNOON
INTO THE EARLY EVENING. TEMPERATURES WILL CONTINUE TO BE WARM INTO THE
EVENING HOURS AS WARM AIR ADVECTION MOVES INTO THE REGION. ALONG WITH
THAT WARMER AIR WILL BE SOME MOISTURE. SO EXPECT DEWPOINTS TO INCREASE
AS THE EVENING CONTINUES. WINDS SHOULD REMAIN OUT OF THE SOUTHWEST OVERNIGHT
UNTIL FRONTAL PASSAGE TUESDAY.
A STORM SYSTEM WILL BE MOVING INTO THE REGION OVERNIGHT TONIGHT.
SHOWERS AND STORMS ARE EXPECTED TO MOVE IN AFTER 10 PM WITH SCATTERED
SHOWERS AND THUNDERSTORMS THROUGH TOMORROW MORNING. THE STRONGEST STORMS
COULD BECOME SEVERE. THE MAIN THREAT IS GUSTY WINDS AND LARGE HAIL. THE
BEST TIME FOR DAMAGING WIND AND HAIL WILL BE BETWEEN 2 AM AND 8 AM.
ANOTHER ROUND OF SHOWERS AND STORMS WILL BE POSSIBLE TOMORROW WITH SEVERE
STORMS POSSIBLE TOMORROW AFTERNOON INTO THE EVENING.
REST OF TODAY
SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT).
TEMPERATURE.........59 AT IGNITION...MAX 74.
RH..................52 PERCENT AT IGNITION...MIN 35 PERCENT.
WIND (20 FT)........WINDS SOUTHWEST AT 8 MPH AT
IGNITION...OTHERWISE SOUTHWEST WINDS 7 TO 9
MPH. GUSTS UP TO 22 MPH LATE IN THE MORNING
THEN 20 MPH LATE IN THE AFTERNOON.
MIXING HEIGHT.......1000 FT AGL AT IGNITION...OTHERWISE 2900 FT
AGL.
MIXING WINDS........SOUTHWEST 15 TO 20 MPH.
SMOKE DISPERSAL.....140 /FAIR/ AT IGNITION. MAX...570 /GOOD/.
TIME (EDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM 7PM 8PM 9PM
SKY (%).........26 20 31 41 53 52 41 47 31 46 41 60
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............59 64 69 70 70 71 73 74 74 73 70 69
RH..............52 46 42 42 36 36 35 37 41 44 49 55
20 FT WIND DIR..SW SW SW SW SW SW SW SW S S S S
20 FT WIND SPD..8 8 9 9 8 7 7 8 7 6 6 6
20 FT WIND GUST.18 22 17 12 10 20 18 17 17 15 13 15
MIX HGT (KFT)...1.0 1.4 1.8 2.0 2.3 2.4 2.7 2.9 1.8 1.3 0.6 0.6
MIXING WIND DIR.SW SW SW SW SW SW SW SW SW S S S
MIXING WIND SPD.15 16 18 18 20 18 20 20 16 14 14 15
SMOKE DISPRSL...140 220 320 370 460 440 530 570 280 180 80 90
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT) THEN BECOMING
MOSTLY CLOUDY (65-75 PERCENT). SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS IN THE EVENING, THEN
SHOWERS LIKELY AND CHANCE OF THUNDERSTORMS
OVERNIGHT.
TEMPERATURE.........MIN 59.
RH..................MAX 84 PERCENT.
WIND (20 FT)........SOUTH WINDS 6 TO 10 MPH. GUSTS UP TO 24 MPH
OVERNIGHT. GUSTY AND ERRATIC WINDS EXPECTED
NEAR THUNDERSTORMS LATE IN THE EVENING. GUSTY
AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS
OVERNIGHT.
MIXING HEIGHT.......500 FT AGL.
MIXING WINDS........SOUTHWEST 14 TO 23 MPH INCREASING TO 22 TO 24
MPH AFTER 3 AM.
SMOKE DISPERSAL.....280 (FAIR) EARLY IN THE EVENING DECREASING TO
80 (POOR) LATE IN THE NIGHT.
TUESDAY
SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT). SHOWERS LIKELY
IN THE MORNING. CHANCE OF THUNDERSTORMS THROUGH
THE DAY. SHOWERS IN THE AFTERNOON.
TEMPERATURE.........MAX 69.
RH..................MIN 65 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 8 TO 10 MPH WITH GUSTS TO
AROUND 25 MPH. GUSTY AND ERRATIC WINDS EXPECTED
NEAR THUNDERSTORMS EARLY IN THE MORNING. GUSTY
AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS
EARLY IN THE MORNING.
MIXING HEIGHT.......2400 FT AGL.
MIXING WINDS........SOUTHWEST 20 TO 28 MPH INCREASING TO 29 TO 32
MPH IN THE AFTERNOON.
SMOKE DISPERSAL.....130 (FAIR) EARLY IN THE MORNING INCREASING TO
790 (EXCELLENT) IN THE AFTERNOON.
FORECASTER...CERU
REQUESTED BY...650
TYPE OF REQUEST...PRESCRIBED
.TAG 2608435.0/GRR
.DELDT 03/30/26
.FORMATTERVERSION 2.0.0
.EMAIL VASHERJ@MICHIGAN.GOV
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